boards: st: correct RAM and/or Flash size in YAML board description

etienne-lms · cfriedt · commit 627fa91e42fb · 2025-10-31T10:38:25.000-04:00
Fix several RAM size that are wrong regarding what is defined in the
related board device tree.

In many cases, SoC DTSI files have been changed to split internal RAMs
and related boards YAML file was not updated accordingly. This is the
case of H5xx, H7xx

In the case of stm32g081b_eval, polarity bytes are not default enabled
hence the internal SRAM size of 36kB, not 32kB.

Stm32mp135f was wrongly set with 256KB RAM and Flash whereas the board
assigns 256MB for each.

Stm32mp157c_dk2 assigned SRAM1, SRAM2 and SRAM3 to Zephyr hence
providing 320kB of system RAM.

Fix several typos setting RAM size to 786 whereas 768 is expected.

Signed-off-by: Etienne Carriere &lt;etienne.carriere@st.com&gt;
diff --git a/boards/st/b_u585i_iot02a/b_u585i_iot02a.yaml b/boards/st/b_u585i_iot02a/b_u585i_iot02a.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 786
+ram: 768
 flash: 2048
 supported:
   - arduino_i2c
diff --git a/boards/st/nucleo_f303re/nucleo_f303re.yaml b/boards/st/nucleo_f303re/nucleo_f303re.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 80
+ram: 64
 flash: 512
 supported:
   - arduino_gpio
diff --git a/boards/st/nucleo_f446re/nucleo_f446re.yaml b/boards/st/nucleo_f446re/nucleo_f446re.yaml
@@ -15,6 +15,6 @@ supported:
   - i2c
   - can
   - backup_sram
-ram: 96
+ram: 128
 flash: 512
 vendor: st
diff --git a/boards/st/nucleo_f722ze/nucleo_f722ze.yaml b/boards/st/nucleo_f722ze/nucleo_f722ze.yaml
@@ -20,6 +20,6 @@ supported:
   - spi
   - usb_device
   - rtc
-ram: 256
+ram: 192
 flash: 512
 vendor: st
diff --git a/boards/st/nucleo_f767zi/nucleo_f767zi.yaml b/boards/st/nucleo_f767zi/nucleo_f767zi.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 512
+ram: 384
 flash: 2048
 supported:
   - adc
diff --git a/boards/st/nucleo_h533re/nucleo_h533re.yaml b/boards/st/nucleo_h533re/nucleo_h533re.yaml
@@ -7,7 +7,7 @@ type: mcu
 arch: arm
 toolchain:
   - zephyr
-ram: 272
+ram: 128
 flash: 512
 supported:
   - arduino_gpio
diff --git a/boards/st/nucleo_h563zi/nucleo_h563zi.yaml b/boards/st/nucleo_h563zi/nucleo_h563zi.yaml
@@ -4,7 +4,7 @@ type: mcu
 arch: arm
 toolchain:
   - zephyr
-ram: 640
+ram: 256
 flash: 2048
 supported:
   - arduino_gpio
diff --git a/boards/st/nucleo_h723zg/nucleo_h723zg.yaml b/boards/st/nucleo_h723zg/nucleo_h723zg.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 372
+ram: 320
 flash: 1024
 supported:
   - arduino_gpio
diff --git a/boards/st/nucleo_h745zi_q/nucleo_h745zi_q_stm32h745xx_m4.yaml b/boards/st/nucleo_h745zi_q/nucleo_h745zi_q_stm32h745xx_m4.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 288
+ram: 128
 flash: 1024
 supported:
   - arduino_gpio
diff --git a/boards/st/nucleo_h755zi_q/nucleo_h755zi_q_stm32h755xx_m4.yaml b/boards/st/nucleo_h755zi_q/nucleo_h755zi_q_stm32h755xx_m4.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 288
+ram: 128
 flash: 1024
 supported:
   - arduino_gpio
diff --git a/boards/st/nucleo_h7a3zi_q/nucleo_h7a3zi_q.yaml b/boards/st/nucleo_h7a3zi_q/nucleo_h7a3zi_q.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 1280
+ram: 256
 flash: 2048
 supported:
   - arduino_gpio
diff --git a/boards/st/nucleo_h7s3l8/nucleo_h7s3l8.yaml b/boards/st/nucleo_h7s3l8/nucleo_h7s3l8.yaml
@@ -4,7 +4,7 @@ type: mcu
 arch: arm
 toolchain:
   - zephyr
-ram: 640
+ram: 128
 flash: 64
 supported:
   - gpio
diff --git a/boards/st/nucleo_l412rb_p/nucleo_l412rb_p.yaml b/boards/st/nucleo_l412rb_p/nucleo_l412rb_p.yaml
@@ -6,7 +6,7 @@ toolchain:
   - zephyr
   - gnuarmemb
 ram: 40
-flash: 64
+flash: 128
 supported:
   - nvs
   - pwm
diff --git a/boards/st/nucleo_u031r8/nucleo_u031r8.yaml b/boards/st/nucleo_u031r8/nucleo_u031r8.yaml
@@ -12,5 +12,5 @@ supported:
   - i2c
   - pwm
   - usart
-ram: 12
+ram: 8
 flash: 64
diff --git a/boards/st/nucleo_u083rc/nucleo_u083rc.yaml b/boards/st/nucleo_u083rc/nucleo_u083rc.yaml
@@ -19,5 +19,5 @@ supported:
   - rtc
   - spi
   - usart
-ram: 40
+ram: 32
 flash: 256
diff --git a/boards/st/nucleo_u575zi_q/nucleo_u575zi_q.yaml b/boards/st/nucleo_u575zi_q/nucleo_u575zi_q.yaml
@@ -21,6 +21,6 @@ supported:
   - backup_sram
   - dma
   - rtc
-ram: 786
+ram: 768
 flash: 2048
 vendor: st
diff --git a/boards/st/nucleo_u5a5zj_q/nucleo_u5a5zj_q.yaml b/boards/st/nucleo_u5a5zj_q/nucleo_u5a5zj_q.yaml
@@ -22,5 +22,5 @@ supported:
   - dma
   - rtc
   - usb_device
-ram: 2450
+ram: 2496
 flash: 4096
diff --git a/boards/st/nucleo_wba65ri/nucleo_wba65ri.yaml b/boards/st/nucleo_wba65ri/nucleo_wba65ri.yaml
@@ -15,6 +15,6 @@ supported:
   - arduino_gpio
   - arduino_i2c
   - arduino_spi
-ram: 512
+ram: 448
 flash: 2048
 vendor: st
diff --git a/boards/st/sensortile_box/sensortile_box.yaml b/boards/st/sensortile_box/sensortile_box.yaml
@@ -14,6 +14,6 @@ supported:
   - usbd
   - nvs
   - counter
-ram: 640
+ram: 192
 flash: 2048
 vendor: st
diff --git a/boards/st/sensortile_box_pro/sensortile_box_pro.yaml b/boards/st/sensortile_box_pro/sensortile_box_pro.yaml
@@ -14,6 +14,6 @@ supported:
   - usbd
   - nvs
   - counter
-ram: 640
+ram: 768
 flash: 2048
 vendor: st
diff --git a/boards/st/st25dv_mb1283_disco/st25dv_mb1283_disco.yaml b/boards/st/st25dv_mb1283_disco/st25dv_mb1283_disco.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 192
+ram: 128
 flash: 1024
 supported:
   - gpio
diff --git a/boards/st/steval_stwinbx1/steval_stwinbx1.yaml b/boards/st/steval_stwinbx1/steval_stwinbx1.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 786
+ram: 768
 flash: 2048
 supported:
   - counter
diff --git a/boards/st/stm32f7508_dk/stm32f7508_dk.yaml b/boards/st/stm32f7508_dk/stm32f7508_dk.yaml
@@ -8,7 +8,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 320
+ram: 256
 flash: 64
 supported:
   - arduino_i2c
diff --git a/boards/st/stm32g081b_eval/stm32g081b_eval.yaml b/boards/st/stm32g081b_eval/stm32g081b_eval.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 32
+ram: 36
 flash: 128
 supported:
   - adc
diff --git a/boards/st/stm32h573i_dk/stm32h573i_dk.yaml b/boards/st/stm32h573i_dk/stm32h573i_dk.yaml
@@ -4,7 +4,7 @@ type: mcu
 arch: arm
 toolchain:
   - zephyr
-ram: 640
+ram: 256
 flash: 2048
 supported:
   - arduino_gpio
diff --git a/boards/st/stm32h573i_dk/stm32h573i_dk_stm32h573xx_ext_flash_app.yaml b/boards/st/stm32h573i_dk/stm32h573i_dk_stm32h573xx_ext_flash_app.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
 sysbuild: true
-ram: 640
+ram: 256
 flash: 32767 # size in kB of 1 app slot minus MCUboot header size (1KB)
 supported:
   - arduino_gpio
diff --git a/boards/st/stm32h735g_disco/stm32h735g_disco.yaml b/boards/st/stm32h735g_disco/stm32h735g_disco.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 368
+ram: 320
 flash: 1024
 supported:
   - gpio
diff --git a/boards/st/stm32h745i_disco/stm32h745i_disco_stm32h745xx_m4.yaml b/boards/st/stm32h745i_disco/stm32h745i_disco_stm32h745xx_m4.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 288
+ram: 128
 flash: 1024
 supported:
   - arduino_gpio
diff --git a/boards/st/stm32h747i_disco/stm32h747i_disco_stm32h747xx_m4.yaml b/boards/st/stm32h747i_disco/stm32h747i_disco_stm32h747xx_m4.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 288
+ram: 128
 flash: 1024
 supported:
   - arduino_gpio
diff --git a/boards/st/stm32h750b_dk/stm32h750b_dk.yaml b/boards/st/stm32h750b_dk/stm32h750b_dk.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 1024
+ram: 512
 flash: 128
 supported:
   - arduino_gpio
diff --git a/boards/st/stm32h750b_dk/stm32h750b_dk_stm32h750xx_ext_flash_app.yaml b/boards/st/stm32h750b_dk/stm32h750b_dk_stm32h750xx_ext_flash_app.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
 sysbuild: true
-ram: 1024
+ram: 512
 flash: 61439  # size in kB of 1 app slot minus MCUboot header size (1KB)
 supported:
   - arduino_gpio
diff --git a/boards/st/stm32h757i_eval/stm32h757i_eval_stm32h757xx_m4.yaml b/boards/st/stm32h757i_eval/stm32h757i_eval_stm32h757xx_m4.yaml
@@ -6,7 +6,7 @@ toolchain:
   - zephyr
   - gnuarmemb
   - xtools
-ram: 288
+ram: 128
 flash: 1024
 supported:
   - gpio
diff --git a/boards/st/stm32h757i_eval/stm32h757i_eval_stm32h757xx_m7.yaml b/boards/st/stm32h757i_eval/stm32h757i_eval_stm32h757xx_m7.yaml
@@ -6,7 +6,7 @@ toolchain:
   - zephyr
   - gnuarmemb
   - xtools
-ram: 2048
+ram: 512
 flash: 1024
 supported:
   - gpio
diff --git a/boards/st/stm32h7b3i_dk/stm32h7b3i_dk.yaml b/boards/st/stm32h7b3i_dk/stm32h7b3i_dk.yaml
@@ -5,7 +5,7 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 1376
+ram: 256
 flash: 2048
 supported:
   - arduino_gpio
diff --git a/boards/st/stm32mp135f_dk/twister.yaml b/boards/st/stm32mp135f_dk/twister.yaml
@@ -9,6 +9,6 @@ supported:
   - gpio
   - uart
   - shell
-ram: 256
-flash: 256
+ram: 262144
+flash: 262144
 vendor: st
diff --git a/boards/st/stm32mp157c_dk2/stm32mp157c_dk2.yaml b/boards/st/stm32mp157c_dk2/stm32mp157c_dk2.yaml
@@ -22,6 +22,6 @@ testing:
     - cmm
     - LED
     - nfc
-ram: 256
+ram: 320
 flash: 64
 vendor: st
diff --git a/boards/st/stm32u083c_dk/stm32u083c_dk.yaml b/boards/st/stm32u083c_dk/stm32u083c_dk.yaml
@@ -16,5 +16,5 @@ supported:
   - pwm
   - usart
   - tsc
-ram: 40
+ram: 32
 flash: 256
diff --git a/boards/st/stm32u5g9j_dk1/stm32u5g9j_dk1.yaml b/boards/st/stm32u5g9j_dk1/stm32u5g9j_dk1.yaml
@@ -21,6 +21,6 @@ supported:
   - timer
   - rng
   - rtc
-ram: 3072
+ram: 3008
 flash: 4096
 vendor: st
diff --git a/boards/st/stm32wb5mm_dk/stm32wb5mm_dk.yaml b/boards/st/stm32wb5mm_dk/stm32wb5mm_dk.yaml
@@ -5,8 +5,8 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 256
-flash: 876
+ram: 192
+flash: 808
 supported:
   - gpio
   - uart
diff --git a/boards/st/stm32wb5mmg/stm32wb5mmg.yaml b/boards/st/stm32wb5mmg/stm32wb5mmg.yaml
@@ -5,8 +5,8 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 256
-flash: 1024
+ram: 192
+flash: 808
 supported:
   - gpio
   - dma
diff --git a/boards/st/stm32wba65i_dk1/stm32wba65i_dk1.yaml b/boards/st/stm32wba65i_dk1/stm32wba65i_dk1.yaml
@@ -5,6 +5,6 @@ arch: arm
 toolchain:
   - zephyr
   - gnuarmemb
-ram: 512
+ram: 448
 flash: 2048
 vendor: st
