Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / arm / mach-spear / spear1310.c

diff --git a/kernel/arch/arm/mach-spear/spear1310.c b/kernel/arch/arm/mach-spear/spear1310.c
new file mode 100644 (file)
index 0000000..d9ce4d8
--- /dev/null
+++ b/kernel/arch/arm/mach-spear/spear1310.c
@@ -0,0 +1,67 @@
+/*
+ * arch/arm/mach-spear13xx/spear1310.c
+ *
+ * SPEAr1310 machine source file
+ *
+ * Copyright (C) 2012 ST Microelectronics
+ * Viresh Kumar <viresh.linux@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#define pr_fmt(fmt) "SPEAr1310: " fmt
+
+#include <linux/amba/pl022.h>
+#include <linux/of_platform.h>
+#include <linux/pata_arasan_cf_data.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include "generic.h"
+#include <mach/spear.h>
+
+/* Base addresses */
+#define SPEAR1310_RAS_GRP1_BASE                        UL(0xD8000000)
+#define VA_SPEAR1310_RAS_GRP1_BASE             UL(0xFA000000)
+
+static void __init spear1310_dt_init(void)
+{
+       of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+       platform_device_register_simple("spear-cpufreq", -1, NULL, 0);
+}
+
+static const char * const spear1310_dt_board_compat[] = {
+       "st,spear1310",
+       "st,spear1310-evb",
+       NULL,
+};
+
+/*
+ * Following will create 16MB static virtual/physical mappings
+ * PHYSICAL            VIRTUAL
+ * 0xD8000000          0xFA000000
+ */
+static struct map_desc spear1310_io_desc[] __initdata = {
+       {
+               .virtual        = VA_SPEAR1310_RAS_GRP1_BASE,
+               .pfn            = __phys_to_pfn(SPEAR1310_RAS_GRP1_BASE),
+               .length         = SZ_16M,
+               .type           = MT_DEVICE
+       },
+};
+
+static void __init spear1310_map_io(void)
+{
+       iotable_init(spear1310_io_desc, ARRAY_SIZE(spear1310_io_desc));
+       spear13xx_map_io();
+}
+
+DT_MACHINE_START(SPEAR1310_DT, "ST SPEAr1310 SoC with Flattened Device Tree")
+       .smp            =       smp_ops(spear13xx_smp_ops),
+       .map_io         =       spear1310_map_io,
+       .init_time      =       spear13xx_timer_init,
+       .init_machine   =       spear1310_dt_init,
+       .restart        =       spear_restart,
+       .dt_compat      =       spear1310_dt_board_compat,
+MACHINE_END