mirror of
https://github.com/torvalds/linux.git
synced 2024-12-27 13:22:23 +00:00
5b5c013591
The SyncTimer in AM43x is clocked using the following two sources: 1) An inaccuarte 32k clock (CLK_32KHZ) derived from PER DPLL, causing system time to go slowly (~10% deviation). 2) external 32KHz RTC clock, which may not always be available on board like in the case of ePOS EVM Use gptimer as clocksource instead, as is done in the case of AM335x (which does not have a SyncTimer). With this, system time keeping works accurately. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
257 lines
6.6 KiB
C
257 lines
6.6 KiB
C
/*
|
|
* Copyright (C) 2005 Nokia Corporation
|
|
* Author: Paul Mundt <paul.mundt@nokia.com>
|
|
*
|
|
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
|
|
*
|
|
* Modified from the original mach-omap/omap2/board-generic.c did by Paul
|
|
* to support the OMAP2+ device tree boards with an unique board file.
|
|
*
|
|
* 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 "common.h"
|
|
|
|
#if !(defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3))
|
|
#define intc_of_init NULL
|
|
#endif
|
|
#ifndef CONFIG_ARCH_OMAP4
|
|
#define gic_of_init NULL
|
|
#endif
|
|
|
|
static struct of_device_id omap_dt_match_table[] __initdata = {
|
|
{ .compatible = "simple-bus", },
|
|
{ .compatible = "ti,omap-infra", },
|
|
{ }
|
|
};
|
|
|
|
static void __init omap_generic_init(void)
|
|
{
|
|
pdata_quirks_init(omap_dt_match_table);
|
|
}
|
|
|
|
#ifdef CONFIG_SOC_OMAP2420
|
|
static const char *omap242x_boards_compat[] __initdata = {
|
|
"ti,omap2420",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(OMAP242X_DT, "Generic OMAP2420 (Flattened Device Tree)")
|
|
.reserve = omap_reserve,
|
|
.map_io = omap242x_map_io,
|
|
.init_early = omap2420_init_early,
|
|
.init_irq = omap_intc_of_init,
|
|
.handle_irq = omap2_intc_handle_irq,
|
|
.init_machine = omap_generic_init,
|
|
.init_time = omap2_sync32k_timer_init,
|
|
.dt_compat = omap242x_boards_compat,
|
|
.restart = omap2xxx_restart,
|
|
MACHINE_END
|
|
#endif
|
|
|
|
#ifdef CONFIG_SOC_OMAP2430
|
|
static const char *omap243x_boards_compat[] __initdata = {
|
|
"ti,omap2430",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(OMAP243X_DT, "Generic OMAP2430 (Flattened Device Tree)")
|
|
.reserve = omap_reserve,
|
|
.map_io = omap243x_map_io,
|
|
.init_early = omap2430_init_early,
|
|
.init_irq = omap_intc_of_init,
|
|
.handle_irq = omap2_intc_handle_irq,
|
|
.init_machine = omap_generic_init,
|
|
.init_time = omap2_sync32k_timer_init,
|
|
.dt_compat = omap243x_boards_compat,
|
|
.restart = omap2xxx_restart,
|
|
MACHINE_END
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_OMAP3
|
|
static const char *omap3_boards_compat[] __initdata = {
|
|
"ti,omap3430",
|
|
"ti,omap3",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)")
|
|
.reserve = omap_reserve,
|
|
.map_io = omap3_map_io,
|
|
.init_early = omap3430_init_early,
|
|
.init_irq = omap_intc_of_init,
|
|
.handle_irq = omap3_intc_handle_irq,
|
|
.init_machine = omap_generic_init,
|
|
.init_late = omap3_init_late,
|
|
.init_time = omap3_sync32k_timer_init,
|
|
.dt_compat = omap3_boards_compat,
|
|
.restart = omap3xxx_restart,
|
|
MACHINE_END
|
|
|
|
static const char *omap36xx_boards_compat[] __initdata = {
|
|
"ti,omap36xx",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(OMAP36XX_DT, "Generic OMAP36xx (Flattened Device Tree)")
|
|
.reserve = omap_reserve,
|
|
.map_io = omap3_map_io,
|
|
.init_early = omap3630_init_early,
|
|
.init_irq = omap_intc_of_init,
|
|
.handle_irq = omap3_intc_handle_irq,
|
|
.init_machine = omap_generic_init,
|
|
.init_late = omap3_init_late,
|
|
.init_time = omap3_sync32k_timer_init,
|
|
.dt_compat = omap36xx_boards_compat,
|
|
.restart = omap3xxx_restart,
|
|
MACHINE_END
|
|
|
|
static const char *omap3_gp_boards_compat[] __initdata = {
|
|
"ti,omap3-beagle",
|
|
"timll,omap3-devkit8000",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(OMAP3_GP_DT, "Generic OMAP3-GP (Flattened Device Tree)")
|
|
.reserve = omap_reserve,
|
|
.map_io = omap3_map_io,
|
|
.init_early = omap3430_init_early,
|
|
.init_irq = omap_intc_of_init,
|
|
.handle_irq = omap3_intc_handle_irq,
|
|
.init_machine = omap_generic_init,
|
|
.init_late = omap3_init_late,
|
|
.init_time = omap3_secure_sync32k_timer_init,
|
|
.dt_compat = omap3_gp_boards_compat,
|
|
.restart = omap3xxx_restart,
|
|
MACHINE_END
|
|
|
|
static const char *am3517_boards_compat[] __initdata = {
|
|
"ti,am3517",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(AM3517_DT, "Generic AM3517 (Flattened Device Tree)")
|
|
.reserve = omap_reserve,
|
|
.map_io = omap3_map_io,
|
|
.init_early = am35xx_init_early,
|
|
.init_irq = omap_intc_of_init,
|
|
.handle_irq = omap3_intc_handle_irq,
|
|
.init_machine = omap_generic_init,
|
|
.init_late = omap3_init_late,
|
|
.init_time = omap3_gptimer_timer_init,
|
|
.dt_compat = am3517_boards_compat,
|
|
.restart = omap3xxx_restart,
|
|
MACHINE_END
|
|
#endif
|
|
|
|
#ifdef CONFIG_SOC_AM33XX
|
|
static const char *am33xx_boards_compat[] __initdata = {
|
|
"ti,am33xx",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
|
|
.reserve = omap_reserve,
|
|
.map_io = am33xx_map_io,
|
|
.init_early = am33xx_init_early,
|
|
.init_irq = omap_intc_of_init,
|
|
.handle_irq = omap3_intc_handle_irq,
|
|
.init_machine = omap_generic_init,
|
|
.init_late = am33xx_init_late,
|
|
.init_time = omap3_gptimer_timer_init,
|
|
.dt_compat = am33xx_boards_compat,
|
|
.restart = am33xx_restart,
|
|
MACHINE_END
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_OMAP4
|
|
static const char *omap4_boards_compat[] __initdata = {
|
|
"ti,omap4460",
|
|
"ti,omap4430",
|
|
"ti,omap4",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(OMAP4_DT, "Generic OMAP4 (Flattened Device Tree)")
|
|
.reserve = omap_reserve,
|
|
.smp = smp_ops(omap4_smp_ops),
|
|
.map_io = omap4_map_io,
|
|
.init_early = omap4430_init_early,
|
|
.init_irq = omap_gic_of_init,
|
|
.init_machine = omap_generic_init,
|
|
.init_late = omap4430_init_late,
|
|
.init_time = omap4_local_timer_init,
|
|
.dt_compat = omap4_boards_compat,
|
|
.restart = omap44xx_restart,
|
|
MACHINE_END
|
|
#endif
|
|
|
|
#ifdef CONFIG_SOC_OMAP5
|
|
static const char *omap5_boards_compat[] __initdata = {
|
|
"ti,omap5432",
|
|
"ti,omap5430",
|
|
"ti,omap5",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)")
|
|
.reserve = omap_reserve,
|
|
.smp = smp_ops(omap4_smp_ops),
|
|
.map_io = omap5_map_io,
|
|
.init_early = omap5_init_early,
|
|
.init_irq = omap_gic_of_init,
|
|
.init_machine = omap_generic_init,
|
|
.init_late = omap5_init_late,
|
|
.init_time = omap5_realtime_timer_init,
|
|
.dt_compat = omap5_boards_compat,
|
|
.restart = omap44xx_restart,
|
|
MACHINE_END
|
|
#endif
|
|
|
|
#ifdef CONFIG_SOC_AM43XX
|
|
static const char *am43_boards_compat[] __initdata = {
|
|
"ti,am4372",
|
|
"ti,am43",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)")
|
|
.map_io = am33xx_map_io,
|
|
.init_early = am43xx_init_early,
|
|
.init_late = am43xx_init_late,
|
|
.init_irq = omap_gic_of_init,
|
|
.init_machine = omap_generic_init,
|
|
.init_time = omap3_gptimer_timer_init,
|
|
.dt_compat = am43_boards_compat,
|
|
MACHINE_END
|
|
#endif
|
|
|
|
#ifdef CONFIG_SOC_DRA7XX
|
|
static const char *dra7xx_boards_compat[] __initdata = {
|
|
"ti,dra7xx",
|
|
"ti,dra7",
|
|
NULL,
|
|
};
|
|
|
|
DT_MACHINE_START(DRA7XX_DT, "Generic DRA7XX (Flattened Device Tree)")
|
|
.reserve = omap_reserve,
|
|
.smp = smp_ops(omap4_smp_ops),
|
|
.map_io = omap5_map_io,
|
|
.init_early = dra7xx_init_early,
|
|
.init_late = dra7xx_init_late,
|
|
.init_irq = omap_gic_of_init,
|
|
.init_machine = omap_generic_init,
|
|
.init_time = omap5_realtime_timer_init,
|
|
.dt_compat = dra7xx_boards_compat,
|
|
.restart = omap44xx_restart,
|
|
MACHINE_END
|
|
#endif
|