ca2a88f56a
- Various cleanups especially in NAND tests - Add support for NAND flash on BCMA bus - DT support for sh_flctl and denali NAND drivers - Kill obsolete/superceded drivers (fortunet, nomadik_nand) - Fix JFFS2 locking bug in ENOMEM failure path - New SPI flash chips, as usual - Support writing in 'reliable mode' for DiskOnChip G4 - Debugfs support in nandsim -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEABECAAYFAlDSAa4ACgkQdwG7hYl686MMcACeNYa//ghPtccb5L+IRXsqaFDL Yi4AoLWOaOjN8qM4KUF/bfMEkwNGAePz =DaAQ -----END PGP SIGNATURE----- Merge tag 'for-linus-20121219' of git://git.infradead.org/linux-mtd Pull MTD updates from David Woodhouse: - Various cleanups especially in NAND tests - Add support for NAND flash on BCMA bus - DT support for sh_flctl and denali NAND drivers - Kill obsolete/superceded drivers (fortunet, nomadik_nand) - Fix JFFS2 locking bug in ENOMEM failure path - New SPI flash chips, as usual - Support writing in 'reliable mode' for DiskOnChip G4 - Debugfs support in nandsim * tag 'for-linus-20121219' of git://git.infradead.org/linux-mtd: (96 commits) mtd: nand: typo in nand_id_has_period() comments mtd: nand/gpio: use io{read,write}*_rep accessors mtd: block2mtd: throttle writes by calling balance_dirty_pages_ratelimited. mtd: nand: gpmi: reset BCH earlier, too, to avoid NAND startup problems mtd: nand/docg4: fix and improve read of factory bbt mtd: nand/docg4: reserve bb marker area in ecclayout mtd: nand/docg4: add support for writing in reliable mode mtd: mxc_nand: reorder part_probes to let cmdline override other sources mtd: mxc_nand: fix unbalanced clk_disable() in error path mtd: nandsim: Introduce debugfs infrastructure mtd: physmap_of: error checking to prevent a NULL pointer dereference mtg: docg3: potential divide by zero in doc_write_oob() mtd: bcm47xxnflash: writing support mtd: tests/read: initialize buffer for whole next page mtd: at91: atmel_nand: return bit flips for the PMECC read_page() mtd: fix recovery after failed write-buffer operation in cfi_cmdset_0002.c mtd: nand: onfi need to be probed in 8 bits mode mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus width mtd: nand: print flash size during detection mted: nand_wait_ready timeout fix ...
360 lines
9.7 KiB
C
360 lines
9.7 KiB
C
/*
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* linux/arch/arm/mach-nomadik/board-8815nhk.c
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*
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* Copyright (C) STMicroelectronics
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2, as
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* published by the Free Software Foundation.
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*
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* NHK15 board specifc driver definition
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/amba/bus.h>
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#include <linux/amba/mmci.h>
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#include <linux/interrupt.h>
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#include <linux/gpio.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/nand.h>
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#include <linux/mtd/fsmc.h>
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#include <linux/mtd/onenand.h>
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#include <linux/mtd/partitions.h>
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#include <linux/i2c.h>
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#include <linux/io.h>
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#include <linux/pinctrl/machine.h>
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#include <linux/platform_data/pinctrl-nomadik.h>
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#include <linux/platform_data/clocksource-nomadik-mtu.h>
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#include <linux/platform_data/mtd-nomadik-nand.h>
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#include <asm/hardware/vic.h>
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#include <asm/sizes.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/flash.h>
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#include <asm/mach/time.h>
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#include <mach/irqs.h>
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#include "cpu-8815.h"
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/* Initial value for SRC control register: all timers use MXTAL/8 source */
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#define SRC_CR_INIT_MASK 0x00007fff
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#define SRC_CR_INIT_VAL 0x2aaa8000
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#define ALE_OFF 0x1000000
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#define CLE_OFF 0x800000
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/* These addresses span 16MB, so use three individual pages */
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static struct resource nhk8815_nand_resources[] = {
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{
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.name = "nand_data",
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.start = 0x40000000,
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.end = 0x40000000 + SZ_16K - 1,
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.flags = IORESOURCE_MEM,
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}, {
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.name = "nand_addr",
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.start = 0x40000000 + ALE_OFF,
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.end = 0x40000000 +ALE_OFF + SZ_16K - 1,
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.flags = IORESOURCE_MEM,
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}, {
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.name = "nand_cmd",
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.start = 0x40000000 + CLE_OFF,
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.end = 0x40000000 + CLE_OFF + SZ_16K - 1,
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.flags = IORESOURCE_MEM,
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}, {
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.name = "fsmc_regs",
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.start = NOMADIK_FSMC_BASE,
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.end = NOMADIK_FSMC_BASE + SZ_4K - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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/*
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* These partitions are the same as those used in the 2.6.20 release
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* shipped by the vendor; the first two partitions are mandated
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* by the boot ROM, and the bootloader area is somehow oversized...
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*/
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static struct mtd_partition nhk8815_partitions[] = {
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{
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.name = "X-Loader(NAND)",
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.offset = 0,
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.size = SZ_256K,
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}, {
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.name = "MemInit(NAND)",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_256K,
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}, {
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.name = "BootLoader(NAND)",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_2M,
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}, {
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.name = "Kernel zImage(NAND)",
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.offset = MTDPART_OFS_APPEND,
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.size = 3 * SZ_1M,
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}, {
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.name = "Root Filesystem(NAND)",
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.offset = MTDPART_OFS_APPEND,
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.size = 22 * SZ_1M,
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}, {
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.name = "User Filesystem(NAND)",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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}
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};
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static struct fsmc_nand_timings nhk8815_nand_timings = {
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.thiz = 0,
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.thold = 0x10,
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.twait = 0x0A,
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.tset = 0,
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};
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static struct fsmc_nand_platform_data nhk8815_nand_platform_data = {
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.nand_timings = &nhk8815_nand_timings,
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.partitions = nhk8815_partitions,
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.nr_partitions = ARRAY_SIZE(nhk8815_partitions),
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.width = FSMC_NAND_BW8,
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};
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static struct platform_device nhk8815_nand_device = {
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.name = "fsmc-nand",
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.id = -1,
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.resource = nhk8815_nand_resources,
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.num_resources = ARRAY_SIZE(nhk8815_nand_resources),
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.dev = {
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.platform_data = &nhk8815_nand_platform_data,
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},
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};
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/* These are the partitions for the OneNand device, different from above */
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static struct mtd_partition nhk8815_onenand_partitions[] = {
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{
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.name = "X-Loader(OneNAND)",
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.offset = 0,
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.size = SZ_256K,
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}, {
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.name = "MemInit(OneNAND)",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_256K,
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}, {
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.name = "BootLoader(OneNAND)",
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.offset = MTDPART_OFS_APPEND,
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.size = SZ_2M-SZ_256K,
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}, {
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.name = "SysImage(OneNAND)",
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.offset = MTDPART_OFS_APPEND,
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.size = 4 * SZ_1M,
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}, {
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.name = "Root Filesystem(OneNAND)",
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.offset = MTDPART_OFS_APPEND,
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.size = 22 * SZ_1M,
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}, {
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.name = "User Filesystem(OneNAND)",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL,
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}
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};
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static struct onenand_platform_data nhk8815_onenand_data = {
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.parts = nhk8815_onenand_partitions,
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.nr_parts = ARRAY_SIZE(nhk8815_onenand_partitions),
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};
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static struct resource nhk8815_onenand_resource[] = {
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{
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.start = 0x30000000,
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.end = 0x30000000 + SZ_128K - 1,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device nhk8815_onenand_device = {
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.name = "onenand-flash",
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.id = -1,
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.dev = {
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.platform_data = &nhk8815_onenand_data,
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},
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.resource = nhk8815_onenand_resource,
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.num_resources = ARRAY_SIZE(nhk8815_onenand_resource),
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};
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/* bus control reg. and bus timing reg. for CS0..CS3 */
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#define FSMC_BCR(x) (NOMADIK_FSMC_VA + (x << 3))
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#define FSMC_BTR(x) (NOMADIK_FSMC_VA + (x << 3) + 0x04)
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static void __init nhk8815_onenand_init(void)
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{
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#ifdef CONFIG_MTD_ONENAND
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/* Set up SMCS0 for OneNand */
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writel(0x000030db, FSMC_BCR(0));
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writel(0x02100551, FSMC_BTR(0));
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#endif
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}
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static struct mmci_platform_data mmcsd_plat_data = {
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.ocr_mask = MMC_VDD_29_30,
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.f_max = 48000000,
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.gpio_wp = -1,
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.gpio_cd = 111,
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.cd_invert = true,
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.capabilities = MMC_CAP_MMC_HIGHSPEED |
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MMC_CAP_SD_HIGHSPEED | MMC_CAP_4_BIT_DATA,
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};
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static int __init nhk8815_mmcsd_init(void)
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{
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int ret;
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ret = gpio_request(112, "card detect bias");
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if (ret)
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return ret;
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gpio_direction_output(112, 0);
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amba_apb_device_add(NULL, "mmci", NOMADIK_SDI_BASE, SZ_4K, IRQ_SDMMC, 0, &mmcsd_plat_data, 0x10180180);
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return 0;
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}
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module_init(nhk8815_mmcsd_init);
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static struct resource nhk8815_eth_resources[] = {
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{
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.name = "smc91x-regs",
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.start = 0x34000000 + 0x300,
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.end = 0x34000000 + SZ_64K - 1,
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.flags = IORESOURCE_MEM,
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}, {
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.start = NOMADIK_GPIO_TO_IRQ(115),
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.end = NOMADIK_GPIO_TO_IRQ(115),
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.flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
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}
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};
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static struct platform_device nhk8815_eth_device = {
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.name = "smc91x",
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.resource = nhk8815_eth_resources,
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.num_resources = ARRAY_SIZE(nhk8815_eth_resources),
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};
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static int __init nhk8815_eth_init(void)
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{
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int gpio_nr = 115; /* hardwired in the board */
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int err;
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err = gpio_request(gpio_nr, "eth_irq");
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if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
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if (!err) err = gpio_direction_input(gpio_nr);
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if (err)
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pr_err("Error %i in %s\n", err, __func__);
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return err;
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}
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device_initcall(nhk8815_eth_init);
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static struct platform_device *nhk8815_platform_devices[] __initdata = {
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&nhk8815_nand_device,
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&nhk8815_onenand_device,
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&nhk8815_eth_device,
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/* will add more devices */
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};
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static void __init nomadik_timer_init(void)
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{
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u32 src_cr;
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/* Configure timer sources in "system reset controller" ctrl reg */
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src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
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src_cr &= SRC_CR_INIT_MASK;
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src_cr |= SRC_CR_INIT_VAL;
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writel(src_cr, io_p2v(NOMADIK_SRC_BASE));
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nmdk_timer_init(io_p2v(NOMADIK_MTU0_BASE), IRQ_MTU0);
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}
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static struct sys_timer nomadik_timer = {
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.init = nomadik_timer_init,
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};
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static struct i2c_board_info __initdata nhk8815_i2c0_devices[] = {
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{
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I2C_BOARD_INFO("stw4811", 0x2d),
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},
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};
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static struct i2c_board_info __initdata nhk8815_i2c1_devices[] = {
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{
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I2C_BOARD_INFO("camera", 0x10),
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},
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{
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I2C_BOARD_INFO("stw5095", 0x1a),
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},
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{
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I2C_BOARD_INFO("lis3lv02dl", 0x1d),
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},
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};
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static struct i2c_board_info __initdata nhk8815_i2c2_devices[] = {
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{
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I2C_BOARD_INFO("stw4811-usb", 0x2d),
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},
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};
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static unsigned long out_low[] = { PIN_OUTPUT_LOW };
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static unsigned long out_high[] = { PIN_OUTPUT_HIGH };
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static unsigned long in_nopull[] = { PIN_INPUT_NOPULL };
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static unsigned long in_pullup[] = { PIN_INPUT_PULLUP };
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static struct pinctrl_map __initdata nhk8815_pinmap[] = {
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PIN_MAP_MUX_GROUP_DEFAULT("uart0", "pinctrl-stn8815", "u0_a_1", "u0"),
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PIN_MAP_MUX_GROUP_DEFAULT("uart1", "pinctrl-stn8815", "u1_a_1", "u1"),
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/* Hog in MMC/SD card mux */
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PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-stn8815", "mmcsd_a_1", "mmcsd"),
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/* MCCLK */
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PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO8_B10", out_low),
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/* MCCMD */
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PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO9_A10", in_pullup),
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/* MCCMDDIR */
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PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO10_C11", out_high),
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/* MCDAT3-0 */
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PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO11_B11", in_pullup),
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PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO12_A11", in_pullup),
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PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO13_C12", in_pullup),
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PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO14_B12", in_pullup),
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/* MCDAT0DIR */
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PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO15_A12", out_high),
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/* MCDAT31DIR */
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PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO16_C13", out_high),
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/* MCMSFBCLK */
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PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO24_C15", in_pullup),
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/* CD input GPIO */
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PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO111_H21", in_nopull),
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/* CD bias drive */
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PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO112_J21", out_low),
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};
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static void __init nhk8815_platform_init(void)
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{
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pinctrl_register_mappings(nhk8815_pinmap, ARRAY_SIZE(nhk8815_pinmap));
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cpu8815_platform_init();
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nhk8815_onenand_init();
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platform_add_devices(nhk8815_platform_devices,
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ARRAY_SIZE(nhk8815_platform_devices));
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amba_apb_device_add(NULL, "uart0", NOMADIK_UART0_BASE, SZ_4K, IRQ_UART0, 0, NULL, 0);
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amba_apb_device_add(NULL, "uart1", NOMADIK_UART1_BASE, SZ_4K, IRQ_UART1, 0, NULL, 0);
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i2c_register_board_info(0, nhk8815_i2c0_devices,
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ARRAY_SIZE(nhk8815_i2c0_devices));
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i2c_register_board_info(1, nhk8815_i2c1_devices,
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ARRAY_SIZE(nhk8815_i2c1_devices));
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i2c_register_board_info(2, nhk8815_i2c2_devices,
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ARRAY_SIZE(nhk8815_i2c2_devices));
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}
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MACHINE_START(NOMADIK, "NHK8815")
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/* Maintainer: ST MicroElectronics */
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.atag_offset = 0x100,
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.map_io = cpu8815_map_io,
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.init_irq = cpu8815_init_irq,
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.handle_irq = vic_handle_irq,
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.timer = &nomadik_timer,
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.init_machine = nhk8815_platform_init,
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.restart = cpu8815_restart,
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MACHINE_END
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