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-rw-r--r--chip/stm32/config-stm32f07x.h3
-rw-r--r--chip/stm32/config_chip.h2
2 files changed, 5 insertions, 0 deletions
diff --git a/chip/stm32/config-stm32f07x.h b/chip/stm32/config-stm32f07x.h
index a40f0f1057..843f8886bf 100644
--- a/chip/stm32/config-stm32f07x.h
+++ b/chip/stm32/config-stm32f07x.h
@@ -40,3 +40,6 @@
/* Reduced history because of limited RAM */
#undef CONFIG_CONSOLE_HISTORY
#define CONFIG_CONSOLE_HISTORY 3
+
+/* STM32F0 has a larger USB RAM */
+#define CONFIG_USB_RAM_SIZE 1024
diff --git a/chip/stm32/config_chip.h b/chip/stm32/config_chip.h
index 366311d09b..d3143d8c86 100644
--- a/chip/stm32/config_chip.h
+++ b/chip/stm32/config_chip.h
@@ -87,6 +87,8 @@
/* Dedicated SRAM region for USB transfers */
#define CONFIG_USB_RAM_BASE 0x40006000
+#ifndef CONFIG_USB_RAM_SIZE
#define CONFIG_USB_RAM_SIZE 512
+#endif
#endif /* __CROS_EC_CONFIG_CHIP_H */