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| author | Heiko Schocher <hs@denx.de> | 2010-04-26 13:07:28 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-04-30 00:45:22 +0200 |
| commit | f1fef1d8a141e0b4e4520d66e162c06ff047bd16 (patch) | |
| tree | 41b7f4a2fd983b3472816ad6e613c72c97a482dd /board/keymile/common/common.c | |
| parent | 0d01520200f3bb0686567134bc2e7bb940009559 (diff) | |
| download | u-boot-imx-f1fef1d8a141e0b4e4520d66e162c06ff047bd16.zip u-boot-imx-f1fef1d8a141e0b4e4520d66e162c06ff047bd16.tar.gz u-boot-imx-f1fef1d8a141e0b4e4520d66e162c06ff047bd16.tar.bz2 | |
keymile, common: add setting of some environment variables
This patch adds last_stage_init to all keymile boards. And
in the last stage init some environment variables for u-boot
were set. Currently these are pnvramaddr, pram and var address.
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
cc: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Wolfgang Denk <wd@denx.de>
cc: Kim Phillips <kim.phillips@freescale.com>
Diffstat (limited to 'board/keymile/common/common.c')
| -rw-r--r-- | board/keymile/common/common.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c index 8392a64..4883fe5 100644 --- a/board/keymile/common/common.c +++ b/board/keymile/common/common.c @@ -42,6 +42,7 @@ static void i2c_write_start_seq(void); static int i2c_make_abort(void); +DECLARE_GLOBAL_DATA_PTR; int ivm_calc_crc(unsigned char *buf, int len) { @@ -73,6 +74,41 @@ int ivm_calc_crc(unsigned char *buf, int len) return crc; } +/* + * Set Keymile specific environment variables + * Currently only some memory layout variables are calculated here + * ... ------------------------------------------------ + * ... |@rootfsaddr |@pnvramaddr |@varaddr |@reserved |@END_OF_RAM + * ... |<------------------- pram ------------------->| + * ... ------------------------------------------------ + * @END_OF_RAM: denotes the RAM size + * @pnvramaddr: Startadress of pseudo non volatile RAM in hex + * @pram : preserved ram size in k + * @varaddr : startadress for /var mounted into RAM + */ +int set_km_env(void) +{ + uchar buf[32]; + unsigned int pnvramaddr; + unsigned int pram; + unsigned int varaddr; + + pnvramaddr = gd->ram_size - CONFIG_KM_RESERVED_PRAM - CONFIG_KM_PHRAM + - CONFIG_KM_PNVRAM; + sprintf((char *)buf, "0x%x", pnvramaddr); + setenv("pnvramaddr", (char *)buf); + + pram = (CONFIG_KM_RESERVED_PRAM + CONFIG_KM_PHRAM + CONFIG_KM_PNVRAM) / + 0x400; + sprintf((char *)buf, "0x%x", pram); + setenv("pram", (char *)buf); + + varaddr = gd->ram_size - CONFIG_KM_RESERVED_PRAM - CONFIG_KM_PHRAM; + sprintf((char *)buf, "0x%x", varaddr); + setenv("varaddr", (char *)buf); + return 0; +} + static int ivm_set_value(char *name, char *value) { char tempbuf[256]; |