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Index: linux-2.6.17/arch/arm/mach-pxa/cm-x270.c
===================================================================
--- linux-2.6.17.orig/arch/arm/mach-pxa/cm-x270.c 2006-07-18 15:40:10.000000000 +0100
+++ linux-2.6.17/arch/arm/mach-pxa/cm-x270.c 2006-07-20 20:25:22.000000000 +0100
@@ -11,6 +11,7 @@
#include <linux/pm.h>
#include <linux/fb.h>
#include <linux/rtc-v3020.h>
+#include <linux/mbxfb.h>
#include <asm/types.h>
#include <asm/setup.h>
@@ -396,10 +397,113 @@
.resource = dm9000_resources,
};
+/* 2700G graphics */
+static u64 fb_dma_mask = ~(u64)0;
+
+static struct resource cmx270_2700G_resource[] = {
+ /* frame buffer memory including ODFB and External SDRAM */
+ [0] = {
+ .start = MARATHON_PHYS,
+ .end = MARATHON_PHYS + 0x02000000,
+ .flags = IORESOURCE_MEM,
+ },
+ /* Marathon registers */
+ [1] = {
+ .start = MARATHON_PHYS + 0x03fe0000,
+ .end = MARATHON_PHYS + 0x03ffffff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static unsigned long save_lcd_regs[10];
+
+/* if 2700G is used, disable PCI throttle */
+#define LB_TROTTLE_OFF (PXA_CS1_PHYS | (1 << 25))
+#define LB_TROTTLE_MAX (PXA_CS1_PHYS | (1 << 25) | (1 << 22))
+static int cmx270_marathon_probe(struct fb_info *fb)
+{
+ volatile unsigned long *cpld;
+
+ cpld = (volatile unsigned long*)ioremap(LB_TROTTLE_OFF, 4);
+ if ( !cpld ) {
+ return -ENODEV;
+ }
+ *cpld = 0;
+ iounmap((void*)cpld);
+
+ /* save PXA-270 pin settings before enabling 2700G */
+ save_lcd_regs[0] = GPDR1;
+ save_lcd_regs[1] = GPDR2;
+ save_lcd_regs[2] = GAFR1_U;
+ save_lcd_regs[3] = GAFR2_L;
+ save_lcd_regs[4] = GAFR2_U;
+
+ /* Disable PXA-270 on-chip controller driving pins */
+ GPDR1 &= ~(0xfc000000);
+ GPDR2 &= ~(0x00c03fff);
+ GAFR1_U &= ~(0xfff00000);
+ GAFR2_L &= ~(0x0fffffff);
+ GAFR2_U &= ~(0x0000f000);
+ return 0;
+}
+
+static int cmx270_marathon_remove(struct fb_info *fb)
+{
+ volatile unsigned long *cpld;
+ cpld = (volatile unsigned long*)ioremap(LB_TROTTLE_MAX, 4);
+
+ if ( !cpld ) {
+ return -ENODEV;
+ }
+ *cpld = 0;
+ iounmap((void*)cpld);
+
+ GPDR1 = save_lcd_regs[0];
+ GPDR2 = save_lcd_regs[1];
+ GAFR1_U = save_lcd_regs[2];
+ GAFR2_L = save_lcd_regs[3];
+ GAFR2_U = save_lcd_regs[4];
+ return 0;
+}
+
+static struct mbxfb_platform_data cmx270_2700G_data = {
+ .xres = {
+ .min = 240,
+ .max = 1200,
+ .defval = 640,
+ },
+ .yres = {
+ .min = 240,
+ .max = 1200,
+ .defval = 480,
+ },
+ .bpp = {
+ .min = 16,
+ .max = 32,
+ .defval = 16,
+ },
+ .memsize = 8*1024*1024,
+ .probe = cmx270_marathon_probe,
+ .remove = cmx270_marathon_remove,
+};
+
+static struct platform_device cmx270_2700G = {
+ .name = "mbx-fb",
+ .dev = {
+ .platform_data = &cmx270_2700G_data,
+ .dma_mask = &fb_dma_mask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .num_resources = ARRAY_SIZE(cmx270_2700G_resource),
+ .resource = cmx270_2700G_resource,
+ .id = -1,
+};
+
static struct platform_device *platform_devices[] __initdata = {\
&cmx270_audio_device,
&v3020_rtc_device,
&dm9000_device,
+ &cmx270_2700G,
};
static int cmx270_ohci_init(struct device *dev)
|
