| viresh kumar | bf976b5 | 2010-04-01 12:30:42 +0100 | [diff] [blame] | 1 | /* |
| 2 | * arch/arm/plat-spear/include/plat/debug-macro.S |
| 3 | * |
| 4 | * Debugging macro include header for spear platform |
| 5 | * |
| 6 | * Copyright (C) 2009 ST Microelectronics |
| Viresh Kumar | 10d8935 | 2012-06-20 12:53:02 -0700 | [diff] [blame^] | 7 | * Viresh Kumar <viresh.linux@gmail.com> |
| viresh kumar | bf976b5 | 2010-04-01 12:30:42 +0100 | [diff] [blame] | 8 | * |
| 9 | * This file is licensed under the terms of the GNU General Public |
| 10 | * License version 2. This program is licensed "as is" without any |
| 11 | * warranty of any kind, whether express or implied. |
| 12 | */ |
| 13 | |
| 14 | #include <linux/amba/serial.h> |
| Arnd Bergmann | 5019f0b | 2012-04-11 17:30:11 +0000 | [diff] [blame] | 15 | #include <mach/spear.h> |
| viresh kumar | bf976b5 | 2010-04-01 12:30:42 +0100 | [diff] [blame] | 16 | |
| Nicolas Pitre | 639da5e | 2011-08-31 22:55:46 -0400 | [diff] [blame] | 17 | .macro addruart, rp, rv, tmp |
| Jeremy Kerr | 0ea1293 | 2010-07-06 18:30:06 +0800 | [diff] [blame] | 18 | mov \rp, #SPEAR_DBG_UART_BASE @ Physical base |
| 19 | mov \rv, #VA_SPEAR_DBG_UART_BASE @ Virtual base |
| viresh kumar | bf976b5 | 2010-04-01 12:30:42 +0100 | [diff] [blame] | 20 | .endm |
| 21 | |
| 22 | .macro senduart, rd, rx |
| 23 | strb \rd, [\rx, #UART01x_DR] @ ASC_TX_BUFFER |
| 24 | .endm |
| 25 | |
| 26 | .macro waituart, rd, rx |
| 27 | 1001: ldr \rd, [\rx, #UART01x_FR] @ FLAG REGISTER |
| 28 | tst \rd, #UART01x_FR_TXFF @ TX_FULL |
| 29 | bne 1001b |
| 30 | .endm |
| 31 | |
| 32 | .macro busyuart, rd, rx |
| 33 | 1002: ldr \rd, [\rx, #UART01x_FR] @ FLAG REGISTER |
| 34 | tst \rd, #UART011_FR_TXFE @ TX_EMPTY |
| 35 | beq 1002b |
| 36 | .endm |