This target will move the environment into SPI flash and documents the expected layout. We correct the SPL define for where U-Boot is and remove an unused define.
Signed-off-by: Tom Rini trini@ti.com --- boards.cfg | 1 + include/configs/am335x_evm.h | 25 +++++++++++++++++++++++-- 2 files changed, 24 insertions(+), 2 deletions(-)
diff --git a/boards.cfg b/boards.cfg index 98f7a14..73195eb 100644 --- a/boards.cfg +++ b/boards.cfg @@ -231,6 +231,7 @@ integratorap_cm946es arm arm946es integrator armltd integratorcp_cm946es arm arm946es integrator armltd - integratorcp:CM946ES ca9x4_ct_vxp arm armv7 vexpress armltd am335x_evm arm armv7 am335x ti am33xx am335x_evm:SERIAL1,CONS_INDEX=1 +am335x_evm_spiboot arm armv7 am335x ti am33xx am335x_evm:SERIAL1,CONS_INDEX=1,SPI_BOOT am335x_evm_uart1 arm armv7 am335x ti am33xx am335x_evm:SERIAL2,CONS_INDEX=2 am335x_evm_uart2 arm armv7 am335x ti am33xx am335x_evm:SERIAL3,CONS_INDEX=3 am335x_evm_uart3 arm armv7 am335x ti am33xx am335x_evm:SERIAL4,CONS_INDEX=4 diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h index 61607a5..1316a44 100644 --- a/include/configs/am335x_evm.h +++ b/include/configs/am335x_evm.h @@ -279,8 +279,7 @@ #define CONFIG_SPL_SPI_LOAD #define CONFIG_SPL_SPI_BUS 0 #define CONFIG_SPL_SPI_CS 0 -#define CONFIG_SYS_SPI_U_BOOT_OFFS 0x20000 -#define CONFIG_SYS_SPI_U_BOOT_SIZE 0x40000 +#define CONFIG_SYS_SPI_U_BOOT_OFFS 0x80000 #define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/omap-common/u-boot-spl.lds"
#define CONFIG_SPL_BOARD_INIT @@ -356,6 +355,26 @@ #define CONFIG_USB_ETH_RNDIS #endif /* CONFIG_MUSB_GADGET */
+/* + * Default to using SPI for environment, etc. We have multiple copies + * of SPL as the ROM will check these locations. + * 0x0 - 0x20000 : First copy of SPL + * 0x20000 - 0x40000 : Second copy of SPL + * 0x40000 - 0x60000 : Third copy of SPL + * 0x60000 - 0x80000 : Fourth copy of SPL + * 0x80000 - 0xDF000 : U-Boot + * 0xDF000 - 0xE0000 : U-Boot Environment + * 0xE0000 - 0x442000 : Linux Kernel + * 0x442000 - 0x800000 : Userland + */ +#if defined(CONFIG_SPI_BOOT) +# undef CONFIG_ENV_IS_NOWHERE +# define CONFIG_ENV_IS_IN_SPI_FLASH +# define CONFIG_ENV_SPI_MAX_HZ CONFIG_SF_DEFAULT_SPEED +# define CONFIG_ENV_OFFSET (892 << 10) /* 892 KiB in */ +# define CONFIG_ENV_SECT_SIZE (4 << 10) /* 4 KB sectors */ +#endif /* SPI support */ + /* Unsupported features */ #undef CONFIG_USE_IRQ
@@ -388,10 +407,12 @@ /* CS0 */ #define CONFIG_SYS_MAX_NAND_DEVICE 1 /* Max number of NAND devices */ +#if !defined(CONFIG_SPI_BOOT) #undef CONFIG_ENV_IS_NOWHERE #define CONFIG_ENV_IS_IN_NAND #define CONFIG_ENV_OFFSET 0x260000 /* environment starts here */ #define CONFIG_SYS_ENV_SECT_SIZE (128 << 10) /* 128 KiB */ #endif +#endif
#endif /* ! __CONFIG_AM335X_EVM_H */