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| author | Tom Rini <trini@ti.com> | 2014-12-11 20:47:34 -0500 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-12-11 20:47:34 -0500 |
| commit | a5a58826110eb3da2956c6b3213bd750e166d75c (patch) | |
| tree | 50d21157a7118c6b2b13e7763452332f2d9b51fd /arch/arm/cpu/tegra20-common/pmu.c | |
| parent | fc9b0b80435cda721fbdbe507c9e4f388b0ea62b (diff) | |
| parent | b0e6ef46405353270595ffa35c21f4334c541189 (diff) | |
| download | u-boot-imx-a5a58826110eb3da2956c6b3213bd750e166d75c.zip u-boot-imx-a5a58826110eb3da2956c6b3213bd750e166d75c.tar.gz u-boot-imx-a5a58826110eb3da2956c6b3213bd750e166d75c.tar.bz2 | |
Merge git://git.denx.de/u-boot-dm
Diffstat (limited to 'arch/arm/cpu/tegra20-common/pmu.c')
| -rw-r--r-- | arch/arm/cpu/tegra20-common/pmu.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/arch/arm/cpu/tegra20-common/pmu.c b/arch/arm/cpu/tegra20-common/pmu.c index c595f70..36a76a2 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); |