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| author | Shawn Guo <shawn.guo@freescale.com> | 2010-12-20 15:57:42 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2010-12-20 17:29:23 +0100 |
| commit | 41fa75bc09d31c47d6606233b60f595524c28cd4 (patch) | |
| tree | aad3cefe310728937792a5ce6dfca8cb41fef2e6 /arch/arm/mach-mxs/include/mach/debug-macro.S | |
| parent | ARM: mxs: Add interrupt support (diff) | |
| download | linux-41fa75bc09d31c47d6606233b60f595524c28cd4.tar.xz linux-41fa75bc09d31c47d6606233b60f595524c28cd4.zip | |
ARM: mxs: Add low-level debug UART support
- DEBUG_LL support, which is incompatible with multi-soc MXS image
because of different DUART base address on MX23 and MX28
- uncompress message support
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mxs/include/mach/debug-macro.S')
| -rw-r--r-- | arch/arm/mach-mxs/include/mach/debug-macro.S | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/mach-mxs/include/mach/debug-macro.S b/arch/arm/mach-mxs/include/mach/debug-macro.S new file mode 100644 index 000000000000..79650a1ad78d --- /dev/null +++ b/arch/arm/mach-mxs/include/mach/debug-macro.S @@ -0,0 +1,38 @@ +/* arch/arm/mach-mxs/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/mx23.h> +#include <mach/mx28.h> + +#ifdef CONFIG_SOC_IMX23 +#ifdef UART_PADDR +#error "CONFIG_DEBUG_LL is incompatible with multiple archs" +#endif +#define UART_PADDR MX23_DUART_BASE_ADDR +#endif + +#ifdef CONFIG_SOC_IMX28 +#ifdef UART_PADDR +#error "CONFIG_DEBUG_LL is incompatible with multiple archs" +#endif +#define UART_PADDR MX28_DUART_BASE_ADDR +#endif + +#define UART_VADDR MXS_IO_ADDRESS(UART_PADDR) + + .macro addruart, rp, rv + ldr \rp, =UART_PADDR @ physical + ldr \rv, =UART_VADDR @ virtual + .endm + +#include <asm/hardware/debug-pl01x.S> |