ARM: Add common platform devices for TCC8xxx SoCs

This patch introduces a first set of platform devices for integrated
peripherals of TCC8xxx processors. Drivers for these devices are
available and will be posted in a second step.

Signed-off-by: "Hans J. Koch" <hjk@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

3 files changed, 244 insertions, 1 deletions

diff --git a/arch/arm/mach-tcc8k/Makefile b/arch/arm/mach-tcc8k/Makefile
index 446c4c9f0708..e92c0d255ae7 100644
--- a/arch/arm/mach-tcc8k/Makefile
+++ b/arch/arm/mach-tcc8k/Makefile
@@ -3,4 +3,4 @@
 #
 
 # Common support
-obj-y += clock.o irq.o time.o io.o
+obj-y += clock.o irq.o time.o io.o devices.o
diff --git a/arch/arm/mach-tcc8k/common.h b/arch/arm/mach-tcc8k/common.h
index 365f18adf30c..705690add395 100644
--- a/arch/arm/mach-tcc8k/common.h
+++ b/arch/arm/mach-tcc8k/common.h
@@ -1,6 +1,10 @@
 #ifndef MACH_TCC8K_COMMON_H
 #define MACH_TCC8K_COMMON_H
 
+#include <linux/platform_device.h>
+
+extern struct platform_device tcc_nand_device;
+
 struct clk;
 
 extern void tcc_clocks_init(unsigned long xi_freq, unsigned long xti_freq);
diff --git a/arch/arm/mach-tcc8k/devices.c b/arch/arm/mach-tcc8k/devices.c
new file mode 100644
index 000000000000..6722ad7c2836
--- /dev/null
+++ b/arch/arm/mach-tcc8k/devices.c
@@ -0,0 +1,239 @@
+/*
+ * linux/arch/arm/mach-tcc8k/devices.c
+ *
+ * Copyright (C) Telechips, Inc.
+ * Copyright (C) 2009 Hans J. Koch <hjk@linutronix.de>
+ *
+ * Licensed under the terms of GPL v2.
+ *
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <asm/mach/map.h>
+
+#include <mach/tcc8k-regs.h>
+#include <mach/irqs.h>
+
+#include "common.h"
+
+static u64 tcc8k_dmamask = DMA_BIT_MASK(32);
+
+#ifdef CONFIG_MTD_NAND_TCC
+/* NAND controller */
+static struct resource tcc_nand_resources[] = {
+        {
+                .start  = (resource_size_t)NFC_BASE,
+                .end    = (resource_size_t)NFC_BASE + 0x7f,
+                .flags  = IORESOURCE_MEM,
+        }, {
+                .start  = INT_NFC,
+                .end    = INT_NFC,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+struct platform_device tcc_nand_device = {
+        .name = "tcc_nand",
+        .id = 0,
+        .num_resources = ARRAY_SIZE(tcc_nand_resources),
+        .resource = tcc_nand_resources,
+};
+#endif
+
+#ifdef CONFIG_MMC_TCC8K
+/* MMC controller */
+static struct resource tcc8k_mmc0_resource[] = {
+        {
+                .start = INT_SD0,
+                .end   = INT_SD0,
+                .flags = IORESOURCE_IRQ,
+        },
+};
+
+static struct resource tcc8k_mmc1_resource[] = {
+        {
+                .start = INT_SD1,
+                .end   = INT_SD1,
+                .flags = IORESOURCE_IRQ,
+        },
+};
+
+struct platform_device tcc8k_mmc0_device = {
+        .name           = "tcc-mmc",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(tcc8k_mmc0_resource),
+        .resource       = tcc8k_mmc0_resource,
+        .dev            = {
+                .dma_mask               = &tcc8k_dmamask,
+                .coherent_dma_mask      = DMA_BIT_MASK(32),
+        }
+};
+
+struct platform_device tcc8k_mmc1_device = {
+        .name           = "tcc-mmc",
+        .id             = 1,
+        .num_resources  = ARRAY_SIZE(tcc8k_mmc1_resource),
+        .resource       = tcc8k_mmc1_resource,
+        .dev            = {
+                .dma_mask               = &tcc8k_dmamask,
+                .coherent_dma_mask      = DMA_BIT_MASK(32),
+        }
+};
+
+static inline void tcc8k_init_mmc(void)
+{
+        u32 reg = __raw_readl(GPIOPS_BASE + GPIOPS_FS1_OFFS);
+
+        reg |= GPIOPS_FS1_SDH0_BITS | GPIOPS_FS1_SDH1_BITS;
+        __raw_writel(reg, GPIOPS_BASE + GPIOPS_FS1_OFFS);
+
+        platform_device_register(&tcc8k_mmc0_device);
+        platform_device_register(&tcc8k_mmc1_device);
+}
+#else
+static inline void tcc8k_init_mmc(void) { }
+#endif
+
+#ifdef CONFIG_USB_OHCI_HCD
+static int tcc8k_ohci_init(struct device *dev)
+{
+        u32 reg;
+
+        /* Use GPIO PK19 as VBUS control output */
+        reg = __raw_readl(GPIOPK_BASE + GPIOPK_FS0_OFFS);
+        reg &= ~(1 << 19);
+        __raw_writel(reg, GPIOPK_BASE + GPIOPK_FS0_OFFS);
+        reg = __raw_readl(GPIOPK_BASE + GPIOPK_FS1_OFFS);
+        reg &= ~(1 << 19);
+        __raw_writel(reg, GPIOPK_BASE + GPIOPK_FS1_OFFS);
+
+        reg = __raw_readl(GPIOPK_BASE + GPIOPK_DOE_OFFS);
+        reg |= (1 << 19);
+        __raw_writel(reg, GPIOPK_BASE + GPIOPK_DOE_OFFS);
+        /* Turn on VBUS */
+        reg = __raw_readl(GPIOPK_BASE + GPIOPK_DAT_OFFS);
+        reg |= (1 << 19);
+        __raw_writel(reg, GPIOPK_BASE + GPIOPK_DAT_OFFS);
+
+        return 0;
+}
+
+static struct resource tcc8k_ohci0_resources[] = {
+        [0] = {
+                .start = (resource_size_t)USBH0_BASE,
+                .end   = (resource_size_t)USBH0_BASE + 0x5c,
+                .flags = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start = INT_USBH0,
+                .end   = INT_USBH0,
+                .flags = IORESOURCE_IRQ,
+        }
+};
+
+static struct resource tcc8k_ohci1_resources[] = {
+        [0] = {
+                .start = (resource_size_t)USBH1_BASE,
+                .end   = (resource_size_t)USBH1_BASE + 0x5c,
+                .flags = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start = INT_USBH1,
+                .end   = INT_USBH1,
+                .flags = IORESOURCE_IRQ,
+        }
+};
+
+static struct tccohci_platform_data tcc8k_ohci0_platform_data = {
+        .controller     = 0,
+        .port_mode      = PMM_PERPORT_MODE,
+        .init           = tcc8k_ohci_init,
+};
+
+static struct tccohci_platform_data tcc8k_ohci1_platform_data = {
+        .controller     = 1,
+        .port_mode      = PMM_PERPORT_MODE,
+        .init           = tcc8k_ohci_init,
+};
+
+static struct platform_device ohci0_device = {
+        .name = "tcc-ohci",
+        .id = 0,
+        .dev = {
+                .dma_mask = &tcc8k_dmamask,
+                .coherent_dma_mask = DMA_BIT_MASK(32),
+                .platform_data = &tcc8k_ohci0_platform_data,
+        },
+        .num_resources  = ARRAY_SIZE(tcc8k_ohci0_resources),
+        .resource       = tcc8k_ohci0_resources,
+};
+
+static struct platform_device ohci1_device = {
+        .name = "tcc-ohci",
+        .id = 1,
+        .dev = {
+                .dma_mask = &tcc8k_dmamask,
+                .coherent_dma_mask = DMA_BIT_MASK(32),
+                .platform_data = &tcc8k_ohci1_platform_data,
+        },
+        .num_resources  = ARRAY_SIZE(tcc8k_ohci1_resources),
+        .resource       = tcc8k_ohci1_resources,
+};
+
+static void __init tcc8k_init_usbhost(void)
+{
+        platform_device_register(&ohci0_device);
+        platform_device_register(&ohci1_device);
+}
+#else
+static void __init tcc8k_init_usbhost(void) { }
+#endif
+
+/* USB device controller*/
+#ifdef CONFIG_USB_GADGET_TCC8K
+static struct resource udc_resources[] = {
+        [0] = {
+                .start = INT_USBD,
+                .end   = INT_USBD,
+                .flags = IORESOURCE_IRQ,
+        },
+        [1] = {
+                .start = INT_UDMA,
+                .end   = INT_UDMA,
+                .flags = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device tcc8k_udc_device = {
+        .name = "tcc-udc",
+        .id = 0,
+        .resource = udc_resources,
+        .num_resources = ARRAY_SIZE(udc_resources),
+        .dev = {
+                 .dma_mask = &tcc8k_dmamask,
+                 .coherent_dma_mask = DMA_BIT_MASK(32),
+        },
+};
+
+static void __init tcc8k_init_usb_gadget(void)
+{
+        platform_device_register(&tcc8k_udc_device);
+}
+#else
+static void __init tcc8k_init_usb_gadget(void) { }
+#endif  /* CONFIG_USB_GADGET_TCC83X */
+
+static int __init tcc8k_init_devices(void)
+{
+        tcc8k_init_mmc();
+        tcc8k_init_usbhost();
+        tcc8k_init_usb_gadget();
+        return 0;
+}
+
+arch_initcall(tcc8k_init_devices);