[AVR32] Board code for ATNGW100 (9ca20a83) · Commits · e / devices / android_kernel_oneplus_sm7250

arch/avr32/Kconfig

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		@@ -111,6 +111,9 @@ choice
		config BOARD_ATSTK1000
		bool "ATSTK1000 evaluation board"
		select BOARD_ATSTK1002 if CPU_AT32AP7000

		config BOARD_ATNGW100
		bool "ATNGW100 Network Gateway"
		endchoice

		choice

arch/avr32/Makefile

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		@@ -27,6 +27,7 @@ head-$(CONFIG_LOADER_U_BOOT) += arch/avr32/boot/u-boot/head.o
		head-y += arch/avr32/kernel/head.o
		core-$(CONFIG_PLATFORM_AT32AP) += arch/avr32/mach-at32ap/
		core-$(CONFIG_BOARD_ATSTK1000) += arch/avr32/boards/atstk1000/
		core-$(CONFIG_BOARD_ATNGW100) += arch/avr32/boards/atngw100/
		core-$(CONFIG_LOADER_U_BOOT) += arch/avr32/boot/u-boot/
		core-y += arch/avr32/kernel/
		core-y += arch/avr32/mm/

arch/avr32/boards/atngw100/Makefile

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		obj-y += setup.o flash.o

arch/avr32/boards/atngw100/flash.c

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		/*
		* 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);

arch/avr32/boards/atngw100/setup.c

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		/*
		* 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);