From b97476965bf292c13074e01de4bd39253de0ef66 Mon Sep 17 00:00:00 2001 From: Vikas Manocha Date: Sun, 28 May 2017 12:55:10 -0700 Subject: stm32: stm32f7: add spl build support This commit supports booting from stm32 internal nor flash. spl U-Boot initializes the sdram memory, copies next image (e.g. standard U-Boot) to sdram & then jumps to entry point. Here are the flash memory addresses for U-Boot-spl & standard U-Boot: - spl U-Boot : 0x0800_0000 - standard U-Boot : 0x0800_8000 To compile u-boot without spl: Remove SUPPORT_SPL configuration (arch/arm/mach-stm32/Kconfig) Signed-off-by: Vikas Manocha [trini: Rework Kconfig logic a bit] Signed-off-by: Tom Rini --- include/configs/stm32f746-disco.h | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/configs/stm32f746-disco.h b/include/configs/stm32f746-disco.h index 1ee58156e0e..055fdf8ef01 100644 --- a/include/configs/stm32f746-disco.h +++ b/include/configs/stm32f746-disco.h @@ -10,7 +10,12 @@ #define CONFIG_SYS_FLASH_BASE 0x08000000 #define CONFIG_SYS_INIT_SP_ADDR 0x20050000 -#define CONFIG_SYS_TEXT_BASE 0x08000000 + +#ifdef CONFIG_SUPPORT_SPL +#define CONFIG_SYS_TEXT_BASE 0xC0000000 +#else +#define CONFIG_SYS_TEXT_BASE CONFIG_SYS_FLASH_BASE +#endif /* * Configuration of the external SDRAM memory @@ -69,4 +74,19 @@ #define CONFIG_CMD_CACHE #define CONFIG_BOARD_LATE_INIT #define CONFIG_DISPLAY_BOARDINFO + +/* For SPL */ +#ifdef CONFIG_SUPPORT_SPL +#define CONFIG_SPL_STACK CONFIG_SYS_INIT_SP_ADDR +#define CONFIG_SPL_FRAMEWORK +#define CONFIG_SPL_BOARD_INIT +#define CONFIG_SPL_TEXT_BASE CONFIG_SYS_FLASH_BASE +#define CONFIG_SYS_MONITOR_LEN (512 * 1024) +#define CONFIG_SYS_SPL_LEN 0x00008000 +#define CONFIG_SYS_UBOOT_START 0XC00003FD +#define CONFIG_SYS_UBOOT_BASE (CONFIG_SYS_FLASH_BASE + \ + CONFIG_SYS_SPL_LEN) +#endif +/* For SPL ends */ + #endif /* __CONFIG_H */ -- cgit v1.2.3