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

command: Remove the cmd_tbl_t typedef

2020-05-18T22:36:55Z

We should not use typedefs in U-Boot. They cannot be used as forward declarations which means that header files must include the full header to access them. Drop the typedef and rename the struct to remove the _s suffix which is now not useful. This requires quite a few header-file additions. Signed-off-by: Simon Glass

common: Drop init.h from common header

2020-05-18T21:33:33Z

Move this uncommon header out of the common header. Signed-off-by: Simon Glass

mips: add a option to support not reserving malloc space on initial stack

2020-04-27T18:29:33Z

The initial stack on some platforms is too small to hold a large malloc space. This patch adds a option to allow these platforms not reserving the malloc space on initial stack. These platforms should set the malloc base after DRAM is usable. Reviewed-by: Stefan Roese Signed-off-by: Weijie Gao

mips: add an option to support initialize SRAM for initial stack

2020-04-27T18:29:33Z

Currently CONFIG_MIPS_INIT_STACK_IN_SRAM assumes the memory space for the initial stack can be used directly. However on some platform the SRAM needs initialization, e.g. lock cache. This patch adds an option to allow a new function mips_sram_init() being called before setup_stack_gd. Reviewed-by: Daniel Schwierzeck Reviewed-by: Stefan Roese Signed-off-by: Weijie Gao

mips: add an option to enable u_boot_list section for SPL loaders in u-boot-spl.lds

2020-04-27T18:29:33Z

u_boot_list is not only used by DM, but also by some SPL image load methods such as spl_nor.c. This patch adds an option CONFIG_SPL_LOADER_SUPPORT in conjunction with CONFIG_SPL_DM surrounding the u_boot_list section to make sure SPL image loaders can be correctly built into u-boot SPL without DM enabled. Reviewed-by: Stefan Roese Reviewed-by: Daniel Schwierzeck Signed-off-by: Weijie Gao

mips: enable support for appending dtb to spl binary

2020-04-27T18:29:33Z

If CONFIG_SPL_OF_CONTROL is enabled for SPL and CONFIG_OF_SEPARATE is also enabled, the dtb will be appended to the u-boot-spl.bin. When calling dm_init_and_scan() in SPL, fdtdec_setup() will try to locate dtb at the end of u-boot-spl.bin, by referencing to _image_binary_end. However _image_binary_end is currently missing in u-boot-spl.lds. This patch adds _image_binary_end to u-boot-spl.lds to make sure linking u-boot-spl will not fail. Reviewed-by: Stefan Roese Reviewed-by: Daniel Schwierzeck Signed-off-by: Weijie Gao

mips: start.S: avoid overwriting outside gd when clearing global data in stack

2020-04-27T18:29:33Z

When setting up initial stack, global data will also be put in the stack, and being cleared. The assembler instructions for clearing gd is as follows: move t0, k0 1: PTR_S zero, 0(t0) blt t0, t1, 1b PTR_ADDIU t0, PTRSIZE t0 is the start address of gd, t1 is the end address of gd (t0 + GD_SIZE). [PTR_ADDIU t0, PTRSIZE] is in the delay slot of [blt t0, t1, 1b], so it will be executed before the branch operation. However the comparison for the BLT instruction is done before executing the delay slot. This means when the last word just before k1 is cleared, the loop will continue to run once. This will clear an extra word at k1, which is outside the global data. Global data is placed at the top of the stack. If the initial stack is a SRAM or locked cache, the area outside them may be inaccessible. A write operation performed in this area may cause an exception. To solve this, [PTR_ADDIU t0, PTRSIZE] should be placed before the BLT instruction. Reviewed-by: Daniel Schwierzeck Reviewed-by: Stefan Roese Signed-off-by: Weijie Gao

MIPS: allow override of get_tbclk()

2020-04-09T16:55:59Z

Allow SoC or board layers with reconfigurable cpu clocks capabilties to do implementation specific lookups and service get_tbclk() requests. Signed-off-by: Alex Nemirovsky

common: Move get_tbclk() to time.h

2020-01-17T18:27:30Z

This function related to timer and most of the timer functions are in time.h, so move this function there. Signed-off-by: Simon Glass

common: Move interrupt functions into a new header

2019-12-02T23:25:00Z

These functions do not use driver model but are fairly widely used in U-Boot. But it is not clear that they will use driver model anytime soon, so we don't want to label them as 'legacy'. Move them to a new irq_func.h header file. Avoid the name 'irq.h' since it is widely used in U-Boot already. Signed-off-by: Simon Glass Reviewed-by: Tom Rini