projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 7ad95949 AV |
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 | ||
| 6d0f6bcf | 21 | static struct immap *im = (struct immap *)CONFIG_SYS_IMMR; |
| 7ad95949 AV |
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 | ||
| b4fe1a71 WG |
42 | static void upm_setup(struct fsl_upm *upm) |
| 43 | { | |
| 44 | int i; | |
| 45 | ||
| 46 | /* write upm array */ | |
| 47 | out_be32(upm->mxmr, MxMR_OP_WARR); | |
| 48 | ||
| 49 | for (i = 0; i < 64; i++) { | |
| 50 | out_be32(upm->mdr, upm_array[i]); | |
| 51 | out_8(upm->io_addr, 0x0); | |
| 52 | } | |
| 53 | ||
| 54 | /* normal operation */ | |
| 55 | out_be32(upm->mxmr, MxMR_OP_NORM); | |
| 56 | while (in_be32(upm->mxmr) != MxMR_OP_NORM) | |
| 57 | eieio(); | |
| 58 | } | |
| 59 | ||
| e93c1c16 | 60 | static int dev_ready(int chip_nr) |
| 7ad95949 AV |
61 | { |
| 62 | if (in_be32(&im->qepio.ioport[4].pdat) & 0x00002000) { | |
| 63 | debug("nand ready\n"); | |
| 64 | return 1; | |
| 65 | } | |
| 66 | ||
| 67 | debug("nand busy\n"); | |
| 68 | return 0; | |
| 69 | } | |
| 70 | ||
| 71 | static struct fsl_upm_nand fun = { | |
| 72 | .upm = { | |
| 6d0f6bcf | 73 | .io_addr = (void *)CONFIG_SYS_NAND_BASE, |
| 7ad95949 | 74 | }, |
| b4fe1a71 | 75 | .width = 8, |
| 7ad95949 AV |
76 | .upm_cmd_offset = 8, |
| 77 | .upm_addr_offset = 16, | |
| 78 | .dev_ready = dev_ready, | |
| 33846df2 | 79 | .wait_flags = FSL_UPM_WAIT_RUN_PATTERN, |
| 7ad95949 AV |
80 | .chip_delay = 50, |
| 81 | }; | |
| 82 | ||
| 83 | int board_nand_init(struct nand_chip *nand) | |
| 84 | { | |
| 85 | fun.upm.mxmr = &im->lbus.mamr; | |
| 86 | fun.upm.mdr = &im->lbus.mdr; | |
| 87 | fun.upm.mar = &im->lbus.mar; | |
| b4fe1a71 WG |
88 | |
| 89 | upm_setup(&fun.upm); | |
| 90 | ||
| 7ad95949 AV |
91 | return fsl_upm_nand_init(nand, &fun); |
| 92 | } |