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authorAndy Green <andy@openmoko.com>2008-11-21 11:56:56 +0000
committerAndy Green <agreen@pads.home.warmcat.com>2008-11-21 11:56:56 +0000
commitb6181861b49f18e69a068d060e0832b3c0062a12 (patch)
treec2fdf7eae7182e738a5da9703c22b07b116d6c60
parentcaec62fed51eb73445fd7965f6bba09086ae52a7 (diff)
add-gta03-framebuffer-init.patch
Signed-off-by: Andy Green <andy@openmoko.com>
-rw-r--r--arch/arm/mach-s3c6410/mach-om-gta03.c78
1 files changed, 76 insertions, 2 deletions
diff --git a/arch/arm/mach-s3c6410/mach-om-gta03.c b/arch/arm/mach-s3c6410/mach-om-gta03.c
index 79f72635c08..a9aca2aab2a 100644
--- a/arch/arm/mach-s3c6410/mach-om-gta03.c
+++ b/arch/arm/mach-s3c6410/mach-om-gta03.c
@@ -1,9 +1,9 @@
-/* linux/arch/arm/mach-s3c6410/mach-smdk6410.c
+/* linux/arch/arm/mach-s3c6410/mach-om_gta03.c
*
* Copyright 2008 Openmoko, Inc.
* Andy Green <andy@openmoko.org>
*
- * based on mach_smdk6410.c which is
+ * based on mach_om_gta03.c which is
*
* Copyright 2008 Openmoko, Inc.
* Copyright 2008 Simtec Electronics
@@ -25,6 +25,11 @@
#include <linux/serial_core.h>
#include <linux/platform_device.h>
#include <linux/io.h>
+#include <linux/i2c.h>
+#include <linux/fb.h>
+#include <linux/delay.h>
+
+#include <video/platform_lcd.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
@@ -32,12 +37,15 @@
#include <mach/hardware.h>
#include <mach/map.h>
+#include <mach/regs-fb.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <plat/regs-serial.h>
#include <plat/iic.h>
+#include <plat/fb.h>
+
#include <plat/s3c6410.h>
#include <plat/clock.h>
@@ -88,6 +96,68 @@ static struct s3c2410_uartcfg om_gta03_uartcfgs[] __initdata = {
},
};
+/* framebuffer and LCD setup. */
+
+/* GPF15 = LCD backlight control
+ * GPF13 => Panel power
+ * GPN5 = LCD nRESET signal
+ * PWM_TOUT1 => backlight brightness
+ */
+
+static void om_gta03_lcd_power_set(struct plat_lcd_data *pd,
+ unsigned int power)
+{
+ if (power) {
+ gpio_direction_output(S3C64XX_GPF(13), 1);
+ gpio_direction_output(S3C64XX_GPF(15), 1);
+
+ /* fire nRESET on power up */
+ gpio_direction_output(S3C64XX_GPN(5), 0);
+ msleep(10);
+ gpio_direction_output(S3C64XX_GPN(5), 1);
+ msleep(1);
+ } else {
+ gpio_direction_output(S3C64XX_GPF(15), 0);
+ gpio_direction_output(S3C64XX_GPF(13), 0);
+ }
+}
+
+static struct plat_lcd_data om_gta03_lcd_power_data = {
+ .set_power = om_gta03_lcd_power_set,
+};
+
+static struct platform_device om_gta03_lcd_powerdev = {
+ .name = "platform-lcd",
+ .dev.parent = &s3c_device_fb.dev,
+ .dev.platform_data = &om_gta03_lcd_power_data,
+};
+
+static struct s3c_fb_pd_win om_gta03_fb_win0 = {
+ /* this is to ensure we use win0 */
+ .win_mode = {
+ .pixclock = 41094,
+ .left_margin = 8,
+ .right_margin = 13,
+ .upper_margin = 7,
+ .lower_margin = 5,
+ .hsync_len = 3,
+ .vsync_len = 1,
+ .xres = 800,
+ .yres = 480,
+ },
+ .max_bpp = 32,
+ .default_bpp = 16,
+};
+
+/* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
+static struct s3c_fb_platdata om_gta03_lcd_pdata __initdata = {
+ .setup_gpio = s3c64xx_fb_gpio_setup_24bpp,
+ .win[0] = &om_gta03_fb_win0,
+ .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
+ .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
+};
+
+
struct map_desc om_gta03_6410_iodesc[] = {};
static struct resource om_gta03_button_resources[] = {
@@ -381,6 +451,8 @@ static struct platform_device *om_gta03_devices[] __initdata = {
&s3c_device_hsmmc0,
&s3c_device_hsmmc1,
&s3c_device_i2c0,
+ &s3c_device_fb,
+ &om_gta03_lcd_powerdev,
&om_gta03_button_dev,
};
@@ -396,6 +468,8 @@ static void __init om_gta03_map_io(void)
static void __init om_gta03_machine_init(void)
{
s3c_i2c0_set_platdata(NULL);
+ s3c_fb_set_platdata(&om_gta03_lcd_pdata);
+
i2c_register_board_info(0, om_gta03_i2c_devs,
ARRAY_SIZE(om_gta03_i2c_devs));