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-rw-r--r--arch/arm/mach-orion/common.c315
1 files changed, 315 insertions, 0 deletions
diff --git a/arch/arm/mach-orion/common.c b/arch/arm/mach-orion/common.c
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+++ b/arch/arm/mach-orion/common.c
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+/*
+ * arch/arm/mach-orion/common.c
+ *
+ * Core functions for Marvell Orion System On Chip
+ *
+ * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/mv643xx_i2c.h>
+#include <asm/page.h>
+#include <asm/timex.h>
+#include <asm/mach/map.h>
+#include <asm/arch/orion.h>
+#include "common.h"
+
+/*****************************************************************************
+ * I/O Address Mapping
+ ****************************************************************************/
+static struct map_desc orion_io_desc[] __initdata = {
+ {
+ .virtual = ORION_REGS_BASE,
+ .pfn = __phys_to_pfn(ORION_REGS_BASE),
+ .length = ORION_REGS_SIZE,
+ .type = MT_DEVICE
+ },
+ {
+ .virtual = ORION_PCIE_IO_BASE,
+ .pfn = __phys_to_pfn(ORION_PCIE_IO_BASE),
+ .length = ORION_PCIE_IO_SIZE,
+ .type = MT_DEVICE
+ },
+ {
+ .virtual = ORION_PCI_IO_BASE,
+ .pfn = __phys_to_pfn(ORION_PCI_IO_BASE),
+ .length = ORION_PCI_IO_SIZE,
+ .type = MT_DEVICE
+ },
+ {
+ .virtual = ORION_PCIE_WA_BASE,
+ .pfn = __phys_to_pfn(ORION_PCIE_WA_BASE),
+ .length = ORION_PCIE_WA_SIZE,
+ .type = MT_DEVICE
+ },
+};
+
+void __init orion_map_io(void)
+{
+ iotable_init(orion_io_desc, ARRAY_SIZE(orion_io_desc));
+}
+
+/*****************************************************************************
+ * UART
+ ****************************************************************************/
+
+static struct resource orion_uart_resources[] = {
+ {
+ .start = UART0_BASE,
+ .end = UART0_BASE + 0xff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_ORION_UART0,
+ .end = IRQ_ORION_UART0,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = UART1_BASE,
+ .end = UART1_BASE + 0xff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_ORION_UART1,
+ .end = IRQ_ORION_UART1,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct plat_serial8250_port orion_uart_data[] = {
+ {
+ .mapbase = UART0_BASE,
+ .membase = (char *)UART0_BASE,
+ .irq = IRQ_ORION_UART0,
+ .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+ .iotype = UPIO_MEM,
+ .regshift = 2,
+ .uartclk = ORION_TCLK,
+ },
+ {
+ .mapbase = UART1_BASE,
+ .membase = (char *)UART1_BASE,
+ .irq = IRQ_ORION_UART1,
+ .flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+ .iotype = UPIO_MEM,
+ .regshift = 2,
+ .uartclk = ORION_TCLK,
+ },
+ { },
+};
+
+static struct platform_device orion_uart = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = orion_uart_data,
+ },
+ .resource = orion_uart_resources,
+ .num_resources = ARRAY_SIZE(orion_uart_resources),
+};
+
+/*******************************************************************************
+ * USB Controller - 2 interfaces
+ ******************************************************************************/
+
+static struct resource orion_ehci0_resources[] = {
+ {
+ .start = ORION_USB0_REG_BASE,
+ .end = ORION_USB0_REG_BASE + SZ_4K,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_ORION_USB0_CTRL,
+ .end = IRQ_ORION_USB0_CTRL,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource orion_ehci1_resources[] = {
+ {
+ .start = ORION_USB1_REG_BASE,
+ .end = ORION_USB1_REG_BASE + SZ_4K,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_ORION_USB1_CTRL,
+ .end = IRQ_ORION_USB1_CTRL,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static u64 ehci_dmamask = 0xffffffffUL;
+
+static struct platform_device orion_ehci0 = {
+ .name = "orion-ehci",
+ .id = 0,
+ .dev = {
+ .dma_mask = &ehci_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .resource = orion_ehci0_resources,
+ .num_resources = ARRAY_SIZE(orion_ehci0_resources),
+};
+
+static struct platform_device orion_ehci1 = {
+ .name = "orion-ehci",
+ .id = 1,
+ .dev = {
+ .dma_mask = &ehci_dmamask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+ .resource = orion_ehci1_resources,
+ .num_resources = ARRAY_SIZE(orion_ehci1_resources),
+};
+
+/*****************************************************************************
+ * Gigabit Ethernet port
+ * (The Orion and Discovery (MV643xx) families use the same Ethernet driver)
+ ****************************************************************************/
+
+static struct resource orion_eth_shared_resources[] = {
+ {
+ .start = ORION_ETH_REG_BASE,
+ .end = ORION_ETH_REG_BASE + 0xffff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device orion_eth_shared = {
+ .name = MV643XX_ETH_SHARED_NAME,
+ .id = 0,
+ .num_resources = 1,
+ .resource = orion_eth_shared_resources,
+};
+
+static struct resource orion_eth_resources[] = {
+ {
+ .name = "eth irq",
+ .start = IRQ_ORION_ETH_SUM,
+ .end = IRQ_ORION_ETH_SUM,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct platform_device orion_eth = {
+ .name = MV643XX_ETH_NAME,
+ .id = 0,
+ .num_resources = 1,
+ .resource = orion_eth_resources,
+};
+
+void __init orion_eth_init(struct mv643xx_eth_platform_data *eth_data)
+{
+ orion_eth.dev.platform_data = eth_data;
+ platform_device_register(&orion_eth_shared);
+ platform_device_register(&orion_eth);
+}
+
+/*****************************************************************************
+ * I2C controller
+ * (The Orion and Discovery (MV643xx) families share the same I2C controller)
+ ****************************************************************************/
+
+static struct mv64xxx_i2c_pdata orion_i2c_pdata = {
+ .freq_m = 8, /* assumes 166 MHz TCLK */
+ .freq_n = 3,
+ .timeout = 1000, /* Default timeout of 1 second */
+};
+
+static struct resource orion_i2c_resources[] = {
+ {
+ .name = "i2c base",
+ .start = I2C_BASE,
+ .end = I2C_BASE + 0x20 -1,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .name = "i2c irq",
+ .start = IRQ_ORION_I2C,
+ .end = IRQ_ORION_I2C,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device orion_i2c = {
+ .name = MV64XXX_I2C_CTLR_NAME,
+ .id = 0,
+ .num_resources = ARRAY_SIZE(orion_i2c_resources),
+ .resource = orion_i2c_resources,
+ .dev = {
+ .platform_data = &orion_i2c_pdata,
+ },
+};
+
+/*****************************************************************************
+ * General
+ ****************************************************************************/
+
+/*
+ * Identify device ID and rev from PCIE configuration header space '0'.
+ */
+static void orion_id(u32 *dev, u32 *rev, char **dev_name)
+{
+ orion_pcie_id(dev, rev);
+
+ if (*dev == MV88F5281_DEV_ID) {
+ if (*rev == MV88F5281_REV_D2) {
+ *dev_name = "MV88F5281-D2";
+ } else if (*rev == MV88F5281_REV_D1) {
+ *dev_name = "MV88F5281-D1";
+ } else {
+ *dev_name = "MV88F5281-Rev-Unsupported";
+ }
+ } else if (*dev == MV88F5182_DEV_ID) {
+ if (*rev == MV88F5182_REV_A2) {
+ *dev_name = "MV88F5182-A2";
+ } else {
+ *dev_name = "MV88F5182-Rev-Unsupported";
+ }
+ } else if (*dev == MV88F5181_DEV_ID) {
+ if (*rev == MV88F5181_REV_B1) {
+ *dev_name = "MV88F5181-Rev-B1";
+ } else {
+ *dev_name = "MV88F5181-Rev-Unsupported";
+ }
+ } else {
+ *dev_name = "Device-Unknown";
+ }
+}
+
+void __init orion_init(void)
+{
+ char *dev_name;
+ u32 dev, rev;
+
+ orion_id(&dev, &rev, &dev_name);
+ printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, ORION_TCLK);
+
+ /*
+ * Setup Orion address map
+ */
+ orion_setup_cpu_wins();
+ orion_setup_usb_wins();
+ orion_setup_eth_wins();
+ orion_setup_pci_wins();
+ orion_setup_pcie_wins();
+ if (dev == MV88F5182_DEV_ID)
+ orion_setup_sata_wins();
+
+ /*
+ * REgister devices
+ */
+ platform_device_register(&orion_uart);
+ platform_device_register(&orion_ehci0);
+ if (dev == MV88F5182_DEV_ID)
+ platform_device_register(&orion_ehci1);
+ platform_device_register(&orion_i2c);
+}