| | 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 | |
| | 14 | #ifdef CONFIG_ARCH_MX1 |
| | 15 | #include <mach/mx1.h> |
| | 16 | #define UART_PADDR UART1_BASE_ADDR |
| | 17 | #define UART_VADDR IO_ADDRESS(UART1_BASE_ADDR) |
| | 18 | #endif |
| | 19 | |
| | 20 | #ifdef CONFIG_ARCH_MX25 |
| | 21 | #ifdef UART_PADDR |
| | 22 | #error "CONFIG_DEBUG_LL is incompatible with multiple archs" |
| | 23 | #endif |
| | 24 | #include <mach/mx25.h> |
| | 25 | #define UART_PADDR UART1_BASE_ADDR |
| | 26 | #define UART_VADDR MX25_AIPS1_IO_ADDRESS(UART1_BASE_ADDR) |
| | 27 | #endif |
| | 28 | |
| | 29 | #ifdef CONFIG_ARCH_MX2 |
| | 30 | #ifdef UART_PADDR |
| | 31 | #error "CONFIG_DEBUG_LL is incompatible with multiple archs" |
| | 32 | #endif |
| | 33 | #include <mach/mx2x.h> |
| | 34 | #define UART_PADDR UART1_BASE_ADDR |
| | 35 | #define UART_VADDR AIPI_IO_ADDRESS(UART1_BASE_ADDR) |
| | 36 | #endif |
| | 37 | |
| | 38 | #ifdef CONFIG_ARCH_MX3 |
| | 39 | #ifdef UART_PADDR |
| | 40 | #error "CONFIG_DEBUG_LL is incompatible with multiple archs" |
| | 41 | #endif |
| | 42 | #include <mach/mx3x.h> |
| | 43 | #define UART_PADDR UART1_BASE_ADDR |
| | 44 | #define UART_VADDR AIPS1_IO_ADDRESS(UART1_BASE_ADDR) |
| | 45 | #endif |
| | 46 | |
| | 47 | #ifdef CONFIG_ARCH_MXC91231 |
| | 48 | #ifdef UART_PADDR |
| | 49 | #error "CONFIG_DEBUG_LL is incompatible with multiple archs" |
| | 50 | #endif |
| | 51 | #include <mach/mxc91231.h> |
| | 52 | #define UART_PADDR MXC91231_UART2_BASE_ADDR |
| | 53 | #define UART_VADDR MXC91231_AIPS1_IO_ADDRESS(MXC91231_UART2_BASE_ADDR) |
| | 54 | #endif |
| | 55 | .macro addruart, rx, tmp |
| | 56 | mrc p15, 0, \rx, c1, c0 |
| | 57 | tst \rx, #1 @ MMU enabled? |
| | 58 | ldreq \rx, =UART_PADDR @ physical |
| | 59 | ldrne \rx, =UART_VADDR @ virtual |
| | 60 | .endm |
| | 61 | |
| | 62 | .macro senduart,rd,rx |
| | 63 | str \rd, [\rx, #0x40] @ TXDATA |
| | 64 | .endm |
| | 65 | |
| | 66 | .macro waituart,rd,rx |
| | 67 | .endm |
| | 68 | |
| | 69 | .macro busyuart,rd,rx |
| | 70 | 1002: ldr \rd, [\rx, #0x98] @ SR2 |
| | 71 | tst \rd, #1 << 3 @ TXDC |
| | 72 | beq 1002b @ wait until transmit done |
| | 73 | .endm |
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