i.MX25: add cpuimx25 module and its baseboard

* cpuimx25 integrates i.MX25, RAM, NAND, Ethernet, I2C RTC, USB Host
and USB OTG
* 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>

5 files changed, 492 insertions, 0 deletions

diff --git a/arch/arm/mach-mx25/Kconfig b/arch/arm/mach-mx25/Kconfig
index 54d217314ee..3a6668eebf9 100644
--- a/arch/arm/mach-mx25/Kconfig
+++ b/arch/arm/mach-mx25/Kconfig
@@ -5,4 +5,22 @@ comment "MX25 platforms:"
 config MACH_MX25_3DS
         bool "Support MX25PDK (3DS) Platform"
 
+config MACH_EUKREA_CPUIMX25
+        bool "Support Eukrea CPUIMX25 Platform"
+        select MXC_ULPI if USB_ULPI
+
+choice
+        prompt "Baseboard"
+        depends on MACH_EUKREA_CPUIMX25
+        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-mx25/Makefile b/arch/arm/mach-mx25/Makefile
index 10cebc5ced8..83ab5d80510 100644
--- a/arch/arm/mach-mx25/Makefile
+++ b/arch/arm/mach-mx25/Makefile
@@ -1,3 +1,5 @@
 obj-y                           := mm.o devices.o
 obj-$(CONFIG_ARCH_MX25)         += clock.o
 obj-$(CONFIG_MACH_MX25_3DS)     += mach-mx25pdk.o
+obj-$(CONFIG_MACH_EUKREA_CPUIMX25)              += mach-cpuimx25.o
+obj-$(CONFIG_MACH_EUKREA_MBIMXSD_BASEBOARD)     += eukrea_mbimxsd-baseboard.o
diff --git a/arch/arm/mach-mx25/eukrea_mbimxsd-baseboard.c b/arch/arm/mach-mx25/eukrea_mbimxsd-baseboard.c
new file mode 100644
index 00000000000..e0f0dfda4d0
--- /dev/null
+++ b/arch/arm/mach-mx25/eukrea_mbimxsd-baseboard.c
@@ -0,0 +1,260 @@
+/*
+ * 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/gpio.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 <mach/board-eukrea_cpuimx25.h>
+#include <mach/hardware.h>
+#include <mach/iomux-mx25.h>
+#include <mach/common.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <mach/mx25.h>
+#include <mach/imx-uart.h>
+#include <mach/imxfb.h>
+#include <mach/ssi.h>
+#include <mach/audmux.h>
+
+#include "devices.h"
+
+static struct pad_desc eukrea_mbimxsd_pads[] = {
+        /* LCD */
+        MX25_PAD_LD0__LD0,
+        MX25_PAD_LD1__LD1,
+        MX25_PAD_LD2__LD2,
+        MX25_PAD_LD3__LD3,
+        MX25_PAD_LD4__LD4,
+        MX25_PAD_LD5__LD5,
+        MX25_PAD_LD6__LD6,
+        MX25_PAD_LD7__LD7,
+        MX25_PAD_LD8__LD8,
+        MX25_PAD_LD9__LD9,
+        MX25_PAD_LD10__LD10,
+        MX25_PAD_LD11__LD11,
+        MX25_PAD_LD12__LD12,
+        MX25_PAD_LD13__LD13,
+        MX25_PAD_LD14__LD14,
+        MX25_PAD_LD15__LD15,
+        MX25_PAD_GPIO_E__LD16,
+        MX25_PAD_GPIO_F__LD17,
+        MX25_PAD_HSYNC__HSYNC,
+        MX25_PAD_VSYNC__VSYNC,
+        MX25_PAD_LSCLK__LSCLK,
+        MX25_PAD_OE_ACD__OE_ACD,
+        MX25_PAD_CONTRAST__CONTRAST,
+        /* LCD_PWR */
+        MX25_PAD_PWM__GPIO_1_26,
+        /* LED */
+        MX25_PAD_POWER_FAIL__GPIO_3_19,
+        /* SWITCH */
+        MX25_PAD_VSTBY_ACK__GPIO_3_18,
+        /* UART2 */
+        MX25_PAD_UART2_RTS__UART2_RTS,
+        MX25_PAD_UART2_CTS__UART2_CTS,
+        MX25_PAD_UART2_TXD__UART2_TXD,
+        MX25_PAD_UART2_RXD__UART2_RXD,
+        /* SD1 */
+        MX25_PAD_SD1_CMD__SD1_CMD,
+        MX25_PAD_SD1_CLK__SD1_CLK,
+        MX25_PAD_SD1_DATA0__SD1_DATA0,
+        MX25_PAD_SD1_DATA1__SD1_DATA1,
+        MX25_PAD_SD1_DATA2__SD1_DATA2,
+        MX25_PAD_SD1_DATA3__SD1_DATA3,
+        /* SD1 CD */
+        MX25_PAD_DE_B__GPIO_2_20,
+        /* I2S */
+        MX25_PAD_KPP_COL3__AUD5_TXFS,
+        MX25_PAD_KPP_COL2__AUD5_TXC,
+        MX25_PAD_KPP_COL1__AUD5_RXD,
+        MX25_PAD_KPP_COL0__AUD5_TXD,
+};
+
+#define GPIO_LED1       83
+#define GPIO_SWITCH1    82
+#define GPIO_SD1CD      52
+#define GPIO_LCDPWR     26
+
+static struct imx_fb_videomode eukrea_mximxsd_modes[] = {
+        {
+                .mode   = {
+                        .name           = "CMO-QVGA",
+                        .refresh        = 60,
+                        .xres           = 320,
+                        .yres           = 240,
+                        .pixclock       = KHZ2PICOS(6500),
+                        .left_margin    = 30,
+                        .right_margin   = 38,
+                        .upper_margin   = 20,
+                        .lower_margin   = 3,
+                        .hsync_len      = 15,
+                        .vsync_len      = 4,
+                },
+                .bpp    = 16,
+                .pcr    = 0xCAD08B80,
+        },
+};
+
+static struct imx_fb_platform_data eukrea_mximxsd_fb_pdata = {
+        .mode           = eukrea_mximxsd_modes,
+        .num_modes      = ARRAY_SIZE(eukrea_mximxsd_modes),
+        .pwmr           = 0x00A903FF,
+        .lscr1          = 0x00120300,
+        .dmacr          = 0x00040060,
+};
+
+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 cpuimx25 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_AUD5*/
+        mxc_audmux_v2_configure_port(0,
+                        MXC_AUDMUX_V2_PTCR_SYN |
+                        MXC_AUDMUX_V2_PTCR_TFSDIR |
+                        MXC_AUDMUX_V2_PTCR_TFSEL(4) |
+                        MXC_AUDMUX_V2_PTCR_TCLKDIR |
+                        MXC_AUDMUX_V2_PTCR_TCSEL(4),
+                        MXC_AUDMUX_V2_PDCR_RXDSEL(4)
+        );
+        mxc_audmux_v2_configure_port(4,
+                        MXC_AUDMUX_V2_PTCR_SYN,
+                        MXC_AUDMUX_V2_PDCR_RXDSEL(0)
+        );
+#endif
+
+        mxc_register_device(&mxc_uart_device1, &uart_pdata);
+        mxc_register_device(&mx25_fb_device, &eukrea_mximxsd_fb_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-mx25/mach-cpuimx25.c b/arch/arm/mach-mx25/mach-cpuimx25.c
new file mode 100644
index 00000000000..4796484830a
--- /dev/null
+++ b/arch/arm/mach-mx25/mach-cpuimx25.c
@@ -0,0 +1,172 @@
+/*
+ * Copyright 2009 Sascha Hauer, <kernel@pengutronix.de>
+ * Copyright 2010 Eric Bénard - Eukréa Electromatique, <eric@eukrea.com>
+ *
+ * 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/delay.h>
+#include <linux/clk.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+#include <linux/fec.h>
+#include <linux/platform_device.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/ulpi.h>
+#include <linux/fsl_devices.h>
+
+#include <mach/board-eukrea_cpuimx25.h>
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+#include <asm/memory.h>
+#include <asm/mach/map.h>
+#include <mach/common.h>
+#include <mach/imx-uart.h>
+#include <mach/i2c.h>
+#include <mach/mx25.h>
+#include <mach/mxc_nand.h>
+#include <mach/imxfb.h>
+#include <mach/mxc_ehci.h>
+#include <mach/ulpi.h>
+
+#include "devices.h"
+#include <mach/iomux-mx25.h>
+
+static struct imxuart_platform_data uart_pdata = {
+        .flags = IMXUART_HAVE_RTSCTS,
+};
+
+static struct pad_desc eukrea_cpuimx25_pads[] = {
+        /* FEC - RMII */
+        MX25_PAD_FEC_MDC__FEC_MDC,
+        MX25_PAD_FEC_MDIO__FEC_MDIO,
+        MX25_PAD_FEC_TDATA0__FEC_TDATA0,
+        MX25_PAD_FEC_TDATA1__FEC_TDATA1,
+        MX25_PAD_FEC_TX_EN__FEC_TX_EN,
+        MX25_PAD_FEC_RDATA0__FEC_RDATA0,
+        MX25_PAD_FEC_RDATA1__FEC_RDATA1,
+        MX25_PAD_FEC_RX_DV__FEC_RX_DV,
+        MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
+        /* I2C1 */
+        MX25_PAD_I2C1_CLK__I2C1_CLK,
+        MX25_PAD_I2C1_DAT__I2C1_DAT,
+};
+
+static struct fec_platform_data mx25_fec_pdata = {
+        .phy    = PHY_INTERFACE_MODE_RMII,
+};
+
+static struct mxc_nand_platform_data eukrea_cpuimx25_nand_board_info = {
+        .width          = 1,
+        .hw_ecc         = 1,
+        .flash_bbt      = 1,
+};
+
+static struct imxi2c_platform_data eukrea_cpuimx25_i2c_1_data = {
+        .bitrate = 100000,
+};
+
+static struct i2c_board_info eukrea_cpuimx25_i2c_devices[] = {
+        {
+                I2C_BOARD_INFO("pcf8563", 0x51),
+        },
+};
+
+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 usbh2_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_cpuimx25_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_cpuimx25_otg_mode);
+
+static void __init eukrea_cpuimx25_init(void)
+{
+        if (mxc_iomux_v3_setup_multiple_pads(eukrea_cpuimx25_pads,
+                        ARRAY_SIZE(eukrea_cpuimx25_pads)))
+                printk(KERN_ERR "error setting cpuimx25 pads !\n");
+
+        mxc_register_device(&mxc_uart_device0, &uart_pdata);
+        mxc_register_device(&mxc_nand_device, &eukrea_cpuimx25_nand_board_info);
+        mxc_register_device(&mx25_rtc_device, NULL);
+        mxc_register_device(&mx25_fec_device, &mx25_fec_pdata);
+
+        i2c_register_board_info(0, eukrea_cpuimx25_i2c_devices,
+                                ARRAY_SIZE(eukrea_cpuimx25_i2c_devices));
+        mxc_register_device(&mxc_i2c_device0, &eukrea_cpuimx25_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, &otg_pdata);
+        }
+        mxc_register_device(&mxc_usbh2, &usbh2_pdata);
+#endif
+        if (!otg_mode_host)
+                mxc_register_device(&otg_udc_device, &otg_device_pdata);
+
+#ifdef CONFIG_MACH_EUKREA_MBIMXSD_BASEBOARD
+        eukrea_mbimxsd_baseboard_init();
+#endif
+}
+
+static void __init eukrea_cpuimx25_timer_init(void)
+{
+        mx25_clocks_init();
+}
+
+static struct sys_timer eukrea_cpuimx25_timer = {
+        .init   = eukrea_cpuimx25_timer_init,
+};
+
+MACHINE_START(EUKREA_CPUIMX25, "Eukrea CPUIMX25")
+        /* Maintainer: Eukrea Electromatique */
+        .phys_io        = MX25_AIPS1_BASE_ADDR,
+        .io_pg_offst    = ((MX25_AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
+        .boot_params    = MX25_PHYS_OFFSET + 0x100,
+        .map_io         = mx25_map_io,
+        .init_irq       = mx25_init_irq,
+        .init_machine   = eukrea_cpuimx25_init,
+        .timer          = &eukrea_cpuimx25_timer,
+MACHINE_END
diff --git a/arch/arm/plat-mxc/include/mach/board-eukrea_cpuimx25.h b/arch/arm/plat-mxc/include/mach/board-eukrea_cpuimx25.h
new file mode 100644
index 00000000000..5c9901e7d8d
--- /dev/null
+++ b/arch/arm/plat-mxc/include/mach/board-eukrea_cpuimx25.h
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2010 Eric Benard - eric@eukrea.com
+ *
+ * Based on board-pcm038.h 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.
+ */
+
+#ifndef __ASM_ARCH_MXC_BOARD_EUKREA_CPUIMX25_H__
+#define __ASM_ARCH_MXC_BOARD_EUKREA_CPUIMX25_H__
+
+#ifndef __ASSEMBLY__
+/*
+ * This CPU module needs a baseboard to work. After basic initializing
+ * its own devices, it calls baseboard's init function.
+ * TODO: Add your own baseboard init function and call it from
+ * inside eukrea_cpuimx25_init().
+ *
+ * This example here is for the development board. Refer
+ * eukrea_mbimx25-baseboard.c
+ */
+
+extern void eukrea_mbimxsd_baseboard_init(void);
+
+#endif
+
+#endif /* __ASM_ARCH_MXC_BOARD_EUKREA_CPUIMX25_H__ */