kernel.git/arch/mips/bmips/setup.c, branch linux-4.19.y

MIPS: Use address-of operator on section symbols

2022-05-15T17:41:57Z

commit d422c6c0644bccbb1ebeefffa51f35cec3019517 upstream. When building xway_defconfig with clang: arch/mips/lantiq/prom.c:82:23: error: array comparison always evaluates to true [-Werror,-Wtautological-compare] else if (__dtb_start != __dtb_end) ^ 1 error generated. These are not true arrays, they are linker defined symbols, which are just addresses. Using the address of operator silences the warning and does not change the resulting assembly with either clang/ld.lld or gcc/ld (tested with diff + objdump -Dr). Do the same thing across the entire MIPS subsystem to ensure there are no more warnings around this type of comparison. Link: https://github.com/ClangBuiltLinux/linux/issues/1232 Signed-off-by: Nathan Chancellor Acked-by: Florian Fainelli Signed-off-by: Thomas Bogendoerfer Cc: Sudip Mukherjee Signed-off-by: Greg Kroah-Hartman

MIPS: bmips: remove unnecessary call to register "simple-bus"

2018-06-24T16:27:27Z

The DT core will register "simple-bus" by default, so it is not necessary for arch specific code to do so unless there are custom match entries, auxdata or parent device. Neither of those apply here, so remove the call. Cc: Kevin Cernekee Cc: Florian Fainelli Cc: Ralf Baechle Cc: Paul Burton Cc: James Hogan Cc: linux-mips@linux-mips.org Signed-off-by: Rob Herring Patchwork: https://patchwork.linux-mips.org/patch/19590/ Signed-off-by: Paul Burton Cc: linux-kernel@vger.kernel.org

MIPS: BMIPS: Support APPENDED_DTB

2016-10-06T15:31:02Z

Use appended DTB when available. Signed-off-by: Jaedon Shin Cc: Kevin Cernekee Cc: Florian Fainelli Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14337/ Signed-off-by: Ralf Baechle

MIPS: BMIPS: Add BCM6362 support

2016-10-04T14:13:57Z

BCM6362 is a BMIPS4350 SoC which needs the same fixup as BCM6368 in order to enable SMP support. Signed-off-by: Álvaro Fernández Rojas Cc: f.fainelli@gmail.com Cc: jogo@openwrt.org Cc: cernekee@gmail.com Cc: robh@kernel.org Cc: simon@fire.lp0.eu Cc: john@phrozen.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13845/ Signed-off-by: Ralf Baechle

MIPS: BMIPS: Add BCM3368 support

2016-10-04T14:13:57Z

BCM3368 has a shared TLB which conflicts with current SMP support, so it must be disabled for now. Signed-off-by: Álvaro Fernández Rojas Cc: f.fainelli@gmail.com Cc: jogo@openwrt.org Cc: cernekee@gmail.com Cc: robh@kernel.org Cc: simon@fire.lp0.eu Cc: john@phrozen.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13840/ Signed-off-by: Ralf Baechle

MIPS: store the appended dtb address in a variable

2016-08-02T12:00:16Z

Instead of rewriting the arguments to match the UHI spec, store the address of a appended or UHI supplied dtb in fw_supplied_dtb. That way the original bootloader arugments are kept intact while still making the use of an appended dtb invisible for mach code. Mach code can still find out if it is an appended dtb by comparing fw_arg1 with fw_supplied_dtb. Signed-off-by: Jonas Gorski Cc: Kevin Cernekee Cc: Florian Fainelli Cc: John Crispin Cc: Paul Burton Cc: James Hogan Cc: Alban Bedel Cc: Daniel Gimpelevich Cc: Antony Pavlov Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/13699/ Signed-off-by: Ralf Baechle

MIPS: BMIPS: Add support for BCM63268

2016-05-13T12:02:09Z

This SoC is very similar to BCM63168 and Broadcom usually refers to them as BCM63268. Add BCM63268 and missing BCM63168 to device tree documentation. Signed-off-by: Álvaro Fernández Rojas Acked-by: Rob Herring Cc: f.fainelli@gmail.com Cc: jogo@openwrt.org Cc: cernekee@gmail.com Cc: robh@kernel.org Cc: simon@fire.lp0.eu Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13042/ Signed-off-by: Ralf Baechle

MIPS: BMIPS: Add BCM6358 support

2016-05-13T12:02:09Z

BCM6358 has a shared TLB which conflicts with current SMP support, so it must be disabled for now. BCM6358 uses >= 0xfffe0000 addresses for internal registers, which need to be remapped (by using a simplified version of BRCM63xx ioremap.h). However, 0xfff80000 is a better address, since it also covers BCM3368, leaving the possibility to add it in the future. Signed-off-by: Álvaro Fernández Rojas Cc: f.fainelli@gmail.com Cc: jogo@openwrt.org Cc: cernekee@gmail.com Cc: robh@kernel.org Cc: simon@fire.lp0.eu Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13040/ Signed-off-by: Ralf Baechle

MIPS: BMIPS: Add early CPU initialization code

2016-05-13T12:01:55Z

Port the stblinux-3.3 code to perform a bunch of CPU-specific initialization, make it compatible with run-time detection of the CPU, and unroll the brcmstb-specific macros: BDEV_RB(), BDEV_UNSET. The "pref 30" disabling is done as a quirk. This is a preliminary change to allow the use of the "rotr" instruction gated by cpu_has_rixi. Signed-off-by: Florian Fainelli Cc: john@phrozen.org Cc: cernekee@gmail.com Cc: jon.fraser@broadcom.com Cc: pgynther@google.com Cc: paul.burton@imgtec.com Cc: ddaney.cavm@gmail.com Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/12504/ Signed-off-by: Ralf Baechle

MIPS: bmips: Support SMP on BCM63168

2016-01-04T08:42:26Z

The BCM63168 requires the same CPU1 fix as BCM6368. Signed-off-by: Simon Arlott Cc: Kevin Cernekee Cc: Florian Fainelli Cc: linux-mips@linux-mips.org Cc: Linux Kernel Mailing List Patchwork: https://patchwork.linux-mips.org/patch/11487/ Signed-off-by: Ralf Baechle