| /* 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. |
| * |
| */ |
| #define IMX6Q_UART1_BASE_ADDR 0x02020000 |
| #define IMX6Q_UART2_BASE_ADDR 0x021e8000 |
| #define IMX6Q_UART3_BASE_ADDR 0x021ec000 |
| #define IMX6Q_UART4_BASE_ADDR 0x021f0000 |
| #define IMX6Q_UART5_BASE_ADDR 0x021f4000 |
| |
| /* |
| * IMX6Q_UART_BASE_ADDR is put in the middle to force the expansion |
| * of IMX6Q_UART##n##_BASE_ADDR. |
| */ |
| #define IMX6Q_UART_BASE_ADDR(n) IMX6Q_UART##n##_BASE_ADDR |
| #define IMX6Q_UART_BASE(n) IMX6Q_UART_BASE_ADDR(n) |
| #define IMX6Q_DEBUG_UART_BASE IMX6Q_UART_BASE(CONFIG_DEBUG_IMX6Q_UART_PORT) |
| |
| #ifdef CONFIG_DEBUG_IMX1_UART |
| #define UART_PADDR 0x00206000 |
| #elif defined (CONFIG_DEBUG_IMX25_UART) |
| #define UART_PADDR 0x43f90000 |
| #elif defined (CONFIG_DEBUG_IMX21_IMX27_UART) |
| #define UART_PADDR 0x1000a000 |
| #elif defined (CONFIG_DEBUG_IMX31_IMX35_UART) |
| #define UART_PADDR 0x43f90000 |
| #elif defined (CONFIG_DEBUG_IMX51_UART) |
| #define UART_PADDR 0x73fbc000 |
| #elif defined (CONFIG_DEBUG_IMX50_IMX53_UART) |
| #define UART_PADDR 0x53fbc000 |
| #elif defined (CONFIG_DEBUG_IMX6Q_UART) |
| #define UART_PADDR IMX6Q_DEBUG_UART_BASE |
| #endif |
| |
| /* |
| * FIXME: This is a copy of IMX_IO_P2V in hardware.h, and needs to |
| * stay sync with that. It's hard to maintain, and should be fixed |
| * globally for multi-platform build to use a fixed virtual address |
| * for low-level debug uart port across platforms. |
| */ |
| #define IMX_IO_P2V(x) ( \ |
| (((x) & 0x80000000) >> 7) | \ |
| (0xf4000000 + \ |
| (((x) & 0x50000000) >> 6) + \ |
| (((x) & 0x0b000000) >> 4) + \ |
| (((x) & 0x000fffff)))) |
| |
| #define UART_VADDR IMX_IO_P2V(UART_PADDR) |
| |
| .macro addruart, rp, rv, tmp |
| 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 |
