| 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 |
| 7 | * Viresh Kumar<viresh.kumar@st.com> |
| 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> |
| 15 | #include <mach/spear.h> |
| 16 | |
| 17 | .macro addruart, rx |
| 18 | mrc p15, 0, \rx, c1, c0 |
| 19 | tst \rx, #1 @ MMU enabled? |
| Jeremy Kerr | e6b8b3e | 2010-07-22 16:34:34 +0100 | [diff] [blame] | 20 | moveq \rx, #SPEAR_DBG_UART_BASE @ Physical base |
| 21 | movne \rx, #VA_SPEAR_DBG_UART_BASE @ Virtual base |
| viresh kumar | bf976b5 | 2010-04-01 12:30:42 +0100 | [diff] [blame] | 22 | .endm |
| 23 | |
| 24 | .macro senduart, rd, rx |
| 25 | strb \rd, [\rx, #UART01x_DR] @ ASC_TX_BUFFER |
| 26 | .endm |
| 27 | |
| 28 | .macro waituart, rd, rx |
| 29 | 1001: ldr \rd, [\rx, #UART01x_FR] @ FLAG REGISTER |
| 30 | tst \rd, #UART01x_FR_TXFF @ TX_FULL |
| 31 | bne 1001b |
| 32 | .endm |
| 33 | |
| 34 | .macro busyuart, rd, rx |
| 35 | 1002: ldr \rd, [\rx, #UART01x_FR] @ FLAG REGISTER |
| 36 | tst \rd, #UART011_FR_TXFE @ TX_EMPTY |
| 37 | beq 1002b |
| 38 | .endm |