93ce285503
From Sekhar Nori: Second round of DT updates for DaVinci. This pull request adds support for I2C0 and watchdog timer for DA850 EVM booting using device tree. It also enables machine reboot when using device tree. * tag 'davinci-for-v3.9/dt-2' of git://gitorious.org/linux-davinci/linux-davinci: ARM: davinci: da850 DT: add support for machine reboot ARM: davinci: da850: add wdt DT node ARM: davinci: da850: add DT node for I2C0
74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
/*
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* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
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*
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* Modified from mach-omap/omap2/board-generic.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/io.h>
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#include <linux/of_irq.h>
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#include <linux/of_platform.h>
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#include <linux/irqdomain.h>
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#include <asm/mach/arch.h>
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#include <mach/common.h>
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#include <mach/cp_intc.h>
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#include <mach/da8xx.h>
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#define DA8XX_NUM_UARTS 3
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void __init da8xx_uart_clk_enable(void)
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{
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int i;
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for (i = 0; i < DA8XX_NUM_UARTS; i++)
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davinci_serial_setup_clk(i, NULL);
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}
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static struct of_device_id da8xx_irq_match[] __initdata = {
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{ .compatible = "ti,cp-intc", .data = cp_intc_of_init, },
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{ }
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};
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static void __init da8xx_init_irq(void)
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{
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of_irq_init(da8xx_irq_match);
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}
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struct of_dev_auxdata da850_auxdata_lookup[] __initdata = {
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OF_DEV_AUXDATA("ti,davinci-i2c", 0x01c22000, "i2c_davinci.1", NULL),
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OF_DEV_AUXDATA("ti,davinci-wdt", 0x01c21000, "watchdog", NULL),
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{}
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};
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#ifdef CONFIG_ARCH_DAVINCI_DA850
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static void __init da850_init_machine(void)
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{
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of_platform_populate(NULL, of_default_bus_match_table,
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da850_auxdata_lookup, NULL);
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da8xx_uart_clk_enable();
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}
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static const char *da850_boards_compat[] __initdata = {
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"enbw,cmc",
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"ti,da850-evm",
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"ti,da850",
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NULL,
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};
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DT_MACHINE_START(DA850_DT, "Generic DA850/OMAP-L138/AM18x")
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.map_io = da850_init,
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.init_irq = da8xx_init_irq,
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.init_time = davinci_timer_init,
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.init_machine = da850_init_machine,
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.dt_compat = da850_boards_compat,
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.init_late = davinci_init_late,
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.restart = da8xx_restart,
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MACHINE_END
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#endif
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