- 根目录:
- arch
- arm
- mach-pxa
- mxm8x10.c
/*
* linux/arch/arm/mach-pxa/mxm8x10.c
*
* Support for the Embedian MXM-8x10 Computer on Module
*
* Copyright (C) 2006 Marvell International Ltd.
* Copyright (C) 2009 Embedian Inc.
* Copyright (C) 2009 TMT Services & Supplies (Pty) Ltd.
*
* 2007-09-04: eric miao <eric.y.miao@gmail.com>
* rewrite to align with latest kernel
*
* 2010-01-09: Edwin Peer <epeer@tmtservices.co.za>
* Hennie van der Merwe <hvdmerwe@tmtservices.co.za>
* rework for upstream merge
*
* 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.
*/
#include <linux/serial_8250.h>
#include <linux/dm9000.h>
#include <linux/gpio.h>
#include <linux/i2c/pxa-i2c.h>
#include <linux/platform_data/mtd-nand-pxa3xx.h>
#include <linux/platform_data/video-pxafb.h>
#include <linux/platform_data/mmc-pxamci.h>
#include <linux/platform_data/usb-ohci-pxa27x.h>
#include <mach/pxa320.h>
#include <mach/mxm8x10.h>
#include "devices.h"
#include "generic.h"
/* GPIO pin definition
External device stuff - Leave unconfigured for now...
---------------------
GPIO0 - DREQ (External DMA Request)
GPIO3 - nGCS2 (External Chip Select) Where is nGCS0; nGCS1; nGCS4; nGCS5 ?
GPIO4 - nGCS3
GPIO15 - EXT_GPIO1
GPIO16 - EXT_GPIO2
GPIO17 - EXT_GPIO3
GPIO24 - EXT_GPIO4
GPIO25 - EXT_GPIO5
GPIO26 - EXT_GPIO6
GPIO27 - EXT_GPIO7
GPIO28 - EXT_GPIO8
GPIO29 - EXT_GPIO9
GPIO30 - EXT_GPIO10
GPIO31 - EXT_GPIO11
GPIO57 - EXT_GPIO12
GPIO74 - EXT_IRQ1
GPIO75 - EXT_IRQ2
GPIO76 - EXT_IRQ3
GPIO77 - EXT_IRQ4
GPIO78 - EXT_IRQ5
GPIO79 - EXT_IRQ6
GPIO80 - EXT_IRQ7
GPIO81 - EXT_IRQ8
GPIO87 - VCCIO_PWREN (External Device PWREN)
Dallas 1-Wire - Leave unconfigured for now...
-------------
GPIO0_2 - DS - 1Wire
Ethernet
--------
GPIO1 - DM9000 PWR
GPIO9 - DM9K_nIRQ
GPIO36 - DM9K_RESET
Keypad - Leave unconfigured by for now...
------
GPIO1_2 - KP_DKIN0
GPIO5_2 - KP_MKOUT7
GPIO82 - KP_DKIN1
GPIO85 - KP_DKIN2
GPIO86 - KP_DKIN3
GPIO113 - KP_MKIN0
GPIO114 - KP_MKIN1
GPIO115 - KP_MKIN2
GPIO116 - KP_MKIN3
GPIO117 - KP_MKIN4
GPIO118 - KP_MKIN5
GPIO119 - KP_MKIN6
GPIO120 - KP_MKIN7
GPIO121 - KP_MKOUT0
GPIO122 - KP_MKOUT1
GPIO122 - KP_MKOUT2
GPIO123 - KP_MKOUT3
GPIO124 - KP_MKOUT4
GPIO125 - KP_MKOUT5
GPIO127 - KP_MKOUT6
Data Bus - Leave unconfigured for now...
--------
GPIO2 - nWait (Data Bus)
USB Device
----------
GPIO4_2 - USBD_PULLUP
GPIO10 - UTM_CLK (USB Device UTM Clk)
GPIO49 - USB 2.0 Device UTM_DATA0
GPIO50 - USB 2.0 Device UTM_DATA1
GPIO51 - USB 2.0 Device UTM_DATA2
GPIO52 - USB 2.0 Device UTM_DATA3
GPIO53 - USB 2.0 Device UTM_DATA4
GPIO54 - USB 2.0 Device UTM_DATA5
GPIO55 - USB 2.0 Device UTM_DATA6
GPIO56 - USB 2.0 Device UTM_DATA7
GPIO58 - UTM_RXVALID (USB 2.0 Device)
GPIO59 - UTM_RXACTIVE (USB 2.0 Device)
GPIO60 - UTM_RXERROR
GPIO61 - UTM_OPMODE0
GPIO62 - UTM_OPMODE1
GPIO71 - USBD_INT (USB Device?)
GPIO73 - UTM_TXREADY (USB 2.0 Device)
GPIO83 - UTM_TXVALID (USB 2.0 Device)
GPIO98 - UTM_RESET (USB 2.0 device)
GPIO99 - UTM_XCVR_SELECT
GPIO100 - UTM_TERM_SELECT
GPIO101 - UTM_SUSPENDM_X
GPIO102 - UTM_LINESTATE0
GPIO103 - UTM_LINESTATE1
Card-Bus Interface - Leave unconfigured for now...
------------------
GPIO5 - nPIOR (I/O space output enable)
GPIO6 - nPIOW (I/O space write enable)
GPIO7 - nIOS16 (Input from I/O space telling size of data bus)
GPIO8 - nPWAIT (Input for inserting wait states)
LCD
---
GPIO6_2 - LDD0
GPIO7_2 - LDD1
GPIO8_2 - LDD2
GPIO9_2 - LDD3
GPIO11_2 - LDD5
GPIO12_2 - LDD6
GPIO13_2 - LDD7
GPIO14_2 - VSYNC
GPIO15_2 - HSYNC
GPIO16_2 - VCLK
GPIO17_2 - HCLK
GPIO18_2 - VDEN
GPIO63 - LDD8 (CPU LCD)
GPIO64 - LDD9 (CPU LCD)
GPIO65 - LDD10 (CPU LCD)
GPIO66 - LDD11 (CPU LCD)
GPIO67 - LDD12 (CPU LCD)
GPIO68 - LDD13 (CPU LCD)
GPIO69 - LDD14 (CPU LCD)
GPIO70 - LDD15 (CPU LCD)
GPIO88 - VCCLCD_PWREN (LCD Panel PWREN)
GPIO97 - BACKLIGHT_EN
GPIO104 - LCD_PWREN
PWM - Leave unconfigured for now...
---
GPIO11 - PWM0
GPIO12 - PWM1
GPIO13 - PWM2
GPIO14 - PWM3
SD-CARD
-------
GPIO18 - SDDATA0
GPIO19 - SDDATA1
GPIO20 - SDDATA2
GPIO21 - SDDATA3
GPIO22 - SDCLK
GPIO23 - SDCMD
GPIO72 - SD_WP
GPIO84 - SD_nIRQ_CD (SD-Card)
I2C
---
GPIO32 - I2CSCL
GPIO33 - I2CSDA
AC97
----
GPIO35 - AC97_SDATA_IN
GPIO37 - AC97_SDATA_OUT
GPIO38 - AC97_SYNC
GPIO39 - AC97_BITCLK
GPIO40 - AC97_nRESET
UART1
-----
GPIO41 - UART_RXD1
GPIO42 - UART_TXD1
GPIO43 - UART_CTS1
GPIO44 - UART_DCD1
GPIO45 - UART_DSR1
GPIO46 - UART_nRI1
GPIO47 - UART_DTR1
GPIO48 - UART_RTS1
UART2
-----
GPIO109 - RTS2
GPIO110 - RXD2
GPIO111 - TXD2
GPIO112 - nCTS2
UART3
-----
GPIO105 - nCTS3
GPIO106 - nRTS3
GPIO107 - TXD3
GPIO108 - RXD3
SSP3 - Leave unconfigured for now...
----
GPIO89 - SSP3_CLK
GPIO90 - SSP3_SFRM
GPIO91 - SSP3_TXD
GPIO92 - SSP3_RXD
SSP4
GPIO93 - SSP4_CLK
GPIO94 - SSP4_SFRM
GPIO95 - SSP4_TXD
GPIO96 - SSP4_RXD
*/
static mfp_cfg_t mfp_cfg[] __initdata = {
/* USB */
GPIO10_UTM_CLK,
GPIO49_U2D_PHYDATA_0,
GPIO50_U2D_PHYDATA_1,
GPIO51_U2D_PHYDATA_2,
GPIO52_U2D_PHYDATA_3,
GPIO53_U2D_PHYDATA_4,
GPIO54_U2D_PHYDATA_5,
GPIO55_U2D_PHYDATA_6,
GPIO56_U2D_PHYDATA_7,
GPIO58_UTM_RXVALID,
GPIO59_UTM_RXACTIVE,
GPIO60_U2D_RXERROR,
GPIO61_U2D_OPMODE0,
GPIO62_U2D_OPMODE1,
GPIO71_GPIO, /* USBD_INT */
GPIO73_UTM_TXREADY,
GPIO83_U2D_TXVALID,
GPIO98_U2D_RESET,
GPIO99_U2D_XCVR_SEL,
GPIO100_U2D_TERM_SEL,
GPIO101_U2D_SUSPEND,
GPIO102_UTM_LINESTATE_0,
GPIO103_UTM_LINESTATE_1,
GPIO4_2_GPIO | MFP_PULL_HIGH, /* UTM_PULLUP */
/* DM9000 */
GPIO1_GPIO,
GPIO9_GPIO,
GPIO36_GPIO,
/* AC97 */
GPIO35_AC97_SDATA_IN_0,
GPIO37_AC97_SDATA_OUT,
GPIO38_AC97_SYNC,
GPIO39_AC97_BITCLK,
GPIO40_AC97_nACRESET,
/* UARTS */
GPIO41_UART1_RXD,
GPIO42_UART1_TXD,
GPIO43_UART1_CTS,
GPIO44_UART1_DCD,
GPIO45_UART1_DSR,
GPIO46_UART1_RI,
GPIO47_UART1_DTR,
GPIO48_UART1_RTS,
GPIO109_UART2_RTS,
GPIO110_UART2_RXD,
GPIO111_UART2_TXD,
GPIO112_UART2_CTS,
GPIO105_UART3_CTS,
GPIO106_UART3_RTS,
GPIO107_UART3_TXD,
GPIO108_UART3_RXD,
GPIO78_GPIO,
GPIO79_GPIO,
GPIO80_GPIO,
GPIO81_GPIO,
/* I2C */
GPIO32_I2C_SCL,
GPIO33_I2C_SDA,
/* MMC */
GPIO18_MMC1_DAT0,
GPIO19_MMC1_DAT1,
GPIO20_MMC1_DAT2,
GPIO21_MMC1_DAT3,
GPIO22_MMC1_CLK,
GPIO23_MMC1_CMD,
GPIO72_GPIO | MFP_PULL_HIGH, /* Card Detect */
GPIO84_GPIO | MFP_PULL_LOW, /* Write Protect */
/* IRQ */
GPIO74_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ1 */
GPIO75_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ2 */
GPIO76_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ3 */
GPIO77_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ4 */
GPIO78_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ5 */
GPIO79_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ6 */
GPIO80_GPIO | MFP_LPM_EDGE_RISE, /* EXT_IRQ7 */
GPIO81_GPIO | MFP_LPM_EDGE_RISE /* EXT_IRQ8 */
};
/* MMC/MCI Support */
#if defined(CONFIG_MMC)
static struct pxamci_platform_data mxm_8x10_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.detect_delay_ms = 10,
.gpio_card_detect = MXM_8X10_SD_nCD,
.gpio_card_ro = MXM_8X10_SD_WP,
.gpio_power = -1
};
void __init mxm_8x10_mmc_init(void)
{
pxa_set_mci_info(&mxm_8x10_mci_platform_data);
}
#endif
/* USB Open Host Controller Interface */
static struct pxaohci_platform_data mxm_8x10_ohci_platform_data = {
.port_mode = PMM_NPS_MODE,
.flags = ENABLE_PORT_ALL
};
void __init mxm_8x10_usb_host_init(void)
{
pxa_set_ohci_info(&mxm_8x10_ohci_platform_data);
}
/* AC97 Sound Support */
static struct platform_device mxm_8x10_ac97_device = {
.name = "pxa2xx-ac97"
};
void __init mxm_8x10_ac97_init(void)
{
platform_device_register(&mxm_8x10_ac97_device);
}
/* NAND flash Support */
#if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
#define NAND_BLOCK_SIZE SZ_128K
#define NB(x) (NAND_BLOCK_SIZE * (x))
static struct mtd_partition mxm_8x10_nand_partitions[] = {
[0] = {
.name = "boot",
.size = NB(0x002),
.offset = NB(0x000),
.mask_flags = MTD_WRITEABLE
},
[1] = {
.name = "kernel",
.size = NB(0x010),
.offset = NB(0x002),
.mask_flags = MTD_WRITEABLE
},
[2] = {
.name = "root",
.size = NB(0x36c),
.offset = NB(0x012)
},
[3] = {
.name = "bbt",
.size = NB(0x082),
.offset = NB(0x37e),
.mask_flags = MTD_WRITEABLE
}
};
static struct pxa3xx_nand_platform_data mxm_8x10_nand_info = {
.enable_arbiter = 1,
.keep_config = 1,
.num_cs = 1,
.parts[0] = mxm_8x10_nand_partitions,
.nr_parts[0] = ARRAY_SIZE(mxm_8x10_nand_partitions)
};
static void __init mxm_8x10_nand_init(void)
{
pxa3xx_set_nand_info(&mxm_8x10_nand_info);
}
#else
static inline void mxm_8x10_nand_init(void) {}
#endif /* CONFIG_MTD_NAND_PXA3xx || CONFIG_MTD_NAND_PXA3xx_MODULE */
/* Ethernet support: Davicom DM9000 */
static struct resource dm9k_resources[] = {
[0] = {
.start = MXM_8X10_ETH_PHYS + 0x300,
.end = MXM_8X10_ETH_PHYS + 0x300,
.flags = IORESOURCE_MEM
},
[1] = {
.start = MXM_8X10_ETH_PHYS + 0x308,
.end = MXM_8X10_ETH_PHYS + 0x308,
.flags = IORESOURCE_MEM
},
[2] = {
.start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
.end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE
}
};
static struct dm9000_plat_data dm9k_plat_data = {
.flags = DM9000_PLATF_16BITONLY
};
static struct platform_device dm9k_device = {
.name = "dm9000",
.id = 0,
.num_resources = ARRAY_SIZE(dm9k_resources),
.resource = dm9k_resources,
.dev = {
.platform_data = &dm9k_plat_data
}
};
static void __init mxm_8x10_ethernet_init(void)
{
platform_device_register(&dm9k_device);
}
/* PXA UARTs */
static void __init mxm_8x10_uarts_init(void)
{
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
}
/* I2C and Real Time Clock */
static struct i2c_board_info __initdata mxm_8x10_i2c_devices[] = {
{
I2C_BOARD_INFO("ds1337", 0x68)
}
};
static void __init mxm_8x10_i2c_init(void)
{
i2c_register_board_info(0, mxm_8x10_i2c_devices,
ARRAY_SIZE(mxm_8x10_i2c_devices));
pxa_set_i2c_info(NULL);
}
void __init mxm_8x10_barebones_init(void)
{
pxa3xx_mfp_config(ARRAY_AND_SIZE(mfp_cfg));
mxm_8x10_uarts_init();
mxm_8x10_nand_init();
mxm_8x10_i2c_init();
mxm_8x10_ethernet_init();
}