mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-02 16:23:46 +09:00
e5899099ab
The PLL4 is supplying SDMMC12, SDMMC3 and SPDIF with 120 MHz and FDCAN with 96 MHz. This isn't good for the SDMMC interfaces, which can not easily divide the clock down to e.g. 50 MHz for high speed SD and eMMC devices, so those devices end up running at 30 MHz as that is 120 MHz / 4. Adjust the PLL4 settings such that both PLL4P and PLL4R run at 100 MHz instead, which is easy to divide to 50MHz for optimal operation of both SD and eMMC, SPDIF clock are not that much slower and FDCAN is also unaffected. Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Cc: Patrick Delaunay <patrick.delaunay@st.com> Cc: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
205 lines
3.0 KiB
Plaintext
205 lines
3.0 KiB
Plaintext
// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
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/*
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* Copyright : STMicroelectronics 2018
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*
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* Copyright (C) Linaro Ltd 2019 - All Rights Reserved
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* Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
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*/
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#include <dt-bindings/clock/stm32mp1-clksrc.h>
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#include "stm32mp15-u-boot.dtsi"
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#include "stm32mp15-ddr3-2x4Gb-1066-binG.dtsi"
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/ {
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aliases {
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mmc0 = &sdmmc1;
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mmc1 = &sdmmc2;
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usb0 = &usbotg_hs;
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};
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config {
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u-boot,boot-led = "led1";
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u-boot,error-led = "led4";
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};
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};
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&i2c4 {
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u-boot,dm-pre-reloc;
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};
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&i2c4_pins_a {
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u-boot,dm-pre-reloc;
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pins {
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u-boot,dm-pre-reloc;
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};
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};
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&pmic {
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u-boot,dm-pre-reloc;
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};
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&rcc {
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st,clksrc = <
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CLK_MPU_PLL1P
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CLK_AXI_PLL2P
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CLK_MCU_PLL3P
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CLK_PLL12_HSE
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CLK_PLL3_HSE
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CLK_PLL4_HSE
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CLK_RTC_LSE
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CLK_MCO1_DISABLED
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CLK_MCO2_DISABLED
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>;
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st,clkdiv = <
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1 /*MPU*/
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0 /*AXI*/
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0 /*MCU*/
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1 /*APB1*/
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1 /*APB2*/
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1 /*APB3*/
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1 /*APB4*/
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2 /*APB5*/
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23 /*RTC*/
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0 /*MCO1*/
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0 /*MCO2*/
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>;
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st,pkcs = <
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CLK_CKPER_HSE
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CLK_FMC_ACLK
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CLK_QSPI_ACLK
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CLK_ETH_DISABLED
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CLK_SDMMC12_PLL4P
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CLK_DSI_DSIPLL
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CLK_STGEN_HSE
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CLK_USBPHY_HSE
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CLK_SPI2S1_PLL3Q
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CLK_SPI2S23_PLL3Q
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CLK_SPI45_HSI
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CLK_SPI6_HSI
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CLK_I2C46_HSI
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CLK_SDMMC3_PLL4P
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CLK_USBO_USBPHY
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CLK_ADC_CKPER
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CLK_CEC_LSE
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CLK_I2C12_HSI
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CLK_I2C35_HSI
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CLK_UART1_HSI
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CLK_UART24_HSI
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CLK_UART35_HSI
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CLK_UART6_HSI
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CLK_UART78_HSI
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CLK_SPDIF_PLL4P
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CLK_FDCAN_PLL4R
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CLK_SAI1_PLL3Q
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CLK_SAI2_PLL3Q
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CLK_SAI3_PLL3Q
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CLK_SAI4_PLL3Q
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CLK_RNG1_LSI
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CLK_RNG2_LSI
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CLK_LPTIM1_PCLK1
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CLK_LPTIM23_PCLK3
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CLK_LPTIM45_LSE
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>;
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/* VCO = 1300.0 MHz => P = 650 (CPU) */
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pll1: st,pll@0 {
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compatible = "st,stm32mp1-pll";
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reg = <0>;
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cfg = < 2 80 0 0 0 PQR(1,0,0) >;
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frac = < 0x800 >;
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u-boot,dm-pre-reloc;
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};
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/* VCO = 1066.0 MHz => P = 266 (AXI), Q = 533 (GPU), R = 533 (DDR) */
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pll2: st,pll@1 {
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compatible = "st,stm32mp1-pll";
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reg = <1>;
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cfg = < 2 65 1 0 0 PQR(1,1,1) >;
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frac = < 0x1400 >;
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u-boot,dm-pre-reloc;
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};
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/* VCO = 417.8 MHz => P = 209, Q = 24, R = 11 */
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pll3: st,pll@2 {
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compatible = "st,stm32mp1-pll";
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reg = <2>;
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cfg = < 1 33 1 16 36 PQR(1,1,1) >;
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frac = < 0x1a04 >;
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u-boot,dm-pre-reloc;
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};
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/* VCO = 600.0 MHz => P = 100, Q = 50, R = 100 */
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pll4: st,pll@3 {
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compatible = "st,stm32mp1-pll";
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reg = <3>;
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cfg = < 1 49 5 11 5 PQR(1,1,1) >;
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u-boot,dm-pre-reloc;
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};
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};
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&sdmmc1 {
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u-boot,dm-spl;
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};
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&sdmmc1_b4_pins_a {
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u-boot,dm-spl;
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pins1 {
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u-boot,dm-spl;
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};
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pins2 {
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u-boot,dm-spl;
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};
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};
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&sdmmc1_dir_pins_b {
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u-boot,dm-spl;
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pins1 {
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u-boot,dm-spl;
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};
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pins2 {
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u-boot,dm-spl;
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};
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};
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&sdmmc2 {
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u-boot,dm-spl;
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};
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&sdmmc2_b4_pins_a {
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u-boot,dm-spl;
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pins1 {
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u-boot,dm-spl;
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};
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pins2 {
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u-boot,dm-spl;
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};
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};
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&sdmmc2_d47_pins_b {
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u-boot,dm-spl;
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pins {
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u-boot,dm-spl;
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};
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};
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&uart4 {
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u-boot,dm-pre-reloc;
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};
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&uart4_pins_b {
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u-boot,dm-pre-reloc;
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pins1 {
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u-boot,dm-pre-reloc;
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};
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pins2 {
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u-boot,dm-pre-reloc;
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};
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};
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&usbotg_hs {
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u-boot,force-b-session-valid;
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hnp-srp-disable;
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};
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