ARM: arch-shmobile: Add IMX074 camera sensor data to the AP4EVB platform

Add platform data, necessary to use Sony IMX074 camera sensor with AP4EVB.
Note: this does not work reliably without an API to reserve contiguous and
coherent memory for V4L DMA buffers. Such memory reservation has to be added as
soon as a suitable API becomes available.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 113 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index 901000ceb540..bb1790784cf7 100644
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -43,6 +43,10 @@
 #include <linux/input/sh_keysc.h>
 #include <linux/usb/r8a66597.h>
 
+#include <media/sh_mobile_ceu.h>
+#include <media/sh_mobile_csi2.h>
+#include <media/soc_camera.h>
+
 #include <sound/sh_fsi.h>
 
 #include <video/sh_mobile_hdmi.h>
@@ -677,6 +681,95 @@ static struct platform_device leds_device = {
         },
 };
 
+static struct i2c_board_info imx074_info = {
+        I2C_BOARD_INFO("imx074", 0x1a),
+};
+
+struct soc_camera_link imx074_link = {
+        .bus_id         = 0,
+        .board_info     = &imx074_info,
+        .i2c_adapter_id = 0,
+        .module_name    = "imx074",
+};
+
+static struct platform_device ap4evb_camera = {
+        .name   = "soc-camera-pdrv",
+        .id     = 0,
+        .dev    = {
+                .platform_data = &imx074_link,
+        },
+};
+
+static struct sh_csi2_client_config csi2_clients[] = {
+        {
+                .phy            = SH_CSI2_PHY_MAIN,
+                .lanes          = 3,
+                .channel        = 0,
+                .pdev           = &ap4evb_camera,
+        },
+};
+
+static struct sh_csi2_pdata csi2_info = {
+        .type           = SH_CSI2C,
+        .clients        = csi2_clients,
+        .num_clients    = ARRAY_SIZE(csi2_clients),
+        .flags          = SH_CSI2_ECC | SH_CSI2_CRC,
+};
+
+static struct resource csi2_resources[] = {
+        [0] = {
+                .name   = "CSI2",
+                .start  = 0xffc90000,
+                .end    = 0xffc90fff,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = intcs_evt2irq(0x17a0),
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device csi2_device = {
+        .name   = "sh-mobile-csi2",
+        .id     = 0,
+        .num_resources  = ARRAY_SIZE(csi2_resources),
+        .resource       = csi2_resources,
+        .dev    = {
+                .platform_data = &csi2_info,
+        },
+};
+
+static struct sh_mobile_ceu_info sh_mobile_ceu_info = {
+        .flags = SH_CEU_FLAG_USE_8BIT_BUS,
+        .csi2_dev = &csi2_device.dev,
+};
+
+static struct resource ceu_resources[] = {
+        [0] = {
+                .name   = "CEU",
+                .start  = 0xfe910000,
+                .end    = 0xfe91009f,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = intcs_evt2irq(0x880),
+                .flags  = IORESOURCE_IRQ,
+        },
+        [2] = {
+                /* place holder for contiguous memory */
+        },
+};
+
+static struct platform_device ceu_device = {
+        .name           = "sh_mobile_ceu",
+        .id             = 0, /* "ceu0" clock */
+        .num_resources  = ARRAY_SIZE(ceu_resources),
+        .resource       = ceu_resources,
+        .dev    = {
+                .platform_data  = &sh_mobile_ceu_info,
+        },
+};
+
 static struct platform_device *ap4evb_devices[] __initdata = {
         &leds_device,
         &nor_flash_device,
@@ -689,6 +782,9 @@ static struct platform_device *ap4evb_devices[] __initdata = {
         &lcdc1_device,
         &lcdc_device,
         &hdmi_device,
+        &csi2_device,
+        &ceu_device,
+        &ap4evb_camera,
 };
 
 static int __init hdmi_init_pm_clock(void)
@@ -1066,6 +1162,23 @@ static void __init ap4evb_init(void)
         i2c_register_board_info(0, &tsc_device, 1);
 #endif /* CONFIG_AP4EVB_QHD */
 
+        /* CEU */
+
+        /*
+         * TODO: reserve memory for V4L2 DMA buffers, when a suitable API
+         * becomes available
+         */
+
+        /* MIPI-CSI stuff */
+        gpio_request(GPIO_FN_VIO_CKO, NULL);
+
+        clk = clk_get(NULL, "vck1_clk");
+        if (!IS_ERR(clk)) {
+                clk_set_rate(clk, clk_round_rate(clk, 13000000));
+                clk_enable(clk);
+                clk_put(clk);
+        }
+
         sh7372_add_standard_devices();
 
         /* HDMI */