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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-12 20:51:39 +0100 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-12 20:51:39 +0100 |
commit | d01e4afdbb65e030fd6f1f96c30a558e2eb0f279 (patch) | |
tree | 02ef82b2740cf93a98199eded5ef765fa6e03052 /arch/arm/include/debug/imx.S | |
parent | Merge tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc (diff) | |
parent | Merge tag 'omap-for-v3.8/cleanup-headers-iommu-signed' of git://git.kernel.or... (diff) | |
download | linux-d01e4afdbb65e030fd6f1f96c30a558e2eb0f279.tar.xz linux-d01e4afdbb65e030fd6f1f96c30a558e2eb0f279.zip |
Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups on various subarchitectures from Olof Johansson:
"Cleanup patches for various ARM platforms and some of their associated
drivers. There's also a branch in here that enables Freescale i.MX to
be part of the multiplatform support -- the first "big" SoC that is
moved over (more multiplatform work comes in a separate branch later
during the merge window)."
Conflicts fixed as per Olof, including a silent semantic one in
arch/arm/mach-omap2/board-generic.c (omap_prcm_restart() was renamed to
omap3xxx_restart(), and a new user of the old name was added).
* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (189 commits)
ARM: omap: fix typo on timer cleanup
ARM: EXYNOS: Remove unused regs-mem.h file
ARM: EXYNOS: Remove unused non-dt support for dwmci controller
ARM: Kirkwood: Use hw_pci.ops instead of hw_pci.scan
ARM: OMAP3: cm-t3517: use GPTIMER for system clock
ARM: OMAP2+: timer: remove CONFIG_OMAP_32K_TIMER
ARM: SAMSUNG: use devm_ functions for ADC driver
ARM: EXYNOS: no duplicate mask/unmask in eint0_15
ARM: S3C24XX: SPI clock channel setup is fixed for S3C2443
ARM: EXYNOS: Remove i2c0 resource information and setting of device names
ARM: Kirkwood: checkpatch cleanups
ARM: Kirkwood: Fix sparse warnings.
ARM: Kirkwood: Remove unused includes
ARM: kirkwood: cleanup lsxl board includes
ARM: integrator: use BUG_ON where possible
ARM: integrator: push down SC dependencies
ARM: integrator: delete static UART1 mapping
ARM: integrator: delete SC mapping on the CP
ARM: integrator: remove static CP syscon mapping
ARM: integrator: remove static AP syscon mapping
...
Diffstat (limited to 'arch/arm/include/debug/imx.S')
-rw-r--r-- | arch/arm/include/debug/imx.S | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/arm/include/debug/imx.S b/arch/arm/include/debug/imx.S new file mode 100644 index 000000000000..0b65d792f664 --- /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 |