[PATCH 1/2] ixp4xx: base support for Arcom Vulcan
Marc Zyngier
maz at misterjones.org
Sat Apr 10 16:32:38 EDT 2010
This patch adds some basic support for the Arcom Vulcan (ixp425 based).
Supported devices include:
- XR16L551 serial ports
- External watchdog
- Flash
- SRAM
- 1-wire id
Signed-off-by: Marc Zyngier <maz at misterjones.org>
Cc: Imre Kaloz <kaloz at openwrt.org>
Cc: Krzysztof Halasa <khc at pm.waw.pl>
---
arch/arm/mach-ixp4xx/Kconfig | 8 +
arch/arm/mach-ixp4xx/Makefile | 1 +
arch/arm/mach-ixp4xx/vulcan-setup.c | 246 +++++++++++++++++++++++++++++++++++
3 files changed, 255 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-ixp4xx/vulcan-setup.c
diff --git a/arch/arm/mach-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig
index 9e5070d..6f991c5 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 47d1f60..ab39693 100644
--- a/arch/arm/mach-ixp4xx/Makefile
+++ b/arch/arm/mach-ixp4xx/Makefile
@@ -31,6 +31,7 @@ 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/vulcan-setup.c b/arch/arm/mach-ixp4xx/vulcan-setup.c
new file mode 100644
index 0000000..465cc5c
--- /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 at misterjones.org>
+ *
+ * based on fsg-setup.c:
+ * Copyright (C) 2008 Rod Whitby <rod at 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 at 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
--
1.7.0.4
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