diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv7/armada-xp/Makefile | 7 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/armada-xp/cpu.c | 193 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-armada-xp/config.h | 82 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-armada-xp/cpu.h | 107 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-armada-xp/soc.h | 57 |
5 files changed, 446 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/armada-xp/Makefile b/arch/arm/cpu/armv7/armada-xp/Makefile new file mode 100644 index 0000000..885dcee --- /dev/null +++ b/arch/arm/cpu/armv7/armada-xp/Makefile @@ -0,0 +1,7 @@ +# +# Copyright (C) 2014 Stefan Roese <sr@denx.de> +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y = cpu.o diff --git a/arch/arm/cpu/armv7/armada-xp/cpu.c b/arch/arm/cpu/armv7/armada-xp/cpu.c new file mode 100644 index 0000000..1cf70a9 --- /dev/null +++ b/arch/arm/cpu/armv7/armada-xp/cpu.c @@ -0,0 +1,193 @@ +/* + * Copyright (C) 2014 Stefan Roese <sr@denx.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <netdev.h> +#include <asm/io.h> +#include <asm/arch/cpu.h> +#include <asm/arch/soc.h> + +#define DDR_BASE_CS_OFF(n) (0x0000 + ((n) << 3)) +#define DDR_SIZE_CS_OFF(n) (0x0004 + ((n) << 3)) + +static struct mbus_win windows[] = { + /* PCIE MEM address space */ + { DEFADR_PCI_MEM, 256 << 20, CPU_TARGET_PCIE13, CPU_ATTR_PCIE_MEM }, + + /* PCIE IO address space */ + { DEFADR_PCI_IO, 64 << 10, CPU_TARGET_PCIE13, CPU_ATTR_PCIE_IO }, + + /* SPI */ + { DEFADR_SPIF, 8 << 20, CPU_TARGET_DEVICEBUS_BOOTROM_SPI, + CPU_ATTR_SPIFLASH }, + + /* NOR */ + { DEFADR_BOOTROM, 8 << 20, CPU_TARGET_DEVICEBUS_BOOTROM_SPI, + CPU_ATTR_BOOTROM }, +}; + +void reset_cpu(unsigned long ignored) +{ + struct mvebu_system_registers *reg = + (struct mvebu_system_registers *)MVEBU_SYSTEM_REG_BASE; + + writel(readl(®->rstoutn_mask) | 1, ®->rstoutn_mask); + writel(readl(®->sys_soft_rst) | 1, ®->sys_soft_rst); + while (1) + ; +} + +#if defined(CONFIG_DISPLAY_CPUINFO) +int print_cpuinfo(void) +{ + u16 devid = (readl(MVEBU_REG_PCIE_DEVID) >> 16) & 0xffff; + u8 revid = readl(MVEBU_REG_PCIE_REVID) & 0xff; + + puts("SoC: "); + + switch (devid) { + case SOC_MV78460_ID: + puts("MV78460-"); + break; + default: + puts("Unknown-"); + break; + } + + switch (revid) { + case 1: + puts("A0\n"); + break; + case 2: + puts("B0\n"); + break; + default: + puts("??\n"); + break; + } + + return 0; +} +#endif /* CONFIG_DISPLAY_CPUINFO */ + +/* + * This function initialize Controller DRAM Fastpath windows. + * It takes the CS size information from the 0x1500 scratch registers + * and sets the correct windows sizes and base addresses accordingly. + * + * These values are set in the scratch registers by the Marvell + * DDR3 training code, which is executed by the BootROM before the + * main payload (U-Boot) is executed. This training code is currently + * only available in the Marvell U-Boot version. It needs to be + * ported to mainline U-Boot SPL at some point. + */ +static void update_sdram_window_sizes(void) +{ + u64 base = 0; + u32 size, temp; + int i; + + for (i = 0; i < SDRAM_MAX_CS; i++) { + size = readl((MVEBU_SDRAM_SCRATCH + (i * 8))) & SDRAM_ADDR_MASK; + if (size != 0) { + size |= ~(SDRAM_ADDR_MASK); + + /* Set Base Address */ + temp = (base & 0xFF000000ll) | ((base >> 32) & 0xF); + writel(temp, MVEBU_SDRAM_BASE + DDR_BASE_CS_OFF(i)); + + /* + * Check if out of max window size and resize + * the window + */ + temp = (readl(MVEBU_SDRAM_BASE + DDR_SIZE_CS_OFF(i)) & + ~(SDRAM_ADDR_MASK)) | 1; + temp |= (size & SDRAM_ADDR_MASK); + writel(temp, MVEBU_SDRAM_BASE + DDR_SIZE_CS_OFF(i)); + + base += ((u64)size + 1); + } else { + /* + * Disable window if not used, otherwise this + * leads to overlapping enabled windows with + * pretty strange results + */ + clrbits_le32(MVEBU_SDRAM_BASE + DDR_SIZE_CS_OFF(i), 1); + } + } +} + +#ifdef CONFIG_ARCH_CPU_INIT +int arch_cpu_init(void) +{ + /* Linux expects the internal registers to be at 0xf1000000 */ + writel(SOC_REGS_PHY_BASE, INTREG_BASE_ADDR_REG); + + /* + * We need to call mvebu_mbus_probe() before calling + * update_sdram_window_sizes() as it disables all previously + * configured mbus windows and then configures them as + * required for U-Boot. Calling update_sdram_window_sizes() + * without this configuration will not work, as the internal + * registers can't be accessed reliably because of potenial + * double mapping. + * After updating the SDRAM access windows we need to call + * mvebu_mbus_probe() again, as this now correctly configures + * the SDRAM areas that are later used by the MVEBU drivers + * (e.g. USB, NETA). + */ + + /* + * First disable all windows + */ + mvebu_mbus_probe(NULL, 0); + + /* + * Now the SDRAM access windows can be reconfigured using + * the information in the SDRAM scratch pad registers + */ + update_sdram_window_sizes(); + + /* + * Finally the mbus windows can be configured with the + * updated SDRAM sizes + */ + mvebu_mbus_probe(windows, ARRAY_SIZE(windows)); + + return 0; +} +#endif /* CONFIG_ARCH_CPU_INIT */ + +/* + * SOC specific misc init + */ +#if defined(CONFIG_ARCH_MISC_INIT) +int arch_misc_init(void) +{ + /* Nothing yet, perhaps we need something here later */ + return 0; +} +#endif /* CONFIG_ARCH_MISC_INIT */ + +#ifdef CONFIG_MVNETA +int cpu_eth_init(bd_t *bis) +{ + mvneta_initialize(bis, MVEBU_EGIGA0_BASE, 0, CONFIG_PHY_BASE_ADDR + 0); + mvneta_initialize(bis, MVEBU_EGIGA1_BASE, 1, CONFIG_PHY_BASE_ADDR + 1); + mvneta_initialize(bis, MVEBU_EGIGA2_BASE, 2, CONFIG_PHY_BASE_ADDR + 2); + mvneta_initialize(bis, MVEBU_EGIGA3_BASE, 3, CONFIG_PHY_BASE_ADDR + 3); + + return 0; +} +#endif + +#ifndef CONFIG_SYS_DCACHE_OFF +void enable_caches(void) +{ + /* Enable D-cache. I-cache is already enabled in start.S */ + dcache_enable(); +} +#endif diff --git a/arch/arm/include/asm/arch-armada-xp/config.h b/arch/arm/include/asm/arch-armada-xp/config.h new file mode 100644 index 0000000..00ee775 --- /dev/null +++ b/arch/arm/include/asm/arch-armada-xp/config.h @@ -0,0 +1,82 @@ +/* + * (C) Copyright 2011 + * Marvell Semiconductor <www.marvell.com> + * Written-by: Lei Wen <leiwen@marvell.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +/* + * This file should be included in board config header file. + * + * It supports common definitions for Armada XP platforms + */ + +#ifndef _ARMADA_XP_CONFIG_H +#define _ARMADA_XP_CONFIG_H + +#include <asm/arch/soc.h> + +#define MV88F78X60 /* for the DDR training bin_hdr code */ + +#define CONFIG_SYS_CACHELINE_SIZE 32 + +/* + * By default kwbimage.cfg from board specific folder is used + * If for some board, different configuration file need to be used, + * CONFIG_SYS_KWD_CONFIG should be defined in board specific header file + */ +#ifndef CONFIG_SYS_KWD_CONFIG +#define CONFIG_SYS_KWD_CONFIG $(CONFIG_BOARDDIR)/kwbimage.cfg +#endif /* CONFIG_SYS_KWD_CONFIG */ + +/* Add target to build it automatically upon "make" */ +#define CONFIG_BUILD_TARGET "u-boot.kwb" + +/* end of 16M scrubbed by training in bootrom */ +#define CONFIG_SYS_INIT_SP_ADDR 0x00FF0000 +#define CONFIG_NR_DRAM_BANKS_MAX 2 + +#define MV_UART_CONSOLE_BASE MVEBU_UART0_BASE + +/* + * SPI Flash configuration + */ +#ifdef CONFIG_CMD_SF +#define CONFIG_HARD_SPI 1 +#define CONFIG_KIRKWOOD_SPI 1 +#ifndef CONFIG_ENV_SPI_BUS +# define CONFIG_ENV_SPI_BUS 0 +#endif +#ifndef CONFIG_ENV_SPI_CS +# define CONFIG_ENV_SPI_CS 0 +#endif +#ifndef CONFIG_ENV_SPI_MAX_HZ +# define CONFIG_ENV_SPI_MAX_HZ 50000000 +#endif +#endif + +/* + * Ethernet Driver configuration + */ +#ifdef CONFIG_CMD_NET +#define CONFIG_CMD_MII +#define CONFIG_MII /* expose smi ove miiphy interface */ +#define CONFIG_MVNETA /* Enable Marvell Gbe Controller Driver */ +#define CONFIG_PHYLIB +#define CONFIG_ENV_OVERWRITE /* ethaddr can be reprogrammed */ +#define CONFIG_PHY_GIGE /* GbE speed/duplex detect */ +#endif /* CONFIG_CMD_NET */ + +/* + * I2C related stuff + */ +#ifdef CONFIG_CMD_I2C +#ifndef CONFIG_SYS_I2C_SOFT +#define CONFIG_I2C_MVTWSI +#endif +#define CONFIG_SYS_I2C_SLAVE 0x0 +#define CONFIG_SYS_I2C_SPEED 100000 +#endif + +#endif /* _ARMADA_XP_CONFIG_H */ diff --git a/arch/arm/include/asm/arch-armada-xp/cpu.h b/arch/arm/include/asm/arch-armada-xp/cpu.h new file mode 100644 index 0000000..6b60c21 --- /dev/null +++ b/arch/arm/include/asm/arch-armada-xp/cpu.h @@ -0,0 +1,107 @@ +/* + * (C) Copyright 2009 + * Marvell Semiconductor <www.marvell.com> + * Written-by: Prafulla Wadaskar <prafulla@marvell.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _ARMADA_XP_CPU_H +#define _ARMADA_XP_CPU_H + +#include <asm/system.h> + +#ifndef __ASSEMBLY__ + +#define MVEBU_REG_PCIE_DEVID (MVEBU_REG_PCIE_BASE + 0x00) +#define MVEBU_REG_PCIE_REVID (MVEBU_REG_PCIE_BASE + 0x08) + +enum memory_bank { + BANK0, + BANK1, + BANK2, + BANK3 +}; + +enum cpu_winen { + CPU_WIN_DISABLE, + CPU_WIN_ENABLE +}; + +enum cpu_target { + CPU_TARGET_DRAM = 0x0, + CPU_TARGET_DEVICEBUS_BOOTROM_SPI = 0x1, + CPU_TARGET_ETH23 = 0x3, + CPU_TARGET_PCIE02 = 0x4, + CPU_TARGET_ETH01 = 0x7, + CPU_TARGET_PCIE13 = 0x8, + CPU_TARGET_SASRAM = 0x9, + CPU_TARGET_NAND = 0xd, +}; + +enum cpu_attrib { + CPU_ATTR_SASRAM = 0x01, + CPU_ATTR_DRAM_CS0 = 0x0e, + CPU_ATTR_DRAM_CS1 = 0x0d, + CPU_ATTR_DRAM_CS2 = 0x0b, + CPU_ATTR_DRAM_CS3 = 0x07, + CPU_ATTR_NANDFLASH = 0x2f, + CPU_ATTR_SPIFLASH = 0x1e, + CPU_ATTR_BOOTROM = 0x1d, + CPU_ATTR_PCIE_IO = 0xe0, + CPU_ATTR_PCIE_MEM = 0xe8, + CPU_ATTR_DEV_CS0 = 0x3e, + CPU_ATTR_DEV_CS1 = 0x3d, + CPU_ATTR_DEV_CS2 = 0x3b, + CPU_ATTR_DEV_CS3 = 0x37, +}; + +/* + * Default Device Address MAP BAR values + */ +#define DEFADR_PCI_MEM 0x90000000 +#define DEFADR_PCI_IO 0xC0000000 +#define DEFADR_SPIF 0xF4000000 +#define DEFADR_BOOTROM 0xF8000000 + +struct mbus_win { + u32 base; + u32 size; + u8 target; + u8 attr; +}; + +/* + * System registers + * Ref: Datasheet sec:A.28 + */ +struct mvebu_system_registers { + u8 pad1[0x60]; + u32 rstoutn_mask; /* 0x60 */ + u32 sys_soft_rst; /* 0x64 */ +}; + +/* + * GPIO Registers + * Ref: Datasheet sec:A.19 + */ +struct kwgpio_registers { + u32 dout; + u32 oe; + u32 blink_en; + u32 din_pol; + u32 din; + u32 irq_cause; + u32 irq_mask; + u32 irq_level; +}; + +/* + * functions + */ +unsigned int mvebu_sdram_bar(enum memory_bank bank); +unsigned int mvebu_sdram_bs(enum memory_bank bank); +void mvebu_sdram_size_adjust(enum memory_bank bank); +int mvebu_mbus_probe(struct mbus_win windows[], int count); +#endif /* __ASSEMBLY__ */ +#endif /* _ARMADA_XP_CPU_H */ diff --git a/arch/arm/include/asm/arch-armada-xp/soc.h b/arch/arm/include/asm/arch-armada-xp/soc.h new file mode 100644 index 0000000..963e7ac --- /dev/null +++ b/arch/arm/include/asm/arch-armada-xp/soc.h @@ -0,0 +1,57 @@ +/* + * (C) Copyright 2009 + * Marvell Semiconductor <www.marvell.com> + * Written-by: Prafulla Wadaskar <prafulla@marvell.com> + * + * Header file for the Marvell's Feroceon CPU core. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _ASM_ARCH_ARMADA_XP_H +#define _ASM_ARCH_ARMADA_XP_H + +#define SOC_MV78460_ID 0x7846 + +/* TCLK Core Clock definition */ +#ifndef CONFIG_SYS_TCLK +#define CONFIG_SYS_TCLK 250000000 /* 250MHz */ +#endif + +/* SOC specific definations */ +#define INTREG_BASE 0xd0000000 +#define INTREG_BASE_ADDR_REG (INTREG_BASE + 0x20080) +#define SOC_REGS_PHY_BASE 0xf1000000 +#define MVEBU_REGISTER(x) (SOC_REGS_PHY_BASE + x) + +#define MVEBU_SDRAM_SCRATCH (MVEBU_REGISTER(0x01504)) +#define MVEBU_SPI_BASE (MVEBU_REGISTER(0x10600)) +#define MVEBU_TWSI_BASE (MVEBU_REGISTER(0x11000)) +#define MVEBU_UART0_BASE (MVEBU_REGISTER(0x12000)) +#define MVEBU_UART1_BASE (MVEBU_REGISTER(0x12100)) +#define MVEBU_MPP_BASE (MVEBU_REGISTER(0x18000)) +#define MVEBU_GPIO0_BASE (MVEBU_REGISTER(0x18100)) +#define MVEBU_GPIO1_BASE (MVEBU_REGISTER(0x18140)) +#define MVEBU_GPIO2_BASE (MVEBU_REGISTER(0x18180)) +#define MVEBU_SYSTEM_REG_BASE (MVEBU_REGISTER(0x18200)) +#define MVEBU_CPU_WIN_BASE (MVEBU_REGISTER(0x20000)) +#define MVEBU_SDRAM_BASE (MVEBU_REGISTER(0x20180)) +#define MVEBU_TIMER_BASE (MVEBU_REGISTER(0x20300)) +#define MVEBU_EGIGA2_BASE (MVEBU_REGISTER(0x30000)) +#define MVEBU_EGIGA3_BASE (MVEBU_REGISTER(0x34000)) +#define MVEBU_REG_PCIE_BASE (MVEBU_REGISTER(0x40000)) +#define MVEBU_EGIGA0_BASE (MVEBU_REGISTER(0x70000)) +#define MVEBU_EGIGA1_BASE (MVEBU_REGISTER(0x74000)) + +#define SDRAM_MAX_CS 4 +#define SDRAM_ADDR_MASK 0xFF000000 + +/* Armada XP GbE controller has 4 ports */ +#define MAX_MVNETA_DEVS 4 + +/* Kirkwood CPU memory windows */ +#define MVCPU_WIN_CTRL_DATA CPU_WIN_CTRL_DATA +#define MVCPU_WIN_ENABLE CPU_WIN_ENABLE +#define MVCPU_WIN_DISABLE CPU_WIN_DISABLE + +#endif /* _ASM_ARCH_ARMADA_XP_H */ |