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34 lines
748 B
C
34 lines
748 B
C
/*
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* flash.c - helper commands for working with GPIO-assisted flash
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*
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* Copyright (c) 2005-2009 Analog Devices Inc.
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*
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* Licensed under the GPL-2 or later.
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*/
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#include <common.h>
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#include <command.h>
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#include <asm/blackfin.h>
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#include "gpio_cfi_flash.h"
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int do_pf(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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ulong faddr = CONFIG_SYS_FLASH_BASE;
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ushort data;
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ulong dflg;
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if (argc > 1) {
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dflg = simple_strtoul(argv[1], NULL, 16);
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faddr |= (dflg << 21);
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gpio_cfi_flash_swizzle((void *)faddr);
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} else {
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data = bfin_read_PORTFIO();
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printf("Port F data %04x (PF4:%i)\n", data, !!(data & PF4));
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}
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return 0;
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}
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U_BOOT_CMD(pf, 3, 0, do_pf,
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"set/clear PF4 GPIO flash bank switch\n",
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"<pf4> - set PF4 GPIO pin state\n");
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