diff options
author | Sekhar Nori <nsekhar@ti.com> | 2012-08-28 15:27:52 +0530 |
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committer | Sekhar Nori <nsekhar@ti.com> | 2012-10-29 15:24:42 +0530 |
commit | 689e331f3fb6e0a44155eef35fe19caf3285c6ce (patch) | |
tree | 2a552fc6ce0d22663a0e5eaa7cecac2b57d94358 /arch/arm/mach-davinci/da8xx-dt.c | |
parent | 8e0d72d2c7a6955692ba0a21bbf5ca86e8061777 (diff) | |
download | linux-689e331f3fb6e0a44155eef35fe19caf3285c6ce.tar.bz2 |
ARM: davinci: da850: add DT boot support
Add support for booting DA850 using flattened device
tree to describe the hardware. At this time only the
very basic bootup using a serial console is supported.
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Diffstat (limited to 'arch/arm/mach-davinci/da8xx-dt.c')
-rw-r--r-- | arch/arm/mach-davinci/da8xx-dt.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c new file mode 100644 index 000000000000..df393d9b1517 --- /dev/null +++ b/arch/arm/mach-davinci/da8xx-dt.c @@ -0,0 +1,64 @@ +/* + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ + * + * Modified from mach-omap/omap2/board-generic.c + * + * 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/io.h> +#include <linux/of_irq.h> +#include <linux/of_platform.h> +#include <linux/irqdomain.h> + +#include <asm/mach/arch.h> + +#include <mach/common.h> +#include <mach/cp_intc.h> +#include <mach/da8xx.h> + +#define DA8XX_NUM_UARTS 3 + +void __init da8xx_uart_clk_enable(void) +{ + int i; + for (i = 0; i < DA8XX_NUM_UARTS; i++) + davinci_serial_setup_clk(i, NULL); +} + +static struct of_device_id da8xx_irq_match[] __initdata = { + { .compatible = "ti,cp-intc", .data = cp_intc_of_init, }, + { } +}; + +static void __init da8xx_init_irq(void) +{ + of_irq_init(da8xx_irq_match); +} + +#ifdef CONFIG_ARCH_DAVINCI_DA850 + +static void __init da850_init_machine(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + + da8xx_uart_clk_enable(); +} + +static const char *da850_boards_compat[] __initdata = { + "ti,da850", + NULL, +}; + +DT_MACHINE_START(DA850_DT, "Generic DA850/OMAP-L138/AM18x") + .map_io = da850_init, + .init_irq = da8xx_init_irq, + .timer = &davinci_timer, + .init_machine = da850_init_machine, + .dt_compat = da850_boards_compat, + .init_late = davinci_init_late, + .restart = da8xx_restart, +MACHINE_END + +#endif |