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-rw-r--r--arch/arm/mach-omap2/board-generic.c373
1 files changed, 373 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
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+++ b/arch/arm/mach-omap2/board-generic.c
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+// 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 - 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.
+ */
+#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 <asm/setup.h>
+#include <asm/mach/arch.h>
+#include <asm/system_info.h>
+
+#include "common.h"
+
+static const struct of_device_id omap_dt_match_table[] __initconst = {
+ { .compatible = "simple-bus", },
+ { .compatible = "ti,omap-infra", },
+ { }
+};
+
+static void __init __maybe_unused omap_generic_init(void)
+{
+ pdata_quirks_init(omap_dt_match_table);
+ omap_soc_device_init();
+}
+
+/* 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();
+}
+
+/* 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 *const omap242x_boards_compat[] __initconst = {
+ "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_machine = omap_generic_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 *const omap243x_boards_compat[] __initconst = {
+ "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_machine = omap_generic_init,
+ .init_time = omap_init_time_of,
+ .dt_compat = omap243x_boards_compat,
+ .restart = omap2xxx_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_ARCH_OMAP3
+/* 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,
+};
+
+DT_MACHINE_START(OMAP3_DT, "Generic OMAP3 (Flattened Device Tree)")
+ .reserve = omap_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 = omap3_boards_compat,
+ .restart = omap3xxx_restart,
+MACHINE_END
+
+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,
+};
+
+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_machine = omap_generic_init,
+ .init_late = omap3_init_late,
+ .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 *const am33xx_boards_compat[] __initconst = {
+ "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_machine = omap_generic_init,
+ .init_late = am33xx_init_late,
+ .init_time = omap_init_time_of,
+ .dt_compat = am33xx_boards_compat,
+ .restart = am33xx_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_ARCH_OMAP4
+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,
+ .init_early = omap4430_init_early,
+ .init_irq = omap_gic_of_init,
+ .init_machine = omap_generic_init,
+ .init_late = omap4430_init_late,
+ .init_time = omap_init_time_of,
+ .dt_compat = omap4_boards_compat,
+ .restart = omap44xx_restart,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_SOC_OMAP5
+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,
+MACHINE_END
+#endif
+
+#ifdef CONFIG_SOC_AM43XX
+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 = 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
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