| /* arch/arm/mach-omap2/include/mach/debug-macro.S |
| * |
| * Debugging macro include header |
| * |
| * Copyright (C) 1994-1999 Russell King |
| * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| */ |
| |
| #include <linux/serial_reg.h> |
| |
| #include <plat/serial.h> |
| |
| .macro addruart, rx, tmp |
| mrc p15, 0, \rx, c1, c0 |
| tst \rx, #1 @ MMU enabled? |
| #ifdef CONFIG_ARCH_OMAP2 |
| moveq \rx, #0x48000000 @ physical base address |
| movne \rx, #0xfa000000 @ virtual base |
| orr \rx, \rx, #0x0006a000 |
| #ifdef CONFIG_OMAP_LL_DEBUG_UART2 |
| add \rx, \rx, #0x00002000 @ UART 2 |
| #endif |
| #ifdef CONFIG_OMAP_LL_DEBUG_UART3 |
| add \rx, \rx, #0x00004000 @ UART 3 |
| #endif |
| |
| #elif defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) |
| moveq \rx, #0x48000000 @ physical base address |
| movne \rx, #0xfa000000 @ virtual base |
| orr \rx, \rx, #0x0006a000 |
| #ifdef CONFIG_OMAP_LL_DEBUG_UART2 |
| add \rx, \rx, #0x00002000 @ UART 2 |
| #endif |
| #ifdef CONFIG_OMAP_LL_DEBUG_UART3 |
| add \rx, \rx, #0x00fb0000 @ UART 3 |
| add \rx, \rx, #0x00006000 |
| #endif |
| #endif |
| .endm |
| |
| .macro senduart,rd,rx |
| strb \rd, [\rx] |
| .endm |
| |
| .macro busyuart,rd,rx |
| 1001: ldrb \rd, [\rx, #(UART_LSR << OMAP_PORT_SHIFT)] |
| and \rd, \rd, #(UART_LSR_TEMT | UART_LSR_THRE) |
| teq \rd, #(UART_LSR_TEMT | UART_LSR_THRE) |
| bne 1001b |
| .endm |
| |
| .macro waituart,rd,rx |
| .endm |