Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / arch / arm / mach-iop32x / glantank.c
diff --git a/kernel/arch/arm/mach-iop32x/glantank.c b/kernel/arch/arm/mach-iop32x/glantank.c
new file mode 100644 (file)
index 0000000..547b234
--- /dev/null
@@ -0,0 +1,213 @@
+/*
+ * arch/arm/mach-iop32x/glantank.c
+ *
+ * Board support code for the GLAN Tank.
+ *
+ * Copyright (C) 2006, 2007 Martin Michlmayr <tbm@cyrius.com>
+ * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/f75375s.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/pm.h>
+#include <linux/string.h>
+#include <linux/serial_core.h>
+#include <linux/serial_8250.h>
+#include <linux/mtd/physmap.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <mach/hardware.h>
+#include <asm/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/pci.h>
+#include <asm/mach/time.h>
+#include <asm/mach-types.h>
+#include <asm/page.h>
+#include <mach/time.h>
+#include "gpio-iop32x.h"
+
+/*
+ * GLAN Tank timer tick configuration.
+ */
+static void __init glantank_timer_init(void)
+{
+       /* 33.333 MHz crystal.  */
+       iop_init_time(200000000);
+}
+
+
+/*
+ * GLAN Tank I/O.
+ */
+static struct map_desc glantank_io_desc[] __initdata = {
+       {       /* on-board devices */
+               .virtual        = GLANTANK_UART,
+               .pfn            = __phys_to_pfn(GLANTANK_UART),
+               .length         = 0x00100000,
+               .type           = MT_DEVICE
+       },
+};
+
+void __init glantank_map_io(void)
+{
+       iop3xx_map_io();
+       iotable_init(glantank_io_desc, ARRAY_SIZE(glantank_io_desc));
+}
+
+
+/*
+ * GLAN Tank PCI.
+ */
+#define INTA   IRQ_IOP32X_XINT0
+#define INTB   IRQ_IOP32X_XINT1
+#define INTC   IRQ_IOP32X_XINT2
+#define INTD   IRQ_IOP32X_XINT3
+
+static int __init
+glantank_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+       static int pci_irq_table[][4] = {
+               /*
+                * PCI IDSEL/INTPIN->INTLINE
+                * A       B       C       D
+                */
+               {INTD, INTD, INTD, INTD}, /* UART (8250) */
+               {INTA, INTA, INTA, INTA}, /* Ethernet (E1000) */
+               {INTB, INTB, INTB, INTB}, /* IDE (AEC6280R) */
+               {INTC, INTC, INTC, INTC}, /* USB (NEC) */
+       };
+
+       BUG_ON(pin < 1 || pin > 4);
+
+       return pci_irq_table[slot % 4][pin - 1];
+}
+
+static struct hw_pci glantank_pci __initdata = {
+       .nr_controllers = 1,
+       .ops            = &iop3xx_ops,
+       .setup          = iop3xx_pci_setup,
+       .preinit        = iop3xx_pci_preinit,
+       .map_irq        = glantank_pci_map_irq,
+};
+
+static int __init glantank_pci_init(void)
+{
+       if (machine_is_glantank())
+               pci_common_init(&glantank_pci);
+
+       return 0;
+}
+
+subsys_initcall(glantank_pci_init);
+
+
+/*
+ * GLAN Tank machine initialization.
+ */
+static struct physmap_flash_data glantank_flash_data = {
+       .width          = 2,
+};
+
+static struct resource glantank_flash_resource = {
+       .start          = 0xf0000000,
+       .end            = 0xf007ffff,
+       .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device glantank_flash_device = {
+       .name           = "physmap-flash",
+       .id             = 0,
+       .dev            = {
+               .platform_data  = &glantank_flash_data,
+       },
+       .num_resources  = 1,
+       .resource       = &glantank_flash_resource,
+};
+
+static struct plat_serial8250_port glantank_serial_port[] = {
+       {
+               .mapbase        = GLANTANK_UART,
+               .membase        = (char *)GLANTANK_UART,
+               .irq            = IRQ_IOP32X_XINT3,
+               .flags          = UPF_SKIP_TEST,
+               .iotype         = UPIO_MEM,
+               .regshift       = 0,
+               .uartclk        = 1843200,
+       },
+       { },
+};
+
+static struct resource glantank_uart_resource = {
+       .start          = GLANTANK_UART,
+       .end            = GLANTANK_UART + 7,
+       .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device glantank_serial_device = {
+       .name           = "serial8250",
+       .id             = PLAT8250_DEV_PLATFORM,
+       .dev            = {
+               .platform_data          = glantank_serial_port,
+       },
+       .num_resources  = 1,
+       .resource       = &glantank_uart_resource,
+};
+
+static struct f75375s_platform_data glantank_f75375s = {
+       .pwm            = { 255, 255 },
+       .pwm_enable     = { 0, 0 },
+};
+
+static struct i2c_board_info __initdata glantank_i2c_devices[] = {
+       {
+               I2C_BOARD_INFO("rs5c372a", 0x32),
+       },
+       {
+               I2C_BOARD_INFO("f75375", 0x2e),
+               .platform_data = &glantank_f75375s,
+       },
+};
+
+static void glantank_power_off(void)
+{
+       __raw_writeb(0x01, IOMEM(0xfe8d0004));
+
+       while (1)
+               ;
+}
+
+static void __init glantank_init_machine(void)
+{
+       register_iop32x_gpio();
+       platform_device_register(&iop3xx_i2c0_device);
+       platform_device_register(&iop3xx_i2c1_device);
+       platform_device_register(&glantank_flash_device);
+       platform_device_register(&glantank_serial_device);
+       platform_device_register(&iop3xx_dma_0_channel);
+       platform_device_register(&iop3xx_dma_1_channel);
+
+       i2c_register_board_info(0, glantank_i2c_devices,
+               ARRAY_SIZE(glantank_i2c_devices));
+
+       pm_power_off = glantank_power_off;
+}
+
+MACHINE_START(GLANTANK, "GLAN Tank")
+       /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
+       .atag_offset    = 0x100,
+       .map_io         = glantank_map_io,
+       .init_irq       = iop32x_init_irq,
+       .init_time      = glantank_timer_init,
+       .init_machine   = glantank_init_machine,
+       .restart        = iop3xx_restart,
+MACHINE_END