linux 2.6.21: add gumstix support

1 files changed, 183 insertions, 0 deletions

diff --git a/packages/linux/linux-2.6.21/pxafb-definition.patch b/packages/linux/linux-2.6.21/pxafb-definition.patch
new file mode 100644
index 0000000000..100fccb65b
--- /dev/null
+++ b/packages/linux/linux-2.6.21/pxafb-definition.patch
@@ -0,0 +1,183 @@
+Index: linux-2.6.21gum/arch/arm/mach-pxa/gumstix.c
+===================================================================
+--- linux-2.6.21gum.orig/arch/arm/mach-pxa/gumstix.c
++++ linux-2.6.21gum/arch/arm/mach-pxa/gumstix.c
+@@ -25,6 +25,7 @@
+ #include <asm/arch/udc.h>
+ #include <asm/arch/mmc.h>
+ #include <asm/arch/pxa-regs.h>
++#include <asm/arch/pxafb.h>
+ #include <asm/arch/gumstix.h>
+ 
+ #include "generic.h"
+@@ -86,6 +87,95 @@ static struct platform_device gum_audio_
+ 	.id		= -1,
+ };
+ 
++#ifdef CONFIG_FB_PXA_ALPS_CDOLLAR
++static struct pxafb_mode_info gumstix_fb_mode = {
++	.pixclock	= 300000,
++	.xres		= 240,
++	.yres		= 320,
++	.bpp		= 16,
++	.hsync_len	= 2,
++	.left_margin	= 1,
++	.right_margin	= 1,
++	.vsync_len	= 3,
++	.upper_margin	= 0,
++	.lower_margin	= 0,
++	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
++};
++
++static struct pxafb_mach_info gumstix_fb_info = {
++	.modes		= &gumstix_fb_mode,
++	.num_modes	= 1,
++	.lccr0		= LCCR0_Pas | LCCR0_Sngl | LCCR0_Color,
++	.lccr3		= 0,
++};
++#elif defined(CONFIG_FB_PXA_SHARP_LQ043_PSP)
++static struct pxafb_mode_info gumstix_fb_mode = {
++	.pixclock	= 110000,
++	.xres		= 480,
++	.yres		= 272,
++	.bpp		= 16,
++	.hsync_len	= 41,
++	.left_margin	= 2,
++	.right_margin	= 2,
++	.vsync_len	= 10,
++	.upper_margin	= 2,
++	.lower_margin	= 2,
++	.sync		= 0, // Hsync and Vsync both active low
++};
++
++static void gumstix_lcd_backlight(int on_or_off)
++{
++	pxa_gpio_mode(17 | GPIO_OUT);
++	if(on_or_off)
++	{
++		GPSR(17) = GPIO_bit(17);
++	} else {
++		GPCR(17) = GPIO_bit(17);
++	}
++}
++
++static struct pxafb_mach_info gumstix_fb_info = {
++	.modes			= &gumstix_fb_mode,
++	.num_modes		= 1,
++	.lccr0			= LCCR0_Act | LCCR0_Sngl | LCCR0_Color,
++	.lccr3			= LCCR3_OutEnH | LCCR3_PixFlEdg | (3 << 30),
++	.pxafb_backlight_power	= &gumstix_lcd_backlight,
++};
++#elif defined(CONFIG_FB_PXA_SAMSUNG_LTE430WQ_F0C)
++static struct pxafb_mode_info gumstix_fb_mode = {
++	.pixclock	= 108696, // 9.2MHz typical DOTCLK from datasheet
++	.xres		= 480,
++	.hsync_len	= 41, // HLW from datasheet: 41 typ
++	.left_margin	= 4, // HBP - HLW from datasheet: 45 - 41 = 4
++	.right_margin	= 8, // HFP from datasheet: 8 typ
++	.yres		= 272,
++	.vsync_len	= 10, // VLW from datasheet: 10 typ
++	.upper_margin	= 2, // VBP - VLW from datasheet: 12 - 10 = 2
++	.lower_margin	= 4, // VFP from datasheet: 4 typ
++	.bpp		= 16,
++	.sync		= 0, // Hsync and Vsync both active low
++};
++
++static void gumstix_lcd_backlight(int on_or_off)
++{
++	pxa_gpio_mode(17 | GPIO_OUT);
++	if(on_or_off)
++	{
++		GPSR(17) = GPIO_bit(17);
++	} else {
++		GPCR(17) = GPIO_bit(17);
++	}
++}
++
++static struct pxafb_mach_info gumstix_fb_info = {
++	.modes			= &gumstix_fb_mode,
++	.num_modes		= 1,
++	.lccr0			= LCCR0_Act | LCCR0_Sngl | LCCR0_Color,
++	.lccr3			= LCCR3_OutEnH | LCCR3_PixFlEdg | (3 << 30),
++	.pxafb_backlight_power	= &gumstix_lcd_backlight,
++};
++#endif
++
+ static struct platform_device *devices[] __initdata = {
+ 	&gum_audio_device,
+ };
+@@ -94,6 +184,9 @@ static void __init gumstix_init(void)
+ {
+ 	pxa_set_mci_info(&gumstix_mci_platform_data);
+ 	pxa_set_udc_info(&gumstix_udc_info);
++#if defined(CONFIG_FB_PXA_ALPS_CDOLLAR) | defined(CONFIG_FB_PXA_SHARP_LQ043_PSP) | defined(CONFIG_FB_PXA_SAMSUNG_LTE430WQ_F0C)
++	set_pxa_fb_info(&gumstix_fb_info);
++#endif
+ 	(void) platform_add_devices(devices, ARRAY_SIZE(devices));
+ }
+ 
+Index: linux-2.6.21gum/drivers/video/Kconfig
+===================================================================
+--- linux-2.6.21gum.orig/drivers/video/Kconfig
++++ linux-2.6.21gum/drivers/video/Kconfig
+@@ -1495,6 +1495,34 @@ config FB_PXA
+ 
+ 	  If unsure, say N.
+ 
++choice
++	depends on FB_PXA
++	prompt "LCD Panel"
++	default FB_PXA_SAMSUNG_LTE430WQ_F0C
++
++config FB_PXA_ALPS_CDOLLAR
++	boolean "Chris Dollar's ALPS screen"
++	---help---
++	  Enable definitions (over-ridable on the kernel command line if
++	  "PXA LCD command line parameters" is also selected) for an ALPS
++	  screen which Chris Dollar uses
++
++config FB_PXA_SHARP_LQ043_PSP
++	boolean "SHARP LQ043... series"
++	---help---
++	  Enable definitions (over-ridable on the kernel command line if
++	  "PXA LCD command line parameters" is also selected) for a SHARP
++	  LQ043... screen, such as the one used by the PSP.  These screens are
++	  the ones normally sold by gumstix with its boards.
++
++config FB_PXA_SAMSUNG_LTE430WQ_F0C
++	boolean "Samsung LTE430WQ-F0C (standard gumstix LCD)"
++	---help---
++	  Enable definitions for a Samsung LTE430WQ-F0C LCD panel, such as the ones resold
++	  by gumstix for use with their "LCD-Ready" boards.
++
++endchoice
++
+ config FB_PXA_PARAMETERS
+ 	bool "PXA LCD command line parameters"
+ 	default n
+Index: linux-2.6.21gum/drivers/video/pxafb.c
+===================================================================
+--- linux-2.6.21gum.orig/drivers/video/pxafb.c
++++ linux-2.6.21gum/drivers/video/pxafb.c
+@@ -22,6 +22,7 @@
+  *
+  */
+ 
++#include <linux/autoconf.h>
+ #include <linux/module.h>
+ #include <linux/moduleparam.h>
+ #include <linux/kernel.h>
+@@ -789,7 +790,13 @@ static void pxafb_setup_gpio(struct pxaf
+ 	pxa_gpio_mode(GPIO74_LCD_FCLK_MD);
+ 	pxa_gpio_mode(GPIO75_LCD_LCLK_MD);
+ 	pxa_gpio_mode(GPIO76_LCD_PCLK_MD);
++#ifdef CONFIG_FB_PXA_SHARP_LQ043_PSP
++	/* DISP must be always high while screen is on */
++	pxa_gpio_mode(GPIO77_LCD_ACBIAS | GPIO_OUT);
++	GPSR(GPIO77_LCD_ACBIAS) = GPIO_bit(GPIO77_LCD_ACBIAS);
++#else
+ 	pxa_gpio_mode(GPIO77_LCD_ACBIAS_MD);
++#endif
+ }
+ 
+ static void pxafb_enable_controller(struct pxafb_info *fbi)