dts: add device tree for STM32MP157C-ED1 board
Add minimal devicetree for STM32MP157C-ED1 board,
with only the devices to allow boot from SDCARD:
- RCC for clock and reset
- UART4 for console
- I2C and PMIC
- DDR
- SDMMC0 for SDCard
Waiting Kernel upstream for alignment.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
diff --git a/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi b/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
new file mode 100644
index 0000000..94d27fb
--- /dev/null
+++ b/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
@@ -0,0 +1,133 @@
+/*
+ * Copyright : STMicroelectronics 2018
+ *
+ * SPDX-License-Identifier: GPL-2.0+ BSD-3-Clause
+ */
+
+#include <dt-bindings/clock/stm32mp1-clksrc.h>
+#include "stm32mp157-u-boot.dtsi"
+#include "stm32mp15-ddr3-2x4Gb-1066-binG.dtsi"
+
+/ {
+ aliases {
+ mmc0 = &sdmmc1;
+ i2c3 = &i2c4;
+ };
+};
+
+&uart4_pins_a {
+ u-boot,dm-pre-reloc;
+ pins1 {
+ u-boot,dm-pre-reloc;
+ };
+ pins2 {
+ u-boot,dm-pre-reloc;
+ };
+};
+
+&i2c4_pins_a {
+ u-boot,dm-pre-reloc;
+ pins {
+ u-boot,dm-pre-reloc;
+ };
+};
+
+&uart4 {
+ u-boot,dm-pre-reloc;
+};
+
+&i2c4 {
+ u-boot,dm-pre-reloc;
+};
+
+&pmic {
+ u-boot,dm-pre-reloc;
+};
+
+/* CLOCK init */
+&rcc_clk {
+ st,clksrc = <
+ CLK_MPU_PLL1P
+ CLK_AXI_PLL2P
+ CLK_MCU_PLL3P
+ CLK_PLL12_HSE
+ CLK_PLL3_HSE
+ CLK_PLL4_HSE
+ CLK_RTC_LSE
+ CLK_MCO1_DISABLED
+ CLK_MCO2_DISABLED
+ >;
+
+ st,clkdiv = <
+ 1 /*MPU*/
+ 0 /*AXI*/
+ 0 /*MCU*/
+ 1 /*APB1*/
+ 1 /*APB2*/
+ 1 /*APB3*/
+ 1 /*APB4*/
+ 2 /*APB5*/
+ 23 /*RTC*/
+ 0 /*MCO1*/
+ 0 /*MCO2*/
+ >;
+
+ st,pkcs = <
+ CLK_CKPER_DISABLED
+ CLK_SDMMC12_PLL3R
+ CLK_I2C46_PCLK5
+ CLK_I2C12_PCLK1
+ CLK_I2C35_PCLK1
+ CLK_UART1_PCLK5
+ CLK_UART24_PCLK1
+ CLK_UART35_PCLK1
+ CLK_UART6_PCLK2
+ CLK_UART78_PCLK1
+ >;
+
+ /* VCO = 1300.0 MHz => P = 650 (CPU) */
+ pll1: st,pll@0 {
+ cfg = < 2 80 0 0 0 PQR(1,0,0) >;
+ frac = < 0x800 >;
+ u-boot,dm-pre-reloc;
+ };
+
+ /* VCO = 1066.0 MHz => P = 266 (AXI), Q = 533 (GPU), R = 533 (DDR) */
+ pll2: st,pll@1 {
+ cfg = < 2 65 1 0 0 PQR(1,1,1) >;
+ frac = < 0x1400 >;
+ u-boot,dm-pre-reloc;
+ };
+
+ /* VCO = 774.0 MHz => P = 194, Q = 37, R = 97 */
+ pll3: st,pll@2 {
+ cfg = < 3 128 3 20 7 PQR(1,1,1) >;
+ u-boot,dm-pre-reloc;
+ };
+
+ /* VCO = 508.0 MHz => P = 56, Q = 56, R = 56 */
+ pll4: st,pll@3 {
+ cfg = < 5 126 8 8 8 PQR(1,1,1) >;
+ u-boot,dm-pre-reloc;
+ };
+};
+
+/* SPL part **************************************/
+/* MMC1 boot */
+&sdmmc1_b4_pins_a {
+ u-boot,dm-spl;
+ pins {
+ u-boot,dm-spl;
+ };
+};
+
+&sdmmc1_dir_pins_a {
+ u-boot,dm-spl;
+ pins {
+ u-boot,dm-spl;
+ };
+};
+
+&sdmmc1 {
+ u-boot,dm-spl;
+};