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Subject[PATCH v2 7/8] arm/tegra: implement support for tegra30
Date
Add support for tegra30 SoC. This includes a device tree compatible type for
this SoC ("nvidia,tegra30") and adds L2 cache initialization for this new SoC.
The clock framework is still missing, which prevents most drivers from working.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
---
arch/arm/mach-tegra/Kconfig | 18 +++++++++++++-----
arch/arm/mach-tegra/board-dt.c | 1 +
arch/arm/mach-tegra/board.h | 1 +
arch/arm/mach-tegra/common.c | 6 ++++++
4 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 91aff7c..f2eb6d1 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -2,11 +2,8 @@ if ARCH_TEGRA

comment "NVIDIA Tegra options"

-choice
- prompt "Select Tegra processor family for target system"
-
config ARCH_TEGRA_2x_SOC
- bool "Tegra 2 family"
+ bool "Enable support for Tegra20 family"
select CPU_V7
select ARM_GIC
select ARCH_REQUIRE_GPIOLIB
@@ -17,7 +14,18 @@ config ARCH_TEGRA_2x_SOC
Support for NVIDIA Tegra AP20 and T20 processors, based on the
ARM CortexA9MP CPU and the ARM PL310 L2 cache controller

-endchoice
+config ARCH_TEGRA_3x_SOC
+ bool "Enable support for Tegra30 family"
+ select CPU_V7
+ select ARM_GIC
+ select ARCH_REQUIRE_GPIOLIB
+ select USB_ARCH_HAS_EHCI if USB_SUPPORT
+ select USB_ULPI if USB_SUPPORT
+ select USB_ULPI_VIEWPORT if USB_SUPPORT
+ select USE_OF
+ help
+ Support for NVIDIA Tegra T30 processor family, based on the
+ ARM CortexA9MP CPU and the ARM PL310 L2 cache controller

config TEGRA_PCI
bool "PCI Express support"
diff --git a/arch/arm/mach-tegra/board-dt.c b/arch/arm/mach-tegra/board-dt.c
index a7bae50..1680e96 100644
--- a/arch/arm/mach-tegra/board-dt.c
+++ b/arch/arm/mach-tegra/board-dt.c
@@ -123,6 +123,7 @@ static struct {
void (*init)(void);
} early_init[] __initdata = {
{ "nvidia,tegra20", tegra20_init_early },
+ { "nvidia,tegra30", tegra30_init_early },
};

static void __init tegra_init_early(void)
diff --git a/arch/arm/mach-tegra/board.h b/arch/arm/mach-tegra/board.h
index b86cdab..708b330a 100644
--- a/arch/arm/mach-tegra/board.h
+++ b/arch/arm/mach-tegra/board.h
@@ -24,6 +24,7 @@
#include <linux/types.h>

void __init tegra20_init_early(void);
+void __init tegra30_init_early(void);
void __init tegra_map_common_io(void);
void __init tegra_init_irq(void);
void __init tegra_init_clock(void);
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index 6173fd8..30a6864 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -92,3 +92,9 @@ void __init tegra20_init_early(void)
tegra_init_cache(0x331, 0x441);
tegra_setup_system_reset();
}
+
+void __init tegra30_init_early(void)
+{
+ tegra_init_cache(0x441, 0x551);
+ tegra_setup_system_reset();
+}
--
1.7.7.rc0.72.g4b5ea.dirty


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