2 * linux/arch/arm/mach-pxa/cm-x255.c
4 * Copyright (C) 2007, 2008 CompuLab, Ltd.
5 * Mike Rapoport <mike@compulab.co.il>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
12 #include <linux/platform_device.h>
13 #include <linux/irq.h>
14 #include <linux/mtd/partitions.h>
15 #include <linux/mtd/physmap.h>
16 #include <linux/mtd/nand-gpio.h>
17 #include <linux/gpio/machine.h>
18 #include <linux/spi/spi.h>
19 #include <linux/spi/pxa2xx_spi.h>
21 #include <asm/mach/arch.h>
22 #include <asm/mach-types.h>
23 #include <asm/mach/map.h>
29 #define GPIO_NAND_CS (5)
30 #define GPIO_NAND_ALE (4)
31 #define GPIO_NAND_CLE (3)
32 #define GPIO_NAND_RB (10)
34 static unsigned long cmx255_pin_config[] = {
37 GPIO29_AC97_SDATA_IN_0,
38 GPIO30_AC97_SDATA_OUT,
78 /* SDRAM and local bus */
87 GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,
88 GPIO9_GPIO, /* PC card reset */
91 GPIO5_GPIO | MFP_LPM_DRIVE_HIGH, /* NAND CE# */
92 GPIO4_GPIO | MFP_LPM_DRIVE_LOW, /* NAND ALE */
93 GPIO3_GPIO | MFP_LPM_DRIVE_LOW, /* NAND CLE */
94 GPIO10_GPIO, /* NAND Ready/Busy */
97 GPIO22_GPIO, /* DM9000 interrupt */
100 #if defined(CONFIG_SPI_PXA2XX)
101 static struct pxa2xx_spi_controller pxa_ssp_master_info = {
105 static struct spi_board_info spi_board_info[] __initdata = {
107 .modalias = "rtc-max6902",
108 .max_speed_hz = 1000000,
114 static void __init cmx255_init_rtc(void)
116 pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
117 spi_register_board_info(ARRAY_AND_SIZE(spi_board_info));
120 static inline void cmx255_init_rtc(void) {}
123 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
124 static struct mtd_partition cmx255_nor_partitions[] = {
129 .mask_flags = MTD_WRITEABLE /* force read-only */
131 .name = "ARMmon setup block",
133 .offset = MTDPART_OFS_APPEND,
134 .mask_flags = MTD_WRITEABLE /* force read-only */
138 .offset = MTDPART_OFS_APPEND,
141 .size = MTDPART_SIZ_FULL,
142 .offset = MTDPART_OFS_APPEND
146 static struct physmap_flash_data cmx255_nor_flash_data[] = {
148 .width = 2, /* bankwidth in bytes */
149 .parts = cmx255_nor_partitions,
150 .nr_parts = ARRAY_SIZE(cmx255_nor_partitions)
154 static struct resource cmx255_nor_resource = {
155 .start = PXA_CS0_PHYS,
156 .end = PXA_CS0_PHYS + SZ_8M - 1,
157 .flags = IORESOURCE_MEM,
160 static struct platform_device cmx255_nor = {
161 .name = "physmap-flash",
164 .platform_data = cmx255_nor_flash_data,
166 .resource = &cmx255_nor_resource,
170 static void __init cmx255_init_nor(void)
172 platform_device_register(&cmx255_nor);
175 static inline void cmx255_init_nor(void) {}
178 #if defined(CONFIG_MTD_NAND_GPIO) || defined(CONFIG_MTD_NAND_GPIO_MODULE)
180 static struct gpiod_lookup_table cmx255_nand_gpiod_table = {
181 .dev_id = "gpio-nand",
183 GPIO_LOOKUP("gpio-pxa", GPIO_NAND_CS, "nce", GPIO_ACTIVE_HIGH),
184 GPIO_LOOKUP("gpio-pxa", GPIO_NAND_CLE, "cle", GPIO_ACTIVE_HIGH),
185 GPIO_LOOKUP("gpio-pxa", GPIO_NAND_ALE, "ale", GPIO_ACTIVE_HIGH),
186 GPIO_LOOKUP("gpio-pxa", GPIO_NAND_RB, "rdy", GPIO_ACTIVE_HIGH),
190 static struct resource cmx255_nand_resource[] = {
192 .start = PXA_CS1_PHYS,
193 .end = PXA_CS1_PHYS + 11,
194 .flags = IORESOURCE_MEM,
197 .start = PXA_CS5_PHYS,
198 .end = PXA_CS5_PHYS + 3,
199 .flags = IORESOURCE_MEM,
203 static struct mtd_partition cmx255_nand_parts[] = {
205 .name = "cmx255-nand",
206 .size = MTDPART_SIZ_FULL,
211 static struct gpio_nand_platdata cmx255_nand_platdata = {
212 .parts = cmx255_nand_parts,
213 .num_parts = ARRAY_SIZE(cmx255_nand_parts),
217 static struct platform_device cmx255_nand = {
219 .num_resources = ARRAY_SIZE(cmx255_nand_resource),
220 .resource = cmx255_nand_resource,
223 .platform_data = &cmx255_nand_platdata,
227 static void __init cmx255_init_nand(void)
229 gpiod_add_lookup_table(&cmx255_nand_gpiod_table);
230 platform_device_register(&cmx255_nand);
233 static inline void cmx255_init_nand(void) {}
236 void __init cmx255_init(void)
238 pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx255_pin_config));