linux-toradex.git/include/asm-mips/sibyte, branch v2.6.19.2 Linux kernel for Apalis and Colibri modules [MIPS] Fixup migration to GENERIC_TIME 2006-10-31T20:13:23+00:00 Atsushi Nemoto anemo@mba.ocn.ne.jp 2006-10-23T15:21:27+00:00 16b7b2ac0148e839da86af8747b6fa4aad43a9b7 Since we already moved to GENERIC_TIME, we should implement alternatives of old do_gettimeoffset routines to get sub-jiffies resolution from gettimeofday(). This patch includes: * MIPS clocksource support (based on works by Manish Lachwani). * remove unused gettimeoffset routines and related codes. * remove unised 64bit do_div64_32(). * simplify mips_hpt_init. (no argument needed, __init tag) * simplify c0_hpt_timer_init. (no need to write to c0_count) * remove some hpt_init routines. * mips_hpt_mask variable to specify bitmask of hpt value. * convert jmr3927_do_gettimeoffset to jmr3927_hpt_read. * convert ip27_do_gettimeoffset to ip27_hpt_read. * convert bcm1480_do_gettimeoffset to bcm1480_hpt_read. * simplify sb1250 hpt functions. (no need to subtract and shift) Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
Since we already moved to GENERIC_TIME, we should implement alternatives
of old do_gettimeoffset routines to get sub-jiffies resolution from
gettimeofday().  This patch includes:

 * MIPS clocksource support (based on works by Manish Lachwani).
 * remove unused gettimeoffset routines and related codes.
 * remove unised 64bit do_div64_32().
 * simplify mips_hpt_init. (no argument needed, __init tag)
 * simplify c0_hpt_timer_init. (no need to write to c0_count)
 * remove some hpt_init routines.
 * mips_hpt_mask variable to specify bitmask of hpt value.
 * convert jmr3927_do_gettimeoffset to jmr3927_hpt_read.
 * convert ip27_do_gettimeoffset to ip27_hpt_read.
 * convert bcm1480_do_gettimeoffset to bcm1480_hpt_read.
 * simplify sb1250 hpt functions. (no need to subtract and shift)
    
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
[MIPS] s/__ASSEMBLER__/__ASSEMBLY__/ for clarity sake. 2006-09-27T12:37:57+00:00 Ralf Baechle ralf@linux-mips.org 2006-09-25T14:49:49+00:00 36396f3c36b04f79438f87a0fccfa76aa3de6af9 Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Don't include linux/config.h from anywhere else in include/ 2006-04-26T11:56:16+00:00 David Woodhouse dwmw2@infradead.org 2006-04-26T11:56:16+00:00 62c4f0a2d5a188f73a94f2cb8ea0dba3e7cf0a7f Signed-off-by: David Woodhouse <dwmw2@infradead.org> 
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
[MIPS] Sibyte: Fix race in sb1250_gettimeoffset(). 2006-03-18T16:59:30+00:00 Ralf Baechle ralf@linux-mips.org 2006-03-15T00:03:29+00:00 a904f7478561464f9fe74929b81fec237b6ff4c3 From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>: sb1250_gettimeoffset() simply reads the current cpu 0 timer remaining value, however once this counter reaches 0 and the interrupt is raised, it immediately resets and begins to count down again. If sb1250_gettimeoffset() is called on cpu 1 via do_gettimeofday() after the timer has reset but prior to cpu 0 processing the interrupt and taking write_seqlock() in timer_interrupt() it will return a full value (or close to it) causing time to jump backwards 1ms. Once cpu 0 handles the interrupt and timer_interrupt() gets far enough along it will jump forward 1ms. Fix this problem by implementing mips_hpt_*() on sb1250 using a spare timer unrelated to the existing periodic interrupt timers. It runs at 1Mhz with a full 23bit counter. This eliminated the custom do_gettimeoffset() for sb1250 and allowed use of the generic fixed_rate_gettimeoffset() using mips_hpt_*() and timerhi/timerlo. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
    
From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>:
    
sb1250_gettimeoffset() simply reads the current cpu 0 timer remaining
value, however once this counter reaches 0 and the interrupt is raised,
it immediately resets and begins to count down again.
    
If sb1250_gettimeoffset() is called on cpu 1 via do_gettimeofday() after
the timer has reset but prior to cpu 0 processing the interrupt and
taking write_seqlock() in timer_interrupt() it will return a full value
(or close to it) causing time to jump backwards 1ms. Once cpu 0 handles
the interrupt and timer_interrupt() gets far enough along it will jump
forward 1ms.
    
Fix this problem by implementing mips_hpt_*() on sb1250 using a spare
timer unrelated to the existing periodic interrupt timers. It runs at
1Mhz with a full 23bit counter.  This eliminated the custom
do_gettimeoffset() for sb1250 and allowed use of the generic
fixed_rate_gettimeoffset() using mips_hpt_*() and timerhi/timerlo.
    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
[MIPS] Sibyte: Fix M_SCD_TIMER_INIT and M_SCD_TIMER_CNT wrong field width. 2006-03-18T16:59:29+00:00 Ralf Baechle ralf@linux-mips.org 2006-03-14T23:47:35+00:00 a77f124294822203660b0926392b963cfa72fcf4 From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>: Field width should be 23 bits not 20 bits. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
    
From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>:
    
Field width should be 23 bits not 20 bits.
    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Support for BigSur board. 2005-10-29T18:32:47+00:00 Andrew Isaacson adi@broadcom.com 2005-10-20T06:57:11+00:00 9a6dcea10308df50ed54d6d5a43c9f6c3e927118 Signed-Off-By: Andy Isaacson <adi@broadcom.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
    
Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Sibyte header cleanup 2005-10-29T18:32:46+00:00 Andrew Isaacson adi@broadcom.com 2005-10-20T06:55:57+00:00 4f19f990475dc4465ca6906ba03a55805d4c1402 Update sibyte headers to match Broadcom internal copies: - comment cleanup and updates - fix LittleSur part number to match the board silkscreen Signed-Off-By: Andy Isaacson <adi@broadcom.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
    
Update sibyte headers to match Broadcom internal copies:
 - comment cleanup and updates
 - fix LittleSur part number to match the board silkscreen
    
Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
BCM1480 headers 2005-10-29T18:32:45+00:00 Andrew Isaacson adi@broadcom.com 2005-10-20T06:55:11+00:00 4cbf2beac2265b3619be9c8e88ff4ff45b49d7c2 Add header files for BCM1480/1280/1455/1255 family of chips, and update sb1250 headers which are shared by BCM1480 family. Signed-Off-By: Andy Isaacson <adi@broadcom.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> diff --git a/include/asm-mips/sibyte/bcm1480_int.h b/include/asm-mips/sibyte/bcm1480_int.h new file mode 100644 
    
Add header files for BCM1480/1280/1455/1255 family of chips, and
update sb1250 headers which are shared by BCM1480 family.
    
Signed-Off-By: Andy Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/include/asm-mips/sibyte/bcm1480_int.h b/include/asm-mips/sibyte/bcm1480_int.h
new file mode 100644
Cleanup Sibyte Kconfig a bit further. 2005-10-29T18:32:39+00:00 Ralf Baechle ralf@linux-mips.org 2005-10-29T18:32:39+00:00 3cd9b6802d39c155d44fc8076b6c72c3f7e919ed Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Sparseify MIPS. 2005-10-29T18:30:50+00:00 Ralf Baechle ralf@linux-mips.org 2005-03-01T19:22:29+00:00 fe00f943e0ef98b4057abcc2940d631a975b43cd Signed-off-by: Ralf Baechle <ralf@linux-mips.org> 
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>