cm-x255.c
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/*
* linux/arch/arm/mach-pxa/cm-x255.c
*
* Copyright (C) 2007, 2008 CompuLab, Ltd.
* Mike Rapoport <mike@compulab.co.il>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/nand-gpio.h>
#include <linux/spi/spi.h>
#include <linux/spi/pxa2xx_spi.h>
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
#include <asm/mach/map.h>
#include <mach/pxa25x.h>
#include "generic.h"
#define GPIO_NAND_CS (5)
#define GPIO_NAND_ALE (4)
#define GPIO_NAND_CLE (3)
#define GPIO_NAND_RB (10)
static unsigned long cmx255_pin_config[] = {
/* AC'97 */
GPIO28_AC97_BITCLK,
GPIO29_AC97_SDATA_IN_0,
GPIO30_AC97_SDATA_OUT,
GPIO31_AC97_SYNC,
/* BTUART */
GPIO42_BTUART_RXD,
GPIO43_BTUART_TXD,
GPIO44_BTUART_CTS,
GPIO45_BTUART_RTS,
/* STUART */
GPIO46_STUART_RXD,
GPIO47_STUART_TXD,
/* LCD */
GPIOxx_LCD_TFT_16BPP,
/* SSP1 */
GPIO23_SSP1_SCLK,
GPIO24_SSP1_SFRM,
GPIO25_SSP1_TXD,
GPIO26_SSP1_RXD,
/* SSP2 */
GPIO81_SSP2_CLK_OUT,
GPIO82_SSP2_FRM_OUT,
GPIO83_SSP2_TXD,
GPIO84_SSP2_RXD,
/* PC Card */
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO52_nPCE_1,
GPIO53_nPCE_2,
GPIO54_nPSKTSEL,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16,
/* SDRAM and local bus */
GPIO15_nCS_1,
GPIO78_nCS_2,
GPIO79_nCS_3,
GPIO80_nCS_4,
GPIO33_nCS_5,
GPIO18_RDY,
/* GPIO */
GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,
GPIO9_GPIO, /* PC card reset */
/* NAND controls */
GPIO5_GPIO | MFP_LPM_DRIVE_HIGH, /* NAND CE# */
GPIO4_GPIO | MFP_LPM_DRIVE_LOW, /* NAND ALE */
GPIO3_GPIO | MFP_LPM_DRIVE_LOW, /* NAND CLE */
GPIO10_GPIO, /* NAND Ready/Busy */
/* interrupts */
GPIO22_GPIO, /* DM9000 interrupt */
};
#if defined(CONFIG_SPI_PXA2XX)
static struct pxa2xx_spi_master pxa_ssp_master_info = {
.num_chipselect = 1,
};
static struct spi_board_info spi_board_info[] __initdata = {
[0] = {
.modalias = "rtc-max6902",
.max_speed_hz = 1000000,
.bus_num = 1,
.chip_select = 0,
},
};
static void __init cmx255_init_rtc(void)
{
pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
spi_register_board_info(ARRAY_AND_SIZE(spi_board_info));
}
#else
static inline void cmx255_init_rtc(void) {}
#endif
#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
static struct mtd_partition cmx255_nor_partitions[] = {
{
.name = "ARMmon",
.size = 0x00030000,
.offset = 0,
.mask_flags = MTD_WRITEABLE /* force read-only */
} , {
.name = "ARMmon setup block",
.size = 0x00010000,
.offset = MTDPART_OFS_APPEND,
.mask_flags = MTD_WRITEABLE /* force read-only */
} , {
.name = "kernel",
.size = 0x00160000,
.offset = MTDPART_OFS_APPEND,
} , {
.name = "ramdisk",
.size = MTDPART_SIZ_FULL,
.offset = MTDPART_OFS_APPEND
}
};
static struct physmap_flash_data cmx255_nor_flash_data[] = {
{
.width = 2, /* bankwidth in bytes */
.parts = cmx255_nor_partitions,
.nr_parts = ARRAY_SIZE(cmx255_nor_partitions)
}
};
static struct resource cmx255_nor_resource = {
.start = PXA_CS0_PHYS,
.end = PXA_CS0_PHYS + SZ_8M - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device cmx255_nor = {
.name = "physmap-flash",
.id = -1,
.dev = {
.platform_data = cmx255_nor_flash_data,
},
.resource = &cmx255_nor_resource,
.num_resources = 1,
};
static void __init cmx255_init_nor(void)
{
platform_device_register(&cmx255_nor);
}
#else
static inline void cmx255_init_nor(void) {}
#endif
#if defined(CONFIG_MTD_NAND_GPIO) || defined(CONFIG_MTD_NAND_GPIO_MODULE)
static struct resource cmx255_nand_resource[] = {
[0] = {
.start = PXA_CS1_PHYS,
.end = PXA_CS1_PHYS + 11,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = PXA_CS5_PHYS,
.end = PXA_CS5_PHYS + 3,
.flags = IORESOURCE_MEM,
},
};
static struct mtd_partition cmx255_nand_parts[] = {
[0] = {
.name = "cmx255-nand",
.size = MTDPART_SIZ_FULL,
.offset = 0,
},
};
static struct gpio_nand_platdata cmx255_nand_platdata = {
.gpio_nce = GPIO_NAND_CS,
.gpio_cle = GPIO_NAND_CLE,
.gpio_ale = GPIO_NAND_ALE,
.gpio_rdy = GPIO_NAND_RB,
.gpio_nwp = -1,
.parts = cmx255_nand_parts,
.num_parts = ARRAY_SIZE(cmx255_nand_parts),
.chip_delay = 25,
};
static struct platform_device cmx255_nand = {
.name = "gpio-nand",
.num_resources = ARRAY_SIZE(cmx255_nand_resource),
.resource = cmx255_nand_resource,
.id = -1,
.dev = {
.platform_data = &cmx255_nand_platdata,
}
};
static void __init cmx255_init_nand(void)
{
platform_device_register(&cmx255_nand);
}
#else
static inline void cmx255_init_nand(void) {}
#endif
void __init cmx255_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(cmx255_pin_config));
cmx255_init_rtc();
cmx255_init_nor();
cmx255_init_nand();
}