1 files changed, 616 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..85cad05d8c5b
--- /dev/null
+++ b/arch/arm/mach-kirkwood/common.c
@@ -0,0 +1,616 @@
+/*
+ * 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 <linux/spi/orion_spi.h>
+#include <asm/page.h>
+#include <asm/timex.h>
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+#include <mach/kirkwood.h>
+#include <plat/cache-feroceon-l2.h>
+#include <plat/ehci-orion.h>
+#include <plat/mv_xor.h>
+#include <plat/orion_nand.h>
+#include <plat/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 = {
+	.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,
+	}, {
+		.name	= "ge00 err irq",
+		.start	= IRQ_KIRKWOOD_GE00_ERR,
+		.end	= IRQ_KIRKWOOD_GE00_ERR,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device kirkwood_ge00_shared = {
+	.name		= MV643XX_ETH_SHARED_NAME,
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &kirkwood_ge00_shared_data,
+	},
+	.num_resources	= ARRAY_SIZE(kirkwood_ge00_shared_resources),
+	.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);
+}
+
+
+/*****************************************************************************
+ * SPI
+ ****************************************************************************/
+static struct orion_spi_info kirkwood_spi_plat_data = {
+};
+
+static struct resource kirkwood_spi_resources[] = {
+	{
+		.start	= SPI_PHYS_BASE,
+		.end	= SPI_PHYS_BASE + SZ_512 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device kirkwood_spi = {
+	.name		= "orion_spi",
+	.id		= 0,
+	.resource	= kirkwood_spi_resources,
+	.dev		= {
+		.platform_data	= &kirkwood_spi_plat_data,
+	},
+	.num_resources	= ARRAY_SIZE(kirkwood_spi_resources),
+};
+
+void __init kirkwood_spi_init()
+{
+	platform_device_register(&kirkwood_spi);
+}
+
+
+/*****************************************************************************
+ * 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	= 0,
+	}, {
+	},
+};
+
+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	= 0,
+	}, {
+	},
+};
+
+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);
+}
+
+
+/*****************************************************************************
+ * XOR
+ ****************************************************************************/
+static struct mv_xor_platform_shared_data kirkwood_xor_shared_data = {
+	.dram		= &kirkwood_mbus_dram_info,
+};
+
+static u64 kirkwood_xor_dmamask = DMA_32BIT_MASK;
+
+
+/*****************************************************************************
+ * XOR0
+ ****************************************************************************/
+static struct resource kirkwood_xor0_shared_resources[] = {
+	{
+		.name	= "xor 0 low",
+		.start	= XOR0_PHYS_BASE,
+		.end	= XOR0_PHYS_BASE + 0xff,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.name	= "xor 0 high",
+		.start	= XOR0_HIGH_PHYS_BASE,
+		.end	= XOR0_HIGH_PHYS_BASE + 0xff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device kirkwood_xor0_shared = {
+	.name		= MV_XOR_SHARED_NAME,
+	.id		= 0,
+	.dev		= {
+		.platform_data = &kirkwood_xor_shared_data,
+	},
+	.num_resources	= ARRAY_SIZE(kirkwood_xor0_shared_resources),
+	.resource	= kirkwood_xor0_shared_resources,
+};
+
+static struct resource kirkwood_xor00_resources[] = {
+	[0] = {
+		.start	= IRQ_KIRKWOOD_XOR_00,
+		.end	= IRQ_KIRKWOOD_XOR_00,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct mv_xor_platform_data kirkwood_xor00_data = {
+	.shared		= &kirkwood_xor0_shared,
+	.hw_id		= 0,
+	.pool_size	= PAGE_SIZE,
+};
+
+static struct platform_device kirkwood_xor00_channel = {
+	.name		= MV_XOR_NAME,
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(kirkwood_xor00_resources),
+	.resource	= kirkwood_xor00_resources,
+	.dev		= {
+		.dma_mask		= &kirkwood_xor_dmamask,
+		.coherent_dma_mask	= DMA_64BIT_MASK,
+		.platform_data		= (void *)&kirkwood_xor00_data,
+	},
+};
+
+static struct resource kirkwood_xor01_resources[] = {
+	[0] = {
+		.start	= IRQ_KIRKWOOD_XOR_01,
+		.end	= IRQ_KIRKWOOD_XOR_01,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct mv_xor_platform_data kirkwood_xor01_data = {
+	.shared		= &kirkwood_xor0_shared,
+	.hw_id		= 1,
+	.pool_size	= PAGE_SIZE,
+};
+
+static struct platform_device kirkwood_xor01_channel = {
+	.name		= MV_XOR_NAME,
+	.id		= 1,
+	.num_resources	= ARRAY_SIZE(kirkwood_xor01_resources),
+	.resource	= kirkwood_xor01_resources,
+	.dev		= {
+		.dma_mask		= &kirkwood_xor_dmamask,
+		.coherent_dma_mask	= DMA_64BIT_MASK,
+		.platform_data		= (void *)&kirkwood_xor01_data,
+	},
+};
+
+void __init kirkwood_xor0_init(void)
+{
+	platform_device_register(&kirkwood_xor0_shared);
+
+	/*
+	 * two engines can't do memset simultaneously, this limitation
+	 * satisfied by removing memset support from one of the engines.
+	 */
+	dma_cap_set(DMA_MEMCPY, kirkwood_xor00_data.cap_mask);
+	dma_cap_set(DMA_XOR, kirkwood_xor00_data.cap_mask);
+	platform_device_register(&kirkwood_xor00_channel);
+
+	dma_cap_set(DMA_MEMCPY, kirkwood_xor01_data.cap_mask);
+	dma_cap_set(DMA_MEMSET, kirkwood_xor01_data.cap_mask);
+	dma_cap_set(DMA_XOR, kirkwood_xor01_data.cap_mask);
+	platform_device_register(&kirkwood_xor01_channel);
+}
+
+
+/*****************************************************************************
+ * XOR1
+ ****************************************************************************/
+static struct resource kirkwood_xor1_shared_resources[] = {
+	{
+		.name	= "xor 1 low",
+		.start	= XOR1_PHYS_BASE,
+		.end	= XOR1_PHYS_BASE + 0xff,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.name	= "xor 1 high",
+		.start	= XOR1_HIGH_PHYS_BASE,
+		.end	= XOR1_HIGH_PHYS_BASE + 0xff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device kirkwood_xor1_shared = {
+	.name		= MV_XOR_SHARED_NAME,
+	.id		= 1,
+	.dev		= {
+		.platform_data = &kirkwood_xor_shared_data,
+	},
+	.num_resources	= ARRAY_SIZE(kirkwood_xor1_shared_resources),
+	.resource	= kirkwood_xor1_shared_resources,
+};
+
+static struct resource kirkwood_xor10_resources[] = {
+	[0] = {
+		.start	= IRQ_KIRKWOOD_XOR_10,
+		.end	= IRQ_KIRKWOOD_XOR_10,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct mv_xor_platform_data kirkwood_xor10_data = {
+	.shared		= &kirkwood_xor1_shared,
+	.hw_id		= 0,
+	.pool_size	= PAGE_SIZE,
+};
+
+static struct platform_device kirkwood_xor10_channel = {
+	.name		= MV_XOR_NAME,
+	.id		= 2,
+	.num_resources	= ARRAY_SIZE(kirkwood_xor10_resources),
+	.resource	= kirkwood_xor10_resources,
+	.dev		= {
+		.dma_mask		= &kirkwood_xor_dmamask,
+		.coherent_dma_mask	= DMA_64BIT_MASK,
+		.platform_data		= (void *)&kirkwood_xor10_data,
+	},
+};
+
+static struct resource kirkwood_xor11_resources[] = {
+	[0] = {
+		.start	= IRQ_KIRKWOOD_XOR_11,
+		.end	= IRQ_KIRKWOOD_XOR_11,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct mv_xor_platform_data kirkwood_xor11_data = {
+	.shared		= &kirkwood_xor1_shared,
+	.hw_id		= 1,
+	.pool_size	= PAGE_SIZE,
+};
+
+static struct platform_device kirkwood_xor11_channel = {
+	.name		= MV_XOR_NAME,
+	.id		= 3,
+	.num_resources	= ARRAY_SIZE(kirkwood_xor11_resources),
+	.resource	= kirkwood_xor11_resources,
+	.dev		= {
+		.dma_mask		= &kirkwood_xor_dmamask,
+		.coherent_dma_mask	= DMA_64BIT_MASK,
+		.platform_data		= (void *)&kirkwood_xor11_data,
+	},
+};
+
+void __init kirkwood_xor1_init(void)
+{
+	platform_device_register(&kirkwood_xor1_shared);
+
+	/*
+	 * two engines can't do memset simultaneously, this limitation
+	 * satisfied by removing memset support from one of the engines.
+	 */
+	dma_cap_set(DMA_MEMCPY, kirkwood_xor10_data.cap_mask);
+	dma_cap_set(DMA_XOR, kirkwood_xor10_data.cap_mask);
+	platform_device_register(&kirkwood_xor10_channel);
+
+	dma_cap_set(DMA_MEMCPY, kirkwood_xor11_data.cap_mask);
+	dma_cap_set(DMA_MEMSET, kirkwood_xor11_data.cap_mask);
+	dma_cap_set(DMA_XOR, kirkwood_xor11_data.cap_mask);
+	platform_device_register(&kirkwood_xor11_channel);
+}
+
+
+/*****************************************************************************
+ * Time handling
+ ****************************************************************************/
+int kirkwood_tclk;
+
+int __init kirkwood_find_tclk(void)
+{
+	u32 dev, rev;
+
+	kirkwood_pcie_id(&dev, &rev);
+	if (dev == MV88F6281_DEV_ID && rev == MV88F6281_REV_A0)
+		return 200000000;
+
+	return 166666667;
+}
+
+static void kirkwood_timer_init(void)
+{
+	kirkwood_tclk = kirkwood_find_tclk();
+	orion_time_init(IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
+}
+
+struct sys_timer kirkwood_timer = {
+	.init = kirkwood_timer_init,
+};
+
+
+/*****************************************************************************
+ * General
+ ****************************************************************************/
+/*
+ * Identify device ID and revision.
+ */
+static char * __init kirkwood_id(void)
+{
+	u32 dev, rev;
+
+	kirkwood_pcie_id(&dev, &rev);
+
+	if (dev == MV88F6281_DEV_ID) {
+		if (rev == MV88F6281_REV_Z0)
+			return "MV88F6281-Z0";
+		else if (rev == MV88F6281_REV_A0)
+			return "MV88F6281-A0";
+		else
+			return "MV88F6281-Rev-Unsupported";
+	} else if (dev == MV88F6192_DEV_ID) {
+		if (rev == MV88F6192_REV_Z0)
+			return "MV88F6192-Z0";
+		else if (rev == MV88F6192_REV_A0)
+			return "MV88F6192-A0";
+		else
+			return "MV88F6192-Rev-Unsupported";
+	} else if (dev == MV88F6180_DEV_ID) {
+		if (rev == MV88F6180_REV_A0)
+			return "MV88F6180-Rev-A0";
+		else
+			return "MV88F6180-Rev-Unsupported";
+	} else {
+		return "Device-Unknown";
+	}
+}
+
+static void __init kirkwood_l2_init(void)
+{
+#ifdef CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH
+	writel(readl(L2_CONFIG_REG) | L2_WRITETHROUGH, L2_CONFIG_REG);
+	feroceon_l2_init(1);
+#else
+	writel(readl(L2_CONFIG_REG) & ~L2_WRITETHROUGH, L2_CONFIG_REG);
+	feroceon_l2_init(0);
+#endif
+}
+
+void __init kirkwood_init(void)
+{
+	printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
+		kirkwood_id(), kirkwood_tclk);
+	kirkwood_ge00_shared_data.t_clk = kirkwood_tclk;
+	kirkwood_spi_plat_data.tclk = kirkwood_tclk;
+	kirkwood_uart0_data[0].uartclk = kirkwood_tclk;
+	kirkwood_uart1_data[0].uartclk = kirkwood_tclk;
+
+	kirkwood_setup_cpu_mbus();
+
+#ifdef CONFIG_CACHE_FEROCEON_L2
+	kirkwood_l2_init();
+#endif
+}