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linux/arch/arm/include/debug/imx.S

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[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-05 23:14:15 +08:00
/* arch/arm/mach-imx/include/mach/debug-macro.S
MXC: add debug-macro.S for mxc This patch adds debug-macro.S for arch-mxc Disadvantage: Due to the board specific UART definition, these macros (and compile time) will fail for multi board kernels. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05 16:02:51 +08:00
*
* 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.
*
*/
arm/imx: use Kconfig choice for low-level debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, simplify the #ifdefery in debug-macro.S and add entries to the top-level Kconfig.debug instead. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-19 12:56:59 +08:00
#ifdef CONFIG_DEBUG_IMX1_UART
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 <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-09-16 20:50:45 +08:00
#define UART_PADDR 0x00206000
arm/imx: use Kconfig choice for low-level debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, simplify the #ifdefery in debug-macro.S and add entries to the top-level Kconfig.debug instead. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-19 12:56:59 +08:00
#elif defined (CONFIG_DEBUG_IMX25_UART)
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 <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-09-16 20:50:45 +08:00
#define UART_PADDR 0x43f90000
arm/imx: use Kconfig choice for low-level debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, simplify the #ifdefery in debug-macro.S and add entries to the top-level Kconfig.debug instead. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-19 12:56:59 +08:00
#elif defined (CONFIG_DEBUG_IMX21_IMX27_UART)
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 <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-09-16 20:50:45 +08:00
#define UART_PADDR 0x1000a000
arm/imx: use Kconfig choice for low-level debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, simplify the #ifdefery in debug-macro.S and add entries to the top-level Kconfig.debug instead. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-19 12:56:59 +08:00
#elif defined (CONFIG_DEBUG_IMX31_IMX35_UART)
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 <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-09-16 20:50:45 +08:00
#define UART_PADDR 0x43f90000
arm/imx: use Kconfig choice for low-level debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, simplify the #ifdefery in debug-macro.S and add entries to the top-level Kconfig.debug instead. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-19 12:56:59 +08:00
#elif defined (CONFIG_DEBUG_IMX51_UART)
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 <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-09-16 20:50:45 +08:00
#define UART_PADDR 0x73fbc000
arm/imx: use Kconfig choice for low-level debug UART selection Now that the DEBUG_LL UART can be selected by a Kconfig choice, simplify the #ifdefery in debug-macro.S and add entries to the top-level Kconfig.debug instead. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Cc: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-08-19 12:56:59 +08:00
#elif defined (CONFIG_DEBUG_IMX50_IMX53_UART)
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 <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-09-16 20:50:45 +08:00
#define UART_PADDR 0x53fbc000
ARM: imx6: Add UART2 for low-level debug To be able to enable early debugging on boards using the UART2 for the console, add the option for early debugging on UART2. Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-04-27 16:15:45 +08:00
#elif defined (CONFIG_DEBUG_IMX6Q_UART2)
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 <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-09-16 20:50:45 +08:00
#define UART_PADDR 0x021e8000
ARM: imx6: Rename DEBUG_IMX6Q_UART to UART4 Different boards may use differenct UART ports for debugging. To be able to add different debug UART configurations (e.g. UART2), rename the existing general DEBUG_IMX6Q_UART to DEBUG_IMX6Q_UART4. Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2012-02-06 20:19:19 +08:00
#elif defined (CONFIG_DEBUG_IMX6Q_UART4)
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 <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-09-16 20:50:45 +08:00
#define UART_PADDR 0x021f0000
iMX: Fix build for iMX53 Commit fad107086d5a869c1c07e5bb35b7b57a10ecf578 fixed the wrong test for MX51 as the MX51 addresses are wrong for MX50 and MX53 but now it's MX51 only, UART_PADDR is not defined anymore when building for MX50/MX53. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Tested-by: Steev Klimaszewski <steev@genesi-usa.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-08-05 15:32:41 +08:00
#endif
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 <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-09-16 20:50:45 +08:00
/*
* 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)
ARM: imx/debug-macro: rework using the new io mapping macro This gets rid of the last user of IMX_NEEDS_DEPRECATED_SYMBOLS. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-10-26 15:42:54 +08:00
ARM: add an extra temp register to the low level debugging addruart macro Some platforms (like OMAP not to name it) are doing rather complicated hacks just to determine the base UART address to use. Let's give their addruart macro some slack by providing an extra work register which will allow for much needed cleanups. This is basically a no-op as this commit is only adding the extra argument to the macro but no one is using it yet. Signed-off-by: nicolas Pitre <nicolas.pitre@linaro.org> Reviewed-by: Kevin Hilman <khilman@ti.com>
2011-09-01 10:55:46 +08:00
.macro addruart, rp, rv, tmp
arm: return both physical and virtual addresses from addruart Rather than checking the MMU status in every instance of addruart, do it once in kernel/debug.S, and change the existing addruart macros to return both physical and virtual addresses. The main debug code can then select the appropriate address to use. This will also allow us to retreive the address of a uart for the MMU state that we're not current in. Updated with fixes for OMAP from Jason Wang <jason77.wang@gmail.com> and Tony Lindgren <tony@atomide.com>, and fix for versatile express from Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>. Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Jason Wang <jason77.wang@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-07-06 18:30:06 +08:00
ldr \rp, =UART_PADDR @ physical
ldr \rv, =UART_VADDR @ virtual
MXC: add debug-macro.S for mxc This patch adds debug-macro.S for arch-mxc Disadvantage: Due to the board specific UART definition, these macros (and compile time) will fail for multi board kernels. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2008-07-05 16:02:51 +08:00
.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