From 08884e39cd3c7d0d0250e0e7921d12b5ae10ada1 Mon Sep 17 00:00:00 2001 From: huang lin Date: Fri, 10 Oct 2014 20:28:47 -0700 Subject: rk3288: set cpu frequency up to 1.8GHz before the rkclk_init(), we must set rk808 buck1 voltage up to 1300mv BUG=chrome-os-partner:32716, chrome-os-partner:31896 TEST=Boot on veyron_pinky rev2,check the rk808 buck1 voltage 1300mv and check the cpu frequency up to 1.8GHz Original-Change-Id: I6a8c6e35bd7cc6017f2def72876a9170977f206e Original-Signed-off-by: huang lin Original-Reviewed-on: https://chromium-review.googlesource.com/222957 Original-Reviewed-by: Doug Anderson (cherry picked from commit 2e7e7c265691250d4a1b3ff94fe70b0a05f23e16) Signed-off-by: Aaron Durbin Change-Id: Iff89d959456dd4d36f4293435caf7b4f7bdaf6fd Reviewed-on: http://review.coreboot.org/9260 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/mainboard/google/veyron_pinky/bootblock.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'src/mainboard/google') diff --git a/src/mainboard/google/veyron_pinky/bootblock.c b/src/mainboard/google/veyron_pinky/bootblock.c index 3ed8e273c7..a66d7482d2 100644 --- a/src/mainboard/google/veyron_pinky/bootblock.c +++ b/src/mainboard/google/veyron_pinky/bootblock.c @@ -22,11 +22,24 @@ #include #include #include +#include +#include +#include +#include #include +#include "board.h" + void bootblock_mainboard_init(void) { - /* i2c1 for tpm*/ + /* cpu frequency will up to 1.8GHz, so the buck1 must up to 1.3v */ + setbits_le32(&rk3288_pmu->iomux_i2c0scl, IOMUX_I2C0SCL); + setbits_le32(&rk3288_pmu->iomux_i2c0sda, IOMUX_I2C0SDA); + i2c_init(PMIC_BUS, 400*KHz); + rk808_configure_buck(PMIC_BUS, 1, 1300); + rkclk_configure_cpu(); + + /* i2c1 for tpm */ writel(IOMUX_I2C1, &rk3288_grf->iomux_i2c1); /* spi2 for firmware ROM */ -- cgit v1.2.3