[PATCH 1/2] rockchip: clk: rk3188: change APLL to safe 600MHz

Alexander Kochetkov al.kochet at gmail.com
Mon Jun 22 15:17:09 CEST 2020


The commit 84a6a27ae3ff ("rockchip: rk3188: init CPU freq in clock
driver") changed ARM clock from 600MHz to 1600MHz. It made boot
unstable due to the fact that PMIC at the start generates insufficient
voltage for operation. See also: commit f4f57c58b589 ("rockchip:
rk3188: Setup the armclk in spl").

Fixes commit 84a6a27ae3ff ("rockchip: rk3188: init CPU freq in clock
driver").

Signed-off-by: Alexander Kochetkov <al.kochet at gmail.com>
---
 drivers/clk/rockchip/clk_rk3188.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/rockchip/clk_rk3188.c b/drivers/clk/rockchip/clk_rk3188.c
index b193ac913e..4fc5c78563 100644
--- a/drivers/clk/rockchip/clk_rk3188.c
+++ b/drivers/clk/rockchip/clk_rk3188.c
@@ -564,7 +564,8 @@ static int rk3188_clk_probe(struct udevice *dev)
 	rkclk_init(priv->cru, priv->grf, priv->has_bwadj);
 
 	/* Init CPU frequency */
-	rkclk_configure_cpu(priv->cru, priv->grf, APLL_HZ, priv->has_bwadj);
+	rkclk_configure_cpu(priv->cru, priv->grf, APLL_SAFE_HZ,
+			    priv->has_bwadj);
 #endif
 
 	return 0;
-- 
2.17.1



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