Messages in this thread Patch in this message | | | From | Erwan Le Ray <> | Subject | [PATCH v2 4/4] ARM: debug: stm32: add UART early console support for STM32MP1 | Date | Fri, 31 Jan 2020 14:41:23 +0100 |
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Add support of early console for STM32MP1. Default UART instance is UART4, but other UART instances can be configured by setting physical and virtual base addresses in menuconfig.
Signed-off-by: Erwan Le Ray <erwan.leray@st.com>
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index e5e1703a89c0..3357e294a7cc 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -1235,6 +1235,18 @@ choice If unsure, say N. + config STM32MP1_DEBUG_UART + bool "Use STM32MP1 UART for low-level debug" + depends on MACH_STM32MP157 + select DEBUG_STM32_UART + help + Say Y here if you want kernel low-level debugging support + on STM32MP1 based platforms, wich default UART is wired on + UART4, but another UART instance can be selected by modifying + CONFIG_DEBUG_UART_PHYS and CONFIG_DEBUG_UART_VIRT. + + If unsure, say N. + config TEGRA_DEBUG_UART_AUTO_ODMDATA bool "Kernel low-level debugging messages via Tegra UART via ODMDATA" depends on ARCH_TEGRA @@ -1633,6 +1645,7 @@ config DEBUG_UART_PHYS default 0x3e000000 if DEBUG_BCM_KONA_UART default 0x3f201000 if DEBUG_BCM2836 default 0x4000e400 if DEBUG_LL_UART_EFM32 + default 0x40010000 if STM32MP1_DEBUG_UART default 0x40011000 if STM32F4_DEBUG_UART || STM32F7_DEBUG_UART || \ STM32H7_DEBUG_UART default 0x40028000 if DEBUG_AT91_SAMV7_USART1 @@ -1795,6 +1808,7 @@ config DEBUG_UART_VIRT default 0xfcfe8600 if DEBUG_BCM63XX_UART default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX default 0xfd883000 if DEBUG_ALPINE_UART0 + default 0xfe010000 if STM32MP1_DEBUG_UART default 0xfe017000 if DEBUG_MMP_UART2 default 0xfe018000 if DEBUG_MMP_UART3 default 0xfe100000 if DEBUG_IMX23_UART || DEBUG_IMX28_UART diff --git a/arch/arm/include/debug/stm32.S b/arch/arm/include/debug/stm32.S index 5a2e2b065340..0301ab17c133 100644 --- a/arch/arm/include/debug/stm32.S +++ b/arch/arm/include/debug/stm32.S @@ -10,6 +10,7 @@ #endif #if defined(CONFIG_STM32F7_DEBUG_UART) || defined(CONFIG_STM32H7_DEBUG_UART) + defined(CONFIG_STM32MP1_DEBUG_UART) #define STM32_USART_SR_OFF 0x1C #define STM32_USART_TDR_OFF 0x28 #endif -- 2.17.1
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