forked from Minki/linux
4bd597b633
The mxc-ehci driver calls SoC specific phy initialization right after calling board specific initialization. To offer greater flexibility for boards to setup the phy and to get rid of some unnecessary flags in platform data this patch lets the boards call the SoC specific phy initialization and remove it from the driver. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
447 lines
10 KiB
C
447 lines
10 KiB
C
/*
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* Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
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* Copyright (C) 2009 Sascha Hauer (kernel@pengutronix.de)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/i2c.h>
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#include <linux/i2c/at24.h>
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#include <linux/dma-mapping.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/eeprom.h>
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#include <linux/irq.h>
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#include <linux/delay.h>
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#include <linux/gpio.h>
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#include <linux/usb/otg.h>
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#include <linux/usb/ulpi.h>
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#include <asm/mach/arch.h>
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#include <asm/mach-types.h>
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#include <mach/common.h>
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#include <mach/hardware.h>
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#include <mach/iomux-mx27.h>
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#include <asm/mach/time.h>
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#include <mach/audmux.h>
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#include <mach/mxc_nand.h>
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#include <mach/irqs.h>
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#include <mach/ulpi.h>
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#include "devices-imx27.h"
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#define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
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#define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
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#define SPI1_SS0 (GPIO_PORTD + 28)
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#define SPI1_SS1 (GPIO_PORTD + 27)
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#define SD2_CD (GPIO_PORTC + 29)
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static const int pca100_pins[] __initconst = {
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/* UART1 */
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PE12_PF_UART1_TXD,
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PE13_PF_UART1_RXD,
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PE14_PF_UART1_CTS,
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PE15_PF_UART1_RTS,
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/* SDHC */
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PB4_PF_SD2_D0,
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PB5_PF_SD2_D1,
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PB6_PF_SD2_D2,
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PB7_PF_SD2_D3,
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PB8_PF_SD2_CMD,
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PB9_PF_SD2_CLK,
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SD2_CD | GPIO_GPIO | GPIO_IN,
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/* FEC */
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PD0_AIN_FEC_TXD0,
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PD1_AIN_FEC_TXD1,
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PD2_AIN_FEC_TXD2,
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PD3_AIN_FEC_TXD3,
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PD4_AOUT_FEC_RX_ER,
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PD5_AOUT_FEC_RXD1,
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PD6_AOUT_FEC_RXD2,
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PD7_AOUT_FEC_RXD3,
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PD8_AF_FEC_MDIO,
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PD9_AIN_FEC_MDC,
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PD10_AOUT_FEC_CRS,
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PD11_AOUT_FEC_TX_CLK,
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PD12_AOUT_FEC_RXD0,
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PD13_AOUT_FEC_RX_DV,
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PD14_AOUT_FEC_RX_CLK,
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PD15_AOUT_FEC_COL,
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PD16_AIN_FEC_TX_ER,
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PF23_AIN_FEC_TX_EN,
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/* SSI1 */
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PC20_PF_SSI1_FS,
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PC21_PF_SSI1_RXD,
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PC22_PF_SSI1_TXD,
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PC23_PF_SSI1_CLK,
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/* onboard I2C */
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PC5_PF_I2C2_SDA,
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PC6_PF_I2C2_SCL,
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/* external I2C */
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PD17_PF_I2C_DATA,
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PD18_PF_I2C_CLK,
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/* SPI1 */
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PD25_PF_CSPI1_RDY,
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PD29_PF_CSPI1_SCLK,
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PD30_PF_CSPI1_MISO,
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PD31_PF_CSPI1_MOSI,
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/* OTG */
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OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
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PC7_PF_USBOTG_DATA5,
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PC8_PF_USBOTG_DATA6,
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PC9_PF_USBOTG_DATA0,
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PC10_PF_USBOTG_DATA2,
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PC11_PF_USBOTG_DATA1,
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PC12_PF_USBOTG_DATA4,
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PC13_PF_USBOTG_DATA3,
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PE0_PF_USBOTG_NXT,
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PE1_PF_USBOTG_STP,
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PE2_PF_USBOTG_DIR,
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PE24_PF_USBOTG_CLK,
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PE25_PF_USBOTG_DATA7,
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/* USBH2 */
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USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
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PA0_PF_USBH2_CLK,
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PA1_PF_USBH2_DIR,
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PA2_PF_USBH2_DATA7,
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PA3_PF_USBH2_NXT,
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PA4_PF_USBH2_STP,
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PD19_AF_USBH2_DATA4,
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PD20_AF_USBH2_DATA3,
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PD21_AF_USBH2_DATA6,
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PD22_AF_USBH2_DATA0,
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PD23_AF_USBH2_DATA2,
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PD24_AF_USBH2_DATA1,
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PD26_AF_USBH2_DATA5,
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/* display */
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PA5_PF_LSCLK,
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PA6_PF_LD0,
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PA7_PF_LD1,
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PA8_PF_LD2,
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PA9_PF_LD3,
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PA10_PF_LD4,
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PA11_PF_LD5,
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PA12_PF_LD6,
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PA13_PF_LD7,
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PA14_PF_LD8,
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PA15_PF_LD9,
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PA16_PF_LD10,
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PA17_PF_LD11,
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PA18_PF_LD12,
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PA19_PF_LD13,
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PA20_PF_LD14,
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PA21_PF_LD15,
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PA22_PF_LD16,
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PA23_PF_LD17,
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PA26_PF_PS,
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PA28_PF_HSYNC,
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PA29_PF_VSYNC,
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PA31_PF_OE_ACD,
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/* free GPIO */
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GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
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GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
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GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
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};
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static const struct imxuart_platform_data uart_pdata __initconst = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static const struct mxc_nand_platform_data
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pca100_nand_board_info __initconst = {
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.width = 1,
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.hw_ecc = 1,
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};
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static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
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.bitrate = 100000,
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};
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static struct at24_platform_data board_eeprom = {
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.byte_len = 4096,
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.page_size = 32,
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.flags = AT24_FLAG_ADDR16,
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};
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static struct i2c_board_info pca100_i2c_devices[] = {
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{
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I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
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.platform_data = &board_eeprom,
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}, {
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I2C_BOARD_INFO("pcf8563", 0x51),
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}, {
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I2C_BOARD_INFO("lm75", 0x4a),
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}
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};
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static struct spi_eeprom at25320 = {
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.name = "at25320an",
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.byte_len = 4096,
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.page_size = 32,
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.flags = EE_ADDR2,
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};
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static struct spi_board_info pca100_spi_board_info[] __initdata = {
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{
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.modalias = "at25",
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.max_speed_hz = 30000,
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.bus_num = 0,
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.chip_select = 1,
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.platform_data = &at25320,
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},
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};
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static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};
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static const struct spi_imx_master pca100_spi0_data __initconst = {
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.chipselect = pca100_spi_cs,
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.num_chipselect = ARRAY_SIZE(pca100_spi_cs),
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};
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static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
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{
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mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
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gpio_set_value(GPIO_PORTC + 20, 1);
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udelay(2);
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gpio_set_value(GPIO_PORTC + 20, 0);
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mxc_gpio_mode(PC20_PF_SSI1_FS);
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msleep(2);
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}
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static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
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{
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mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */
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gpio_set_value(GPIO_PORTC + 20, 0);
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mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */
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gpio_set_value(GPIO_PORTC + 22, 0);
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mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */
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gpio_set_value(GPIO_PORTC + 28, 0);
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udelay(10);
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gpio_set_value(GPIO_PORTC + 28, 1);
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mxc_gpio_mode(PC20_PF_SSI1_FS);
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mxc_gpio_mode(PC22_PF_SSI1_TXD);
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msleep(2);
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}
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static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
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.ac97_reset = pca100_ac97_cold_reset,
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.ac97_warm_reset = pca100_ac97_warm_reset,
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.flags = IMX_SSI_USE_AC97,
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};
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static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
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void *data)
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{
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int ret;
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ret = request_irq(IRQ_GPIOC(29), detect_irq,
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IRQF_DISABLED | IRQF_TRIGGER_FALLING,
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"imx-mmc-detect", data);
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if (ret)
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printk(KERN_ERR
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"pca100: Failed to reuest irq for sd/mmc detection\n");
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return ret;
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}
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static void pca100_sdhc2_exit(struct device *dev, void *data)
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{
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free_irq(IRQ_GPIOC(29), data);
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}
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static const struct imxmmc_platform_data sdhc_pdata __initconst = {
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.init = pca100_sdhc2_init,
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.exit = pca100_sdhc2_exit,
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};
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#if defined(CONFIG_USB_ULPI)
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static int otg_phy_init(struct platform_device *pdev)
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{
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gpio_set_value(OTG_PHY_CS_GPIO, 0);
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mdelay(10);
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return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
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}
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static struct mxc_usbh_platform_data otg_pdata __initdata = {
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.init = otg_phy_init,
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.portsc = MXC_EHCI_MODE_ULPI,
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};
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static int usbh2_phy_init(struct platform_device *pdev)
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{
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gpio_set_value(USBH2_PHY_CS_GPIO, 0);
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mdelay(10);
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return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
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}
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static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
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.init = usbh2_phy_init,
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.portsc = MXC_EHCI_MODE_ULPI,
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};
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#endif
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static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
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.operating_mode = FSL_USB2_DR_DEVICE,
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.phy_mode = FSL_USB2_PHY_ULPI,
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};
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static int otg_mode_host;
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static int __init pca100_otg_mode(char *options)
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{
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if (!strcmp(options, "host"))
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otg_mode_host = 1;
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else if (!strcmp(options, "device"))
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otg_mode_host = 0;
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else
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pr_info("otg_mode neither \"host\" nor \"device\". "
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"Defaulting to device\n");
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return 0;
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}
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__setup("otg_mode=", pca100_otg_mode);
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/* framebuffer info */
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static struct imx_fb_videomode pca100_fb_modes[] = {
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{
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.mode = {
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.name = "EMERGING-ETV570G0DHU",
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.refresh = 60,
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.xres = 640,
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.yres = 480,
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.pixclock = 39722, /* in ps (25.175 MHz) */
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.hsync_len = 30,
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.left_margin = 114,
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.right_margin = 16,
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.vsync_len = 3,
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.upper_margin = 32,
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.lower_margin = 0,
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},
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/*
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* TFT
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* Pixel pol active high
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* HSYNC active low
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* VSYNC active low
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* use HSYNC for ACD count
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* line clock disable while idle
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* always enable line clock even if no data
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*/
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.pcr = 0xf0c08080,
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.bpp = 16,
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},
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};
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static const struct imx_fb_platform_data pca100_fb_data __initconst = {
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.mode = pca100_fb_modes,
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.num_modes = ARRAY_SIZE(pca100_fb_modes),
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.pwmr = 0x00A903FF,
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.lscr1 = 0x00120300,
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.dmacr = 0x00020010,
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};
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static void __init pca100_init(void)
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{
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int ret;
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/* SSI unit */
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mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
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MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
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MXC_AUDMUX_V1_PCR_TFCSEL(3) |
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MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
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MXC_AUDMUX_V1_PCR_RXDSEL(3));
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mxc_audmux_v1_configure_port(3,
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MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
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MXC_AUDMUX_V1_PCR_TFCSEL(0) |
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MXC_AUDMUX_V1_PCR_TFSDIR |
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MXC_AUDMUX_V1_PCR_RXDSEL(0));
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ret = mxc_gpio_setup_multiple_pins(pca100_pins,
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ARRAY_SIZE(pca100_pins), "PCA100");
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if (ret)
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printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
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imx27_add_imx_ssi(0, &pca100_ssi_pdata);
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imx27_add_imx_uart0(&uart_pdata);
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imx27_add_mxc_mmc(1, &sdhc_pdata);
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imx27_add_mxc_nand(&pca100_nand_board_info);
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/* only the i2c master 1 is used on this CPU card */
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i2c_register_board_info(1, pca100_i2c_devices,
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ARRAY_SIZE(pca100_i2c_devices));
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imx27_add_imx_i2c(1, &pca100_i2c1_data);
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mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
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mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
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spi_register_board_info(pca100_spi_board_info,
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ARRAY_SIZE(pca100_spi_board_info));
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imx27_add_spi_imx0(&pca100_spi0_data);
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gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
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gpio_direction_output(OTG_PHY_CS_GPIO, 1);
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gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
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gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
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#if defined(CONFIG_USB_ULPI)
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if (otg_mode_host) {
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otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
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ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
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imx27_add_mxc_ehci_otg(&otg_pdata);
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}
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usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
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ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
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imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
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#endif
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if (!otg_mode_host) {
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gpio_set_value(OTG_PHY_CS_GPIO, 0);
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imx27_add_fsl_usb2_udc(&otg_device_pdata);
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}
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imx27_add_imx_fb(&pca100_fb_data);
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imx27_add_fec(NULL);
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imx27_add_imx2_wdt(NULL);
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imx27_add_mxc_w1(NULL);
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}
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static void __init pca100_timer_init(void)
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{
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mx27_clocks_init(26000000);
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}
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static struct sys_timer pca100_timer = {
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.init = pca100_timer_init,
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};
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MACHINE_START(PCA100, "phyCARD-i.MX27")
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.boot_params = MX27_PHYS_OFFSET + 0x100,
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.map_io = mx27_map_io,
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.init_early = imx27_init_early,
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.init_irq = mx27_init_irq,
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.init_machine = pca100_init,
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.timer = &pca100_timer,
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MACHINE_END
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