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-rw-r--r--arch/arm/cpu/armv7/rmobile/Kconfig22
-rw-r--r--arch/arm/cpu/armv7/sunxi/Makefile6
-rw-r--r--arch/arm/cpu/armv7/sunxi/board.c18
-rw-r--r--arch/arm/cpu/armv7/sunxi/cpu_info.c11
-rw-r--r--arch/arm/cpu/armv7/sunxi/psci_sun6i.S280
-rw-r--r--arch/arm/cpu/armv7/sunxi/psci_sun7i.S (renamed from arch/arm/cpu/armv7/sunxi/psci.S)14
-rw-r--r--arch/arm/cpu/armv7/sunxi/usb_phy.c6
-rw-r--r--arch/arm/cpu/armv7m/Makefile1
-rw-r--r--arch/arm/cpu/armv7m/stm32f1/Makefile14
-rw-r--r--arch/arm/cpu/armv7m/stm32f1/clock.c196
-rw-r--r--arch/arm/cpu/armv7m/stm32f1/flash.c180
-rw-r--r--arch/arm/cpu/armv7m/stm32f1/soc.c36
-rw-r--r--arch/arm/cpu/armv7m/stm32f1/timer.c121
13 files changed, 883 insertions, 22 deletions
diff --git a/arch/arm/cpu/armv7/rmobile/Kconfig b/arch/arm/cpu/armv7/rmobile/Kconfig
index ae23078..ef56286 100644
--- a/arch/arm/cpu/armv7/rmobile/Kconfig
+++ b/arch/arm/cpu/armv7/rmobile/Kconfig
@@ -50,6 +50,28 @@ config RMOBILE_EXTRAM_BOOT
depends on TARGET_ALT || TARGET_KOELSCH || TARGET_LAGER || TARGET_PORTER || TARGET_SILK
default n
+choice
+ prompt "Qos setting primary"
+ depends on TARGET_ALT || TARGET_GOSE || TARGET_KOELSCH || TARGET_LAGER
+ default QOS_PRI_NORMAL
+
+config QOS_PRI_NORMAL
+ bool "Non primary"
+ help
+ Select normal mode for QoS setting.
+
+config QOS_PRI_MEDIA
+ bool "Media primary"
+ help
+ Select multimedia primary mode for QoS setting.
+
+config QOS_PRI_GFX
+ bool "GFX primary"
+ help
+ Select GFX(graphics) primary mode for QoS setting.
+
+endchoice
+
source "board/atmark-techno/armadillo-800eva/Kconfig"
source "board/renesas/gose/Kconfig"
source "board/renesas/koelsch/Kconfig"
diff --git a/arch/arm/cpu/armv7/sunxi/Makefile b/arch/arm/cpu/armv7/sunxi/Makefile
index 6a0299f..76c7e55 100644
--- a/arch/arm/cpu/armv7/sunxi/Makefile
+++ b/arch/arm/cpu/armv7/sunxi/Makefile
@@ -13,7 +13,9 @@ obj-y += clock.o
obj-y += cpu_info.o
obj-y += dram_helpers.o
obj-y += pinmux.o
+ifndef CONFIG_MACH_SUN9I
obj-y += usb_phy.o
+endif
obj-$(CONFIG_MACH_SUN6I) += prcm.o
obj-$(CONFIG_MACH_SUN8I) += prcm.o
obj-$(CONFIG_MACH_SUN9I) += prcm.o
@@ -33,7 +35,9 @@ obj-$(CONFIG_AXP221_POWER) += pmic_bus.o
ifndef CONFIG_SPL_BUILD
ifdef CONFIG_ARMV7_PSCI
-obj-y += psci.o
+obj-$(CONFIG_MACH_SUN6I) += psci_sun6i.o
+obj-$(CONFIG_MACH_SUN7I) += psci_sun7i.o
+obj-$(CONFIG_MACH_SUN8I) += psci_sun6i.o
endif
endif
diff --git a/arch/arm/cpu/armv7/sunxi/board.c b/arch/arm/cpu/armv7/sunxi/board.c
index e6730c0..a82c8b9 100644
--- a/arch/arm/cpu/armv7/sunxi/board.c
+++ b/arch/arm/cpu/armv7/sunxi/board.c
@@ -64,6 +64,10 @@ static int gpio_init(void)
sunxi_gpio_set_cfgpin(SUNXI_GPH(20), SUN6I_GPH_UART0);
sunxi_gpio_set_cfgpin(SUNXI_GPH(21), SUN6I_GPH_UART0);
sunxi_gpio_set_pull(SUNXI_GPH(21), SUNXI_GPIO_PULL_UP);
+#elif CONFIG_CONS_INDEX == 1 && defined(CONFIG_MACH_SUN9I)
+ sunxi_gpio_set_cfgpin(SUNXI_GPH(12), SUN9I_GPH_UART0);
+ sunxi_gpio_set_cfgpin(SUNXI_GPH(13), SUN9I_GPH_UART0);
+ sunxi_gpio_set_pull(SUNXI_GPH(13), SUNXI_GPIO_PULL_UP);
#elif CONFIG_CONS_INDEX == 2 && defined(CONFIG_MACH_SUN5I)
sunxi_gpio_set_cfgpin(SUNXI_GPG(3), SUN5I_GPG_UART1);
sunxi_gpio_set_cfgpin(SUNXI_GPG(4), SUN5I_GPG_UART1);
@@ -115,17 +119,19 @@ void s_init(void)
#ifdef CONFIG_SPL_BUILD
/* The sunxi internal brom will try to loader external bootloader
* from mmc0, nand flash, mmc2.
- * Unfortunately we can't check how SPL was loaded so assume
- * it's always the first SD/MMC controller
+ *
+ * Unfortunately we can't check how SPL was loaded so assume it's
+ * always the first SD/MMC controller, unless it was explicitly
+ * stated that SPL is on nand flash.
*/
u32 spl_boot_device(void)
{
-#ifdef CONFIG_SPL_FEL
+#if defined(CONFIG_SPL_NAND_SUPPORT)
/*
- * This is the legacy compile time configuration for a special FEL
- * enabled build. It has many restrictions and can only boot over USB.
+ * This is compile time configuration informing SPL, that it
+ * was loaded from nand flash.
*/
- return BOOT_DEVICE_BOARD;
+ return BOOT_DEVICE_NAND;
#else
/*
* When booting from the SD card, the "eGON.BT0" signature is expected
diff --git a/arch/arm/cpu/armv7/sunxi/cpu_info.c b/arch/arm/cpu/armv7/sunxi/cpu_info.c
index 30ec4ac..a276fad 100644
--- a/arch/arm/cpu/armv7/sunxi/cpu_info.c
+++ b/arch/arm/cpu/armv7/sunxi/cpu_info.c
@@ -11,6 +11,7 @@
#include <asm/arch/cpu.h>
#include <asm/arch/clock.h>
#include <axp221.h>
+#include <errno.h>
#ifdef CONFIG_MACH_SUN6I
int sunxi_get_ss_bonding_id(void)
@@ -68,6 +69,8 @@ int print_cpuinfo(void)
puts("CPU: Allwinner A23 (SUN8I)\n");
#elif defined CONFIG_MACH_SUN8I_A33
puts("CPU: Allwinner A33 (SUN8I)\n");
+#elif defined CONFIG_MACH_SUN9I
+ puts("CPU: Allwinner A80 (SUN9I)\n");
#else
#warning Please update cpu_info.c with correct CPU information
puts("CPU: SUNXI Family\n");
@@ -78,18 +81,16 @@ int print_cpuinfo(void)
int sunxi_get_sid(unsigned int *sid)
{
-#if defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I_A23
#ifdef CONFIG_AXP221_POWER
return axp221_get_sid(sid);
-#else
- return -ENODEV;
-#endif
-#else
+#elif defined SUNXI_SID_BASE
int i;
for (i = 0; i< 4; i++)
sid[i] = readl(SUNXI_SID_BASE + 4 * i);
return 0;
+#else
+ return -ENODEV;
#endif
}
diff --git a/arch/arm/cpu/armv7/sunxi/psci_sun6i.S b/arch/arm/cpu/armv7/sunxi/psci_sun6i.S
new file mode 100644
index 0000000..d4cb51e
--- /dev/null
+++ b/arch/arm/cpu/armv7/sunxi/psci_sun6i.S
@@ -0,0 +1,280 @@
+/*
+ * Copyright (C) 2015 - Chen-Yu Tsai
+ * Author: Chen-Yu Tsai <wens@csie.org>
+ *
+ * Based on psci_sun7i.S by Marc Zyngier <marc.zyngier@arm.com>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <asm/gic.h>
+#include <asm/macro.h>
+#include <asm/psci.h>
+#include <asm/arch/cpu.h>
+
+/*
+ * Memory layout:
+ *
+ * SECURE_RAM to text_end :
+ * ._secure_text section
+ * text_end to ALIGN_PAGE(text_end):
+ * nothing
+ * ALIGN_PAGE(text_end) to ALIGN_PAGE(text_end) + 0x1000)
+ * 1kB of stack per CPU (4 CPUs max).
+ */
+
+ .pushsection ._secure.text, "ax"
+
+ .arch_extension sec
+
+#define ONE_MS (CONFIG_TIMER_CLK_FREQ / 1000)
+#define TEN_MS (10 * ONE_MS)
+#define GICD_BASE 0x1c81000
+#define GICC_BASE 0x1c82000
+
+.macro timer_wait reg, ticks
+ @ Program CNTP_TVAL
+ movw \reg, #(\ticks & 0xffff)
+ movt \reg, #(\ticks >> 16)
+ mcr p15, 0, \reg, c14, c2, 0
+ isb
+ @ Enable physical timer, mask interrupt
+ mov \reg, #3
+ mcr p15, 0, \reg, c14, c2, 1
+ @ Poll physical timer until ISTATUS is on
+1: isb
+ mrc p15, 0, \reg, c14, c2, 1
+ ands \reg, \reg, #4
+ bne 1b
+ @ Disable timer
+ mov \reg, #0
+ mcr p15, 0, \reg, c14, c2, 1
+ isb
+.endm
+
+.globl psci_fiq_enter
+psci_fiq_enter:
+ push {r0-r12}
+
+ @ Switch to secure
+ mrc p15, 0, r7, c1, c1, 0
+ bic r8, r7, #1
+ mcr p15, 0, r8, c1, c1, 0
+ isb
+
+ @ Validate reason based on IAR and acknowledge
+ movw r8, #(GICC_BASE & 0xffff)
+ movt r8, #(GICC_BASE >> 16)
+ ldr r9, [r8, #GICC_IAR]
+ movw r10, #0x3ff
+ movt r10, #0
+ cmp r9, r10 @ skip spurious interrupt 1023
+ beq out
+ movw r10, #0x3fe @ ...and 1022
+ cmp r9, r10
+ beq out
+ str r9, [r8, #GICC_EOIR] @ acknowledge the interrupt
+ dsb
+
+ @ Compute CPU number
+ lsr r9, r9, #10
+ and r9, r9, #0xf
+
+ movw r8, #(SUN6I_CPUCFG_BASE & 0xffff)
+ movt r8, #(SUN6I_CPUCFG_BASE >> 16)
+
+ @ Wait for the core to enter WFI
+ lsl r11, r9, #6 @ x64
+ add r11, r11, r8
+
+1: ldr r10, [r11, #0x48]
+ tst r10, #(1 << 2)
+ bne 2f
+ timer_wait r10, ONE_MS
+ b 1b
+
+ @ Reset CPU
+2: mov r10, #0
+ str r10, [r11, #0x40]
+
+ @ Lock CPU
+ mov r10, #1
+ lsl r11, r10, r9 @ r11 is now CPU mask
+ ldr r10, [r8, #0x1e4]
+ bic r10, r10, r11
+ str r10, [r8, #0x1e4]
+
+ movw r8, #(SUNXI_PRCM_BASE & 0xffff)
+ movt r8, #(SUNXI_PRCM_BASE >> 16)
+
+ @ Set power gating
+ ldr r10, [r8, #0x100]
+ orr r10, r10, r11
+ str r10, [r8, #0x100]
+ timer_wait r10, ONE_MS
+
+#ifdef CONFIG_MACH_SUN6I
+ @ Activate power clamp
+ lsl r12, r9, #2 @ x4
+ add r12, r12, r8
+ mov r10, #0xff
+ str r10, [r12, #0x140]
+#endif
+
+ movw r8, #(SUN6I_CPUCFG_BASE & 0xffff)
+ movt r8, #(SUN6I_CPUCFG_BASE >> 16)
+
+ @ Unlock CPU
+ ldr r10, [r8, #0x1e4]
+ orr r10, r10, r11
+ str r10, [r8, #0x1e4]
+
+ @ Restore security level
+out: mcr p15, 0, r7, c1, c1, 0
+
+ pop {r0-r12}
+ subs pc, lr, #4
+
+ @ r1 = target CPU
+ @ r2 = target PC
+.globl psci_cpu_on
+psci_cpu_on:
+ push {lr}
+
+ mov r0, r1
+ bl psci_get_cpu_stack_top @ get stack top of target CPU
+ str r2, [r0] @ store target PC at stack top
+ dsb
+
+ movw r0, #(SUN6I_CPUCFG_BASE & 0xffff)
+ movt r0, #(SUN6I_CPUCFG_BASE >> 16)
+
+ @ CPU mask
+ and r1, r1, #3 @ only care about first cluster
+ mov r4, #1
+ lsl r4, r4, r1
+
+ ldr r6, =psci_cpu_entry
+ str r6, [r0, #0x1a4] @ PRIVATE_REG (boot vector)
+
+ @ Assert reset on target CPU
+ mov r6, #0
+ lsl r5, r1, #6 @ 64 bytes per CPU
+ add r5, r5, #0x40 @ Offset from base
+ add r5, r5, r0 @ CPU control block
+ str r6, [r5] @ Reset CPU
+
+ @ l1 invalidate
+ ldr r6, [r0, #0x184] @ CPUCFG_GEN_CTRL_REG
+ bic r6, r6, r4
+ str r6, [r0, #0x184]
+
+ @ Lock CPU (Disable external debug access)
+ ldr r6, [r0, #0x1e4] @ CPUCFG_DBG_CTL1_REG
+ bic r6, r6, r4
+ str r6, [r0, #0x1e4]
+
+ movw r0, #(SUNXI_PRCM_BASE & 0xffff)
+ movt r0, #(SUNXI_PRCM_BASE >> 16)
+
+#ifdef CONFIG_MACH_SUN6I
+ @ Release power clamp
+ lsl r5, r1, #2 @ 1 register per CPU
+ add r5, r5, r0 @ PRCM
+ movw r6, #0x1ff
+ movt r6, #0
+1: lsrs r6, r6, #1
+ str r6, [r5, #0x140] @ CPUx_PWR_CLAMP
+ bne 1b
+#endif
+
+ timer_wait r6, TEN_MS
+
+ @ Clear power gating
+ ldr r6, [r0, #0x100] @ CPU_PWROFF_GATING
+ bic r6, r6, r4
+ str r6, [r0, #0x100]
+
+ @ re-calculate CPU control register address
+ movw r0, #(SUN6I_CPUCFG_BASE & 0xffff)
+ movt r0, #(SUN6I_CPUCFG_BASE >> 16)
+
+ @ Deassert reset on target CPU
+ mov r6, #3
+ lsl r5, r1, #6 @ 64 bytes per CPU
+ add r5, r5, #0x40 @ Offset from base
+ add r5, r5, r0 @ CPU control block
+ str r6, [r5]
+
+ @ Unlock CPU (Enable external debug access)
+ ldr r6, [r0, #0x1e4] @ CPUCFG_DBG_CTL1_REG
+ orr r6, r6, r4
+ str r6, [r0, #0x1e4]
+
+ mov r0, #ARM_PSCI_RET_SUCCESS @ Return PSCI_RET_SUCCESS
+ pop {pc}
+
+.globl psci_cpu_off
+psci_cpu_off:
+ bl psci_cpu_off_common
+
+ @ Ask CPU0 to pull the rug...
+ movw r0, #(GICD_BASE & 0xffff)
+ movt r0, #(GICD_BASE >> 16)
+ movw r1, #15 @ SGI15
+ movt r1, #1 @ Target is CPU0
+ str r1, [r0, #GICD_SGIR]
+ dsb
+
+1: wfi
+ b 1b
+
+.globl psci_arch_init
+psci_arch_init:
+ mov r6, lr
+
+ movw r4, #(GICD_BASE & 0xffff)
+ movt r4, #(GICD_BASE >> 16)
+
+ ldr r5, [r4, #GICD_IGROUPRn]
+ bic r5, r5, #(1 << 15) @ SGI15 as Group-0
+ str r5, [r4, #GICD_IGROUPRn]
+
+ mov r5, #0 @ Set SGI15 priority to 0
+ strb r5, [r4, #(GICD_IPRIORITYRn + 15)]
+
+ add r4, r4, #0x1000 @ GICC address
+
+ mov r5, #0xff
+ str r5, [r4, #GICC_PMR] @ Be cool with non-secure
+
+ ldr r5, [r4, #GICC_CTLR]
+ orr r5, r5, #(1 << 3) @ Switch FIQEn on
+ str r5, [r4, #GICC_CTLR]
+
+ mrc p15, 0, r5, c1, c1, 0 @ Read SCR
+ orr r5, r5, #4 @ Enable FIQ in monitor mode
+ bic r5, r5, #1 @ Secure mode
+ mcr p15, 0, r5, c1, c1, 0 @ Write SCR
+ isb
+
+ bl psci_get_cpu_id @ CPU ID => r0
+ bl psci_get_cpu_stack_top @ stack top => r0
+ mov sp, r0
+
+ bx r6
+
+ .globl psci_text_end
+psci_text_end:
+ .popsection
diff --git a/arch/arm/cpu/armv7/sunxi/psci.S b/arch/arm/cpu/armv7/sunxi/psci_sun7i.S
index 7ec0500..bbfeec8 100644
--- a/arch/arm/cpu/armv7/sunxi/psci.S
+++ b/arch/arm/cpu/armv7/sunxi/psci_sun7i.S
@@ -165,12 +165,12 @@ psci_cpu_on:
str r6, [r5] @ Reset CPU
@ l1 invalidate
- ldr r6, [r0, #0x184]
+ ldr r6, [r0, #0x184] @ CPUCFG_GEN_CTRL_REG
bic r6, r6, r4
str r6, [r0, #0x184]
- @ Lock CPU
- ldr r6, [r0, #0x1e4]
+ @ Lock CPU (Disable external debug access)
+ ldr r6, [r0, #0x1e4] @ CPUCFG_DBG_CTL1_REG
bic r6, r6, r4
str r6, [r0, #0x1e4]
@@ -178,13 +178,13 @@ psci_cpu_on:
movw r6, #0x1ff
movt r6, #0
1: lsrs r6, r6, #1
- str r6, [r0, #0x1b0]
+ str r6, [r0, #0x1b0] @ CPU1_PWR_CLAMP
bne 1b
timer_wait r1, TEN_MS
@ Clear power gating
- ldr r6, [r0, #0x1b4]
+ ldr r6, [r0, #0x1b4] @ CPU1_PWROFF_REG
bic r6, r6, #1
str r6, [r0, #0x1b4]
@@ -192,8 +192,8 @@ psci_cpu_on:
mov r6, #3
str r6, [r5]
- @ Unlock CPU
- ldr r6, [r0, #0x1e4]
+ @ Unlock CPU (Enable external debug access)
+ ldr r6, [r0, #0x1e4] @ CPUCFG_DBG_CTL1_REG
orr r6, r6, r4
str r6, [r0, #0x1e4]
diff --git a/arch/arm/cpu/armv7/sunxi/usb_phy.c b/arch/arm/cpu/armv7/sunxi/usb_phy.c
index 410669e..b07d67f 100644
--- a/arch/arm/cpu/armv7/sunxi/usb_phy.c
+++ b/arch/arm/cpu/armv7/sunxi/usb_phy.c
@@ -128,10 +128,10 @@ static void sunxi_usb_phy_config(struct sunxi_usb_phy *phy)
usb_phy_write(phy, 0x20, 0x14, 5);
/* threshold adjustment disconnect */
-#if defined CONFIG_MACH_SUN4I || defined CONFIG_MACH_SUN6I
- usb_phy_write(phy, 0x2a, 3, 2);
-#else
+#if defined CONFIG_MACH_SUN5I || defined CONFIG_MACH_SUN7I
usb_phy_write(phy, 0x2a, 2, 2);
+#else
+ usb_phy_write(phy, 0x2a, 3, 2);
#endif
return;
diff --git a/arch/arm/cpu/armv7m/Makefile b/arch/arm/cpu/armv7m/Makefile
index b662e03..93a1956 100644
--- a/arch/arm/cpu/armv7m/Makefile
+++ b/arch/arm/cpu/armv7m/Makefile
@@ -8,4 +8,5 @@
extra-y := start.o
obj-y += cpu.o
+obj-$(CONFIG_STM32F1) += stm32f1/
obj-$(CONFIG_STM32F4) += stm32f4/
diff --git a/arch/arm/cpu/armv7m/stm32f1/Makefile b/arch/arm/cpu/armv7m/stm32f1/Makefile
new file mode 100644
index 0000000..4faf435
--- /dev/null
+++ b/arch/arm/cpu/armv7m/stm32f1/Makefile
@@ -0,0 +1,14 @@
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# (C) Copyright 2015
+# Kamil Lulko, <rev13@wp.pl>
+#
+# Copyright 2015 ATS Advanced Telematics Systems GmbH
+# Copyright 2015 Konsulko Group, Matt Porter <mporter@konsulko.com>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y += soc.o clock.o timer.o flash.o
diff --git a/arch/arm/cpu/armv7m/stm32f1/clock.c b/arch/arm/cpu/armv7m/stm32f1/clock.c
new file mode 100644
index 0000000..acad116
--- /dev/null
+++ b/arch/arm/cpu/armv7m/stm32f1/clock.c
@@ -0,0 +1,196 @@
+/*
+ * (C) Copyright 2015
+ * Kamil Lulko, <rev13@wp.pl>
+ *
+ * Copyright 2015 ATS Advanced Telematics Systems GmbH
+ * Copyright 2015 Konsulko Group, Matt Porter <mporter@konsulko.com>
+ *
+ * (C) Copyright 2014
+ * STMicroelectronics
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/stm32.h>
+
+#define RCC_CR_HSION (1 << 0)
+#define RCC_CR_HSEON (1 << 16)
+#define RCC_CR_HSERDY (1 << 17)
+#define RCC_CR_HSEBYP (1 << 18)
+#define RCC_CR_CSSON (1 << 19)
+#define RCC_CR_PLLON (1 << 24)
+#define RCC_CR_PLLRDY (1 << 25)
+
+#define RCC_CFGR_PLLMUL_MASK 0x3C0000
+#define RCC_CFGR_PLLMUL_SHIFT 18
+#define RCC_CFGR_PLLSRC_HSE (1 << 16)
+
+#define RCC_CFGR_AHB_PSC_MASK 0xF0
+#define RCC_CFGR_APB1_PSC_MASK 0x700
+#define RCC_CFGR_APB2_PSC_MASK 0x3800
+#define RCC_CFGR_SW0 (1 << 0)
+#define RCC_CFGR_SW1 (1 << 1)
+#define RCC_CFGR_SW_MASK 0x3
+#define RCC_CFGR_SW_HSI 0
+#define RCC_CFGR_SW_HSE RCC_CFGR_SW0
+#define RCC_CFGR_SW_PLL RCC_CFGR_SW1
+#define RCC_CFGR_SWS0 (1 << 2)
+#define RCC_CFGR_SWS1 (1 << 3)
+#define RCC_CFGR_SWS_MASK 0xC
+#define RCC_CFGR_SWS_HSI 0
+#define RCC_CFGR_SWS_HSE RCC_CFGR_SWS0
+#define RCC_CFGR_SWS_PLL RCC_CFGR_SWS1
+#define RCC_CFGR_HPRE_SHIFT 4
+#define RCC_CFGR_PPRE1_SHIFT 8
+#define RCC_CFGR_PPRE2_SHIFT 11
+
+#define RCC_APB1ENR_PWREN (1 << 28)
+
+#define PWR_CR_VOS0 (1 << 14)
+#define PWR_CR_VOS1 (1 << 15)
+#define PWR_CR_VOS_MASK 0xC000
+#define PWR_CR_VOS_SCALE_MODE_1 (PWR_CR_VOS0 | PWR_CR_VOS1)
+#define PWR_CR_VOS_SCALE_MODE_2 (PWR_CR_VOS1)
+#define PWR_CR_VOS_SCALE_MODE_3 (PWR_CR_VOS0)
+
+#define FLASH_ACR_WS(n) n
+#define FLASH_ACR_PRFTEN (1 << 8)
+#define FLASH_ACR_ICEN (1 << 9)
+#define FLASH_ACR_DCEN (1 << 10)
+
+struct psc {
+ u8 ahb_psc;
+ u8 apb1_psc;
+ u8 apb2_psc;
+};
+
+#define AHB_PSC_1 0
+#define AHB_PSC_2 0x8
+#define AHB_PSC_4 0x9
+#define AHB_PSC_8 0xA
+#define AHB_PSC_16 0xB
+#define AHB_PSC_64 0xC
+#define AHB_PSC_128 0xD
+#define AHB_PSC_256 0xE
+#define AHB_PSC_512 0xF
+
+#define APB_PSC_1 0
+#define APB_PSC_2 0x4
+#define APB_PSC_4 0x5
+#define APB_PSC_8 0x6
+#define APB_PSC_16 0x7
+
+#if !defined(CONFIG_STM32_HSE_HZ)
+#error "CONFIG_STM32_HSE_HZ not defined!"
+#else
+#if (CONFIG_STM32_HSE_HZ == 8000000)
+#define RCC_CFGR_PLLMUL_CFG 0x7
+struct psc psc_hse = {
+ .ahb_psc = AHB_PSC_1,
+ .apb1_psc = APB_PSC_2,
+ .apb2_psc = APB_PSC_1
+};
+#else
+#error "No PLL/Prescaler configuration for given CONFIG_STM32_HSE_HZ exists"
+#endif
+#endif
+
+int configure_clocks(void)
+{
+ /* Reset RCC configuration */
+ setbits_le32(&STM32_RCC->cr, RCC_CR_HSION);
+ writel(0, &STM32_RCC->cfgr); /* Reset CFGR */
+ clrbits_le32(&STM32_RCC->cr, (RCC_CR_HSEON | RCC_CR_CSSON
+ | RCC_CR_PLLON));
+ clrbits_le32(&STM32_RCC->cr, RCC_CR_HSEBYP);
+ writel(0, &STM32_RCC->cir); /* Disable all interrupts */
+
+ /* Configure for HSE+PLL operation */
+ setbits_le32(&STM32_RCC->cr, RCC_CR_HSEON);
+ while (!(readl(&STM32_RCC->cr) & RCC_CR_HSERDY))
+ ;
+
+ /* Enable high performance mode, System frequency up to 168 MHz */
+ setbits_le32(&STM32_RCC->apb1enr, RCC_APB1ENR_PWREN);
+ writel(PWR_CR_VOS_SCALE_MODE_1, &STM32_PWR->cr);
+
+ setbits_le32(&STM32_RCC->cfgr,
+ RCC_CFGR_PLLMUL_CFG << RCC_CFGR_PLLMUL_SHIFT);
+ setbits_le32(&STM32_RCC->cfgr, RCC_CFGR_PLLSRC_HSE);
+ setbits_le32(&STM32_RCC->cfgr, ((
+ psc_hse.ahb_psc << RCC_CFGR_HPRE_SHIFT)
+ | (psc_hse.apb1_psc << RCC_CFGR_PPRE1_SHIFT)
+ | (psc_hse.apb2_psc << RCC_CFGR_PPRE2_SHIFT)));
+
+ setbits_le32(&STM32_RCC->cr, RCC_CR_PLLON);
+
+ while (!(readl(&STM32_RCC->cr) & RCC_CR_PLLRDY))
+ ;
+
+ /* 5 wait states, Prefetch enabled, D-Cache enabled, I-Cache enabled */
+ writel(FLASH_ACR_WS(5) | FLASH_ACR_PRFTEN | FLASH_ACR_ICEN
+ | FLASH_ACR_DCEN, &STM32_FLASH->acr);
+
+ clrbits_le32(&STM32_RCC->cfgr, (RCC_CFGR_SW0 | RCC_CFGR_SW1));
+ setbits_le32(&STM32_RCC->cfgr, RCC_CFGR_SW_PLL);
+
+ while ((readl(&STM32_RCC->cfgr) & RCC_CFGR_SWS_MASK) !=
+ RCC_CFGR_SWS_PLL)
+ ;
+
+ return 0;
+}
+
+unsigned long clock_get(enum clock clck)
+{
+ u32 sysclk = 0;
+ u32 shift = 0;
+ /* PLL table lookups for clock computation */
+ u8 pll_mul_table[16] = {
+ 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 16
+ };
+ /* Prescaler table lookups for clock computation */
+ u8 ahb_psc_table[16] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9
+ };
+ u8 apb_psc_table[8] = {
+ 0, 0, 0, 0, 1, 2, 3, 4
+ };
+
+ if ((readl(&STM32_RCC->cfgr) & RCC_CFGR_SWS_MASK) ==
+ RCC_CFGR_SWS_PLL) {
+ u16 pll;
+ pll = ((readl(&STM32_RCC->cfgr) & RCC_CFGR_PLLMUL_MASK)
+ >> RCC_CFGR_PLLMUL_SHIFT);
+ sysclk = CONFIG_STM32_HSE_HZ * pll_mul_table[pll];
+ }
+
+ switch (clck) {
+ case CLOCK_CORE:
+ return sysclk;
+ break;
+ case CLOCK_AHB:
+ shift = ahb_psc_table[(
+ (readl(&STM32_RCC->cfgr) & RCC_CFGR_AHB_PSC_MASK)
+ >> RCC_CFGR_HPRE_SHIFT)];
+ return sysclk >>= shift;
+ break;
+ case CLOCK_APB1:
+ shift = apb_psc_table[(
+ (readl(&STM32_RCC->cfgr) & RCC_CFGR_APB1_PSC_MASK)
+ >> RCC_CFGR_PPRE1_SHIFT)];
+ return sysclk >>= shift;
+ break;
+ case CLOCK_APB2:
+ shift = apb_psc_table[(
+ (readl(&STM32_RCC->cfgr) & RCC_CFGR_APB2_PSC_MASK)
+ >> RCC_CFGR_PPRE2_SHIFT)];
+ return sysclk >>= shift;
+ break;
+ default:
+ return 0;
+ break;
+ }
+}
diff --git a/arch/arm/cpu/armv7m/stm32f1/flash.c b/arch/arm/cpu/armv7m/stm32f1/flash.c
new file mode 100644
index 0000000..bb88f23
--- /dev/null
+++ b/arch/arm/cpu/armv7m/stm32f1/flash.c
@@ -0,0 +1,180 @@
+/*
+ * (C) Copyright 2015
+ * Kamil Lulko, <rev13@wp.pl>
+ *
+ * Copyright 2015 ATS Advanced Telematics Systems GmbH
+ * Copyright 2015 Konsulko Group, Matt Porter <mporter@konsulko.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/stm32.h>
+
+#define STM32_FLASH_KEY1 0x45670123
+#define STM32_FLASH_KEY2 0xcdef89ab
+
+#define STM32_NUM_BANKS 2
+#define STM32_MAX_BANK 0x200
+
+flash_info_t flash_info[STM32_NUM_BANKS];
+static struct stm32_flash_bank_regs *flash_bank[STM32_NUM_BANKS];
+
+static void stm32f1_flash_lock(u8 bank, u8 lock)
+{
+ if (lock) {
+ setbits_le32(&flash_bank[bank]->cr, STM32_FLASH_CR_LOCK);
+ } else {
+ writel(STM32_FLASH_KEY1, &flash_bank[bank]->keyr);
+ writel(STM32_FLASH_KEY2, &flash_bank[bank]->keyr);
+ }
+}
+
+/* Only XL devices are supported (2 KiB sector size) */
+unsigned long flash_init(void)
+{
+ u8 i, banks;
+ u16 j, size;
+
+ /* Set up accessors for XL devices with wonky register layout */
+ flash_bank[0] = (struct stm32_flash_bank_regs *)&STM32_FLASH->keyr;
+ flash_bank[1] = (struct stm32_flash_bank_regs *)&STM32_FLASH->keyr2;
+
+ /*
+ * Get total flash size (in KiB) and configure number of banks
+ * present and sector count per bank.
+ */
+ size = readw(&STM32_DES->flash_size);
+ if (size <= STM32_MAX_BANK) {
+ banks = 1;
+ flash_info[0].sector_count = size >> 1;
+ } else if (size > STM32_MAX_BANK) {
+ banks = 2;
+ flash_info[0].sector_count = STM32_MAX_BANK >> 1;
+ flash_info[1].sector_count = (size - STM32_MAX_BANK) >> 1;
+ }
+
+ /* Configure start/size for all sectors */
+ for (i = 0; i < banks; i++) {
+ flash_info[i].flash_id = FLASH_STM32F1;
+ flash_info[i].start[0] = CONFIG_SYS_FLASH_BASE + (i << 19);
+ flash_info[i].size = 2048;
+ for (j = 1; (j < flash_info[i].sector_count); j++) {
+ flash_info[i].start[j] = flash_info[i].start[j - 1]
+ + 2048;
+ flash_info[i].size += 2048;
+ }
+ }
+
+ return size << 10;
+}
+
+void flash_print_info(flash_info_t *info)
+{
+ int i;
+
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf("Missing or unknown FLASH type\n");
+ return;
+ } else if (info->flash_id == FLASH_STM32F1) {
+ printf("STM32F1 Embedded Flash\n");
+ }
+
+ printf(" Size: %ld MB in %d Sectors\n",
+ info->size >> 10, info->sector_count);
+
+ printf(" Sector Start Addresses:");
+ for (i = 0; i < info->sector_count; ++i) {
+ if ((i % 5) == 0)
+ printf("\n ");
+ printf(" %08lX%s",
+ info->start[i],
+ info->protect[i] ? " (RO)" : " ");
+ }
+ printf("\n");
+ return;
+}
+
+int flash_erase(flash_info_t *info, int first, int last)
+{
+ u8 bank = 0xff;
+ int i;
+
+ for (i = 0; i < STM32_NUM_BANKS; i++) {
+ if (info == &flash_info[i]) {
+ bank = i;
+ break;
+ }
+ }
+ if (bank == 0xff)
+ return -1;
+
+ stm32f1_flash_lock(bank, 0);
+
+ for (i = first; i <= last; i++) {
+ while (readl(&flash_bank[bank]->sr) & STM32_FLASH_SR_BSY)
+ ;
+
+ setbits_le32(&flash_bank[bank]->cr, STM32_FLASH_CR_PER);
+
+ writel(info->start[i], &flash_bank[bank]->ar);
+
+ setbits_le32(&flash_bank[bank]->cr, STM32_FLASH_CR_STRT);
+
+ while (readl(&flash_bank[bank]->sr) & STM32_FLASH_SR_BSY)
+ ;
+ }
+
+ clrbits_le32(&flash_bank[bank]->cr, STM32_FLASH_CR_PER);
+
+ stm32f1_flash_lock(bank, 1);
+
+ return 0;
+}
+
+int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt)
+{
+ ulong i;
+ u8 bank = 0xff;
+
+ if (addr & 1) {
+ printf("Flash address must be half word aligned\n");
+ return -1;
+ }
+
+ if (cnt & 1) {
+ printf("Flash length must be half word aligned\n");
+ return -1;
+ }
+
+ for (i = 0; i < 2; i++) {
+ if (info == &flash_info[i]) {
+ bank = i;
+ break;
+ }
+ }
+
+ if (bank == 0xff)
+ return -1;
+
+ while (readl(&flash_bank[bank]->sr) & STM32_FLASH_SR_BSY)
+ ;
+
+ stm32f1_flash_lock(bank, 0);
+
+ setbits_le32(&flash_bank[bank]->cr, STM32_FLASH_CR_PG);
+
+ /* STM32F1 requires half word writes */
+ for (i = 0; i < cnt >> 1; i++) {
+ *(u16 *)(addr + i * 2) = ((u16 *)src)[i];
+ while (readl(&flash_bank[bank]->sr) & STM32_FLASH_SR_BSY)
+ ;
+ }
+
+ clrbits_le32(&flash_bank[bank]->cr, STM32_FLASH_CR_PG);
+
+ stm32f1_flash_lock(bank, 1);
+
+ return 0;
+}
diff --git a/arch/arm/cpu/armv7m/stm32f1/soc.c b/arch/arm/cpu/armv7m/stm32f1/soc.c
new file mode 100644
index 0000000..8275ad7
--- /dev/null
+++ b/arch/arm/cpu/armv7m/stm32f1/soc.c
@@ -0,0 +1,36 @@
+/*
+ * (C) Copyright 2015
+ * Kamil Lulko, <rev13@wp.pl>
+ *
+ * Copyright 2015 ATS Advanced Telematics Systems GmbH
+ * Copyright 2015 Konsulko Group, Matt Porter <mporter@konsulko.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/armv7m.h>
+#include <asm/arch/stm32.h>
+
+u32 get_cpu_rev(void)
+{
+ return 0;
+}
+
+int arch_cpu_init(void)
+{
+ configure_clocks();
+
+ /*
+ * Configure the memory protection unit (MPU) to allow full access to
+ * the whole 4GB address space.
+ */
+ writel(0, &V7M_MPU->rnr);
+ writel(0, &V7M_MPU->rbar);
+ writel((V7M_MPU_RASR_AP_RW_RW | V7M_MPU_RASR_SIZE_4GB
+ | V7M_MPU_RASR_EN), &V7M_MPU->rasr);
+ writel(V7M_MPU_CTRL_ENABLE | V7M_MPU_CTRL_HFNMIENA, &V7M_MPU->ctrl);
+
+ return 0;
+}
diff --git a/arch/arm/cpu/armv7m/stm32f1/timer.c b/arch/arm/cpu/armv7m/stm32f1/timer.c
new file mode 100644
index 0000000..c6292b5
--- /dev/null
+++ b/arch/arm/cpu/armv7m/stm32f1/timer.c
@@ -0,0 +1,121 @@
+/*
+ * (C) Copyright 2015
+ * Kamil Lulko, <rev13@wp.pl>
+ *
+ * Copyright 2015 ATS Advanced Telematics Systems GmbH
+ * Copyright 2015 Konsulko Group, Matt Porter <mporter@konsulko.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/armv7m.h>
+#include <asm/arch/stm32.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define STM32_TIM2_BASE (STM32_APB1PERIPH_BASE + 0x0000)
+
+#define RCC_APB1ENR_TIM2EN (1 << 0)
+
+struct stm32_tim2_5 {
+ u32 cr1;
+ u32 cr2;
+ u32 smcr;
+ u32 dier;
+ u32 sr;
+ u32 egr;
+ u32 ccmr1;
+ u32 ccmr2;
+ u32 ccer;
+ u32 cnt;
+ u32 psc;
+ u32 arr;
+ u32 reserved1;
+ u32 ccr1;
+ u32 ccr2;
+ u32 ccr3;
+ u32 ccr4;
+ u32 reserved2;
+ u32 dcr;
+ u32 dmar;
+ u32 or;
+};
+
+#define TIM_CR1_CEN (1 << 0)
+
+#define TIM_EGR_UG (1 << 0)
+
+int timer_init(void)
+{
+ struct stm32_tim2_5 *tim = (struct stm32_tim2_5 *)STM32_TIM2_BASE;
+
+ setbits_le32(&STM32_RCC->apb1enr, RCC_APB1ENR_TIM2EN);
+
+ if (clock_get(CLOCK_AHB) == clock_get(CLOCK_APB1))
+ writel((clock_get(CLOCK_APB1) / CONFIG_SYS_HZ_CLOCK) - 1,
+ &tim->psc);
+ else
+ writel(((clock_get(CLOCK_APB1) * 2) / CONFIG_SYS_HZ_CLOCK) - 1,
+ &tim->psc);
+
+ writel(0xFFFFFFFF, &tim->arr);
+ writel(TIM_CR1_CEN, &tim->cr1);
+ setbits_le32(&tim->egr, TIM_EGR_UG);
+
+ gd->arch.tbl = 0;
+ gd->arch.tbu = 0;
+ gd->arch.lastinc = 0;
+
+ return 0;
+}
+
+ulong get_timer(ulong base)
+{
+ return (get_ticks() / (CONFIG_SYS_HZ_CLOCK / CONFIG_SYS_HZ)) - base;
+}
+
+unsigned long long get_ticks(void)
+{
+ struct stm32_tim2_5 *tim = (struct stm32_tim2_5 *)STM32_TIM2_BASE;
+ u32 now;
+
+ now = readl(&tim->cnt);
+
+ if (now >= gd->arch.lastinc)
+ gd->arch.tbl += (now - gd->arch.lastinc);
+ else
+ gd->arch.tbl += (0xFFFFFFFF - gd->arch.lastinc) + now;
+
+ gd->arch.lastinc = now;
+
+ return gd->arch.tbl;
+}
+
+void reset_timer(void)
+{
+ struct stm32_tim2_5 *tim = (struct stm32_tim2_5 *)STM32_TIM2_BASE;
+
+ gd->arch.lastinc = readl(&tim->cnt);
+ gd->arch.tbl = 0;
+}
+
+/* delay x useconds */
+void __udelay(ulong usec)
+{
+ unsigned long long start;
+
+ start = get_ticks(); /* get current timestamp */
+ while ((get_ticks() - start) < usec)
+ ; /* loop till time has passed */
+}
+
+/*
+ * This function is derived from PowerPC code (timebase clock frequency).
+ * On ARM it returns the number of timer ticks per second.
+ */
+ulong get_tbclk(void)
+{
+ return CONFIG_SYS_HZ_CLOCK;
+}
generated by cgit v1.1 at 2024-12-29 10:23:04 +0000