diff options
Diffstat (limited to 'arch/arm/include/debug')
| -rw-r--r-- | arch/arm/include/debug/brcmstb.S | 24 | ||||
| -rw-r--r-- | arch/arm/include/debug/stm32.S | 41 |
2 files changed, 54 insertions, 11 deletions
diff --git a/arch/arm/include/debug/brcmstb.S b/arch/arm/include/debug/brcmstb.S index 0f580caa81e5..bf8702ee8f86 100644 --- a/arch/arm/include/debug/brcmstb.S +++ b/arch/arm/include/debug/brcmstb.S @@ -26,8 +26,9 @@ #define UARTA_3390 REG_PHYS_ADDR(0x40a900) #define UARTA_7250 REG_PHYS_ADDR(0x40b400) -#define UARTA_7260 REG_PHYS_ADDR(0x40c000) -#define UARTA_7268 UARTA_7260 +#define UARTA_7255 REG_PHYS_ADDR(0x40c000) +#define UARTA_7260 UARTA_7255 +#define UARTA_7268 UARTA_7255 #define UARTA_7271 UARTA_7268 #define UARTA_7278 REG_PHYS_ADDR_V7(0x40c000) #define UARTA_7364 REG_PHYS_ADDR(0x40b000) @@ -82,15 +83,16 @@ ARM_BE8( rev \rv, \rv ) /* Chip specific detection starts here */ 20: checkuart(\rp, \rv, 0x33900000, 3390) 21: checkuart(\rp, \rv, 0x72500000, 7250) -22: checkuart(\rp, \rv, 0x72600000, 7260) -23: checkuart(\rp, \rv, 0x72680000, 7268) -24: checkuart(\rp, \rv, 0x72710000, 7271) -25: checkuart(\rp, \rv, 0x73640000, 7364) -26: checkuart(\rp, \rv, 0x73660000, 7366) -27: checkuart(\rp, \rv, 0x07437100, 74371) -28: checkuart(\rp, \rv, 0x74390000, 7439) -29: checkuart(\rp, \rv, 0x74450000, 7445) -30: checkuart(\rp, \rv, 0x72780000, 7278) +22: checkuart(\rp, \rv, 0x72550000, 7255) +23: checkuart(\rp, \rv, 0x72600000, 7260) +24: checkuart(\rp, \rv, 0x72680000, 7268) +25: checkuart(\rp, \rv, 0x72710000, 7271) +26: checkuart(\rp, \rv, 0x72780000, 7278) +27: checkuart(\rp, \rv, 0x73640000, 7364) +28: checkuart(\rp, \rv, 0x73660000, 7366) +29: checkuart(\rp, \rv, 0x07437100, 74371) +30: checkuart(\rp, \rv, 0x74390000, 7439) +31: checkuart(\rp, \rv, 0x74450000, 7445) /* No valid UART found */ 90: mov \rp, #0 diff --git a/arch/arm/include/debug/stm32.S b/arch/arm/include/debug/stm32.S new file mode 100644 index 000000000000..1abb32f685fd --- /dev/null +++ b/arch/arm/include/debug/stm32.S @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) STMicroelectronics SA 2017 - All Rights Reserved + * 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 +#endif + +#ifdef CONFIG_STM32F7_DEBUG_UART +#define STM32_USART_SR_OFF 0x1C +#define STM32_USART_TDR_OFF 0x28 +#endif + +#define STM32_USART_TC (1 << 6) /* Tx complete */ +#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 */ +.endm + +.macro senduart,rd,rx + strb \rd, [\rx, #STM32_USART_TDR_OFF] +.endm + +.macro waituart,rd,rx +1001: ldr \rd, [\rx, #(STM32_USART_SR_OFF)] @ Read Status Register + tst \rd, #STM32_USART_TXE @ TXE = 1 = tx empty + beq 1001b +.endm + +.macro busyuart,rd,rx +1001: ldr \rd, [\rx, #(STM32_USART_SR_OFF)] @ Read Status Register + tst \rd, #STM32_USART_TC @ TC = 1 = tx complete + beq 1001b +.endm |