From 7cbe638e41cd4cf199bfb7798fe572ddf3a39f0a Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sat, 14 Dec 2013 05:55:26 +0100 Subject: ARM: armv7: Make indirect vector addresses globl Make indirect vectors addresses global, so they can be replaced by various code that needs to do so. For example the MX6 PCI express driver needs to temporarily replace data abort handler when reading the config space. Signed-off-by: Marek Vasut Cc: Albert Aribaud Cc: Eric Nelson Cc: Fabio Estevam Cc: Stefano Babic --- arch/arm/cpu/armv7/start.S | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S index 6c9b11a..5aac773 100644 --- a/arch/arm/cpu/armv7/start.S +++ b/arch/arm/cpu/armv7/start.S @@ -38,12 +38,19 @@ _irq: .word _irq _fiq: .word _fiq _pad: .word 0x12345678 /* now 16*4=64 */ #else +.globl _undefined_instruction _undefined_instruction: .word undefined_instruction +.globl _software_interrupt _software_interrupt: .word software_interrupt +.globl _prefetch_abort _prefetch_abort: .word prefetch_abort +.globl _data_abort _data_abort: .word data_abort +.globl _not_used _not_used: .word not_used +.globl _irq _irq: .word irq +.globl _fiq _fiq: .word fiq _pad: .word 0x12345678 /* now 16*4=64 */ #endif /* CONFIG_SPL_BUILD */ -- cgit v1.1 From 798144928011ca3baca55b51c43d5e17fedbb4e0 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sat, 14 Dec 2013 06:27:26 +0100 Subject: ARM: mx6: Add PCI express clock configuration Split the SATA clock enabling function and add PCI express clock enabling function. The SATA clock enabling function starts up the 100MHz SATA reference PLL in ENET_PLL register, but the code can be re-used to enable the 125MHz PCIe reference in ENET_PLL, so pull this code into separate function. Moreover, add the PCIe clock enabling code. Signed-off-by: Marek Vasut Cc: Albert Aribaud Cc: Eric Nelson Cc: Fabio Estevam Cc: Stefano Babic Acked-by: Jagannadha Sutradharudu Teki --- arch/arm/cpu/armv7/mx6/clock.c | 75 ++++++++++++++++++++++++++++++----- arch/arm/include/asm/arch-mx6/clock.h | 1 + 2 files changed, 66 insertions(+), 10 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index 5617a41..61f71cf 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -412,17 +412,12 @@ u32 imx_get_fecclk(void) return decode_pll(PLL_ENET, MXC_HCLK); } -int enable_sata_clock(void) +static int enable_enet_pll(uint32_t en) { - u32 reg = 0; - s32 timeout = 100000; struct mxc_ccm_reg *const imx_ccm = (struct mxc_ccm_reg *) CCM_BASE_ADDR; - - /* Enable sata clock */ - reg = readl(&imx_ccm->CCGR5); /* CCGR5 */ - reg |= MXC_CCM_CCGR5_SATA_MASK; - writel(reg, &imx_ccm->CCGR5); + s32 timeout = 100000; + u32 reg = 0; /* Enable PLLs */ reg = readl(&imx_ccm->analog_pll_enet); @@ -437,10 +432,70 @@ int enable_sata_clock(void) return -EIO; reg &= ~BM_ANADIG_PLL_SYS_BYPASS; writel(reg, &imx_ccm->analog_pll_enet); - reg |= BM_ANADIG_PLL_ENET_ENABLE_SATA; + reg |= en; writel(reg, &imx_ccm->analog_pll_enet); + return 0; +} - return 0 ; +static void ungate_sata_clock(void) +{ + struct mxc_ccm_reg *const imx_ccm = + (struct mxc_ccm_reg *)CCM_BASE_ADDR; + + /* Enable SATA clock. */ + setbits_le32(&imx_ccm->CCGR5, MXC_CCM_CCGR5_SATA_MASK); +} + +static void ungate_pcie_clock(void) +{ + struct mxc_ccm_reg *const imx_ccm = + (struct mxc_ccm_reg *)CCM_BASE_ADDR; + + /* Enable PCIe clock. */ + setbits_le32(&imx_ccm->CCGR4, MXC_CCM_CCGR4_PCIE_MASK); +} + +int enable_sata_clock(void) +{ + ungate_sata_clock(); + return enable_enet_pll(BM_ANADIG_PLL_ENET_ENABLE_SATA); +} + +int enable_pcie_clock(void) +{ + struct anatop_regs *anatop_regs = + (struct anatop_regs *)ANATOP_BASE_ADDR; + struct mxc_ccm_reg *ccm_regs = (struct mxc_ccm_reg *)CCM_BASE_ADDR; + + /* + * Here be dragons! + * + * The register ANATOP_MISC1 is not documented in the Freescale + * MX6RM. The register that is mapped in the ANATOP space and + * marked as ANATOP_MISC1 is actually documented in the PMU section + * of the datasheet as PMU_MISC1. + * + * Switch LVDS clock source to SATA (0xb), disable clock INPUT and + * enable clock OUTPUT. This is important for PCI express link that + * is clocked from the i.MX6. + */ +#define ANADIG_ANA_MISC1_LVDSCLK1_IBEN (1 << 12) +#define ANADIG_ANA_MISC1_LVDSCLK1_OBEN (1 << 10) +#define ANADIG_ANA_MISC1_LVDS1_CLK_SEL_MASK 0x0000001F + clrsetbits_le32(&anatop_regs->ana_misc1, + ANADIG_ANA_MISC1_LVDSCLK1_IBEN | + ANADIG_ANA_MISC1_LVDS1_CLK_SEL_MASK, + ANADIG_ANA_MISC1_LVDSCLK1_OBEN | 0xb); + + /* PCIe reference clock sourced from AXI. */ + clrbits_le32(&ccm_regs->cbcmr, MXC_CCM_CBCMR_PCIE_AXI_CLK_SEL); + + /* Party time! Ungate the clock to the PCIe. */ + ungate_sata_clock(); + ungate_pcie_clock(); + + return enable_enet_pll(BM_ANADIG_PLL_ENET_ENABLE_SATA | + BM_ANADIG_PLL_ENET_ENABLE_PCIE); } unsigned int mxc_get_clock(enum mxc_clock clk) diff --git a/arch/arm/include/asm/arch-mx6/clock.h b/arch/arm/include/asm/arch-mx6/clock.h index e31ba0a..1b4ded7 100644 --- a/arch/arm/include/asm/arch-mx6/clock.h +++ b/arch/arm/include/asm/arch-mx6/clock.h @@ -55,6 +55,7 @@ unsigned int mxc_get_clock(enum mxc_clock clk); void enable_ocotp_clk(unsigned char enable); void enable_usboh3_clk(unsigned char enable); int enable_sata_clock(void); +int enable_pcie_clock(void); int enable_i2c_clk(unsigned char enable, unsigned i2c_num); void enable_ipu_clock(void); int enable_fec_anatop_clock(enum enet_freq freq); -- cgit v1.1 From e9be4292e4f32bcdfb88c19407da281e36447498 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sat, 14 Dec 2013 05:55:28 +0100 Subject: ARM: mx6: Add PCI express driver Add PCIe driver for the Freescale i.MX6 SoC . This driver operates the PCIe block in RC mode only, the EP mode is NOT supported. The driver is tested with the Intel e1000 NIC driver. Signed-off-by: Marek Vasut Cc: Albert Aribaud Cc: Eric Nelson Cc: Fabio Estevam Cc: Stefano Babic --- arch/arm/include/asm/arch-mx6/iomux.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/include/asm/arch-mx6/iomux.h b/arch/arm/include/asm/arch-mx6/iomux.h index fe4675e..f9ee0d9 100644 --- a/arch/arm/include/asm/arch-mx6/iomux.h +++ b/arch/arm/include/asm/arch-mx6/iomux.h @@ -15,6 +15,33 @@ #define IOMUXC_GPR1_OTG_ID_ENET_RX_ERR (0<<13) #define IOMUXC_GPR1_OTG_ID_GPIO1 (1<<13) #define IOMUXC_GPR1_OTG_ID_MASK (1<<13) +#define IOMUXC_GPR1_REF_SSP_EN (1 << 16) +#define IOMUXC_GPR1_TEST_POWERDOWN (1 << 18) + +/* + * IOMUXC_GPR8 bit fields + */ +#define IOMUXC_GPR8_PCS_TX_DEEMPH_GEN1_MASK (0x3f << 0) +#define IOMUXC_GPR8_PCS_TX_DEEMPH_GEN1_OFFSET 0 +#define IOMUXC_GPR8_PCS_TX_DEEMPH_GEN2_3P5DB_MASK (0x3f << 6) +#define IOMUXC_GPR8_PCS_TX_DEEMPH_GEN2_3P5DB_OFFSET 6 +#define IOMUXC_GPR8_PCS_TX_DEEMPH_GEN2_6DB_MASK (0x3f << 12) +#define IOMUXC_GPR8_PCS_TX_DEEMPH_GEN2_6DB_OFFSET 12 +#define IOMUXC_GPR8_PCS_TX_SWING_FULL_MASK (0x7f << 18) +#define IOMUXC_GPR8_PCS_TX_SWING_FULL_OFFSET 18 +#define IOMUXC_GPR8_PCS_TX_SWING_LOW_MASK (0x7f << 25) +#define IOMUXC_GPR8_PCS_TX_SWING_LOW_OFFSET 25 + +/* + * IOMUXC_GPR12 bit fields + */ +#define IOMUXC_GPR12_LOS_LEVEL_9 (0x9 << 4) +#define IOMUXC_GPR12_LOS_LEVEL_MASK (0x1f << 4) +#define IOMUXC_GPR12_APPS_LTSSM_ENABLE (1 << 10) +#define IOMUXC_GPR12_DEVICE_TYPE_EP (0x0 << 12) +#define IOMUXC_GPR12_DEVICE_TYPE_RC (0x2 << 12) +#define IOMUXC_GPR12_DEVICE_TYPE_MASK (0xf << 12) + /* * IOMUXC_GPR13 bit fields */ -- cgit v1.1 From c8d4b2f8266fac1bcbf9101838939054b8a23011 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Tue, 28 Jan 2014 00:14:28 +0100 Subject: ARM: IXP: Remove the IXP architecture support The architecture is unmaintained and dead, remove it. Signed-off-by: Marek Vasut Cc: Albert Aribaud Cc: Michael Schwingen Cc: Tom Rini --- arch/arm/cpu/ixp/Makefile | 12 - arch/arm/cpu/ixp/config.mk | 16 - arch/arm/cpu/ixp/cpu.c | 100 ------ arch/arm/cpu/ixp/interrupts.c | 66 ---- arch/arm/cpu/ixp/start.S | 430 ----------------------- arch/arm/cpu/ixp/timer.c | 101 ------ arch/arm/cpu/ixp/u-boot.lds | 91 ----- arch/arm/include/asm/arch-ixp/ixp425.h | 548 ------------------------------ arch/arm/include/asm/arch-ixp/ixp425pci.h | 174 ---------- arch/arm/include/asm/global_data.h | 3 - 10 files changed, 1541 deletions(-) delete mode 100644 arch/arm/cpu/ixp/Makefile delete mode 100644 arch/arm/cpu/ixp/config.mk delete mode 100644 arch/arm/cpu/ixp/cpu.c delete mode 100644 arch/arm/cpu/ixp/interrupts.c delete mode 100644 arch/arm/cpu/ixp/start.S delete mode 100644 arch/arm/cpu/ixp/timer.c delete mode 100644 arch/arm/cpu/ixp/u-boot.lds delete mode 100644 arch/arm/include/asm/arch-ixp/ixp425.h delete mode 100644 arch/arm/include/asm/arch-ixp/ixp425pci.h (limited to 'arch/arm') diff --git a/arch/arm/cpu/ixp/Makefile b/arch/arm/cpu/ixp/Makefile deleted file mode 100644 index 4e66523..0000000 --- a/arch/arm/cpu/ixp/Makefile +++ /dev/null @@ -1,12 +0,0 @@ -# -# (C) Copyright 2000-2006 -# Wolfgang Denk, DENX Software Engineering, wd@denx.de. -# -# SPDX-License-Identifier: GPL-2.0+ -# - -extra-y = start.o - -obj-y += cpu.o -obj-$(CONFIG_USE_IRQ) += interrupts.o -obj-y += timer.o diff --git a/arch/arm/cpu/ixp/config.mk b/arch/arm/cpu/ixp/config.mk deleted file mode 100644 index 894861f..0000000 --- a/arch/arm/cpu/ixp/config.mk +++ /dev/null @@ -1,16 +0,0 @@ -# -# (C) Copyright 2002 -# Sysgo Real-Time Solutions, GmbH -# Marius Groeger -# -# SPDX-License-Identifier: GPL-2.0+ -# - -BIG_ENDIAN = y - -PLATFORM_RELFLAGS += -mbig-endian - -PLATFORM_CPPFLAGS += -mbig-endian -march=armv5te -mtune=strongarm1100 - -PLATFORM_LDFLAGS += -EB -USE_PRIVATE_LIBGCC = yes diff --git a/arch/arm/cpu/ixp/cpu.c b/arch/arm/cpu/ixp/cpu.c deleted file mode 100644 index 4387c18..0000000 --- a/arch/arm/cpu/ixp/cpu.c +++ /dev/null @@ -1,100 +0,0 @@ -/* - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH - * Marius Groeger - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH - * Alex Zuepke - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/* - * CPU specific code - */ - -#include -#include -#include -#include -#include - -static void cache_flush(void); - -#if defined(CONFIG_DISPLAY_CPUINFO) -int print_cpuinfo (void) -{ - unsigned long id; - int speed = 0; - - asm ("mrc p15, 0, %0, c0, c0, 0":"=r" (id)); - - puts("CPU: Intel IXP425 at "); - switch ((id & 0x000003f0) >> 4) { - case 0x1c: - speed = 533; - break; - - case 0x1d: - speed = 400; - break; - - case 0x1f: - speed = 266; - break; - } - - if (speed) - printf("%d MHz\n", speed); - else - puts("unknown revision\n"); - - return 0; -} -#endif /* CONFIG_DISPLAY_CPUINFO */ - -int cleanup_before_linux (void) -{ - /* - * this function is called just before we call linux - * it prepares the processor for linux - * - * just disable everything that can disturb booting linux - */ - - disable_interrupts (); - - /* turn off I-cache */ - icache_disable(); - dcache_disable(); - - /* flush I-cache */ - cache_flush(); - - return 0; -} - -/* flush I/D-cache */ -static void cache_flush (void) -{ - unsigned long i = 0; - - asm ("mcr p15, 0, %0, c7, c5, 0": :"r" (i)); -} - -/* FIXME */ -/* -void pci_init(void) -{ - return; -} -*/ - -int cpu_eth_init(bd_t *bis) -{ -#ifdef CONFIG_IXP4XX_NPE - npe_initialize(bis); -#endif - return 0; -} diff --git a/arch/arm/cpu/ixp/interrupts.c b/arch/arm/cpu/ixp/interrupts.c deleted file mode 100644 index 7694c6a..0000000 --- a/arch/arm/cpu/ixp/interrupts.c +++ /dev/null @@ -1,66 +0,0 @@ -/* - * (C) Copyright 2006 - * Stefan Roese, DENX Software Engineering, sr@denx.de. - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH - * Marius Groeger - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH - * Alex Zuepke - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include -#include -#include - -struct _irq_handler { - void *m_data; - void (*m_func)( void *data); -}; - -static struct _irq_handler IRQ_HANDLER[N_IRQS]; - -static void default_isr(void *data) -{ - printf("default_isr(): called for IRQ %d, Interrupt Status=%x PR=%x\n", - (int)data, *IXP425_ICIP, *IXP425_ICIH); -} - -static int next_irq(void) -{ - return (((*IXP425_ICIH & 0x000000fc) >> 2) - 1); -} - -void do_irq (struct pt_regs *pt_regs) -{ - int irq = next_irq(); - - IRQ_HANDLER[irq].m_func(IRQ_HANDLER[irq].m_data); -} - -void irq_install_handler (int irq, interrupt_handler_t handle_irq, void *data) -{ - if (irq >= N_IRQS || !handle_irq) - return; - - IRQ_HANDLER[irq].m_data = data; - IRQ_HANDLER[irq].m_func = handle_irq; -} - -int arch_interrupt_init (void) -{ - int i; - - /* install default interrupt handlers */ - for (i = 0; i < N_IRQS; i++) - irq_install_handler(i, default_isr, (void *)i); - - /* configure interrupts for IRQ mode */ - *IXP425_ICLR = 0x00000000; - - return (0); -} diff --git a/arch/arm/cpu/ixp/start.S b/arch/arm/cpu/ixp/start.S deleted file mode 100644 index 82c868a..0000000 --- a/arch/arm/cpu/ixp/start.S +++ /dev/null @@ -1,430 +0,0 @@ -/* vi: set ts=8 sw=8 noet: */ -/* - * u-boot - Startup Code for XScale IXP - * - * Copyright (C) 2003 Kyle Harris - * - * Based on startup code example contained in the - * Intel IXP4xx Programmer's Guide and past u-boot Start.S - * samples. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include -#include -#include -#include - -#define MMU_Control_M 0x001 /* Enable MMU */ -#define MMU_Control_A 0x002 /* Enable address alignment faults */ -#define MMU_Control_C 0x004 /* Enable cache */ -#define MMU_Control_W 0x008 /* Enable write-buffer */ -#define MMU_Control_P 0x010 /* Compatability: 32 bit code */ -#define MMU_Control_D 0x020 /* Compatability: 32 bit data */ -#define MMU_Control_L 0x040 /* Compatability: */ -#define MMU_Control_B 0x080 /* Enable Big-Endian */ -#define MMU_Control_S 0x100 /* Enable system protection */ -#define MMU_Control_R 0x200 /* Enable ROM protection */ -#define MMU_Control_I 0x1000 /* Enable Instruction cache */ -#define MMU_Control_X 0x2000 /* Set interrupt vectors at 0xFFFF0000 */ -#define MMU_Control_Init (MMU_Control_P|MMU_Control_D|MMU_Control_L) - - -/* - * Macro definitions - */ - /* Delay a bit */ - .macro DELAY_FOR cycles, reg0 - ldr \reg0, =\cycles - subs \reg0, \reg0, #1 - subne pc, pc, #0xc - .endm - - /* wait for coprocessor write complete */ - .macro CPWAIT reg - mrc p15,0,\reg,c2,c0,0 - mov \reg,\reg - sub pc,pc,#4 - .endm - -.globl _start -_start: - ldr pc, _reset - ldr pc, _undefined_instruction - ldr pc, _software_interrupt - ldr pc, _prefetch_abort - ldr pc, _data_abort - ldr pc, _not_used - ldr pc, _irq - ldr pc, _fiq - -_reset: .word reset -_undefined_instruction: .word undefined_instruction -_software_interrupt: .word software_interrupt -_prefetch_abort: .word prefetch_abort -_data_abort: .word data_abort -_not_used: .word not_used -_irq: .word irq -_fiq: .word fiq - - .balignl 16,0xdeadbeef - - -/* - * Startup Code (reset vector) - * - * do important init only if we don't start from memory! - * - relocate armboot to ram - * - setup stack - * - jump to second stage - */ - -.globl _TEXT_BASE -_TEXT_BASE: -#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_TEXT_BASE) - .word CONFIG_SPL_TEXT_BASE -#else - .word CONFIG_SYS_TEXT_BASE -#endif - -/* - * These are defined in the board-specific linker script. - * Subtracting _start from them lets the linker put their - * relative position in the executable instead of leaving - * them null. - */ -.globl _bss_start_ofs -_bss_start_ofs: - .word __bss_start - _start - -.globl _bss_end_ofs -_bss_end_ofs: - .word __bss_end - _start - -.globl _end_ofs -_end_ofs: - .word _end - _start - -#ifdef CONFIG_USE_IRQ -/* IRQ stack memory (calculated at run-time) */ -.globl IRQ_STACK_START -IRQ_STACK_START: - .word 0x0badc0de - -/* IRQ stack memory (calculated at run-time) */ -.globl FIQ_STACK_START -FIQ_STACK_START: - .word 0x0badc0de -#endif - -/* IRQ stack memory (calculated at run-time) + 8 bytes */ -.globl IRQ_STACK_START_IN -IRQ_STACK_START_IN: - .word 0x0badc0de - -/* - * the actual reset code - */ - -reset: - /* disable mmu, set big-endian */ - mov r0, #0xf8 - mcr p15, 0, r0, c1, c0, 0 - CPWAIT r0 - - /* invalidate I & D caches & BTB */ - mcr p15, 0, r0, c7, c7, 0 - CPWAIT r0 - - /* invalidate I & Data TLB */ - mcr p15, 0, r0, c8, c7, 0 - CPWAIT r0 - - /* drain write and fill buffers */ - mcr p15, 0, r0, c7, c10, 4 - CPWAIT r0 - - /* disable write buffer coalescing */ - mrc p15, 0, r0, c1, c0, 1 - orr r0, r0, #1 - mcr p15, 0, r0, c1, c0, 1 - CPWAIT r0 - - /* set EXP CS0 to the optimum timing */ - ldr r1, =CONFIG_SYS_EXP_CS0 - ldr r2, =IXP425_EXP_CS0 - str r1, [r2] - - /* make sure flash is visible at 0 */ - mov r1, #CONFIG_SYS_SDR_CONFIG - ldr r2, =IXP425_SDR_CONFIG - str r1, [r2] - - /* disable refresh cycles */ - mov r1, #0 - ldr r3, =IXP425_SDR_REFRESH - str r1, [r3] - - /* send nop command */ - mov r1, #3 - ldr r4, =IXP425_SDR_IR - str r1, [r4] - DELAY_FOR 0x4000, r0 - - /* set SDRAM internal refresh val */ - ldr r1, =CONFIG_SYS_SDRAM_REFRESH_CNT - str r1, [r3] - DELAY_FOR 0x4000, r0 - - /* send precharge-all command to close all open banks */ - mov r1, #2 - str r1, [r4] - DELAY_FOR 0x4000, r0 - - /* provide 8 auto-refresh cycles */ - mov r1, #4 - mov r5, #8 -111: str r1, [r4] - DELAY_FOR 0x100, r0 - subs r5, r5, #1 - bne 111b - - /* set mode register in sdram */ - mov r1, #CONFIG_SYS_SDR_MODE_CONFIG - str r1, [r4] - DELAY_FOR 0x4000, r0 - - /* send normal operation command */ - mov r1, #6 - str r1, [r4] - DELAY_FOR 0x4000, r0 - - /* invalidate I & D caches & BTB */ - mcr p15, 0, r0, c7, c7, 0 - CPWAIT r0 - - /* invalidate I & Data TLB */ - mcr p15, 0, r0, c8, c7, 0 - CPWAIT r0 - - /* drain write and fill buffers */ - mcr p15, 0, r0, c7, c10, 4 - CPWAIT r0 - - /* remove flash mirror at 0x00000000 */ - ldr r2, =IXP425_EXP_CFG0 - ldr r1, [r2] - bic r1, r1, #0x80000000 - str r1, [r2] - - /* invalidate I & Data TLB */ - mcr p15, 0, r0, c8, c7, 0 - CPWAIT r0 - - /* enable I cache */ - mrc p15, 0, r0, c1, c0, 0 - orr r0, r0, #MMU_Control_I - mcr p15, 0, r0, c1, c0, 0 - CPWAIT r0 - - mrs r0,cpsr /* set the cpu to SVC32 mode */ - bic r0,r0,#0x1f /* (superviser mode, M=10011) */ - orr r0,r0,#0x13 - msr cpsr,r0 - - bl _main - -/*------------------------------------------------------------------------------*/ - - .globl c_runtime_cpu_setup -c_runtime_cpu_setup: - - bx lr - -/****************************************************************************/ -/* */ -/* Interrupt handling */ -/* */ -/****************************************************************************/ - -/* IRQ stack frame */ - -#define S_FRAME_SIZE 72 - -#define S_OLD_R0 68 -#define S_PSR 64 -#define S_PC 60 -#define S_LR 56 -#define S_SP 52 - -#define S_IP 48 -#define S_FP 44 -#define S_R10 40 -#define S_R9 36 -#define S_R8 32 -#define S_R7 28 -#define S_R6 24 -#define S_R5 20 -#define S_R4 16 -#define S_R3 12 -#define S_R2 8 -#define S_R1 4 -#define S_R0 0 - -#define MODE_SVC 0x13 - - /* use bad_save_user_regs for abort/prefetch/undef/swi ... */ - - .macro bad_save_user_regs - sub sp, sp, #S_FRAME_SIZE - stmia sp, {r0 - r12} /* Calling r0-r12 */ - add r8, sp, #S_PC - - ldr r2, IRQ_STACK_START_IN - ldmia r2, {r2 - r4} /* get pc, cpsr, old_r0 */ - add r0, sp, #S_FRAME_SIZE /* restore sp_SVC */ - - add r5, sp, #S_SP - mov r1, lr - stmia r5, {r0 - r4} /* save sp_SVC, lr_SVC, pc, cpsr, old_r */ - mov r0, sp - .endm - - - /* use irq_save_user_regs / irq_restore_user_regs for */ - /* IRQ/FIQ handling */ - - .macro irq_save_user_regs - sub sp, sp, #S_FRAME_SIZE - stmia sp, {r0 - r12} /* Calling r0-r12 */ - add r8, sp, #S_PC - stmdb r8, {sp, lr}^ /* Calling SP, LR */ - str lr, [r8, #0] /* Save calling PC */ - mrs r6, spsr - str r6, [r8, #4] /* Save CPSR */ - str r0, [r8, #8] /* Save OLD_R0 */ - mov r0, sp - .endm - - .macro irq_restore_user_regs - ldmia sp, {r0 - lr}^ @ Calling r0 - lr - mov r0, r0 - ldr lr, [sp, #S_PC] @ Get PC - add sp, sp, #S_FRAME_SIZE - subs pc, lr, #4 @ return & move spsr_svc into cpsr - .endm - - .macro get_bad_stack - ldr r13, IRQ_STACK_START_IN @ setup our mode stack - - str lr, [r13] @ save caller lr / spsr - mrs lr, spsr - str lr, [r13, #4] - - mov r13, #MODE_SVC @ prepare SVC-Mode - msr spsr_c, r13 - mov lr, pc - movs pc, lr - .endm - - .macro get_irq_stack @ setup IRQ stack - ldr sp, IRQ_STACK_START - .endm - - .macro get_fiq_stack @ setup FIQ stack - ldr sp, FIQ_STACK_START - .endm - - -/****************************************************************************/ -/* */ -/* exception handlers */ -/* */ -/****************************************************************************/ - - .align 5 -undefined_instruction: - get_bad_stack - bad_save_user_regs - bl do_undefined_instruction - - .align 5 -software_interrupt: - get_bad_stack - bad_save_user_regs - bl do_software_interrupt - - .align 5 -prefetch_abort: - get_bad_stack - bad_save_user_regs - bl do_prefetch_abort - - .align 5 -data_abort: - get_bad_stack - bad_save_user_regs - bl do_data_abort - - .align 5 -not_used: - get_bad_stack - bad_save_user_regs - bl do_not_used - -#ifdef CONFIG_USE_IRQ - - .align 5 -irq: - get_irq_stack - irq_save_user_regs - bl do_irq - irq_restore_user_regs - - .align 5 -fiq: - get_fiq_stack - irq_save_user_regs /* someone ought to write a more */ - bl do_fiq /* effiction fiq_save_user_regs */ - irq_restore_user_regs - -#else - - .align 5 -irq: - get_bad_stack - bad_save_user_regs - bl do_irq - - .align 5 -fiq: - get_bad_stack - bad_save_user_regs - bl do_fiq - -#endif - -/****************************************************************************/ -/* */ -/* Reset function: Use Watchdog to reset */ -/* */ -/****************************************************************************/ - - .align 5 -.globl reset_cpu - -reset_cpu: - ldr r1, =0x482e - ldr r2, =IXP425_OSWK - str r1, [r2] - ldr r1, =0x0fff - ldr r2, =IXP425_OSWT - str r1, [r2] - ldr r1, =0x5 - ldr r2, =IXP425_OSWE - str r1, [r2] - b reset_endless - -reset_endless: - b reset_endless diff --git a/arch/arm/cpu/ixp/timer.c b/arch/arm/cpu/ixp/timer.c deleted file mode 100644 index 38e2e28..0000000 --- a/arch/arm/cpu/ixp/timer.c +++ /dev/null @@ -1,101 +0,0 @@ -/* - * (C) Copyright 2010 - * Michael Schwingen, michael@schwingen.org - * - * (C) Copyright 2006 - * Stefan Roese, DENX Software Engineering, sr@denx.de. - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH - * Marius Groeger - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH - * Alex Zuepke - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include -#include -#include -#include - -DECLARE_GLOBAL_DATA_PTR; - -/* - * The IXP42x time-stamp timer runs at 2*OSC_IN (66.666MHz when using a - * 33.333MHz crystal). - */ -static inline unsigned long long tick_to_time(unsigned long long tick) -{ - tick *= CONFIG_SYS_HZ; - do_div(tick, CONFIG_IXP425_TIMER_CLK); - return tick; -} - -static inline unsigned long long time_to_tick(unsigned long long time) -{ - time *= CONFIG_IXP425_TIMER_CLK; - do_div(time, CONFIG_SYS_HZ); - return time; -} - -static inline unsigned long long us_to_tick(unsigned long long us) -{ - us = us * CONFIG_IXP425_TIMER_CLK + 999999; - do_div(us, 1000000); - return us; -} - -unsigned long long get_ticks(void) -{ - ulong now = readl(IXP425_OSTS_B); - - if (readl(IXP425_OSST) & IXP425_OSST_TIMER_TS_PEND) { - /* rollover of timestamp timer register */ - gd->arch.timestamp += (0xFFFFFFFF - gd->arch.lastinc) + now + 1; - writel(IXP425_OSST_TIMER_TS_PEND, IXP425_OSST); - } else { - /* move stamp forward with absolut diff ticks */ - gd->arch.timestamp += (now - gd->arch.lastinc); - } - gd->arch.lastinc = now; - return gd->arch.timestamp; -} - - -void reset_timer_masked(void) -{ - /* capture current timestamp counter */ - gd->arch.lastinc = readl(IXP425_OSTS_B); - /* start "advancing" time stamp from 0 */ - gd->arch.timestamp = 0; -} - -ulong get_timer_masked(void) -{ - return tick_to_time(get_ticks()); -} - -ulong get_timer(ulong base) -{ - return get_timer_masked() - base; -} - -/* delay x useconds AND preserve advance timestamp value */ -void __udelay(unsigned long usec) -{ - unsigned long long tmp; - - tmp = get_ticks() + us_to_tick(usec); - - while (get_ticks() < tmp) - ; -} - -int timer_init(void) -{ - writel(IXP425_OSST_TIMER_TS_PEND, IXP425_OSST); - return 0; -} diff --git a/arch/arm/cpu/ixp/u-boot.lds b/arch/arm/cpu/ixp/u-boot.lds deleted file mode 100644 index 676ae2c..0000000 --- a/arch/arm/cpu/ixp/u-boot.lds +++ /dev/null @@ -1,91 +0,0 @@ -/* - * (C) Copyright 2000-2006 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -OUTPUT_FORMAT("elf32-bigarm", "elf32-bigarm", "elf32-bigarm") -OUTPUT_ARCH(arm) -ENTRY(_start) -SECTIONS -{ - . = 0x00000000; - - . = ALIGN(4); - .text : - { - *(.__image_copy_start) - arch/arm/cpu/ixp/start.o(.text*) - *(.text*) - } - - . = ALIGN(4); - .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) } - - . = ALIGN(4); - .data : { - *(.data*) - } - - . = ALIGN(4); - - . = .; - - . = ALIGN(4); - .u_boot_list : { - KEEP(*(SORT(.u_boot_list*))); - } - - . = ALIGN(4); - - .image_copy_end : - { - *(.__image_copy_end) - } - - .rel_dyn_start : - { - *(.__rel_dyn_start) - } - - .rel.dyn : { - *(.rel*) - } - - .rel_dyn_end : - { - *(.__rel_dyn_end) - } - - _end = .; - -/* - * Compiler-generated __bss_start and __bss_end, see arch/arm/lib/bss.c - * __bss_base and __bss_limit are for linker only (overlay ordering) - */ - - .bss_start __rel_dyn_start (OVERLAY) : { - KEEP(*(.__bss_start)); - __bss_base = .; - } - - .bss __bss_base (OVERLAY) : { - *(.bss*) - . = ALIGN(4); - __bss_limit = .; - } - .bss_end __bss_limit (OVERLAY) : { - KEEP(*(.__bss_end)); - } - - .dynsym _end : { *(.dynsym) } - .dynbss : { *(.dynbss) } - .dynstr : { *(.dynstr*) } - .dynamic : { *(.dynamic*) } - .hash : { *(.hash*) } - .plt : { *(.plt*) } - .interp : { *(.interp*) } - .gnu : { *(.gnu*) } - .ARM.exidx : { *(.ARM.exidx*) } -} diff --git a/arch/arm/include/asm/arch-ixp/ixp425.h b/arch/arm/include/asm/arch-ixp/ixp425.h deleted file mode 100644 index c2e9c82..0000000 --- a/arch/arm/include/asm/arch-ixp/ixp425.h +++ /dev/null @@ -1,548 +0,0 @@ -/* - * include/asm-arm/arch-ixp425/ixp425.h - * - * Register definitions for IXP425 - * - * Copyright (C) 2002 Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#ifndef _ASM_ARM_IXP425_H_ -#define _ASM_ARM_IXP425_H_ - -#define BIT(x) (1<<(x)) - -/* FIXME: Only this does work for u-boot... find out why... [RS] */ -#define UBOOT_REG_FIX 1 -#ifdef UBOOT_REG_FIX -# undef io_p2v -# undef __REG -# ifndef __ASSEMBLY__ -# define io_p2v(PhAdd) (PhAdd) -# define __REG(x) (*((volatile u32 *)io_p2v(x))) -# define __REG2(x,y) (*(volatile u32 *)((u32)&__REG(x) + (y))) -# else -# define __REG(x) (x) -# endif -#endif /* UBOOT_REG_FIX */ - -/* - * - * IXP425 Memory map: - * - * Phy Phy Size Map Size Virt Description - * ========================================================================= - * - * 0x00000000 0x10000000 SDRAM 1 - * - * 0x10000000 0x10000000 SDRAM 2 - * - * 0x20000000 0x10000000 SDRAM 3 - * - * 0x30000000 0x10000000 SDRAM 4 - * - * The above four are aliases to the same memory location (0x00000000) - * - * 0x48000000 0x4000000 PCI Memory - * - * 0x50000000 0x10000000 Not Mapped EXP BUS - * - * 0x6000000 0x00004000 0x4000 0xFFFEB000 QMgr - * - * 0xC0000000 0x100 0x1000 0xFFFDD000 PCI CFG - * - * 0xC4000000 0x100 0x1000 0xFFFDE000 EXP CFG - * - * 0xC8000000 0xC000 0xC000 0xFFFDF000 PERIPHERAL - * - * 0xCC000000 0x100 0x1000 Not Mapped SDRAM CFG - */ - -/* - * SDRAM - */ -#define IXP425_SDRAM_BASE (0x00000000) -#define IXP425_SDRAM_BASE_ALT (0x10000000) - - -/* - * PCI Configuration space - */ -#define IXP425_PCI_CFG_BASE_PHYS (0xC0000000) -#define IXP425_PCI_CFG_REGION_SIZE (0x00001000) - -/* - * Expansion BUS Configuration registers - */ -#define IXP425_EXP_CFG_BASE_PHYS (0xC4000000) -#define IXP425_EXP_CFG_REGION_SIZE (0x00001000) - -/* - * Peripheral space - */ -#define IXP425_PERIPHERAL_BASE_PHYS (0xC8000000) -#define IXP425_PERIPHERAL_REGION_SIZE (0x0000C000) - -/* - * SDRAM configuration registers - */ -#define IXP425_SDRAM_CFG_BASE_PHYS (0xCC000000) - -/* - * Q Manager space .. not static mapped - */ -#define IXP425_QMGR_BASE_PHYS (0x60000000) -#define IXP425_QMGR_REGION_SIZE (0x00004000) - -/* - * Expansion BUS - * - * Expansion Bus 'lives' at either base1 or base 2 depending on the value of - * Exp Bus config registers: - * - * Setting bit 31 of IXP425_EXP_CFG0 puts SDRAM at zero, - * and The expansion bus to IXP425_EXP_BUS_BASE2 - */ -#define IXP425_EXP_BUS_BASE1_PHYS (0x00000000) -#define IXP425_EXP_BUS_BASE2_PHYS (0x50000000) - -#define IXP425_EXP_BUS_BASE_PHYS IXP425_EXP_BUS_BASE2_PHYS - -#define IXP425_EXP_BUS_REGION_SIZE (0x08000000) -#define IXP425_EXP_BUS_CSX_REGION_SIZE (0x01000000) - -#define IXP425_EXP_BUS_CS0_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x00000000) -#define IXP425_EXP_BUS_CS1_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x01000000) -#define IXP425_EXP_BUS_CS2_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x02000000) -#define IXP425_EXP_BUS_CS3_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x03000000) -#define IXP425_EXP_BUS_CS4_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x04000000) -#define IXP425_EXP_BUS_CS5_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x05000000) -#define IXP425_EXP_BUS_CS6_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x06000000) -#define IXP425_EXP_BUS_CS7_BASE_PHYS (IXP425_EXP_BUS_BASE2_PHYS + 0x07000000) - -#define IXP425_FLASH_WRITABLE (0x2) -#define IXP425_FLASH_DEFAULT (0xbcd23c40) -#define IXP425_FLASH_WRITE (0xbcd23c42) - -#define IXP425_EXP_CS0_OFFSET 0x00 -#define IXP425_EXP_CS1_OFFSET 0x04 -#define IXP425_EXP_CS2_OFFSET 0x08 -#define IXP425_EXP_CS3_OFFSET 0x0C -#define IXP425_EXP_CS4_OFFSET 0x10 -#define IXP425_EXP_CS5_OFFSET 0x14 -#define IXP425_EXP_CS6_OFFSET 0x18 -#define IXP425_EXP_CS7_OFFSET 0x1C -#define IXP425_EXP_CFG0_OFFSET 0x20 -#define IXP425_EXP_CFG1_OFFSET 0x24 -#define IXP425_EXP_CFG2_OFFSET 0x28 -#define IXP425_EXP_CFG3_OFFSET 0x2C - -/* - * Expansion Bus Controller registers. - */ -#ifndef __ASSEMBLY__ -#define IXP425_EXP_REG(x) ((volatile u32 *)(IXP425_EXP_CFG_BASE_PHYS+(x))) -#else -#define IXP425_EXP_REG(x) (IXP425_EXP_CFG_BASE_PHYS+(x)) -#endif - -#define IXP425_EXP_CS0 IXP425_EXP_REG(IXP425_EXP_CS0_OFFSET) -#define IXP425_EXP_CS1 IXP425_EXP_REG(IXP425_EXP_CS1_OFFSET) -#define IXP425_EXP_CS2 IXP425_EXP_REG(IXP425_EXP_CS2_OFFSET) -#define IXP425_EXP_CS3 IXP425_EXP_REG(IXP425_EXP_CS3_OFFSET) -#define IXP425_EXP_CS4 IXP425_EXP_REG(IXP425_EXP_CS4_OFFSET) -#define IXP425_EXP_CS5 IXP425_EXP_REG(IXP425_EXP_CS5_OFFSET) -#define IXP425_EXP_CS6 IXP425_EXP_REG(IXP425_EXP_CS6_OFFSET) -#define IXP425_EXP_CS7 IXP425_EXP_REG(IXP425_EXP_CS7_OFFSET) - -#define IXP425_EXP_CFG0 IXP425_EXP_REG(IXP425_EXP_CFG0_OFFSET) -#define IXP425_EXP_CFG1 IXP425_EXP_REG(IXP425_EXP_CFG1_OFFSET) -#define IXP425_EXP_CFG2 IXP425_EXP_REG(IXP425_EXP_CFG2_OFFSET) -#define IXP425_EXP_CFG3 IXP425_EXP_REG(IXP425_EXP_CFG3_OFFSET) - -/* - * SDRAM Controller registers. - */ -#define IXP425_SDR_CONFIG_OFFSET 0x00 -#define IXP425_SDR_REFRESH_OFFSET 0x04 -#define IXP425_SDR_IR_OFFSET 0x08 - -#define IXP425_SDRAM_REG(x) (IXP425_SDRAM_CFG_BASE_PHYS+(x)) - -#define IXP425_SDR_CONFIG IXP425_SDRAM_REG(IXP425_SDR_CONFIG_OFFSET) -#define IXP425_SDR_REFRESH IXP425_SDRAM_REG(IXP425_SDR_REFRESH_OFFSET) -#define IXP425_SDR_IR IXP425_SDRAM_REG(IXP425_SDR_IR_OFFSET) - -/* - * UART registers - */ -#define IXP425_UART1 0 -#define IXP425_UART2 0x1000 - -#define IXP425_UART_RBR_OFFSET 0x00 -#define IXP425_UART_THR_OFFSET 0x00 -#define IXP425_UART_DLL_OFFSET 0x00 -#define IXP425_UART_IER_OFFSET 0x04 -#define IXP425_UART_DLH_OFFSET 0x04 -#define IXP425_UART_IIR_OFFSET 0x08 -#define IXP425_UART_FCR_OFFSET 0x00 -#define IXP425_UART_LCR_OFFSET 0x0c -#define IXP425_UART_MCR_OFFSET 0x10 -#define IXP425_UART_LSR_OFFSET 0x14 -#define IXP425_UART_MSR_OFFSET 0x18 -#define IXP425_UART_SPR_OFFSET 0x1c -#define IXP425_UART_ISR_OFFSET 0x20 - -#define IXP425_UART_CFG_BASE_PHYS (0xc8000000) - -#define RBR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_RBR_OFFSET) -#define THR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_THR_OFFSET) -#define DLL(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_DLL_OFFSET) -#define IER(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_IER_OFFSET) -#define DLH(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_DLH_OFFSET) -#define IIR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_IIR_OFFSET) -#define FCR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_FCR_OFFSET) -#define LCR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_LCR_OFFSET) -#define MCR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_MCR_OFFSET) -#define LSR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_LSR_OFFSET) -#define MSR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_MSR_OFFSET) -#define SPR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_SPR_OFFSET) -#define ISR(x) __REG(IXP425_UART_CFG_BASE_PHYS+(x)+IXP425_UART_ISR_OFFSET) - -#define IER_DMAE (1 << 7) /* DMA Requests Enable */ -#define IER_UUE (1 << 6) /* UART Unit Enable */ -#define IER_NRZE (1 << 5) /* NRZ coding Enable */ -#define IER_RTIOE (1 << 4) /* Receiver Time Out Interrupt Enable */ -#define IER_MIE (1 << 3) /* Modem Interrupt Enable */ -#define IER_RLSE (1 << 2) /* Receiver Line Status Interrupt Enable */ -#define IER_TIE (1 << 1) /* Transmit Data request Interrupt Enable */ -#define IER_RAVIE (1 << 0) /* Receiver Data Available Interrupt Enable */ - -#define IIR_FIFOES1 (1 << 7) /* FIFO Mode Enable Status */ -#define IIR_FIFOES0 (1 << 6) /* FIFO Mode Enable Status */ -#define IIR_TOD (1 << 3) /* Time Out Detected */ -#define IIR_IID2 (1 << 2) /* Interrupt Source Encoded */ -#define IIR_IID1 (1 << 1) /* Interrupt Source Encoded */ -#define IIR_IP (1 << 0) /* Interrupt Pending (active low) */ - -#define FCR_ITL2 (1 << 7) /* Interrupt Trigger Level */ -#define FCR_ITL1 (1 << 6) /* Interrupt Trigger Level */ -#define FCR_RESETTF (1 << 2) /* Reset Transmitter FIFO */ -#define FCR_RESETRF (1 << 1) /* Reset Receiver FIFO */ -#define FCR_TRFIFOE (1 << 0) /* Transmit and Receive FIFO Enable */ -#define FCR_ITL_1 (0) -#define FCR_ITL_8 (FCR_ITL1) -#define FCR_ITL_16 (FCR_ITL2) -#define FCR_ITL_32 (FCR_ITL2|FCR_ITL1) - -#define LCR_DLAB (1 << 7) /* Divisor Latch Access Bit */ -#define LCR_SB (1 << 6) /* Set Break */ -#define LCR_STKYP (1 << 5) /* Sticky Parity */ -#define LCR_EPS (1 << 4) /* Even Parity Select */ -#define LCR_PEN (1 << 3) /* Parity Enable */ -#define LCR_STB (1 << 2) /* Stop Bit */ -#define LCR_WLS1 (1 << 1) /* Word Length Select */ -#define LCR_WLS0 (1 << 0) /* Word Length Select */ - -#define LSR_FIFOE (1 << 7) /* FIFO Error Status */ -#define LSR_TEMT (1 << 6) /* Transmitter Empty */ -#define LSR_TDRQ (1 << 5) /* Transmit Data Request */ -#define LSR_BI (1 << 4) /* Break Interrupt */ -#define LSR_FE (1 << 3) /* Framing Error */ -#define LSR_PE (1 << 2) /* Parity Error */ -#define LSR_OE (1 << 1) /* Overrun Error */ -#define LSR_DR (1 << 0) /* Data Ready */ - -#define MCR_LOOP (1 << 4) */ -#define MCR_OUT2 (1 << 3) /* force MSR_DCD in loopback mode */ -#define MCR_OUT1 (1 << 2) /* force MSR_RI in loopback mode */ -#define MCR_RTS (1 << 1) /* Request to Send */ -#define MCR_DTR (1 << 0) /* Data Terminal Ready */ - -#define MSR_DCD (1 << 7) /* Data Carrier Detect */ -#define MSR_RI (1 << 6) /* Ring Indicator */ -#define MSR_DSR (1 << 5) /* Data Set Ready */ -#define MSR_CTS (1 << 4) /* Clear To Send */ -#define MSR_DDCD (1 << 3) /* Delta Data Carrier Detect */ -#define MSR_TERI (1 << 2) /* Trailing Edge Ring Indicator */ -#define MSR_DDSR (1 << 1) /* Delta Data Set Ready */ -#define MSR_DCTS (1 << 0) /* Delta Clear To Send */ - -#define IXP425_CONSOLE_UART_BASE_PHYS IXP425_UART1_BASE_PHYS -/* - * Peripheral Space Registers - */ -#define IXP425_UART1_BASE_PHYS (IXP425_PERIPHERAL_BASE_PHYS + 0x0000) -#define IXP425_UART2_BASE_PHYS (IXP425_PERIPHERAL_BASE_PHYS + 0x1000) -#define IXP425_PMU_BASE_PHYS (IXP425_PERIPHERAL_BASE_PHYS + 0x2000) -#define IXP425_INTC_BASE_PHYS (IXP425_PERIPHERAL_BASE_PHYS + 0x3000) -#define IXP425_GPIO_BASE_PHYS (IXP425_PERIPHERAL_BASE_PHYS + 0x4000) -#define IXP425_TIMER_BASE_PHYS (IXP425_PERIPHERAL_BASE_PHYS + 0x5000) -#define IXP425_NPEA_BASE_PHYS (IXP425_PERIPHERAL_BASE_PHYS + 0x6000) -#define IXP425_NPEB_BASE_PHYS (IXP425_PERIPHERAL_BASE_PHYS + 0x7000) -#define IXP425_NPEC_BASE_PHYS (IXP425_PERIPHERAL_BASE_PHYS + 0x8000) -#define IXP425_EthA_BASE_PHYS (IXP425_PERIPHERAL_BASE_PHYS + 0x9000) -#define IXP425_EthB_BASE_PHYS (IXP425_PERIPHERAL_BASE_PHYS + 0xA000) -#define IXP425_USB_BASE_PHYS (IXP425_PERIPHERAL_BASE_PHYS + 0xB000) - -/* - * UART Register Definitions , Offsets only as there are 2 UARTS. - * IXP425_UART1_BASE , IXP425_UART2_BASE. - */ - -#undef UART_NO_RX_INTERRUPT - -#define IXP425_UART_XTAL 14745600 - -/* - * Constants to make it easy to access Interrupt Controller registers - */ -#define IXP425_ICPR_OFFSET 0x00 /* Interrupt Status */ -#define IXP425_ICMR_OFFSET 0x04 /* Interrupt Enable */ -#define IXP425_ICLR_OFFSET 0x08 /* Interrupt IRQ/FIQ Select */ -#define IXP425_ICIP_OFFSET 0x0C /* IRQ Status */ -#define IXP425_ICFP_OFFSET 0x10 /* FIQ Status */ -#define IXP425_ICHR_OFFSET 0x14 /* Interrupt Priority */ -#define IXP425_ICIH_OFFSET 0x18 /* IRQ Highest Pri Int */ -#define IXP425_ICFH_OFFSET 0x1C /* FIQ Highest Pri Int */ - -#define N_IRQS 32 -#define IXP425_TIMER_2_IRQ 11 - -/* - * Interrupt Controller Register Definitions. - */ -#ifndef __ASSEMBLY__ -#define IXP425_INTC_REG(x) ((volatile u32 *)(IXP425_INTC_BASE_PHYS+(x))) -#else -#define IXP425_INTC_REG(x) (IXP425_INTC_BASE_PHYS+(x)) -#endif - -#define IXP425_ICPR IXP425_INTC_REG(IXP425_ICPR_OFFSET) -#define IXP425_ICMR IXP425_INTC_REG(IXP425_ICMR_OFFSET) -#define IXP425_ICLR IXP425_INTC_REG(IXP425_ICLR_OFFSET) -#define IXP425_ICIP IXP425_INTC_REG(IXP425_ICIP_OFFSET) -#define IXP425_ICFP IXP425_INTC_REG(IXP425_ICFP_OFFSET) -#define IXP425_ICHR IXP425_INTC_REG(IXP425_ICHR_OFFSET) -#define IXP425_ICIH IXP425_INTC_REG(IXP425_ICIH_OFFSET) -#define IXP425_ICFH IXP425_INTC_REG(IXP425_ICFH_OFFSET) - -/* - * Constants to make it easy to access GPIO registers - */ -#define IXP425_GPIO_GPOUTR_OFFSET 0x00 -#define IXP425_GPIO_GPOER_OFFSET 0x04 -#define IXP425_GPIO_GPINR_OFFSET 0x08 -#define IXP425_GPIO_GPISR_OFFSET 0x0C -#define IXP425_GPIO_GPIT1R_OFFSET 0x10 -#define IXP425_GPIO_GPIT2R_OFFSET 0x14 -#define IXP425_GPIO_GPCLKR_OFFSET 0x18 -#define IXP425_GPIO_GPDBSELR_OFFSET 0x1C - -/* - * GPIO Register Definitions. - * [Only perform 32bit reads/writes] - */ -#define IXP425_GPIO_REG(x) ((volatile u32 *)(IXP425_GPIO_BASE_PHYS+(x))) - -#define IXP425_GPIO_GPOUTR IXP425_GPIO_REG(IXP425_GPIO_GPOUTR_OFFSET) -#define IXP425_GPIO_GPOER IXP425_GPIO_REG(IXP425_GPIO_GPOER_OFFSET) -#define IXP425_GPIO_GPINR IXP425_GPIO_REG(IXP425_GPIO_GPINR_OFFSET) -#define IXP425_GPIO_GPISR IXP425_GPIO_REG(IXP425_GPIO_GPISR_OFFSET) -#define IXP425_GPIO_GPIT1R IXP425_GPIO_REG(IXP425_GPIO_GPIT1R_OFFSET) -#define IXP425_GPIO_GPIT2R IXP425_GPIO_REG(IXP425_GPIO_GPIT2R_OFFSET) -#define IXP425_GPIO_GPCLKR IXP425_GPIO_REG(IXP425_GPIO_GPCLKR_OFFSET) -#define IXP425_GPIO_GPDBSELR IXP425_GPIO_REG(IXP425_GPIO_GPDBSELR_OFFSET) - -#define IXP425_GPIO_GPITR(line) (((line) >= 8) ? \ - IXP425_GPIO_GPIT2R : IXP425_GPIO_GPIT1R) - -/* - * Macros to make it easy to access the GPIO registers - */ -#define GPIO_OUTPUT_ENABLE(line) *IXP425_GPIO_GPOER &= ~(1 << (line)) -#define GPIO_OUTPUT_DISABLE(line) *IXP425_GPIO_GPOER |= (1 << (line)) -#define GPIO_OUTPUT_SET(line) *IXP425_GPIO_GPOUTR |= (1 << (line)) -#define GPIO_OUTPUT_CLEAR(line) *IXP425_GPIO_GPOUTR &= ~(1 << (line)) -#define GPIO_INT_ACT_LOW_SET(line) \ - *IXP425_GPIO_GPITR(line) = \ - (*IXP425_GPIO_GPITR(line) & \ - ~(0x7 << (((line) & 0x7) * 3))) | \ - (0x1 << (((line) & 0x7) * 3)) \ - -/* - * Constants to make it easy to access Timer Control/Status registers - */ -#define IXP425_OSTS_OFFSET 0x00 /* Continious TimeStamp */ -#define IXP425_OST1_OFFSET 0x04 /* Timer 1 Timestamp */ -#define IXP425_OSRT1_OFFSET 0x08 /* Timer 1 Reload */ -#define IXP425_OST2_OFFSET 0x0C /* Timer 2 Timestamp */ -#define IXP425_OSRT2_OFFSET 0x10 /* Timer 2 Reload */ -#define IXP425_OSWT_OFFSET 0x14 /* Watchdog Timer */ -#define IXP425_OSWE_OFFSET 0x18 /* Watchdog Enable */ -#define IXP425_OSWK_OFFSET 0x1C /* Watchdog Key */ -#define IXP425_OSST_OFFSET 0x20 /* Timer Status */ - -/* - * Operating System Timer Register Definitions. - */ - -#ifndef __ASSEMBLY__ -#define IXP425_TIMER_REG(x) ((volatile u32 *)(IXP425_TIMER_BASE_PHYS+(x))) -#else -#define IXP425_TIMER_REG(x) (IXP425_TIMER_BASE_PHYS+(x)) -#endif - -/* _B to avoid collision: also defined in npe/include/... */ -#define IXP425_OSTS_B IXP425_TIMER_REG(IXP425_OSTS_OFFSET) -#define IXP425_OST1 IXP425_TIMER_REG(IXP425_OST1_OFFSET) -#define IXP425_OSRT1 IXP425_TIMER_REG(IXP425_OSRT1_OFFSET) -#define IXP425_OST2 IXP425_TIMER_REG(IXP425_OST2_OFFSET) -#define IXP425_OSRT2 IXP425_TIMER_REG(IXP425_OSRT2_OFFSET) -#define IXP425_OSWT IXP425_TIMER_REG(IXP425_OSWT_OFFSET) -#define IXP425_OSWE IXP425_TIMER_REG(IXP425_OSWE_OFFSET) -#define IXP425_OSWK IXP425_TIMER_REG(IXP425_OSWK_OFFSET) -#define IXP425_OSST IXP425_TIMER_REG(IXP425_OSST_OFFSET) - -/* - * Timer register values and bit definitions - */ -#define IXP425_OST_ENABLE BIT(0) -#define IXP425_OST_ONE_SHOT BIT(1) -/* Low order bits of reload value ignored */ -#define IXP425_OST_RELOAD_MASK (0x3) -#define IXP425_OST_DISABLED (0x0) -#define IXP425_OSST_TIMER_1_PEND BIT(0) -#define IXP425_OSST_TIMER_2_PEND BIT(1) -#define IXP425_OSST_TIMER_TS_PEND BIT(2) -#define IXP425_OSST_TIMER_WDOG_PEND BIT(3) -#define IXP425_OSST_TIMER_WARM_RESET BIT(4) - -/* - * Constants to make it easy to access PCI Control/Status registers - */ -#define PCI_NP_AD_OFFSET 0x00 -#define PCI_NP_CBE_OFFSET 0x04 -#define PCI_NP_WDATA_OFFSET 0x08 -#define PCI_NP_RDATA_OFFSET 0x0c -#define PCI_CRP_AD_CBE_OFFSET 0x10 -#define PCI_CRP_WDATA_OFFSET 0x14 -#define PCI_CRP_RDATA_OFFSET 0x18 -#define PCI_CSR_OFFSET 0x1c -#define PCI_ISR_OFFSET 0x20 -#define PCI_INTEN_OFFSET 0x24 -#define PCI_DMACTRL_OFFSET 0x28 -#define PCI_AHBMEMBASE_OFFSET 0x2c -#define PCI_AHBIOBASE_OFFSET 0x30 -#define PCI_PCIMEMBASE_OFFSET 0x34 -#define PCI_AHBDOORBELL_OFFSET 0x38 -#define PCI_PCIDOORBELL_OFFSET 0x3C -#define PCI_ATPDMA0_AHBADDR_OFFSET 0x40 -#define PCI_ATPDMA0_PCIADDR_OFFSET 0x44 -#define PCI_ATPDMA0_LENADDR_OFFSET 0x48 -#define PCI_ATPDMA1_AHBADDR_OFFSET 0x4C -#define PCI_ATPDMA1_PCIADDR_OFFSET 0x50 -#define PCI_ATPDMA1_LENADDR_OFFSET 0x54 - -/* - * PCI Control/Status Registers - */ -#define IXP425_PCI_CSR(x) ((volatile u32 *)(IXP425_PCI_CFG_BASE_PHYS+(x))) - -#define PCI_NP_AD IXP425_PCI_CSR(PCI_NP_AD_OFFSET) -#define PCI_NP_CBE IXP425_PCI_CSR(PCI_NP_CBE_OFFSET) -#define PCI_NP_WDATA IXP425_PCI_CSR(PCI_NP_WDATA_OFFSET) -#define PCI_NP_RDATA IXP425_PCI_CSR(PCI_NP_RDATA_OFFSET) -#define PCI_CRP_AD_CBE IXP425_PCI_CSR(PCI_CRP_AD_CBE_OFFSET) -#define PCI_CRP_WDATA IXP425_PCI_CSR(PCI_CRP_WDATA_OFFSET) -#define PCI_CRP_RDATA IXP425_PCI_CSR(PCI_CRP_RDATA_OFFSET) -#define PCI_CSR IXP425_PCI_CSR(PCI_CSR_OFFSET) -#define PCI_ISR IXP425_PCI_CSR(PCI_ISR_OFFSET) -#define PCI_INTEN IXP425_PCI_CSR(PCI_INTEN_OFFSET) -#define PCI_DMACTRL IXP425_PCI_CSR(PCI_DMACTRL_OFFSET) -#define PCI_AHBMEMBASE IXP425_PCI_CSR(PCI_AHBMEMBASE_OFFSET) -#define PCI_AHBIOBASE IXP425_PCI_CSR(PCI_AHBIOBASE_OFFSET) -#define PCI_PCIMEMBASE IXP425_PCI_CSR(PCI_PCIMEMBASE_OFFSET) -#define PCI_AHBDOORBELL IXP425_PCI_CSR(PCI_AHBDOORBELL_OFFSET) -#define PCI_PCIDOORBELL IXP425_PCI_CSR(PCI_PCIDOORBELL_OFFSET) -#define PCI_ATPDMA0_AHBADDR IXP425_PCI_CSR(PCI_ATPDMA0_AHBADDR_OFFSET) -#define PCI_ATPDMA0_PCIADDR IXP425_PCI_CSR(PCI_ATPDMA0_PCIADDR_OFFSET) -#define PCI_ATPDMA0_LENADDR IXP425_PCI_CSR(PCI_ATPDMA0_LENADDR_OFFSET) -#define PCI_ATPDMA1_AHBADDR IXP425_PCI_CSR(PCI_ATPDMA1_AHBADDR_OFFSET) -#define PCI_ATPDMA1_PCIADDR IXP425_PCI_CSR(PCI_ATPDMA1_PCIADDR_OFFSET) -#define PCI_ATPDMA1_LENADDR IXP425_PCI_CSR(PCI_ATPDMA1_LENADDR_OFFSET) - -/* - * PCI register values and bit definitions - */ - -/* CSR bit definitions */ -#define PCI_CSR_HOST BIT(0) -#define PCI_CSR_ARBEN BIT(1) -#define PCI_CSR_ADS BIT(2) -#define PCI_CSR_PDS BIT(3) -#define PCI_CSR_ABE BIT(4) -#define PCI_CSR_DBT BIT(5) -#define PCI_CSR_ASE BIT(8) -#define PCI_CSR_IC BIT(15) - -/* ISR (Interrupt status) Register bit definitions */ -#define PCI_ISR_PSE BIT(0) -#define PCI_ISR_PFE BIT(1) -#define PCI_ISR_PPE BIT(2) -#define PCI_ISR_AHBE BIT(3) -#define PCI_ISR_APDC BIT(4) -#define PCI_ISR_PADC BIT(5) -#define PCI_ISR_ADB BIT(6) -#define PCI_ISR_PDB BIT(7) - -/* INTEN (Interrupt Enable) Register bit definitions */ -#define PCI_INTEN_PSE BIT(0) -#define PCI_INTEN_PFE BIT(1) -#define PCI_INTEN_PPE BIT(2) -#define PCI_INTEN_AHBE BIT(3) -#define PCI_INTEN_APDC BIT(4) -#define PCI_INTEN_PADC BIT(5) -#define PCI_INTEN_ADB BIT(6) -#define PCI_INTEN_PDB BIT(7) - -/* - * Shift value for byte enable on NP cmd/byte enable register - */ -#define IXP425_PCI_NP_CBE_BESL 4 - -/* - * PCI commands supported by NP access unit - */ -#define NP_CMD_IOREAD 0x2 -#define NP_CMD_IOWRITE 0x3 -#define NP_CMD_CONFIGREAD 0xa -#define NP_CMD_CONFIGWRITE 0xb -#define NP_CMD_MEMREAD 0x6 -#define NP_CMD_MEMWRITE 0x7 - -#if 0 -#ifndef __ASSEMBLY__ -extern int ixp425_pci_read(u32 addr, u32 cmd, u32* data); -extern int ixp425_pci_write(u32 addr, u32 cmd, u32 data); -extern void ixp425_pci_init(void *); -#endif -#endif - -/* - * Constants for CRP access into local config space - */ -#define CRP_AD_CBE_BESL 20 -#define CRP_AD_CBE_WRITE BIT(16) - -/* - * Clock Speed Definitions. - */ -#define IXP425_PERIPHERAL_BUS_CLOCK (66) /* 66Mhzi APB BUS */ - - -#endif diff --git a/arch/arm/include/asm/arch-ixp/ixp425pci.h b/arch/arm/include/asm/arch-ixp/ixp425pci.h deleted file mode 100644 index f499883..0000000 --- a/arch/arm/include/asm/arch-ixp/ixp425pci.h +++ /dev/null @@ -1,174 +0,0 @@ -/* - * IXP PCI Init - * (C) Copyright 2004 eslab.whut.edu.cn - * Yue Hu(huyue_whut@yahoo.com.cn), Ligong Xue(lgxue@hotmail.com) - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#ifndef _IXP425PCI_H -#define _IXP425PCI_H - -#define OK 0 -#define ERROR -1 - -struct pci_controller; -extern void pci_ixp_init(struct pci_controller *hose); - -/* Mask definitions*/ -#define IXP425_PCI_BOTTOM_NIBBLE_OF_LONG_MASK 0x0000000f - -#define PCI_NP_CBE_BESL (4) -#define PCI_NP_AD_FUNCSL (8) - -/*Register addressing definitions for PCI controller configuration - and status registers*/ - -#define PCI_CSR_BASE (0xC0000000) -/* -#define PCI_NP_AD_OFFSET (0x00) -#define PCI_NP_CBE_OFFSET (0x04) -#define PCI_NP_WDATA_OFFSET (0x08) -#define PCI_NP_RDATA_OFFSET (0x0C) -#define PCI_CRP_OFFSET (0x10) -#define PCI_CRP_WDATA_OFFSET (0x14) -#define PCI_CRP_RDATA_OFFSET (0x18) -#define PCI_CSR_OFFSET (0x1C) -#define PCI_ISR_OFFSET (0x20) -#define PCI_INTEN_OFFSET (0x24) -#define PCI_DMACTRL_OFFSET (0x28) -#define PCI_AHBMEMBASE_OFFSET (0x2C) -#define PCI_AHBIOBASE_OFFSET (0x30) -#define PCI_PCIMEMBASE_OFFSET (0x34) -#define PCI_AHBDOORBELL_OFFSET (0x38) -#define PCI_PCIDOORBELL_OFFSET (0x3C) -#define PCI_ATPDMA0_AHBADDR (0x40) -#define PCI_ATPDMA0_PCIADDR (0x44) -#define PCI_ATPDMA0_LENADDR (0x48) -#define PCI_ATPDMA1_AHBADDR (0x4C) -#define PCI_ATPDMA1_PCIADDR (0x50) -#define PCI_ATPDMA1_LENADDR (0x54) -#define PCI_PTADMA0_AHBADDR (0x58) -#define PCI_PTADMA0_PCIADDR (0x5C) -#define PCI_PTADMA0_LENADDR (0x60) -#define PCI_PTADMA1_AHBADDR (0x64) -#define PCI_PTADMA1_PCIADDR (0x68) -#define PCI_PTADMA1_LENADDR (0x6C) -*/ -/*Non prefetch registers bit definitions*/ -/* -#define NP_CMD_INTACK (0x0) -#define NP_CMD_SPECIAL (0x1) -#define NP_CMD_IOREAD (0x2) -#define NP_CMD_IOWRITE (0x3) -#define NP_CMD_MEMREAD (0x6) -#define NP_CMD_MEMWRITE (0x7) -#define NP_CMD_CONFIGREAD (0xa) -#define NP_CMD_CONFIGWRITE (0xb) -*/ - -/*Configuration Port register bit definitions*/ -#define PCI_CRP_WRITE BIT(16) - -/*ISR (Interrupt status) Register bit definitions*/ -#define PCI_ISR_PSE BIT(0) -#define PCI_ISR_PFE BIT(1) -#define PCI_ISR_PPE BIT(2) -#define PCI_ISR_AHBE BIT(3) -#define PCI_ISR_APDC BIT(4) -#define PCI_ISR_PADC BIT(5) -#define PCI_ISR_ADB BIT(6) -#define PCI_ISR_PDB BIT(7) - -/*INTEN (Interrupt Enable) Register bit definitions*/ -#define PCI_INTEN_PSE BIT(0) -#define PCI_INTEN_PFE BIT(1) -#define PCI_INTEN_PPE BIT(2) -#define PCI_INTEN_AHBE BIT(3) -#define PCI_INTEN_APDC BIT(4) -#define PCI_INTEN_PADC BIT(5) -#define PCI_INTEN_ADB BIT(6) -#define PCI_INTEN_PDB BIT(7) - -/*PCI configuration regs.*/ - -#define PCI_CFG_VENDOR_ID 0x00 -#define PCI_CFG_DEVICE_ID 0x02 -#define PCI_CFG_COMMAND 0x04 -#define PCI_CFG_STATUS 0x06 -#define PCI_CFG_REVISION 0x08 -#define PCI_CFG_PROGRAMMING_IF 0x09 -#define PCI_CFG_SUBCLASS 0x0a -#define PCI_CFG_CLASS 0x0b -#define PCI_CFG_CACHE_LINE_SIZE 0x0c -#define PCI_CFG_LATENCY_TIMER 0x0d -#define PCI_CFG_HEADER_TYPE 0x0e -#define PCI_CFG_BIST 0x0f -#define PCI_CFG_BASE_ADDRESS_0 0x10 -#define PCI_CFG_BASE_ADDRESS_1 0x14 -#define PCI_CFG_BASE_ADDRESS_2 0x18 -#define PCI_CFG_BASE_ADDRESS_3 0x1c -#define PCI_CFG_BASE_ADDRESS_4 0x20 -#define PCI_CFG_BASE_ADDRESS_5 0x24 -#define PCI_CFG_CIS 0x28 -#define PCI_CFG_SUB_VENDOR_ID 0x2c -#define PCI_CFG_SUB_SYSTEM_ID 0x2e -#define PCI_CFG_EXPANSION_ROM 0x30 -#define PCI_CFG_RESERVED_0 0x34 -#define PCI_CFG_RESERVED_1 0x38 -#define PCI_CFG_DEV_INT_LINE 0x3c -#define PCI_CFG_DEV_INT_PIN 0x3d -#define PCI_CFG_MIN_GRANT 0x3e -#define PCI_CFG_MAX_LATENCY 0x3f -#define PCI_CFG_SPECIAL_USE 0x41 -#define PCI_CFG_MODE 0x43 - -#define PCI_CMD_IO_ENABLE 0x0001 /* IO access enable */ -#define PCI_CMD_MEM_ENABLE 0x0002 /* memory access enable */ -#define PCI_CMD_MASTER_ENABLE 0x0004 /* bus master enable */ -#define PCI_CMD_MON_ENABLE 0x0008 /* monitor special cycles enable */ -#define PCI_CMD_WI_ENABLE 0x0010 /* write and invalidate enable */ -#define PCI_CMD_SNOOP_ENABLE 0x0020 /* palette snoop enable */ -#define PCI_CMD_PERR_ENABLE 0x0040 /* parity error enable */ -#define PCI_CMD_WC_ENABLE 0x0080 /* wait cycle enable */ -#define PCI_CMD_SERR_ENABLE 0x0100 /* system error enable */ -#define PCI_CMD_FBTB_ENABLE 0x0200 /* fast back to back enable */ - - -/*CSR Register bit definitions*/ -#define PCI_CSR_HOST BIT(0) -#define PCI_CSR_ARBEN BIT(1) -#define PCI_CSR_ADS BIT(2) -#define PCI_CSR_PDS BIT(3) -#define PCI_CSR_ABE BIT(4) -#define PCI_CSR_DBT BIT(5) -#define PCI_CSR_ASE BIT(8) -#define PCI_CSR_IC BIT(15) - -/*Configuration command bit definitions*/ -#define PCI_CFG_CMD_IOAE BIT(0) -#define PCI_CFG_CMD_MAE BIT(1) -#define PCI_CFG_CMD_BME BIT(2) -#define PCI_CFG_CMD_MWIE BIT(4) -#define PCI_CFG_CMD_SER BIT(8) -#define PCI_CFG_CMD_FBBE BIT(9) -#define PCI_CFG_CMD_MDPE BIT(24) -#define PCI_CFG_CMD_STA BIT(27) -#define PCI_CFG_CMD_RTA BIT(28) -#define PCI_CFG_CMD_RMA BIT(29) -#define PCI_CFG_CMD_SSE BIT(30) -#define PCI_CFG_CMD_DPE BIT(31) - -/*DMACTRL DMA Control and status Register*/ -#define PCI_DMACTRL_APDCEN BIT(0) -#define PCI_DMACTRL_APDC0 BIT(4) -#define PCI_DMACTRL_APDE0 BIT(5) -#define PCI_DMACTRL_APDC1 BIT(6) -#define PCI_DMACTRL_APDE1 BIT(7) -#define PCI_DMACTRL_PADCEN BIT(8) -#define PCI_DMACTRL_PADC0 BIT(12) -#define PCI_DMACTRL_PADE0 BIT(13) -#define PCI_DMACTRL_PADC1 BIT(14) -#define PCI_DMACTRL_PADE1 BIT(15) - -#endif diff --git a/arch/arm/include/asm/global_data.h b/arch/arm/include/asm/global_data.h index 60e8726..63e4ad5 100644 --- a/arch/arm/include/asm/global_data.h +++ b/arch/arm/include/asm/global_data.h @@ -32,9 +32,6 @@ struct arch_global_data { unsigned long tbl; unsigned long lastinc; unsigned long long timer_reset_value; -#ifdef CONFIG_IXP425 - unsigned long timestamp; -#endif #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) unsigned long tlb_addr; unsigned long tlb_size; -- cgit v1.1 From 5c92edc21c3e12873cd3de5ed73d85d48b8828ac Mon Sep 17 00:00:00 2001 From: Anson Huang Date: Thu, 23 Jan 2014 14:00:18 +0800 Subject: imx6: ensure AHB clock is 132MHz in low freq boot mode For low freq boot mode(ARM boot up with 396MHz), ROM will not set AHB clock to 132MHz, and the reset value of AHB divider is incorrect which will lead to wrong AHB rate, need to correct it. To enable low freq boot mode, need to set BOOT_CFG2[2] to high, tested on i.MX6Q/DL SabreSD board and i.MX6SL EVK board. Reviewed-by: Fabio Estevam Signed-off-by: Anson Huang --- arch/arm/cpu/armv7/mx6/soc.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index 0208cba..33a2939 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -177,10 +177,30 @@ static void imx_set_wdog_powerdown(bool enable) writew(enable, &wdog2->wmcr); } +static void set_ahb_rate(u32 val) +{ + struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; + u32 reg, div; + + div = get_periph_clk() / val - 1; + reg = readl(&mxc_ccm->cbcdr); + + writel((reg & (~MXC_CCM_CBCDR_AHB_PODF_MASK)) | + (div << MXC_CCM_CBCDR_AHB_PODF_OFFSET), &mxc_ccm->cbcdr); +} + int arch_cpu_init(void) { init_aips(); + /* + * When low freq boot is enabled, ROM will not set AHB + * freq, so we need to ensure AHB freq is 132MHz in such + * scenario. + */ + if (mxc_get_clock(MXC_ARM_CLK) == 396000000) + set_ahb_rate(132000000); + imx_set_wdog_powerdown(false); /* Disable PDE bit of WMCR register */ #ifdef CONFIG_APBH_DMA -- cgit v1.1 From 16197bb8ba5962ab3a9c065c06c91c8c288c0f8e Mon Sep 17 00:00:00 2001 From: Anson Huang Date: Thu, 23 Jan 2014 14:00:19 +0800 Subject: imx6: make sure MMDC_CHx_MASK is clear to avoid warm reset failure Boot ROM may mask MMDC_CHx_MASK in CCM_CCDR(such as i.MX6SL TO1.2), it will cause warm reset fail, need to clear this MMDC_CHx_MASK field to make sure all the i.MX6 series SOCs reset function work. Otherwise, uboot "reset" command will fail, tested on i.MX6SL EVK board with TO1.2. Signed-off-by: Anson Huang --- arch/arm/cpu/armv7/mx6/soc.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index 33a2939..2aad0a1 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -189,10 +189,21 @@ static void set_ahb_rate(u32 val) (div << MXC_CCM_CBCDR_AHB_PODF_OFFSET), &mxc_ccm->cbcdr); } +static void clear_mmdc_ch_mask(void) +{ + struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; + + /* Clear MMDC channel mask */ + writel(0, &mxc_ccm->ccdr); +} + int arch_cpu_init(void) { init_aips(); + /* Need to clear MMDC_CHx_MASK to make warm reset work. */ + clear_mmdc_ch_mask(); + /* * When low freq boot is enabled, ROM will not set AHB * freq, so we need to ensure AHB freq is 132MHz in such -- cgit v1.1 From 6a99f03d696ee51e584a9c95b9fb065ebf0d46b4 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sun, 26 Jan 2014 15:06:40 -0200 Subject: imx: Introduce a header for the imx cpu versions Instead of duplicating the CPU definitions at mx5 and mx6 sys_proto.h header files, introduce a common header to centralize such definitions. Signed-off-by: Fabio Estevam --- arch/arm/include/asm/arch-imx/cpu.h | 12 ++++++++++++ arch/arm/include/asm/arch-mx5/sys_proto.h | 7 +------ arch/arm/include/asm/arch-mx6/sys_proto.h | 8 +------- 3 files changed, 14 insertions(+), 13 deletions(-) create mode 100644 arch/arm/include/asm/arch-imx/cpu.h (limited to 'arch/arm') diff --git a/arch/arm/include/asm/arch-imx/cpu.h b/arch/arm/include/asm/arch-imx/cpu.h new file mode 100644 index 0000000..8c725e2 --- /dev/null +++ b/arch/arm/include/asm/arch-imx/cpu.h @@ -0,0 +1,12 @@ +/* + * (C) Copyright 2014 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#define MXC_CPU_MX51 0x51 +#define MXC_CPU_MX53 0x53 +#define MXC_CPU_MX6SL 0x60 +#define MXC_CPU_MX6DL 0x61 +#define MXC_CPU_MX6SOLO 0x62 +#define MXC_CPU_MX6Q 0x63 diff --git a/arch/arm/include/asm/arch-mx5/sys_proto.h b/arch/arm/include/asm/arch-mx5/sys_proto.h index 9949ad1..ac7705b 100644 --- a/arch/arm/include/asm/arch-mx5/sys_proto.h +++ b/arch/arm/include/asm/arch-mx5/sys_proto.h @@ -8,12 +8,7 @@ #ifndef _SYS_PROTO_H_ #define _SYS_PROTO_H_ -#define MXC_CPU_MX51 0x51 -#define MXC_CPU_MX53 0x53 -#define MXC_CPU_MX6SL 0x60 -#define MXC_CPU_MX6DL 0x61 -#define MXC_CPU_MX6SOLO 0x62 -#define MXC_CPU_MX6Q 0x63 +#include "../arch-imx/cpu.h" #define is_soc_rev(rev) ((get_cpu_rev() & 0xFF) - rev) u32 get_cpu_rev(void); diff --git a/arch/arm/include/asm/arch-mx6/sys_proto.h b/arch/arm/include/asm/arch-mx6/sys_proto.h index 17125a6..38851a1 100644 --- a/arch/arm/include/asm/arch-mx6/sys_proto.h +++ b/arch/arm/include/asm/arch-mx6/sys_proto.h @@ -9,13 +9,7 @@ #define _SYS_PROTO_H_ #include - -#define MXC_CPU_MX51 0x51 -#define MXC_CPU_MX53 0x53 -#define MXC_CPU_MX6SL 0x60 -#define MXC_CPU_MX6DL 0x61 -#define MXC_CPU_MX6SOLO 0x62 -#define MXC_CPU_MX6Q 0x63 +#include "../arch-imx/cpu.h" #define is_soc_rev(rev) ((get_cpu_rev() & 0xFF) - rev) u32 get_cpu_rev(void); -- cgit v1.1 From 94db66557997a929313e0f5020c83368b1c6627f Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sun, 26 Jan 2014 15:06:41 -0200 Subject: mx6: Distinguish mx6dual from mx6quad Currently when we boot a mx6dual U-boot reports that it is a mx6quad. Report it as MX6D instead: CPU: Freescale i.MX6D rev1.2 at 792 MHz Signed-off-by: Fabio Estevam Acked-by: Stefano babic Acked-by: Otavio Salvador --- arch/arm/cpu/armv7/mx6/soc.c | 14 +++++++++++--- arch/arm/imx-common/cpu.c | 2 ++ arch/arm/include/asm/arch-imx/cpu.h | 1 + 3 files changed, 14 insertions(+), 3 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index 2aad0a1..4c5c367 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -41,14 +41,19 @@ u32 get_cpu_rev(void) if (type != MXC_CPU_MX6SL) { reg = readl(&anatop->digprog); + struct scu_regs *scu = (struct scu_regs *)SCU_BASE_ADDR; + u32 cfg = readl(&scu->config) & 3; type = ((reg >> 16) & 0xff); if (type == MXC_CPU_MX6DL) { - struct scu_regs *scu = (struct scu_regs *)SCU_BASE_ADDR; - u32 cfg = readl(&scu->config) & 3; - if (!cfg) type = MXC_CPU_MX6SOLO; } + + if (type == MXC_CPU_MX6Q) { + if (cfg == 1) + type = MXC_CPU_MX6D; + } + } reg &= 0xff; /* mx6 silicon revision */ return (type << 12) | (reg + 0x10); @@ -62,6 +67,9 @@ u32 __weak get_board_rev(void) if (type == MXC_CPU_MX6SOLO) cpurev = (MXC_CPU_MX6DL) << 12 | (cpurev & 0xFFF); + if (type == MXC_CPU_MX6D) + cpurev = (MXC_CPU_MX6Q) << 12 | (cpurev & 0xFFF); + return cpurev; } #endif diff --git a/arch/arm/imx-common/cpu.c b/arch/arm/imx-common/cpu.c index 9231649..a77c4de 100644 --- a/arch/arm/imx-common/cpu.c +++ b/arch/arm/imx-common/cpu.c @@ -106,6 +106,8 @@ const char *get_imx_type(u32 imxtype) switch (imxtype) { case MXC_CPU_MX6Q: return "6Q"; /* Quad-core version of the mx6 */ + case MXC_CPU_MX6D: + return "6D"; /* Dual-core version of the mx6 */ case MXC_CPU_MX6DL: return "6DL"; /* Dual Lite version of the mx6 */ case MXC_CPU_MX6SOLO: diff --git a/arch/arm/include/asm/arch-imx/cpu.h b/arch/arm/include/asm/arch-imx/cpu.h index 8c725e2..a35940e 100644 --- a/arch/arm/include/asm/arch-imx/cpu.h +++ b/arch/arm/include/asm/arch-imx/cpu.h @@ -10,3 +10,4 @@ #define MXC_CPU_MX6DL 0x61 #define MXC_CPU_MX6SOLO 0x62 #define MXC_CPU_MX6Q 0x63 +#define MXC_CPU_MX6D 0x64 -- cgit v1.1 From 6d73c23410cd0f8a54227dd0361fb8b9eadcb4b2 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 29 Jan 2014 17:39:49 -0200 Subject: mx6: Enable L2 cache support Add L2 cache support and enable it by default. Configure the L2 cache in the same way as done by FSL kernel: http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/tree/arch/arm/mach-mx6/mm.c?h=imx_3.0.35_4.1.0 Signed-off-by: Fabio Estevam Acked-by: Dirk Behme Acked-by: Stefano Babic --- arch/arm/cpu/armv7/mx6/soc.c | 58 ++++++++++++++++++++++++++++++++ arch/arm/include/asm/arch-mx6/imx-regs.h | 1 + arch/arm/include/asm/pl310.h | 21 ++++++++++++ 3 files changed, 80 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index 4c5c367..1725279 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -8,6 +8,8 @@ */ #include +#include +#include #include #include #include @@ -375,3 +377,59 @@ void imx_setup_hdmi(void) writel(reg, &mxc_ccm->chsccdr); } #endif + +#ifndef CONFIG_SYS_L2CACHE_OFF +#define IOMUXC_GPR11_L2CACHE_AS_OCRAM 0x00000002 +void v7_outer_cache_enable(void) +{ + struct pl310_regs *const pl310 = (struct pl310_regs *)L2_PL310_BASE; + unsigned int val; + +#if defined CONFIG_MX6SL + struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR; + val = readl(&iomux->gpr[11]); + if (val & IOMUXC_GPR11_L2CACHE_AS_OCRAM) { + /* L2 cache configured as OCRAM, reset it */ + val &= ~IOMUXC_GPR11_L2CACHE_AS_OCRAM; + writel(val, &iomux->gpr[11]); + } +#endif + + writel(0x132, &pl310->pl310_tag_latency_ctrl); + writel(0x132, &pl310->pl310_data_latency_ctrl); + + val = readl(&pl310->pl310_prefetch_ctrl); + + /* Turn on the L2 I/D prefetch */ + val |= 0x30000000; + + /* + * The L2 cache controller(PL310) version on the i.MX6D/Q is r3p1-50rel0 + * The L2 cache controller(PL310) version on the i.MX6DL/SOLO/SL is r3p2 + * But according to ARM PL310 errata: 752271 + * ID: 752271: Double linefill feature can cause data corruption + * Fault Status: Present in: r3p0, r3p1, r3p1-50rel0. Fixed in r3p2 + * Workaround: The only workaround to this erratum is to disable the + * double linefill feature. This is the default behavior. + */ + +#ifndef CONFIG_MX6Q + val |= 0x40800000; +#endif + writel(val, &pl310->pl310_prefetch_ctrl); + + val = readl(&pl310->pl310_power_ctrl); + val |= L2X0_DYNAMIC_CLK_GATING_EN; + val |= L2X0_STNDBY_MODE_EN; + writel(val, &pl310->pl310_power_ctrl); + + setbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN); +} + +void v7_outer_cache_disable(void) +{ + struct pl310_regs *const pl310 = (struct pl310_regs *)L2_PL310_BASE; + + clrbits_le32(&pl310->pl310_ctrl, L2X0_CTRL_EN); +} +#endif /* !CONFIG_SYS_L2CACHE_OFF */ diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h b/arch/arm/include/asm/arch-mx6/imx-regs.h index f2ad6e9..c2d210a 100644 --- a/arch/arm/include/asm/arch-mx6/imx-regs.h +++ b/arch/arm/include/asm/arch-mx6/imx-regs.h @@ -53,6 +53,7 @@ #define GLOBAL_TIMER_BASE_ADDR 0x00A00200 #define PRIVATE_TIMERS_WD_BASE_ADDR 0x00A00600 #define IC_DISTRIBUTOR_BASE_ADDR 0x00A01000 +#define L2_PL310_BASE 0x00A02000 #define GPV0_BASE_ADDR 0x00B00000 #define GPV1_BASE_ADDR 0x00C00000 #define PCIE_ARB_BASE_ADDR 0x01000000 diff --git a/arch/arm/include/asm/pl310.h b/arch/arm/include/asm/pl310.h index f41ad8c..ddc245b 100644 --- a/arch/arm/include/asm/pl310.h +++ b/arch/arm/include/asm/pl310.h @@ -12,6 +12,9 @@ /* Register bit fields */ #define PL310_AUX_CTRL_ASSOCIATIVITY_MASK (1 << 16) +#define L2X0_DYNAMIC_CLK_GATING_EN (1 << 1) +#define L2X0_STNDBY_MODE_EN (1 << 0) +#define L2X0_CTRL_EN 1 struct pl310_regs { u32 pl310_cache_id; @@ -47,6 +50,24 @@ struct pl310_regs { u32 pad9[1]; u32 pl310_clean_inv_line_idx; u32 pl310_clean_inv_way; + u32 pad10[64]; + u32 pl310_lockdown_dbase; + u32 pl310_lockdown_ibase; + u32 pad11[190]; + u32 pl310_addr_filter_start; + u32 pl310_addr_filter_end; + u32 pad12[190]; + u32 pl310_test_operation; + u32 pad13[3]; + u32 pl310_line_data; + u32 pad14[7]; + u32 pl310_line_tag; + u32 pad15[3]; + u32 pl310_debug_ctrl; + u32 pad16[7]; + u32 pl310_prefetch_ctrl; + u32 pad17[7]; + u32 pl310_power_ctrl; }; void pl310_inval_all(void); -- cgit v1.1 From adadc915b31c4d55561c2703849f92cddfa8ad24 Mon Sep 17 00:00:00 2001 From: Markus Niebel Date: Wed, 5 Feb 2014 10:51:25 +0100 Subject: ARM: imx6: fix wrong fec clk imx_get_fecclk() returns enet_ref instead of ipg. Since the clock is used to calculate the prescaler for the MDIO interface wrong values can be calculated. Tested on a custom MX6S board with 100MBit interface Signed-off-by: Markus Niebel --- arch/arm/cpu/armv7/mx6/clock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index 61f71cf..bd65a08 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -409,7 +409,7 @@ u32 imx_get_uartclk(void) u32 imx_get_fecclk(void) { - return decode_pll(PLL_ENET, MXC_HCLK); + return mxc_get_clock(MXC_IPG_CLK); } static int enable_enet_pll(uint32_t en) -- cgit v1.1 From 673ba27a8560b0aea993109d5c490446a50cb331 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Fri, 3 Jan 2014 09:32:35 +0100 Subject: zynq: Enable dcache support Enable dcache. Signed-off-by: Michal Simek --- arch/arm/cpu/armv7/zynq/cpu.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/zynq/cpu.c b/arch/arm/cpu/armv7/zynq/cpu.c index 9af340e..c771759 100644 --- a/arch/arm/cpu/armv7/zynq/cpu.c +++ b/arch/arm/cpu/armv7/zynq/cpu.c @@ -46,3 +46,11 @@ void reset_cpu(ulong addr) while (1) ; } + +#ifndef CONFIG_SYS_DCACHE_OFF +void enable_caches(void) +{ + /* Enable D-cache. I-cache is already enabled in start.S */ + dcache_enable(); +} +#endif -- cgit v1.1 From 627981213ad1693591a03614d35ccdc060aa5935 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Thu, 16 Jan 2014 09:18:21 +0100 Subject: zynq: Move bootmode to headers These numbers will be reused by SPL. Signed-off-by: Michal Simek --- arch/arm/include/asm/arch-zynq/hardware.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/include/asm/arch-zynq/hardware.h b/arch/arm/include/asm/arch-zynq/hardware.h index cd69677..1fe0448 100644 --- a/arch/arm/include/asm/arch-zynq/hardware.h +++ b/arch/arm/include/asm/arch-zynq/hardware.h @@ -21,6 +21,12 @@ #define ZYNQ_SPI_BASEADDR1 0xE0007000 #define ZYNQ_DDRC_BASEADDR 0xF8006000 +/* Bootmode setting values */ +#define ZYNQ_BM_MASK 0xF +#define ZYNQ_BM_NOR 0x2 +#define ZYNQ_BM_SD 0x5 +#define ZYNQ_BM_JTAG 0x0 + /* Reflect slcr offsets */ struct slcr_regs { u32 scl; /* 0x0 */ -- cgit v1.1 From bf83495040fcf273eba534f7c2c0cb2325d2240c Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Thu, 19 Dec 2013 23:38:58 +0530 Subject: zynq: serial: Simplify serial driver initialization Define both serial uarts in the driver and return default uart based on board configuration. - Move baseaddresses to hardware.h - Define default baudrate and clock values Signed-off-by: Michal Simek --- arch/arm/include/asm/arch-zynq/hardware.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/include/asm/arch-zynq/hardware.h b/arch/arm/include/asm/arch-zynq/hardware.h index 1fe0448..d0fba64 100644 --- a/arch/arm/include/asm/arch-zynq/hardware.h +++ b/arch/arm/include/asm/arch-zynq/hardware.h @@ -7,6 +7,8 @@ #ifndef _ASM_ARCH_HARDWARE_H #define _ASM_ARCH_HARDWARE_H +#define ZYNQ_SERIAL_BASEADDR0 0xE0000000 +#define ZYNQ_SERIAL_BASEADDR1 0xE0001000 #define ZYNQ_SYS_CTRL_BASEADDR 0xF8000000 #define ZYNQ_DEV_CFG_APB_BASEADDR 0xF8007000 #define ZYNQ_SCU_BASEADDR 0xF8F00000 -- cgit v1.1 From 6c3e61de3c9e6fbc283c16269f2e86f8fe0e0a6c Mon Sep 17 00:00:00 2001 From: Soren Brinkmann Date: Thu, 21 Nov 2013 13:38:54 -0800 Subject: zynq: Provide a framework to read clock frequencies Signed-off-by: Soren Brinkmann Signed-off-by: Michal Simek --- arch/arm/cpu/armv7/zynq/Makefile | 1 + arch/arm/cpu/armv7/zynq/clk.c | 638 ++++++++++++++++++++++++++++++ arch/arm/cpu/armv7/zynq/cpu.c | 2 + arch/arm/include/asm/arch-zynq/clk.h | 29 ++ arch/arm/include/asm/arch-zynq/hardware.h | 32 +- 5 files changed, 700 insertions(+), 2 deletions(-) create mode 100644 arch/arm/cpu/armv7/zynq/clk.c create mode 100644 arch/arm/include/asm/arch-zynq/clk.h (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/zynq/Makefile b/arch/arm/cpu/armv7/zynq/Makefile index d382d49..3374789 100644 --- a/arch/arm/cpu/armv7/zynq/Makefile +++ b/arch/arm/cpu/armv7/zynq/Makefile @@ -12,3 +12,4 @@ obj-y := timer.o obj-y += cpu.o obj-y += ddrc.o obj-y += slcr.o +obj-y += clk.o diff --git a/arch/arm/cpu/armv7/zynq/clk.c b/arch/arm/cpu/armv7/zynq/clk.c new file mode 100644 index 0000000..0891a23 --- /dev/null +++ b/arch/arm/cpu/armv7/zynq/clk.c @@ -0,0 +1,638 @@ +/* + * Copyright (C) 2013 Soren Brinkmann + * Copyright (C) 2013 Xilinx, Inc. All rights reserved. + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include +#include +#include +#include +#include + +/* Board oscillator frequency */ +#ifndef CONFIG_ZYNQ_PS_CLK_FREQ +# define CONFIG_ZYNQ_PS_CLK_FREQ 33333333UL +#endif + +/* Register bitfield defines */ +#define PLLCTRL_FBDIV_MASK 0x7f000 +#define PLLCTRL_FBDIV_SHIFT 12 +#define PLLCTRL_BPFORCE_MASK (1 << 4) +#define PLLCTRL_PWRDWN_MASK 2 +#define PLLCTRL_PWRDWN_SHIFT 1 +#define PLLCTRL_RESET_MASK 1 +#define PLLCTRL_RESET_SHIFT 0 + +#define ZYNQ_CLK_MAXDIV 0x3f +#define CLK_CTRL_DIV1_SHIFT 20 +#define CLK_CTRL_DIV1_MASK (ZYNQ_CLK_MAXDIV << CLK_CTRL_DIV1_SHIFT) +#define CLK_CTRL_DIV0_SHIFT 8 +#define CLK_CTRL_DIV0_MASK (ZYNQ_CLK_MAXDIV << CLK_CTRL_DIV0_SHIFT) +#define CLK_CTRL_SRCSEL_SHIFT 4 +#define CLK_CTRL_SRCSEL_MASK (0x3 << CLK_CTRL_SRCSEL_SHIFT) + +#define CLK_CTRL_DIV2X_SHIFT 26 +#define CLK_CTRL_DIV2X_MASK (ZYNQ_CLK_MAXDIV << CLK_CTRL_DIV2X_SHIFT) +#define CLK_CTRL_DIV3X_SHIFT 20 +#define CLK_CTRL_DIV3X_MASK (ZYNQ_CLK_MAXDIV << CLK_CTRL_DIV3X_SHIFT) + +#define ZYNQ_CLKMUX_SEL_0 0 +#define ZYNQ_CLKMUX_SEL_1 1 +#define ZYNQ_CLKMUX_SEL_2 2 +#define ZYNQ_CLKMUX_SEL_3 3 + +DECLARE_GLOBAL_DATA_PTR; + +struct clk; + +/** + * struct clk_ops: + * @set_rate: Function pointer to set_rate() implementation + * @get_rate: Function pointer to get_rate() implementation + */ +struct clk_ops { + int (*set_rate)(struct clk *clk, unsigned long rate); + unsigned long (*get_rate)(struct clk *clk); +}; + +/** + * struct clk: + * @name: Clock name + * @frequency: Currenct frequency + * @parent: Parent clock + * @flags: Clock flags + * @reg: Clock control register + * @ops: Clock operations + */ +struct clk { + char *name; + unsigned long frequency; + enum zynq_clk parent; + unsigned int flags; + u32 *reg; + struct clk_ops ops; +}; +#define ZYNQ_CLK_FLAGS_HAS_2_DIVS 1 + +static struct clk clks[clk_max]; + +/** + * __zynq_clk_cpu_get_parent() - Decode clock multiplexer + * @srcsel: Mux select value + * Returns the clock identifier associated with the selected mux input. + */ +static int __zynq_clk_cpu_get_parent(unsigned int srcsel) +{ + unsigned int ret; + + switch (srcsel) { + case ZYNQ_CLKMUX_SEL_0: + case ZYNQ_CLKMUX_SEL_1: + ret = armpll_clk; + break; + case ZYNQ_CLKMUX_SEL_2: + ret = ddrpll_clk; + break; + case ZYNQ_CLKMUX_SEL_3: + ret = iopll_clk; + break; + default: + ret = armpll_clk; + break; + } + + return ret; +} + +/** + * ddr2x_get_rate() - Get clock rate of DDR2x clock + * @clk: Clock handle + * Returns the current clock rate of @clk. + */ +static unsigned long ddr2x_get_rate(struct clk *clk) +{ + u32 clk_ctrl = readl(clk->reg); + u32 div = (clk_ctrl & CLK_CTRL_DIV2X_MASK) >> CLK_CTRL_DIV2X_SHIFT; + + return DIV_ROUND_CLOSEST(zynq_clk_get_rate(clk->parent), div); +} + +/** + * ddr3x_get_rate() - Get clock rate of DDR3x clock + * @clk: Clock handle + * Returns the current clock rate of @clk. + */ +static unsigned long ddr3x_get_rate(struct clk *clk) +{ + u32 clk_ctrl = readl(clk->reg); + u32 div = (clk_ctrl & CLK_CTRL_DIV3X_MASK) >> CLK_CTRL_DIV3X_SHIFT; + + return DIV_ROUND_CLOSEST(zynq_clk_get_rate(clk->parent), div); +} + +static void init_ddr_clocks(void) +{ + u32 div0, div1; + unsigned long prate = zynq_clk_get_rate(ddrpll_clk); + u32 clk_ctrl = readl(&slcr_base->ddr_clk_ctrl); + + /* DDR2x */ + clks[ddr2x_clk].reg = &slcr_base->ddr_clk_ctrl; + clks[ddr2x_clk].parent = ddrpll_clk; + clks[ddr2x_clk].name = "ddr_2x"; + clks[ddr2x_clk].frequency = ddr2x_get_rate(&clks[ddr2x_clk]); + clks[ddr2x_clk].ops.get_rate = ddr2x_get_rate; + + /* DDR3x */ + clks[ddr3x_clk].reg = &slcr_base->ddr_clk_ctrl; + clks[ddr3x_clk].parent = ddrpll_clk; + clks[ddr3x_clk].name = "ddr_3x"; + clks[ddr3x_clk].frequency = ddr3x_get_rate(&clks[ddr3x_clk]); + clks[ddr3x_clk].ops.get_rate = ddr3x_get_rate; + + /* DCI */ + clk_ctrl = readl(&slcr_base->dci_clk_ctrl); + div0 = (clk_ctrl & CLK_CTRL_DIV0_MASK) >> CLK_CTRL_DIV0_SHIFT; + div1 = (clk_ctrl & CLK_CTRL_DIV1_MASK) >> CLK_CTRL_DIV1_SHIFT; + clks[dci_clk].reg = &slcr_base->dci_clk_ctrl; + clks[dci_clk].parent = ddrpll_clk; + clks[dci_clk].frequency = DIV_ROUND_CLOSEST( + DIV_ROUND_CLOSEST(prate, div0), div1); + clks[dci_clk].name = "dci"; +} + +static void init_cpu_clocks(void) +{ + int clk_621; + u32 reg, div, srcsel; + enum zynq_clk parent; + + reg = readl(&slcr_base->arm_clk_ctrl); + clk_621 = readl(&slcr_base->clk_621_true) & 1; + div = (reg & CLK_CTRL_DIV0_MASK) >> CLK_CTRL_DIV0_SHIFT; + srcsel = (reg & CLK_CTRL_SRCSEL_MASK) >> CLK_CTRL_SRCSEL_SHIFT; + parent = __zynq_clk_cpu_get_parent(srcsel); + + /* cpu clocks */ + clks[cpu_6or4x_clk].reg = &slcr_base->arm_clk_ctrl; + clks[cpu_6or4x_clk].parent = parent; + clks[cpu_6or4x_clk].frequency = DIV_ROUND_CLOSEST( + zynq_clk_get_rate(parent), div); + clks[cpu_6or4x_clk].name = "cpu_6or4x"; + + clks[cpu_3or2x_clk].reg = &slcr_base->arm_clk_ctrl; + clks[cpu_3or2x_clk].parent = cpu_6or4x_clk; + clks[cpu_3or2x_clk].frequency = zynq_clk_get_rate(cpu_6or4x_clk) / 2; + clks[cpu_3or2x_clk].name = "cpu_3or2x"; + + clks[cpu_2x_clk].reg = &slcr_base->arm_clk_ctrl; + clks[cpu_2x_clk].parent = cpu_6or4x_clk; + clks[cpu_2x_clk].frequency = zynq_clk_get_rate(cpu_6or4x_clk) / + (2 + clk_621); + clks[cpu_2x_clk].name = "cpu_2x"; + + clks[cpu_1x_clk].reg = &slcr_base->arm_clk_ctrl; + clks[cpu_1x_clk].parent = cpu_6or4x_clk; + clks[cpu_1x_clk].frequency = zynq_clk_get_rate(cpu_6or4x_clk) / + (4 + 2 * clk_621); + clks[cpu_1x_clk].name = "cpu_1x"; +} + +/** + * periph_calc_two_divs() - Calculate clock dividers + * @cur_rate: Current clock rate + * @tgt_rate: Target clock rate + * @prate: Parent clock rate + * @div0: First divider (output) + * @div1: Second divider (output) + * Returns the actual clock rate possible. + * + * Calculates clock dividers for clocks with two 6-bit dividers. + */ +static unsigned long periph_calc_two_divs(unsigned long cur_rate, + unsigned long tgt_rate, unsigned long prate, u32 *div0, + u32 *div1) +{ + long err, best_err = (long)(~0UL >> 1); + unsigned long rate, best_rate = 0; + u32 d0, d1; + + for (d0 = 1; d0 <= ZYNQ_CLK_MAXDIV; d0++) { + for (d1 = 1; d1 <= ZYNQ_CLK_MAXDIV >> 1; d1++) { + rate = DIV_ROUND_CLOSEST(DIV_ROUND_CLOSEST(prate, d0), + d1); + err = abs(rate - tgt_rate); + + if (err < best_err) { + *div0 = d0; + *div1 = d1; + best_err = err; + best_rate = rate; + } + } + } + + return best_rate; +} + +/** + * zynq_clk_periph_set_rate() - Set clock rate + * @clk: Handle of the peripheral clock + * @rate: New clock rate + * Sets the clock frequency of @clk to @rate. Returns zero on success. + */ +static int zynq_clk_periph_set_rate(struct clk *clk, + unsigned long rate) +{ + u32 ctrl, div0 = 0, div1 = 0; + unsigned long prate, new_rate, cur_rate = clk->frequency; + + ctrl = readl(clk->reg); + prate = zynq_clk_get_rate(clk->parent); + ctrl &= ~CLK_CTRL_DIV0_MASK; + + if (clk->flags & ZYNQ_CLK_FLAGS_HAS_2_DIVS) { + ctrl &= ~CLK_CTRL_DIV1_MASK; + new_rate = periph_calc_two_divs(cur_rate, rate, prate, &div0, + &div1); + ctrl |= div1 << CLK_CTRL_DIV1_SHIFT; + } else { + div0 = DIV_ROUND_CLOSEST(prate, rate); + div0 &= ZYNQ_CLK_MAXDIV; + new_rate = DIV_ROUND_CLOSEST(rate, div0); + } + + /* write new divs to hardware */ + ctrl |= div0 << CLK_CTRL_DIV0_SHIFT; + writel(ctrl, clk->reg); + + /* update frequency in clk framework */ + clk->frequency = new_rate; + + return 0; +} + +/** + * zynq_clk_periph_get_rate() - Get clock rate + * @clk: Handle of the peripheral clock + * Returns the current clock rate of @clk. + */ +static unsigned long zynq_clk_periph_get_rate(struct clk *clk) +{ + u32 clk_ctrl = readl(clk->reg); + u32 div0 = (clk_ctrl & CLK_CTRL_DIV0_MASK) >> CLK_CTRL_DIV0_SHIFT; + u32 div1 = 1; + + if (clk->flags & ZYNQ_CLK_FLAGS_HAS_2_DIVS) + div1 = (clk_ctrl & CLK_CTRL_DIV1_MASK) >> CLK_CTRL_DIV1_SHIFT; + + /* a register value of zero == division by 1 */ + if (!div0) + div0 = 1; + if (!div1) + div1 = 1; + + return + DIV_ROUND_CLOSEST( + DIV_ROUND_CLOSEST(zynq_clk_get_rate(clk->parent), div0), + div1); +} + +/** + * __zynq_clk_periph_get_parent() - Decode clock multiplexer + * @srcsel: Mux select value + * Returns the clock identifier associated with the selected mux input. + */ +static enum zynq_clk __zynq_clk_periph_get_parent(u32 srcsel) +{ + switch (srcsel) { + case ZYNQ_CLKMUX_SEL_0: + case ZYNQ_CLKMUX_SEL_1: + return iopll_clk; + case ZYNQ_CLKMUX_SEL_2: + return armpll_clk; + case ZYNQ_CLKMUX_SEL_3: + return ddrpll_clk; + default: + return 0; + } +} + +/** + * zynq_clk_periph_get_parent() - Decode clock multiplexer + * @clk: Clock handle + * Returns the clock identifier associated with the selected mux input. + */ +static enum zynq_clk zynq_clk_periph_get_parent(struct clk *clk) +{ + u32 clk_ctrl = readl(clk->reg); + u32 srcsel = (clk_ctrl & CLK_CTRL_SRCSEL_MASK) >> CLK_CTRL_SRCSEL_SHIFT; + + return __zynq_clk_periph_get_parent(srcsel); +} + +/** + * zynq_clk_register_periph_clk() - Set up a peripheral clock with the framework + * @clk: Pointer to struct clk for the clock + * @ctrl: Clock control register + * @name: PLL name + * @two_divs: Indicates whether the clock features one or two dividers + */ +static int zynq_clk_register_periph_clk(struct clk *clk, u32 *ctrl, char *name, + bool two_divs) +{ + clk->name = name; + clk->reg = ctrl; + if (two_divs) + clk->flags = ZYNQ_CLK_FLAGS_HAS_2_DIVS; + clk->parent = zynq_clk_periph_get_parent(clk); + clk->frequency = zynq_clk_periph_get_rate(clk); + clk->ops.get_rate = zynq_clk_periph_get_rate; + clk->ops.set_rate = zynq_clk_periph_set_rate; + + return 0; +} + +static void init_periph_clocks(void) +{ + zynq_clk_register_periph_clk(&clks[gem0_clk], &slcr_base->gem0_clk_ctrl, + "gem0", 1); + zynq_clk_register_periph_clk(&clks[gem1_clk], &slcr_base->gem1_clk_ctrl, + "gem1", 1); + + zynq_clk_register_periph_clk(&clks[smc_clk], &slcr_base->smc_clk_ctrl, + "smc", 0); + + zynq_clk_register_periph_clk(&clks[lqspi_clk], + &slcr_base->lqspi_clk_ctrl, "lqspi", 0); + + zynq_clk_register_periph_clk(&clks[sdio0_clk], + &slcr_base->sdio_clk_ctrl, "sdio0", 0); + zynq_clk_register_periph_clk(&clks[sdio1_clk], + &slcr_base->sdio_clk_ctrl, "sdio1", 0); + + zynq_clk_register_periph_clk(&clks[spi0_clk], &slcr_base->spi_clk_ctrl, + "spi0", 0); + zynq_clk_register_periph_clk(&clks[spi1_clk], &slcr_base->spi_clk_ctrl, + "spi1", 0); + + zynq_clk_register_periph_clk(&clks[uart0_clk], + &slcr_base->uart_clk_ctrl, "uart0", 0); + zynq_clk_register_periph_clk(&clks[uart1_clk], + &slcr_base->uart_clk_ctrl, "uart1", 0); + + zynq_clk_register_periph_clk(&clks[dbg_trc_clk], + &slcr_base->dbg_clk_ctrl, "dbg_trc", 0); + zynq_clk_register_periph_clk(&clks[dbg_apb_clk], + &slcr_base->dbg_clk_ctrl, "dbg_apb", 0); + + zynq_clk_register_periph_clk(&clks[pcap_clk], + &slcr_base->pcap_clk_ctrl, "pcap", 0); + + zynq_clk_register_periph_clk(&clks[fclk0_clk], + &slcr_base->fpga0_clk_ctrl, "fclk0", 1); + zynq_clk_register_periph_clk(&clks[fclk1_clk], + &slcr_base->fpga1_clk_ctrl, "fclk1", 1); + zynq_clk_register_periph_clk(&clks[fclk2_clk], + &slcr_base->fpga2_clk_ctrl, "fclk2", 1); + zynq_clk_register_periph_clk(&clks[fclk3_clk], + &slcr_base->fpga3_clk_ctrl, "fclk3", 1); +} + +/** + * zynq_clk_register_aper_clk() - Set up a APER clock with the framework + * @clk: Pointer to struct clk for the clock + * @ctrl: Clock control register + * @name: PLL name + */ +static void zynq_clk_register_aper_clk(struct clk *clk, u32 *ctrl, char *name) +{ + clk->name = name; + clk->reg = ctrl; + clk->parent = cpu_1x_clk; + clk->frequency = zynq_clk_get_rate(clk->parent); +} + +static void init_aper_clocks(void) +{ + zynq_clk_register_aper_clk(&clks[usb0_aper_clk], + &slcr_base->aper_clk_ctrl, "usb0_aper"); + zynq_clk_register_aper_clk(&clks[usb1_aper_clk], + &slcr_base->aper_clk_ctrl, "usb1_aper"); + + zynq_clk_register_aper_clk(&clks[gem0_aper_clk], + &slcr_base->aper_clk_ctrl, "gem0_aper"); + zynq_clk_register_aper_clk(&clks[gem1_aper_clk], + &slcr_base->aper_clk_ctrl, "gem1_aper"); + + zynq_clk_register_aper_clk(&clks[sdio0_aper_clk], + &slcr_base->aper_clk_ctrl, "sdio0_aper"); + zynq_clk_register_aper_clk(&clks[sdio1_aper_clk], + &slcr_base->aper_clk_ctrl, "sdio1_aper"); + + zynq_clk_register_aper_clk(&clks[spi0_aper_clk], + &slcr_base->aper_clk_ctrl, "spi0_aper"); + zynq_clk_register_aper_clk(&clks[spi1_aper_clk], + &slcr_base->aper_clk_ctrl, "spi1_aper"); + + zynq_clk_register_aper_clk(&clks[can0_aper_clk], + &slcr_base->aper_clk_ctrl, "can0_aper"); + zynq_clk_register_aper_clk(&clks[can1_aper_clk], + &slcr_base->aper_clk_ctrl, "can1_aper"); + + zynq_clk_register_aper_clk(&clks[i2c0_aper_clk], + &slcr_base->aper_clk_ctrl, "i2c0_aper"); + zynq_clk_register_aper_clk(&clks[i2c1_aper_clk], + &slcr_base->aper_clk_ctrl, "i2c1_aper"); + + zynq_clk_register_aper_clk(&clks[uart0_aper_clk], + &slcr_base->aper_clk_ctrl, "uart0_aper"); + zynq_clk_register_aper_clk(&clks[uart1_aper_clk], + &slcr_base->aper_clk_ctrl, "uart1_aper"); + + zynq_clk_register_aper_clk(&clks[gpio_aper_clk], + &slcr_base->aper_clk_ctrl, "gpio_aper"); + + zynq_clk_register_aper_clk(&clks[lqspi_aper_clk], + &slcr_base->aper_clk_ctrl, "lqspi_aper"); + + zynq_clk_register_aper_clk(&clks[smc_aper_clk], + &slcr_base->aper_clk_ctrl, "smc_aper"); +} + +/** + * __zynq_clk_pll_get_rate() - Get PLL rate + * @addr: Address of the PLL's control register + * Returns the current PLL output rate. + */ +static unsigned long __zynq_clk_pll_get_rate(u32 *addr) +{ + u32 reg, mul, bypass; + + reg = readl(addr); + bypass = reg & PLLCTRL_BPFORCE_MASK; + if (bypass) + mul = 1; + else + mul = (reg & PLLCTRL_FBDIV_MASK) >> PLLCTRL_FBDIV_SHIFT; + + return CONFIG_ZYNQ_PS_CLK_FREQ * mul; +} + +/** + * zynq_clk_pll_get_rate() - Get PLL rate + * @pll: Handle of the PLL + * Returns the current clock rate of @pll. + */ +static unsigned long zynq_clk_pll_get_rate(struct clk *pll) +{ + return __zynq_clk_pll_get_rate(pll->reg); +} + +/** + * zynq_clk_register_pll() - Set up a PLL with the framework + * @clk: Pointer to struct clk for the PLL + * @ctrl: PLL control register + * @name: PLL name + * @prate: PLL input clock rate + */ +static void zynq_clk_register_pll(struct clk *clk, u32 *ctrl, char *name, + unsigned long prate) +{ + clk->name = name; + clk->reg = ctrl; + clk->frequency = zynq_clk_pll_get_rate(clk); + clk->ops.get_rate = zynq_clk_pll_get_rate; +} + +/** + * clkid_2_register() - Get clock control register + * @id: Clock identifier of one of the PLLs + * Returns the address of the requested PLL's control register. + */ +static u32 *clkid_2_register(enum zynq_clk id) +{ + switch (id) { + case armpll_clk: + return &slcr_base->arm_pll_ctrl; + case ddrpll_clk: + return &slcr_base->ddr_pll_ctrl; + case iopll_clk: + return &slcr_base->io_pll_ctrl; + default: + return &slcr_base->io_pll_ctrl; + } +} + +/* API */ +/** + * zynq_clk_early_init() - Early init for the clock framework + * + * This function is called from before relocation and sets up the CPU clock + * frequency in the global data struct. + */ +void zynq_clk_early_init(void) +{ + u32 reg = readl(&slcr_base->arm_clk_ctrl); + u32 div = (reg & CLK_CTRL_DIV0_MASK) >> CLK_CTRL_DIV0_SHIFT; + u32 srcsel = (reg & CLK_CTRL_SRCSEL_MASK) >> CLK_CTRL_SRCSEL_SHIFT; + enum zynq_clk parent = __zynq_clk_cpu_get_parent(srcsel); + u32 *pllreg = clkid_2_register(parent); + unsigned long prate = __zynq_clk_pll_get_rate(pllreg); + + if (!div) + div = 1; + + gd->cpu_clk = DIV_ROUND_CLOSEST(prate, div); +} + +/** + * get_uart_clk() - Get UART input frequency + * @dev_index: UART ID + * Returns UART input clock frequency in Hz. + * + * Compared to zynq_clk_get_rate() this function is designed to work before + * relocation and can be called when the serial UART is set up. + */ +unsigned long get_uart_clk(int dev_index) +{ + u32 reg = readl(&slcr_base->uart_clk_ctrl); + u32 div = (reg & CLK_CTRL_DIV0_MASK) >> CLK_CTRL_DIV0_SHIFT; + u32 srcsel = (reg & CLK_CTRL_SRCSEL_MASK) >> CLK_CTRL_SRCSEL_SHIFT; + enum zynq_clk parent = __zynq_clk_periph_get_parent(srcsel); + u32 *pllreg = clkid_2_register(parent); + unsigned long prate = __zynq_clk_pll_get_rate(pllreg); + + if (!div) + div = 1; + + return DIV_ROUND_CLOSEST(prate, div); +} + +/** + * set_cpu_clk_info() - Initialize clock framework + * Always returns zero. + * + * This function is called from common code after relocation and sets up the + * clock framework. The framework must not be used before this function had been + * called. + */ +int set_cpu_clk_info(void) +{ + zynq_clk_register_pll(&clks[armpll_clk], &slcr_base->arm_pll_ctrl, + "armpll", CONFIG_ZYNQ_PS_CLK_FREQ); + zynq_clk_register_pll(&clks[ddrpll_clk], &slcr_base->ddr_pll_ctrl, + "ddrpll", CONFIG_ZYNQ_PS_CLK_FREQ); + zynq_clk_register_pll(&clks[iopll_clk], &slcr_base->io_pll_ctrl, + "iopll", CONFIG_ZYNQ_PS_CLK_FREQ); + + init_ddr_clocks(); + init_cpu_clocks(); + init_periph_clocks(); + init_aper_clocks(); + + return 0; +} + +/** + * zynq_clk_get_rate() - Get clock rate + * @clk: Clock identifier + * Returns the current clock rate of @clk on success or zero for an invalid + * clock id. + */ +unsigned long zynq_clk_get_rate(enum zynq_clk clk) +{ + if (clk < 0 || clk >= clk_max) + return 0; + + return clks[clk].frequency; +} + +/** + * zynq_clk_set_rate() - Set clock rate + * @clk: Clock identifier + * @rate: Requested clock rate + * Passes on the return value from the clock's set_rate() function or negative + * errno. + */ +int zynq_clk_set_rate(enum zynq_clk clk, unsigned long rate) +{ + if (clk < 0 || clk >= clk_max) + return -ENODEV; + + if (clks[clk].ops.set_rate) + return clks[clk].ops.set_rate(&clks[clk], rate); + + return -ENXIO; +} + +/** + * zynq_clk_get_name() - Get clock name + * @clk: Clock identifier + * Returns the name of @clk. + */ +const char *zynq_clk_get_name(enum zynq_clk clk) +{ + return clks[clk].name; +} diff --git a/arch/arm/cpu/armv7/zynq/cpu.c b/arch/arm/cpu/armv7/zynq/cpu.c index c771759..5d505dd 100644 --- a/arch/arm/cpu/armv7/zynq/cpu.c +++ b/arch/arm/cpu/armv7/zynq/cpu.c @@ -6,6 +6,7 @@ */ #include #include +#include #include #include @@ -35,6 +36,7 @@ int arch_cpu_init(void) writel(0xC, &slcr_base->ddr_urgent); #endif + zynq_clk_early_init(); zynq_slcr_lock(); return 0; diff --git a/arch/arm/include/asm/arch-zynq/clk.h b/arch/arm/include/asm/arch-zynq/clk.h new file mode 100644 index 0000000..250c5bc --- /dev/null +++ b/arch/arm/include/asm/arch-zynq/clk.h @@ -0,0 +1,29 @@ +/* + * Copyright (c) 2013 Xilinx Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _ZYNQ_CLK_H_ +#define _ZYNQ_CLK_H_ + +enum zynq_clk { + armpll_clk, ddrpll_clk, iopll_clk, + cpu_6or4x_clk, cpu_3or2x_clk, cpu_2x_clk, cpu_1x_clk, + ddr2x_clk, ddr3x_clk, dci_clk, + lqspi_clk, smc_clk, pcap_clk, gem0_clk, gem1_clk, + fclk0_clk, fclk1_clk, fclk2_clk, fclk3_clk, can0_clk, can1_clk, + sdio0_clk, sdio1_clk, uart0_clk, uart1_clk, spi0_clk, spi1_clk, dma_clk, + usb0_aper_clk, usb1_aper_clk, gem0_aper_clk, gem1_aper_clk, + sdio0_aper_clk, sdio1_aper_clk, spi0_aper_clk, spi1_aper_clk, + can0_aper_clk, can1_aper_clk, i2c0_aper_clk, i2c1_aper_clk, + uart0_aper_clk, uart1_aper_clk, gpio_aper_clk, lqspi_aper_clk, + smc_aper_clk, swdt_clk, dbg_trc_clk, dbg_apb_clk, clk_max}; + +void zynq_clk_early_init(void); +int zynq_clk_set_rate(enum zynq_clk clk, unsigned long rate); +unsigned long zynq_clk_get_rate(enum zynq_clk clk); +const char *zynq_clk_get_name(enum zynq_clk clk); +unsigned long get_uart_clk(int dev_id); + +#endif diff --git a/arch/arm/include/asm/arch-zynq/hardware.h b/arch/arm/include/asm/arch-zynq/hardware.h index d0fba64..39184da 100644 --- a/arch/arm/include/asm/arch-zynq/hardware.h +++ b/arch/arm/include/asm/arch-zynq/hardware.h @@ -34,12 +34,40 @@ struct slcr_regs { u32 scl; /* 0x0 */ u32 slcr_lock; /* 0x4 */ u32 slcr_unlock; /* 0x8 */ - u32 reserved0[75]; + u32 reserved0_1[61]; + u32 arm_pll_ctrl; /* 0x100 */ + u32 ddr_pll_ctrl; /* 0x104 */ + u32 io_pll_ctrl; /* 0x108 */ + u32 reserved0_2[5]; + u32 arm_clk_ctrl; /* 0x120 */ + u32 ddr_clk_ctrl; /* 0x124 */ + u32 dci_clk_ctrl; /* 0x128 */ + u32 aper_clk_ctrl; /* 0x12c */ + u32 reserved0_3[2]; u32 gem0_rclk_ctrl; /* 0x138 */ u32 gem1_rclk_ctrl; /* 0x13c */ u32 gem0_clk_ctrl; /* 0x140 */ u32 gem1_clk_ctrl; /* 0x144 */ - u32 reserved1[46]; + u32 smc_clk_ctrl; /* 0x148 */ + u32 lqspi_clk_ctrl; /* 0x14c */ + u32 sdio_clk_ctrl; /* 0x150 */ + u32 uart_clk_ctrl; /* 0x154 */ + u32 spi_clk_ctrl; /* 0x158 */ + u32 can_clk_ctrl; /* 0x15c */ + u32 can_mioclk_ctrl; /* 0x160 */ + u32 dbg_clk_ctrl; /* 0x164 */ + u32 pcap_clk_ctrl; /* 0x168 */ + u32 reserved0_4[1]; + u32 fpga0_clk_ctrl; /* 0x170 */ + u32 reserved0_5[3]; + u32 fpga1_clk_ctrl; /* 0x180 */ + u32 reserved0_6[3]; + u32 fpga2_clk_ctrl; /* 0x190 */ + u32 reserved0_7[3]; + u32 fpga3_clk_ctrl; /* 0x1a0 */ + u32 reserved0_8[8]; + u32 clk_621_true; /* 0x1c4 */ + u32 reserved1[14]; u32 pss_rst_ctrl; /* 0x200 */ u32 reserved2[15]; u32 fpga_rst_ctrl; /* 0x240 */ -- cgit v1.1 From 614c27251196b7567fdb6e98a8b1fe2905367c0c Mon Sep 17 00:00:00 2001 From: Soren Brinkmann Date: Thu, 21 Nov 2013 13:38:57 -0800 Subject: zynq: timer: Migrate to zynq clock framework Remove hardcoded frequencies in favor of Zynq clock framework. Signed-off-by: Soren Brinkmann Signed-off-by: Michal Simek --- arch/arm/cpu/armv7/zynq/timer.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/zynq/timer.c b/arch/arm/cpu/armv7/zynq/timer.c index 2be253c..78e30a6 100644 --- a/arch/arm/cpu/armv7/zynq/timer.c +++ b/arch/arm/cpu/armv7/zynq/timer.c @@ -29,6 +29,7 @@ #include #include #include +#include DECLARE_GLOBAL_DATA_PTR; @@ -48,7 +49,6 @@ static struct scu_timer *timer_base = #define TIMER_LOAD_VAL 0xFFFFFFFF #define TIMER_PRESCALE 255 -#define TIMER_TICK_HZ (CONFIG_CPU_FREQ_HZ / 2 / TIMER_PRESCALE) int timer_init(void) { @@ -56,6 +56,8 @@ int timer_init(void) (TIMER_PRESCALE << SCUTIMER_CONTROL_PRESCALER_SHIFT) | SCUTIMER_CONTROL_ENABLE_MASK; + gd->arch.timer_rate_hz = (gd->cpu_clk / 2) / TIMER_PRESCALE; + /* Load the timer counter register */ writel(0xFFFFFFFF, &timer_base->load); @@ -69,7 +71,7 @@ int timer_init(void) /* Reset time */ gd->arch.lastinc = readl(&timer_base->counter) / - (TIMER_TICK_HZ / CONFIG_SYS_HZ); + (gd->arch.timer_rate_hz / CONFIG_SYS_HZ); gd->arch.tbl = 0; return 0; @@ -83,7 +85,8 @@ ulong get_timer_masked(void) { ulong now; - now = readl(&timer_base->counter) / (TIMER_TICK_HZ / CONFIG_SYS_HZ); + now = readl(&timer_base->counter) / + (gd->arch.timer_rate_hz / CONFIG_SYS_HZ); if (gd->arch.lastinc >= now) { /* Normal mode */ @@ -107,7 +110,7 @@ void __udelay(unsigned long usec) if (usec == 0) return; - countticks = lldiv(TIMER_TICK_HZ * usec, 1000000); + countticks = lldiv(gd->arch.timer_rate_hz * usec, 1000000); /* decrementing timer */ timeend = readl(&timer_base->counter) - countticks; -- cgit v1.1 From 2826fd320cf364077ccc64e645af468adcbe567e Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Fri, 22 Nov 2013 15:29:38 +0100 Subject: zynq: timer: Fix hangs if network activity attempted after about one hour Cortex-A9 MPCore TRM' from ARM (ARM DDI 0407G ID072711) describes in the section 4.1.1 how this value calculation should be done. This patch fixes the problem if network activity such as ping or tftp is attempted after u-boot has been idle for an hour, it hangs, and cannot control-C out of it. Signed-off-by: Uday Hegde Signed-off-by: Michal Simek --- arch/arm/cpu/armv7/zynq/timer.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/zynq/timer.c b/arch/arm/cpu/armv7/zynq/timer.c index 78e30a6..174e5a1 100644 --- a/arch/arm/cpu/armv7/zynq/timer.c +++ b/arch/arm/cpu/armv7/zynq/timer.c @@ -56,7 +56,7 @@ int timer_init(void) (TIMER_PRESCALE << SCUTIMER_CONTROL_PRESCALER_SHIFT) | SCUTIMER_CONTROL_ENABLE_MASK; - gd->arch.timer_rate_hz = (gd->cpu_clk / 2) / TIMER_PRESCALE; + gd->arch.timer_rate_hz = (gd->cpu_clk / 2) / (TIMER_PRESCALE + 1); /* Load the timer counter register */ writel(0xFFFFFFFF, &timer_base->load); @@ -93,7 +93,7 @@ ulong get_timer_masked(void) gd->arch.tbl += gd->arch.lastinc - now; } else { /* We have an overflow ... */ - gd->arch.tbl += gd->arch.lastinc + TIMER_LOAD_VAL - now; + gd->arch.tbl += gd->arch.lastinc + TIMER_LOAD_VAL - now + 1; } gd->arch.lastinc = now; -- cgit v1.1 From 1cd46ed2d30a931a66400635f158b14861f2d3b4 Mon Sep 17 00:00:00 2001 From: Soren Brinkmann Date: Thu, 21 Nov 2013 13:39:00 -0800 Subject: net: zynq_gem: Move RCLK details out of driver The GEM driver should not need to know about Zynq specific details of RCLK related registers and bitfields in the SLCR. Move those details to the slcr driver. Signed-off-by: Soren Brinkmann Signed-off-by: Michal Simek --- arch/arm/cpu/armv7/zynq/slcr.c | 6 +++--- arch/arm/include/asm/arch-zynq/sys_proto.h | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/zynq/slcr.c b/arch/arm/cpu/armv7/zynq/slcr.c index b4c11c3..6710d92 100644 --- a/arch/arm/cpu/armv7/zynq/slcr.c +++ b/arch/arm/cpu/armv7/zynq/slcr.c @@ -50,7 +50,7 @@ void zynq_slcr_cpu_reset(void) } /* Setup clk for network */ -void zynq_slcr_gem_clk_setup(u32 gem_id, u32 rclk, u32 clk) +void zynq_slcr_gem_clk_setup(u32 gem_id, u32 clk) { zynq_slcr_unlock(); @@ -63,12 +63,12 @@ void zynq_slcr_gem_clk_setup(u32 gem_id, u32 rclk, u32 clk) /* Set divisors for appropriate frequency in GEM_CLK_CTRL */ writel(clk, &slcr_base->gem1_clk_ctrl); /* Configure GEM_RCLK_CTRL */ - writel(rclk, &slcr_base->gem1_rclk_ctrl); + writel(1, &slcr_base->gem1_rclk_ctrl); } else { /* Set divisors for appropriate frequency in GEM_CLK_CTRL */ writel(clk, &slcr_base->gem0_clk_ctrl); /* Configure GEM_RCLK_CTRL */ - writel(rclk, &slcr_base->gem0_rclk_ctrl); + writel(1, &slcr_base->gem0_rclk_ctrl); } udelay(100000); out: diff --git a/arch/arm/include/asm/arch-zynq/sys_proto.h b/arch/arm/include/asm/arch-zynq/sys_proto.h index 8f925af..a485d79 100644 --- a/arch/arm/include/asm/arch-zynq/sys_proto.h +++ b/arch/arm/include/asm/arch-zynq/sys_proto.h @@ -10,7 +10,7 @@ extern void zynq_slcr_lock(void); extern void zynq_slcr_unlock(void); extern void zynq_slcr_cpu_reset(void); -extern void zynq_slcr_gem_clk_setup(u32 gem_id, u32 rclk, u32 clk); +extern void zynq_slcr_gem_clk_setup(u32 gem_id, u32 clk); extern void zynq_slcr_devcfg_disable(void); extern void zynq_slcr_devcfg_enable(void); extern u32 zynq_slcr_get_boot_mode(void); -- cgit v1.1 From 97598fcf10eba577622f3387eaecd43dd710da0d Mon Sep 17 00:00:00 2001 From: Soren Brinkmann Date: Thu, 21 Nov 2013 13:39:01 -0800 Subject: net: zynq_gem: Calculate clock dividers dynamically Remove hard coded clock divider setting and use the Zynq clock framework to dynamically calculate appropriate dividers at run time. Signed-off-by: Soren Brinkmann Signed-off-by: Michal Simek --- arch/arm/cpu/armv7/zynq/slcr.c | 13 ++++++++----- arch/arm/include/asm/arch-zynq/sys_proto.h | 2 +- 2 files changed, 9 insertions(+), 6 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/zynq/slcr.c b/arch/arm/cpu/armv7/zynq/slcr.c index 6710d92..d7c1882 100644 --- a/arch/arm/cpu/armv7/zynq/slcr.c +++ b/arch/arm/cpu/armv7/zynq/slcr.c @@ -8,6 +8,7 @@ #include #include #include +#include #define SLCR_LOCK_MAGIC 0x767B #define SLCR_UNLOCK_MAGIC 0xDF0D @@ -50,8 +51,10 @@ void zynq_slcr_cpu_reset(void) } /* Setup clk for network */ -void zynq_slcr_gem_clk_setup(u32 gem_id, u32 clk) +void zynq_slcr_gem_clk_setup(u32 gem_id, unsigned long clk_rate) { + int ret; + zynq_slcr_unlock(); if (gem_id > 1) { @@ -59,14 +62,14 @@ void zynq_slcr_gem_clk_setup(u32 gem_id, u32 clk) goto out; } + ret = zynq_clk_set_rate(gem0_clk + gem_id, clk_rate); + if (ret) + goto out; + if (gem_id) { - /* Set divisors for appropriate frequency in GEM_CLK_CTRL */ - writel(clk, &slcr_base->gem1_clk_ctrl); /* Configure GEM_RCLK_CTRL */ writel(1, &slcr_base->gem1_rclk_ctrl); } else { - /* Set divisors for appropriate frequency in GEM_CLK_CTRL */ - writel(clk, &slcr_base->gem0_clk_ctrl); /* Configure GEM_RCLK_CTRL */ writel(1, &slcr_base->gem0_rclk_ctrl); } diff --git a/arch/arm/include/asm/arch-zynq/sys_proto.h b/arch/arm/include/asm/arch-zynq/sys_proto.h index a485d79..0a2ba05 100644 --- a/arch/arm/include/asm/arch-zynq/sys_proto.h +++ b/arch/arm/include/asm/arch-zynq/sys_proto.h @@ -10,7 +10,7 @@ extern void zynq_slcr_lock(void); extern void zynq_slcr_unlock(void); extern void zynq_slcr_cpu_reset(void); -extern void zynq_slcr_gem_clk_setup(u32 gem_id, u32 clk); +extern void zynq_slcr_gem_clk_setup(u32 gem_id, unsigned long clk_rate); extern void zynq_slcr_devcfg_disable(void); extern void zynq_slcr_devcfg_enable(void); extern u32 zynq_slcr_get_boot_mode(void); -- cgit v1.1 From d6c9bbaad194b48e799ed84df67b629424a56508 Mon Sep 17 00:00:00 2001 From: Soren Brinkmann Date: Thu, 21 Nov 2013 13:39:03 -0800 Subject: zynq: Implement dump clock command Enable and implement dump clock command which shows soc frequencies. Signed-off-by: Soren Brinkmann Signed-off-by: Michal Simek --- arch/arm/cpu/armv7/zynq/clk.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/zynq/clk.c b/arch/arm/cpu/armv7/zynq/clk.c index 0891a23..4307111 100644 --- a/arch/arm/cpu/armv7/zynq/clk.c +++ b/arch/arm/cpu/armv7/zynq/clk.c @@ -6,6 +6,7 @@ */ #include #include +#include #include #include #include @@ -636,3 +637,23 @@ const char *zynq_clk_get_name(enum zynq_clk clk) { return clks[clk].name; } + +/** + * soc_clk_dump() - Print clock frequencies + * Returns zero on success + * + * Implementation for the clk dump command. + */ +int soc_clk_dump(void) +{ + int i; + + printf("clk\t\tfrequency\n"); + for (i = 0; i < clk_max; i++) { + const char *name = zynq_clk_get_name(i); + if (name) + printf("%10s%20lu\n", name, zynq_clk_get_rate(i)); + } + + return 0; +} -- cgit v1.1 From 96a5d4dc1ec1ce26b32a3fa294816a47b62ae68a Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Mon, 20 Jan 2014 11:05:37 +0100 Subject: zynq: Update CLK in bdinfo ARM has specific clk entries which should be also setup. Signed-off-by: Michal Simek --- arch/arm/cpu/armv7/zynq/clk.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/zynq/clk.c b/arch/arm/cpu/armv7/zynq/clk.c index 4307111..d2885dc 100644 --- a/arch/arm/cpu/armv7/zynq/clk.c +++ b/arch/arm/cpu/armv7/zynq/clk.c @@ -161,6 +161,8 @@ static void init_ddr_clocks(void) clks[dci_clk].frequency = DIV_ROUND_CLOSEST( DIV_ROUND_CLOSEST(prate, div0), div1); clks[dci_clk].name = "dci"; + + gd->bd->bi_ddr_freq = clks[ddr3x_clk].frequency / 1000000; } static void init_cpu_clocks(void) @@ -593,6 +595,9 @@ int set_cpu_clk_info(void) init_periph_clocks(); init_aper_clocks(); + gd->bd->bi_arm_freq = gd->cpu_clk / 1000000; + gd->bd->bi_dsp_freq = 0; + return 0; } -- cgit v1.1 From d7e269cfbdd5fe0bbc0961bcf89845484bf28de7 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Tue, 14 Jan 2014 14:21:52 +0100 Subject: zynq: Add support for U-BOOT SPL SPL is using ps7_init.c/h files which are generated from design tools which have to be copied to boards/xilinx/zynq folder before compilation. BSS section is moved to SDRAM because fat support requires more space than SRAM size. Added: - MMC and QSPI support - Boot OS directly from SPL - Enable SPL command Signed-off-by: Michal Simek Reviewed-by: Tom Rini --- arch/arm/cpu/armv7/zynq/Makefile | 1 + arch/arm/cpu/armv7/zynq/cpu.c | 4 +- arch/arm/cpu/armv7/zynq/spl.c | 69 ++++++++++++++++++++++++++++++++++ arch/arm/cpu/armv7/zynq/u-boot-spl.lds | 61 ++++++++++++++++++++++++++++++ arch/arm/include/asm/arch-zynq/spl.h | 18 +++++++++ 5 files changed, 151 insertions(+), 2 deletions(-) create mode 100644 arch/arm/cpu/armv7/zynq/spl.c create mode 100644 arch/arm/cpu/armv7/zynq/u-boot-spl.lds create mode 100644 arch/arm/include/asm/arch-zynq/spl.h (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/zynq/Makefile b/arch/arm/cpu/armv7/zynq/Makefile index 3374789..3363a3c 100644 --- a/arch/arm/cpu/armv7/zynq/Makefile +++ b/arch/arm/cpu/armv7/zynq/Makefile @@ -13,3 +13,4 @@ obj-y += cpu.o obj-y += ddrc.o obj-y += slcr.o obj-y += clk.o +obj-$(CONFIG_SPL_BUILD) += spl.o diff --git a/arch/arm/cpu/armv7/zynq/cpu.c b/arch/arm/cpu/armv7/zynq/cpu.c index 5d505dd..7626b5c 100644 --- a/arch/arm/cpu/armv7/zynq/cpu.c +++ b/arch/arm/cpu/armv7/zynq/cpu.c @@ -17,7 +17,7 @@ void lowlevel_init(void) int arch_cpu_init(void) { zynq_slcr_unlock(); - +#ifndef CONFIG_SPL_BUILD /* Device config APB, unlock the PCAP */ writel(0x757BDF0D, &devcfg_base->unlock); writel(0xFFFFFFFF, &devcfg_base->rom_shadow); @@ -35,7 +35,7 @@ int arch_cpu_init(void) /* Urgent write, ports S2/S3 */ writel(0xC, &slcr_base->ddr_urgent); #endif - +#endif zynq_clk_early_init(); zynq_slcr_lock(); diff --git a/arch/arm/cpu/armv7/zynq/spl.c b/arch/arm/cpu/armv7/zynq/spl.c new file mode 100644 index 0000000..fcad762 --- /dev/null +++ b/arch/arm/cpu/armv7/zynq/spl.c @@ -0,0 +1,69 @@ +/* + * (C) Copyright 2014 Xilinx, Inc. Michal Simek + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include +#include + +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +void board_init_f(ulong dummy) +{ + ps7_init(); + + /* Clear the BSS. */ + memset(__bss_start, 0, __bss_end - __bss_start); + + /* Set global data pointer. */ + gd = &gdata; + + preloader_console_init(); + arch_cpu_init(); + board_init_r(NULL, 0); +} + +u32 spl_boot_device(void) +{ + u32 mode; + + switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) { +#ifdef CONFIG_SPL_SPI_SUPPORT + case ZYNQ_BM_QSPI: + puts("qspi boot\n"); + mode = BOOT_DEVICE_SPI; + break; +#endif +#ifdef CONFIG_SPL_MMC_SUPPORT + case ZYNQ_BM_SD: + puts("mmc boot\n"); + mode = BOOT_DEVICE_MMC1; + break; +#endif + default: + puts("Unsupported boot mode selected\n"); + hang(); + } + + return mode; +} + +#ifdef CONFIG_SPL_MMC_SUPPORT +u32 spl_boot_mode(void) +{ + return MMCSD_MODE_FAT; +} +#endif + +#ifdef CONFIG_SPL_OS_BOOT +int spl_start_uboot(void) +{ + /* boot linux */ + return 0; +} +#endif diff --git a/arch/arm/cpu/armv7/zynq/u-boot-spl.lds b/arch/arm/cpu/armv7/zynq/u-boot-spl.lds new file mode 100644 index 0000000..0c4501e --- /dev/null +++ b/arch/arm/cpu/armv7/zynq/u-boot-spl.lds @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2014 Xilinx, Inc. Michal Simek + * Copyright (c) 2004-2008 Texas Instruments + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +MEMORY { .sram : ORIGIN = CONFIG_SPL_TEXT_BASE,\ + LENGTH = CONFIG_SPL_MAX_SIZE } +MEMORY { .sdram : ORIGIN = CONFIG_SPL_BSS_START_ADDR, \ + LENGTH = CONFIG_SPL_BSS_MAX_SIZE } + +OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) +SECTIONS +{ + . = ALIGN(4); + .text : + { + __image_copy_start = .; + CPUDIR/start.o (.text*) + *(.text*) + } > .sram + + . = ALIGN(4); + .rodata : { + *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) + } > .sram + + . = ALIGN(4); + .data : { + *(.data*) + } > .sram + + . = ALIGN(4); + + . = .; + + __image_copy_end = .; + + _end = .; + + /* Move BSS section to RAM because of FAT */ + .bss (NOLOAD) : { + __bss_start = .; + *(.bss*) + . = ALIGN(4); + __bss_end = .; + } > .sdram + + /DISCARD/ : { *(.dynsym) } + /DISCARD/ : { *(.dynstr*) } + /DISCARD/ : { *(.dynamic*) } + /DISCARD/ : { *(.plt*) } + /DISCARD/ : { *(.interp*) } + /DISCARD/ : { *(.gnu*) } +} diff --git a/arch/arm/include/asm/arch-zynq/spl.h b/arch/arm/include/asm/arch-zynq/spl.h new file mode 100644 index 0000000..5789d28 --- /dev/null +++ b/arch/arm/include/asm/arch-zynq/spl.h @@ -0,0 +1,18 @@ +/* + * (C) Copyright 2014 Xilinx, Inc. Michal Simek + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#ifndef _ASM_ARCH_SPL_H_ +#define _ASM_ARCH_SPL_H_ + +extern void ps7_init(void); + +#define BOOT_DEVICE_NONE 0 +#define BOOT_DEVICE_RAM 1 +#define BOOT_DEVICE_SPI 2 +#define BOOT_DEVICE_MMC1 3 +#define BOOT_DEVICE_MMC2 4 +#define BOOT_DEVICE_MMC2_2 5 + +#endif -- cgit v1.1 From e158665c1e4c4665302f0d95e26b7c7e6b70a83c Mon Sep 17 00:00:00 2001 From: Siva Durga Prasad Paladugu Date: Wed, 12 Feb 2014 21:38:35 +0530 Subject: arm: zynq: correct the argument to lldiv Typecast the argument with unsigned long long for proper calculation of lldiv Signed-off-by: Siva Durga Prasad Paladugu Signed-off-by: Michal Simek --- arch/arm/cpu/armv7/zynq/timer.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/cpu/armv7/zynq/timer.c b/arch/arm/cpu/armv7/zynq/timer.c index 174e5a1..303dbcf 100644 --- a/arch/arm/cpu/armv7/zynq/timer.c +++ b/arch/arm/cpu/armv7/zynq/timer.c @@ -110,7 +110,8 @@ void __udelay(unsigned long usec) if (usec == 0) return; - countticks = lldiv(gd->arch.timer_rate_hz * usec, 1000000); + countticks = lldiv(((unsigned long long)gd->arch.timer_rate_hz * usec), + 1000000); /* decrementing timer */ timeend = readl(&timer_base->counter) - countticks; -- cgit v1.1 From da781c60e5d55904d77931fcb63f25e65e2228be Mon Sep 17 00:00:00 2001 From: Andy Ng Date: Wed, 12 Feb 2014 14:31:15 +0000 Subject: imx6 SION bit has to be on for the pins that are used as ENET_REF_CLK Signed-off-by: Andy Ng --- arch/arm/include/asm/arch-mx6/mx6dl_pins.h | 6 +++--- arch/arm/include/asm/arch-mx6/mx6q_pins.h | 6 +++--- 2 files changed, 6 insertions(+), 6 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/include/asm/arch-mx6/mx6dl_pins.h b/arch/arm/include/asm/arch-mx6/mx6dl_pins.h index 55cc9ad..2e414ad 100644 --- a/arch/arm/include/asm/arch-mx6/mx6dl_pins.h +++ b/arch/arm/include/asm/arch-mx6/mx6dl_pins.h @@ -647,7 +647,7 @@ MX6_PAD_DECL(ENET_MDIO__ESAI_RX_CLK, 0x05BC, 0x01EC, 2, 0x083C, 0, 0) MX6_PAD_DECL(ENET_MDIO__ENET_1588_EVENT1_OUT, 0x05BC, 0x01EC, 4, 0x0000, 0, 0) MX6_PAD_DECL(ENET_MDIO__GPIO1_IO22, 0x05BC, 0x01EC, 5, 0x0000, 0, 0) MX6_PAD_DECL(ENET_MDIO__SPDIF_LOCK, 0x05BC, 0x01EC, 6, 0x0000, 0, 0) -MX6_PAD_DECL(ENET_REF_CLK__ENET_TX_CLK, 0x05C0, 0x01F0, 1, 0x0000, 0, 0) +MX6_PAD_DECL(ENET_REF_CLK__ENET_TX_CLK, 0x05C0, 0x01F0, 1 | IOMUX_CONFIG_SION, 0x0000, 0, 0) MX6_PAD_DECL(ENET_REF_CLK__ESAI_RX_FS, 0x05C0, 0x01F0, 2, 0x082C, 0, 0) MX6_PAD_DECL(ENET_REF_CLK__GPIO1_IO23, 0x05C0, 0x01F0, 5, 0x0000, 0, 0) MX6_PAD_DECL(ENET_REF_CLK__SPDIF_SR_CLK, 0x05C0, 0x01F0, 6, 0x0000, 0, 0) @@ -695,7 +695,7 @@ MX6_PAD_DECL(GPIO_1__GPIO1_IO01, 0x05E0, 0x0210, 5, 0x0000, 0, 0) MX6_PAD_DECL(GPIO_1__SD1_CD_B, 0x05E0, 0x0210, 6, 0x0000, 0, 0) MX6_PAD_DECL(GPIO_16__ESAI_TX3_RX2, 0x05E4, 0x0214, 0, 0x0850, 1, 0) MX6_PAD_DECL(GPIO_16__ENET_1588_EVENT2_IN, 0x05E4, 0x0214, 1, 0x0000, 0, 0) -MX6_PAD_DECL(GPIO_16__ENET_REF_CLK, 0x05E4, 0x0214, 2, 0x080C, 0, 0) +MX6_PAD_DECL(GPIO_16__ENET_REF_CLK, 0x05E4, 0x0214, 2 | IOMUX_CONFIG_SION, 0x080C, 0, 0) MX6_PAD_DECL(GPIO_16__SD1_LCTL, 0x05E4, 0x0214, 3, 0x0000, 0, 0) MX6_PAD_DECL(GPIO_16__SPDIF_IN, 0x05E4, 0x0214, 4, 0x08F0, 2, 0) MX6_PAD_DECL(GPIO_16__GPIO7_IO11, 0x05E4, 0x0214, 5, 0x0000, 0, 0) @@ -934,7 +934,7 @@ MX6_PAD_DECL(RGMII_TX_CTL__USBOH3_H2_STROBE, 0x06BC, 0x02D4, 0 | IOMUX_CONFIG_SI MX6_PAD_DECL(RGMII_TX_CTL__USB_H2_STROBE, 0x06BC, 0x02D4, 0 | IOMUX_CONFIG_SION, 0x0000, 0, PAD_CTL_PUS_47K_UP) MX6_PAD_DECL(RGMII_TX_CTL__RGMII_TX_CTL, 0x06BC, 0x02D4, 1, 0x0000, 0, 0) MX6_PAD_DECL(RGMII_TX_CTL__GPIO6_IO26, 0x06BC, 0x02D4, 5, 0x0000, 0, 0) -MX6_PAD_DECL(RGMII_TX_CTL__ENET_REF_CLK, 0x06BC, 0x02D4, 7, 0x080C, 1, 0) +MX6_PAD_DECL(RGMII_TX_CTL__ENET_REF_CLK, 0x06BC, 0x02D4, 7 | IOMUX_CONFIG_SION, 0x080C, 1, 0) MX6_PAD_DECL(RGMII_TXC__USB_H2_DATA, 0x06C0, 0x02D8, 0 | IOMUX_CONFIG_SION, 0x0000, 0, 0) MX6_PAD_DECL(RGMII_TXC__RGMII_TXC, 0x06C0, 0x02D8, 1, 0x0000, 0, 0) MX6_PAD_DECL(RGMII_TXC__SPDIF_EXT_CLK, 0x06C0, 0x02D8, 2, 0x08F4, 1, 0) diff --git a/arch/arm/include/asm/arch-mx6/mx6q_pins.h b/arch/arm/include/asm/arch-mx6/mx6q_pins.h index ad31c33..a8456a2 100644 --- a/arch/arm/include/asm/arch-mx6/mx6q_pins.h +++ b/arch/arm/include/asm/arch-mx6/mx6q_pins.h @@ -53,7 +53,7 @@ MX6_PAD_DECL(RGMII_RD0__GPIO6_IO25, 0x0384, 0x0070, 5, 0x0000, 0, 0) MX6_PAD_DECL(RGMII_TX_CTL__USB_H2_STROBE, 0x0388, 0x0074, 0, 0x0000, 0, 0) MX6_PAD_DECL(RGMII_TX_CTL__RGMII_TX_CTL, 0x0388, 0x0074, 1, 0x0000, 0, 0) MX6_PAD_DECL(RGMII_TX_CTL__GPIO6_IO26, 0x0388, 0x0074, 5, 0x0000, 0, 0) -MX6_PAD_DECL(RGMII_TX_CTL__ENET_REF_CLK, 0x0388, 0x0074, 7, 0x083C, 0, 0) +MX6_PAD_DECL(RGMII_TX_CTL__ENET_REF_CLK, 0x0388, 0x0074, 7 | IOMUX_CONFIG_SION, 0x083C, 0, 0) MX6_PAD_DECL(RGMII_RD1__HSI_TX_FLAG, 0x038C, 0x0078, 0, 0x0000, 0, 0) MX6_PAD_DECL(RGMII_RD1__RGMII_RD1, 0x038C, 0x0078, 1, 0x084C, 0, 0) MX6_PAD_DECL(RGMII_RD1__GPIO6_IO27, 0x038C, 0x0078, 5, 0x0000, 0, 0) @@ -523,7 +523,7 @@ MX6_PAD_DECL(ENET_MDIO__ESAI_RX_CLK, 0x04E4, 0x01D0, 2, 0x086C, 0, 0) MX6_PAD_DECL(ENET_MDIO__ENET_1588_EVENT1_OUT, 0x04E4, 0x01D0, 4, 0x0000, 0, 0) MX6_PAD_DECL(ENET_MDIO__GPIO1_IO22, 0x04E4, 0x01D0, 5, 0x0000, 0, 0) MX6_PAD_DECL(ENET_MDIO__SPDIF_LOCK, 0x04E4, 0x01D0, 6, 0x0000, 0, 0) -MX6_PAD_DECL(ENET_REF_CLK__ENET_TX_CLK, 0x04E8, 0x01D4, 1, 0x0000, 0, 0) +MX6_PAD_DECL(ENET_REF_CLK__ENET_TX_CLK, 0x04E8, 0x01D4, 1 | IOMUX_CONFIG_SION, 0x0000, 0, 0) MX6_PAD_DECL(ENET_REF_CLK__ESAI_RX_FS, 0x04E8, 0x01D4, 2, 0x085C, 0, 0) MX6_PAD_DECL(ENET_REF_CLK__GPIO1_IO23, 0x04E8, 0x01D4, 5, 0x0000, 0, 0) MX6_PAD_DECL(ENET_REF_CLK__SPDIF_SR_CLK, 0x04E8, 0x01D4, 6, 0x0000, 0, 0) @@ -703,7 +703,7 @@ MX6_PAD_DECL(GPIO_8__SPDIF_SR_CLK, 0x0614, 0x0244, 6, 0x0000, 0, 0) MX6_PAD_DECL(GPIO_8__USB_OTG_PWR_CTL_WAKE, 0x0614, 0x0244, 7, 0x0000, 0, 0) MX6_PAD_DECL(GPIO_16__ESAI_TX3_RX2, 0x0618, 0x0248, 0, 0x0880, 1, 0) MX6_PAD_DECL(GPIO_16__ENET_1588_EVENT2_IN, 0x0618, 0x0248, 1, 0x0000, 0, 0) -MX6_PAD_DECL(GPIO_16__ENET_REF_CLK, 0x0618, 0x0248, 2, 0x083C, 1, 0) +MX6_PAD_DECL(GPIO_16__ENET_REF_CLK, 0x0618, 0x0248, 2 | IOMUX_CONFIG_SION, 0x083C, 1, 0) MX6_PAD_DECL(GPIO_16__SD1_LCTL, 0x0618, 0x0248, 3, 0x0000, 0, 0) MX6_PAD_DECL(GPIO_16__SPDIF_IN, 0x0618, 0x0248, 4, 0x0914, 3, 0) MX6_PAD_DECL(GPIO_16__GPIO7_IO11, 0x0618, 0x0248, 5, 0x0000, 0, 0) -- cgit v1.1