| Anton Vorontsov | 5cea110 | 2008-03-24 20:46:51 +0300 | [diff] [blame] | 1 | /* |
| 2 | * MPC8360E-RDK support for the NAND on FSL UPM |
| 3 | * |
| 4 | * Copyright (C) 2007 MontaVista Software, Inc. |
| 5 | * Anton Vorontsov <avorontsov@ru.mvista.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License as |
| 9 | * published by the Free Software Foundation; either version 2 of |
| 10 | * the License, or (at your option) any later version. |
| 11 | */ |
| 12 | |
| 13 | #include <config.h> |
| 14 | #include <common.h> |
| 15 | #include <asm/io.h> |
| 16 | #include <asm/immap_83xx.h> |
| 17 | #include <linux/mtd/mtd.h> |
| 18 | #include <linux/mtd/fsl_upm.h> |
| 19 | #include <nand.h> |
| 20 | |
| 21 | static struct immap *im = (struct immap *)CFG_IMMR; |
| 22 | |
| 23 | static const u32 upm_array[] = { |
| 24 | 0x0ff03c30, 0x0ff03c30, 0x0ff03c34, 0x0ff33c30, /* Words 0 to 3 */ |
| 25 | 0xfff33c31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words 4 to 7 */ |
| 26 | 0x0faf3c30, 0x0faf3c30, 0x0faf3c30, 0x0fff3c34, /* Words 8 to 11 */ |
| 27 | 0xffff3c31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words 12 to 15 */ |
| 28 | 0x0fa3fc30, 0x0fa3fc30, 0x0fa3fc30, 0x0ff3fc34, /* Words 16 to 19 */ |
| 29 | 0xfff3fc31, 0xfffffc30, 0xfffffc30, 0xfffffc30, /* Words 20 to 23 */ |
| 30 | 0x0ff33c30, 0x0fa33c30, 0x0fa33c34, 0x0ff33c30, /* Words 24 to 27 */ |
| 31 | 0xfff33c31, 0xfff0fc30, 0xfff0fc30, 0xfff0fc30, /* Words 28 to 31 */ |
| 32 | 0xfff3fc30, 0xfff3fc30, 0xfff6fc30, 0xfffcfc30, /* Words 32 to 35 */ |
| 33 | 0xfffcfc30, 0xfffcfc30, 0xfffcfc30, 0xfffcfc30, /* Words 36 to 39 */ |
| 34 | 0xfffcfc30, 0xfffcfc30, 0xfffcfc30, 0xfffcfc30, /* Words 40 to 43 */ |
| 35 | 0xfffdfc30, 0xfffffc30, 0xfffffc30, 0xfffffc31, /* Words 44 to 47 */ |
| 36 | 0xfffffc30, 0xfffffc00, 0xfffffc00, 0xfffffc00, /* Words 48 to 51 */ |
| 37 | 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00, /* Words 52 to 55 */ |
| 38 | 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01, /* Words 56 to 59 */ |
| 39 | 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01, /* Words 60 to 63 */ |
| 40 | }; |
| 41 | |
| 42 | static int dev_ready(void) |
| 43 | { |
| 44 | if (in_be32(&im->qepio.ioport[4].pdat) & 0x00002000) { |
| 45 | debug("nand ready\n"); |
| 46 | return 1; |
| 47 | } |
| 48 | |
| 49 | debug("nand busy\n"); |
| 50 | return 0; |
| 51 | } |
| 52 | |
| 53 | static struct fsl_upm_nand fun = { |
| 54 | .upm = { |
| 55 | .array = upm_array, |
| 56 | .io_addr = (void *)CFG_NAND_BASE, |
| 57 | }, |
| 58 | .width = 1, |
| 59 | .upm_cmd_offset = 8, |
| 60 | .upm_addr_offset = 16, |
| 61 | .dev_ready = dev_ready, |
| 62 | .wait_pattern = 1, |
| 63 | .chip_delay = 50, |
| 64 | }; |
| 65 | |
| 66 | int board_nand_init(struct nand_chip *nand) |
| 67 | { |
| 68 | fun.upm.mxmr = &im->lbus.mamr; |
| 69 | fun.upm.mdr = &im->lbus.mdr; |
| 70 | fun.upm.mar = &im->lbus.mar; |
| 71 | return fsl_upm_nand_init(nand, &fun); |
| 72 | } |