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- /* 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.
- *
- */
- #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_UART2)
- #define UART_PADDR 0x021e8000
- #elif defined (CONFIG_DEBUG_IMX6Q_UART4)
- #define UART_PADDR 0x021f0000
- #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
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