Merge tag 'locking-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel...
[linux/fpc-iii.git] / arch / arm / include / debug / vexpress.S
blobccb22e9a86a35a4123fca489bbc2db1c1de7b8df
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /* arch/arm/mach-realview/include/mach/debug-macro.S
3  *
4  * Debugging macro include header
5  *
6  *  Copyright (C) 1994-1999 Russell King
7  *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
8  */
10 #define DEBUG_LL_PHYS_BASE              0x10000000
11 #define DEBUG_LL_UART_OFFSET            0x00009000
13 #define DEBUG_LL_PHYS_BASE_RS1          0x1c000000
14 #define DEBUG_LL_UART_OFFSET_RS1        0x00090000
16 #define DEBUG_LL_UART_PHYS_CRX          0xb0090000
18 #define DEBUG_LL_VIRT_BASE              0xf8000000
20 #if defined(CONFIG_DEBUG_VEXPRESS_UART0_DETECT)
22                 .macro  addruart,rp,rv,tmp
23                 .arch   armv7-a
25                 @ Make an educated guess regarding the memory map:
26                 @ - the original A9 core tile (based on ARM Cortex-A9 r0p1)
27                 @   should use UART at 0x10009000
28                 @ - all other (RS1 complaint) tiles use UART mapped
29                 @   at 0x1c090000
30                 mrc     p15, 0, \rp, c0, c0, 0
31                 movw    \rv, #0xc091
32                 movt    \rv, #0x410f
33                 cmp     \rp, \rv
35                 @ Original memory map
36                 moveq   \rp, #DEBUG_LL_UART_OFFSET
37                 orreq   \rv, \rp, #DEBUG_LL_VIRT_BASE
38                 orreq   \rp, \rp, #DEBUG_LL_PHYS_BASE
40                 @ RS1 memory map
41                 movne   \rp, #DEBUG_LL_UART_OFFSET_RS1
42                 orrne   \rv, \rp, #DEBUG_LL_VIRT_BASE
43                 orrne   \rp, \rp, #DEBUG_LL_PHYS_BASE_RS1
45                 .endm
47 #include <debug/pl01x.S>
48 #endif