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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /arch/arm/mach-s5pv210/s5pv210.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-s5pv210/s5pv210.c')
-rw-r--r--arch/arm/mach-s5pv210/s5pv210.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pv210/s5pv210.c b/arch/arm/mach-s5pv210/s5pv210.c
new file mode 100644
index 000000000..a21ed3bb9
--- /dev/null
+++ b/arch/arm/mach-s5pv210/s5pv210.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Samsung's S5PC110/S5PV210 flattened device tree enabled machine.
+//
+// Copyright (c) 2013-2014 Samsung Electronics Co., Ltd.
+// Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
+// Tomasz Figa <t.figa@samsung.com>
+
+#include <linux/of_fdt.h>
+#include <linux/of_platform.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/system_misc.h>
+
+#include "common.h"
+#include "regs-clock.h"
+
+static int __init s5pv210_fdt_map_sys(unsigned long node, const char *uname,
+ int depth, void *data)
+{
+ struct map_desc iodesc;
+ const __be32 *reg;
+ int len;
+
+ if (!of_flat_dt_is_compatible(node, "samsung,s5pv210-clock"))
+ return 0;
+
+ reg = of_get_flat_dt_prop(node, "reg", &len);
+ if (reg == NULL || len != (sizeof(unsigned long) * 2))
+ return 0;
+
+ iodesc.pfn = __phys_to_pfn(be32_to_cpu(reg[0]));
+ iodesc.length = be32_to_cpu(reg[1]) - 1;
+ iodesc.virtual = (unsigned long)S3C_VA_SYS;
+ iodesc.type = MT_DEVICE;
+ iotable_init(&iodesc, 1);
+
+ return 1;
+}
+
+static void __init s5pv210_dt_map_io(void)
+{
+ debug_ll_io_init();
+
+ of_scan_flat_dt(s5pv210_fdt_map_sys, NULL);
+}
+
+static void s5pv210_dt_restart(enum reboot_mode mode, const char *cmd)
+{
+ __raw_writel(0x1, S5P_SWRESET);
+}
+
+static void __init s5pv210_dt_init_late(void)
+{
+ platform_device_register_simple("s5pv210-cpufreq", -1, NULL, 0);
+ s5pv210_pm_init();
+}
+
+static char const *const s5pv210_dt_compat[] __initconst = {
+ "samsung,s5pc110",
+ "samsung,s5pv210",
+ NULL
+};
+
+DT_MACHINE_START(S5PV210_DT, "Samsung S5PC110/S5PV210-based board")
+ .dt_compat = s5pv210_dt_compat,
+ .map_io = s5pv210_dt_map_io,
+ .restart = s5pv210_dt_restart,
+ .init_late = s5pv210_dt_init_late,
+MACHINE_END