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>

1 files changed, 260 insertions, 0 deletions

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));
+}