arm/tegra: prepare early init for multiple tegra variants
This patch splits the early init code in a common and a tegra20 specific part.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
diff --git a/arch/arm/mach-tegra/board-dt.c b/arch/arm/mach-tegra/board-dt.c
index c21863d..ddaa037 100644
--- a/arch/arm/mach-tegra/board-dt.c
+++ b/arch/arm/mach-tegra/board-dt.c
@@ -53,17 +53,6 @@
void trimslice_pinmux_init(void);
void ventana_pinmux_init(void);
-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);
-}
-
struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = {
OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC1_BASE, "sdhci-tegra.0", NULL),
OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC2_BASE, "sdhci-tegra.1", NULL),
@@ -139,7 +128,7 @@
"Unknown platform! Pinmuxing not initialized\n");
}
-static const char * tegra_dt_board_compat[] = {
+static const char *tegra20_dt_board_compat[] = {
"compulab,trimslice",
"nvidia,harmony",
"compal,paz00",
@@ -148,12 +137,12 @@
NULL
};
-DT_MACHINE_START(TEGRA_DT, "nVidia Tegra (Flattened Device Tree)")
+DT_MACHINE_START(TEGRA_DT, "nVidia Tegra20 (Flattened Device Tree)")
.map_io = tegra_map_common_io,
- .init_early = tegra_init_early,
+ .init_early = tegra20_init_early,
.init_irq = tegra_dt_init_irq,
.handle_irq = gic_handle_irq,
.timer = &tegra_timer,
.init_machine = tegra_dt_init,
- .dt_compat = tegra_dt_board_compat,
+ .dt_compat = tegra20_dt_board_compat,
MACHINE_END
diff --git a/arch/arm/mach-tegra/board-harmony.c b/arch/arm/mach-tegra/board-harmony.c
index fd190a8..d60a0d4 100644
--- a/arch/arm/mach-tegra/board-harmony.c
+++ b/arch/arm/mach-tegra/board-harmony.c
@@ -186,7 +186,7 @@
.atag_offset = 0x100,
.fixup = tegra_harmony_fixup,
.map_io = tegra_map_common_io,
- .init_early = tegra_init_early,
+ .init_early = tegra20_init_early,
.init_irq = tegra_init_irq,
.handle_irq = gic_handle_irq,
.timer = &tegra_timer,
diff --git a/arch/arm/mach-tegra/board-paz00.c b/arch/arm/mach-tegra/board-paz00.c
index 0b7e1cf..e68b407 100644
--- a/arch/arm/mach-tegra/board-paz00.c
+++ b/arch/arm/mach-tegra/board-paz00.c
@@ -189,7 +189,7 @@
.atag_offset = 0x100,
.fixup = tegra_paz00_fixup,
.map_io = tegra_map_common_io,
- .init_early = tegra_init_early,
+ .init_early = tegra20_init_early,
.init_irq = tegra_init_irq,
.handle_irq = gic_handle_irq,
.timer = &tegra_timer,
diff --git a/arch/arm/mach-tegra/board-seaboard.c b/arch/arm/mach-tegra/board-seaboard.c
index 7328379..b79f9ce 100644
--- a/arch/arm/mach-tegra/board-seaboard.c
+++ b/arch/arm/mach-tegra/board-seaboard.c
@@ -283,7 +283,7 @@
MACHINE_START(SEABOARD, "seaboard")
.atag_offset = 0x100,
.map_io = tegra_map_common_io,
- .init_early = tegra_init_early,
+ .init_early = tegra20_init_early,
.init_irq = tegra_init_irq,
.handle_irq = gic_handle_irq,
.timer = &tegra_timer,
@@ -293,7 +293,7 @@
MACHINE_START(KAEN, "kaen")
.atag_offset = 0x100,
.map_io = tegra_map_common_io,
- .init_early = tegra_init_early,
+ .init_early = tegra20_init_early,
.init_irq = tegra_init_irq,
.handle_irq = gic_handle_irq,
.timer = &tegra_timer,
@@ -303,7 +303,7 @@
MACHINE_START(WARIO, "wario")
.atag_offset = 0x100,
.map_io = tegra_map_common_io,
- .init_early = tegra_init_early,
+ .init_early = tegra20_init_early,
.init_irq = tegra_init_irq,
.handle_irq = gic_handle_irq,
.timer = &tegra_timer,
diff --git a/arch/arm/mach-tegra/board-trimslice.c b/arch/arm/mach-tegra/board-trimslice.c
index 60a36a2..4a197a2 100644
--- a/arch/arm/mach-tegra/board-trimslice.c
+++ b/arch/arm/mach-tegra/board-trimslice.c
@@ -175,7 +175,7 @@
.atag_offset = 0x100,
.fixup = tegra_trimslice_fixup,
.map_io = tegra_map_common_io,
- .init_early = tegra_init_early,
+ .init_early = tegra20_init_early,
.init_irq = tegra_init_irq,
.handle_irq = gic_handle_irq,
.timer = &tegra_timer,
diff --git a/arch/arm/mach-tegra/board.h b/arch/arm/mach-tegra/board.h
index 1d14df7..fdec3ff 100644
--- a/arch/arm/mach-tegra/board.h
+++ b/arch/arm/mach-tegra/board.h
@@ -25,9 +25,10 @@
void tegra_assert_system_reset(char mode, const char *cmd);
-void __init tegra_init_early(void);
+void __init tegra20_init_early(void);
void __init tegra_map_common_io(void);
void __init tegra_init_irq(void);
+void __init tegra_dt_init_irq(void);
void __init tegra_init_clock(void);
int __init tegra_pcie_init(bool init_port0, bool init_port1);
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index 690b888..0fafb60 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>
@@ -33,6 +35,17 @@
void (*arch_reset)(char mode, const char *cmd) = tegra_assert_system_reset;
+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);
+}
+
void tegra_assert_system_reset(char mode, const char *cmd)
{
void __iomem *reset = IO_ADDRESS(TEGRA_CLK_RESET_BASE + 0x04);
@@ -44,7 +57,8 @@
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 },
@@ -60,6 +74,7 @@
{ "cpu", NULL, 0, true },
{ NULL, NULL, 0, 0},
};
+#endif
static void __init tegra_init_cache(void)
{
@@ -74,10 +89,12 @@
}
-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);
+ tegra2_init_clocks();
+ tegra_clk_init_from_table(tegra20_clk_init_table);
tegra_init_cache();
}
+#endif