[PATCH 1/2] ARM: imx: imx8m: Align PLL 1.2 GHz option with Linux

Marek Vasut marex at denx.de
Tue Jan 25 03:48:05 CET 2022


Linux uses slightly different divider settings for the 1.2 GHz PLL
configuration, adjust the coefficients to match Linux.

Signed-off-by: Marek Vasut <marex at denx.de>
Cc: Peng Fan <peng.fan at nxp.com>
Cc: Stefano Babic <sbabic at denx.de>
---
 arch/arm/mach-imx/imx8m/clock_imx8mm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-imx/imx8m/clock_imx8mm.c b/arch/arm/mach-imx/imx8m/clock_imx8mm.c
index f8e4ec0d905..2ca3bf68e74 100644
--- a/arch/arm/mach-imx/imx8m/clock_imx8mm.c
+++ b/arch/arm/mach-imx/imx8m/clock_imx8mm.c
@@ -244,9 +244,9 @@ int intpll_configure(enum pll_clocks pll, ulong freq)
 			INTPLL_PRE_DIV_VAL(3) | INTPLL_POST_DIV_VAL(1);
 		break;
 	case MHZ(1200):
-		/* 24 * 0xc8 / 2 / 2 ^ 1 */
-		pll_div_ctl_val = INTPLL_MAIN_DIV_VAL(0xc8) |
-			INTPLL_PRE_DIV_VAL(2) | INTPLL_POST_DIV_VAL(1);
+		/* 24 * 0x12c / 3 / 2 ^ 1 */
+		pll_div_ctl_val = INTPLL_MAIN_DIV_VAL(0x12c) |
+			INTPLL_PRE_DIV_VAL(3) | INTPLL_POST_DIV_VAL(1);
 		break;
 	case MHZ(2000):
 		/* 24 * 0xfa / 3 / 2 ^ 0 */
-- 
2.34.1



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