2 * MPC8360E-RDK support for the NAND on FSL UPM
4 * Copyright (C) 2007 MontaVista Software, Inc.
5 * Anton Vorontsov <avorontsov@ru.mvista.com>
7 * SPDX-License-Identifier: GPL-2.0+
13 #include <asm/immap_83xx.h>
14 #include <linux/mtd/mtd.h>
15 #include <linux/mtd/fsl_upm.h>
18 static struct immap *im = (struct immap *)CONFIG_SYS_IMMR;
20 static const u32 upm_array[] = {
21 0x0ff03c30, 0x0ff03c30, 0x0ff03c34, 0x0ff33c30, /* Words 0 to 3 */
22 0xfff33c31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words 4 to 7 */
23 0x0faf3c30, 0x0faf3c30, 0x0faf3c30, 0x0fff3c34, /* Words 8 to 11 */
24 0xffff3c31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words 12 to 15 */
25 0x0fa3fc30, 0x0fa3fc30, 0x0fa3fc30, 0x0ff3fc34, /* Words 16 to 19 */
26 0xfff3fc31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words 20 to 23 */
27 0x0ff33c30, 0x0fa33c30, 0x0fa33c34, 0x0ff33c30, /* Words 24 to 27 */
28 0xfff33c31, 0xfff0fc30, 0xfff0fc30, 0xfff0fc30, /* Words 28 to 31 */
29 0xfff3fc30, 0xfff3fc30, 0xfff6fc30, 0xfffcfc30, /* Words 32 to 35 */
30 0xfffcfc30, 0xfffcfc30, 0xfffcfc30, 0xfffcfc30, /* Words 36 to 39 */
31 0xfffcfc30, 0xfffcfc30, 0xfffcfc30, 0xfffcfc30, /* Words 40 to 43 */
32 0xfffdfc30, 0xfffffc30, 0xfffffc30, 0xfffffc31, /* Words 44 to 47 */
33 0xfffffc30, 0xfffffc00, 0xfffffc00, 0xfffffc00, /* Words 48 to 51 */
34 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00, /* Words 52 to 55 */
35 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01, /* Words 56 to 59 */
36 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01, /* Words 60 to 63 */
39 static void upm_setup(struct fsl_upm *upm)
44 out_be32(upm->mxmr, MxMR_OP_WARR);
46 for (i = 0; i < 64; i++) {
47 out_be32(upm->mdr, upm_array[i]);
48 out_8(upm->io_addr, 0x0);
51 /* normal operation */
52 out_be32(upm->mxmr, MxMR_OP_NORM);
53 while (in_be32(upm->mxmr) != MxMR_OP_NORM)
57 static int dev_ready(int chip_nr)
59 if (in_be32(&im->qepio.ioport[4].pdat) & 0x00002000) {
60 debug("nand ready\n");
68 static struct fsl_upm_nand fun = {
70 .io_addr = (void *)CONFIG_SYS_NAND_BASE,
74 .upm_addr_offset = 16,
75 .dev_ready = dev_ready,
76 .wait_flags = FSL_UPM_WAIT_RUN_PATTERN,
80 int board_nand_init(struct nand_chip *nand)
82 fun.upm.mxmr = &im->im_lbc.mamr;
83 fun.upm.mdr = &im->im_lbc.mdr;
84 fun.upm.mar = &im->im_lbc.mar;
88 return fsl_upm_nand_init(nand, &fun);