renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-21 19:53:59 +08:00
Code
689b4febec
linux-next/arch/arm/mach-pxa/imote2.c
Eric Miao 51c62982a3 [ARM] pxa: introduce pxa{25x,27x,300,320,930}.h for board usage 
Considering the header mess ATM, it is not always possible to include
the correct header files within board code. Let's keep this simple:

  <mach/pxa25x.h>  - for pxa25x based platforms
  <mach/pxa27x.h>  - for pxa27x based platforms
  <mach/pxa300.h>  - for pxa300 based platforms
  <mach/pxa320.h>  - for pxa320 based platforms
  <mach/pxa930.h>  - for pxa930 based platforms

NOTE:

1. one header one board file, they are not compatible (i.e. they have
   conflicting definitions which won't compile if included together).

2. Unless strictly necessary, the following header files are considered
   to be SoC files use _only_, and is not recommended to be included in
   board code:

    <mach/hardware.h>
    <mach/pxa-regs.h>
    <mach/pxa2xx-regs.h>
    <mach/pxa3xx-regs.h>
    <mach/mfp.h>
    <mach/mfp-pxa2xx.h>
    <mach/mfp-pxa25x.h>
    <mach/mfp-pxa27x.h>
    <mach/mfp-pxa3xx.h>
    <mach/mfp-pxa300.h>
    <mach/mfp-pxa320.h>
    <mach/mfp-pxa930.h>

Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-03-09 21:22:36 +08:00

573 lines
13 KiB
C
Raw Blame History

/*
* 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/pxa27x.h>
#include <mach/i2c.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
View Git Blame Copy Permalink