62 lines
1.7 KiB
ArmAsm
62 lines
1.7 KiB
ArmAsm
/*
|
|
* 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
|