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-rw-r--r--arch/arm/cpu/armv7/tegra124/Kconfig10
-rw-r--r--arch/arm/cpu/tegra20-common/pmu.c21
2 files changed, 26 insertions, 5 deletions
diff --git a/arch/arm/cpu/armv7/tegra124/Kconfig b/arch/arm/cpu/armv7/tegra124/Kconfig
index 6a1c83a27b..88f627c932 100644
--- a/arch/arm/cpu/armv7/tegra124/Kconfig
+++ b/arch/arm/cpu/armv7/tegra124/Kconfig
@@ -6,6 +6,15 @@ choice
config TARGET_JETSON_TK1
bool "NVIDIA Tegra124 Jetson TK1 board"
+config TARGET_NYAN_BIG
+ bool "Google/NVIDIA Nyan-big Chrombook"
+ help
+ Nyan Big is a Tegra124 clamshell board that is very similar
+ to venice2, but it has a different panel, the sdcard CD and WP
+ sense are flipped, and it has a different revision of the AS3722
+ PMIC. The retail name is the Acer Chromebook 13 CB5-311-T7NN
+ (13.3-inch HD, NVIDIA Tegra K1, 2GB).
+
config TARGET_VENICE2
bool "NVIDIA Tegra124 Venice2"
@@ -15,6 +24,7 @@ config SYS_SOC
default "tegra124"
source "board/nvidia/jetson-tk1/Kconfig"
+source "board/nvidia/nyan-big/Kconfig"
source "board/nvidia/venice2/Kconfig"
endif
diff --git a/arch/arm/cpu/tegra20-common/pmu.c b/arch/arm/cpu/tegra20-common/pmu.c
index c595f70e93..36a76a24d9 100644
--- a/arch/arm/cpu/tegra20-common/pmu.c
+++ b/arch/arm/cpu/tegra20-common/pmu.c
@@ -6,6 +6,7 @@
*/
#include <common.h>
+#include <i2c.h>
#include <tps6586x.h>
#include <asm/io.h>
#include <asm/arch/tegra.h>
@@ -23,9 +24,13 @@
#define VDD_TRANSITION_STEP 0x06 /* 150mv */
#define VDD_TRANSITION_RATE 0x06 /* 3.52mv/us */
+#define PMI_I2C_ADDRESS 0x34 /* chip requires this address */
+
int pmu_set_nominal(void)
{
- int core, cpu, bus;
+ struct udevice *bus, *dev;
+ int core, cpu;
+ int ret;
/* by default, the table has been filled with T25 settings */
switch (tegra_get_chip_sku()) {
@@ -42,12 +47,18 @@ int pmu_set_nominal(void)
return -1;
}
- bus = tegra_i2c_get_dvc_bus_num();
- if (bus == -1) {
+ ret = tegra_i2c_get_dvc_bus(&bus);
+ if (ret) {
debug("%s: Cannot find DVC I2C bus\n", __func__);
- return -1;
+ return ret;
}
- tps6586x_init(bus);
+ ret = i2c_get_chip(bus, PMI_I2C_ADDRESS, &dev);
+ if (ret) {
+ debug("%s: Cannot find DVC I2C chip\n", __func__);
+ return ret;
+ }
+
+ tps6586x_init(dev);
tps6586x_set_pwm_mode(TPS6586X_PWM_SM1);
return tps6586x_adjust_sm0_sm1(core, cpu, VDD_TRANSITION_STEP,
VDD_TRANSITION_RATE, VDD_RELATION);