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
new file mode 100644
index 000000000..10d2f078e
--- /dev/null
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -0,0 +1,373 @@
+// 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