diff options
Diffstat (limited to 'arch/arm/include/debug/zynq.S')
| -rw-r--r-- | arch/arm/include/debug/zynq.S | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/arch/arm/include/debug/zynq.S b/arch/arm/include/debug/zynq.S index f9aa9740a73f..5d42cc35ecf3 100644 --- a/arch/arm/include/debug/zynq.S +++ b/arch/arm/include/debug/zynq.S @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Debugging macro include header * * Copyright (C) 2011 Xilinx - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #define UART_CR_OFFSET 0x00 /* Control Register [8:0] */ #define UART_SR_OFFSET 0x2C /* Channel Status [11:0] */ @@ -20,32 +12,40 @@ #define UART_SR_TXEMPTY 0x00000008 /* TX FIFO empty */ #define UART0_PHYS 0xE0000000 +#define UART0_VIRT 0xF0800000 #define UART1_PHYS 0xE0001000 -#define UART_SIZE SZ_4K -#define UART_VIRT 0xF0001000 +#define UART1_VIRT 0xF0801000 #if IS_ENABLED(CONFIG_DEBUG_ZYNQ_UART1) # define LL_UART_PADDR UART1_PHYS +# define LL_UART_VADDR UART1_VIRT #else # define LL_UART_PADDR UART0_PHYS +# define LL_UART_VADDR UART0_VIRT #endif -#define LL_UART_VADDR UART_VIRT - .macro addruart, rp, rv, tmp ldr \rp, =LL_UART_PADDR @ physical ldr \rv, =LL_UART_VADDR @ virtual .endm .macro senduart,rd,rx - str \rd, [\rx, #UART_FIFO_OFFSET] @ TXDATA + strb \rd, [\rx, #UART_FIFO_OFFSET] @ TXDATA + .endm + + .macro waituartcts,rd,rx .endm - .macro waituart,rd,rx + .macro waituarttxrdy,rd,rx +1001: ldr \rd, [\rx, #UART_SR_OFFSET] +ARM_BE8( rev \rd, \rd ) + tst \rd, #UART_SR_TXEMPTY + beq 1001b .endm .macro busyuart,rd,rx 1002: ldr \rd, [\rx, #UART_SR_OFFSET] @ get status register +ARM_BE8( rev \rd, \rd ) tst \rd, #UART_SR_TXFULL @ bne 1002b @ wait if FIFO is full .endm |