Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff
[linux-2.6.git] / arch / arm / mach-pxa / generic.c
index 24f3da2..5efa847 100644 (file)
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/ioport.h>
 #include <linux/pm.h>
+#include <linux/string.h>
 
 #include <asm/hardware.h>
 #include <asm/irq.h>
 #include <asm/pgtable.h>
 #include <asm/mach/map.h>
 
+#include <asm/arch/pxa-regs.h>
 #include <asm/arch/udc.h>
 #include <asm/arch/pxafb.h>
+#include <asm/arch/mmc.h>
+#include <asm/arch/irda.h>
+#include <asm/arch/i2c.h>
 
 #include "generic.h"
 
@@ -47,6 +52,10 @@ void pxa_gpio_mode(int gpio_mode)
        int gafr;
 
        local_irq_save(flags);
+       if (gpio_mode & GPIO_DFLT_LOW)
+               GPCR(gpio) = GPIO_bit(gpio);
+       else if (gpio_mode & GPIO_DFLT_HIGH)
+               GPSR(gpio) = GPIO_bit(gpio);
        if (gpio_mode & GPIO_MD_MASK_DIR)
                GPDR(gpio) |= GPIO_bit(gpio);
        else
@@ -58,6 +67,24 @@ void pxa_gpio_mode(int gpio_mode)
 
 EXPORT_SYMBOL(pxa_gpio_mode);
 
+/*
+ * Routine to safely enable or disable a clock in the CKEN
+ */
+void pxa_set_cken(int clock, int enable)
+{
+       unsigned long flags;
+       local_irq_save(flags);
+
+       if (enable)
+               CKEN |= clock;
+       else
+               CKEN &= ~clock;
+
+       local_irq_restore(flags);
+}
+
+EXPORT_SYMBOL(pxa_set_cken);
+
 /*
  * Intel PXA2xx internal register mapping.
  *
@@ -67,14 +94,42 @@ EXPORT_SYMBOL(pxa_gpio_mode);
  *         and cache flush area.
  */
 static struct map_desc standard_io_desc[] __initdata = {
- /* virtual     physical    length      type */
-  { 0xf2000000, 0x40000000, 0x01800000, MT_DEVICE }, /* Devs */
-  { 0xf4000000, 0x44000000, 0x00100000, MT_DEVICE }, /* LCD */
-  { 0xf6000000, 0x48000000, 0x00100000, MT_DEVICE }, /* Mem Ctl */
-  { 0xf8000000, 0x4c000000, 0x00100000, MT_DEVICE }, /* USB host */
-  { 0xfa000000, 0x50000000, 0x00100000, MT_DEVICE }, /* Camera */
-  { 0xfe000000, 0x58000000, 0x00100000, MT_DEVICE }, /* IMem ctl */
-  { 0xff000000, 0x00000000, 0x00100000, MT_DEVICE }  /* UNCACHED_PHYS_0 */
+       {       /* Devs */
+               .virtual        =  0xf2000000,
+               .pfn            = __phys_to_pfn(0x40000000),
+               .length         = 0x02000000,
+               .type           = MT_DEVICE
+       }, {    /* LCD */
+               .virtual        =  0xf4000000,
+               .pfn            = __phys_to_pfn(0x44000000),
+               .length         = 0x00100000,
+               .type           = MT_DEVICE
+       }, {    /* Mem Ctl */
+               .virtual        =  0xf6000000,
+               .pfn            = __phys_to_pfn(0x48000000),
+               .length         = 0x00100000,
+               .type           = MT_DEVICE
+       }, {    /* USB host */
+               .virtual        =  0xf8000000,
+               .pfn            = __phys_to_pfn(0x4c000000),
+               .length         = 0x00100000,
+               .type           = MT_DEVICE
+       }, {    /* Camera */
+               .virtual        =  0xfa000000,
+               .pfn            = __phys_to_pfn(0x50000000),
+               .length         = 0x00100000,
+               .type           = MT_DEVICE
+       }, {    /* IMem ctl */
+               .virtual        =  0xfe000000,
+               .pfn            = __phys_to_pfn(0x58000000),
+               .length         = 0x00100000,
+               .type           = MT_DEVICE
+       }, {    /* UNCACHED_PHYS_0 */
+               .virtual        = 0xff000000,
+               .pfn            = __phys_to_pfn(0x00000000),
+               .length         = 0x00100000,
+               .type           = MT_DEVICE
+       }
 };
 
 void __init pxa_map_io(void)
@@ -100,8 +155,8 @@ static struct resource pxamci_resources[] = {
 static u64 pxamci_dmamask = 0xffffffffUL;
 
 static struct platform_device pxamci_device = {
-       .name           = "pxamci",
-       .id             = 0,
+       .name           = "pxa2xx-mci",
+       .id             = -1,
        .dev            = {
                .dma_mask = &pxamci_dmamask,
                .coherent_dma_mask = 0xffffffff,
@@ -110,6 +165,11 @@ static struct platform_device pxamci_device = {
        .resource       = pxamci_resources,
 };
 
+void __init pxa_set_mci_info(struct pxamci_platform_data *info)
+{
+       pxamci_device.dev.platform_data = info;
+}
+
 
 static struct pxa2xx_udc_mach_info pxa_udc_info;
 
@@ -117,7 +177,6 @@ void __init pxa_set_udc_info(struct pxa2xx_udc_mach_info *info)
 {
        memcpy(&pxa_udc_info, info, sizeof *info);
 }
-EXPORT_SYMBOL(pxa_set_udc_info);
 
 static struct resource pxa2xx_udc_resources[] = {
        [0] = {
@@ -135,8 +194,8 @@ static struct resource pxa2xx_udc_resources[] = {
 static u64 udc_dma_mask = ~(u32)0;
 
 static struct platform_device udc_device = {
-       .name           = "pxa2xx_udc",
-       .id             = 0,
+       .name           = "pxa2xx-udc",
+       .id             = -1,
        .resource       = pxa2xx_udc_resources,
        .num_resources  = ARRAY_SIZE(pxa2xx_udc_resources),
        .dev            =  {
@@ -151,7 +210,6 @@ void __init set_pxa_fb_info(struct pxafb_mach_info *hard_pxa_fb_info)
 {
        memcpy(&pxa_fb_info,hard_pxa_fb_info,sizeof(struct pxafb_mach_info));
 }
-EXPORT_SYMBOL(set_pxa_fb_info);
 
 static struct resource pxafb_resources[] = {
        [0] = {
@@ -169,8 +227,8 @@ static struct resource pxafb_resources[] = {
 static u64 fb_dma_mask = ~(u64)0;
 
 static struct platform_device pxafb_device = {
-       .name           = "pxafb",
-       .id             = 0,
+       .name           = "pxa2xx-fb",
+       .id             = -1,
        .dev            = {
                .platform_data  = &pxa_fb_info,
                .dma_mask       = &fb_dma_mask,
@@ -180,15 +238,120 @@ static struct platform_device pxafb_device = {
        .resource       = pxafb_resources,
 };
 
+void __init set_pxa_fb_parent(struct device *parent_dev)
+{
+       pxafb_device.dev.parent = parent_dev;
+}
+
+static struct platform_device ffuart_device = {
+       .name           = "pxa2xx-uart",
+       .id             = 0,
+};
+static struct platform_device btuart_device = {
+       .name           = "pxa2xx-uart",
+       .id             = 1,
+};
+static struct platform_device stuart_device = {
+       .name           = "pxa2xx-uart",
+       .id             = 2,
+};
+static struct platform_device hwuart_device = {
+       .name           = "pxa2xx-uart",
+       .id             = 3,
+};
+
+static struct resource i2c_resources[] = {
+       {
+               .start  = 0x40301680,
+               .end    = 0x403016a3,
+               .flags  = IORESOURCE_MEM,
+       }, {
+               .start  = IRQ_I2C,
+               .end    = IRQ_I2C,
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static struct platform_device i2c_device = {
+       .name           = "pxa2xx-i2c",
+       .id             = 0,
+       .resource       = i2c_resources,
+       .num_resources  = ARRAY_SIZE(i2c_resources),
+};
+
+void __init pxa_set_i2c_info(struct i2c_pxa_platform_data *info)
+{
+       i2c_device.dev.platform_data = info;
+}
+
+static struct resource i2s_resources[] = {
+       {
+               .start  = 0x40400000,
+               .end    = 0x40400083,
+               .flags  = IORESOURCE_MEM,
+       }, {
+               .start  = IRQ_I2S,
+               .end    = IRQ_I2S,
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static struct platform_device i2s_device = {
+       .name           = "pxa2xx-i2s",
+       .id             = -1,
+       .resource       = i2s_resources,
+       .num_resources  = ARRAY_SIZE(i2s_resources),
+};
+
+static u64 pxaficp_dmamask = ~(u32)0;
+
+static struct platform_device pxaficp_device = {
+       .name           = "pxa2xx-ir",
+       .id             = -1,
+       .dev            = {
+               .dma_mask = &pxaficp_dmamask,
+               .coherent_dma_mask = 0xffffffff,
+       },
+};
+
+void __init pxa_set_ficp_info(struct pxaficp_platform_data *info)
+{
+       pxaficp_device.dev.platform_data = info;
+}
+
+static struct platform_device pxartc_device = {
+       .name           = "sa1100-rtc",
+       .id             = -1,
+};
+
 static struct platform_device *devices[] __initdata = {
        &pxamci_device,
        &udc_device,
        &pxafb_device,
+       &ffuart_device,
+       &btuart_device,
+       &stuart_device,
+       &pxaficp_device,
+       &i2c_device,
+       &i2s_device,
+       &pxartc_device,
 };
 
 static int __init pxa_init(void)
 {
-       return platform_add_devices(devices, ARRAY_SIZE(devices));
+       int cpuid, ret;
+
+       ret = platform_add_devices(devices, ARRAY_SIZE(devices));
+       if (ret)
+               return ret;
+
+       /* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */
+       cpuid = read_cpuid(CPUID_ID);
+       if (((cpuid >> 4) & 0xfff) == 0x2d0 ||
+           ((cpuid >> 4) & 0xfff) == 0x290)
+               ret = platform_device_register(&hwuart_device);
+
+       return ret;
 }
 
 subsys_initcall(pxa_init);