| Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 1 | /* arch/arm/mach-realview/include/mach/debug-macro.S |
| 2 | * |
| 3 | * Debugging macro include header |
| 4 | * |
| 5 | * Copyright (C) 1994-1999 Russell King |
| 6 | * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| Pawel Moll | 6a37195 | 2011-12-09 18:47:39 +0000 | [diff] [blame] | 13 | #define DEBUG_LL_PHYS_BASE 0x10000000 |
| 14 | #define DEBUG_LL_UART_OFFSET 0x00009000 |
| 15 | |
| 16 | #define DEBUG_LL_PHYS_BASE_RS1 0x1c000000 |
| 17 | #define DEBUG_LL_UART_OFFSET_RS1 0x00090000 |
| 18 | |
| 19 | #define DEBUG_LL_VIRT_BASE 0xf8000000 |
| Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 20 | |
| Pawel Moll | 1b820ea | 2012-07-11 17:07:25 +0100 | [diff] [blame] | 21 | #if defined(CONFIG_DEBUG_VEXPRESS_UART0_DETECT) |
| 22 | |
| Nicolas Pitre | 639da5e | 2011-08-31 22:55:46 -0400 | [diff] [blame] | 23 | .macro addruart,rp,rv,tmp |
| Arnd Bergmann | d892a91 | 2012-11-08 14:05:23 +0000 | [diff] [blame] | 24 | .arch armv7-a |
| Pawel Moll | 6a37195 | 2011-12-09 18:47:39 +0000 | [diff] [blame] | 25 | |
| 26 | @ Make an educated guess regarding the memory map: |
| Pawel Moll | 852663d | 2012-09-04 17:06:20 +0100 | [diff] [blame] | 27 | @ - the original A9 core tile (based on ARM Cortex-A9 r0p1) |
| 28 | @ should use UART at 0x10009000 |
| Pawel Moll | 6a37195 | 2011-12-09 18:47:39 +0000 | [diff] [blame] | 29 | @ - all other (RS1 complaint) tiles use UART mapped |
| 30 | @ at 0x1c090000 |
| Pawel Moll | 852663d | 2012-09-04 17:06:20 +0100 | [diff] [blame] | 31 | mrc p15, 0, \rp, c0, c0, 0 |
| 32 | movw \rv, #0xc091 |
| 33 | movt \rv, #0x410f |
| 34 | cmp \rp, \rv |
| Pawel Moll | 6a37195 | 2011-12-09 18:47:39 +0000 | [diff] [blame] | 35 | |
| 36 | @ Original memory map |
| 37 | moveq \rp, #DEBUG_LL_UART_OFFSET |
| 38 | orreq \rv, \rp, #DEBUG_LL_VIRT_BASE |
| 39 | orreq \rp, \rp, #DEBUG_LL_PHYS_BASE |
| 40 | |
| 41 | @ RS1 memory map |
| 42 | movne \rp, #DEBUG_LL_UART_OFFSET_RS1 |
| 43 | orrne \rv, \rp, #DEBUG_LL_VIRT_BASE |
| 44 | orrne \rp, \rp, #DEBUG_LL_PHYS_BASE_RS1 |
| 45 | |
| Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 46 | .endm |
| 47 | |
| 48 | #include <asm/hardware/debug-pl01x.S> |
| Pawel Moll | 1b820ea | 2012-07-11 17:07:25 +0100 | [diff] [blame] | 49 | |
| 50 | #elif defined(CONFIG_DEBUG_VEXPRESS_UART0_CA9) |
| 51 | |
| 52 | .macro addruart,rp,rv,tmp |
| 53 | mov \rp, #DEBUG_LL_UART_OFFSET |
| 54 | orr \rv, \rp, #DEBUG_LL_VIRT_BASE |
| 55 | orr \rp, \rp, #DEBUG_LL_PHYS_BASE |
| 56 | .endm |
| 57 | |
| 58 | #include <asm/hardware/debug-pl01x.S> |
| 59 | |
| 60 | #elif defined(CONFIG_DEBUG_VEXPRESS_UART0_RS1) |
| 61 | |
| 62 | .macro addruart,rp,rv,tmp |
| 63 | mov \rp, #DEBUG_LL_UART_OFFSET_RS1 |
| 64 | orr \rv, \rp, #DEBUG_LL_VIRT_BASE |
| 65 | orr \rp, \rp, #DEBUG_LL_PHYS_BASE_RS1 |
| 66 | .endm |
| 67 | |
| 68 | #include <asm/hardware/debug-pl01x.S> |
| 69 | |
| 70 | #else /* CONFIG_DEBUG_LL_UART_NONE */ |
| 71 | |
| 72 | .macro addruart, rp, rv, tmp |
| 73 | /* Safe dummy values */ |
| 74 | mov \rp, #0 |
| 75 | mov \rv, #DEBUG_LL_VIRT_BASE |
| 76 | .endm |
| 77 | |
| 78 | .macro senduart,rd,rx |
| 79 | .endm |
| 80 | |
| 81 | .macro waituart,rd,rx |
| 82 | .endm |
| 83 | |
| 84 | .macro busyuart,rd,rx |
| 85 | .endm |
| 86 | |
| 87 | #endif |