1 files changed, 237 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c
new file mode 100644
index 000000000000..b1575b8dc1cd
--- /dev/null
+++ b/arch/arm/mach-pxa/generic.c
@@ -0,0 +1,237 @@
+/*
+ *  linux/arch/arm/mach-pxa/generic.c
+ *
+ *  Author:     Nicolas Pitre
+ *  Created:    Jun 15, 2001
+ *  Copyright:  MontaVista Software Inc.
+ *
+ * Code common to all PXA machines.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Since this file should be linked before any other machine specific file,
+ * the __initcall() here will be executed first.  This serves as default
+ * initialization stuff for PXA machines which can be overridden later if
+ * need be.
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/ioport.h>
+#include <linux/pm.h>
+
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/system.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 "generic.h"
+
+/*
+ * Handy function to set GPIO alternate functions
+ */
+
+void pxa_gpio_mode(int gpio_mode)
+{
+        unsigned long flags;
+        int gpio = gpio_mode & GPIO_MD_MASK_NR;
+        int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8;
+        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
+                GPDR(gpio) &= ~GPIO_bit(gpio);
+        gafr = GAFR(gpio) & ~(0x3 << (((gpio) & 0xf)*2));
+        GAFR(gpio) = gafr |  (fn  << (((gpio) & 0xf)*2));
+        local_irq_restore(flags);
+}
+
+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.
+ *
+ * Note 1: not all PXA2xx variants implement all those addresses.
+ *
+ * Note 2: virtual 0xfffe0000-0xffffffff is reserved for the vector table
+ *         and cache flush area.
+ */
+static struct map_desc standard_io_desc[] __initdata = {
+ /* virtual     physical    length      type */
+  { 0xf2000000, 0x40000000, 0x02000000, 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 */
+};
+
+void __init pxa_map_io(void)
+{
+        iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
+        get_clk_frequency_khz(1);
+}
+
+
+static struct resource pxamci_resources[] = {
+        [0] = {
+                .start  = 0x41100000,
+                .end    = 0x41100fff,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = IRQ_MMC,
+                .end    = IRQ_MMC,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static u64 pxamci_dmamask = 0xffffffffUL;
+
+static struct platform_device pxamci_device = {
+        .name           = "pxa2xx-mci",
+        .id             = -1,
+        .dev            = {
+                .dma_mask = &pxamci_dmamask,
+                .coherent_dma_mask = 0xffffffff,
+        },
+        .num_resources  = ARRAY_SIZE(pxamci_resources),
+        .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;
+
+void __init pxa_set_udc_info(struct pxa2xx_udc_mach_info *info)
+{
+        memcpy(&pxa_udc_info, info, sizeof *info);
+}
+
+static struct resource pxa2xx_udc_resources[] = {
+        [0] = {
+                .start  = 0x40600000,
+                .end    = 0x4060ffff,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = IRQ_USB,
+                .end    = IRQ_USB,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static u64 udc_dma_mask = ~(u32)0;
+
+static struct platform_device udc_device = {
+        .name           = "pxa2xx-udc",
+        .id             = -1,
+        .resource       = pxa2xx_udc_resources,
+        .num_resources  = ARRAY_SIZE(pxa2xx_udc_resources),
+        .dev            =  {
+                .platform_data  = &pxa_udc_info,
+                .dma_mask       = &udc_dma_mask,
+        }
+};
+
+static struct pxafb_mach_info pxa_fb_info;
+
+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));
+}
+
+static struct resource pxafb_resources[] = {
+        [0] = {
+                .start  = 0x44000000,
+                .end    = 0x4400ffff,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = IRQ_LCD,
+                .end    = IRQ_LCD,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static u64 fb_dma_mask = ~(u64)0;
+
+static struct platform_device pxafb_device = {
+        .name           = "pxa2xx-fb",
+        .id             = -1,
+        .dev            = {
+                .platform_data  = &pxa_fb_info,
+                .dma_mask       = &fb_dma_mask,
+                .coherent_dma_mask = 0xffffffff,
+        },
+        .num_resources  = ARRAY_SIZE(pxafb_resources),
+        .resource       = pxafb_resources,
+};
+
+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 *devices[] __initdata = {
+        &pxamci_device,
+        &udc_device,
+        &pxafb_device,
+        &ffuart_device,
+        &btuart_device,
+        &stuart_device,
+};
+
+static int __init pxa_init(void)
+{
+        return platform_add_devices(devices, ARRAY_SIZE(devices));
+}
+
+subsys_initcall(pxa_init);