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Subject[PATCH 4/4 v5] i.MX31: platform bindings and initialisation for IPU and framebuffer drivers
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>

This patch includes platform device data for IPU and framebuffer devices
and pin initialisation for the pcm037 platform.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
---
arch/arm/mach-mx3/devices.c | 89 +++++++++++++++++++++++++++++++++++++++++++
arch/arm/mach-mx3/pcm037.c | 75 +++++++++++++++++++++++++++++++++++-
2 files changed, 163 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-mx3/devices.c b/arch/arm/mach-mx3/devices.c
index a6bdcc0..5bc4ec1 100644
--- a/arch/arm/mach-mx3/devices.c
+++ b/arch/arm/mach-mx3/devices.c
@@ -21,8 +21,11 @@
#include <linux/platform_device.h>
#include <linux/serial.h>
#include <linux/gpio.h>
+
#include <mach/hardware.h>
#include <mach/imx-uart.h>
+#include <mach/ipu.h>
+#include <mach/mx3fb.h>

static struct resource uart0[] = {
{
@@ -145,3 +148,89 @@ int __init mxc_register_gpios(void)
{
return mxc_gpio_init(imx_gpio_ports, ARRAY_SIZE(imx_gpio_ports));
}
+
+/* i.MX31 Image Processing Unit */
+
+/* The resource order is important! */
+static struct resource mx3_ipu_rsrc[] = {
+ {
+ .start = IPU_CTRL_BASE_ADDR,
+ .end = IPU_CTRL_BASE_ADDR + 0x5F,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = IPU_CTRL_BASE_ADDR + 0x88,
+ .end = IPU_CTRL_BASE_ADDR + 0xB3,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = MXC_INT_IPU_SYN,
+ .end = MXC_INT_IPU_SYN,
+ .flags = IORESOURCE_IRQ,
+ }, {
+ .start = MXC_INT_IPU_ERR,
+ .end = MXC_INT_IPU_ERR,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct ipu_platform_data mx3_ipu_data = {
+ .irq_base = MXC_MAX_INT_LINES + MXC_MAX_GPIO_LINES,
+};
+
+static struct platform_device mx3_ipu = {
+ .name = "ipu-core",
+ .id = -1,
+ .resource = mx3_ipu_rsrc,
+ .num_resources = ARRAY_SIZE(mx3_ipu_rsrc),
+ .dev = {
+ .platform_data = &mx3_ipu_data,
+ },
+};
+
+static bool ipu_registered = false;
+
+static struct resource fb_resources[] = {
+ {
+ .start = IPU_CTRL_BASE_ADDR + 0xB4,
+ .end = IPU_CTRL_BASE_ADDR + 0x1BF,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = IPU_IRQ_SDC_BG_EOF,
+ .end = IPU_IRQ_SDC_BG_EOF,
+ .flags = IORESOURCE_IRQ,
+ }, {
+ .start = IPU_IRQ_SDC_FG_EOF,
+ .end = IPU_IRQ_SDC_FG_EOF,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct mx3fb_platform_data mx3fb_data = {
+ .dma_dev = &mx3_ipu.dev,
+};
+
+static struct platform_device mx3_fb = {
+ .name = "mx3_sdc_fb",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(fb_resources),
+ .resource = fb_resources,
+ .dev = {
+ .platform_data = &mx3fb_data,
+ .coherent_dma_mask = 0xffffffff,
+ },
+};
+
+int __init mx3_register_fb(const char *name, const struct fb_videomode *modes,
+ int num_modes)
+{
+ if (!ipu_registered) {
+ int ret = platform_device_register(&mx3_ipu);
+ if (ret < 0)
+ return ret;
+ ipu_registered = true;
+ }
+
+ mx3fb_data.name = name;
+ mx3fb_data.mode = modes;
+ mx3fb_data.num_modes = num_modes;
+ return platform_device_register(&mx3_fb);
+}
diff --git a/arch/arm/mach-mx3/pcm037.c b/arch/arm/mach-mx3/pcm037.c
index 4ebfceb..07ff9f7 100644
--- a/arch/arm/mach-mx3/pcm037.c
+++ b/arch/arm/mach-mx3/pcm037.c
@@ -26,15 +26,17 @@
#include <linux/gpio.h>
#include <linux/smc911x.h>

-#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
+
+#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
#include <mach/board-pcm037.h>
+#include <mach/mx3fb.h>

#include "devices.h"

@@ -95,6 +97,47 @@ static struct platform_device *devices[] __initdata = {
&pcm037_eth,
};

+static const struct fb_videomode fb_modedb[] = {
+ {
+ /* 320x240 @ 60 Hz */
+ .name = "CMEL-OLED QVGA",
+ .refresh = 60,
+ .xres = 240,
+ .yres = 320,
+ .pixclock = /*217014*//*868056*/185925,
+ .left_margin = 9,
+ .right_margin = 16,
+ .upper_margin = 7,
+ .lower_margin = 9,
+ .hsync_len = 1,
+ .vsync_len = 1,
+ .sync = /*FB_SYNC_HOR_HIGH_ACT | */
+ /*FB_SYNC_OE_ACT_HIGH | S6E63D6 datasheet p.92 - active low. */
+ /*FB_SYNC_VERT_HIGH_ACT |*/
+ FB_SYNC_CLK_INVERT |
+ FB_SYNC_CLK_IDLE_EN | FB_SYNC_CLK_SEL_EN,
+ .vmode = FB_VMODE_NONINTERLACED,
+ .flag = 0,
+ }, {
+ /* 240x320 @ 60 Hz */
+ .name = "Sharp-LQ035Q7DH06-QVGA",
+ .refresh = 60,
+ .xres = 240,
+ .yres = 320,
+ .pixclock = 185925,
+ .left_margin = 9,
+ .right_margin = 16,
+ .upper_margin = 7,
+ .lower_margin = 9,
+ .hsync_len = 1,
+ .vsync_len = 1,
+ .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_SHARP_MODE |
+ FB_SYNC_CLK_INVERT | FB_SYNC_CLK_IDLE_EN,
+ .vmode = FB_VMODE_NONINTERLACED,
+ .flag = 0,
+ },
+};
+
/*
* Board specific initialization.
*/
@@ -118,6 +161,36 @@ static void __init mxc_board_init(void)
mxc_iomux_mode(IOMUX_MODE(MX31_PIN_GPIO3_1, IOMUX_CONFIG_GPIO));
if (!gpio_request(MX31_PIN_GPIO3_1, "pcm037-eth"))
gpio_direction_input(MX31_PIN_GPIO3_1);
+
+ /* Display Interface #3 */
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD0, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD1, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD2, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD3, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD4, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD5, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD6, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD7, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD8, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD9, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD10, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD11, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD12, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD13, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD14, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD15, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD16, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_LD17, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_VSYNC3, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_HSYNC, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_FPSHIFT, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_DRDY0, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_D3_REV, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_CONTRAST, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_D3_SPL, IOMUX_CONFIG_FUNC));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_D3_CLS, IOMUX_CONFIG_FUNC));
+
+ mx3_register_fb(fb_modedb[1].name, fb_modedb, ARRAY_SIZE(fb_modedb));
}

/*
--
1.5.4

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