[ARM] add Marvell Loki (88RC8480) SoC support

The Marvell Loki (88RC8480) is an ARM SoC based on a Feroceon CPU
core running at between 400 MHz and 1.0 GHz, and features a 64 bit
DDR controller, 512K of internal SRAM, two x4 PCI-Express ports,
two Gigabit Ethernet ports, two 4x SAS/SATA controllers, two UARTs,
two TWSI controllers, and IDMA/XOR engines.

This patch adds support for the Marvell LB88RC8480 Development
Board, enabling the use of the PCIe interfaces, the ethernet
interfaces, the TWSI interfaces and the UARTs.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>

1 files changed, 305 insertions, 0 deletions

diff --git a/arch/arm/mach-loki/common.c b/arch/arm/mach-loki/common.c
new file mode 100644
index 000000000000..410f50399dd3
--- /dev/null
+++ b/arch/arm/mach-loki/common.c
@@ -0,0 +1,305 @@
+/*
+ * arch/arm/mach-loki/common.c
+ *
+ * Core functions for Marvell Loki (88RC8480) SoCs
+ *
+ * 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 <asm/page.h>
+#include <asm/timex.h>
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+#include <asm/arch/loki.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 loki_io_desc[] __initdata = {
+        {
+                .virtual        = LOKI_REGS_VIRT_BASE,
+                .pfn            = __phys_to_pfn(LOKI_REGS_PHYS_BASE),
+                .length         = LOKI_REGS_SIZE,
+                .type           = MT_DEVICE,
+        },
+};
+
+void __init loki_map_io(void)
+{
+        iotable_init(loki_io_desc, ARRAY_SIZE(loki_io_desc));
+}
+
+
+/*****************************************************************************
+ * GE0
+ ****************************************************************************/
+struct mv643xx_eth_shared_platform_data loki_ge0_shared_data = {
+        .t_clk          = LOKI_TCLK,
+        .dram           = &loki_mbus_dram_info,
+};
+
+static struct resource loki_ge0_shared_resources[] = {
+        {
+                .name   = "ge0 base",
+                .start  = GE0_PHYS_BASE + 0x2000,
+                .end    = GE0_PHYS_BASE + 0x3fff,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device loki_ge0_shared = {
+        .name           = MV643XX_ETH_SHARED_NAME,
+        .id             = 0,
+        .dev            = {
+                .platform_data  = &loki_ge0_shared_data,
+        },
+        .num_resources  = 1,
+        .resource       = loki_ge0_shared_resources,
+};
+
+static struct resource loki_ge0_resources[] = {
+        {
+                .name   = "ge0 irq",
+                .start  = IRQ_LOKI_GBE_A_INT,
+                .end    = IRQ_LOKI_GBE_A_INT,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device loki_ge0 = {
+        .name           = MV643XX_ETH_NAME,
+        .id             = 0,
+        .num_resources  = 1,
+        .resource       = loki_ge0_resources,
+};
+
+void __init loki_ge0_init(struct mv643xx_eth_platform_data *eth_data)
+{
+        eth_data->shared = &loki_ge0_shared;
+        loki_ge0.dev.platform_data = eth_data;
+
+        writel(0x00079220, GE0_VIRT_BASE + 0x20b0);
+        platform_device_register(&loki_ge0_shared);
+        platform_device_register(&loki_ge0);
+}
+
+
+/*****************************************************************************
+ * GE1
+ ****************************************************************************/
+struct mv643xx_eth_shared_platform_data loki_ge1_shared_data = {
+        .t_clk          = LOKI_TCLK,
+        .dram           = &loki_mbus_dram_info,
+};
+
+static struct resource loki_ge1_shared_resources[] = {
+        {
+                .name   = "ge1 base",
+                .start  = GE1_PHYS_BASE + 0x2000,
+                .end    = GE1_PHYS_BASE + 0x3fff,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct platform_device loki_ge1_shared = {
+        .name           = MV643XX_ETH_SHARED_NAME,
+        .id             = 1,
+        .dev            = {
+                .platform_data  = &loki_ge1_shared_data,
+        },
+        .num_resources  = 1,
+        .resource       = loki_ge1_shared_resources,
+};
+
+static struct resource loki_ge1_resources[] = {
+        {
+                .name   = "ge1 irq",
+                .start  = IRQ_LOKI_GBE_B_INT,
+                .end    = IRQ_LOKI_GBE_B_INT,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device loki_ge1 = {
+        .name           = MV643XX_ETH_NAME,
+        .id             = 1,
+        .num_resources  = 1,
+        .resource       = loki_ge1_resources,
+};
+
+void __init loki_ge1_init(struct mv643xx_eth_platform_data *eth_data)
+{
+        eth_data->shared = &loki_ge1_shared;
+        loki_ge1.dev.platform_data = eth_data;
+
+        writel(0x00079220, GE1_VIRT_BASE + 0x20b0);
+        platform_device_register(&loki_ge1_shared);
+        platform_device_register(&loki_ge1);
+}
+
+
+/*****************************************************************************
+ * SAS/SATA
+ ****************************************************************************/
+static struct resource loki_sas_resources[] = {
+        {
+                .name   = "mvsas0 mem",
+                .start  = SAS0_PHYS_BASE,
+                .end    = SAS0_PHYS_BASE + 0x01ff,
+                .flags  = IORESOURCE_MEM,
+        }, {
+                .name   = "mvsas0 irq",
+                .start  = IRQ_LOKI_SAS_A,
+                .end    = IRQ_LOKI_SAS_A,
+                .flags  = IORESOURCE_IRQ,
+        }, {
+                .name   = "mvsas1 mem",
+                .start  = SAS1_PHYS_BASE,
+                .end    = SAS1_PHYS_BASE + 0x01ff,
+                .flags  = IORESOURCE_MEM,
+        }, {
+                .name   = "mvsas1 irq",
+                .start  = IRQ_LOKI_SAS_B,
+                .end    = IRQ_LOKI_SAS_B,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device loki_sas = {
+        .name           = "mvsas",
+        .id             = 0,
+        .dev            = {
+                .coherent_dma_mask      = 0xffffffff,
+        },
+        .num_resources  = ARRAY_SIZE(loki_sas_resources),
+        .resource       = loki_sas_resources,
+};
+
+void __init loki_sas_init(void)
+{
+        writel(0x8300f707, DDR_REG(0x1424));
+        platform_device_register(&loki_sas);
+}
+
+
+/*****************************************************************************
+ * UART0
+ ****************************************************************************/
+static struct plat_serial8250_port loki_uart0_data[] = {
+        {
+                .mapbase        = UART0_PHYS_BASE,
+                .membase        = (char *)UART0_VIRT_BASE,
+                .irq            = IRQ_LOKI_UART0,
+                .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+                .iotype         = UPIO_MEM,
+                .regshift       = 2,
+                .uartclk        = LOKI_TCLK,
+        }, {
+        },
+};
+
+static struct resource loki_uart0_resources[] = {
+        {
+                .start          = UART0_PHYS_BASE,
+                .end            = UART0_PHYS_BASE + 0xff,
+                .flags          = IORESOURCE_MEM,
+        }, {
+                .start          = IRQ_LOKI_UART0,
+                .end            = IRQ_LOKI_UART0,
+                .flags          = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device loki_uart0 = {
+        .name                   = "serial8250",
+        .id                     = 0,
+        .dev                    = {
+                .platform_data  = loki_uart0_data,
+        },
+        .resource               = loki_uart0_resources,
+        .num_resources          = ARRAY_SIZE(loki_uart0_resources),
+};
+
+void __init loki_uart0_init(void)
+{
+        platform_device_register(&loki_uart0);
+}
+
+
+/*****************************************************************************
+ * UART1
+ ****************************************************************************/
+static struct plat_serial8250_port loki_uart1_data[] = {
+        {
+                .mapbase        = UART1_PHYS_BASE,
+                .membase        = (char *)UART1_VIRT_BASE,
+                .irq            = IRQ_LOKI_UART1,
+                .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+                .iotype         = UPIO_MEM,
+                .regshift       = 2,
+                .uartclk        = LOKI_TCLK,
+        }, {
+        },
+};
+
+static struct resource loki_uart1_resources[] = {
+        {
+                .start          = UART1_PHYS_BASE,
+                .end            = UART1_PHYS_BASE + 0xff,
+                .flags          = IORESOURCE_MEM,
+        }, {
+                .start          = IRQ_LOKI_UART1,
+                .end            = IRQ_LOKI_UART1,
+                .flags          = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device loki_uart1 = {
+        .name                   = "serial8250",
+        .id                     = 1,
+        .dev                    = {
+                .platform_data  = loki_uart1_data,
+        },
+        .resource               = loki_uart1_resources,
+        .num_resources          = ARRAY_SIZE(loki_uart1_resources),
+};
+
+void __init loki_uart1_init(void)
+{
+        platform_device_register(&loki_uart1);
+}
+
+
+/*****************************************************************************
+ * Time handling
+ ****************************************************************************/
+static void loki_timer_init(void)
+{
+        orion_time_init(IRQ_LOKI_BRIDGE, LOKI_TCLK);
+}
+
+struct sys_timer loki_timer = {
+        .init = loki_timer_init,
+};
+
+
+/*****************************************************************************
+ * General
+ ****************************************************************************/
+void __init loki_init(void)
+{
+        printk(KERN_INFO "Loki ID: 88RC8480. TCLK=%d.\n", LOKI_TCLK);
+
+        loki_setup_cpu_mbus();
+}