mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
a927ef895e
Since dm9000 driver added support for a vcc regulator, platform data
based platforms have their ethernet broken, as the regulator claiming
returns -EPROBE_DEFER and prevents dm9000 loading.
This patch fixes this for all pxa boards using dm9000, by using the
specific regulator_has_full_constraints() function.
This was discovered and tested on the cm-x300 board.
Fixes: 7994fe55a4 ("dm9000: Add regulator and reset support to dm9000")
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
333 lines
8 KiB
C
333 lines
8 KiB
C
/*
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* linux/arch/arm/mach-pxa/colibri-pxa270.c
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*
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* Support for Toradex PXA270 based Colibri module
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* Daniel Mack <daniel@caiaq.de>
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* Marek Vasut <marek.vasut@gmail.com>
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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/init.h>
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#include <linux/interrupt.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <linux/platform_device.h>
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#include <linux/regulator/machine.h>
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#include <linux/ucb1400.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/flash.h>
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#include <asm/mach-types.h>
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#include <asm/sizes.h>
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#include <mach/audio.h>
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#include <mach/colibri.h>
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#include <mach/pxa27x.h>
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#include "devices.h"
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#include "generic.h"
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/******************************************************************************
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* Evaluation board MFP
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******************************************************************************/
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#ifdef CONFIG_MACH_COLIBRI_EVALBOARD
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static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {
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/* MMC */
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GPIO32_MMC_CLK,
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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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GPIO112_MMC_CMD,
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GPIO0_GPIO, /* SD detect */
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/* FFUART */
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GPIO39_FFUART_TXD,
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GPIO34_FFUART_RXD,
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/* UHC */
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GPIO88_USBH1_PWR,
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GPIO89_USBH1_PEN,
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GPIO119_USBH2_PWR,
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GPIO120_USBH2_PEN,
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/* PCMCIA */
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GPIO85_nPCE_1,
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GPIO54_nPCE_2,
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GPIO55_nPREG,
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GPIO50_nPIOR,
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GPIO51_nPIOW,
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GPIO49_nPWE,
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GPIO48_nPOE,
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GPIO57_nIOIS16,
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GPIO56_nPWAIT,
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GPIO104_PSKTSEL,
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GPIO53_GPIO, /* RESET */
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GPIO83_GPIO, /* BVD1 */
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GPIO82_GPIO, /* BVD2 */
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GPIO1_GPIO, /* READY */
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GPIO84_GPIO, /* DETECT */
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GPIO107_GPIO, /* PPEN */
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/* I2C */
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GPIO117_I2C_SCL,
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GPIO118_I2C_SDA,
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};
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#else
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static mfp_cfg_t colibri_pxa270_evalboard_pin_config[] __initdata = {};
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#endif
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#ifdef CONFIG_MACH_COLIBRI_PXA270_INCOME
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static mfp_cfg_t income_pin_config[] __initdata = {
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/* MMC */
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GPIO32_MMC_CLK,
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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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GPIO112_MMC_CMD,
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GPIO0_GPIO, /* SD detect */
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GPIO1_GPIO, /* SD read-only */
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/* FFUART */
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GPIO39_FFUART_TXD,
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GPIO34_FFUART_RXD,
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/* BFUART */
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GPIO42_BTUART_RXD,
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GPIO43_BTUART_TXD,
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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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/* UHC */
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GPIO88_USBH1_PWR,
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GPIO89_USBH1_PEN,
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/* LCD */
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GPIOxx_LCD_TFT_16BPP,
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/* PWM */
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GPIO16_PWM0_OUT,
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/* I2C */
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GPIO117_I2C_SCL,
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GPIO118_I2C_SDA,
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/* LED */
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GPIO54_GPIO, /* LED A */
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GPIO55_GPIO, /* LED B */
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};
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#else
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static mfp_cfg_t income_pin_config[] __initdata = {};
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#endif
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/******************************************************************************
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* Pin configuration
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******************************************************************************/
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static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
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/* Ethernet */
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GPIO78_nCS_2, /* Ethernet CS */
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GPIO114_GPIO, /* Ethernet IRQ */
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/* AC97 */
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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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GPIO95_AC97_nRESET,
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GPIO98_AC97_SYSCLK,
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GPIO113_GPIO, /* Touchscreen IRQ */
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};
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/******************************************************************************
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* NOR Flash
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******************************************************************************/
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#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
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static struct mtd_partition colibri_partitions[] = {
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{
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.name = "Bootloader",
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.offset = 0x00000000,
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.size = 0x00040000,
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.mask_flags = MTD_WRITEABLE /* force read-only */
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}, {
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.name = "Kernel",
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.offset = 0x00040000,
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.size = 0x00400000,
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.mask_flags = 0
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}, {
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.name = "Rootfs",
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.offset = 0x00440000,
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.size = MTDPART_SIZ_FULL,
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.mask_flags = 0
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}
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};
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static struct physmap_flash_data colibri_flash_data[] = {
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{
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.width = 4, /* bankwidth in bytes */
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.parts = colibri_partitions,
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.nr_parts = ARRAY_SIZE(colibri_partitions)
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}
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};
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static struct resource colibri_pxa270_flash_resource = {
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.start = PXA_CS0_PHYS,
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.end = PXA_CS0_PHYS + SZ_32M - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device colibri_pxa270_flash_device = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = colibri_flash_data,
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},
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.resource = &colibri_pxa270_flash_resource,
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.num_resources = 1,
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};
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static void __init colibri_pxa270_nor_init(void)
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{
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platform_device_register(&colibri_pxa270_flash_device);
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}
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#else
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static inline void colibri_pxa270_nor_init(void) {}
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#endif
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/******************************************************************************
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* Ethernet
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******************************************************************************/
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#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
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static struct resource colibri_pxa270_dm9000_resources[] = {
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{
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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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{
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.start = PXA_CS2_PHYS + 4,
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.end = PXA_CS2_PHYS + 4 + 500,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
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.end = PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
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.flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
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},
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};
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static struct platform_device colibri_pxa270_dm9000_device = {
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.name = "dm9000",
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.id = -1,
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.num_resources = ARRAY_SIZE(colibri_pxa270_dm9000_resources),
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.resource = colibri_pxa270_dm9000_resources,
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};
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static void __init colibri_pxa270_eth_init(void)
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{
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platform_device_register(&colibri_pxa270_dm9000_device);
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}
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#else
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static inline void colibri_pxa270_eth_init(void) {}
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#endif
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/******************************************************************************
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* Audio and Touchscreen
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******************************************************************************/
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#if defined(CONFIG_TOUCHSCREEN_UCB1400) || \
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defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
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static pxa2xx_audio_ops_t colibri_pxa270_ac97_pdata = {
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.reset_gpio = 95,
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};
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static struct ucb1400_pdata colibri_pxa270_ucb1400_pdata = {
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.irq = PXA_GPIO_TO_IRQ(GPIO113_COLIBRI_PXA270_TS_IRQ),
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};
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static struct platform_device colibri_pxa270_ucb1400_device = {
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.name = "ucb1400_core",
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.id = -1,
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.dev = {
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.platform_data = &colibri_pxa270_ucb1400_pdata,
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},
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};
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static void __init colibri_pxa270_tsc_init(void)
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{
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pxa_set_ac97_info(&colibri_pxa270_ac97_pdata);
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platform_device_register(&colibri_pxa270_ucb1400_device);
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}
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#else
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static inline void colibri_pxa270_tsc_init(void) {}
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#endif
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static int colibri_pxa270_baseboard;
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core_param(colibri_pxa270_baseboard, colibri_pxa270_baseboard, int, 0444);
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static void __init colibri_pxa270_init(void)
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{
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pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
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colibri_pxa270_nor_init();
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colibri_pxa270_eth_init();
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colibri_pxa270_tsc_init();
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switch (colibri_pxa270_baseboard) {
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case COLIBRI_EVALBOARD:
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pxa2xx_mfp_config(ARRAY_AND_SIZE(
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colibri_pxa270_evalboard_pin_config));
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colibri_evalboard_init();
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break;
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case COLIBRI_PXA270_INCOME:
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pxa2xx_mfp_config(ARRAY_AND_SIZE(income_pin_config));
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colibri_pxa270_income_boardinit();
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break;
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default:
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printk(KERN_ERR "Illegal colibri_pxa270_baseboard type %d\n",
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colibri_pxa270_baseboard);
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}
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regulator_has_full_constraints();
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}
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/* The "Income s.r.o. SH-Dmaster PXA270 SBC" board can be booted either
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* with the INCOME mach type or with COLIBRI and the kernel parameter
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* "colibri_pxa270_baseboard=1"
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*/
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static void __init colibri_pxa270_income_init(void)
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{
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colibri_pxa270_baseboard = COLIBRI_PXA270_INCOME;
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colibri_pxa270_init();
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}
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MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
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.atag_offset = 0x100,
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.init_machine = colibri_pxa270_init,
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.map_io = pxa27x_map_io,
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.nr_irqs = PXA_NR_IRQS,
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.init_irq = pxa27x_init_irq,
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.handle_irq = pxa27x_handle_irq,
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.init_time = pxa_timer_init,
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.restart = pxa_restart,
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MACHINE_END
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MACHINE_START(INCOME, "Income s.r.o. SH-Dmaster PXA270 SBC")
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.atag_offset = 0x100,
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.init_machine = colibri_pxa270_income_init,
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.map_io = pxa27x_map_io,
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.nr_irqs = PXA_NR_IRQS,
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.init_irq = pxa27x_init_irq,
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.handle_irq = pxa27x_handle_irq,
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.init_time = pxa_timer_init,
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.restart = pxa_restart,
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MACHINE_END
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