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/gpio.h>
15 #include <linux/mtd/partitions.h>
16 #include <linux/mtd/physmap.h>
17 #include <linux/mtd/nand-gpio.h>
19 #include <linux/spi/spi.h>
21 #include <asm/mach/arch.h>
22 #include <asm/mach-types.h>
23 #include <asm/mach/map.h>
25 #include <mach/pxa2xx-regs.h>
26 #include <mach/mfp-pxa25x.h>
27 #include <mach/pxa2xx_spi.h>
28 #include <mach/bitfield.h>
32 #define GPIO_NAND_CS (5)
33 #define GPIO_NAND_ALE (4)
34 #define GPIO_NAND_CLE (3)
35 #define GPIO_NAND_RB (10)
37 static unsigned long cmx255_pin_config
[] = {
40 GPIO29_AC97_SDATA_IN_0
,
41 GPIO30_AC97_SDATA_OUT
,
100 /* SDRAM and local bus */
109 GPIO0_GPIO
| WAKEUP_ON_EDGE_BOTH
,
110 GPIO9_GPIO
, /* PC card reset */
113 GPIO5_GPIO
| MFP_LPM_DRIVE_HIGH
, /* NAND CE# */
114 GPIO4_GPIO
| MFP_LPM_DRIVE_LOW
, /* NAND ALE */
115 GPIO3_GPIO
| MFP_LPM_DRIVE_LOW
, /* NAND CLE */
116 GPIO10_GPIO
, /* NAND Ready/Busy */
119 GPIO22_GPIO
, /* DM9000 interrupt */
122 #if defined(CONFIG_SPI_PXA2XX)
123 static struct pxa2xx_spi_master pxa_ssp_master_info
= {
127 static struct spi_board_info spi_board_info
[] __initdata
= {
129 .modalias
= "rtc-max6902",
130 .max_speed_hz
= 1000000,
136 static void __init
cmx255_init_rtc(void)
138 pxa2xx_set_spi_info(1, &pxa_ssp_master_info
);
139 spi_register_board_info(ARRAY_AND_SIZE(spi_board_info
));
142 static inline void cmx255_init_rtc(void) {}
145 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
146 static struct mtd_partition cmx255_nor_partitions
[] = {
151 .mask_flags
= MTD_WRITEABLE
/* force read-only */
153 .name
= "ARMmon setup block",
155 .offset
= MTDPART_OFS_APPEND
,
156 .mask_flags
= MTD_WRITEABLE
/* force read-only */
160 .offset
= MTDPART_OFS_APPEND
,
163 .size
= MTDPART_SIZ_FULL
,
164 .offset
= MTDPART_OFS_APPEND
168 static struct physmap_flash_data cmx255_nor_flash_data
[] = {
170 .width
= 2, /* bankwidth in bytes */
171 .parts
= cmx255_nor_partitions
,
172 .nr_parts
= ARRAY_SIZE(cmx255_nor_partitions
)
176 static struct resource cmx255_nor_resource
= {
177 .start
= PXA_CS0_PHYS
,
178 .end
= PXA_CS0_PHYS
+ SZ_8M
- 1,
179 .flags
= IORESOURCE_MEM
,
182 static struct platform_device cmx255_nor
= {
183 .name
= "physmap-flash",
186 .platform_data
= cmx255_nor_flash_data
,
188 .resource
= &cmx255_nor_resource
,
192 static void __init
cmx255_init_nor(void)
194 platform_device_register(&cmx255_nor
);
197 static inline void cmx255_init_nor(void) {}
200 #if defined(CONFIG_MTD_NAND_GPIO) || defined(CONFIG_MTD_NAND_GPIO_MODULE)
201 static struct resource cmx255_nand_resource
[] = {
203 .start
= PXA_CS1_PHYS
,
204 .end
= PXA_CS1_PHYS
+ 11,
205 .flags
= IORESOURCE_MEM
,
208 .start
= PXA_CS5_PHYS
,
209 .end
= PXA_CS5_PHYS
+ 3,
210 .flags
= IORESOURCE_MEM
,
214 static struct mtd_partition cmx255_nand_parts
[] = {
216 .name
= "cmx255-nand",
217 .size
= MTDPART_SIZ_FULL
,
222 static struct gpio_nand_platdata cmx255_nand_platdata
= {
223 .gpio_nce
= GPIO_NAND_CS
,
224 .gpio_cle
= GPIO_NAND_CLE
,
225 .gpio_ale
= GPIO_NAND_ALE
,
226 .gpio_rdy
= GPIO_NAND_RB
,
228 .parts
= cmx255_nand_parts
,
229 .num_parts
= ARRAY_SIZE(cmx255_nand_parts
),
233 static struct platform_device cmx255_nand
= {
235 .num_resources
= ARRAY_SIZE(cmx255_nand_resource
),
236 .resource
= cmx255_nand_resource
,
239 .platform_data
= &cmx255_nand_platdata
,
243 static void __init
cmx255_init_nand(void)
245 platform_device_register(&cmx255_nand
);
248 static inline void cmx255_init_nand(void) {}
251 void __init
cmx255_init(void)
253 pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx255_pin_config
));