[AVR32] Board code for ATNGW100

Add board code and defconfig for the ATNGW100 Network Gateway kit.
For more information about this board, see

http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4102

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

3 files changed, 220 insertions, 0 deletions

diff --git a/arch/avr32/boards/atngw100/Makefile b/arch/avr32/boards/atngw100/Makefile
new file mode 100644
index 000000000000..c740aa116755
--- /dev/null
+++ b/arch/avr32/boards/atngw100/Makefile
@@ -0,0 +1 @@
+obj-y                           += setup.o flash.o
diff --git a/arch/avr32/boards/atngw100/flash.c b/arch/avr32/boards/atngw100/flash.c
new file mode 100644
index 000000000000..f9b32a8eab9b
--- /dev/null
+++ b/arch/avr32/boards/atngw100/flash.c
@@ -0,0 +1,95 @@
+/*
+ * ATNGW100 board-specific flash initialization
+ *
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * 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/init.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+
+#include <asm/arch/smc.h>
+
+static struct smc_config flash_config __initdata = {
+        .ncs_read_setup         = 0,
+        .nrd_setup              = 40,
+        .ncs_write_setup        = 0,
+        .nwe_setup              = 10,
+
+        .ncs_read_pulse         = 80,
+        .nrd_pulse              = 40,
+        .ncs_write_pulse        = 65,
+        .nwe_pulse              = 55,
+
+        .read_cycle             = 120,
+        .write_cycle            = 120,
+
+        .bus_width              = 2,
+        .nrd_controlled         = 1,
+        .nwe_controlled         = 1,
+        .byte_write             = 1,
+};
+
+static struct mtd_partition flash_parts[] = {
+        {
+                .name           = "u-boot",
+                .offset         = 0x00000000,
+                .size           = 0x00020000,           /* 128 KiB */
+                .mask_flags     = MTD_WRITEABLE,
+        },
+        {
+                .name           = "root",
+                .offset         = 0x00020000,
+                .size           = 0x007d0000,
+        },
+        {
+                .name           = "env",
+                .offset         = 0x007f0000,
+                .size           = 0x00010000,
+                .mask_flags     = MTD_WRITEABLE,
+        },
+};
+
+static struct physmap_flash_data flash_data = {
+        .width          = 2,
+        .nr_parts       = ARRAY_SIZE(flash_parts),
+        .parts          = flash_parts,
+};
+
+static struct resource flash_resource = {
+        .start          = 0x00000000,
+        .end            = 0x007fffff,
+        .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device flash_device = {
+        .name           = "physmap-flash",
+        .id             = 0,
+        .resource       = &flash_resource,
+        .num_resources  = 1,
+        .dev            = {
+                .platform_data = &flash_data,
+        },
+};
+
+/* This needs to be called after the SMC has been initialized */
+static int __init atngw100_flash_init(void)
+{
+        int ret;
+
+        ret = smc_set_configuration(0, &flash_config);
+        if (ret < 0) {
+                printk(KERN_ERR "atngw100: failed to set NOR flash timing\n");
+                return ret;
+        }
+
+        platform_device_register(&flash_device);
+
+        return 0;
+}
+device_initcall(atngw100_flash_init);
diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c
new file mode 100644
index 000000000000..9bc37d4f6687
--- /dev/null
+++ b/arch/avr32/boards/atngw100/setup.c
@@ -0,0 +1,124 @@
+/*
+ * Board-specific setup code for the ATNGW100 Network Gateway
+ *
+ * Copyright (C) 2005-2006 Atmel Corporation
+ *
+ * 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/clk.h>
+#include <linux/etherdevice.h>
+#include <linux/init.h>
+#include <linux/linkage.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+#include <linux/spi/spi.h>
+
+#include <asm/io.h>
+#include <asm/setup.h>
+
+#include <asm/arch/at32ap7000.h>
+#include <asm/arch/board.h>
+#include <asm/arch/init.h>
+
+/* Initialized by bootloader-specific startup code. */
+struct tag *bootloader_tags __initdata;
+
+struct eth_addr {
+        u8 addr[6];
+};
+static struct eth_addr __initdata hw_addr[2];
+static struct eth_platform_data __initdata eth_data[2];
+
+static struct spi_board_info spi0_board_info[] __initdata = {
+        {
+                .modalias       = "mtd_dataflash",
+                .max_speed_hz   = 10000000,
+                .chip_select    = 0,
+        },
+};
+
+/*
+ * The next two functions should go away as the boot loader is
+ * supposed to initialize the macb address registers with a valid
+ * ethernet address. But we need to keep it around for a while until
+ * we can be reasonably sure the boot loader does this.
+ *
+ * The phy_id is ignored as the driver will probe for it.
+ */
+static int __init parse_tag_ethernet(struct tag *tag)
+{
+        int i;
+
+        i = tag->u.ethernet.mac_index;
+        if (i < ARRAY_SIZE(hw_addr))
+                memcpy(hw_addr[i].addr, tag->u.ethernet.hw_address,
+                       sizeof(hw_addr[i].addr));
+
+        return 0;
+}
+__tagtable(ATAG_ETHERNET, parse_tag_ethernet);
+
+static void __init set_hw_addr(struct platform_device *pdev)
+{
+        struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        const u8 *addr;
+        void __iomem *regs;
+        struct clk *pclk;
+
+        if (!res)
+                return;
+        if (pdev->id >= ARRAY_SIZE(hw_addr))
+                return;
+
+        addr = hw_addr[pdev->id].addr;
+        if (!is_valid_ether_addr(addr))
+                return;
+
+        /*
+         * Since this is board-specific code, we'll cheat and use the
+         * physical address directly as we happen to know that it's
+         * the same as the virtual address.
+         */
+        regs = (void __iomem __force *)res->start;
+        pclk = clk_get(&pdev->dev, "pclk");
+        if (!pclk)
+                return;
+
+        clk_enable(pclk);
+        __raw_writel((addr[3] << 24) | (addr[2] << 16)
+                     | (addr[1] << 8) | addr[0], regs + 0x98);
+        __raw_writel((addr[5] << 8) | addr[4], regs + 0x9c);
+        clk_disable(pclk);
+        clk_put(pclk);
+}
+
+struct platform_device *at32_usart_map[1];
+unsigned int at32_nr_usarts = 1;
+
+void __init setup_board(void)
+{
+        at32_map_usart(1, 0);   /* USART 1: /dev/ttyS0, DB9 */
+        at32_setup_serial_console(0);
+}
+
+static int __init atngw100_init(void)
+{
+        /*
+         * ATNGW100 uses 16-bit SDRAM interface, so we don't need to
+         * reserve any pins for it.
+         */
+
+        at32_add_system_devices();
+
+        at32_add_device_usart(0);
+
+        set_hw_addr(at32_add_device_eth(0, &eth_data[0]));
+        set_hw_addr(at32_add_device_eth(1, &eth_data[1]));
+
+        at32_add_device_spi(0, spi0_board_info, ARRAY_SIZE(spi0_board_info));
+
+        return 0;
+}
+postcore_initcall(atngw100_init);