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- From fe5f3a86d07e378baeeddc1dfecd0686d83aa42f Mon Sep 17 00:00:00 2001
- From: Yauheni Saldatsenka <eugentoo@gmail.com>
- Date: Sat, 14 Aug 2021 18:54:51 +0300
- Subject: [PATCH] stm32f469-i: Update kernel start address
- As of GNU/Linux v5.12 kernel device tree binary grows above 0x08008000
- and overwrites kernel binary
- Therefore this commit moves kernel to the next flash bank
- Signed-off-by: Yauheni Saldatsenka <eugentoo@gmail.com>
- ---
- stm32f469i-disco.c | 7 +++----
- 1 file changed, 3 insertions(+), 4 deletions(-)
- diff --git a/stm32f469i-disco.c b/stm32f469i-disco.c
- index 2da1f4b..46fc06a 100644
- --- a/stm32f469i-disco.c
- +++ b/stm32f469i-disco.c
- @@ -6,6 +6,7 @@
- #include "gpio.h"
- #include "mpu.h"
-
- +#define KERNEL_ADDR 0x08010000
- #define CONFIG_HSE_HZ 8000000
- #define CONFIG_PLL_M 8
- #define CONFIG_PLL_N 360
- @@ -85,7 +86,7 @@ static void fmc_wait_busy(void)
-
- void start_kernel(void)
- {
- - void (*kernel)(uint32_t reserved, uint32_t mach, uint32_t dt) = (void (*)(uint32_t, uint32_t, uint32_t))(0x08008000 | 1);
- + void (*kernel)(uint32_t reserved, uint32_t mach, uint32_t dt) = (void (*)(uint32_t, uint32_t, uint32_t))(KERNEL_ADDR | 1);
-
- kernel(0, ~0UL, 0x08004000);
- }
- @@ -102,7 +103,7 @@ int main(void)
- volatile uint32_t *SYSCFG_MEMRMP = (void *)(SYSCFG_BASE + 0x00);
- int i;
-
- - mpu_config(0x0);
- + mpu_config(0xc0000000);
-
- if (*FLASH_CR & FLASH_CR_LOCK) {
- *FLASH_KEYR = 0x45670123;
- @@ -195,8 +196,6 @@ int main(void)
- usart_setup(usart_base, 45000000);
- usart_putch(usart_base, '.');
-
- - *SYSCFG_MEMRMP = 0x4;
- -
- start_kernel();
-
- return 0;
- --
- 2.32.0
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