mirror of
https://github.com/AsahiLinux/u-boot
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72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
/*
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* MPC8360E-RDK support for the NAND on FSL UPM
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*
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* Copyright (C) 2007 MontaVista Software, Inc.
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* Anton Vorontsov <avorontsov@ru.mvista.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*/
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#include <config.h>
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#include <common.h>
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#include <asm/io.h>
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#include <asm/immap_83xx.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/fsl_upm.h>
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#include <nand.h>
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static struct immap *im = (struct immap *)CFG_IMMR;
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static const u32 upm_array[] = {
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0x0ff03c30, 0x0ff03c30, 0x0ff03c34, 0x0ff33c30, /* Words 0 to 3 */
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0xfff33c31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words 4 to 7 */
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0x0faf3c30, 0x0faf3c30, 0x0faf3c30, 0x0fff3c34, /* Words 8 to 11 */
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0xffff3c31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words 12 to 15 */
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0x0fa3fc30, 0x0fa3fc30, 0x0fa3fc30, 0x0ff3fc34, /* Words 16 to 19 */
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0xfff3fc31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words 20 to 23 */
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0x0ff33c30, 0x0fa33c30, 0x0fa33c34, 0x0ff33c30, /* Words 24 to 27 */
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0xfff33c31, 0xfff0fc30, 0xfff0fc30, 0xfff0fc30, /* Words 28 to 31 */
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0xfff3fc30, 0xfff3fc30, 0xfff6fc30, 0xfffcfc30, /* Words 32 to 35 */
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0xfffcfc30, 0xfffcfc30, 0xfffcfc30, 0xfffcfc30, /* Words 36 to 39 */
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0xfffcfc30, 0xfffcfc30, 0xfffcfc30, 0xfffcfc30, /* Words 40 to 43 */
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0xfffdfc30, 0xfffffc30, 0xfffffc30, 0xfffffc31, /* Words 44 to 47 */
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0xfffffc30, 0xfffffc00, 0xfffffc00, 0xfffffc00, /* Words 48 to 51 */
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0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00, /* Words 52 to 55 */
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0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01, /* Words 56 to 59 */
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0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01, /* Words 60 to 63 */
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};
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static int dev_ready(void)
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{
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if (in_be32(&im->qepio.ioport[4].pdat) & 0x00002000) {
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debug("nand ready\n");
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return 1;
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}
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debug("nand busy\n");
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return 0;
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}
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static struct fsl_upm_nand fun = {
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.upm = {
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.array = upm_array,
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.io_addr = (void *)CFG_NAND_BASE,
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},
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.width = 1,
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.upm_cmd_offset = 8,
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.upm_addr_offset = 16,
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.dev_ready = dev_ready,
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.wait_pattern = 1,
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.chip_delay = 50,
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};
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int board_nand_init(struct nand_chip *nand)
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{
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fun.upm.mxmr = &im->lbus.mamr;
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fun.upm.mdr = &im->lbus.mdr;
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fun.upm.mar = &im->lbus.mar;
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return fsl_upm_nand_init(nand, &fun);
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}
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