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ARM: debug: stm32: add UART early console configuration for STM32F4

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Early console is hardcoded on USART1 in current implementation.
With this patch, default UART instance is USART1, 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>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
This commit is contained in:
Erwan Le Ray
2020-02-03 15:04:22 +01:00
committed by Alexandre Torgue
parent bb6d3fb354
commit 79d5cfd19d
2 changed files with 8 additions and 8 deletions
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6
arch/arm/include/debug/stm32.S
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@@ -4,8 +4,6 @@
* Author: Gerald Baeza <gerald.baeza@st.com> for STMicroelectronics.
*/
#define STM32_UART_BASE 0x40011000 /* USART1 */
#ifdef CONFIG_STM32F4_DEBUG_UART
#define STM32_USART_SR_OFF 0x00
#define STM32_USART_TDR_OFF 0x04
@@ -20,8 +18,8 @@
#define STM32_USART_TXE (1 << 7) /* Tx data reg empty */
.macro addruart, rp, rv, tmp
ldr \rp, =STM32_UART_BASE @ physical base
ldr \rv, =STM32_UART_BASE @ virt base /* NoMMU */
ldr \rp, =CONFIG_DEBUG_UART_PHYS @ physical base
ldr \rv, =CONFIG_DEBUG_UART_VIRT @ virt base
.endm
.macro senduart,rd,rx