From 6dde5ac5220b3b9c28f82f291b64eca3e5ebe80d Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Sun, 16 Sep 2012 20:50:45 +0800 Subject: ARM: imx: move debug macros to include/debug Move imx debug-macro.S over to common debug macro directory. It removes the inclusion to hardware.h by hard-coding the physical address of uart port and copying IMX_IO_P2V from hardware.h. Since we will need a common solution, which might use a fixed virtual address for uart port across platforms, we make a copy of IMX_IO_P2V here as a temporary solution to enable low-level debug for imx multi-platform build. Signed-off-by: Shawn Guo Acked-by: Sascha Hauer Acked-by: Arnd Bergmann --- arch/arm/include/debug/imx.S | 62 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 arch/arm/include/debug/imx.S (limited to 'arch/arm/include') diff --git a/arch/arm/include/debug/imx.S b/arch/arm/include/debug/imx.S new file mode 100644 index 00000000000..0b65d792f66 --- /dev/null +++ b/arch/arm/include/debug/imx.S @@ -0,0 +1,62 @@ +/* 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 -- cgit v1.2.3 From 16cf8a80a8f0f4757427b17cdfb6c4897674db68 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Thu, 8 Nov 2012 08:46:23 +0100 Subject: ARM: dma-mapping: remove init_consistent_dma_size() stub Since commit e9da6e9905e639b0 ("ARM: dma-mapping: remove custom consistent dma region") setting consistent dma memory size is not longer required. All calls to this function has been already removed, so the init_consistent_dma_size() stub can also be gone. Signed-off-by: Marek Szyprowski --- arch/arm/include/asm/dma-mapping.h | 7 ------- 1 file changed, 7 deletions(-) (limited to 'arch/arm/include') diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 23004847bb0..8ea02ac3ec1 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -210,13 +210,6 @@ static inline void dma_free_writecombine(struct device *dev, size_t size, */ extern void __init init_dma_coherent_pool_size(unsigned long size); -/* - * This can be called during boot to increase the size of the consistent - * DMA region above it's default value of 2MB. It must be called before the - * memory allocator is initialised, i.e. before any core_initcall. - */ -static inline void init_consistent_dma_size(unsigned long size) { } - /* * For SA-1111, IXP425, and ADI systems the dma-mapping functions are "magic" * and utilize bounce buffers as needed to work around limited DMA windows. -- cgit v1.2.3