[ARM] 4425/2: Gateway 7001 series support

This patch provides support for the Gateway 7001 AccessPoint series.

Updated to stay below the 80 char limit in uncompress.h

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Signed-off-by: Deepak Saxena <dsaxena@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

5 files changed, 185 insertions, 2 deletions

diff --git a/arch/arm/mach-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig
index 060909870b50..daaa190c1253 100644
--- a/arch/arm/mach-ixp4xx/Kconfig
+++ b/arch/arm/mach-ixp4xx/Kconfig
@@ -41,6 +41,14 @@ config ARCH_ADI_COYOTE
           Engineering Coyote Gateway Reference Platform. For more
           information on this platform, see <file:Documentation/arm/IXP4xx>.
 
+config MACH_GATEWAY7001
+        bool "Gateway 7001"
+        select PCI
+        help
+          Say 'Y' here if you want your kernel to support Gateway's
+          7001 Access Point. For more information on this platform,
+          see http://openwrt.org
+
 config ARCH_IXDP425
         bool "IXDP425"
         help
diff --git a/arch/arm/mach-ixp4xx/Makefile b/arch/arm/mach-ixp4xx/Makefile
index 3b87c47e06cf..b79ce249866a 100644
--- a/arch/arm/mach-ixp4xx/Makefile
+++ b/arch/arm/mach-ixp4xx/Makefile
@@ -13,6 +13,7 @@ obj-pci-$(CONFIG_MACH_GTWX5715)		+= gtwx5715-pci.o
 obj-pci-$(CONFIG_MACH_NSLU2)            += nslu2-pci.o
 obj-pci-$(CONFIG_MACH_NAS100D)          += nas100d-pci.o
 obj-pci-$(CONFIG_MACH_DSMG600)          += dsmg600-pci.o
+obj-pci-$(CONFIG_MACH_GATEWAY7001)      += gateway7001-pci.o
 
 obj-y   += common.o
 
@@ -24,5 +25,6 @@ obj-$(CONFIG_MACH_GTWX5715)	+= gtwx5715-setup.o
 obj-$(CONFIG_MACH_NSLU2)        += nslu2-setup.o nslu2-power.o
 obj-$(CONFIG_MACH_NAS100D)      += nas100d-setup.o nas100d-power.o
 obj-$(CONFIG_MACH_DSMG600)      += dsmg600-setup.o dsmg600-power.o
+obj-$(CONFIG_MACH_GATEWAY7001)  += gateway7001-setup.o
 
 obj-$(CONFIG_PCI)               += $(obj-pci-$(CONFIG_PCI)) common-pci.o
diff --git a/arch/arm/mach-ixp4xx/gateway7001-pci.c b/arch/arm/mach-ixp4xx/gateway7001-pci.c
new file mode 100644
index 000000000000..4f2eeb050314
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/gateway7001-pci.c
@@ -0,0 +1,64 @@
+/*
+ * arch/arch/mach-ixp4xx/gateway7001-pci.c
+ *
+ * PCI setup routines for Gateway 7001
+ *
+ * Copyright (C) 2007 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * based on coyote-pci.c:
+ *      Copyright (C) 2002 Jungo Software Technologies.
+ *      Copyright (C) 2003 MontaVista Softwrae, Inc.
+ *
+ * Maintainer: Imre Kaloz <kaloz@openwrt.org>
+ *
+ * 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/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+
+#include <asm/mach/pci.h>
+
+void __init gateway7001_pci_preinit(void)
+{
+        set_irq_type(IRQ_IXP4XX_GPIO10, IRQT_LOW);
+        set_irq_type(IRQ_IXP4XX_GPIO11, IRQT_LOW);
+
+        ixp4xx_pci_preinit();
+}
+
+static int __init gateway7001_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+        if (slot == 1)
+                return IRQ_IXP4XX_GPIO11;
+        else if (slot == 2)
+                return IRQ_IXP4XX_GPIO10;
+        else return -1;
+}
+
+struct hw_pci gateway7001_pci __initdata = {
+        .nr_controllers = 1,
+        .preinit =        gateway7001_pci_preinit,
+        .swizzle =        pci_std_swizzle,
+        .setup =          ixp4xx_setup,
+        .scan =           ixp4xx_scan_bus,
+        .map_irq =        gateway7001_map_irq,
+};
+
+int __init gateway7001_pci_init(void)
+{
+        if (machine_is_gateway7001())
+                pci_common_init(&gateway7001_pci);
+        return 0;
+}
+
+subsys_initcall(gateway7001_pci_init);
diff --git a/arch/arm/mach-ixp4xx/gateway7001-setup.c b/arch/arm/mach-ixp4xx/gateway7001-setup.c
new file mode 100644
index 000000000000..37876832e141
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/gateway7001-setup.c
@@ -0,0 +1,108 @@
+/*
+ * arch/arm/mach-ixp4xx/gateway7001-setup.c
+ *
+ * Board setup for the Gateway 7001 board
+ *
+ * Copyright (C) 2007 Imre Kaloz <kaloz@openwrt.org>
+ *
+ * based on coyote-setup.c:
+ *      Copyright (C) 2003-2005 MontaVista Software, Inc.
+ *
+ * Author: Imre Kaloz <Kaloz@openwrt.org>
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/serial_8250.h>
+#include <linux/slab.h>
+
+#include <asm/types.h>
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+
+static struct flash_platform_data gateway7001_flash_data = {
+        .map_name       = "cfi_probe",
+        .width          = 2,
+};
+
+static struct resource gateway7001_flash_resource = {
+        .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device gateway7001_flash = {
+        .name           = "IXP4XX-Flash",
+        .id             = 0,
+        .dev            = {
+                .platform_data = &gateway7001_flash_data,
+        },
+        .num_resources  = 1,
+        .resource       = &gateway7001_flash_resource,
+};
+
+static struct resource gateway7001_uart_resource = {
+        .start  = IXP4XX_UART2_BASE_PHYS,
+        .end    = IXP4XX_UART2_BASE_PHYS + 0x0fff,
+        .flags  = IORESOURCE_MEM,
+};
+
+static struct plat_serial8250_port gateway7001_uart_data[] = {
+        {
+                .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,
+        },
+        { },
+};
+
+static struct platform_device gateway7001_uart = {
+        .name           = "serial8250",
+        .id             = PLAT8250_DEV_PLATFORM,
+        .dev                    = {
+                .platform_data  = gateway7001_uart_data,
+        },
+        .num_resources  = 1,
+        .resource       = &gateway7001_uart_resource,
+};
+
+static struct platform_device *gateway7001_devices[] __initdata = {
+        &gateway7001_flash,
+        &gateway7001_uart
+};
+
+static void __init gateway7001_init(void)
+{
+        ixp4xx_sys_init();
+
+        gateway7001_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
+        gateway7001_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_32M - 1;
+
+        *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
+        *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
+
+        platform_add_devices(gateway7001_devices, ARRAY_SIZE(gateway7001_devices));
+}
+
+#ifdef CONFIG_MACH_GATEWAY7001
+MACHINE_START(GATEWAY7001, "Gateway 7001 AP")
+        /* Maintainer: Imre Kaloz <kaloz@openwrt.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   = gateway7001_init,
+MACHINE_END
+#endif
diff --git a/include/asm-arm/arch-ixp4xx/uncompress.h b/include/asm-arm/arch-ixp4xx/uncompress.h
index 09ae6c91be60..bf7a7882bf7c 100644
--- a/include/asm-arm/arch-ixp4xx/uncompress.h
+++ b/include/asm-arm/arch-ixp4xx/uncompress.h
@@ -38,9 +38,10 @@ static void flush(void)
 static __inline__ void __arch_decomp_setup(unsigned long arch_id)
 {
         /*
-         * Coyote and gtwx5715 only have UART2 connected
+         * Some boards are using UART2 as console
          */
-        if (machine_is_adi_coyote() || machine_is_gtwx5715())
+        if (machine_is_adi_coyote() || machine_is_gtwx5715() ||
+                         machine_is_gateway7001())
                 uart_base = (volatile u32*) IXP4XX_UART2_BASE_PHYS;
         else
                 uart_base = (volatile u32*) IXP4XX_UART1_BASE_PHYS;