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-rw-r--r--arch/arm/mach-ks8695/board-acs5k.c232
1 files changed, 232 insertions, 0 deletions
diff --git a/arch/arm/mach-ks8695/board-acs5k.c b/arch/arm/mach-ks8695/board-acs5k.c
new file mode 100644
index 00000000000..255502ddd87
--- /dev/null
+++ b/arch/arm/mach-ks8695/board-acs5k.c
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+/*
+ * arch/arm/mach-ks8695/board-acs5k.c
+ *
+ * Brivo Systems LLC, ACS-5000 Master Board
+ *
+ * Copyright 2008 Simtec Electronics
+ * Daniel Silverstone <dsilvers@simtec.co.uk>
+ *
+ * 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/gpio.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <linux/i2c-gpio.h>
+#include <linux/i2c/pca953x.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/mach-types.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/devices.h>
+#include <mach/gpio-ks8695.h>
+
+#include "generic.h"
+
+static struct i2c_gpio_platform_data acs5k_i2c_device_platdata = {
+ .sda_pin = 4,
+ .scl_pin = 5,
+ .udelay = 10,
+};
+
+static struct platform_device acs5k_i2c_device = {
+ .name = "i2c-gpio",
+ .id = -1,
+ .num_resources = 0,
+ .resource = NULL,
+ .dev = {
+ .platform_data = &acs5k_i2c_device_platdata,
+ },
+};
+
+static int acs5k_pca9555_setup(struct i2c_client *client,
+ unsigned gpio_base, unsigned ngpio,
+ void *context)
+{
+ static int acs5k_gpio_value[] = {
+ -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, -1, 0, 1, 0, -1, -1
+ };
+ int n;
+
+ for (n = 0; n < ARRAY_SIZE(acs5k_gpio_value); ++n) {
+ gpio_request(gpio_base + n, "ACS-5000 GPIO Expander");
+ if (acs5k_gpio_value[n] < 0)
+ gpio_direction_input(gpio_base + n);
+ else
+ gpio_direction_output(gpio_base + n,
+ acs5k_gpio_value[n]);
+ gpio_export(gpio_base + n, 0); /* Export, direction locked down */
+ }
+
+ return 0;
+}
+
+static struct pca953x_platform_data acs5k_i2c_pca9555_platdata = {
+ .gpio_base = 16, /* Start directly after the CPU's GPIO */
+ .invert = 0, /* Do not invert */
+ .setup = acs5k_pca9555_setup,
+};
+
+static struct i2c_board_info acs5k_i2c_devs[] __initdata = {
+ {
+ I2C_BOARD_INFO("pcf8563", 0x51),
+ },
+ {
+ I2C_BOARD_INFO("pca9555", 0x20),
+ .platform_data = &acs5k_i2c_pca9555_platdata,
+ },
+};
+
+static void __devinit acs5k_i2c_init(void)
+{
+ /* The gpio interface */
+ platform_device_register(&acs5k_i2c_device);
+ /* I2C devices */
+ i2c_register_board_info(0, acs5k_i2c_devs,
+ ARRAY_SIZE(acs5k_i2c_devs));
+}
+
+static struct mtd_partition acs5k_nor_partitions[] = {
+ [0] = {
+ .name = "Boot Agent and config",
+ .size = SZ_256K,
+ .offset = 0,
+ .mask_flags = MTD_WRITEABLE,
+ },
+ [1] = {
+ .name = "Kernel",
+ .size = SZ_1M,
+ .offset = SZ_256K,
+ },
+ [2] = {
+ .name = "SquashFS1",
+ .size = SZ_2M,
+ .offset = SZ_256K + SZ_1M,
+ },
+ [3] = {
+ .name = "SquashFS2",
+ .size = SZ_4M + SZ_2M,
+ .offset = SZ_256K + SZ_1M + SZ_2M,
+ },
+ [4] = {
+ .name = "Data",
+ .size = SZ_16M + SZ_4M + SZ_2M + SZ_512K, /* 22.5 MB */
+ .offset = SZ_256K + SZ_8M + SZ_1M,
+ }
+};
+
+static struct physmap_flash_data acs5k_nor_pdata = {
+ .width = 4,
+ .nr_parts = ARRAY_SIZE(acs5k_nor_partitions),
+ .parts = acs5k_nor_partitions,
+};
+
+static struct resource acs5k_nor_resource[] = {
+ [0] = {
+ .start = SZ_32M, /* We expect the bootloader to map
+ * the flash here.
+ */
+ .end = SZ_32M + SZ_16M - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = SZ_32M + SZ_16M,
+ .end = SZ_32M + SZ_32M - SZ_256K - 1,
+ .flags = IORESOURCE_MEM,
+ }
+};
+
+static struct platform_device acs5k_device_nor = {
+ .name = "physmap-flash",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(acs5k_nor_resource),
+ .resource = acs5k_nor_resource,
+ .dev = {
+ .platform_data = &acs5k_nor_pdata,
+ },
+};
+
+static void __init acs5k_register_nor(void)
+{
+ int ret;
+
+ if (acs5k_nor_partitions[0].mask_flags == 0)
+ printk(KERN_WARNING "Warning: Unprotecting bootloader and configuration partition\n");
+
+ ret = platform_device_register(&acs5k_device_nor);
+ if (ret < 0)
+ printk(KERN_ERR "failed to register physmap-flash device\n");
+}
+
+static int __init acs5k_protection_setup(char *s)
+{
+ /* We can't allocate anything here but we should be able
+ * to trivially parse s and decide if we can protect the
+ * bootloader partition or not
+ */
+ if (strcmp(s, "no") == 0)
+ acs5k_nor_partitions[0].mask_flags = 0;
+
+ return 1;
+}
+
+__setup("protect_bootloader=", acs5k_protection_setup);
+
+static void __init acs5k_init_gpio(void)
+{
+ int i;
+
+ ks8695_register_gpios();
+ for (i = 0; i < 4; ++i)
+ gpio_request(i, "ACS5K IRQ");
+ gpio_request(7, "ACS5K KS_FRDY");
+ for (i = 8; i < 16; ++i)
+ gpio_request(i, "ACS5K Unused");
+
+ gpio_request(3, "ACS5K CAN Control");
+ gpio_request(6, "ACS5K Heartbeat");
+ gpio_direction_output(3, 1); /* Default CAN_RESET high */
+ gpio_direction_output(6, 0); /* Default KS8695_ACTIVE low */
+ gpio_export(3, 0); /* export CAN_RESET as output only */
+ gpio_export(6, 0); /* export KS8695_ACTIVE as output only */
+}
+
+static void __init acs5k_init(void)
+{
+ acs5k_init_gpio();
+
+ /* Network device */
+ ks8695_add_device_lan(); /* eth0 = LAN */
+ ks8695_add_device_wan(); /* ethX = WAN */
+
+ /* NOR devices */
+ acs5k_register_nor();
+
+ /* I2C bus */
+ acs5k_i2c_init();
+}
+
+MACHINE_START(ACS5K, "Brivo Systems LLC ACS-5000 Master board")
+ /* Maintainer: Simtec Electronics. */
+ .atag_offset = 0x100,
+ .map_io = ks8695_map_io,
+ .init_irq = ks8695_init_irq,
+ .init_machine = acs5k_init,
+ .timer = &ks8695_timer,
+ .restart = ks8695_restart,
+MACHINE_END