1/* arch/arm/mach-imx/include/mach/debug-macro.S 2 * 3 * Debugging macro include header 4 * 5 * Copyright (C) 1994-1999 Russell King 6 * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 * 12 */ 13#define IMX6Q_UART1_BASE_ADDR 0x02020000 14#define IMX6Q_UART2_BASE_ADDR 0x021e8000 15#define IMX6Q_UART3_BASE_ADDR 0x021ec000 16#define IMX6Q_UART4_BASE_ADDR 0x021f0000 17#define IMX6Q_UART5_BASE_ADDR 0x021f4000 18 19/* 20 * IMX6Q_UART_BASE_ADDR is put in the middle to force the expansion 21 * of IMX6Q_UART##n##_BASE_ADDR. 22 */ 23#define IMX6Q_UART_BASE_ADDR(n) IMX6Q_UART##n##_BASE_ADDR 24#define IMX6Q_UART_BASE(n) IMX6Q_UART_BASE_ADDR(n) 25#define IMX6Q_DEBUG_UART_BASE IMX6Q_UART_BASE(CONFIG_DEBUG_IMX6Q_UART_PORT) 26 27#ifdef CONFIG_DEBUG_IMX1_UART 28#define UART_PADDR 0x00206000 29#elif defined (CONFIG_DEBUG_IMX25_UART) 30#define UART_PADDR 0x43f90000 31#elif defined (CONFIG_DEBUG_IMX21_IMX27_UART) 32#define UART_PADDR 0x1000a000 33#elif defined (CONFIG_DEBUG_IMX31_IMX35_UART) 34#define UART_PADDR 0x43f90000 35#elif defined (CONFIG_DEBUG_IMX51_UART) 36#define UART_PADDR 0x73fbc000 37#elif defined (CONFIG_DEBUG_IMX50_IMX53_UART) 38#define UART_PADDR 0x53fbc000 39#elif defined (CONFIG_DEBUG_IMX6Q_UART) 40#define UART_PADDR IMX6Q_DEBUG_UART_BASE 41#endif 42 43/* 44 * FIXME: This is a copy of IMX_IO_P2V in hardware.h, and needs to 45 * stay sync with that. It's hard to maintain, and should be fixed 46 * globally for multi-platform build to use a fixed virtual address 47 * for low-level debug uart port across platforms. 48 */ 49#define IMX_IO_P2V(x) ( \ 50 (((x) & 0x80000000) >> 7) | \ 51 (0xf4000000 + \ 52 (((x) & 0x50000000) >> 6) + \ 53 (((x) & 0x0b000000) >> 4) + \ 54 (((x) & 0x000fffff)))) 55 56#define UART_VADDR IMX_IO_P2V(UART_PADDR) 57 58 .macro addruart, rp, rv, tmp 59 ldr \rp, =UART_PADDR @ physical 60 ldr \rv, =UART_VADDR @ virtual 61 .endm 62 63 .macro senduart,rd,rx 64 str \rd, [\rx, #0x40] @ TXDATA 65 .endm 66 67 .macro waituart,rd,rx 68 .endm 69 70 .macro busyuart,rd,rx 711002: ldr \rd, [\rx, #0x98] @ SR2 72 tst \rd, #1 << 3 @ TXDC 73 beq 1002b @ wait until transmit done 74 .endm 75