[PATCH 3/3] sunxi: clock: H6: Adjust PLL LDO before clock setup

Jernej Skrabec jernej.skrabec at gmail.com
Sun Jan 30 15:27:15 CET 2022


BSP boot0 adjust PLL LDO regulator before clocks are initialized.
Let's do that.

Signed-off-by: Jernej Skrabec <jernej.skrabec at gmail.com>
---
 arch/arm/mach-sunxi/clock_sun50i_h6.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/mach-sunxi/clock_sun50i_h6.c b/arch/arm/mach-sunxi/clock_sun50i_h6.c
index 32119ad16555..7926394cf762 100644
--- a/arch/arm/mach-sunxi/clock_sun50i_h6.c
+++ b/arch/arm/mach-sunxi/clock_sun50i_h6.c
@@ -21,6 +21,13 @@ void clock_init_safe(void)
 	clrbits_le32(&prcm->res_cal_ctrl, 1);
 	setbits_le32(&prcm->res_cal_ctrl, 1);
 
+	if (IS_ENABLED(CONFIG_MACH_SUN50I_H6)) {
+		/* set key field for ldo enable */
+		setbits_le32(&prcm->pll_ldo_cfg, 0xA7000000);
+		/* set PLL VDD LDO output to 1.14 V */
+		setbits_le32(&prcm->pll_ldo_cfg, 0x60000);
+	}
+
 	clock_set_pll1(408000000);
 
 	writel(CCM_PLL6_DEFAULT, &ccm->pll6_cfg);
-- 
2.35.1



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