diff options
Diffstat (limited to 'arch/arm/mach-omap2/board-generic.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-generic.c | 281 |
1 files changed, 228 insertions, 53 deletions
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index e5fbfed69aa2..68e0baad2bbf 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -1,58 +1,53 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2005 Nokia Corporation * Author: Paul Mundt <paul.mundt@nokia.com> * - * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ + * Copyright (C) 2011 Texas Instruments Incorporated - https://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 <linux/clocksource.h> +#include <linux/clockchips.h> +#include <linux/mod_devicetable.h> +#include <asm/setup.h> #include <asm/mach/arch.h> +#include <asm/system_info.h> #include "common.h" -#include "common-board-devices.h" -#include "dss-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 = { +static const struct of_device_id omap_dt_match_table[] __initconst = { { .compatible = "simple-bus", }, { .compatible = "ti,omap-infra", }, { } }; -static void __init omap_generic_init(void) +static void __init __maybe_unused omap_generic_init(void) { - omap_sdrc_init(NULL, NULL); + pdata_quirks_init(omap_dt_match_table); + omap_soc_device_init(); +} - of_platform_populate(NULL, omap_dt_match_table, NULL, NULL); +/* Clocks are needed early, see drivers/clocksource for the rest */ +static void __init __maybe_unused omap_init_time_of(void) +{ + omap_clk_init(); + timer_probe(); +} - /* - * HACK: call display setup code for selected boards to enable omapdss. - * This will be removed when omapdss supports DT. - */ - if (of_machine_is_compatible("ti,omap4-panda")) - omap4_panda_display_init_of(); - else if (of_machine_is_compatible("ti,omap4-sdp")) - omap_4430sdp_display_init_of(); +/* Used by am437x for ARM timer in non-SMP configurations */ +#if !defined(CONFIG_SMP) && defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) +void tick_broadcast(const struct cpumask *mask) +{ } +#endif #ifdef CONFIG_SOC_OMAP2420 -static const char *omap242x_boards_compat[] __initdata = { +static const char *const omap242x_boards_compat[] __initconst = { "ti,omap2420", NULL, }; @@ -61,17 +56,15 @@ 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, + .init_time = omap_init_time_of, .dt_compat = omap242x_boards_compat, .restart = omap2xxx_restart, MACHINE_END #endif #ifdef CONFIG_SOC_OMAP2430 -static const char *omap243x_boards_compat[] __initdata = { +static const char *const omap243x_boards_compat[] __initconst = { "ti,omap2430", NULL, }; @@ -80,17 +73,62 @@ 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, + .init_time = omap_init_time_of, .dt_compat = omap243x_boards_compat, .restart = omap2xxx_restart, MACHINE_END #endif #ifdef CONFIG_ARCH_OMAP3 -static const char *omap3_boards_compat[] __initdata = { +/* Some boards need board name for legacy userspace in /proc/cpuinfo */ +static const char *const n900_boards_compat[] __initconst = { + "nokia,omap3-n900", + NULL, +}; + +/* Set system_rev from atags */ +static void __init rx51_set_system_rev(const struct tag *tags) +{ + const struct tag *tag; + + if (tags->hdr.tag != ATAG_CORE) + return; + + for_each_tag(tag, tags) { + if (tag->hdr.tag == ATAG_REVISION) { + system_rev = tag->u.revision.rev; + break; + } + } +} + +/* Legacy userspace on Nokia N900 needs ATAGS exported in /proc/atags, + * save them while the data is still not overwritten + */ +static void __init rx51_reserve(void) +{ + const struct tag *tags = (const struct tag *)(PAGE_OFFSET + 0x100); + + save_atags(tags); + rx51_set_system_rev(tags); + omap_reserve(); +} + +DT_MACHINE_START(OMAP3_N900_DT, "Nokia RX-51 board") + .reserve = rx51_reserve, + .map_io = omap3_map_io, + .init_early = omap3430_init_early, + .init_machine = omap_generic_init, + .init_late = omap3_init_late, + .init_time = omap_init_time_of, + .dt_compat = n900_boards_compat, + .restart = omap3xxx_restart, +MACHINE_END + +/* Generic omap3 boards, most boards can use these */ +static const char *const omap3_boards_compat[] __initconst = { + "ti,omap3430", "ti,omap3", NULL, }; @@ -99,16 +137,31 @@ 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, + .init_time = omap_init_time_of, .dt_compat = omap3_boards_compat, .restart = omap3xxx_restart, MACHINE_END -static const char *omap3_gp_boards_compat[] __initdata = { +static const char *const omap36xx_boards_compat[] __initconst = { + "ti,omap3630", + "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_machine = omap_generic_init, + .init_late = omap3_init_late, + .init_time = omap_init_time_of, + .dt_compat = omap36xx_boards_compat, + .restart = omap3xxx_restart, +MACHINE_END + +static const char *const omap3_gp_boards_compat[] __initconst = { "ti,omap3-beagle", "timll,omap3-devkit8000", NULL, @@ -118,18 +171,68 @@ 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, + .init_time = omap_init_time_of, .dt_compat = omap3_gp_boards_compat, .restart = omap3xxx_restart, MACHINE_END + +static const char *const am3517_boards_compat[] __initconst = { + "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_machine = omap_generic_init, + .init_late = omap3_init_late, + .init_time = omap_init_time_of, + .dt_compat = am3517_boards_compat, + .restart = omap3xxx_restart, +MACHINE_END +#endif + +#ifdef CONFIG_SOC_TI81XX +static const char *const ti814x_boards_compat[] __initconst = { + "ti,dm8148", + "ti,dm814", + NULL, +}; + +DT_MACHINE_START(TI814X_DT, "Generic ti814x (Flattened Device Tree)") + .reserve = omap_reserve, + .map_io = ti81xx_map_io, + .init_early = ti814x_init_early, + .init_machine = omap_generic_init, + .init_late = ti81xx_init_late, + .init_time = omap_init_time_of, + .dt_compat = ti814x_boards_compat, + .restart = ti81xx_restart, +MACHINE_END + +static const char *const ti816x_boards_compat[] __initconst = { + "ti,dm8168", + "ti,dm816", + NULL, +}; + +DT_MACHINE_START(TI816X_DT, "Generic ti816x (Flattened Device Tree)") + .reserve = omap_reserve, + .map_io = ti81xx_map_io, + .init_early = ti816x_init_early, + .init_machine = omap_generic_init, + .init_late = ti81xx_init_late, + .init_time = omap_init_time_of, + .dt_compat = ti816x_boards_compat, + .restart = ti81xx_restart, +MACHINE_END #endif #ifdef CONFIG_SOC_AM33XX -static const char *am33xx_boards_compat[] __initdata = { +static const char *const am33xx_boards_compat[] __initconst = { "ti,am33xx", NULL, }; @@ -138,22 +241,32 @@ 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_time = omap3_gptimer_timer_init, + .init_late = am33xx_init_late, + .init_time = omap_init_time_of, .dt_compat = am33xx_boards_compat, .restart = am33xx_restart, + /* + * Historically am33xx supported only REBOOT_WARM even though default + * reboot_mode was REBOOT_COLD. Reflect legacy de-facto behaviour in + * SYSFS. + */ + .reboot_mode = REBOOT_WARM, MACHINE_END #endif #ifdef CONFIG_ARCH_OMAP4 -static const char *omap4_boards_compat[] __initdata = { +static const char *const omap4_boards_compat[] __initconst = { + "ti,omap4460", + "ti,omap4430", "ti,omap4", NULL, }; DT_MACHINE_START(OMAP4_DT, "Generic OMAP4 (Flattened Device Tree)") + .l2c_aux_val = OMAP_L2C_AUX_CTRL, + .l2c_aux_mask = 0xcf9fffff, + .l2c_write_sec = omap4_l2c310_write_sec, .reserve = omap_reserve, .smp = smp_ops(omap4_smp_ops), .map_io = omap4_map_io, @@ -161,25 +274,31 @@ DT_MACHINE_START(OMAP4_DT, "Generic OMAP4 (Flattened Device Tree)") .init_irq = omap_gic_of_init, .init_machine = omap_generic_init, .init_late = omap4430_init_late, - .init_time = omap4_local_timer_init, + .init_time = omap_init_time_of, .dt_compat = omap4_boards_compat, .restart = omap44xx_restart, MACHINE_END #endif #ifdef CONFIG_SOC_OMAP5 -static const char *omap5_boards_compat[] __initdata = { +static const char *const omap5_boards_compat[] __initconst = { + "ti,omap5432", + "ti,omap5430", "ti,omap5", NULL, }; DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)") +#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE) + .dma_zone_size = SZ_2G, +#endif .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, @@ -187,17 +306,73 @@ MACHINE_END #endif #ifdef CONFIG_SOC_AM43XX -static const char *am43_boards_compat[] __initdata = { +static const char *const am43_boards_compat[] __initconst = { + "ti,am4372", "ti,am43", NULL, }; DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)") + .l2c_aux_val = OMAP_L2C_AUX_CTRL, + .l2c_aux_mask = 0xcf9fffff, + .l2c_write_sec = omap4_l2c310_write_sec, .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_sync32k_timer_init, + .init_time = omap_init_time_of, .dt_compat = am43_boards_compat, + .restart = omap44xx_restart, +MACHINE_END +#endif + +#ifdef CONFIG_SOC_DRA7XX +static const char *const dra74x_boards_compat[] __initconst = { + "ti,dra762", + "ti,am5728", + "ti,am5726", + "ti,dra742", + "ti,dra7", + NULL, +}; + +DT_MACHINE_START(DRA74X_DT, "Generic DRA74X (Flattened Device Tree)") +#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE) + .dma_zone_size = SZ_2G, +#endif + .reserve = omap_reserve, + .smp = smp_ops(omap4_smp_ops), + .map_io = dra7xx_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 = dra74x_boards_compat, + .restart = omap44xx_restart, +MACHINE_END + +static const char *const dra72x_boards_compat[] __initconst = { + "ti,am5718", + "ti,am5716", + "ti,dra722", + "ti,dra718", + NULL, +}; + +DT_MACHINE_START(DRA72X_DT, "Generic DRA72X (Flattened Device Tree)") +#if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE) + .dma_zone_size = SZ_2G, +#endif + .reserve = omap_reserve, + .map_io = dra7xx_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 = dra72x_boards_compat, + .restart = omap44xx_restart, MACHINE_END #endif |