include/debug/vexpress.S

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /* arch/arm/mach-realview/include/mach/debug-macro.S
0003  *
0004  * Debugging macro include header
0005  *
0006  *  Copyright (C) 1994-1999 Russell King
0007  *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
0008  */
0009
0010 #define DEBUG_LL_PHYS_BASE      0x10000000
0011 #define DEBUG_LL_UART_OFFSET        0x00009000
0012
0013 #define DEBUG_LL_PHYS_BASE_RS1      0x1c000000
0014 #define DEBUG_LL_UART_OFFSET_RS1    0x00090000
0015
0016 #define DEBUG_LL_UART_PHYS_CRX      0xb0090000
0017
0018 #define DEBUG_LL_VIRT_BASE      0xf8000000
0019
0020 #if defined(CONFIG_DEBUG_VEXPRESS_UART0_DETECT)
0021
0022         .macro  addruart,rp,rv,tmp
0023         .arch   armv7-a
0024
0025         @ Make an educated guess regarding the memory map:
0026         @ - the original A9 core tile (based on ARM Cortex-A9 r0p1)
0027         @   should use UART at 0x10009000
0028         @ - all other (RS1 complaint) tiles use UART mapped
0029         @   at 0x1c090000
0030         mrc p15, 0, \rp, c0, c0, 0
0031         movw    \rv, #0xc091
0032         movt    \rv, #0x410f
0033         cmp \rp, \rv
0034
0035         @ Original memory map
0036         moveq   \rp, #DEBUG_LL_UART_OFFSET
0037         orreq   \rv, \rp, #DEBUG_LL_VIRT_BASE
0038         orreq   \rp, \rp, #DEBUG_LL_PHYS_BASE
0039
0040         @ RS1 memory map
0041         movne   \rp, #DEBUG_LL_UART_OFFSET_RS1
0042         orrne   \rv, \rp, #DEBUG_LL_VIRT_BASE
0043         orrne   \rp, \rp, #DEBUG_LL_PHYS_BASE_RS1
0044
0045         .endm
0046
0047 #include <debug/pl01x.S>
0048 #endif