i.MX35: add cpuimx35 support and its baseboard

* cpuimx35 integrates i.MX35, RAM, NAND, Ethernet, I2C RTC, USB Host,
USB OTG and I2C touchscreen controller
* mbimxsd provides access to LCD, Audio, LED, Switch button, UART ...

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

4 files changed, 513 insertions, 0 deletions

diff --git a/arch/arm/mach-mx3/Kconfig b/arch/arm/mach-mx3/Kconfig
index 344753fdf25e..b09e9a94adf1 100644
--- a/arch/arm/mach-mx3/Kconfig
+++ b/arch/arm/mach-mx3/Kconfig
@@ -125,4 +125,26 @@ config MACH_KZM_ARM11_01
           Include support for KZM-ARM11-01. This includes specific
           configurations for the board and its peripherals.
 
+config MACH_EUKREA_CPUIMX35
+        bool "Support Eukrea CPUIMX35 Platform"
+        select ARCH_MX35
+        select MXC_ULPI if USB_ULPI
+        help
+          Include support for Eukrea CPUIMX35 platform. This includes
+          specific configurations for the board and its peripherals.
+
+choice
+        prompt "Baseboard"
+        depends on MACH_EUKREA_CPUIMX35
+        default MACH_EUKREA_MBIMXSD_BASEBOARD
+
+config MACH_EUKREA_MBIMXSD_BASEBOARD
+        prompt "Eukrea MBIMXSD development board"
+        bool
+        help
+          This adds board specific devices that can be found on Eukrea's
+          MBIMXSD evaluation board.
+
+endchoice
+
 endif
diff --git a/arch/arm/mach-mx3/Makefile b/arch/arm/mach-mx3/Makefile
index 5d650fda5d5d..ef68ff55a7b6 100644
--- a/arch/arm/mach-mx3/Makefile
+++ b/arch/arm/mach-mx3/Makefile
@@ -24,3 +24,5 @@ obj-$(CONFIG_MACH_PCM043)	+= mach-pcm043.o
 obj-$(CONFIG_MACH_ARMADILLO5X0) += mach-armadillo5x0.o
 obj-$(CONFIG_MACH_MX35_3DS)     += mach-mx35pdk.o
 obj-$(CONFIG_MACH_KZM_ARM11_01) += mach-kzm_arm11_01.o
+obj-$(CONFIG_MACH_EUKREA_CPUIMX35)      += mach-cpuimx35.o
+obj-$(CONFIG_MACH_EUKREA_MBIMXSD_BASEBOARD)     += eukrea_mbimxsd-baseboard.o
diff --git a/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c b/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c
new file mode 100644
index 000000000000..678597852443
--- /dev/null
+++ b/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c
@@ -0,0 +1,263 @@
+/*
+ * Copyright (C) 2010 Eric Benard - eric@eukrea.com
+ *
+ * Based on pcm970-baseboard.c which is :
+ * Copyright (C) 2008 Juergen Beisert (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/types.h>
+#include <linux/init.h>
+
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/leds.h>
+#include <linux/platform_device.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <video/platform_lcd.h>
+#include <linux/i2c.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/mach/map.h>
+
+#include <mach/board-eukrea_cpuimx35.h>
+#include <mach/hardware.h>
+#include <mach/common.h>
+#include <mach/imx-uart.h>
+#include <mach/iomux-mx35.h>
+#include <mach/ipu.h>
+#include <mach/mx3fb.h>
+#include <mach/audmux.h>
+#include <mach/ssi.h>
+
+#include "devices.h"
+
+static const struct fb_videomode fb_modedb[] = {
+        {
+                .name           = "CMO_QVGA",
+                .refresh        = 60,
+                .xres           = 320,
+                .yres           = 240,
+                .pixclock       = KHZ2PICOS(6500),
+                .left_margin    = 68,
+                .right_margin   = 20,
+                .upper_margin   = 15,
+                .lower_margin   = 4,
+                .hsync_len      = 30,
+                .vsync_len      = 3,
+                .sync           = 0,
+                .vmode          = FB_VMODE_NONINTERLACED,
+                .flag           = 0,
+        },
+};
+
+static struct ipu_platform_data mx3_ipu_data = {
+        .irq_base = MXC_IPU_IRQ_START,
+};
+
+static struct mx3fb_platform_data mx3fb_pdata = {
+        .dma_dev        = &mx3_ipu.dev,
+        .name           = "CMO_QVGA",
+        .mode           = fb_modedb,
+        .num_modes      = ARRAY_SIZE(fb_modedb),
+};
+
+static struct pad_desc eukrea_mbimxsd_pads[] = {
+        /* LCD */
+        MX35_PAD_LD0__IPU_DISPB_DAT_0,
+        MX35_PAD_LD1__IPU_DISPB_DAT_1,
+        MX35_PAD_LD2__IPU_DISPB_DAT_2,
+        MX35_PAD_LD3__IPU_DISPB_DAT_3,
+        MX35_PAD_LD4__IPU_DISPB_DAT_4,
+        MX35_PAD_LD5__IPU_DISPB_DAT_5,
+        MX35_PAD_LD6__IPU_DISPB_DAT_6,
+        MX35_PAD_LD7__IPU_DISPB_DAT_7,
+        MX35_PAD_LD8__IPU_DISPB_DAT_8,
+        MX35_PAD_LD9__IPU_DISPB_DAT_9,
+        MX35_PAD_LD10__IPU_DISPB_DAT_10,
+        MX35_PAD_LD11__IPU_DISPB_DAT_11,
+        MX35_PAD_LD12__IPU_DISPB_DAT_12,
+        MX35_PAD_LD13__IPU_DISPB_DAT_13,
+        MX35_PAD_LD14__IPU_DISPB_DAT_14,
+        MX35_PAD_LD15__IPU_DISPB_DAT_15,
+        MX35_PAD_LD16__IPU_DISPB_DAT_16,
+        MX35_PAD_LD17__IPU_DISPB_DAT_17,
+        MX35_PAD_D3_HSYNC__IPU_DISPB_D3_HSYNC,
+        MX35_PAD_D3_FPSHIFT__IPU_DISPB_D3_CLK,
+        MX35_PAD_D3_DRDY__IPU_DISPB_D3_DRDY,
+        MX35_PAD_D3_VSYNC__IPU_DISPB_D3_VSYNC,
+        /* Backlight */
+        MX35_PAD_CONTRAST__IPU_DISPB_CONTR,
+        /* LCD_PWR */
+        MX35_PAD_D3_CLS__GPIO1_4,
+        /* LED */
+        MX35_PAD_LD23__GPIO3_29,
+        /* SWITCH */
+        MX35_PAD_LD19__GPIO3_25,
+        /* UART2 */
+        MX35_PAD_CTS2__UART2_CTS,
+        MX35_PAD_RTS2__UART2_RTS,
+        MX35_PAD_TXD2__UART2_TXD_MUX,
+        MX35_PAD_RXD2__UART2_RXD_MUX,
+        /* I2S */
+        MX35_PAD_STXFS4__AUDMUX_AUD4_TXFS,
+        MX35_PAD_STXD4__AUDMUX_AUD4_TXD,
+        MX35_PAD_SRXD4__AUDMUX_AUD4_RXD,
+        MX35_PAD_SCK4__AUDMUX_AUD4_TXC,
+};
+
+#define GPIO_LED1       (2 * 32 + 29)
+#define GPIO_SWITCH1    (2 * 32 + 25)
+#define GPIO_LCDPWR     (4)
+
+static void eukrea_mbimxsd_lcd_power_set(struct plat_lcd_data *pd,
+                                   unsigned int power)
+{
+        if (power)
+                gpio_direction_output(GPIO_LCDPWR, 1);
+        else
+                gpio_direction_output(GPIO_LCDPWR, 0);
+}
+
+static struct plat_lcd_data eukrea_mbimxsd_lcd_power_data = {
+        .set_power              = eukrea_mbimxsd_lcd_power_set,
+};
+
+static struct platform_device eukrea_mbimxsd_lcd_powerdev = {
+        .name                   = "platform-lcd",
+        .dev.platform_data      = &eukrea_mbimxsd_lcd_power_data,
+};
+
+static struct gpio_led eukrea_mbimxsd_leds[] = {
+        {
+                .name                   = "led1",
+                .default_trigger        = "heartbeat",
+                .active_low             = 1,
+                .gpio                   = GPIO_LED1,
+        },
+};
+
+static struct gpio_led_platform_data eukrea_mbimxsd_led_info = {
+        .leds           = eukrea_mbimxsd_leds,
+        .num_leds       = ARRAY_SIZE(eukrea_mbimxsd_leds),
+};
+
+static struct platform_device eukrea_mbimxsd_leds_gpio = {
+        .name   = "leds-gpio",
+        .id     = -1,
+        .dev    = {
+                .platform_data  = &eukrea_mbimxsd_led_info,
+        },
+};
+
+static struct gpio_keys_button eukrea_mbimxsd_gpio_buttons[] = {
+        {
+                .gpio           = GPIO_SWITCH1,
+                .code           = BTN_0,
+                .desc           = "BP1",
+                .active_low     = 1,
+                .wakeup         = 1,
+        },
+};
+
+static struct gpio_keys_platform_data eukrea_mbimxsd_button_data = {
+        .buttons        = eukrea_mbimxsd_gpio_buttons,
+        .nbuttons       = ARRAY_SIZE(eukrea_mbimxsd_gpio_buttons),
+};
+
+static struct platform_device eukrea_mbimxsd_button_device = {
+        .name           = "gpio-keys",
+        .id             = -1,
+        .num_resources  = 0,
+        .dev            = {
+                .platform_data  = &eukrea_mbimxsd_button_data,
+        }
+};
+
+static struct platform_device *platform_devices[] __initdata = {
+        &eukrea_mbimxsd_leds_gpio,
+        &eukrea_mbimxsd_button_device,
+        &eukrea_mbimxsd_lcd_powerdev,
+};
+
+static struct imxuart_platform_data uart_pdata = {
+        .flags = IMXUART_HAVE_RTSCTS,
+};
+
+static struct i2c_board_info eukrea_mbimxsd_i2c_devices[] = {
+        {
+                I2C_BOARD_INFO("tlv320aic23", 0x1a),
+        },
+};
+
+struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata = {
+        .flags = IMX_SSI_SYN | IMX_SSI_NET | IMX_SSI_USE_I2S_SLAVE,
+};
+
+/*
+ * system init for baseboard usage. Will be called by cpuimx35 init.
+ *
+ * Add platform devices present on this baseboard and init
+ * them from CPU side as far as required to use them later on
+ */
+void __init eukrea_mbimxsd_baseboard_init(void)
+{
+        if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,
+                        ARRAY_SIZE(eukrea_mbimxsd_pads)))
+                printk(KERN_ERR "error setting mbimxsd pads !\n");
+
+#if defined(CONFIG_SND_SOC_EUKREA_TLV320)
+        /* SSI unit master I2S codec connected to SSI_AUD4 */
+        mxc_audmux_v2_configure_port(0,
+                        MXC_AUDMUX_V2_PTCR_SYN |
+                        MXC_AUDMUX_V2_PTCR_TFSDIR |
+                        MXC_AUDMUX_V2_PTCR_TFSEL(3) |
+                        MXC_AUDMUX_V2_PTCR_TCLKDIR |
+                        MXC_AUDMUX_V2_PTCR_TCSEL(3),
+                        MXC_AUDMUX_V2_PDCR_RXDSEL(3)
+        );
+        mxc_audmux_v2_configure_port(3,
+                        MXC_AUDMUX_V2_PTCR_SYN,
+                        MXC_AUDMUX_V2_PDCR_RXDSEL(0)
+        );
+#endif
+
+        mxc_register_device(&mxc_uart_device1, &uart_pdata);
+        mxc_register_device(&mx3_ipu, &mx3_ipu_data);
+        mxc_register_device(&mx3_fb, &mx3fb_pdata);
+
+        mxc_register_device(&imx_ssi_device0, &eukrea_mbimxsd_ssi_pdata);
+
+        gpio_request(GPIO_LED1, "LED1");
+        gpio_direction_output(GPIO_LED1, 1);
+        gpio_free(GPIO_LED1);
+
+        gpio_request(GPIO_SWITCH1, "SWITCH1");
+        gpio_direction_input(GPIO_SWITCH1);
+        gpio_free(GPIO_SWITCH1);
+
+        gpio_request(GPIO_LCDPWR, "LCDPWR");
+        gpio_direction_output(GPIO_LCDPWR, 1);
+        gpio_free(GPIO_SWITCH1);
+
+        i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices,
+                                ARRAY_SIZE(eukrea_mbimxsd_i2c_devices));
+
+        platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
+}
diff --git a/arch/arm/mach-mx3/mach-cpuimx35.c b/arch/arm/mach-mx3/mach-cpuimx35.c
new file mode 100644
index 000000000000..55caa5cb8bc7
--- /dev/null
+++ b/arch/arm/mach-mx3/mach-cpuimx35.c
@@ -0,0 +1,226 @@
+/*
+ * Copyright (C) 2010 Eric Benard - eric@eukrea.com
+ * Copyright (C) 2009 Sascha Hauer, Pengutronix
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+
+#include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
+#include <linux/memory.h>
+#include <linux/gpio.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/i2c/tsc2007.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/ulpi.h>
+#include <linux/fsl_devices.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/mach/map.h>
+
+#include <mach/board-eukrea_cpuimx35.h>
+#include <mach/hardware.h>
+#include <mach/common.h>
+#include <mach/imx-uart.h>
+#include <mach/i2c.h>
+#include <mach/iomux-mx35.h>
+#include <mach/mxc_nand.h>
+#include <mach/mxc_ehci.h>
+#include <mach/ulpi.h>
+
+#include "devices.h"
+
+static struct imxuart_platform_data uart_pdata = {
+        .flags = IMXUART_HAVE_RTSCTS,
+};
+
+static struct imxi2c_platform_data eukrea_cpuimx35_i2c_1_data = {
+        .bitrate = 50000,
+};
+
+#define TSC2007_IRQGPIO         (2 * 32 + 2)
+static int ts_get_pendown_state(void)
+{
+        int val = 0;
+        gpio_free(TSC2007_IRQGPIO);
+        gpio_request(TSC2007_IRQGPIO, NULL);
+        gpio_direction_input(TSC2007_IRQGPIO);
+
+        val = gpio_get_value(TSC2007_IRQGPIO);
+
+        gpio_free(TSC2007_IRQGPIO);
+        gpio_request(TSC2007_IRQGPIO, NULL);
+
+        return val ? 0 : 1;
+}
+
+static int ts_init(void)
+{
+        gpio_request(TSC2007_IRQGPIO, NULL);
+        return 0;
+}
+
+static struct tsc2007_platform_data tsc2007_info = {
+        .model                  = 2007,
+        .x_plate_ohms           = 180,
+        .get_pendown_state      = ts_get_pendown_state,
+        .init_platform_hw       = ts_init,
+};
+
+static struct i2c_board_info eukrea_cpuimx35_i2c_devices[] = {
+        {
+                I2C_BOARD_INFO("pcf8563", 0x51),
+        }, {
+                I2C_BOARD_INFO("tsc2007", 0x48),
+                .type           = "tsc2007",
+                .platform_data  = &tsc2007_info,
+                .irq            = gpio_to_irq(TSC2007_IRQGPIO),
+        },
+};
+
+static struct platform_device *devices[] __initdata = {
+        &mxc_fec_device,
+        &imx_wdt_device0,
+};
+
+static struct pad_desc eukrea_cpuimx35_pads[] = {
+        /* UART1 */
+        MX35_PAD_CTS1__UART1_CTS,
+        MX35_PAD_RTS1__UART1_RTS,
+        MX35_PAD_TXD1__UART1_TXD_MUX,
+        MX35_PAD_RXD1__UART1_RXD_MUX,
+        /* FEC */
+        MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
+        MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
+        MX35_PAD_FEC_RX_DV__FEC_RX_DV,
+        MX35_PAD_FEC_COL__FEC_COL,
+        MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
+        MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
+        MX35_PAD_FEC_TX_EN__FEC_TX_EN,
+        MX35_PAD_FEC_MDC__FEC_MDC,
+        MX35_PAD_FEC_MDIO__FEC_MDIO,
+        MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
+        MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
+        MX35_PAD_FEC_CRS__FEC_CRS,
+        MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
+        MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
+        MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
+        MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
+        MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
+        MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
+        /* I2C1 */
+        MX35_PAD_I2C1_CLK__I2C1_SCL,
+        MX35_PAD_I2C1_DAT__I2C1_SDA,
+        /* TSC2007 IRQ */
+        MX35_PAD_ATA_DA2__GPIO3_2,
+};
+
+static struct mxc_nand_platform_data pcm037_nand_board_info = {
+        .width          = 1,
+        .hw_ecc         = 1,
+        .flash_bbt      = 1,
+};
+
+static struct mxc_usbh_platform_data otg_pdata = {
+        .portsc = MXC_EHCI_MODE_UTMI,
+        .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
+};
+
+static struct mxc_usbh_platform_data usbh1_pdata = {
+        .portsc = MXC_EHCI_MODE_SERIAL,
+        .flags  = MXC_EHCI_INTERFACE_SINGLE_UNI | MXC_EHCI_INTERNAL_PHY |
+                  MXC_EHCI_IPPUE_DOWN,
+};
+
+static struct fsl_usb2_platform_data otg_device_pdata = {
+        .operating_mode = FSL_USB2_DR_DEVICE,
+        .phy_mode       = FSL_USB2_PHY_UTMI,
+};
+
+static int otg_mode_host;
+
+static int __init eukrea_cpuimx35_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=", eukrea_cpuimx35_otg_mode);
+
+/*
+ * Board specific initialization.
+ */
+static void __init mxc_board_init(void)
+{
+        mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx35_pads,
+                        ARRAY_SIZE(eukrea_cpuimx35_pads));
+
+        platform_add_devices(devices, ARRAY_SIZE(devices));
+
+        mxc_register_device(&mxc_uart_device0, &uart_pdata);
+        mxc_register_device(&mxc_nand_device, &pcm037_nand_board_info);
+
+        i2c_register_board_info(0, eukrea_cpuimx35_i2c_devices,
+                        ARRAY_SIZE(eukrea_cpuimx35_i2c_devices));
+        mxc_register_device(&mxc_i2c_device0, &eukrea_cpuimx35_i2c_1_data);
+
+#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);
+        }
+        mxc_register_device(&mxc_usbh1, &usbh1_pdata);
+#endif
+        if (!otg_mode_host)
+                mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
+
+#ifdef CONFIG_MACH_EUKREA_MBIMXSD_BASEBOARD
+        eukrea_mbimxsd_baseboard_init();
+#endif
+}
+
+static void __init eukrea_cpuimx35_timer_init(void)
+{
+        mx35_clocks_init();
+}
+
+struct sys_timer eukrea_cpuimx35_timer = {
+        .init   = eukrea_cpuimx35_timer_init,
+};
+
+MACHINE_START(EUKREA_CPUIMX35, "Eukrea CPUIMX35")
+        /* Maintainer: Eukrea Electromatique */
+        .phys_io        = MX35_AIPS1_BASE_ADDR,
+        .io_pg_offst    = ((MX35_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
+        .boot_params    = MX3x_PHYS_OFFSET + 0x100,
+        .map_io         = mx35_map_io,
+        .init_irq       = mx35_init_irq,
+        .init_machine   = mxc_board_init,
+        .timer          = &eukrea_cpuimx35_timer,
+MACHINE_END