| /* 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 <mach/hardware.h> |
| |
| #ifdef CONFIG_SOC_IMX1 |
| #define UART_PADDR MX1_UART1_BASE_ADDR |
| #endif |
| |
| #ifdef CONFIG_SOC_IMX25 |
| #ifdef UART_PADDR |
| #error "CONFIG_DEBUG_LL is incompatible with multiple archs" |
| #endif |
| #define UART_PADDR MX25_UART1_BASE_ADDR |
| #endif |
| |
| #if defined(CONFIG_SOC_IMX21) || defined (CONFIG_SOC_IMX27) |
| #ifdef UART_PADDR |
| #error "CONFIG_DEBUG_LL is incompatible with multiple archs" |
| #endif |
| #define UART_PADDR MX2x_UART1_BASE_ADDR |
| #endif |
| |
| #if defined(CONFIG_SOC_IMX31) || defined(CONFIG_SOC_IMX35) |
| #ifdef UART_PADDR |
| #error "CONFIG_DEBUG_LL is incompatible with multiple archs" |
| #endif |
| #define UART_PADDR MX3x_UART1_BASE_ADDR |
| #endif |
| |
| #ifdef CONFIG_SOC_IMX51 |
| #ifdef UART_PADDR |
| #error "CONFIG_DEBUG_LL is incompatible with multiple archs" |
| #endif |
| #define UART_PADDR MX51_UART1_BASE_ADDR |
| #endif |
| |
| /* iMX50/53 have same addresses, but not iMX51 */ |
| #if defined(CONFIG_SOC_IMX50) || defined(CONFIG_SOC_IMX53) |
| #ifdef UART_PADDR |
| #error "CONFIG_DEBUG_LL is incompatible with multiple archs" |
| #endif |
| #define UART_PADDR MX53_UART1_BASE_ADDR |
| #endif |
| |
| #define UART_VADDR IMX_IO_ADDRESS(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 |
