/* arch/arm/mach-imx/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 #ifdef CONFIG_ARCH_MX1 #define UART_PADDR MX1_UART1_BASE_ADDR #endif #ifdef CONFIG_ARCH_MX25 #ifdef UART_PADDR #error "CONFIG_DEBUG_LL is incompatible with multiple archs" #endif #define UART_PADDR MX25_UART1_BASE_ADDR #endif #ifdef CONFIG_ARCH_MX2 #ifdef UART_PADDR #error "CONFIG_DEBUG_LL is incompatible with multiple archs" #endif #define UART_PADDR MX2x_UART1_BASE_ADDR #endif #ifdef CONFIG_ARCH_MX3 #ifdef UART_PADDR #error "CONFIG_DEBUG_LL is incompatible with multiple archs" #endif #define UART_PADDR MX3x_UART1_BASE_ADDR #endif #ifdef CONFIG_ARCH_MX5 #ifdef UART_PADDR #error "CONFIG_DEBUG_LL is incompatible with multiple archs" #endif #define UART_PADDR MX51_UART1_BASE_ADDR #endif #define UART_VADDR IMX_IO_ADDRESS(UART_PADDR) .macro addruart, rp, rv ldr \rp, =UART_PADDR @ physical ldr \rv, =UART_VADDR @ virtual .endm .macro senduart,rd,rx str \rd, [\rx, #0x40] @ TXDATA .endm .macro waituart,rd,rx .endm .macro busyuart,rd,rx 1002: ldr \rd, [\rx, #0x98] @ SR2 tst \rd, #1 << 3 @ TXDC beq 1002b @ wait until transmit done .endm