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linux/arch/powerpc/sysdev/cpm2.c

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POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
[POWERPC] cpm2: Infrastructure code cleanup. Mostly sparse fixes (__iomem annotations, etc); also, cpm2_immr is used rather than creating many temporary mappings. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-14 15:30:44 -05:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
[POWERPC] cpm2: Infrastructure code cleanup. Mostly sparse fixes (__iomem annotations, etc); also, cpm2_immr is used rather than creating many temporary mappings. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-14 15:30:44 -05:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
[POWERPC] cpm2: Infrastructure code cleanup. Mostly sparse fixes (__iomem annotations, etc); also, cpm2_immr is used rather than creating many temporary mappings. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-14 15:30:44 -05:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
[POWRPC] CPM2: Eliminate section mismatch warning in cpm2_reset(). Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-12 16:54:32 -06:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
[POWERPC] cpm2: Infrastructure code cleanup. Mostly sparse fixes (__iomem annotations, etc); also, cpm2_immr is used rather than creating many temporary mappings. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-14 15:30:44 -05:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
[POWERPC] cpm: Describe multi-user ram in its own device node. The way the current CPM binding describes available multi-user (a.k.a. dual-ported) RAM doesn't work well when there are multiple free regions, and it doesn't work at all if the region doesn't begin at the start of the muram area (as the hardware needs to be programmed with offsets into this area). The latter situation can happen with SMC UARTs on CPM2, as its parameter RAM is relocatable, u-boot puts it at zero, and the kernel doesn't support moving it. It is now described with a muram node, similar to QE. The current CPM binding is sufficiently recent (i.e. never appeared in an official release) that compatibility with existing device trees is not an issue. The code supporting the new binding is shared between cpm1 and cpm2, rather than remain separated. QE should be able to use this code as well, once minor fixes are made to its device trees. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-28 14:06:16 -05:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
[POWERPC] CPM2: Reset the CPM when early debugging is not enabled. Similarly to what is done for PQ1-based platforms, this patch resets the PQ2 Communication Processor Module in cpm2_reset() when early debugging is not enabled. This helps avoiding conflicts when the boot loader configured the CPM in an unexpected way. Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-10 17:02:38 +02:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
[POWERPC] Move CPM command handling into the cpm drivers This patch moves the CPM command handling into commproc.c for CPM1 and cpm2_common.c. This is yet another preparation to get rid of drivers accessing the CPM via the global cpmp. Signed-off-by: Jochen Friedrich <jochen@scram.de> Acked-by: Scott Wood <scottwood@freescale.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
2007-11-26 18:03:40 +01:00
[POWERPC] Replace remaining __FUNCTION__ occurrences __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-03-29 08:21:07 +11:00
[POWERPC] Move CPM command handling into the cpm drivers This patch moves the CPM command handling into commproc.c for CPM1 and cpm2_common.c. This is yet another preparation to get rid of drivers accessing the CPM via the global cpmp. Signed-off-by: Jochen Friedrich <jochen@scram.de> Acked-by: Scott Wood <scottwood@freescale.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
2007-11-26 18:03:40 +01:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
[POWERPC] cpm2: Infrastructure code cleanup. Mostly sparse fixes (__iomem annotations, etc); also, cpm2_immr is used rather than creating many temporary mappings. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-14 15:30:44 -05:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
POWERPC: Get rid of remapping the whole immr The stuff below cleans up the code attempting to remap the whole cpm2_immr early, as well as places happily assuming that fact. This is more like the 2.4 legacy stuff, and is at least confusing and unclear now. To keep the world comfortable, a new mechanism is introduced: before accessing specific immr register/register set, one needs to map it, using cpm2_map(<reg>), for instance, access to CPM command register will look like volatile cpm_cpm2_t *cp = cpm2_map(im_cpm); keeping the code clear, yet without "already defined somewhere" cpm2_immr. So far, unmapping code is not implemented, but it's not a big deal to add it, if the whole idea makes sense. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:37:58 +04:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
POWERPC: Get rid of remapping the whole immr The stuff below cleans up the code attempting to remap the whole cpm2_immr early, as well as places happily assuming that fact. This is more like the 2.4 legacy stuff, and is at least confusing and unclear now. To keep the world comfortable, a new mechanism is introduced: before accessing specific immr register/register set, one needs to map it, using cpm2_map(<reg>), for instance, access to CPM command register will look like volatile cpm_cpm2_t *cp = cpm2_map(im_cpm); keeping the code clear, yet without "already defined somewhere" cpm2_immr. So far, unmapping code is not implemented, but it's not a big deal to add it, if the whole idea makes sense. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:37:58 +04:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
[POWERPC] cpm2: Fix off-by-one error in setbrg(). The hardware adds one to the BRG value to get the divider, so it must be subtracted by software. Without this patch, characters will occasionally be corrupted. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-05 14:29:10 -05:00
POWERPC: Get rid of remapping the whole immr The stuff below cleans up the code attempting to remap the whole cpm2_immr early, as well as places happily assuming that fact. This is more like the 2.4 legacy stuff, and is at least confusing and unclear now. To keep the world comfortable, a new mechanism is introduced: before accessing specific immr register/register set, one needs to map it, using cpm2_map(<reg>), for instance, access to CPM command register will look like volatile cpm_cpm2_t *cp = cpm2_map(im_cpm); keeping the code clear, yet without "already defined somewhere" cpm2_immr. So far, unmapping code is not implemented, but it's not a big deal to add it, if the whole idea makes sense. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:37:58 +04:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
[POWERPC] cpm2: Infrastructure code cleanup. Mostly sparse fixes (__iomem annotations, etc); also, cpm2_immr is used rather than creating many temporary mappings. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-14 15:30:44 -05:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
POWERPC: Get rid of remapping the whole immr The stuff below cleans up the code attempting to remap the whole cpm2_immr early, as well as places happily assuming that fact. This is more like the 2.4 legacy stuff, and is at least confusing and unclear now. To keep the world comfortable, a new mechanism is introduced: before accessing specific immr register/register set, one needs to map it, using cpm2_map(<reg>), for instance, access to CPM command register will look like volatile cpm_cpm2_t *cp = cpm2_map(im_cpm); keeping the code clear, yet without "already defined somewhere" cpm2_immr. So far, unmapping code is not implemented, but it's not a big deal to add it, if the whole idea makes sense. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:37:58 +04:00
[POWERPC] CPM: Rename commproc to cpm1 and cpm2_common.c to cpm2.c Rename commproc.[ch] to cpm1.[ch] to be more consistent with cpm2. Also rename cpm2_common.c to cpm2.c as suggested by Scott Wood. Adjust the includes accordingly. Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-01-25 15:31:42 +01:00
POWERPC: Get rid of remapping the whole immr The stuff below cleans up the code attempting to remap the whole cpm2_immr early, as well as places happily assuming that fact. This is more like the 2.4 legacy stuff, and is at least confusing and unclear now. To keep the world comfortable, a new mechanism is introduced: before accessing specific immr register/register set, one needs to map it, using cpm2_map(<reg>), for instance, access to CPM command register will look like volatile cpm_cpm2_t *cp = cpm2_map(im_cpm); keeping the code clear, yet without "already defined somewhere" cpm2_immr. So far, unmapping code is not implemented, but it's not a big deal to add it, if the whole idea makes sense. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:37:58 +04:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
[POWERPC] cpm2: Infrastructure code cleanup. Mostly sparse fixes (__iomem annotations, etc); also, cpm2_immr is used rather than creating many temporary mappings. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-14 15:30:44 -05:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
[POWERPC] cpm2: Infrastructure code cleanup. Mostly sparse fixes (__iomem annotations, etc); also, cpm2_immr is used rather than creating many temporary mappings. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-14 15:30:44 -05:00
POWERPC: Get rid of remapping the whole immr The stuff below cleans up the code attempting to remap the whole cpm2_immr early, as well as places happily assuming that fact. This is more like the 2.4 legacy stuff, and is at least confusing and unclear now. To keep the world comfortable, a new mechanism is introduced: before accessing specific immr register/register set, one needs to map it, using cpm2_map(<reg>), for instance, access to CPM command register will look like volatile cpm_cpm2_t *cp = cpm2_map(im_cpm); keeping the code clear, yet without "already defined somewhere" cpm2_immr. So far, unmapping code is not implemented, but it's not a big deal to add it, if the whole idea makes sense. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:37:58 +04:00
[POWERPC] cpm2: Infrastructure code cleanup. Mostly sparse fixes (__iomem annotations, etc); also, cpm2_immr is used rather than creating many temporary mappings. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-14 15:30:44 -05:00
POWERPC: Get rid of remapping the whole immr The stuff below cleans up the code attempting to remap the whole cpm2_immr early, as well as places happily assuming that fact. This is more like the 2.4 legacy stuff, and is at least confusing and unclear now. To keep the world comfortable, a new mechanism is introduced: before accessing specific immr register/register set, one needs to map it, using cpm2_map(<reg>), for instance, access to CPM command register will look like volatile cpm_cpm2_t *cp = cpm2_map(im_cpm); keeping the code clear, yet without "already defined somewhere" cpm2_immr. So far, unmapping code is not implemented, but it's not a big deal to add it, if the whole idea makes sense. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:37:58 +04:00
POWERPC: Move generic cpm2 stuff to powerpc This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:18:53 +04:00
POWERPC: overhaul with cpm2_map mechanism Incorporating the new way of cpm2 immr access, introduced in the previous patch, into CPM2 peripheral devices (fs_enet and cpm_uart). Both ppc and powerpc approved working( real actions taken in powerpc only, ppc just has a wrapper to keep init stuff consistent). Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:38:05 +04:00
[POWERPC] cpm2: Infrastructure code cleanup. Mostly sparse fixes (__iomem annotations, etc); also, cpm2_immr is used rather than creating many temporary mappings. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-14 15:30:44 -05:00
POWERPC: overhaul with cpm2_map mechanism Incorporating the new way of cpm2 immr access, introduced in the previous patch, into CPM2 peripheral devices (fs_enet and cpm_uart). Both ppc and powerpc approved working( real actions taken in powerpc only, ppc just has a wrapper to keep init stuff consistent). Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:38:05 +04:00
[POWERPC] cpm2: Add SCCs to cpm2_clk_setup(), and cpm2_smc_clk_setup(). Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-16 13:26:35 -05:00
POWERPC: overhaul with cpm2_map mechanism Incorporating the new way of cpm2 immr access, introduced in the previous patch, into CPM2 peripheral devices (fs_enet and cpm_uart). Both ppc and powerpc approved working( real actions taken in powerpc only, ppc just has a wrapper to keep init stuff consistent). Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:38:05 +04:00
[POWERPC] cpm2: Add SCCs to cpm2_clk_setup(), and cpm2_smc_clk_setup(). Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-16 13:26:35 -05:00
POWERPC: overhaul with cpm2_map mechanism Incorporating the new way of cpm2 immr access, introduced in the previous patch, into CPM2 peripheral devices (fs_enet and cpm_uart). Both ppc and powerpc approved working( real actions taken in powerpc only, ppc just has a wrapper to keep init stuff consistent). Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:38:05 +04:00
[POWERPC] Fix CPM2 SCC1 clock initialization. A missing break statement in a switch caused cpm2_clk_setup() to initialize SCC2 instead of SCC1. Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-02 16:46:31 +02:00
POWERPC: overhaul with cpm2_map mechanism Incorporating the new way of cpm2 immr access, introduced in the previous patch, into CPM2 peripheral devices (fs_enet and cpm_uart). Both ppc and powerpc approved working( real actions taken in powerpc only, ppc just has a wrapper to keep init stuff consistent). Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:38:05 +04:00
[POWERPC] Whitespace cleanup in arch/powerpc Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-21 02:36:19 +10:00
POWERPC: overhaul with cpm2_map mechanism Incorporating the new way of cpm2 immr access, introduced in the previous patch, into CPM2 peripheral devices (fs_enet and cpm_uart). Both ppc and powerpc approved working( real actions taken in powerpc only, ppc just has a wrapper to keep init stuff consistent). Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:38:05 +04:00
[POWERPC] cpm2: Add SCCs to cpm2_clk_setup(), and cpm2_smc_clk_setup(). Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-16 13:26:35 -05:00
POWERPC: overhaul with cpm2_map mechanism Incorporating the new way of cpm2 immr access, introduced in the previous patch, into CPM2 peripheral devices (fs_enet and cpm_uart). Both ppc and powerpc approved working( real actions taken in powerpc only, ppc just has a wrapper to keep init stuff consistent). Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:38:05 +04:00
[POWERPC] cpm2: Add SCCs to cpm2_clk_setup(), and cpm2_smc_clk_setup(). Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-16 13:26:35 -05:00
POWERPC: overhaul with cpm2_map mechanism Incorporating the new way of cpm2 immr access, introduced in the previous patch, into CPM2 peripheral devices (fs_enet and cpm_uart). Both ppc and powerpc approved working( real actions taken in powerpc only, ppc just has a wrapper to keep init stuff consistent). Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:38:05 +04:00
[POWERPC] cpm2: Add SCCs to cpm2_clk_setup(), and cpm2_smc_clk_setup(). Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-16 13:26:35 -05:00
POWERPC: overhaul with cpm2_map mechanism Incorporating the new way of cpm2 immr access, introduced in the previous patch, into CPM2 peripheral devices (fs_enet and cpm_uart). Both ppc and powerpc approved working( real actions taken in powerpc only, ppc just has a wrapper to keep init stuff consistent). Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21 22:38:05 +04:00
[POWERPC] cpm2: Add SCCs to cpm2_clk_setup(), and cpm2_smc_clk_setup(). Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-16 13:26:35 -05:00
[POWERPC] cpm2: Add cpm2_set_pin(). This provides a generic way for board code to set up CPM pins, rather than directly poking magic values into registers. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-16 13:32:24 -05:00