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74xx_7xx: CPCI750: Add loadpci command

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This command is used to load/boot an OS-image which is transferred from
the CPCI host to the CPCI target/adapter.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
This commit is contained in:
Stefan Roese 2009-06-04 13:35:36 +02:00 committed by Wolfgang Denk
parent 0a14d6b8f4
commit 0e5ef07d0d
1 changed files with 76 additions and 0 deletions
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76
board/esd/cpci750/cpci750.c
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@ -122,6 +122,9 @@ static char show_config_tab[][15] = {{"PCI0DLL_2 "}, /* 31 */
extern flash_info_t flash_info[];
extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
extern int do_bootvx (cmd_tbl_t *, int, int, char *[]);
/* ------------------------------------------------------------------------- */
/* this is the current GT register space location */
@ -538,6 +541,79 @@ int display_mem_map (void)
return (0);
}
/*
* Command loadpci: wait for signal from host and boot image.
*/
int do_loadpci(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
volatile unsigned int *ptr;
int count = 0;
int count2 = 0;
int status;
char addr[16];
char str[] = "\\|/-";
char *local_args[2];
/*
* Mark sync address
*/
ptr = 0;
ptr[0] = 0xffffffff;
ptr[1] = 0xffffffff;
puts("\nWaiting for image from pci host -");
/*
* Wait for host to write the start address
*/
while (*ptr == 0xffffffff) {
count++;
if (!(count % 100)) {
count2++;
putc(0x08); /* backspace */
putc(str[count2 % 4]);
}
/* Abort if ctrl-c was pressed */
if (ctrlc()) {
puts("\nAbort\n");
return 0;
}
udelay(1000);
}
sprintf(addr, "%08x", *ptr);
printf("\nBooting Image at addr 0x%s ...\n", addr);
setenv("loadaddr", addr);
switch (ptr[1] == 0) {
case 0:
/*
* Boot image via bootm
*/
local_args[0] = argv[0];
local_args[1] = NULL;
status = do_bootm (cmdtp, 0, 1, local_args);
break;
case 1:
/*
* Boot image via bootvx
*/
local_args[0] = argv[0];
local_args[1] = NULL;
status = do_bootvx (cmdtp, 0, 1, local_args);
break;
}
return 0;
}
U_BOOT_CMD(
loadpci, 1, 1, do_loadpci,
"loadpci - Wait for pci-image and boot it\n",
NULL
);
/* DRAM check routines copied from gw8260 */
#if defined (CONFIG_SYS_DRAM_TEST)