diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-pxa/Kconfig | 6 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/imote2.c | 575 | ||||
| -rw-r--r-- | arch/arm/mach-pxa/include/mach/uncompress.h | 2 |
4 files changed, 584 insertions, 1 deletions
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index 0b7f145dd41..94e3adbecd0 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -42,6 +42,12 @@ config GUMSTIX_AM200EPD endchoice +config MACH_INTELMOTE2 + bool "Intel Mote 2 Platform" + select PXA27x + select IWMMXT + select PXA_HAVE_BOARD_IRQS + config ARCH_LUBBOCK bool "Intel DBPXA250 Development Platform" select PXA25x diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile index 26464451921..7b28bb561d6 100644 --- a/arch/arm/mach-pxa/Makefile +++ b/arch/arm/mach-pxa/Makefile @@ -70,6 +70,8 @@ obj-$(CONFIG_MACH_ARMCORE) += cm-x2xx.o cm-x255.o cm-x270.o obj-$(CONFIG_MACH_CM_X300) += cm-x300.o obj-$(CONFIG_PXA_EZX) += ezx.o +obj-$(CONFIG_MACH_INTELMOTE2) += imote2.o + # Support for blinky lights led-y := leds.o led-$(CONFIG_ARCH_LUBBOCK) += leds-lubbock.o diff --git a/arch/arm/mach-pxa/imote2.c b/arch/arm/mach-pxa/imote2.c new file mode 100644 index 00000000000..364c5e27133 --- /dev/null +++ b/arch/arm/mach-pxa/imote2.c @@ -0,0 +1,575 @@ +/* + * linux/arch/arm/mach-pxa/imote2.c + * + * Author: Ed C. Epp + * Created: Nov 05, 2002 + * Copyright: Intel Corp. + * + * Modified 2008: Jonathan Cameron + * + * The Imote2 is a wireless sensor node platform sold + * by Crossbow (www.xbow.com). + */ + +#include <linux/init.h> +#include <linux/device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/platform_device.h> +#include <linux/regulator/machine.h> +#include <linux/gpio.h> +#include <linux/leds.h> +#include <linux/spi/spi.h> +#include <linux/i2c.h> +#include <linux/mfd/da903x.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/flash.h> + +#include <mach/i2c.h> +#include <mach/pxa-regs.h> +#include <mach/pxa2xx-regs.h> +#include <mach/mfp-pxa27x.h> +#include <mach/regs-ssp.h> +#include <mach/udc.h> +#include <mach/mmc.h> +#include <mach/pxa2xx_spi.h> +#include <mach/pxa27x-udc.h> + +#include "devices.h" +#include "generic.h" + +static unsigned long imote2_pin_config[] __initdata = { + + /* Device Identification for wakeup*/ + GPIO102_GPIO, + + /* Button */ + GPIO91_GPIO, + + /* DA9030 */ + GPIO1_GPIO, + + /* MMC */ + GPIO32_MMC_CLK, + GPIO112_MMC_CMD, + GPIO92_MMC_DAT_0, + GPIO109_MMC_DAT_1, + GPIO110_MMC_DAT_2, + GPIO111_MMC_DAT_3, + + /* 802.15.4 radio - driver out of mainline */ + GPIO22_GPIO, /* CC_RSTN */ + GPIO114_GPIO, /* CC_FIFO */ + GPIO116_GPIO, /* CC_CCA */ + GPIO0_GPIO, /* CC_FIFOP */ + GPIO16_GPIO, /* CCSFD */ + GPIO39_GPIO, /* CSn */ + GPIO115_GPIO, /* Power enable */ + + /* I2C */ + GPIO117_I2C_SCL, + GPIO118_I2C_SDA, + + /* SSP 3 - 802.15.4 radio */ + GPIO39_GPIO, /* Chip Select */ + GPIO34_SSP3_SCLK, + GPIO35_SSP3_TXD, + GPIO41_SSP3_RXD, + + /* SSP 2 - to daughter boards */ + GPIO37_GPIO, /* Chip Select */ + GPIO36_SSP2_SCLK, + GPIO38_SSP2_TXD, + GPIO11_SSP2_RXD, + + /* SSP 1 - to daughter boards */ + GPIO24_GPIO, /* Chip Select */ + GPIO23_SSP1_SCLK, + GPIO25_SSP1_TXD, + GPIO26_SSP1_RXD, + + /* BTUART Basic Connector*/ + GPIO42_BTUART_RXD, + GPIO43_BTUART_TXD, + GPIO44_BTUART_CTS, + GPIO45_BTUART_RTS, + + /* STUART Serial console via debug board*/ + GPIO46_STUART_RXD, + GPIO47_STUART_TXD, + + /* Basic sensor board */ + GPIO96_GPIO, /* accelerometer interrupt */ + GPIO99_GPIO, /* ADC interrupt */ + + /* Connector pins specified as gpios */ + GPIO94_GPIO, /* large basic connector pin 14 */ + GPIO10_GPIO, /* large basic connector pin 23 */ + + /* LEDS */ + GPIO103_GPIO, /* red led */ + GPIO104_GPIO, /* green led */ + GPIO105_GPIO, /* blue led */ +}; + +static struct gpio_led imote2_led_pins[] = { + { + .name = "imote2:red", + .gpio = 103, + .active_low = 1, + }, { + .name = "imote2:green", + .gpio = 104, + .active_low = 1, + }, { + .name = "imote2:blue", + .gpio = 105, + .active_low = 1, + }, +}; + +static struct gpio_led_platform_data imote2_led_data = { + .num_leds = ARRAY_SIZE(imote2_led_pins), + .leds = imote2_led_pins, +}; + +static struct platform_device imote2_leds = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &imote2_led_data, + }, +}; + +/* Reverse engineered partly from Platformx drivers */ +enum imote2_ldos{ + vcc_vref, + vcc_cc2420, + vcc_mica, + vcc_bt, + /* The two voltages available to sensor boards */ + vcc_sensor_1_8, + vcc_sensor_3, + + vcc_sram_ext, /* directly connected to the pxa271 */ + vcc_pxa_pll, + vcc_pxa_usim, /* Reference voltage for certain gpios */ + vcc_pxa_mem, + vcc_pxa_flash, + vcc_pxa_core, /*Dc-Dc buck not yet supported */ + vcc_lcd, + vcc_bb, + vcc_bbio, + vcc_io, /* cc2420 802.15.4 radio and pxa vcc_io ?*/ +}; + +/* The values of the various regulator constraints are obviously dependent + * on exactly what is wired to each ldo. Unfortunately this information is + * not generally available. More information has been requested from Xbow + * but as of yet they haven't been forthcoming. + * + * Some of these are clearly Stargate 2 related (no way of plugging + * in an lcd on the IM2 for example!). + */ +static struct regulator_init_data imote2_ldo_init_data[] = { + [vcc_bbio] = { + .constraints = { /* board default 1.8V */ + .name = "vcc_bbio", + .min_uV = 1800000, + .max_uV = 1800000, + }, + }, + [vcc_bb] = { + .constraints = { /* board default 2.8V */ + .name = "vcc_bb", + .min_uV = 2700000, + .max_uV = 3000000, + }, + }, + [vcc_pxa_flash] = { + .constraints = {/* default is 1.8V */ + .name = "vcc_pxa_flash", + .min_uV = 1800000, + .max_uV = 1800000, + }, + }, + [vcc_cc2420] = { /* also vcc_io */ + .constraints = { + /* board default is 2.8V */ + .name = "vcc_cc2420", + .min_uV = 2700000, + .max_uV = 3300000, + }, + }, + [vcc_vref] = { /* Reference for what? */ + .constraints = { /* default 1.8V */ + .name = "vcc_vref", + .min_uV = 1800000, + .max_uV = 1800000, + }, + }, + [vcc_sram_ext] = { + .constraints = { /* default 2.8V */ + .name = "vcc_sram_ext", + .min_uV = 2800000, + .max_uV = 2800000, + }, + }, + [vcc_mica] = { + .constraints = { /* default 2.8V */ + .name = "vcc_mica", + .min_uV = 2800000, + .max_uV = 2800000, + }, + }, + [vcc_bt] = { + .constraints = { /* default 2.8V */ + .name = "vcc_bt", + .min_uV = 2800000, + .max_uV = 2800000, + }, + }, + [vcc_lcd] = { + .constraints = { /* default 2.8V */ + .name = "vcc_lcd", + .min_uV = 2700000, + .max_uV = 3300000, + }, + }, + [vcc_io] = { /* Same or higher than everything + * bar vccbat and vccusb */ + .constraints = { /* default 2.8V */ + .name = "vcc_io", + .min_uV = 2692000, + .max_uV = 3300000, + }, + }, + [vcc_sensor_1_8] = { + .constraints = { /* default 1.8V */ + .name = "vcc_sensor_1_8", + .min_uV = 1800000, + .max_uV = 1800000, + }, + }, + [vcc_sensor_3] = { /* curiously default 2.8V */ + .constraints = { + .name = "vcc_sensor_3", + .min_uV = 2800000, + .max_uV = 3000000, + }, + }, + [vcc_pxa_pll] = { /* 1.17V - 1.43V, default 1.3V*/ + .constraints = { + .name = "vcc_pxa_pll", + .min_uV = 1170000, + .max_uV = 1430000, + }, + }, + [vcc_pxa_usim] = { + .constraints = { /* default 1.8V */ + .name = "vcc_pxa_usim", + .min_uV = 1710000, + .max_uV = 2160000, + }, + }, + [vcc_pxa_mem] = { + .constraints = { /* default 1.8V */ + .name = "vcc_pxa_mem", + .min_uV = 1800000, + .max_uV = 1800000, + }, + }, +}; + +static struct da903x_subdev_info imote2_da9030_subdevs[] = { + { + .name = "da903x-regulator", + .id = DA9030_ID_LDO2, + .platform_data = &imote2_ldo_init_data[vcc_bbio], + }, { + .name = "da903x-regulator", + .id = DA9030_ID_LDO3, + .platform_data = &imote2_ldo_init_data[vcc_bb], + }, { + .name = "da903x-regulator", + .id = DA9030_ID_LDO4, + .platform_data = &imote2_ldo_init_data[vcc_pxa_flash], + }, { + .name = "da903x-regulator", + .id = DA9030_ID_LDO5, + .platform_data = &imote2_ldo_init_data[vcc_cc2420], + }, { + .name = "da903x-regulator", + .id = DA9030_ID_LDO6, + .platform_data = &imote2_ldo_init_data[vcc_vref], + }, { + .name = "da903x-regulator", + .id = DA9030_ID_LDO7, + .platform_data = &imote2_ldo_init_data[vcc_sram_ext], + }, { + .name = "da903x-regulator", + .id = DA9030_ID_LDO8, + .platform_data = &imote2_ldo_init_data[vcc_mica], + }, { + .name = "da903x-regulator", + .id = DA9030_ID_LDO9, + .platform_data = &imote2_ldo_init_data[vcc_bt], + }, { + .name = "da903x-regulator", + .id = DA9030_ID_LDO10, + .platform_data = &imote2_ldo_init_data[vcc_sensor_1_8], + }, { + .name = "da903x-regulator", + .id = DA9030_ID_LDO11, + .platform_data = &imote2_ldo_init_data[vcc_sensor_3], + }, { + .name = "da903x-regulator", + .id = DA9030_ID_LDO12, + .platform_data = &imote2_ldo_init_data[vcc_lcd], + }, { + .name = "da903x-regulator", + .id = DA9030_ID_LDO15, + .platform_data = &imote2_ldo_init_data[vcc_pxa_pll], + }, { + .name = "da903x-regulator", + .id = DA9030_ID_LDO17, + .platform_data = &imote2_ldo_init_data[vcc_pxa_usim], + }, { + .name = "da903x-regulator", + .id = DA9030_ID_LDO18, + .platform_data = &imote2_ldo_init_data[vcc_io], + }, { + .name = "da903x-regulator", + .id = DA9030_ID_LDO19, + .platform_data = &imote2_ldo_init_data[vcc_pxa_mem], + }, +}; + +static struct da903x_platform_data imote2_da9030_pdata = { + .num_subdevs = ARRAY_SIZE(imote2_da9030_subdevs), + .subdevs = imote2_da9030_subdevs, +}; + +/* As the the imote2 doesn't currently have a conventional SD slot + * there is no option to hotplug cards, making all this rather simple + */ +static int imote2_mci_get_ro(struct device *dev) +{ + return 0; +} + +/* Rather simple case as hotplugging not possible */ +static struct pxamci_platform_data imote2_mci_platform_data = { + .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, /* default anyway */ + .get_ro = imote2_mci_get_ro, +}; + +static struct mtd_partition imote2flash_partitions[] = { + { + .name = "Bootloader", + .size = 0x00040000, + .offset = 0, + .mask_flags = MTD_WRITEABLE, + }, { + .name = "Kernel", + .size = 0x00200000, + .offset = 0x00040000, + .mask_flags = 0, + }, { + .name = "Filesystem", + .size = 0x01DC0000, + .offset = 0x00240000, + .mask_flags = 0, + }, +}; + +static struct resource flash_resources = { + .start = PXA_CS0_PHYS, + .end = PXA_CS0_PHYS + SZ_32M - 1, + .flags = IORESOURCE_MEM, +}; + +static struct flash_platform_data imote2_flash_data = { + .map_name = "cfi_probe", + .parts = imote2flash_partitions, + .nr_parts = ARRAY_SIZE(imote2flash_partitions), + .name = "PXA27xOnChipROM", + .width = 2, +}; + +static struct platform_device imote2_flash_device = { + .name = "pxa2xx-flash", + .id = 0, + .dev = { + .platform_data = &imote2_flash_data, + }, + .resource = &flash_resources, + .num_resources = 1, +}; + +/* Some of the drivers here are out of kernel at the moment (parts of IIO) + * and it may be a while before they are in the mainline. + */ +static struct i2c_board_info __initdata imote2_i2c_board_info[] = { + { /* UCAM sensor board */ + .type = "max1238", + .addr = 0x35, + }, { /* ITS400 Sensor board only */ + .type = "max1363", + .addr = 0x34, + /* Through a nand gate - Also beware, on V2 sensor board the + * pull up resistors are missing. + */ + .irq = IRQ_GPIO(99), + }, { /* ITS400 Sensor board only */ + .type = "tsl2561", + .addr = 0x49, + /* Through a nand gate - Also beware, on V2 sensor board the + * pull up resistors are missing. + */ + .irq = IRQ_GPIO(99), + }, { /* ITS400 Sensor board only */ + .type = "tmp175", + .addr = 0x4A, + .irq = IRQ_GPIO(96), + }, +}; + +static struct i2c_board_info __initdata imote2_pwr_i2c_board_info[] = { + { + .type = "da9030", + .addr = 0x49, + .platform_data = &imote2_da9030_pdata, + .irq = gpio_to_irq(1), + }, +}; + +static struct pxa2xx_spi_master pxa_ssp_master_0_info = { + .num_chipselect = 1, +}; + +static struct pxa2xx_spi_master pxa_ssp_master_1_info = { + .num_chipselect = 1, +}; + +static struct pxa2xx_spi_master pxa_ssp_master_2_info = { + .num_chipselect = 1, +}; + +/* Patch posted by Eric Miao <eric.miao@marvell.com> will remove + * the need for these functions. + */ +static void spi1control(u32 command) +{ + gpio_set_value(24, command & PXA2XX_CS_ASSERT ? 0 : 1); +}; + +static void spi3control(u32 command) +{ + gpio_set_value(39, command & PXA2XX_CS_ASSERT ? 0 : 1); +}; + +static struct pxa2xx_spi_chip staccel_chip_info = { + .tx_threshold = 8, + .rx_threshold = 8, + .dma_burst_size = 8, + .timeout = 235, + .cs_control = spi1control, +}; + +static struct pxa2xx_spi_chip cc2420_info = { + .tx_threshold = 8, + .rx_threshold = 8, + .dma_burst_size = 8, + .timeout = 235, + .cs_control = spi3control, +}; + +static struct spi_board_info spi_board_info[] __initdata = { + { /* Driver in IIO */ + .modalias = "lis3l02dq", + .max_speed_hz = 8000000,/* 8MHz max spi frequency at 3V */ + .bus_num = 1, + .chip_select = 0, + .controller_data = &staccel_chip_info, + .irq = IRQ_GPIO(96), + }, { /* Driver out of kernel as it needs considerable rewriting */ + .modalias = "cc2420", + .max_speed_hz = 6500000, + .bus_num = 3, + .chip_select = 0, + .controller_data = &cc2420_info, + }, +}; + +static void im2_udc_command(int cmd) +{ + switch (cmd) { + case PXA2XX_UDC_CMD_CONNECT: + UP2OCR |= UP2OCR_HXOE | UP2OCR_DPPUE | UP2OCR_DPPUBE; + break; + case PXA2XX_UDC_CMD_DISCONNECT: + UP2OCR &= ~(UP2OCR_HXOE | UP2OCR_DPPUE | UP2OCR_DPPUBE); + break; + } +} + +static struct pxa2xx_udc_mach_info imote2_udc_info __initdata = { + .udc_command = im2_udc_command, +}; + +static struct platform_device *imote2_devices[] = { + &imote2_flash_device, + &imote2_leds, +}; + +static struct i2c_pxa_platform_data i2c_pwr_pdata = { + .fast_mode = 1, +}; + +static struct i2c_pxa_platform_data i2c_pdata = { + .fast_mode = 1, +}; + +static void __init imote2_init(void) +{ + + pxa2xx_mfp_config(ARRAY_AND_SIZE(imote2_pin_config)); + /* SPI chip select directions - all other directions should + * be handled by drivers.*/ + gpio_direction_output(37, 0); + gpio_direction_output(24, 0); + gpio_direction_output(39, 0); + + platform_add_devices(imote2_devices, ARRAY_SIZE(imote2_devices)); + + pxa2xx_set_spi_info(1, &pxa_ssp_master_0_info); + pxa2xx_set_spi_info(2, &pxa_ssp_master_1_info); + pxa2xx_set_spi_info(3, &pxa_ssp_master_2_info); + + spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info)); + + i2c_register_board_info(0, imote2_i2c_board_info, + ARRAY_SIZE(imote2_i2c_board_info)); + i2c_register_board_info(1, imote2_pwr_i2c_board_info, + ARRAY_SIZE(imote2_pwr_i2c_board_info)); + + pxa27x_set_i2c_power_info(&i2c_pwr_pdata); + pxa_set_i2c_info(&i2c_pdata); + + pxa_set_mci_info(&imote2_mci_platform_data); + pxa_set_udc_info(&imote2_udc_info); +} + +MACHINE_START(INTELMOTE2, "IMOTE 2") + .phys_io = 0x40000000, + .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, + .map_io = pxa_map_io, + .init_irq = pxa27x_init_irq, + .timer = &pxa_timer, + .init_machine = imote2_init, + .boot_params = 0xA0000100, +MACHINE_END diff --git a/arch/arm/mach-pxa/include/mach/uncompress.h b/arch/arm/mach-pxa/include/mach/uncompress.h index a9a4f302b6e..f4b029c0395 100644 --- a/arch/arm/mach-pxa/include/mach/uncompress.h +++ b/arch/arm/mach-pxa/include/mach/uncompress.h @@ -35,7 +35,7 @@ static inline void flush(void) static inline void arch_decomp_setup(void) { - if (machine_is_littleton()) + if (machine_is_littleton() || machine_is_intelmote2()) UART = STUART; } |