[coreboot-gerrit] Patch set updated for coreboot: a19e0d0 rk3288: set the rk808 BUCK default inductor current to max value
Patrick Georgi (pgeorgi@google.com)
gerrit at coreboot.org
Tue Apr 14 09:45:50 CEST 2015
Patrick Georgi (pgeorgi at google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/9655
-gerrit
commit a19e0d0ec074dc51ff1fa9f0a9df48c81af6043a
Author: huang lin <hl at rock-chips.com>
Date: Fri Jan 23 14:48:42 2015 +0800
rk3288: set the rk808 BUCK default inductor current to max value
Our use of the bucks may exceed their default maximum inductor current.
Just set it to the highest possible value for every buck we configure to
avoid problems... the kernel can later fine-tune the values further if
needed. (Also some slight grammar updates while I'm in there.)
BRANCH=veyron
TEST=Build and Boot on Jerry
BUG=None
Change-Id: If8258cf4feefe191604365405bff1f20c8ab8746
Signed-off-by: Stefan Reinauer <reinauer at chromium.org>
Original-Commit-Id: 065a163bb902b8c96d05bfef6ed4885aa20f31cc
Original-Change-Id: I3801cabeb93d7bf7ecc02db0e69d4932c9394db9
Original-Signed-off-by: huang lin <hl at rock-chips.com>
Original-Signed-off-by: Julius Werner <jwerner at chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/242785
Original-Reviewed-by: Douglas Anderson <dianders at chromium.org>
---
src/soc/rockchip/rk3288/rk808.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/src/soc/rockchip/rk3288/rk808.c b/src/soc/rockchip/rk3288/rk808.c
index b763454..d375f46 100644
--- a/src/soc/rockchip/rk3288/rk808.c
+++ b/src/soc/rockchip/rk3288/rk808.c
@@ -54,6 +54,8 @@
#define RTC_CTRL_GET_TIME (1 << 6)
#define RTC_CTRL_RTC_READSEL (1 << 7)
+#define DCDC_ILMAX 0x90
+
static int rk808_read(uint8_t reg, uint8_t *value)
{
return i2c_readb(CONFIG_PMIC_BUS, RK808_ADDR, reg, value);
@@ -118,7 +120,7 @@ void rk808_configure_buck(int buck, int millivolts)
switch (buck) {
case 1:
case 2:
- /*base on 725mv, use 25mv step */
+ /* 25mV steps. base = 29 * 25mV = 725 */
vsel = (div_round_up(millivolts, 25) - 29) * 2 + 1;
assert(vsel <= 0x3f);
buck_reg = BUCK1SEL + 4 * (buck - 1);
@@ -129,8 +131,9 @@ void rk808_configure_buck(int buck, int millivolts)
buck_reg = BUCK4SEL;
break;
default:
- die("fault buck index!");
+ die("Unknown buck index!");
}
+ rk808_clrsetbits(DCDC_ILMAX, 0, 3 << ((buck - 1) * 2));
rk808_clrsetbits(buck_reg, 0x3f, vsel);
rk808_clrsetbits(DCDC_EN, 0, 1 << (buck - 1));
}
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