diff options
Diffstat (limited to 'arch/arm/mach-pxa/cm-x255.c')
| -rw-r--r-- | arch/arm/mach-pxa/cm-x255.c | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/cm-x255.c b/arch/arm/mach-pxa/cm-x255.c new file mode 100644 index 000000000..fa8e7dd4d --- /dev/null +++ b/arch/arm/mach-pxa/cm-x255.c @@ -0,0 +1,243 @@ +/* + * 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/gpio/machine.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 "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 gpiod_lookup_table cmx255_nand_gpiod_table = { + .dev_id = "gpio-nand", + .table = { + GPIO_LOOKUP("gpio-pxa", GPIO_NAND_CS, "nce", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-pxa", GPIO_NAND_CLE, "cle", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-pxa", GPIO_NAND_ALE, "ale", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-pxa", GPIO_NAND_RB, "rdy", GPIO_ACTIVE_HIGH), + }, +}; + +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 = { + .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) +{ + gpiod_add_lookup_table(&cmx255_nand_gpiod_table); + 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(); +} |