kernel/arch/mips/bcm63xx/cpu.c, branch linux-5.1.y

MIPS: Audit and remove any unnecessary uses of module.h

2017-02-14T09:00:25Z

Historically a lot of these existed because we did not have a distinction between what was modular code and what was providing support to modules via EXPORT_SYMBOL and friends. That changed when we forked out support for the latter into the export.h file. This means we should be able to reduce the usage of module.h in code that is obj-y Makefile or bool Kconfig. In the case of some code where it is modular, we can extend that to also include files that are building basic support functionality but not related to loading or registering the final module; such files also have no need whatsoever for module.h The advantage in removing such instances is that module.h itself sources about 15 other headers; adding significantly to what we feed cpp, and it can obscure what headers we are effectively using. Since module.h might have been the implicit source for init.h (for __init) and for export.h (for EXPORT_SYMBOL) we consider each instance for the presence of either and replace/add as needed. Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code. Build coverage of all the mips defconfigs revealed the module.h header was masking a couple of implicit include instances, so we add the appropriate headers there. Signed-off-by: Paul Gortmaker Cc: David Daney Cc: John Crispin Cc: Ralf Baechle Cc: "Steven J. Hill" Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15131/ [james.hogan@imgtec.com: Preserve sort order where it already exists] Signed-off-by: James Hogan

MIPS: BCM63XX: Use pr_* instead of printk

2015-11-11T07:38:29Z

Signed-off-by: Gregory Fong Cc: Florian Fainelli Cc: Jonas Gorski Cc: Joe Perches Cc: Rusty Russell Cc: Nicolas Schichan Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11300/ Signed-off-by: Ralf Baechle

MIPS: Remove useless parentheses

2014-11-24T06:44:49Z

Based on the spatch @@ expression e; @@ - return (e); + return e; with heavy hand editing because some of the changes are either whitespace or identation only or result in excessivly long lines. Signed-off-by: Ralf Baechle

MIPS: BCM63xx: Remove !RUNTIME_DETECT code for bcmcpu_get_id

2014-07-30T13:25:05Z

Use the same pattern as with get_*_cpu_type() to allow the compiler to remove code for non enabled SoC types. Signed-off-by: Jonas Gorski Cc: linux-mips@linux-mips.org Cc: John Crispin Cc: Maxime Bizon Cc: Florian Fainelli Cc: Kevin Cernekee Patchwork: https://patchwork.linux-mips.org/patch/7273/ Signed-off-by: Ralf Baechle

MIPS: Use current_cpu_type() instead of c->cputype

2014-03-31T16:17:12Z

If current_cpu_type() is pre-defined in cpu-feature-overrides.h, This may save about 10k for the compressed kernel image(vmlinuz). Signed-off-by: Wu Zhangjin Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1901/ Signed-off-by: Ralf Baechle

MIPS: bcm63xx: cpu: Replace BUG() with panic()

2014-01-24T21:39:52Z

BUG() can be a noop if CONFIG_BUG is not selected, leading to the following build problem on a randconfig: arch/mips/bcm63xx/cpu.c: In function 'detect_cpu_clock': arch/mips/bcm63xx/cpu.c:254:1: error: control reaches end of non-void function [-Werror=return-type] We fix this problem by replacing BUG() with panic() since it's best to handle the case of an unknown board instead of silently returning a random clock frequency. Signed-off-by: Markos Chandras Acked-by: Steven J. Hill Acked-by: Jonas Gorski Signed-off-by: John Crispin Patchwork: http://patchwork.linux-mips.org/patch/5932/

MIPS: Cleanup CP0 PRId and CP1 FPIR register access masks

2013-09-18T18:25:19Z

Replace hardcoded CP0 PRId and CP1 FPIR register access masks throughout. The change does not touch places that use shifted or partial masks. Signed-off-by: Maciej W. Rozycki Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5838/ Signed-off-by: Ralf Baechle

MIPS: BCM63XX: add support for BCM3368 Cable Modem

2013-07-01T13:10:53Z

The Broadcom BCM3368 Cable Modem SoC is extremely similar to the existing BCM63xx DSL SoCs, in particular BCM6358, therefore little effort in the existing code base is required to get it supported. This patch adds support for the following on-chip peripherals: - two UARTS - GPIO - Ethernet - SPI - PCI - NOR Flash The most noticeable difference with 3368 is that it has its peripheral register at 0xfff8_0000 we check that separately in ioremap.h. Since 3368 is identical to 6358 for its clock and reset bits, we use them verbatim. Signed-off-by: Florian Fainelli Cc: linux-mips@linux-mips.org Cc: cernekee@gmail.com Cc: jogo@openwrt.org Patchwork: https://patchwork.linux-mips.org/patch/5499/ Signed-off-by: Ralf Baechle

MIPS: BCM63XX: add basic BCM6362 support

2013-05-07T23:19:03Z

Add basic support for detecting and booting the BCM6362. Signed-off-by: Jonas Gorski Patchwork: http://patchwork.linux-mips.org/patch/5009/ Acked-by: John Crispin

MIPS: BCM63XX: rework chip detection

2013-05-07T23:19:03Z

Instead of trying to use a correlation of cpu prid and chip id and hoping they will always be unique, use the cpu prid to determine the chip id register location and just read out the chip id. Signed-off-by: Jonas Gorski Patchwork: http://patchwork.linux-mips.org/patch/5008/ Acked-by: John Crispin