kernel/linux.git/arch/mips/generic, branch v6.12.80

mips: generic: add fdt fixup for Realtek reference board

2024-07-12T11:12:13+00:00

The bootloader used on the Realtek RTL9302C boards is an ancient vendor fork of U-Boot that doesn't understand device trees. So to run a modern kernel it is necessary use one of the APPENDED_DTB options. When appending the DTB the inintrd information, if present, needs to be inserted into the /chosen device tree node. The bootloader provides the initrd start/size via the firmware environment. Add a fdt fixup that will update the device tree with the initrd information. Signed-off-by: Chris Packham Signed-off-by: Thomas Bogendoerfer

MIPS: Share generic kernel code with other architecture

2024-02-20T12:36:25+00:00

Some architectures might seek to utilize a significant portion of the generic kernel code while maintaining independence from the generic kernel due to specific peculiarities. This patch allows for the reuse of core code, preventing unnecessary duplication. Suggested-by: Thomas Bogendoerfer Reviewed-by: Jiaxun Yang Signed-off-by: Gregory CLEMENT Signed-off-by: Thomas Bogendoerfer

mips: ingenic: Enable EXT/2 divider on JZ4750/55/60 if EXT is 24 MHz

2023-06-09T07:54:17+00:00

The JZ4750, JZ4755 and JZ4760 (non-B version) support using a 24 MHz external crystal oscillator instead of the typical 12 MHz one. However, most of the SoC's IP blocks only work with a 12 MHz clock. Thanksfully, there is a /2 divider we can enable when a 24 MHz external crystal is present. Force-enable this /2 divider when the oscillator is 24 MHz, so that the SoC always uses a 12 MHz clock internally. It is done here, and not in the clocks driver, because we need the EXT clock to be 12 MHz for the early console to work, and the clocks driver probes way too late. Signed-off-by: Paul Cercueil Signed-off-by: Thomas Bogendoerfer

mips: ingenic: Remove useless __maybe_unused

2023-06-09T07:54:17+00:00

These flags are useless in this case as the code referencing these data structures is always seen by the compiler (and not behind #ifdef guards). Signed-off-by: Paul Cercueil Signed-off-by: Thomas Bogendoerfer

arch: mips: generic: Add missing of_node_put() in board-ranchu.c

2022-06-21T15:04:30+00:00

In ranchu_measure_hpt_freq(), of_find_compatible_node() will return a node pointer with refcount incremented. We should use of_put_node() when it is not used anymore. Signed-off-by: Liang He Signed-off-by: Thomas Bogendoerfer

mips: ingenic: Do not manually reference the CPU clock

2022-05-18T20:56:26+00:00

It isn't necessary to manually walk the device tree and enable the CPU clock anymore. The CPU and other necessary clocks are now flagged as critical in the clock driver, which accomplishes the same thing in a more declarative fashion. Signed-off-by: Aidan MacDonald Reviewed-by: Paul Cercueil Link: https://lore.kernel.org/r/20220428164454.17908-4-aidanmacdonald.0x0@gmail.com Tested-by: 周琰杰 (Zhou Yanjie) # On X1000 and X1830 Signed-off-by: Stephen Boyd

MIPS: new Kconfig option ZBOOT_LOAD_ADDRESS

2022-01-02T13:17:30+00:00

If this option is not 0x0, it will be used for zboot load address. Otherwise, the result of calc_vmlinuz_load_addr will be used. The zload-y value for generic are also removed then, as the current value breaks booting on qemu -M boston. The result of calc_vmlinuz_load_addr works well for most of cases. The default value of bcm47xx keeps as it currently. Signed-off-by: YunQiang Su Signed-off-by: Thomas Bogendoerfer

MIPS: enable both vmlinux.gz.itb and vmlinuz for generic

2022-01-02T13:17:00+00:00

vmlinux.gz.itb should be appended to all-$(CONFIG_MIPS_GENERIC) instead of replacing. Otherwise, no vmlinuz will be built. Signed-off-by: YunQiang Su Signed-off-by: Thomas Bogendoerfer

MIPS: generic: enable SMP on SMVP systems

2021-12-21T12:51:47+00:00

In addition to CPS SMP setups, also try to initialise MT SMP setups with multiple VPEs per CPU core. CMP SMP support is not provided as it is considered deprecated. Additionally, rework the code by dropping the err variable and make it similar to how other platforms perform this initialisation. Co-developed-by: INAGAKI Hiroshi Signed-off-by: INAGAKI Hiroshi Signed-off-by: Sander Vanheule Signed-off-by: Thomas Bogendoerfer

MIPS: generic/yamon-dt: fix uninitialized variable error

2021-11-16T08:27:01+00:00

In the case where fw_getenv returns an error when fetching values for ememsizea and memsize then variable phys_memsize is not assigned a variable and will be uninitialized on a zero check of phys_memsize. Fix this by initializing phys_memsize to zero. Cleans up cppcheck error: arch/mips/generic/yamon-dt.c:100:7: error: Uninitialized variable: phys_memsize [uninitvar] Fixes: f41d2430bbd6 ("MIPS: generic/yamon-dt: Support > 256MB of RAM") Signed-off-by: Colin Ian King Signed-off-by: Thomas Bogendoerfer