u-boot.git/arch/mips/lib, branch v2020.07-rc2

mips: spl: Flush cache before jumping to U-Boot proper

2020-04-27T18:29:33Z

This patch adds a MIPS specific jump_to_image_no_args() implementation, which flushes the U-Boot proper image loaded from the boot device in SPL before jumping to it. It has been noticed on MT76x8, that this cache flush is needed. Other MIPS platforms might need it as well. Signed-off-by: Stefan Roese Cc: Weijie Gao Cc: Daniel Schwierzeck Cc: Simon Goldschmidt Reviewed-by: Daniel Schwierzeck

mips: add support to restore exception vector base before booting linux

2020-04-27T18:29:33Z

In U-Boot the exception vector base will be moved to top of memory, to be used to display register dump when exception occurs. But some old linux kernel does not honor the base set in CP0_EBASE. A modified exception vector base will cause kernel crash. This patch adds an option to enable reset exception vector base to its previous value, or a user configured value before booting linux kernel. Reviewed-by: Daniel Schwierzeck Signed-off-by: Weijie Gao

mips: cmd: go: Flush cache before jumping to app/image

2020-04-09T17:00:00Z

It has been noticed on MT7628/88 platforms, that booting the RAM image does not work reliably. Sometimes it works and sometimes not. Debugging showed that this "might" be a cache related issue as very strange errors occurred (e.g. output corrupted etc). This patch adds a cache flush for the complete SDRAM area to the go cmd before jumping to the entry point for the MIPS architecture. The complete area is flushed as we don't know at this point, how big the area of the "application" really is. Signed-off-by: Stefan Roese Reviewed-by: Daniel Schwierzeck Tested-by: Mauro Condarelli Cc: Daniel Schwierzeck Cc: Mauro Condarelli Cc: Weijie Gao

MIPS: allow override of flush_dcache_range()

2020-04-09T16:55:59Z

Useful in custom HW designs which have a need to flush dcache range in a completely non standard way. Signed-off-by: Alex Nemirovsky

common: Move hang() to the same header as panic()

2020-01-17T22:53:40Z

At present panic() is in the vsprintf.h header file. That does not seem like an obvious choice for hang(), even though it relates to panic(). So let's put hang() in its own header. Signed-off-by: Simon Glass [trini: Migrate a few more files] Signed-off-by: Tom Rini

common: Move relocate_code() to init.h

2020-01-17T18:26:49Z

This is an init function so move it out of the common header. Avoid using the typedef so that we don't have to include the global_data header file. Also tidy up the function style in comments while we are here. Signed-off-by: Simon Glass

common: Move trap_init() out of common.h

2019-12-02T23:25:25Z

Move this function into the init.h header file. Signed-off-by: Simon Glass Reviewed-by: Tom Rini Reviewed-by: Daniel Schwierzeck

common: Move ARM cache operations out of common.h

2019-12-02T23:24:58Z

These functions are CPU-related and do not use driver model. Move them to cpu_func.h Signed-off-by: Simon Glass Reviewed-by: Daniel Schwierzeck Reviewed-by: Tom Rini

common: Move some cache and MMU functions out of common.h

2019-12-02T23:23:55Z

These functions belong in cpu_func.h. Another option would be cache.h but that code uses driver model and we have not moved these cache functions to use driver model. Since they are CPU-related it seems reasonable to put them here. Move them over. Signed-off-by: Simon Glass Reviewed-by: Tom Rini

MIPS: add compile time definition of L2 cache size

2019-10-25T15:20:43Z

If configuration is set to skip low level init, automatic probe of L2 cache size is not performed and the size is set to 0. Flushing or invalidating the L2 cache will fail in this case. Add a static configuration (SYS_DCACHE_LINE_SIZE) with default set to 0. Signed-off-by: Ramon Fried