6 files changed, 334 insertions, 3 deletions

diff --git a/arch/arm/mach-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig
index 9e5070da17ae..6f991c5ae863 100644
--- a/arch/arm/mach-ixp4xx/Kconfig
+++ b/arch/arm/mach-ixp4xx/Kconfig
@@ -140,6 +140,14 @@ config MACH_FSG
           FSG-3 device. For more information on this platform,
           see http://www.nslu2-linux.org/wiki/FSG3/HomePage
 
+config MACH_ARCOM_VULCAN
+        bool
+        prompt "Arcom/Eurotech Vulcan"
+        select PCI
+        help
+          Say 'Y' here if you want your kernel to support Arcom's
+          Vulcan board.
+
 #
 # Certain registers and IRQs are only enabled if supporting IXP465 CPUs
 #
diff --git a/arch/arm/mach-ixp4xx/Makefile b/arch/arm/mach-ixp4xx/Makefile
index 47d1f60d23fa..d807fc367dd3 100644
--- a/arch/arm/mach-ixp4xx/Makefile
+++ b/arch/arm/mach-ixp4xx/Makefile
@@ -16,6 +16,7 @@ obj-pci-$(CONFIG_MACH_DSMG600)		+= dsmg600-pci.o
 obj-pci-$(CONFIG_MACH_GATEWAY7001)      += gateway7001-pci.o
 obj-pci-$(CONFIG_MACH_WG302V2)          += wg302v2-pci.o
 obj-pci-$(CONFIG_MACH_FSG)              += fsg-pci.o
+obj-pci-$(CONFIG_MACH_ARCOM_VULCAN)     += vulcan-pci.o
 
 obj-y   += common.o
 
@@ -31,6 +32,7 @@ obj-$(CONFIG_MACH_GATEWAY7001)	+= gateway7001-setup.o
 obj-$(CONFIG_MACH_WG302V2)      += wg302v2-setup.o
 obj-$(CONFIG_MACH_FSG)          += fsg-setup.o
 obj-$(CONFIG_MACH_GORAMO_MLR)   += goramo_mlr.o
+obj-$(CONFIG_MACH_ARCOM_VULCAN) += vulcan-setup.o
 
 obj-$(CONFIG_PCI)               += $(obj-pci-$(CONFIG_PCI)) common-pci.o
 obj-$(CONFIG_IXP4XX_QMGR)       += ixp4xx_qmgr.o
diff --git a/arch/arm/mach-ixp4xx/include/mach/debug-macro.S b/arch/arm/mach-ixp4xx/include/mach/debug-macro.S
index 893873eb2a0d..3fc66d6d00a0 100644
--- a/arch/arm/mach-ixp4xx/include/mach/debug-macro.S
+++ b/arch/arm/mach-ixp4xx/include/mach/debug-macro.S
@@ -16,8 +16,10 @@
                 moveq   \rx, #0xc8000000
                 movne   \rx, #0xff000000
                 orrne   \rx, \rx, #0x00b00000
+#ifdef __ARMEB__
                 add     \rx,\rx,#3              @ Uart regs are at off set of 3 if
                                                 @ byte writes used - Big Endian.
+#endif
                 .endm
 
 #define UART_SHIFT      2
diff --git a/arch/arm/mach-ixp4xx/include/mach/io.h b/arch/arm/mach-ixp4xx/include/mach/io.h
index 6ea7e2fb2701..de274a1f19d7 100644
--- a/arch/arm/mach-ixp4xx/include/mach/io.h
+++ b/arch/arm/mach-ixp4xx/include/mach/io.h
@@ -353,7 +353,7 @@ static inline unsigned int ioread8(const void __iomem *addr)
                 return (unsigned int)inb(port & PIO_MASK);
         else
 #ifndef CONFIG_IXP4XX_INDIRECT_PCI
-                return (unsigned int)__raw_readb(port);
+                return (unsigned int)__raw_readb(addr);
 #else
                 return (unsigned int)__indirect_readb(addr);
 #endif
@@ -381,7 +381,7 @@ static inline unsigned int ioread16(const void __iomem *addr)
                 return  (unsigned int)inw(port & PIO_MASK);
         else
 #ifndef CONFIG_IXP4XX_INDIRECT_PCI
-                return le16_to_cpu(__raw_readw((u32)port));
+                return le16_to_cpu((__force __le16)__raw_readw(addr));
 #else
                 return (unsigned int)__indirect_readw(addr);
 #endif
@@ -440,7 +440,7 @@ static inline void iowrite8(u8 value, void __iomem *addr)
                 outb(value, port & PIO_MASK);
         else
 #ifndef CONFIG_IXP4XX_INDIRECT_PCI
-                __raw_writeb(value, port);
+                __raw_writeb(value, addr);
 #else
                 __indirect_writeb(value, addr);
 #endif
diff --git a/arch/arm/mach-ixp4xx/vulcan-pci.c b/arch/arm/mach-ixp4xx/vulcan-pci.c
new file mode 100644
index 000000000000..f3111c6840ef
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/vulcan-pci.c
@@ -0,0 +1,73 @@
+/*
+ * arch/arch/mach-ixp4xx/vulcan-pci.c
+ *
+ * Vulcan board-level PCI initialization
+ *
+ * Copyright (C) 2010 Marc Zyngier <maz@misterjones.org>
+ *
+ * based on ixdp425-pci.c:
+ *      Copyright (C) 2002 Intel Corporation.
+ *      Copyright (C) 2003-2004 MontaVista Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <asm/mach/pci.h>
+#include <asm/mach-types.h>
+
+/* PCI controller GPIO to IRQ pin mappings */
+#define INTA    2
+#define INTB    3
+
+void __init vulcan_pci_preinit(void)
+{
+#ifndef CONFIG_IXP4XX_INDIRECT_PCI
+        /*
+         * Cardbus bridge wants way more than the SoC can actually offer,
+         * and leaves the whole PCI bus in a mess. Artificially limit it
+         * to 8MB per region. Of course indirect mode doesn't have this
+         * limitation...
+         */
+        pci_cardbus_mem_size = SZ_8M;
+        pr_info("Vulcan PCI: limiting CardBus memory size to %dMB\n",
+                (int)(pci_cardbus_mem_size >> 20));
+#endif
+        set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
+        set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
+        ixp4xx_pci_preinit();
+}
+
+static int __init vulcan_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+        if (slot == 1)
+                return IXP4XX_GPIO_IRQ(INTA);
+
+        if (slot == 2)
+                return IXP4XX_GPIO_IRQ(INTB);
+
+        return -1;
+}
+
+struct hw_pci vulcan_pci __initdata = {
+        .nr_controllers = 1,
+        .preinit        = vulcan_pci_preinit,
+        .swizzle        = pci_std_swizzle,
+        .setup          = ixp4xx_setup,
+        .scan           = ixp4xx_scan_bus,
+        .map_irq        = vulcan_map_irq,
+};
+
+int __init vulcan_pci_init(void)
+{
+        if (machine_is_arcom_vulcan())
+                pci_common_init(&vulcan_pci);
+        return 0;
+}
+
+subsys_initcall(vulcan_pci_init);
diff --git a/arch/arm/mach-ixp4xx/vulcan-setup.c b/arch/arm/mach-ixp4xx/vulcan-setup.c
new file mode 100644
index 000000000000..465cc5cce687
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/vulcan-setup.c
@@ -0,0 +1,246 @@
+/*
+ * arch/arm/mach-ixp4xx/vulcan-setup.c
+ *
+ * Arcom/Eurotech Vulcan board-setup
+ *
+ * Copyright (C) 2010 Marc Zyngier <maz@misterjones.org>
+ *
+ * based on fsg-setup.c:
+ *      Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
+ */
+
+#include <linux/if_ether.h>
+#include <linux/irq.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <linux/io.h>
+#include <linux/w1-gpio.h>
+#include <linux/mtd/plat-ram.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+
+static struct flash_platform_data vulcan_flash_data = {
+        .map_name       = "cfi_probe",
+        .width          = 2,
+};
+
+static struct resource vulcan_flash_resource = {
+        .flags                  = IORESOURCE_MEM,
+};
+
+static struct platform_device vulcan_flash = {
+        .name                   = "IXP4XX-Flash",
+        .id                     = 0,
+        .dev = {
+                .platform_data  = &vulcan_flash_data,
+        },
+        .resource               = &vulcan_flash_resource,
+        .num_resources          = 1,
+};
+
+static struct platdata_mtd_ram vulcan_sram_data = {
+        .mapname        = "Vulcan SRAM",
+        .bankwidth      = 1,
+};
+
+static struct resource vulcan_sram_resource = {
+        .flags                  = IORESOURCE_MEM,
+};
+
+static struct platform_device vulcan_sram = {
+        .name                   = "mtd-ram",
+        .id                     = 0,
+        .dev = {
+                .platform_data  = &vulcan_sram_data,
+        },
+        .resource               = &vulcan_sram_resource,
+        .num_resources          = 1,
+};
+
+static struct resource vulcan_uart_resources[] = {
+        [0] = {
+                .start          = IXP4XX_UART1_BASE_PHYS,
+                .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
+                .flags          = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start          = IXP4XX_UART2_BASE_PHYS,
+                .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
+                .flags          = IORESOURCE_MEM,
+        },
+        [2] = {
+                .flags          = IORESOURCE_MEM,
+        },
+};
+
+static struct plat_serial8250_port vulcan_uart_data[] = {
+        [0] = {
+                .mapbase        = IXP4XX_UART1_BASE_PHYS,
+                .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
+                .irq            = IRQ_IXP4XX_UART1,
+                .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+                .iotype         = UPIO_MEM,
+                .regshift       = 2,
+                .uartclk        = IXP4XX_UART_XTAL,
+        },
+        [1] = {
+                .mapbase        = IXP4XX_UART2_BASE_PHYS,
+                .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
+                .irq            = IRQ_IXP4XX_UART2,
+                .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+                .iotype         = UPIO_MEM,
+                .regshift       = 2,
+                .uartclk        = IXP4XX_UART_XTAL,
+        },
+        [2] = {
+                .irq            = IXP4XX_GPIO_IRQ(4),
+                .irqflags       = IRQF_TRIGGER_LOW,
+                .flags          = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+                .iotype         = UPIO_MEM,
+                .uartclk        = 1843200,
+        },
+        [3] = {
+                .irq            = IXP4XX_GPIO_IRQ(4),
+                .irqflags       = IRQF_TRIGGER_LOW,
+                .flags          = UPF_IOREMAP | UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+                .iotype         = UPIO_MEM,
+                .uartclk        = 1843200,
+        },
+        { }
+};
+
+static struct platform_device vulcan_uart = {
+        .name                   = "serial8250",
+        .id                     = PLAT8250_DEV_PLATFORM,
+        .dev = {
+                .platform_data  = vulcan_uart_data,
+        },
+        .resource               = vulcan_uart_resources,
+        .num_resources          = ARRAY_SIZE(vulcan_uart_resources),
+};
+
+static struct eth_plat_info vulcan_plat_eth[] = {
+        [0] = {
+                .phy            = 0,
+                .rxq            = 3,
+                .txreadyq       = 20,
+        },
+        [1] = {
+                .phy            = 1,
+                .rxq            = 4,
+                .txreadyq       = 21,
+        },
+};
+
+static struct platform_device vulcan_eth[] = {
+        [0] = {
+                .name                   = "ixp4xx_eth",
+                .id                     = IXP4XX_ETH_NPEB,
+                .dev = {
+                        .platform_data  = &vulcan_plat_eth[0],
+                },
+        },
+        [1] = {
+                .name                   = "ixp4xx_eth",
+                .id                     = IXP4XX_ETH_NPEC,
+                .dev = {
+                        .platform_data  = &vulcan_plat_eth[1],
+                },
+        },
+};
+
+static struct resource vulcan_max6369_resource = {
+        .flags                  = IORESOURCE_MEM,
+};
+
+static struct platform_device vulcan_max6369 = {
+        .name                   = "max6369_wdt",
+        .id                     = -1,
+        .resource               = &vulcan_max6369_resource,
+        .num_resources          = 1,
+};
+
+static struct w1_gpio_platform_data vulcan_w1_gpio_pdata = {
+        .pin                    = 14,
+};
+
+static struct platform_device vulcan_w1_gpio = {
+        .name                   = "w1-gpio",
+        .id                     = 0,
+        .dev                    = {
+                .platform_data  = &vulcan_w1_gpio_pdata,
+        },
+};
+
+static struct platform_device *vulcan_devices[] __initdata = {
+        &vulcan_uart,
+        &vulcan_flash,
+        &vulcan_sram,
+        &vulcan_max6369,
+        &vulcan_eth[0],
+        &vulcan_eth[1],
+        &vulcan_w1_gpio,
+};
+
+static void __init vulcan_init(void)
+{
+        ixp4xx_sys_init();
+
+        /* Flash is spread over both CS0 and CS1 */
+        vulcan_flash_resource.start      = IXP4XX_EXP_BUS_BASE(0);
+        vulcan_flash_resource.end        = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
+        *IXP4XX_EXP_CS0 = IXP4XX_EXP_BUS_CS_EN          |
+                          IXP4XX_EXP_BUS_STROBE_T(3)    |
+                          IXP4XX_EXP_BUS_SIZE(0xF)      |
+                          IXP4XX_EXP_BUS_BYTE_RD16      |
+                          IXP4XX_EXP_BUS_WR_EN;
+        *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
+
+        /* SRAM on CS2, (256kB, 8bit, writable) */
+        vulcan_sram_resource.start      = IXP4XX_EXP_BUS_BASE(2);
+        vulcan_sram_resource.end        = IXP4XX_EXP_BUS_BASE(2) + SZ_256K - 1;
+        *IXP4XX_EXP_CS2 = IXP4XX_EXP_BUS_CS_EN          |
+                          IXP4XX_EXP_BUS_STROBE_T(1)    |
+                          IXP4XX_EXP_BUS_HOLD_T(2)      |
+                          IXP4XX_EXP_BUS_SIZE(9)        |
+                          IXP4XX_EXP_BUS_SPLT_EN        |
+                          IXP4XX_EXP_BUS_WR_EN          |
+                          IXP4XX_EXP_BUS_BYTE_EN;
+
+        /* XR16L2551 on CS3 (Moto style, 512 bytes, 8bits, writable) */
+        vulcan_uart_resources[2].start  = IXP4XX_EXP_BUS_BASE(3);
+        vulcan_uart_resources[2].end    = IXP4XX_EXP_BUS_BASE(3) + 16 - 1;
+        vulcan_uart_data[2].mapbase     = vulcan_uart_resources[2].start;
+        vulcan_uart_data[3].mapbase     = vulcan_uart_data[2].mapbase + 8;
+        *IXP4XX_EXP_CS3 = IXP4XX_EXP_BUS_CS_EN          |
+                          IXP4XX_EXP_BUS_STROBE_T(3)    |
+                          IXP4XX_EXP_BUS_CYCLES(IXP4XX_EXP_BUS_CYCLES_MOTOROLA)|
+                          IXP4XX_EXP_BUS_WR_EN          |
+                          IXP4XX_EXP_BUS_BYTE_EN;
+
+        /* GPIOS on CS4 (512 bytes, 8bits, writable) */
+        *IXP4XX_EXP_CS4 = IXP4XX_EXP_BUS_CS_EN          |
+                          IXP4XX_EXP_BUS_WR_EN          |
+                          IXP4XX_EXP_BUS_BYTE_EN;
+
+        /* max6369 on CS5 (512 bytes, 8bits, writable) */
+        vulcan_max6369_resource.start   = IXP4XX_EXP_BUS_BASE(5);
+        vulcan_max6369_resource.end     = IXP4XX_EXP_BUS_BASE(5);
+        *IXP4XX_EXP_CS5 = IXP4XX_EXP_BUS_CS_EN          |
+                          IXP4XX_EXP_BUS_WR_EN          |
+                          IXP4XX_EXP_BUS_BYTE_EN;
+
+        platform_add_devices(vulcan_devices, ARRAY_SIZE(vulcan_devices));
+}
+
+MACHINE_START(ARCOM_VULCAN, "Arcom/Eurotech Vulcan")
+        /* Maintainer: Marc Zyngier <maz@misterjones.org> */
+        .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
+        .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
+        .map_io         = ixp4xx_map_io,
+        .init_irq       = ixp4xx_init_irq,
+        .timer          = &ixp4xx_timer,
+        .boot_params    = 0x0100,
+        .init_machine   = vulcan_init,
+MACHINE_END