boards: stm32h747i_disco: enable SDRAM
Enable SDRAM on M7 core.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
diff --git a/boards/arm/stm32h747i_disco/doc/index.rst b/boards/arm/stm32h747i_disco/doc/index.rst
index a3486c9..b4f1366 100644
--- a/boards/arm/stm32h747i_disco/doc/index.rst
+++ b/boards/arm/stm32h747i_disco/doc/index.rst
@@ -67,6 +67,8 @@
+-----------+------------+-------------------------------------+
| RNG | on-chip | True Random number generator |
+-----------+------------+-------------------------------------+
+| FMC | on-chip | memc (SDRAM) |
++-----------+------------+-------------------------------------+
(*) From UM2411 Rev 4:
With the default setting, the Ethernet feature is not working because of
diff --git a/boards/arm/stm32h747i_disco/stm32h747i_disco_m7.dts b/boards/arm/stm32h747i_disco/stm32h747i_disco_m7.dts
index ff2ec85..15a3fee 100644
--- a/boards/arm/stm32h747i_disco/stm32h747i_disco_m7.dts
+++ b/boards/arm/stm32h747i_disco/stm32h747i_disco_m7.dts
@@ -21,6 +21,11 @@
zephyr,flash = &flash0;
};
+ sdram2: sdram@d0000000 {
+ device_type = "memory";
+ reg = <0xd0000000 DT_SIZE_M(32)>;
+ };
+
leds {
green_led_1:led_1 {
status = "okay";
@@ -74,3 +79,45 @@
&rng {
status = "okay";
};
+
+&fmc {
+ status = "okay";
+ pinctrl-0 = <&fmc_nbl0_pe0 &fmc_nbl1_pe1 &fmc_nbl2_pi4 &fmc_nbl3_pi5
+ &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_a12_pg2
+ &fmc_a13_pg3 &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 &fmc_d16_ph8
+ &fmc_d17_ph9 &fmc_d18_ph10 &fmc_d19_ph11 &fmc_d20_ph12
+ &fmc_d21_ph13 &fmc_d22_ph14 &fmc_d23_ph15 &fmc_d24_pi0
+ &fmc_d26_pi2 &fmc_d27_pi3 &fmc_d28_pi6 &fmc_d29_pi7
+ &fmc_d30_pi9 &fmc_d31_pi10>;
+
+ sdram {
+ status = "okay";
+
+ power-up-delay = <100>;
+ num-auto-refresh = <8>;
+ mode-register = <0x220>;
+ refresh-rate = <603>;
+
+ bank@1 {
+ reg = <1>;
+
+ st,sdram-control = <STM32_FMC_SDRAM_NC_9
+ STM32_FMC_SDRAM_NR_12
+ STM32_FMC_SDRAM_MWID_32
+ STM32_FMC_SDRAM_NB_4
+ STM32_FMC_SDRAM_CAS_2
+ STM32_FMC_SDRAM_SDCLK_PERIOD_2
+ STM32_FMC_SDRAM_RBURST_ENABLE
+ STM32_FMC_SDRAM_RPIPE_0>;
+ st,sdram-timing = <2 6 4 6 2 2 2>;
+ };
+ };
+};
diff --git a/boards/arm/stm32h747i_disco/stm32h747i_disco_m7.yaml b/boards/arm/stm32h747i_disco/stm32h747i_disco_m7.yaml
index 2758d90..d9dd1f5 100644
--- a/boards/arm/stm32h747i_disco/stm32h747i_disco_m7.yaml
+++ b/boards/arm/stm32h747i_disco/stm32h747i_disco_m7.yaml
@@ -12,3 +12,4 @@
- arduino_gpio
- gpio
- netif:eth
+ - memc
