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linux-next/arch/arm/mach-pxa/poodle.c
Russell King cc155c6f2c [ARM] pxa: allow platforms to control which uarts are registered 
For some platforms, it is inappropriate to register all PXA UARTs.
In some cases, the UARTs may not be used, and in others we may want
to avoid registering the UARTs to allow other drivers (eg, FICP) to
make use of the UART.

In addition, a while back there was a request to be able to pass
platform data to the UART driver.

This patch enables all of this by providing functions platforms can
call to register each individual UART.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-12-01 09:02:55 +08:00

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/*
* linux/arch/arm/mach-pxa/poodle.c
*
* Support for the SHARP Poodle Board.
*
* Based on:
* linux/arch/arm/mach-pxa/lubbock.c Author: Nicolas Pitre
*
* 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.
*
* Change Log
* 12-Dec-2002 Sharp Corporation for Poodle
* John Lenz <lenz@cs.wisc.edu> updates to 2.6
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/fb.h>
#include <linux/pm.h>
#include <linux/delay.h>
#include <linux/mtd/physmap.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/mtd/sharpsl.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <asm/setup.h>
#include <asm/system.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <mach/pxa25x.h>
#include <mach/mmc.h>
#include <mach/udc.h>
#include <plat/i2c.h>
#include <mach/irda.h>
#include <mach/poodle.h>
#include <mach/pxafb.h>
#include <mach/sharpsl.h>
#include <mach/ssp.h>
#include <mach/pxa2xx_spi.h>
#include <asm/hardware/scoop.h>
#include <asm/hardware/locomo.h>
#include <asm/mach/sharpsl_param.h>
#include "generic.h"
#include "devices.h"
#include "sharpsl.h"
static unsigned long poodle_pin_config[] __initdata = {
/* I/O */
GPIO79_nCS_3,
GPIO80_nCS_4,
GPIO18_RDY,
/* Clock */
GPIO12_32KHz,
/* SSP1 */
GPIO23_SSP1_SCLK,
GPIO25_SSP1_TXD,
GPIO26_SSP1_RXD,
GPIO24_GPIO, /* POODLE_GPIO_TP_CS - SFRM as chip select */
/* I2S */
GPIO28_I2S_BITCLK_OUT,
GPIO29_I2S_SDATA_IN,
GPIO30_I2S_SDATA_OUT,
GPIO31_I2S_SYNC,
GPIO32_I2S_SYSCLK,
/* Infra-Red */
GPIO47_FICP_TXD,
GPIO46_FICP_RXD,
/* FFUART */
GPIO40_FFUART_DTR,
GPIO41_FFUART_RTS,
GPIO39_FFUART_TXD,
GPIO37_FFUART_DSR,
GPIO34_FFUART_RXD,
GPIO35_FFUART_CTS,
/* LCD */
GPIO58_LCD_LDD_0,
GPIO59_LCD_LDD_1,
GPIO60_LCD_LDD_2,
GPIO61_LCD_LDD_3,
GPIO62_LCD_LDD_4,
GPIO63_LCD_LDD_5,
GPIO64_LCD_LDD_6,
GPIO65_LCD_LDD_7,
GPIO66_LCD_LDD_8,
GPIO67_LCD_LDD_9,
GPIO68_LCD_LDD_10,
GPIO69_LCD_LDD_11,
GPIO70_LCD_LDD_12,
GPIO71_LCD_LDD_13,
GPIO72_LCD_LDD_14,
GPIO73_LCD_LDD_15,
GPIO74_LCD_FCLK,
GPIO75_LCD_LCLK,
GPIO76_LCD_PCLK,
GPIO77_LCD_BIAS,
/* PC Card */
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO52_nPCE_1,
GPIO53_nPCE_2,
GPIO54_nPSKTSEL,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16,
/* MMC */
GPIO6_MMC_CLK,
GPIO8_MMC_CS0,
/* GPIO */
GPIO9_GPIO, /* POODLE_GPIO_nSD_DETECT */
GPIO7_GPIO, /* POODLE_GPIO_nSD_WP */
GPIO3_GPIO, /* POODLE_GPIO_SD_PWR */
GPIO33_GPIO, /* POODLE_GPIO_SD_PWR1 */
GPIO20_GPIO, /* POODLE_GPIO_USB_PULLUP */
GPIO22_GPIO, /* POODLE_GPIO_IR_ON */
};
static struct resource poodle_scoop_resources[] = {
[0] = {
.start = 0x10800000,
.end = 0x10800fff,
.flags = IORESOURCE_MEM,
},
};
static struct scoop_config poodle_scoop_setup = {
.io_dir = POODLE_SCOOP_IO_DIR,
.io_out = POODLE_SCOOP_IO_OUT,
.gpio_base = POODLE_SCOOP_GPIO_BASE,
};
struct platform_device poodle_scoop_device = {
.name = "sharp-scoop",
.id = -1,
.dev = {
.platform_data = &poodle_scoop_setup,
},
.num_resources = ARRAY_SIZE(poodle_scoop_resources),
.resource = poodle_scoop_resources,
};
static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
{
.dev = &poodle_scoop_device.dev,
.irq = POODLE_IRQ_GPIO_CF_IRQ,
.cd_irq = POODLE_IRQ_GPIO_CF_CD,
.cd_irq_str = "PCMCIA0 CD",
},
};
static struct scoop_pcmcia_config poodle_pcmcia_config = {
.devs = &poodle_pcmcia_scoop[0],
.num_devs = 1,
};
EXPORT_SYMBOL(poodle_scoop_device);
/* LoCoMo device */
static struct resource locomo_resources[] = {
[0] = {
.start = 0x10000000,
.end = 0x10001fff,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_GPIO(10),
.end = IRQ_GPIO(10),
.flags = IORESOURCE_IRQ,
},
};
struct platform_device poodle_locomo_device = {
.name = "locomo",
.id = 0,
.num_resources = ARRAY_SIZE(locomo_resources),
.resource = locomo_resources,
};
EXPORT_SYMBOL(poodle_locomo_device);
#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
static struct pxa2xx_spi_master poodle_spi_info = {
.num_chipselect = 1,
};
static struct ads7846_platform_data poodle_ads7846_info = {
.model = 7846,
.vref_delay_usecs = 100,
.x_plate_ohms = 419,
.y_plate_ohms = 486,
.gpio_pendown = POODLE_GPIO_TP_INT,
};
static struct pxa2xx_spi_chip poodle_ads7846_chip = {
.gpio_cs = POODLE_GPIO_TP_CS,
};
static struct spi_board_info poodle_spi_devices[] = {
{
.modalias = "ads7846",
.max_speed_hz = 10000,
.bus_num = 1,
.platform_data = &poodle_ads7846_info,
.controller_data= &poodle_ads7846_chip,
.irq = gpio_to_irq(POODLE_GPIO_TP_INT),
},
};
static void __init poodle_init_spi(void)
{
pxa2xx_set_spi_info(1, &poodle_spi_info);
spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
}
#else
static inline void poodle_init_spi(void) {}
#endif
/*
* MMC/SD Device
*
* The card detect interrupt isn't debounced so we delay it by 250ms
* to give the card a chance to fully insert/eject.
*/
static int poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int, void *data)
{
int err;
err = gpio_request(POODLE_GPIO_SD_PWR, "SD_PWR");
if (err)
goto err_free_2;
err = gpio_request(POODLE_GPIO_SD_PWR1, "SD_PWR1");
if (err)
goto err_free_3;
gpio_direction_output(POODLE_GPIO_SD_PWR, 0);
gpio_direction_output(POODLE_GPIO_SD_PWR1, 0);
return 0;
err_free_3:
gpio_free(POODLE_GPIO_SD_PWR);
err_free_2:
return err;
}
static void poodle_mci_setpower(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data* p_d = dev->platform_data;
if ((1 << vdd) & p_d->ocr_mask) {
gpio_set_value(POODLE_GPIO_SD_PWR, 1);
mdelay(2);
gpio_set_value(POODLE_GPIO_SD_PWR1, 1);
} else {
gpio_set_value(POODLE_GPIO_SD_PWR1, 0);
gpio_set_value(POODLE_GPIO_SD_PWR, 0);
}
}
static void poodle_mci_exit(struct device *dev, void *data)
{
gpio_free(POODLE_GPIO_SD_PWR1);
gpio_free(POODLE_GPIO_SD_PWR);
}
static struct pxamci_platform_data poodle_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
.init = poodle_mci_init,
.setpower = poodle_mci_setpower,
.exit = poodle_mci_exit,
.gpio_card_detect = POODLE_IRQ_GPIO_nSD_DETECT,
.gpio_card_ro = POODLE_GPIO_nSD_WP,
.gpio_power = -1,
};
/*
* Irda
*/
static struct pxaficp_platform_data poodle_ficp_platform_data = {
.gpio_pwdown = POODLE_GPIO_IR_ON,
.transceiver_cap = IR_SIRMODE | IR_OFF,
};
/*
* USB Device Controller
*/
static struct pxa2xx_udc_mach_info udc_info __initdata = {
/* no connect GPIO; poodle can't tell connection status */
.gpio_pullup = POODLE_GPIO_USB_PULLUP,
};
/* PXAFB device */
static struct pxafb_mode_info poodle_fb_mode = {
.pixclock = 144700,
.xres = 320,
.yres = 240,
.bpp = 16,
.hsync_len = 7,
.left_margin = 11,
.right_margin = 30,
.vsync_len = 2,
.upper_margin = 2,
.lower_margin = 0,
.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
};
static struct pxafb_mach_info poodle_fb_info = {
.modes = &poodle_fb_mode,
.num_modes = 1,
.lcd_conn = LCD_COLOR_TFT_16BPP,
};
static struct mtd_partition sharpsl_nand_partitions[] = {
{
.name = "System Area",
.offset = 0,
.size = 7 * 1024 * 1024,
},
{
.name = "Root Filesystem",
.offset = 7 * 1024 * 1024,
.size = 22 * 1024 * 1024,
},
{
.name = "Home Filesystem",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
static struct nand_bbt_descr sharpsl_bbt = {
.options = 0,
.offs = 4,
.len = 2,
.pattern = scan_ff_pattern
};
static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
.badblock_pattern = &sharpsl_bbt,
.partitions = sharpsl_nand_partitions,
.nr_partitions = ARRAY_SIZE(sharpsl_nand_partitions),
};
static struct resource sharpsl_nand_resources[] = {
{
.start = 0x0C000000,
.end = 0x0C000FFF,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device sharpsl_nand_device = {
.name = "sharpsl-nand",
.id = -1,
.resource = sharpsl_nand_resources,
.num_resources = ARRAY_SIZE(sharpsl_nand_resources),
.dev.platform_data = &sharpsl_nand_platform_data,
};
static struct mtd_partition sharpsl_rom_parts[] = {
{
.name ="Boot PROM Filesystem",
.offset = 0x00120000,
.size = MTDPART_SIZ_FULL,
},
};
static struct physmap_flash_data sharpsl_rom_data = {
.width = 2,
.nr_parts = ARRAY_SIZE(sharpsl_rom_parts),
.parts = sharpsl_rom_parts,
};
static struct resource sharpsl_rom_resources[] = {
{
.start = 0x00000000,
.end = 0x007fffff,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device sharpsl_rom_device = {
.name = "physmap-flash",
.id = -1,
.resource = sharpsl_rom_resources,
.num_resources = ARRAY_SIZE(sharpsl_rom_resources),
.dev.platform_data = &sharpsl_rom_data,
};
static struct platform_device *devices[] __initdata = {
&poodle_locomo_device,
&poodle_scoop_device,
&sharpsl_nand_device,
&sharpsl_rom_device,
};
static struct i2c_board_info __initdata poodle_i2c_devices[] = {
{ I2C_BOARD_INFO("wm8731", 0x1b) },
};
static void poodle_poweroff(void)
{
arm_machine_restart('h', NULL);
}
static void poodle_restart(char mode, const char *cmd)
{
arm_machine_restart('h', cmd);
}
static void __init poodle_init(void)
{
int ret = 0;
pm_power_off = poodle_poweroff;
arm_pm_restart = poodle_restart;
PCFR |= PCFR_OPDE;
pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
platform_scoop_config = &poodle_pcmcia_config;
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
if (ret)
pr_warning("poodle: Unable to register LoCoMo device\n");
set_pxa_fb_parent(&poodle_locomo_device.dev);
set_pxa_fb_info(&poodle_fb_info);
pxa_set_udc_info(&udc_info);
poodle_mci_platform_data.detect_delay = msecs_to_jiffies(250);
pxa_set_mci_info(&poodle_mci_platform_data);
pxa_set_ficp_info(&poodle_ficp_platform_data);
pxa_set_i2c_info(NULL);
i2c_register_board_info(0, ARRAY_AND_SIZE(poodle_i2c_devices));
poodle_init_spi();
}
static void __init fixup_poodle(struct machine_desc *desc,
struct tag *tags, char **cmdline, struct meminfo *mi)
{
sharpsl_save_param();
mi->nr_banks=1;
mi->bank[0].start = 0xa0000000;
mi->bank[0].node = 0;
mi->bank[0].size = (32*1024*1024);
}
MACHINE_START(POODLE, "SHARP Poodle")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.fixup = fixup_poodle,
.map_io = pxa_map_io,
.init_irq = pxa25x_init_irq,
.timer = &pxa_timer,
.init_machine = poodle_init,
MACHINE_END
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