forked from luck/tmp_suning_uos_patched
097b53348f
Direct access to USB host controller registers is considered to be not portable, and is usually a bad sign for poorly abstracted interface. Introduce .flags and .power_on_delay to "struct pxaohci_platform_data" so that most platforms don't bother to write their own .init/.exit() sequences. Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
562 lines
12 KiB
C
562 lines
12 KiB
C
/*
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* Support for CompuLab EM-X270 platform
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*
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* Copyright (C) 2007, 2008 CompuLab, Ltd.
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* Author: Mike Rapoport <mike@compulab.co.il>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/irq.h>
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#include <linux/platform_device.h>
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#include <linux/dm9000.h>
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#include <linux/rtc-v3020.h>
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#include <linux/mtd/nand.h>
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#include <linux/mtd/partitions.h>
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#include <linux/input.h>
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#include <linux/gpio_keys.h>
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#include <linux/gpio.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <mach/mfp-pxa27x.h>
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#include <mach/pxa-regs.h>
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#include <mach/pxa27x-udc.h>
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#include <mach/audio.h>
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#include <mach/pxafb.h>
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#include <mach/ohci.h>
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#include <mach/mmc.h>
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#include <mach/pxa27x_keypad.h>
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#include "generic.h"
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/* GPIO IRQ usage */
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#define GPIO41_ETHIRQ (41)
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#define GPIO13_MMC_CD (13)
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#define EM_X270_ETHIRQ IRQ_GPIO(GPIO41_ETHIRQ)
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#define EM_X270_MMC_CD IRQ_GPIO(GPIO13_MMC_CD)
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/* NAND control GPIOs */
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#define GPIO11_NAND_CS (11)
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#define GPIO56_NAND_RB (56)
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static unsigned long em_x270_pin_config[] = {
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/* AC'97 */
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GPIO28_AC97_BITCLK,
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GPIO29_AC97_SDATA_IN_0,
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GPIO30_AC97_SDATA_OUT,
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GPIO31_AC97_SYNC,
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GPIO98_AC97_SYSCLK,
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GPIO113_AC97_nRESET,
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/* BTUART */
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GPIO42_BTUART_RXD,
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GPIO43_BTUART_TXD,
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GPIO44_BTUART_CTS,
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GPIO45_BTUART_RTS,
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/* STUART */
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GPIO46_STUART_RXD,
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GPIO47_STUART_TXD,
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/* MCI controller */
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GPIO32_MMC_CLK,
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GPIO112_MMC_CMD,
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GPIO92_MMC_DAT_0,
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GPIO109_MMC_DAT_1,
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GPIO110_MMC_DAT_2,
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GPIO111_MMC_DAT_3,
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/* LCD */
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GPIO58_LCD_LDD_0,
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GPIO59_LCD_LDD_1,
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GPIO60_LCD_LDD_2,
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GPIO61_LCD_LDD_3,
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GPIO62_LCD_LDD_4,
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GPIO63_LCD_LDD_5,
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GPIO64_LCD_LDD_6,
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GPIO65_LCD_LDD_7,
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GPIO66_LCD_LDD_8,
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GPIO67_LCD_LDD_9,
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GPIO68_LCD_LDD_10,
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GPIO69_LCD_LDD_11,
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GPIO70_LCD_LDD_12,
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GPIO71_LCD_LDD_13,
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GPIO72_LCD_LDD_14,
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GPIO73_LCD_LDD_15,
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GPIO74_LCD_FCLK,
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GPIO75_LCD_LCLK,
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GPIO76_LCD_PCLK,
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GPIO77_LCD_BIAS,
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/* QCI */
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GPIO84_CIF_FV,
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GPIO25_CIF_LV,
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GPIO53_CIF_MCLK,
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GPIO54_CIF_PCLK,
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GPIO81_CIF_DD_0,
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GPIO55_CIF_DD_1,
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GPIO51_CIF_DD_2,
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GPIO50_CIF_DD_3,
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GPIO52_CIF_DD_4,
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GPIO48_CIF_DD_5,
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GPIO17_CIF_DD_6,
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GPIO12_CIF_DD_7,
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/* I2C */
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GPIO117_I2C_SCL,
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GPIO118_I2C_SDA,
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/* Keypad */
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GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
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GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
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GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
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GPIO34_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
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GPIO39_KP_MKIN_4 | WAKEUP_ON_LEVEL_HIGH,
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GPIO99_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH,
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GPIO91_KP_MKIN_6 | WAKEUP_ON_LEVEL_HIGH,
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GPIO36_KP_MKIN_7 | WAKEUP_ON_LEVEL_HIGH,
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GPIO103_KP_MKOUT_0,
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GPIO104_KP_MKOUT_1,
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GPIO105_KP_MKOUT_2,
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GPIO106_KP_MKOUT_3,
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GPIO107_KP_MKOUT_4,
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GPIO108_KP_MKOUT_5,
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GPIO96_KP_MKOUT_6,
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GPIO22_KP_MKOUT_7,
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/* SSP1 */
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GPIO26_SSP1_RXD,
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GPIO23_SSP1_SCLK,
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GPIO24_SSP1_SFRM,
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GPIO57_SSP1_TXD,
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/* SSP2 */
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GPIO19_SSP2_SCLK,
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GPIO14_SSP2_SFRM,
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GPIO89_SSP2_TXD,
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GPIO88_SSP2_RXD,
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/* SDRAM and local bus */
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GPIO15_nCS_1,
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GPIO78_nCS_2,
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GPIO79_nCS_3,
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GPIO80_nCS_4,
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GPIO49_nPWE,
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GPIO18_RDY,
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/* GPIO */
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GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
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/* power controls */
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GPIO20_GPIO | MFP_LPM_DRIVE_LOW, /* GPRS_PWEN */
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GPIO115_GPIO | MFP_LPM_DRIVE_LOW, /* WLAN_PWEN */
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/* NAND controls */
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GPIO11_GPIO | MFP_LPM_DRIVE_HIGH, /* NAND CE# */
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GPIO56_GPIO, /* NAND Ready/Busy */
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/* interrupts */
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GPIO13_GPIO, /* MMC card detect */
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GPIO41_GPIO, /* DM9000 interrupt */
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};
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#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
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static struct resource em_x270_dm9000_resource[] = {
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[0] = {
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.start = PXA_CS2_PHYS,
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.end = PXA_CS2_PHYS + 3,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = PXA_CS2_PHYS + 8,
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.end = PXA_CS2_PHYS + 8 + 0x3f,
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.flags = IORESOURCE_MEM,
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},
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[2] = {
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.start = EM_X270_ETHIRQ,
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.end = EM_X270_ETHIRQ,
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
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}
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};
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static struct dm9000_plat_data em_x270_dm9000_platdata = {
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.flags = DM9000_PLATF_32BITONLY,
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};
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static struct platform_device em_x270_dm9000 = {
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.name = "dm9000",
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.id = 0,
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.num_resources = ARRAY_SIZE(em_x270_dm9000_resource),
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.resource = em_x270_dm9000_resource,
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.dev = {
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.platform_data = &em_x270_dm9000_platdata,
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}
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};
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static void __init em_x270_init_dm9000(void)
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{
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platform_device_register(&em_x270_dm9000);
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}
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#else
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static inline void em_x270_init_dm9000(void) {}
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#endif
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/* V3020 RTC */
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#if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
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static struct resource em_x270_v3020_resource[] = {
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[0] = {
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.start = PXA_CS4_PHYS,
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.end = PXA_CS4_PHYS + 3,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct v3020_platform_data em_x270_v3020_platdata = {
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.leftshift = 0,
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};
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static struct platform_device em_x270_rtc = {
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.name = "v3020",
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.num_resources = ARRAY_SIZE(em_x270_v3020_resource),
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.resource = em_x270_v3020_resource,
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.id = -1,
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.dev = {
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.platform_data = &em_x270_v3020_platdata,
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}
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};
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static void __init em_x270_init_rtc(void)
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{
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platform_device_register(&em_x270_rtc);
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}
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#else
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static inline void em_x270_init_rtc(void) {}
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#endif
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/* NAND flash */
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#if defined(CONFIG_MTD_NAND_PLATFORM) || defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
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static inline void nand_cs_on(void)
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{
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gpio_set_value(GPIO11_NAND_CS, 0);
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}
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static void nand_cs_off(void)
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{
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dsb();
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gpio_set_value(GPIO11_NAND_CS, 1);
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}
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/* hardware specific access to control-lines */
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static void em_x270_nand_cmd_ctl(struct mtd_info *mtd, int dat,
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unsigned int ctrl)
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{
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struct nand_chip *this = mtd->priv;
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unsigned long nandaddr = (unsigned long)this->IO_ADDR_W;
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dsb();
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if (ctrl & NAND_CTRL_CHANGE) {
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if (ctrl & NAND_ALE)
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nandaddr |= (1 << 3);
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else
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nandaddr &= ~(1 << 3);
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if (ctrl & NAND_CLE)
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nandaddr |= (1 << 2);
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else
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nandaddr &= ~(1 << 2);
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if (ctrl & NAND_NCE)
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nand_cs_on();
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else
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nand_cs_off();
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}
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dsb();
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this->IO_ADDR_W = (void __iomem *)nandaddr;
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if (dat != NAND_CMD_NONE)
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writel(dat, this->IO_ADDR_W);
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dsb();
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}
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/* read device ready pin */
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static int em_x270_nand_device_ready(struct mtd_info *mtd)
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{
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dsb();
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return gpio_get_value(GPIO56_NAND_RB);
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}
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static struct mtd_partition em_x270_partition_info[] = {
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[0] = {
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.name = "em_x270-0",
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.offset = 0,
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.size = SZ_4M,
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},
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[1] = {
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.name = "em_x270-1",
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.offset = MTDPART_OFS_APPEND,
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.size = MTDPART_SIZ_FULL
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},
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};
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static const char *em_x270_part_probes[] = { "cmdlinepart", NULL };
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struct platform_nand_data em_x270_nand_platdata = {
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.chip = {
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.nr_chips = 1,
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.chip_offset = 0,
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.nr_partitions = ARRAY_SIZE(em_x270_partition_info),
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.partitions = em_x270_partition_info,
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.chip_delay = 20,
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.part_probe_types = em_x270_part_probes,
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},
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.ctrl = {
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.hwcontrol = 0,
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.dev_ready = em_x270_nand_device_ready,
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.select_chip = 0,
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.cmd_ctrl = em_x270_nand_cmd_ctl,
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},
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};
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static struct resource em_x270_nand_resource[] = {
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[0] = {
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.start = PXA_CS1_PHYS,
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.end = PXA_CS1_PHYS + 12,
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.flags = IORESOURCE_MEM,
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},
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};
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static struct platform_device em_x270_nand = {
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.name = "gen_nand",
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.num_resources = ARRAY_SIZE(em_x270_nand_resource),
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.resource = em_x270_nand_resource,
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.id = -1,
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.dev = {
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.platform_data = &em_x270_nand_platdata,
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}
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};
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static void __init em_x270_init_nand(void)
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{
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int err;
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err = gpio_request(GPIO11_NAND_CS, "NAND CS");
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if (err) {
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pr_warning("EM-X270: failed to request NAND CS gpio\n");
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return;
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}
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gpio_direction_output(GPIO11_NAND_CS, 1);
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err = gpio_request(GPIO56_NAND_RB, "NAND R/B");
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if (err) {
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pr_warning("EM-X270: failed to request NAND R/B gpio\n");
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gpio_free(GPIO11_NAND_CS);
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return;
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}
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gpio_direction_input(GPIO56_NAND_RB);
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platform_device_register(&em_x270_nand);
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}
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#else
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static inline void em_x270_init_nand(void) {}
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#endif
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/* PXA27x OHCI controller setup */
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#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
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static int em_x270_ohci_init(struct device *dev)
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{
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/* enable port 2 transiever */
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UP2OCR = UP2OCR_HXS | UP2OCR_HXOE;
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return 0;
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}
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static struct pxaohci_platform_data em_x270_ohci_platform_data = {
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.port_mode = PMM_PERPORT_MODE,
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.flags = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
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.init = em_x270_ohci_init,
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};
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static void __init em_x270_init_ohci(void)
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{
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pxa_set_ohci_info(&em_x270_ohci_platform_data);
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}
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#else
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static inline void em_x270_init_ohci(void) {}
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#endif
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/* MCI controller setup */
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#if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
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static int em_x270_mci_init(struct device *dev,
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irq_handler_t em_x270_detect_int,
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void *data)
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{
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int err = request_irq(EM_X270_MMC_CD, em_x270_detect_int,
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IRQF_DISABLED | IRQF_TRIGGER_FALLING,
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"MMC card detect", data);
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if (err) {
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printk(KERN_ERR "%s: can't request MMC card detect IRQ: %d\n",
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__func__, err);
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return err;
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}
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return 0;
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}
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static void em_x270_mci_setpower(struct device *dev, unsigned int vdd)
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{
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/*
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FIXME: current hardware implementation does not allow to
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enable/disable MMC power. This will be fixed in next HW releases,
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and we'll need to add implmentation here.
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*/
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return;
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}
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static void em_x270_mci_exit(struct device *dev, void *data)
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{
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int irq = gpio_to_irq(GPIO13_MMC_CD);
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free_irq(irq, data);
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}
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static struct pxamci_platform_data em_x270_mci_platform_data = {
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.ocr_mask = MMC_VDD_28_29|MMC_VDD_29_30|MMC_VDD_30_31,
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.init = em_x270_mci_init,
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.setpower = em_x270_mci_setpower,
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.exit = em_x270_mci_exit,
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};
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static void __init em_x270_init_mmc(void)
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{
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pxa_set_mci_info(&em_x270_mci_platform_data);
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}
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#else
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static inline void em_x270_init_mmc(void) {}
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#endif
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/* LCD 480x640 */
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#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
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static struct pxafb_mode_info em_x270_lcd_mode = {
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.pixclock = 50000,
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.bpp = 16,
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.xres = 480,
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.yres = 640,
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.hsync_len = 8,
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.vsync_len = 2,
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.left_margin = 8,
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.upper_margin = 0,
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.right_margin = 24,
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.lower_margin = 4,
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.cmap_greyscale = 0,
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};
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static struct pxafb_mach_info em_x270_lcd = {
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.modes = &em_x270_lcd_mode,
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.num_modes = 1,
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.lcd_conn = LCD_COLOR_TFT_16BPP,
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};
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static void __init em_x270_init_lcd(void)
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{
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set_pxa_fb_info(&em_x270_lcd);
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}
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#else
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static inline void em_x270_init_lcd(void) {}
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#endif
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#if defined(CONFIG_SND_PXA2XX_AC97) || defined(CONFIG_SND_PXA2XX_AC97_MODULE)
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static void __init em_x270_init_ac97(void)
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{
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pxa_set_ac97_info(NULL);
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}
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#else
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static inline void em_x270_init_ac97(void) {}
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#endif
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#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
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static unsigned int em_x270_matrix_keys[] = {
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KEY(0, 0, KEY_A), KEY(1, 0, KEY_UP), KEY(2, 1, KEY_B),
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KEY(0, 2, KEY_LEFT), KEY(1, 1, KEY_ENTER), KEY(2, 0, KEY_RIGHT),
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KEY(0, 1, KEY_C), KEY(1, 2, KEY_DOWN), KEY(2, 2, KEY_D),
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};
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struct pxa27x_keypad_platform_data em_x270_keypad_info = {
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/* code map for the matrix keys */
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.matrix_key_rows = 3,
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.matrix_key_cols = 3,
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.matrix_key_map = em_x270_matrix_keys,
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.matrix_key_map_size = ARRAY_SIZE(em_x270_matrix_keys),
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};
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|
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static void __init em_x270_init_keypad(void)
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{
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pxa_set_keypad_info(&em_x270_keypad_info);
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}
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#else
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static inline void em_x270_init_keypad(void) {}
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#endif
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|
|
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#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
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static struct gpio_keys_button gpio_keys_button[] = {
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[0] = {
|
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.desc = "sleep/wakeup",
|
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.code = KEY_SUSPEND,
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.type = EV_PWR,
|
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.gpio = 1,
|
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.wakeup = 1,
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},
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|
};
|
|
|
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static struct gpio_keys_platform_data em_x270_gpio_keys_data = {
|
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.buttons = gpio_keys_button,
|
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.nbuttons = 1,
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};
|
|
|
|
static struct platform_device em_x270_gpio_keys = {
|
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.name = "gpio-keys",
|
|
.id = -1,
|
|
.dev = {
|
|
.platform_data = &em_x270_gpio_keys_data,
|
|
},
|
|
};
|
|
|
|
static void __init em_x270_init_gpio_keys(void)
|
|
{
|
|
platform_device_register(&em_x270_gpio_keys);
|
|
}
|
|
#else
|
|
static inline void em_x270_init_gpio_keys(void) {}
|
|
#endif
|
|
|
|
static void __init em_x270_init(void)
|
|
{
|
|
pxa2xx_mfp_config(ARRAY_AND_SIZE(em_x270_pin_config));
|
|
|
|
em_x270_init_dm9000();
|
|
em_x270_init_rtc();
|
|
em_x270_init_nand();
|
|
em_x270_init_lcd();
|
|
em_x270_init_mmc();
|
|
em_x270_init_ohci();
|
|
em_x270_init_keypad();
|
|
em_x270_init_gpio_keys();
|
|
em_x270_init_ac97();
|
|
}
|
|
|
|
MACHINE_START(EM_X270, "Compulab EM-X270")
|
|
.boot_params = 0xa0000100,
|
|
.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 = em_x270_init,
|
|
MACHINE_END
|