u-boot/board/cm-bf537u/flash.c
Harald Krapfenbauer 4640c2b869 Blackfin: cm-bf537u: new board port
The CM-BF537U is similar to the CM-BF537E module, but enough to need its
own board port.

Signed-off-by: Harald Krapfenbauer <Harald.Krapfenbauer@bluetechnix.at>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-02 05:58:37 -04:00

34 lines
748 B
C

/*
* flash.c - helper commands for working with GPIO-assisted flash
*
* Copyright (c) 2005-2009 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#include <common.h>
#include <command.h>
#include <asm/blackfin.h>
#include "gpio_cfi_flash.h"
int do_ph(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
ulong faddr = CONFIG_SYS_FLASH_BASE;
ushort data;
ulong dflg;
if (argc > 1) {
dflg = simple_strtoul(argv[1], NULL, 16);
faddr |= (dflg << 21);
gpio_cfi_flash_swizzle((void *)faddr);
} else {
data = bfin_read_PORTHIO();
printf("Port H data %04x (PH0:%i)\n", data, !!(data & PH0));
}
return 0;
}
U_BOOT_CMD(ph, 3, 0, do_ph,
"set/clear PH0 GPIO flash bank switch\n",
"<ph0> - set PH0 GPIO pin state\n");