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-rw-r--r--arch/arm/mach-tegra/common.c55
1 files changed, 41 insertions, 14 deletions
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index 690b888be50..a2eb90169ae 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -1,5 +1,5 @@
/*
- * arch/arm/mach-tegra/board-harmony.c
+ * arch/arm/mach-tegra/common.c
*
* Copyright (C) 2010 Google, Inc.
*
@@ -21,8 +21,10 @@
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/delay.h>
+#include <linux/of_irq.h>
#include <asm/hardware/cache-l2x0.h>
+#include <asm/hardware/gic.h>
#include <mach/iomap.h>
#include <mach/system.h>
@@ -31,20 +33,31 @@
#include "clock.h"
#include "fuse.h"
-void (*arch_reset)(char mode, const char *cmd) = tegra_assert_system_reset;
+#ifdef CONFIG_OF
+static const struct of_device_id tegra_dt_irq_match[] __initconst = {
+ { .compatible = "arm,cortex-a9-gic", .data = gic_of_init },
+ { }
+};
+
+void __init tegra_dt_init_irq(void)
+{
+ tegra_init_irq();
+ of_irq_init(tegra_dt_irq_match);
+}
+#endif
void tegra_assert_system_reset(char mode, const char *cmd)
{
- void __iomem *reset = IO_ADDRESS(TEGRA_CLK_RESET_BASE + 0x04);
+ void __iomem *reset = IO_ADDRESS(TEGRA_PMC_BASE + 0);
u32 reg;
- /* use *_related to avoid spinlock since caches are off */
reg = readl_relaxed(reset);
- reg |= 0x04;
+ reg |= 0x10;
writel_relaxed(reg, reset);
}
-static __initdata struct tegra_clk_init_table common_clk_init_table[] = {
+#ifdef CONFIG_ARCH_TEGRA_2x_SOC
+static __initdata struct tegra_clk_init_table tegra20_clk_init_table[] = {
/* name parent rate enabled */
{ "clk_m", NULL, 0, true },
{ "pll_p", "clk_m", 216000000, true },
@@ -60,24 +73,38 @@ static __initdata struct tegra_clk_init_table common_clk_init_table[] = {
{ "cpu", NULL, 0, true },
{ NULL, NULL, 0, 0},
};
+#endif
-static void __init tegra_init_cache(void)
+static void __init tegra_init_cache(u32 tag_latency, u32 data_latency)
{
#ifdef CONFIG_CACHE_L2X0
void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000;
+ u32 aux_ctrl, cache_type;
- writel_relaxed(0x331, p + L2X0_TAG_LATENCY_CTRL);
- writel_relaxed(0x441, p + L2X0_DATA_LATENCY_CTRL);
+ writel_relaxed(tag_latency, p + L2X0_TAG_LATENCY_CTRL);
+ writel_relaxed(data_latency, p + L2X0_DATA_LATENCY_CTRL);
- l2x0_init(p, 0x6C080001, 0x8200c3fe);
+ cache_type = readl(p + L2X0_CACHE_TYPE);
+ aux_ctrl = (cache_type & 0x700) << (17-8);
+ aux_ctrl |= 0x6C000001;
+
+ l2x0_init(p, aux_ctrl, 0x8200c3fe);
#endif
}
-void __init tegra_init_early(void)
+#ifdef CONFIG_ARCH_TEGRA_2x_SOC
+void __init tegra20_init_early(void)
{
tegra_init_fuse();
- tegra_init_clock();
- tegra_clk_init_from_table(common_clk_init_table);
- tegra_init_cache();
+ tegra2_init_clocks();
+ tegra_clk_init_from_table(tegra20_clk_init_table);
+ tegra_init_cache(0x331, 0x441);
}
+#endif
+#ifdef CONFIG_ARCH_TEGRA_3x_SOC
+void __init tegra30_init_early(void)
+{
+ tegra_init_cache(0x441, 0x551);
+}
+#endif