Merge branch 'linus' into timers/nohz

1 files changed, 331 insertions, 0 deletions

diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
new file mode 100644
index 000000000000..5938a3b33cdc
--- /dev/null
+++ b/arch/arm/mach-kirkwood/common.c
@@ -0,0 +1,331 @@
+/*
+ * arch/arm/mach-kirkwood/common.c
+ *
+ * Core functions for Marvell Kirkwood 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 <linux/ata_platform.h>
+#include <asm/page.h>
+#include <asm/timex.h>
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+#include <asm/arch/kirkwood.h>
+#include <asm/plat-orion/cache-feroceon-l2.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 kirkwood_io_desc[] __initdata = {
+	{
+		.virtual	= KIRKWOOD_PCIE_IO_VIRT_BASE,
+		.pfn		= __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE),
+		.length		= KIRKWOOD_PCIE_IO_SIZE,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= KIRKWOOD_REGS_VIRT_BASE,
+		.pfn		= __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
+		.length		= KIRKWOOD_REGS_SIZE,
+		.type		= MT_DEVICE,
+	},
+};
+
+void __init kirkwood_map_io(void)
+{
+	iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc));
+}
+
+
+/*****************************************************************************
+ * EHCI
+ ****************************************************************************/
+static struct orion_ehci_data kirkwood_ehci_data = {
+	.dram		= &kirkwood_mbus_dram_info,
+};
+
+static u64 ehci_dmamask = 0xffffffffUL;
+
+
+/*****************************************************************************
+ * EHCI0
+ ****************************************************************************/
+static struct resource kirkwood_ehci_resources[] = {
+	{
+		.start	= USB_PHYS_BASE,
+		.end	= USB_PHYS_BASE + 0x0fff,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_KIRKWOOD_USB,
+		.end	= IRQ_KIRKWOOD_USB,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device kirkwood_ehci = {
+	.name		= "orion-ehci",
+	.id		= 0,
+	.dev		= {
+		.dma_mask		= &ehci_dmamask,
+		.coherent_dma_mask	= 0xffffffff,
+		.platform_data		= &kirkwood_ehci_data,
+	},
+	.resource	= kirkwood_ehci_resources,
+	.num_resources	= ARRAY_SIZE(kirkwood_ehci_resources),
+};
+
+void __init kirkwood_ehci_init(void)
+{
+	platform_device_register(&kirkwood_ehci);
+}
+
+
+/*****************************************************************************
+ * GE00
+ ****************************************************************************/
+struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = {
+	.t_clk		= KIRKWOOD_TCLK,
+	.dram		= &kirkwood_mbus_dram_info,
+};
+
+static struct resource kirkwood_ge00_shared_resources[] = {
+	{
+		.name	= "ge00 base",
+		.start	= GE00_PHYS_BASE + 0x2000,
+		.end	= GE00_PHYS_BASE + 0x3fff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device kirkwood_ge00_shared = {
+	.name		= MV643XX_ETH_SHARED_NAME,
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &kirkwood_ge00_shared_data,
+	},
+	.num_resources	= 1,
+	.resource	= kirkwood_ge00_shared_resources,
+};
+
+static struct resource kirkwood_ge00_resources[] = {
+	{
+		.name	= "ge00 irq",
+		.start	= IRQ_KIRKWOOD_GE00_SUM,
+		.end	= IRQ_KIRKWOOD_GE00_SUM,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device kirkwood_ge00 = {
+	.name		= MV643XX_ETH_NAME,
+	.id		= 0,
+	.num_resources	= 1,
+	.resource	= kirkwood_ge00_resources,
+};
+
+void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
+{
+	eth_data->shared = &kirkwood_ge00_shared;
+	kirkwood_ge00.dev.platform_data = eth_data;
+
+	platform_device_register(&kirkwood_ge00_shared);
+	platform_device_register(&kirkwood_ge00);
+}
+
+
+/*****************************************************************************
+ * SoC RTC
+ ****************************************************************************/
+static struct resource kirkwood_rtc_resource = {
+	.start	= RTC_PHYS_BASE,
+	.end	= RTC_PHYS_BASE + SZ_16 - 1,
+	.flags	= IORESOURCE_MEM,
+};
+
+void __init kirkwood_rtc_init(void)
+{
+	platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1);
+}
+
+
+/*****************************************************************************
+ * SATA
+ ****************************************************************************/
+static struct resource kirkwood_sata_resources[] = {
+	{
+		.name	= "sata base",
+		.start	= SATA_PHYS_BASE,
+		.end	= SATA_PHYS_BASE + 0x5000 - 1,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.name	= "sata irq",
+		.start	= IRQ_KIRKWOOD_SATA,
+		.end	= IRQ_KIRKWOOD_SATA,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device kirkwood_sata = {
+	.name		= "sata_mv",
+	.id		= 0,
+	.dev		= {
+		.coherent_dma_mask	= 0xffffffff,
+	},
+	.num_resources	= ARRAY_SIZE(kirkwood_sata_resources),
+	.resource	= kirkwood_sata_resources,
+};
+
+void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
+{
+	sata_data->dram = &kirkwood_mbus_dram_info;
+	kirkwood_sata.dev.platform_data = sata_data;
+	platform_device_register(&kirkwood_sata);
+}
+
+
+/*****************************************************************************
+ * UART0
+ ****************************************************************************/
+static struct plat_serial8250_port kirkwood_uart0_data[] = {
+	{
+		.mapbase	= UART0_PHYS_BASE,
+		.membase	= (char *)UART0_VIRT_BASE,
+		.irq		= IRQ_KIRKWOOD_UART_0,
+		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= KIRKWOOD_TCLK,
+	}, {
+	},
+};
+
+static struct resource kirkwood_uart0_resources[] = {
+	{
+		.start		= UART0_PHYS_BASE,
+		.end		= UART0_PHYS_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	}, {
+		.start		= IRQ_KIRKWOOD_UART_0,
+		.end		= IRQ_KIRKWOOD_UART_0,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device kirkwood_uart0 = {
+	.name			= "serial8250",
+	.id			= 0,
+	.dev			= {
+		.platform_data	= kirkwood_uart0_data,
+	},
+	.resource		= kirkwood_uart0_resources,
+	.num_resources		= ARRAY_SIZE(kirkwood_uart0_resources),
+};
+
+void __init kirkwood_uart0_init(void)
+{
+	platform_device_register(&kirkwood_uart0);
+}
+
+
+/*****************************************************************************
+ * UART1
+ ****************************************************************************/
+static struct plat_serial8250_port kirkwood_uart1_data[] = {
+	{
+		.mapbase	= UART1_PHYS_BASE,
+		.membase	= (char *)UART1_VIRT_BASE,
+		.irq		= IRQ_KIRKWOOD_UART_1,
+		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= KIRKWOOD_TCLK,
+	}, {
+	},
+};
+
+static struct resource kirkwood_uart1_resources[] = {
+	{
+		.start		= UART1_PHYS_BASE,
+		.end		= UART1_PHYS_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	}, {
+		.start		= IRQ_KIRKWOOD_UART_1,
+		.end		= IRQ_KIRKWOOD_UART_1,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device kirkwood_uart1 = {
+	.name			= "serial8250",
+	.id			= 1,
+	.dev			= {
+		.platform_data	= kirkwood_uart1_data,
+	},
+	.resource		= kirkwood_uart1_resources,
+	.num_resources		= ARRAY_SIZE(kirkwood_uart1_resources),
+};
+
+void __init kirkwood_uart1_init(void)
+{
+	platform_device_register(&kirkwood_uart1);
+}
+
+
+/*****************************************************************************
+ * Time handling
+ ****************************************************************************/
+static void kirkwood_timer_init(void)
+{
+	orion_time_init(IRQ_KIRKWOOD_BRIDGE, KIRKWOOD_TCLK);
+}
+
+struct sys_timer kirkwood_timer = {
+	.init = kirkwood_timer_init,
+};
+
+
+/*****************************************************************************
+ * General
+ ****************************************************************************/
+static char * __init kirkwood_id(void)
+{
+	switch (readl(DEVICE_ID) & 0x3) {
+	case 0:
+		return "88F6180";
+	case 1:
+		return "88F6192";
+	case 2:
+		return "88F6281";
+	}
+
+	return "unknown 88F6000 variant";
+}
+
+static int __init is_l2_writethrough(void)
+{
+	return !!(readl(L2_CONFIG_REG) & L2_WRITETHROUGH);
+}
+
+void __init kirkwood_init(void)
+{
+	printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
+		kirkwood_id(), KIRKWOOD_TCLK);
+
+	kirkwood_setup_cpu_mbus();
+
+#ifdef CONFIG_CACHE_FEROCEON_L2
+	feroceon_l2_init(is_l2_writethrough());
+#endif
+}