Due to size limitations of the MERAM, switch U-Boot to SPL. The SPL is loaded by the SPI_LOADER into MERAM and then loads U-Boot proper into DRAM. This way U-Boot can freely grow in size in DRAM, as there is plenty of it.
Signed-off-by: Marek Vasut marek.vasut+renesas@gmail.com Cc: Nobuhiro Iwamatsu iwamatsu@nigauri.org --- NOTE: To update U-Boot, first install u-boot.img to 0x140000 in SPI NOR, then use the Minimon to flash u-boot-spl.srec using ls,2,e6304000. To generate u-boot-spl.srec, use objcopy: arm-linux-gnueabi-objcopy -O srec spl/u-boot-spl u-boot-spl.srec --- arch/arm/mach-rmobile/Kconfig.32 | 2 ++ board/renesas/porter/porter.c | 22 ++++++++++++++++++++++ configs/porter_defconfig | 20 +++++++++++++++++++- include/configs/porter.h | 15 +++++++++------ 4 files changed, 52 insertions(+), 7 deletions(-)
diff --git a/arch/arm/mach-rmobile/Kconfig.32 b/arch/arm/mach-rmobile/Kconfig.32 index ab05966d15..a96938c01e 100644 --- a/arch/arm/mach-rmobile/Kconfig.32 +++ b/arch/arm/mach-rmobile/Kconfig.32 @@ -70,6 +70,8 @@ config TARGET_PORTER bool "Porter board" select DM select DM_SERIAL + select SUPPORT_SPL + select SPL_DM if SPL
config TARGET_STOUT bool "Stout board" diff --git a/board/renesas/porter/porter.c b/board/renesas/porter/porter.c index 86dea8bfa7..bd0080d210 100644 --- a/board/renesas/porter/porter.c +++ b/board/renesas/porter/porter.c @@ -115,3 +115,25 @@ void reset_cpu(ulong addr) val |= 0x02; i2c_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1); } + +#ifdef CONFIG_SPL_BUILD +#include <spl.h> +void board_init_f(ulong dummy) +{ + board_early_init_f(); +} + +void spl_board_init(void) +{ + /* UART clocks enabled and gd valid - init serial console */ + preloader_console_init(); +} + +void board_boot_order(u32 *spl_boot_list) +{ + /* Boot from SPI NOR with YMODEM UART fallback. */ + spl_boot_list[0] = BOOT_DEVICE_SPI; + spl_boot_list[1] = BOOT_DEVICE_UART; + spl_boot_list[2] = BOOT_DEVICE_NONE; +} +#endif diff --git a/configs/porter_defconfig b/configs/porter_defconfig index 38501d0bf1..0fa308b584 100644 --- a/configs/porter_defconfig +++ b/configs/porter_defconfig @@ -1,12 +1,22 @@ CONFIG_ARM=y CONFIG_ARCH_RMOBILE=y -CONFIG_SYS_TEXT_BASE=0xE6304000 +CONFIG_SYS_TEXT_BASE=0x50000000 +CONFIG_SPL_GPIO_SUPPORT=y +CONFIG_SPL_LIBCOMMON_SUPPORT=y +CONFIG_SPL_LIBGENERIC_SUPPORT=y CONFIG_SYS_MALLOC_F_LEN=0x8000 CONFIG_R8A7791=y CONFIG_TARGET_PORTER=y +CONFIG_SPL_SERIAL_SUPPORT=y +CONFIG_SPL_SPI_FLASH_SUPPORT=y +CONFIG_SPL_SPI_SUPPORT=y CONFIG_DEFAULT_DEVICE_TREE="r8a7791-porter-u-boot" CONFIG_BOOTDELAY=3 CONFIG_VERSION_VARIABLE=y +CONFIG_SPL=y +CONFIG_SPL_BOARD_INIT=y +CONFIG_SPL_I2C_SUPPORT=y +CONFIG_SPL_YMODEM_SUPPORT=y CONFIG_CMD_BOOTZ=y # CONFIG_CMD_IMI is not set # CONFIG_CMD_XIMG is not set @@ -26,8 +36,14 @@ CONFIG_CMD_EXT4=y CONFIG_CMD_EXT4_WRITE=y CONFIG_CMD_FAT=y CONFIG_OF_CONTROL=y +CONFIG_SPL_OF_CONTROL=y +CONFIG_OF_EMBED=y +CONFIG_OF_SPL_REMOVE_PROPS="interrupts interrupt-parent dma-names dmas power-domains" CONFIG_ENV_IS_IN_SPI_FLASH=y +CONFIG_SPL_DM_SEQ_ALIAS=y +CONFIG_SPL_OF_TRANSLATE=y CONFIG_CLK=y +CONFIG_SPL_CLK=y CONFIG_CLK_RENESAS=y CONFIG_DM_GPIO=y CONFIG_RCAR_GPIO=y @@ -44,6 +60,7 @@ CONFIG_DM_PCI=y CONFIG_PCI_RCAR_GEN2=y CONFIG_PINCTRL=y CONFIG_PINCONF=y +CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_PFC=y CONFIG_DM_REGULATOR=y CONFIG_DM_REGULATOR_FIXED=y @@ -55,3 +72,4 @@ CONFIG_DM_USB=y CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_PCI=y CONFIG_USB_STORAGE=y +CONFIG_SPL_FRAMEWORK=y diff --git a/include/configs/porter.h b/include/configs/porter.h index b4a317f724..758ed21c15 100644 --- a/include/configs/porter.h +++ b/include/configs/porter.h @@ -16,12 +16,8 @@
#include "rcar-gen2-common.h"
-#if defined(CONFIG_ARCH_RMOBILE_EXTRAM_BOOT) -#define CONFIG_SYS_INIT_SP_ADDR 0x7023FFFC -#else -#define CONFIG_SYS_INIT_SP_ADDR 0xE633fffC -#endif -#define STACK_AREA_SIZE 0xC000 +#define CONFIG_SYS_INIT_SP_ADDR 0x4f000000 +#define STACK_AREA_SIZE 0x00100000 #define LOW_LEVEL_MERAM_STACK \ (CONFIG_SYS_INIT_SP_ADDR + STACK_AREA_SIZE - 4)
@@ -67,4 +63,11 @@
#define CONFIG_SYS_I2C_POWERIC_ADDR 0x58 /* da9063 */
+/* SPL support */ +#define CONFIG_SPL_TEXT_BASE 0xe6304000 +#define CONFIG_SPL_STACK 0xe6340000 +#define CONFIG_SPL_MAX_SIZE 0x40000 +#define CONFIG_SPL_SPI_LOAD +#define CONFIG_SYS_SPI_U_BOOT_OFFS 0x140000 + #endif /* __PORTER_H */