[PATCH 1/2] ARM: imx: imx8m: Align PLL 1.2 GHz option with Linux
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@denx.de Cc: Peng Fan peng.fan@nxp.com Cc: Stefano Babic sbabic@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 */
Add PLL 1.4 GHz, 1.5 GHz, 1.6 GHz, 1.8 GHz options for iMX8M SoCs in case they should be operated faster, e.g. to improve boot time.
Signed-off-by: Marek Vasut marex@denx.de Cc: Peng Fan peng.fan@nxp.com Cc: Stefano Babic sbabic@denx.de --- arch/arm/mach-imx/imx8m/clock_imx8mm.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/arch/arm/mach-imx/imx8m/clock_imx8mm.c b/arch/arm/mach-imx/imx8m/clock_imx8mm.c index 2ca3bf68e74..76132defc21 100644 --- a/arch/arm/mach-imx/imx8m/clock_imx8mm.c +++ b/arch/arm/mach-imx/imx8m/clock_imx8mm.c @@ -248,6 +248,26 @@ int intpll_configure(enum pll_clocks pll, ulong freq) pll_div_ctl_val = INTPLL_MAIN_DIV_VAL(0x12c) | INTPLL_PRE_DIV_VAL(3) | INTPLL_POST_DIV_VAL(1); break; + case MHZ(1400): + /* 24 * 0x15e / 3 / 2 ^ 1 */ + pll_div_ctl_val = INTPLL_MAIN_DIV_VAL(0x15e) | + INTPLL_PRE_DIV_VAL(3) | INTPLL_POST_DIV_VAL(1); + break; + case MHZ(1500): + /* 24 * 0x177 / 3 / 2 ^ 1 */ + pll_div_ctl_val = INTPLL_MAIN_DIV_VAL(0x177) | + INTPLL_PRE_DIV_VAL(3) | INTPLL_POST_DIV_VAL(1); + break; + case MHZ(1600): + /* 24 * 0xc8 / 3 / 2 ^ 0 */ + pll_div_ctl_val = INTPLL_MAIN_DIV_VAL(0xc8) | + INTPLL_PRE_DIV_VAL(3) | INTPLL_POST_DIV_VAL(0); + break; + case MHZ(1800): + /* 24 * 0xe1 / 3 / 2 ^ 0 */ + pll_div_ctl_val = INTPLL_MAIN_DIV_VAL(0xe1) | + INTPLL_PRE_DIV_VAL(3) | INTPLL_POST_DIV_VAL(0); + break; case MHZ(2000): /* 24 * 0xfa / 3 / 2 ^ 0 */ pll_div_ctl_val = INTPLL_MAIN_DIV_VAL(0xfa) |
Add PLL 1.4 GHz, 1.5 GHz, 1.6 GHz, 1.8 GHz options for iMX8M SoCs in case they should be operated faster, e.g. to improve boot time. Signed-off-by: Marek Vasut marex@denx.de Cc: Peng Fan peng.fan@nxp.com Cc: Stefano Babic sbabic@denx.de
Applied to u-boot-imx, master, thanks !
Best regards, Stefano Babic
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@denx.de Cc: Peng Fan peng.fan@nxp.com Cc: Stefano Babic sbabic@denx.de
Applied to u-boot-imx, master, thanks !
Best regards, Stefano Babic
participants (2)
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Marek Vasut -
sbabic＠denx.de