1 files changed, 395 insertions, 0 deletions

diff --git a/arch/arm/mach-mx2/mach-pca100.c b/arch/arm/mach-mx2/mach-pca100.c
new file mode 100644
index 000000000000..778fff230918
--- /dev/null
+++ b/arch/arm/mach-mx2/mach-pca100.c
@@ -0,0 +1,395 @@
+/*
+ * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
+ * Copyright (C) 2009 Sascha Hauer (kernel@pengutronix.de)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/i2c.h>
+#include <linux/i2c/at24.h>
+#include <linux/dma-mapping.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/eeprom.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/ulpi.h>
+#include <linux/fsl_devices.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach-types.h>
+#include <mach/common.h>
+#include <mach/hardware.h>
+#include <mach/iomux-mx27.h>
+#include <mach/i2c.h>
+#include <asm/mach/time.h>
+#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
+#include <mach/spi.h>
+#endif
+#include <mach/imx-uart.h>
+#include <mach/audmux.h>
+#include <mach/ssi.h>
+#include <mach/mxc_nand.h>
+#include <mach/irqs.h>
+#include <mach/mmc.h>
+#include <mach/mxc_ehci.h>
+#include <mach/ulpi.h>
+
+#include "devices.h"
+
+#define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
+#define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
+
+static int pca100_pins[] = {
+        /* UART1 */
+        PE12_PF_UART1_TXD,
+        PE13_PF_UART1_RXD,
+        PE14_PF_UART1_CTS,
+        PE15_PF_UART1_RTS,
+        /* SDHC */
+        PB4_PF_SD2_D0,
+        PB5_PF_SD2_D1,
+        PB6_PF_SD2_D2,
+        PB7_PF_SD2_D3,
+        PB8_PF_SD2_CMD,
+        PB9_PF_SD2_CLK,
+        /* FEC */
+        PD0_AIN_FEC_TXD0,
+        PD1_AIN_FEC_TXD1,
+        PD2_AIN_FEC_TXD2,
+        PD3_AIN_FEC_TXD3,
+        PD4_AOUT_FEC_RX_ER,
+        PD5_AOUT_FEC_RXD1,
+        PD6_AOUT_FEC_RXD2,
+        PD7_AOUT_FEC_RXD3,
+        PD8_AF_FEC_MDIO,
+        PD9_AIN_FEC_MDC,
+        PD10_AOUT_FEC_CRS,
+        PD11_AOUT_FEC_TX_CLK,
+        PD12_AOUT_FEC_RXD0,
+        PD13_AOUT_FEC_RX_DV,
+        PD14_AOUT_FEC_RX_CLK,
+        PD15_AOUT_FEC_COL,
+        PD16_AIN_FEC_TX_ER,
+        PF23_AIN_FEC_TX_EN,
+        /* SSI1 */
+        PC20_PF_SSI1_FS,
+        PC21_PF_SSI1_RXD,
+        PC22_PF_SSI1_TXD,
+        PC23_PF_SSI1_CLK,
+        /* onboard I2C */
+        PC5_PF_I2C2_SDA,
+        PC6_PF_I2C2_SCL,
+        /* external I2C */
+        PD17_PF_I2C_DATA,
+        PD18_PF_I2C_CLK,
+        /* SPI1 */
+        PD25_PF_CSPI1_RDY,
+        PD29_PF_CSPI1_SCLK,
+        PD30_PF_CSPI1_MISO,
+        PD31_PF_CSPI1_MOSI,
+        /* OTG */
+        OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
+        PC7_PF_USBOTG_DATA5,
+        PC8_PF_USBOTG_DATA6,
+        PC9_PF_USBOTG_DATA0,
+        PC10_PF_USBOTG_DATA2,
+        PC11_PF_USBOTG_DATA1,
+        PC12_PF_USBOTG_DATA4,
+        PC13_PF_USBOTG_DATA3,
+        PE0_PF_USBOTG_NXT,
+        PE1_PF_USBOTG_STP,
+        PE2_PF_USBOTG_DIR,
+        PE24_PF_USBOTG_CLK,
+        PE25_PF_USBOTG_DATA7,
+        /* USBH2 */
+        USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
+        PA0_PF_USBH2_CLK,
+        PA1_PF_USBH2_DIR,
+        PA2_PF_USBH2_DATA7,
+        PA3_PF_USBH2_NXT,
+        PA4_PF_USBH2_STP,
+        PD19_AF_USBH2_DATA4,
+        PD20_AF_USBH2_DATA3,
+        PD21_AF_USBH2_DATA6,
+        PD22_AF_USBH2_DATA0,
+        PD23_AF_USBH2_DATA2,
+        PD24_AF_USBH2_DATA1,
+        PD26_AF_USBH2_DATA5,
+};
+
+static struct imxuart_platform_data uart_pdata = {
+        .flags = IMXUART_HAVE_RTSCTS,
+};
+
+static struct mxc_nand_platform_data pca100_nand_board_info = {
+        .width = 1,
+        .hw_ecc = 1,
+};
+
+static struct platform_device *platform_devices[] __initdata = {
+        &mxc_w1_master_device,
+        &mxc_fec_device,
+};
+
+static struct imxi2c_platform_data pca100_i2c_1_data = {
+        .bitrate = 100000,
+};
+
+static struct at24_platform_data board_eeprom = {
+        .byte_len = 4096,
+        .page_size = 32,
+        .flags = AT24_FLAG_ADDR16,
+};
+
+static struct i2c_board_info pca100_i2c_devices[] = {
+        {
+                I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
+                .platform_data = &board_eeprom,
+        }, {
+                I2C_BOARD_INFO("rtc-pcf8563", 0x51),
+                .type = "pcf8563"
+        }, {
+                I2C_BOARD_INFO("lm75", 0x4a),
+                .type = "lm75"
+        }
+};
+
+#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
+static struct spi_eeprom at25320 = {
+        .name           = "at25320an",
+        .byte_len       = 4096,
+        .page_size      = 32,
+        .flags          = EE_ADDR2,
+};
+
+static struct spi_board_info pca100_spi_board_info[] __initdata = {
+        {
+                .modalias = "at25",
+                .max_speed_hz = 30000,
+                .bus_num = 0,
+                .chip_select = 1,
+                .platform_data = &at25320,
+        },
+};
+
+static int pca100_spi_cs[] = {GPIO_PORTD + 28, GPIO_PORTD + 27};
+
+static struct spi_imx_master pca100_spi_0_data = {
+        .chipselect     = pca100_spi_cs,
+        .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
+};
+#endif
+
+static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
+{
+        mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
+        gpio_set_value(GPIO_PORTC + 20, 1);
+        udelay(2);
+        gpio_set_value(GPIO_PORTC + 20, 0);
+        mxc_gpio_mode(PC20_PF_SSI1_FS);
+        msleep(2);
+}
+
+static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
+{
+        mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);  /* FS */
+        gpio_set_value(GPIO_PORTC + 20, 0);
+        mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT);  /* TX */
+        gpio_set_value(GPIO_PORTC + 22, 0);
+        mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT);  /* reset */
+        gpio_set_value(GPIO_PORTC + 28, 0);
+        udelay(10);
+        gpio_set_value(GPIO_PORTC + 28, 1);
+        mxc_gpio_mode(PC20_PF_SSI1_FS);
+        mxc_gpio_mode(PC22_PF_SSI1_TXD);
+        msleep(2);
+}
+
+static struct imx_ssi_platform_data pca100_ssi_pdata = {
+        .ac97_reset             = pca100_ac97_cold_reset,
+        .ac97_warm_reset        = pca100_ac97_warm_reset,
+        .flags                  = IMX_SSI_USE_AC97,
+};
+
+static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
+                void *data)
+{
+        int ret;
+
+        ret = request_irq(IRQ_GPIOC(29), detect_irq,
+                          IRQF_DISABLED | IRQF_TRIGGER_FALLING,
+                          "imx-mmc-detect", data);
+        if (ret)
+                printk(KERN_ERR
+                        "pca100: Failed to reuest irq for sd/mmc detection\n");
+
+        return ret;
+}
+
+static void pca100_sdhc2_exit(struct device *dev, void *data)
+{
+        free_irq(IRQ_GPIOC(29), data);
+}
+
+static struct imxmmc_platform_data sdhc_pdata = {
+        .init = pca100_sdhc2_init,
+        .exit = pca100_sdhc2_exit,
+};
+
+static int otg_phy_init(struct platform_device *pdev)
+{
+        gpio_set_value(OTG_PHY_CS_GPIO, 0);
+        return 0;
+}
+
+static struct mxc_usbh_platform_data otg_pdata = {
+        .init   = otg_phy_init,
+        .portsc = MXC_EHCI_MODE_ULPI,
+        .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
+};
+
+static int usbh2_phy_init(struct platform_device *pdev)
+{
+        gpio_set_value(USBH2_PHY_CS_GPIO, 0);
+        return 0;
+}
+
+static struct mxc_usbh_platform_data usbh2_pdata = {
+        .init   = usbh2_phy_init,
+        .portsc = MXC_EHCI_MODE_ULPI,
+        .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
+};
+
+static struct fsl_usb2_platform_data otg_device_pdata = {
+        .operating_mode = FSL_USB2_DR_DEVICE,
+        .phy_mode       = FSL_USB2_PHY_ULPI,
+};
+
+static int otg_mode_host;
+
+static int __init pca100_otg_mode(char *options)
+{
+        if (!strcmp(options, "host"))
+                otg_mode_host = 1;
+        else if (!strcmp(options, "device"))
+                otg_mode_host = 0;
+        else
+                pr_info("otg_mode neither \"host\" nor \"device\". "
+                        "Defaulting to device\n");
+        return 0;
+}
+__setup("otg_mode=", pca100_otg_mode);
+
+static void __init pca100_init(void)
+{
+        int ret;
+
+        /* SSI unit */
+        mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
+                                  MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
+                                  MXC_AUDMUX_V1_PCR_TFCSEL(3) |
+                                  MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
+                                  MXC_AUDMUX_V1_PCR_RXDSEL(3));
+        mxc_audmux_v1_configure_port(3,
+                                  MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
+                                  MXC_AUDMUX_V1_PCR_TFCSEL(0) |
+                                  MXC_AUDMUX_V1_PCR_TFSDIR |
+                                  MXC_AUDMUX_V1_PCR_RXDSEL(0));
+
+        ret = mxc_gpio_setup_multiple_pins(pca100_pins,
+                        ARRAY_SIZE(pca100_pins), "PCA100");
+        if (ret)
+                printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
+
+        mxc_register_device(&imx_ssi_device0, &pca100_ssi_pdata);
+
+        mxc_register_device(&mxc_uart_device0, &uart_pdata);
+
+        mxc_gpio_mode(GPIO_PORTC | 29 | GPIO_GPIO | GPIO_IN);
+        mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata);
+
+        mxc_register_device(&imx27_nand_device, &pca100_nand_board_info);
+
+        /* only the i2c master 1 is used on this CPU card */
+        i2c_register_board_info(1, pca100_i2c_devices,
+                                ARRAY_SIZE(pca100_i2c_devices));
+
+        mxc_register_device(&mxc_i2c_device1, &pca100_i2c_1_data);
+
+        mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
+        mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_OUT);
+
+        /* GPIO0_IRQ */
+        mxc_gpio_mode(GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN);
+        /* GPIO1_IRQ */
+        mxc_gpio_mode(GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN);
+        /* GPIO2_IRQ */
+        mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN);
+
+#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
+        spi_register_board_info(pca100_spi_board_info,
+                                ARRAY_SIZE(pca100_spi_board_info));
+        mxc_register_device(&mxc_spi_device0, &pca100_spi_0_data);
+#endif
+
+        gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
+        gpio_direction_output(OTG_PHY_CS_GPIO, 1);
+        gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
+        gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
+
+#if defined(CONFIG_USB_ULPI)
+        if (otg_mode_host) {
+                otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
+                                USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
+
+                mxc_register_device(&mxc_otg_host, &otg_pdata);
+        }
+
+        usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
+                                USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
+
+        mxc_register_device(&mxc_usbh2, &usbh2_pdata);
+#endif
+        if (!otg_mode_host) {
+                gpio_set_value(OTG_PHY_CS_GPIO, 0);
+                mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
+        }
+
+        platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
+}
+
+static void __init pca100_timer_init(void)
+{
+        mx27_clocks_init(26000000);
+}
+
+static struct sys_timer pca100_timer = {
+        .init = pca100_timer_init,
+};
+
+MACHINE_START(PCA100, "phyCARD-i.MX27")
+        .phys_io        = MX27_AIPI_BASE_ADDR,
+        .io_pg_offst    = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
+        .boot_params    = MX27_PHYS_OFFSET + 0x100,
+        .map_io         = mx27_map_io,
+        .init_irq       = mx27_init_irq,
+        .init_machine   = pca100_init,
+        .timer          = &pca100_timer,
+MACHINE_END
+