| /* |
| * arch/arm/plat-spear/include/plat/debug-macro.S |
| * |
| * Debugging macro include header for spear platform |
| * |
| * Copyright (C) 2009 ST Microelectronics |
| * Viresh Kumar<viresh.kumar@st.com> |
| * |
| * This file is licensed under the terms of the GNU General Public |
| * License version 2. This program is licensed "as is" without any |
| * warranty of any kind, whether express or implied. |
| */ |
| |
| #include <linux/amba/serial.h> |
| #include <mach/spear.h> |
| |
| .macro addruart, rx |
| mrc p15, 0, \rx, c1, c0 |
| tst \rx, #1 @ MMU enabled? |
| moveq \rx, #SPEAR_DBG_UART_BASE @ Physical base |
| movne \rx, #VA_SPEAR_DBG_UART_BASE @ Virtual base |
| .endm |
| |
| .macro senduart, rd, rx |
| strb \rd, [\rx, #UART01x_DR] @ ASC_TX_BUFFER |
| .endm |
| |
| .macro waituart, rd, rx |
| 1001: ldr \rd, [\rx, #UART01x_FR] @ FLAG REGISTER |
| tst \rd, #UART01x_FR_TXFF @ TX_FULL |
| bne 1001b |
| .endm |
| |
| .macro busyuart, rd, rx |
| 1002: ldr \rd, [\rx, #UART01x_FR] @ FLAG REGISTER |
| tst \rd, #UART011_FR_TXFE @ TX_EMPTY |
| beq 1002b |
| .endm |