Tegra: platform: support Tegra186 chip id
This patch adds support to read the chip id and identify if
the current platform is Tegra186.
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
diff --git a/plat/nvidia/tegra/common/tegra_platform.c b/plat/nvidia/tegra/common/tegra_platform.c
index 0724b18..18cc555 100644
--- a/plat/nvidia/tegra/common/tegra_platform.c
+++ b/plat/nvidia/tegra/common/tegra_platform.c
@@ -69,6 +69,7 @@
typedef enum tegra_chipid {
TEGRA_CHIPID_TEGRA13 = 0x13,
TEGRA_CHIPID_TEGRA21 = 0x21,
+ TEGRA_CHIPID_TEGRA18 = 0x18,
} tegra_chipid_t;
/*
@@ -109,6 +110,13 @@
return (chip_id == TEGRA_CHIPID_TEGRA21);
}
+uint8_t tegra_chipid_is_t186(void)
+{
+ uint32_t chip_id = (tegra_get_chipid() >> CHIP_ID_SHIFT) & CHIP_ID_MASK;
+
+ return (chip_id == TEGRA_CHIPID_TEGRA18);
+}
+
/*
* Read the chip ID value and derive the platform
*/