1 files changed, 437 insertions, 0 deletions

diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c
new file mode 100644
index 00000000000..faf4e321191
--- /dev/null
+++ b/arch/arm/mach-orion5x/common.c
@@ -0,0 +1,437 @@
+/*
+ * arch/arm/mach-orion5x/common.c
+ *
+ * Core functions for Marvell Orion 5x SoCs
+ *
+ * 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/mbus.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/mv643xx_i2c.h>
+#include <linux/ata_platform.h>
+#include <asm/page.h>
+#include <asm/setup.h>
+#include <asm/timex.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/orion5x.h>
+#include <asm/plat-orion/ehci-orion.h>
+#include <asm/plat-orion/orion_nand.h>
+#include <asm/plat-orion/time.h>
+#include "common.h"
+
+/*****************************************************************************
+ * I/O Address Mapping
+ ****************************************************************************/
+static struct map_desc orion5x_io_desc[] __initdata = {
+        {
+                .virtual        = ORION5X_REGS_VIRT_BASE,
+                .pfn            = __phys_to_pfn(ORION5X_REGS_PHYS_BASE),
+                .length         = ORION5X_REGS_SIZE,
+                .type           = MT_DEVICE,
+        }, {
+                .virtual        = ORION5X_PCIE_IO_VIRT_BASE,
+                .pfn            = __phys_to_pfn(ORION5X_PCIE_IO_PHYS_BASE),
+                .length         = ORION5X_PCIE_IO_SIZE,
+                .type           = MT_DEVICE,
+        }, {
+                .virtual        = ORION5X_PCI_IO_VIRT_BASE,
+                .pfn            = __phys_to_pfn(ORION5X_PCI_IO_PHYS_BASE),
+                .length         = ORION5X_PCI_IO_SIZE,
+                .type           = MT_DEVICE,
+        }, {
+                .virtual        = ORION5X_PCIE_WA_VIRT_BASE,
+                .pfn            = __phys_to_pfn(ORION5X_PCIE_WA_PHYS_BASE),
+                .length         = ORION5X_PCIE_WA_SIZE,
+                .type           = MT_DEVICE,
+        },
+};
+
+void __init orion5x_map_io(void)
+{
+        iotable_init(orion5x_io_desc, ARRAY_SIZE(orion5x_io_desc));
+}
+
+
+/*****************************************************************************
+ * EHCI
+ ****************************************************************************/
+static struct orion_ehci_data orion5x_ehci_data = {
+        .dram           = &orion5x_mbus_dram_info,
+};
+
+static u64 ehci_dmamask = 0xffffffffUL;
+
+
+/*****************************************************************************
+ * EHCI0
+ ****************************************************************************/
+static struct resource orion5x_ehci0_resources[] = {
+        {
+                .start  = ORION5X_USB0_PHYS_BASE,
+                .end    = ORION5X_USB0_PHYS_BASE + SZ_4K - 1,
+                .flags  = IORESOURCE_MEM,
+        }, {
+                .start  = IRQ_ORION5X_USB0_CTRL,
+                .end    = IRQ_ORION5X_USB0_CTRL,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device orion5x_ehci0 = {
+        .name           = "orion-ehci",
+        .id             = 0,
+        .dev            = {
+                .dma_mask               = &ehci_dmamask,
+                .coherent_dma_mask      = 0xffffffff,
+                .platform_data          = &orion5x_ehci_data,
+        },
+        .resource       = orion5x_ehci0_resources,
+        .num_resources  = ARRAY_SIZE(orion5x_ehci0_resources),
+};
+
+void __init orion5x_ehci0_init(void)
+{
+        platform_device_register(&orion5x_ehci0);
+}
+
+
+/*****************************************************************************
+ * EHCI1
+ ****************************************************************************/
+static struct resource orion5x_ehci1_resources[] = {
+        {
+                .start  = ORION5X_USB1_PHYS_BASE,
+                .end    = ORION5X_USB1_PHYS_BASE + SZ_4K - 1,
+                .flags  = IORESOURCE_MEM,
+        }, {
+                .start  = IRQ_ORION5X_USB1_CTRL,
+                .end    = IRQ_ORION5X_USB1_CTRL,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device orion5x_ehci1 = {
+        .name           = "orion-ehci",
+        .id             = 1,
+        .dev            = {
+                .dma_mask               = &ehci_dmamask,
+                .coherent_dma_mask      = 0xffffffff,
+                .platform_data          = &orion5x_ehci_data,
+        },
+        .resource       = orion5x_ehci1_resources,
+        .num_resources  = ARRAY_SIZE(orion5x_ehci1_resources),
+};
+
+void __init orion5x_ehci1_init(void)
+{
+        platform_device_register(&orion5x_ehci1);
+}
+
+
+/*****************************************************************************
+ * GigE
+ ****************************************************************************/
+struct mv643xx_eth_shared_platform_data orion5x_eth_shared_data = {
+        .dram           = &orion5x_mbus_dram_info,
+        .t_clk          = ORION5X_TCLK,
+};
+
+static struct resource orion5x_eth_shared_resources[] = {
+        {
+                .start  = ORION5X_ETH_PHYS_BASE + 0x2000,
+                .end    = ORION5X_ETH_PHYS_BASE + 0x3fff,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device orion5x_eth_shared = {
+        .name           = MV643XX_ETH_SHARED_NAME,
+        .id             = 0,
+        .dev            = {
+                .platform_data  = &orion5x_eth_shared_data,
+        },
+        .num_resources  = 1,
+        .resource       = orion5x_eth_shared_resources,
+};
+
+static struct resource orion5x_eth_resources[] = {
+        {
+                .name   = "eth irq",
+                .start  = IRQ_ORION5X_ETH_SUM,
+                .end    = IRQ_ORION5X_ETH_SUM,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device orion5x_eth = {
+        .name           = MV643XX_ETH_NAME,
+        .id             = 0,
+        .num_resources  = 1,
+        .resource       = orion5x_eth_resources,
+};
+
+void __init orion5x_eth_init(struct mv643xx_eth_platform_data *eth_data)
+{
+        eth_data->shared = &orion5x_eth_shared;
+        orion5x_eth.dev.platform_data = eth_data;
+
+        platform_device_register(&orion5x_eth_shared);
+        platform_device_register(&orion5x_eth);
+}
+
+
+/*****************************************************************************
+ * I2C
+ ****************************************************************************/
+static struct mv64xxx_i2c_pdata orion5x_i2c_pdata = {
+        .freq_m         = 8, /* assumes 166 MHz TCLK */
+        .freq_n         = 3,
+        .timeout        = 1000, /* Default timeout of 1 second */
+};
+
+static struct resource orion5x_i2c_resources[] = {
+        {
+                .name   = "i2c base",
+                .start  = I2C_PHYS_BASE,
+                .end    = I2C_PHYS_BASE + 0x1f,
+                .flags  = IORESOURCE_MEM,
+        }, {
+                .name   = "i2c irq",
+                .start  = IRQ_ORION5X_I2C,
+                .end    = IRQ_ORION5X_I2C,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device orion5x_i2c = {
+        .name           = MV64XXX_I2C_CTLR_NAME,
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(orion5x_i2c_resources),
+        .resource       = orion5x_i2c_resources,
+        .dev            = {
+                .platform_data  = &orion5x_i2c_pdata,
+        },
+};
+
+void __init orion5x_i2c_init(void)
+{
+        platform_device_register(&orion5x_i2c);
+}
+
+
+/*****************************************************************************
+ * SATA
+ ****************************************************************************/
+static struct resource orion5x_sata_resources[] = {
+        {
+                .name   = "sata base",
+                .start  = ORION5X_SATA_PHYS_BASE,
+                .end    = ORION5X_SATA_PHYS_BASE + 0x5000 - 1,
+                .flags  = IORESOURCE_MEM,
+        }, {
+                .name   = "sata irq",
+                .start  = IRQ_ORION5X_SATA,
+                .end    = IRQ_ORION5X_SATA,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device orion5x_sata = {
+        .name           = "sata_mv",
+        .id             = 0,
+        .dev            = {
+                .coherent_dma_mask      = 0xffffffff,
+        },
+        .num_resources  = ARRAY_SIZE(orion5x_sata_resources),
+        .resource       = orion5x_sata_resources,
+};
+
+void __init orion5x_sata_init(struct mv_sata_platform_data *sata_data)
+{
+        sata_data->dram = &orion5x_mbus_dram_info;
+        orion5x_sata.dev.platform_data = sata_data;
+        platform_device_register(&orion5x_sata);
+}
+
+
+/*****************************************************************************
+ * UART0
+ ****************************************************************************/
+static struct plat_serial8250_port orion5x_uart0_data[] = {
+        {
+                .mapbase        = UART0_PHYS_BASE,
+                .membase        = (char *)UART0_VIRT_BASE,
+                .irq            = IRQ_ORION5X_UART0,
+                .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+                .iotype         = UPIO_MEM,
+                .regshift       = 2,
+                .uartclk        = ORION5X_TCLK,
+        }, {
+        },
+};
+
+static struct resource orion5x_uart0_resources[] = {
+        {
+                .start          = UART0_PHYS_BASE,
+                .end            = UART0_PHYS_BASE + 0xff,
+                .flags          = IORESOURCE_MEM,
+        }, {
+                .start          = IRQ_ORION5X_UART0,
+                .end            = IRQ_ORION5X_UART0,
+                .flags          = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device orion5x_uart0 = {
+        .name                   = "serial8250",
+        .id                     = PLAT8250_DEV_PLATFORM,
+        .dev                    = {
+                .platform_data  = orion5x_uart0_data,
+        },
+        .resource               = orion5x_uart0_resources,
+        .num_resources          = ARRAY_SIZE(orion5x_uart0_resources),
+};
+
+void __init orion5x_uart0_init(void)
+{
+        platform_device_register(&orion5x_uart0);
+}
+
+
+/*****************************************************************************
+ * UART1
+ ****************************************************************************/
+static struct plat_serial8250_port orion5x_uart1_data[] = {
+        {
+                .mapbase        = UART1_PHYS_BASE,
+                .membase        = (char *)UART1_VIRT_BASE,
+                .irq            = IRQ_ORION5X_UART1,
+                .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+                .iotype         = UPIO_MEM,
+                .regshift       = 2,
+                .uartclk        = ORION5X_TCLK,
+        }, {
+        },
+};
+
+static struct resource orion5x_uart1_resources[] = {
+        {
+                .start          = UART1_PHYS_BASE,
+                .end            = UART1_PHYS_BASE + 0xff,
+                .flags          = IORESOURCE_MEM,
+        }, {
+                .start          = IRQ_ORION5X_UART1,
+                .end            = IRQ_ORION5X_UART1,
+                .flags          = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device orion5x_uart1 = {
+        .name                   = "serial8250",
+        .id                     = PLAT8250_DEV_PLATFORM1,
+        .dev                    = {
+                .platform_data  = orion5x_uart1_data,
+        },
+        .resource               = orion5x_uart1_resources,
+        .num_resources          = ARRAY_SIZE(orion5x_uart1_resources),
+};
+
+void __init orion5x_uart1_init(void)
+{
+        platform_device_register(&orion5x_uart1);
+}
+
+
+/*****************************************************************************
+ * Time handling
+ ****************************************************************************/
+static void orion5x_timer_init(void)
+{
+        orion_time_init(IRQ_ORION5X_BRIDGE, ORION5X_TCLK);
+}
+
+struct sys_timer orion5x_timer = {
+        .init = orion5x_timer_init,
+};
+
+
+/*****************************************************************************
+ * General
+ ****************************************************************************/
+/*
+ * Identify device ID and rev from PCIe configuration header space '0'.
+ */
+static void __init orion5x_id(u32 *dev, u32 *rev, char **dev_name)
+{
+        orion5x_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 if (*rev == MV88F5181L_REV_A1) {
+                        *dev_name = "MV88F5181L-Rev-A1";
+                } else {
+                        *dev_name = "MV88F5181(L)-Rev-Unsupported";
+                }
+        } else {
+                *dev_name = "Device-Unknown";
+        }
+}
+
+void __init orion5x_init(void)
+{
+        char *dev_name;
+        u32 dev, rev;
+
+        orion5x_id(&dev, &rev, &dev_name);
+        printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, ORION5X_TCLK);
+
+        /*
+         * Setup Orion address map
+         */
+        orion5x_setup_cpu_mbus_bridge();
+}
+
+/*
+ * Many orion-based systems have buggy bootloader implementations.
+ * This is a common fixup for bogus memory tags.
+ */
+void __init tag_fixup_mem32(struct machine_desc *mdesc, struct tag *t,
+                            char **from, struct meminfo *meminfo)
+{
+        for (; t->hdr.size; t = tag_next(t))
+                if (t->hdr.tag == ATAG_MEM &&
+                    (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK ||
+                     t->u.mem.start & ~PAGE_MASK)) {
+                        printk(KERN_WARNING
+                               "Clearing invalid memory bank %dKB@0x%08x\n",
+                               t->u.mem.size / 1024, t->u.mem.start);
+                        t->hdr.tag = 0;
+                }
+}