[U-Boot] [PATCH 2/5] 74xx_7xx: CPCI750: Add loadpci command

[Matthias Fuchs <matthias.fuchs@esd-electronics.com>]

Hi Stefan,

doen't it make sense to use/extend the code from board/esd/common/cmd_loadpci.c
in stead it copying this code? Even that code is running on 4xx only, it should be simple
to modify it for cpci750. Adding support for bootvx should be simple also.

Matthias

> 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>
> ---
>  board/esd/cpci750/cpci750.c |   76 +++++++++++++++++++++++++++++++++++++++++++
>  1 files changed, 76 insertions(+), 0 deletions(-)
> 
> diff --git a/board/esd/cpci750/cpci750.c b/board/esd/cpci750/cpci750.c
> index 4826633..3473504 100644
> --- a/board/esd/cpci750/cpci750.c
> +++ b/board/esd/cpci750/cpci750.c
> @@ -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)