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android_kernel_motorola_sm6225/arch/arm/mach-pxa/littleton.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/littleton.c
*
* Support for the Marvell Littleton Development Platform.
*
* Author: Jason Chagas (largely modified code)
* Created: Nov 20, 2006
* Copyright: (C) Copyright 2006 Marvell International Ltd.
*
* 2007-11-22 modified to align with latest kernel
* eric miao <eric.miao@marvell.com>
*
* 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
* publishhed by the Free Software Foundation.
*/
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/gpio.h>
#include <linux/spi/spi.h>
#include <linux/smc91x.h>
#include <linux/i2c.h>
#include <linux/leds.h>
#include <linux/mfd/da903x.h>
#include <linux/i2c/max732x.h>
#include <asm/types.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <mach/pxa300.h>
#include <mach/pxafb.h>
#include <mach/ssp.h>
#include <mach/mmc.h>
#include <mach/pxa2xx_spi.h>
#include <mach/pxa27x_keypad.h>
#include <mach/littleton.h>
#include <plat/i2c.h>
#include <plat/pxa3xx_nand.h>
#include "generic.h"
#define GPIO_MMC1_CARD_DETECT mfp_to_gpio(MFP_PIN_GPIO15)
/* Littleton MFP configurations */
static mfp_cfg_t littleton_mfp_cfg[] __initdata = {
/* LCD */
GPIO54_LCD_LDD_0,
GPIO55_LCD_LDD_1,
GPIO56_LCD_LDD_2,
GPIO57_LCD_LDD_3,
GPIO58_LCD_LDD_4,
GPIO59_LCD_LDD_5,
GPIO60_LCD_LDD_6,
GPIO61_LCD_LDD_7,
GPIO62_LCD_LDD_8,
GPIO63_LCD_LDD_9,
GPIO64_LCD_LDD_10,
GPIO65_LCD_LDD_11,
GPIO66_LCD_LDD_12,
GPIO67_LCD_LDD_13,
GPIO68_LCD_LDD_14,
GPIO69_LCD_LDD_15,
GPIO70_LCD_LDD_16,
GPIO71_LCD_LDD_17,
GPIO72_LCD_FCLK,
GPIO73_LCD_LCLK,
GPIO74_LCD_PCLK,
GPIO75_LCD_BIAS,
/* SSP2 */
GPIO25_SSP2_SCLK,
GPIO27_SSP2_TXD,
GPIO17_GPIO, /* SFRM as chip-select */
/* Debug Ethernet */
GPIO90_GPIO,
/* Keypad */
GPIO107_KP_DKIN_0,
GPIO108_KP_DKIN_1,
GPIO115_KP_MKIN_0,
GPIO116_KP_MKIN_1,
GPIO117_KP_MKIN_2,
GPIO118_KP_MKIN_3,
GPIO119_KP_MKIN_4,
GPIO120_KP_MKIN_5,
GPIO121_KP_MKOUT_0,
GPIO122_KP_MKOUT_1,
GPIO123_KP_MKOUT_2,
GPIO124_KP_MKOUT_3,
GPIO125_KP_MKOUT_4,
/* MMC1 */
GPIO3_MMC1_DAT0,
GPIO4_MMC1_DAT1,
GPIO5_MMC1_DAT2,
GPIO6_MMC1_DAT3,
GPIO7_MMC1_CLK,
GPIO8_MMC1_CMD,
GPIO15_GPIO, /* card detect */
};
static struct resource smc91x_resources[] = {
[0] = {
.start = (LITTLETON_ETH_PHYS + 0x300),
.end = (LITTLETON_ETH_PHYS + 0xfffff),
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
.end = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
}
};
static struct smc91x_platdata littleton_smc91x_info = {
.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT |
SMC91X_NOWAIT | SMC91X_USE_DMA,
};
static struct platform_device smc91x_device = {
.name = "smc91x",
.id = 0,
.num_resources = ARRAY_SIZE(smc91x_resources),
.resource = smc91x_resources,
.dev = {
.platform_data = &littleton_smc91x_info,
},
};
#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
static struct pxafb_mode_info tpo_tdo24mtea1_modes[] = {
[0] = {
/* VGA */
.pixclock = 38250,
.xres = 480,
.yres = 640,
.bpp = 16,
.hsync_len = 8,
.left_margin = 8,
.right_margin = 24,
.vsync_len = 2,
.upper_margin = 2,
.lower_margin = 4,
.sync = 0,
},
[1] = {
/* QVGA */
.pixclock = 153000,
.xres = 240,
.yres = 320,
.bpp = 16,
.hsync_len = 8,
.left_margin = 8,
.right_margin = 88,
.vsync_len = 2,
.upper_margin = 2,
.lower_margin = 2,
.sync = 0,
},
};
static struct pxafb_mach_info littleton_lcd_info = {
.modes = tpo_tdo24mtea1_modes,
.num_modes = 2,
.lcd_conn = LCD_COLOR_TFT_16BPP,
};
static void littleton_init_lcd(void)
{
set_pxa_fb_info(&littleton_lcd_info);
}
#else
static inline void littleton_init_lcd(void) {};
#endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULE */
#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
static struct pxa2xx_spi_master littleton_spi_info = {
.num_chipselect = 1,
};
static struct pxa2xx_spi_chip littleton_tdo24m_chip = {
.rx_threshold = 1,
.tx_threshold = 1,
.gpio_cs = LITTLETON_GPIO_LCD_CS,
};
static struct spi_board_info littleton_spi_devices[] __initdata = {
{
.modalias = "tdo24m",
.max_speed_hz = 1000000,
.bus_num = 2,
.chip_select = 0,
.controller_data= &littleton_tdo24m_chip,
},
};
static void __init littleton_init_spi(void)
{
pxa2xx_set_spi_info(2, &littleton_spi_info);
spi_register_board_info(ARRAY_AND_SIZE(littleton_spi_devices));
}
#else
static inline void littleton_init_spi(void) {}
#endif
#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
static unsigned int littleton_matrix_key_map[] = {
/* KEY(row, col, key_code) */
KEY(1, 3, KEY_0), KEY(0, 0, KEY_1), KEY(1, 0, KEY_2), KEY(2, 0, KEY_3),
KEY(0, 1, KEY_4), KEY(1, 1, KEY_5), KEY(2, 1, KEY_6), KEY(0, 2, KEY_7),
KEY(1, 2, KEY_8), KEY(2, 2, KEY_9),
KEY(0, 3, KEY_KPASTERISK), /* * */
KEY(2, 3, KEY_KPDOT), /* # */
KEY(5, 4, KEY_ENTER),
KEY(5, 0, KEY_UP),
KEY(5, 1, KEY_DOWN),
KEY(5, 2, KEY_LEFT),
KEY(5, 3, KEY_RIGHT),
KEY(3, 2, KEY_HOME),
KEY(4, 1, KEY_END),
KEY(3, 3, KEY_BACK),
KEY(4, 0, KEY_SEND),
KEY(4, 2, KEY_VOLUMEUP),
KEY(4, 3, KEY_VOLUMEDOWN),
KEY(3, 0, KEY_F22), /* soft1 */
KEY(3, 1, KEY_F23), /* soft2 */
};
static struct pxa27x_keypad_platform_data littleton_keypad_info = {
.matrix_key_rows = 6,
.matrix_key_cols = 5,
.matrix_key_map = littleton_matrix_key_map,
.matrix_key_map_size = ARRAY_SIZE(littleton_matrix_key_map),
.enable_rotary0 = 1,
.rotary0_up_key = KEY_UP,
.rotary0_down_key = KEY_DOWN,
.debounce_interval = 30,
};
static void __init littleton_init_keypad(void)
{
pxa_set_keypad_info(&littleton_keypad_info);
}
#else
static inline void littleton_init_keypad(void) {}
#endif
#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
static struct pxamci_platform_data littleton_mci_platform_data = {
.detect_delay = 20,
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.gpio_card_detect = GPIO_MMC1_CARD_DETECT,
.gpio_card_ro = -1,
.gpio_power = -1,
};
static void __init littleton_init_mmc(void)
{
pxa_set_mci_info(&littleton_mci_platform_data);
}
#else
static inline void littleton_init_mmc(void) {}
#endif
#if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
static struct mtd_partition littleton_nand_partitions[] = {
[0] = {
.name = "Bootloader",
.offset = 0,
.size = 0x060000,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
[1] = {
.name = "Kernel",
.offset = 0x060000,
.size = 0x200000,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
[2] = {
.name = "Filesystem",
.offset = 0x0260000,
.size = 0x3000000, /* 48M - rootfs */
},
[3] = {
.name = "MassStorage",
.offset = 0x3260000,
.size = 0x3d40000,
},
[4] = {
.name = "BBT",
.offset = 0x6FA0000,
.size = 0x80000,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
/* NOTE: we reserve some blocks at the end of the NAND flash for
* bad block management, and the max number of relocation blocks
* differs on different platforms. Please take care with it when
* defining the partition table.
*/
};
static struct pxa3xx_nand_platform_data littleton_nand_info = {
.enable_arbiter = 1,
.parts = littleton_nand_partitions,
.nr_parts = ARRAY_SIZE(littleton_nand_partitions),
};
static void __init littleton_init_nand(void)
{
pxa3xx_set_nand_info(&littleton_nand_info);
}
#else
static inline void littleton_init_nand(void) {}
#endif /* CONFIG_MTD_NAND_PXA3xx || CONFIG_MTD_NAND_PXA3xx_MODULE */
#if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE)
static struct led_info littleton_da9034_leds[] = {
[0] = {
.name = "littleton:keypad1",
.flags = DA9034_LED_RAMP,
},
[1] = {
.name = "littleton:keypad2",
.flags = DA9034_LED_RAMP,
},
[2] = {
.name = "littleton:vibra",
.flags = 0,
},
};
static struct da9034_touch_pdata littleton_da9034_touch = {
.x_inverted = 1,
.interval_ms = 20,
};
static struct da903x_subdev_info littleton_da9034_subdevs[] = {
{
.name = "da903x-led",
.id = DA9034_ID_LED_1,
.platform_data = &littleton_da9034_leds[0],
}, {
.name = "da903x-led",
.id = DA9034_ID_LED_2,
.platform_data = &littleton_da9034_leds[1],
}, {
.name = "da903x-led",
.id = DA9034_ID_VIBRA,
.platform_data = &littleton_da9034_leds[2],
}, {
.name = "da903x-backlight",
.id = DA9034_ID_WLED,
}, {
.name = "da9034-touch",
.id = DA9034_ID_TOUCH,
.platform_data = &littleton_da9034_touch,
},
};
static struct da903x_platform_data littleton_da9034_info = {
.num_subdevs = ARRAY_SIZE(littleton_da9034_subdevs),
.subdevs = littleton_da9034_subdevs,
};
static struct max732x_platform_data littleton_max7320_info = {
.gpio_base = EXT0_GPIO_BASE,
};
static struct i2c_board_info littleton_i2c_info[] = {
[0] = {
.type = "da9034",
.addr = 0x34,
.platform_data = &littleton_da9034_info,
.irq = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO18)),
},
[1] = {
.type = "max7320",
.addr = 0x50,
.platform_data = &littleton_max7320_info,
},
};
static void __init littleton_init_i2c(void)
{
pxa_set_i2c_info(NULL);
i2c_register_board_info(0, ARRAY_AND_SIZE(littleton_i2c_info));
}
#else
static inline void littleton_init_i2c(void) {}
#endif /* CONFIG_I2C_PXA || CONFIG_I2C_PXA_MODULE */
static void __init littleton_init(void)
{
/* initialize MFP configurations */
pxa3xx_mfp_config(ARRAY_AND_SIZE(littleton_mfp_cfg));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
/*
* Note: we depend bootloader set the correct
* value to MSC register for SMC91x.
*/
platform_device_register(&smc91x_device);
littleton_init_spi();
littleton_init_i2c();
littleton_init_mmc();
littleton_init_lcd();
littleton_init_keypad();
littleton_init_nand();
}
MACHINE_START(LITTLETON, "Marvell Form Factor Development Platform (aka Littleton)")
.phys_io = 0x40000000,
.boot_params = 0xa0000100,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.map_io = pxa_map_io,
.init_irq = pxa3xx_init_irq,
.timer = &pxa_timer,
.init_machine = littleton_init,
MACHINE_END
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