diff options
| author | Ryan Harkin <ryan.harkin@linaro.org> | 2015-11-18 10:39:09 +0000 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2015-11-21 21:50:29 -0500 |
| commit | f3c71c93d71dbc8994648b7f7b98210df2d0a0a6 (patch) | |
| tree | 2148d5f1fcc684f62822cd1e8811d034db5bff89 /include | |
| parent | 3e933f43e993791d9bad304189ff2178ca04a1c8 (diff) | |
vexpress64: store env in flash
Add support for storing the environment in CFI NOR flash on Juno and FVP
models.
I also removed some config values that are not used by CFI flash parts.
Juno has 1 flash part with 259 sectors. The first 255 sectors are
0x40000 (256kb) and are followed by 4 sectors of 0x10000 (64KB).
FVP models simulate a 64MB NOR flash part at base address 0x0FFC0000.
This part has 256 x 256kb sectors. We use the last sector to store the
environment.
To save the NOR flash to a file, the following parameters should be
passed to the model:
-C bp.flashloader1.fname=${FILENAME}
-C bp.flashloader1.fnameWrite=${FILENAME}
Foundation models don't simulate the NOR flash, but having NOR support
in the u-boot binary does not harm: attempting to write to the NOR will
fail gracefully.
Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/configs/vexpress_aemv8a.h | 37 |
1 files changed, 20 insertions, 17 deletions
diff --git a/include/configs/vexpress_aemv8a.h b/include/configs/vexpress_aemv8a.h index 6734d7e1fa..c767f90e88 100644 --- a/include/configs/vexpress_aemv8a.h +++ b/include/configs/vexpress_aemv8a.h @@ -276,10 +276,6 @@ #endif -/* Do not preserve environment */ -#define CONFIG_ENV_IS_NOWHERE 1 -#define CONFIG_ENV_SIZE 0x1000 - /* Monitor Command Prompt */ #define CONFIG_SYS_CBSIZE 512 /* Console I/O Buffer Size */ #define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \ @@ -290,28 +286,35 @@ #define CONFIG_CMDLINE_EDITING #define CONFIG_SYS_MAXARGS 64 /* max command args */ -/* Flash memory is available on the Juno board only */ -#ifndef CONFIG_TARGET_VEXPRESS64_JUNO -#define CONFIG_SYS_NO_FLASH +#ifdef CONFIG_TARGET_VEXPRESS64_JUNO +#define CONFIG_SYS_FLASH_BASE 0x08000000 +/* 255 x 256KiB sectors + 4 x 64KiB sectors at the end = 259 */ +#define CONFIG_SYS_MAX_FLASH_SECT 259 +/* Store environment at top of flash in the same location as blank.img */ +/* in the Juno firmware. */ +#define CONFIG_ENV_ADDR 0x0BFC0000 +#define CONFIG_ENV_SECT_SIZE 0x00010000 #else +#define CONFIG_SYS_FLASH_BASE 0x0C000000 +/* 256 x 256KiB sectors */ +#define CONFIG_SYS_MAX_FLASH_SECT 256 +/* Store environment at top of flash */ +#define CONFIG_ENV_ADDR 0x0FFC0000 +#define CONFIG_ENV_SECT_SIZE 0x00040000 +#endif + #define CONFIG_CMD_ARMFLASH #define CONFIG_SYS_FLASH_CFI 1 #define CONFIG_FLASH_CFI_DRIVER 1 #define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_32BIT -#define CONFIG_SYS_FLASH_BASE 0x08000000 -#define CONFIG_SYS_FLASH_SIZE 0x04000000 /* 64 MiB */ -#define CONFIG_SYS_MAX_FLASH_BANKS 2 +#define CONFIG_SYS_MAX_FLASH_BANKS 1 -/* Timeout values in ticks */ -#define CONFIG_SYS_FLASH_ERASE_TOUT (2 * CONFIG_SYS_HZ) /* Erase Timeout */ -#define CONFIG_SYS_FLASH_WRITE_TOUT (2 * CONFIG_SYS_HZ) /* Write Timeout */ - -/* 255 0x40000 sectors + first or last sector may have 4 erase regions = 259 */ -#define CONFIG_SYS_MAX_FLASH_SECT 259 /* Max sectors */ #define CONFIG_SYS_FLASH_USE_BUFFER_WRITE /* use buffered writes */ #define CONFIG_SYS_FLASH_PROTECTION /* The devices have real protection */ #define CONFIG_SYS_FLASH_EMPTY_INFO /* flinfo indicates empty blocks */ +#define FLASH_MAX_SECTOR_SIZE 0x00040000 +#define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE +#define CONFIG_ENV_IS_IN_FLASH 1 -#endif #endif /* __VEXPRESS_AEMV8A_H */ |