Commit Graph

9 Commits

Author SHA1 Message Date
Xianglong Du
a2a2568311 ARM: prima2: rstc: fix some minor checkpatch issues
this patch fixes the below minor issues:

WARNING: line over 80 characters
39: FILE: arch/arm/mach-prima2/rstc.c:39:
+                * Writing 1 to this bit resets corresponding block. Writing 0 to this

WARNING: line over 80 characters
41: FILE: arch/arm/mach-prima2/rstc.c:41:
+                * datasheet doesn't require explicit delay between the set and clear

WARNING: line over 80 characters
44: FILE: arch/arm/mach-prima2/rstc.c:44:
+               writel(readl(sirfsoc_rstc_base + (reset_bit / 32) * 4) | (1 << reset_bit),

WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
46: FILE: arch/arm/mach-prima2/rstc.c:46:
+               msleep(10);

WARNING: line over 80 characters
47: FILE: arch/arm/mach-prima2/rstc.c:47:
+               writel(readl(sirfsoc_rstc_base + (reset_bit / 32) * 4) & ~(1 << reset_bit),

WARNING: line over 80 characters
52: FILE: arch/arm/mach-prima2/rstc.c:52:
+                * Writing 1 to SET register resets corresponding block. Writing 1 to CLEAR

WARNING: line over 80 characters
54: FILE: arch/arm/mach-prima2/rstc.c:54:
+                * datasheet doesn't require explicit delay between the set and clear

WARNING: line over 80 characters
57: FILE: arch/arm/mach-prima2/rstc.c:57:
+               writel(1 << reset_bit, sirfsoc_rstc_base + (reset_bit / 32) * 8);

WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
58: FILE: arch/arm/mach-prima2/rstc.c:58:
+               msleep(10);

WARNING: line over 80 characters
59: FILE: arch/arm/mach-prima2/rstc.c:59:
+               writel(1 << reset_bit, sirfsoc_rstc_base + (reset_bit / 32) * 8 + 4);

total: 0 errors, 10 warnings, 120 lines checked

Signed-off-by: Xianglong Du <Xianglong.Du@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
2014-05-12 21:43:48 +08:00
Arnd Bergmann
48352e5286 ARM: prima2: build reset code standalone
The prima2 platform code currently depends on the rstc
implementation and that in turn depends on the reset
controller framework. This removes the platform dependency
by letting the driver access arm_pm_restart directly
to turn the driver into a standalone entity, and also
removes the dependency on the reset controller framework
by using "if (IS_ENABLED(CONFIG_RESET_CONTROLLER))". This
will cause all code that is used for the reset controller
to be dropped by the compiler if the framework is disabled.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-03-17 19:46:12 +01:00
Barry Song
e7eda91f63 ARM: prima2: move to generic reset controller driver framework
this moves to generic IP module reset framework, and make other drivers
use common device_reset() API.

Cc: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Bin Shi <Bin.Shi@csr.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
2014-03-05 10:33:47 +08:00
Robin Holt
7b6d864b48 reboot: arm: change reboot_mode to use enum reboot_mode
Preparing to move the parsing of reboot= to generic kernel code forces
the change in reboot_mode handling to use the enum.

[akpm@linux-foundation.org: fix arch/arm/mach-socfpga/socfpga.c]
Signed-off-by: Robin Holt <holt@sgi.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Russ Anderson <rja@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-09 10:33:29 -07:00
Haojian Zhuang
7e5955db45 ARM: prima2: fix incorrect panic usage
In prima2, some functions of checking DT is registered in initcall
level. If it doesn't match the compatible name of sirf, kernel
will panic. It blocks the usage of multiplatform on other verndor.

The error message is in below.

Knic - not syncing: unable to find compatible pwrc node in dtb
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.0-rc3-00006-gd7f26ea-dirty #86
[<c0013adc>] (unwind_backtrace+0x0/0xf8) from [<c0011430>] (show_stack+0x10/0x1)
[<c0011430>] (show_stack+0x10/0x14) from [<c026f724>] (panic+0x90/0x1e8)
[<c026f724>] (panic+0x90/0x1e8) from [<c03267fc>] (sirfsoc_of_pwrc_init+0x24/0x)
[<c03267fc>] (sirfsoc_of_pwrc_init+0x24/0x58) from [<c0320864>] (do_one_initcal)
[<c0320864>] (do_one_initcall+0x90/0x150) from [<c0320a20>] (kernel_init_freeab)
[<c0320a20>] (kernel_init_freeable+0xfc/0x1c4) from [<c026b9e8>] (kernel_init+0)
[<c026b9e8>] (kernel_init+0x8/0xe4) from [<c000e158>] (ret_from_fork+0x14/0x3c)

Signen-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-06-11 00:11:31 -07:00
Barry Song
0ecb40ca35 ARM: PRIMA2: rstc: enable the support for Marco
marco has SET/CLEAR registers pair for rstc to avoid read-modify-write,
this patch detects the mach typer and access registers based on SoC.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
2013-01-22 19:38:48 +08:00
Russell King
125c4033f0 ARM: restart: prima2: use new restart hook
Hook these platforms restart code into the new restart hook rather
than using arch_reset().

Reviewed-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-01-05 12:57:17 +00:00
Jamie Iles
6a53747be5 ARM: CSR: add missing sentinels to of_device_id tables
The of_device_id tables used for matching should be terminated with
empty sentinel values.

Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Barry Song <baohua.song@csr.com>
2011-09-11 09:11:26 +08:00
Binghua Duan
02c981c07b ARM: CSR: Adding CSR SiRFprimaII board support
SiRFprimaII is the latest generation application processor from CSR’s
Multifunction SoC product family. Designed around an ARM cortex A9 core,
high-speed memory bus, advanced 3D accelerator and full-HD multi-format
video decoder, SiRFprimaII is able to meet the needs of complicated
applications for modern multifunction devices that require heavy concurrent
applications and fluid user experience. Integrated with GPS baseband,
analog and PMU, this new platform is designed to provide a cost effective
solution for Automotive and Consumer markets.

This patch adds the basic support for this SoC and EVB board based on device
tree. It is following the ZYNQ of Xilinx in some degree.

Signed-off-by: Binghua Duan <Binghua.Duan@csr.com>
Signed-off-by: Rongjun Ying <Rongjun.Ying@csr.com>
Signed-off-by: Zhiwu Song <Zhiwu.Song@csr.com>
Signed-off-by: Yuping Luo <Yuping.Luo@csr.com>
Signed-off-by: Bin Shi <Bin.Shi@csr.com>
Signed-off-by: Huayi Li <Huayi.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
2011-07-09 07:19:28 +08:00