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alistair23-linux/arch/arm/mach-pxa/mxm8x10.c
Linus Walleij f54005b508 mmc: pxa: Use GPIO descriptor for power 
After converting the PXA driver to use GPIO descriptors for
card detect and write protect it is relatively simple to
convert it to also use a descriptor for getting the optional
power control GPIO.

The polarity inversion flag can also go away from the platform
data since this is indicated in the GPIO machine descriptor
table.

Cc: Daniel Mack <daniel@zonque.org>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Andrea Adami <andrea.adami@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-12-17 08:26:24 +01:00

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11 KiB
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/*
* 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/machine.h>
#include <linux/platform_data/i2c-pxa.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 "pxa320.h"
#include "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,
};
static struct gpiod_lookup_table mxm_8x10_mci_gpio_table = {
.dev_id = "pxa2xx-mci.0",
.table = {
/* Card detect on GPIO 72 */
GPIO_LOOKUP("gpio-pxa", MXM_8X10_SD_nCD,
"cd", GPIO_ACTIVE_LOW),
/* Write protect on GPIO 84 */
GPIO_LOOKUP("gpio-pxa", MXM_8X10_SD_WP,
"wp", GPIO_ACTIVE_LOW),
{ },
},
};
void __init mxm_8x10_mmc_init(void)
{
gpiod_add_lookup_table(&mxm_8x10_mci_gpio_table);
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 IS_ENABLED(CONFIG_MTD_NAND_MARVELL)
#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 = {
.keep_config = 1,
.parts = mxm_8x10_nand_partitions,
.nr_parts = 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 /* IS_ENABLED(CONFIG_MTD_NAND_MARVELL) */
/* 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();
}
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