[PATCH 06/07] Add common platform devices for TCC8xxx SoCs
Hans J. Koch
hjk at linutronix.de
Mon Mar 22 15:29:19 EDT 2010
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 at linutronix.de>
---
arch/arm/mach-tcc8k/Makefile | 2 +-
arch/arm/mach-tcc8k/devices.c | 274 +++++++++++++++++++++++++++++++++++++++++
2 files changed, 275 insertions(+), 1 deletions(-)
create mode 100644 arch/arm/mach-tcc8k/devices.c
diff --git a/arch/arm/mach-tcc8k/Makefile b/arch/arm/mach-tcc8k/Makefile
index 09552e2..e8a1134 100644
--- a/arch/arm/mach-tcc8k/Makefile
+++ b/arch/arm/mach-tcc8k/Makefile
@@ -3,5 +3,5 @@
#
# 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/devices.c b/arch/arm/mach-tcc8k/devices.c
new file mode 100644
index 0000000..b6273af
--- /dev/null
+++ b/arch/arm/mach-tcc8k/devices.c
@@ -0,0 +1,274 @@
+/*
+ * linux/arch/arm/mach-tcc8k/devices.c
+ *
+ * Copyright (C) Telechips, Inc.
+ * Modifications for mainline (C) 2009 Hans J. Koch <hjk at linutronix.de>
+ *
+ * Licensed under the terms of GPL v2.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+#include <asm/mach/map.h>
+
+#include <mach/tcc8k-regs.h>
+#include <mach/irqs.h>
+
+static u64 tcc8k_dmamask = DMA_BIT_MASK(32);
+
+#ifdef CONFIG_MTD_NAND_TCC
+/* NAND controller */
+static struct resource tcc_nand_resources[] = {
+ {
+ .start = NFC_BASE,
+ .end = 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_SERIAL_TCC
+static struct resource uart0_resources[] = {
+ [0] = {
+ .start = UART0_BASE,
+ .end = UART0_BASE + 0xff,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = INT_UART0,
+ .end = INT_UART0,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device tcc8k_uart0_device = {
+ .name = "tcc-uart",
+ .id = 0,
+ .resource = uart0_resources,
+ .num_resources = ARRAY_SIZE(uart0_resources),
+};
+
+static inline void tcc8k_init_uart(void)
+{
+ u32 reg = __raw_readl(GPIOPU_BASE + GPIOPU_FS0_OFFS);
+
+ reg |= GPIOPU_FS0_TXD0 | GPIOPU_FS0_RXD0 |
+ GPIOPU_FS0_CTS0 | GPIOPU_FS0_RTS0;
+ __raw_writel(reg, GPIOPU_BASE + GPIOPU_FS0_OFFS);
+
+ platform_device_register(&tcc8k_uart0_device);
+}
+#else
+static inline void tcc8k_init_uart(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 = USBH0_BASE,
+ .end = USBH0_BASE + 0x5c,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = INT_USBH0,
+ .end = INT_USBH0,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct resource tcc8k_ohci1_resources[] = {
+ [0] = {
+ .start = USBH1_BASE,
+ .end = 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_uart();
+ tcc8k_init_mmc();
+ tcc8k_init_usbhost();
+ tcc8k_init_usb_gadget();
+ return 0;
+}
+
+arch_initcall(tcc8k_init_devices);
--
1.6.3.3
More information about the linux-arm-kernel
mailing list