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rk3288: set cpu frequency up to 1.8GHz

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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 <hl@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/222957
Original-Reviewed-by: Doug Anderson <dianders@chromium.org>

(cherry picked from commit 2e7e7c265691250d4a1b3ff94fe70b0a05f23e16)
Signed-off-by: Aaron Durbin <adurbin@chromium.org>

Change-Id: Iff89d959456dd4d36f4293435caf7b4f7bdaf6fd
Reviewed-on: http://review.coreboot.org/9260
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
huang lin
2014-10-10 20:28:47 -07:00
committed by Aaron Durbin
parent 8affee5897
commit 08884e39cd
6 changed files with 96 additions and 34 deletions
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15
src/mainboard/google/veyron_pinky/bootblock.c
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@@ -22,11 +22,24 @@
#include <bootblock_common.h>
#include <soc/rockchip/rk3288/grf.h>
#include <soc/rockchip/rk3288/spi.h>
#include <soc/rockchip/rk3288/rk808.h>
#include <soc/rockchip/rk3288/clock.h>
#include <soc/rockchip/rk3288/pmu.h>
#include <soc/rockchip/rk3288/i2c.h>
#include <vendorcode/google/chromeos/chromeos.h>
#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 */