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- /*
- * arch/arm/include/debug/sti.S
- *
- * Debugging macro include header
- * Copyright (C) 2013 STMicroelectronics (R&D) Limited.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
- #define STIH41X_COMMS_BASE 0xfed00000
- #define STIH41X_ASC2_BASE (STIH41X_COMMS_BASE+0x32000)
- #define STIH41X_SBC_LPM_BASE 0xfe400000
- #define STIH41X_SBC_COMMS_BASE (STIH41X_SBC_LPM_BASE + 0x100000)
- #define STIH41X_SBC_ASC1_BASE (STIH41X_SBC_COMMS_BASE + 0x31000)
- #define VIRT_ADDRESS(x) (x - 0x1000000)
- #if IS_ENABLED(CONFIG_STIH41X_DEBUG_ASC2)
- #define DEBUG_LL_UART_BASE STIH41X_ASC2_BASE
- #endif
- #if IS_ENABLED(CONFIG_STIH41X_DEBUG_SBC_ASC1)
- #define DEBUG_LL_UART_BASE STIH41X_SBC_ASC1_BASE
- #endif
- #ifndef DEBUG_LL_UART_BASE
- #error "DEBUG UART is not Configured"
- #endif
- #define ASC_TX_BUF_OFF 0x04
- #define ASC_CTRL_OFF 0x0c
- #define ASC_STA_OFF 0x14
- #define ASC_STA_TX_FULL (1<<9)
- #define ASC_STA_TX_EMPTY (1<<1)
- .macro addruart, rp, rv, tmp
- ldr \rp, =DEBUG_LL_UART_BASE @ physical base
- ldr \rv, =VIRT_ADDRESS(DEBUG_LL_UART_BASE) @ virt base
- .endm
- .macro senduart,rd,rx
- strb \rd, [\rx, #ASC_TX_BUF_OFF]
- .endm
- .macro waituart,rd,rx
- 1001: ldr \rd, [\rx, #ASC_STA_OFF]
- tst \rd, #ASC_STA_TX_FULL
- bne 1001b
- .endm
- .macro busyuart,rd,rx
- 1001: ldr \rd, [\rx, #ASC_STA_OFF]
- tst \rd, #ASC_STA_TX_EMPTY
- beq 1001b
- .endm
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