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ARM: highbank: setup env from boot source register

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Add support to read the boot src register and set bootcmd env from the
selected bootcmdX env setting.

Based on Linkstation boot choice selection.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
This commit is contained in:
Rob Herring 2012-02-01 16:57:57 +00:00 committed by Albert ARIBAUD
parent a34e854948
commit 4a3ea21641
1 changed files with 13 additions and 0 deletions
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13
board/highbank/highbank.c
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@ -24,6 +24,7 @@
#include <asm/io.h>
#define HB_SREG_A9_PWR_REQ 0xfff3cf00
#define HB_SREG_A9_BOOT_SRC_STAT 0xfff3cf04
#define HB_PWR_SUSPEND 0
#define HB_PWR_SOFT_RESET 1
#define HB_PWR_HARD_RESET 2
@ -55,8 +56,20 @@ int board_eth_init(bd_t *bis)
int misc_init_r(void)
{
char envbuffer[16];
u32 boot_choice;
ahci_init(0xffe08000);
scsi_scan(1);
boot_choice = readl(HB_SREG_A9_BOOT_SRC_STAT) & 0xff;
sprintf(envbuffer, "bootcmd%d", boot_choice);
if (getenv(envbuffer)) {
sprintf(envbuffer, "run bootcmd%d", boot_choice);
setenv("bootcmd", envbuffer);
} else
setenv("bootcmd", "");
return 0;
}