| /* |
| * arch/arm/mach-comcerto/include/mach/debug-macro.S |
| * |
| * Copyright (C) 2012 Mindspeed Technologies, Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #define UART_LSR 0x14 |
| |
| |
| .macro addruart, rx, rv, tmp |
| ldr \rx, =0x96000000 @ physical base address |
| ldr \rv, =0xf1600000 @ virtual base |
| #ifdef CONFIG_COMCERTO_UART1_SUPPORT |
| add \rx, \rx, #0x00400000 |
| add \rv, \rv, #0x00400000 |
| #elif CONFIG_COMCERTO_UART0_SUPPORT |
| add \rx, \rx, #0x00300000 |
| add \rv, \rv, #0x00300000 |
| #else |
| #error no uart defined |
| #endif |
| .endm |
| |
| .macro senduart,rd,rx |
| strb \rd, [\rx, #0x00] |
| .endm |
| |
| .macro waituart,rd,rx |
| 1001: ldrb \rd, [\rx, #UART_LSR] |
| tst \rd, #0x20 @ wait for THRE |
| beq 1001b |
| .endm |
| |
| .macro busyuart,rd,rx |
| 1001: ldrb \rd, [\rx, #UART_LSR] |
| and \rd, \rd, #0x60 |
| teq \rd, #0x60 @ wait for TEMT and THRE |
| bne 1001b |
| .endm |
