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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/include/debug/sti.S
*
* Debugging macro include header
* Copyright (C) 2013 STMicroelectronics (R&D) Limited.
*/
#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