boards: arm: stm32h750b_dk: add support for sdram (1d23ac55) · Commits · Wenxi XU / zephyr

boards/arm/stm32h750b_dk/stm32h750b_dk.dts

+44 −0

Changes for boards/arm/stm32h750b_dk/stm32h750b_dk.dts: 44 added lines, 0 removed lines.
Original line number	Diff line number	Diff line
		@@ -21,6 +21,14 @@
		zephyr,flash-controller = &mt25ql512ab1;
		};

		sdram2: sdram@d0000000 {
		compatible = "zephyr,memory-region", "mmio-sram";
		device_type = "memory";
		reg = <0xd0000000 DT_SIZE_M(16)>; /* 128Mbit */
		zephyr,memory-region = "SDRAM2";
		zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_RAM) )>;
		};

		leds {
		compatible = "gpio-leds";
		red_led: led_1 {
		@@ -121,3 +129,39 @@
		status = "okay";
		};
		};

		&fmc {
		pinctrl-0 = <&fmc_nbl0_pe0 &fmc_nbl1_pe1
		&fmc_sdclk_pg8 &fmc_sdnwe_ph5 &fmc_sdcke1_ph7
		&fmc_sdne1_ph6 &fmc_sdnras_pf11 &fmc_sdncas_pg15
		&fmc_a0_pf0 &fmc_a1_pf1 &fmc_a2_pf2 &fmc_a3_pf3 &fmc_a4_pf4
		&fmc_a5_pf5 &fmc_a6_pf12 &fmc_a7_pf13 &fmc_a8_pf14
		&fmc_a9_pf15 &fmc_a10_pg0 &fmc_a11_pg1
		&fmc_a14_pg4 &fmc_a15_pg5 &fmc_d0_pd14 &fmc_d1_pd15
		&fmc_d2_pd0 &fmc_d3_pd1 &fmc_d4_pe7 &fmc_d5_pe8 &fmc_d6_pe9
		&fmc_d7_pe10 &fmc_d8_pe11 &fmc_d9_pe12 &fmc_d10_pe13
		&fmc_d11_pe14 &fmc_d12_pe15 &fmc_d13_pd8 &fmc_d14_pd9
		&fmc_d15_pd10>;
		pinctrl-names = "default";
		status = "okay";

		sdram {
		status = "okay";
		power-up-delay = <100>;
		num-auto-refresh = <8>;
		mode-register = <0x220>;
		refresh-rate = <0x603>;
		bank@1 {
		reg = <1>;
		st,sdram-control = <STM32_FMC_SDRAM_NC_8
		STM32_FMC_SDRAM_NR_12
		STM32_FMC_SDRAM_MWID_16
		STM32_FMC_SDRAM_NB_4
		STM32_FMC_SDRAM_CAS_3
		STM32_FMC_SDRAM_SDCLK_PERIOD_2
		STM32_FMC_SDRAM_RBURST_ENABLE
		STM32_FMC_SDRAM_RPIPE_0>;
		st,sdram-timing = <2 7 4 7 2 2 2>;
		};
		};
		};