opensbi.git/platform/sifive, branch v0.7

lib: utils: Move fdt fixup helper routines to a different file

2020-03-24T08:00:32Z

FDT helper file contain both fdt fixup and parsing functions. Split the fixup related functions to a separate file for a better code organization. Signed-off-by: Atish Patra Reviewed-by: Anup Patel

platform: sifive/fu540: Remove FU540_ENABLED_HART_MASK option

2020-03-19T04:02:45Z

The FU540_ENABLED_HART_MASK compile time option was added for initial bring-up on SiFive Unleashed. This option is redundant now because disabled_hart_mask is already removed. Based on this rationale, we remove FU540_ENABLED_HART_MASK compile time option. Signed-off-by: Anup Patel Reviewed-by: Bin Meng Reviewed-by: Atish Patra

include: sbi_platform: Introduce HART index to HART id table

2020-03-19T04:00:01Z

A platform can have discontinuous and/or sparse HART ids so we cannot always assume a set of HARTs with continuous HART ids. This patch adds support for discontinuous and sparse HART ids by introducing HART index to HART id table. This table has platform hart_count entries and it maps HART index to HART id. The HART index to HART id table has only two restrictions: 1. HART index < sbi_platform hart_count 2. HART id < SBI_HARTMASK_MAX_BITS Example1: Let's say we have a platform with 2 HART ids 11 and 22, for such a a platform: hart_count = 2 hart_index2id[0] = 11 hart_index2id[1] = 22 Example2: Let's say we have a platform with 5 HARTs ids 0, 1, 2, 3, and 4 but out of these HART with id 0 is not usable so for such a platform: hart_count = 5 hart_index2id[0] = -1U hart_index2id[1] = 1 hart_index2id[2] = 2 hart_index2id[3] = 3 hart_index2id[4] = 4 OR hart_count = 4 hart_index2id[0] = 1 hart_index2id[1] = 2 hart_index2id[2] = 3 hart_index2id[3] = 4 With HART index to HART id table in place, the hart_disabled() callback is now redundant so we remove it as well. Signed-off-by: Anup Patel Reviewed-by: Bin Meng Reviewed-by: Atish Patra

platform: Update to call general DT fix-up helper

2020-03-18T05:39:31Z

Platform andes/ae350, ariane-fpga, qemu/virt and sifive/fu540 codes have been updated to call this general DT fix-up helper. Signed-off-by: Bin Meng Reviewed-by: Anup Patel

platform: sifive/fu540: Replace cpu0 node fix-up with the new helper

2020-03-18T05:26:43Z

This replaces the FU540 specific cpu0 node "status" property fix-up with the newly introduced generic fdt_cpu_fixup() helper. Unlike previous logic, the helper routine does not test the "mmu-type" property to determine which node we should fix up, instead it uses sbi_platform_hart_disabled() API. Signed-off-by: Bin Meng Reviewed-by: Anup Patel

platform: sifive/fu540: Remove "stdout-path" fix-up

2020-03-18T04:32:08Z

As of today the upstream U-Boot & Linux kernel ships a device tree that already has "stdout-path" properly set in the "/chosen" node. This is the same with the QEMU 'sifive_u' machine. Hence the codes to fix up the "stdout-path" in OpenSBI is not necessary. Signed-off-by: Bin Meng Reviewed-by: Atish Patra

platform: sifive/fu540: Fix up DT for reserved memory

2020-03-18T04:30:30Z

This calls fdt_reserved_memory_fixup() helper in the platform's final_init() routine. Signed-off-by: Bin Meng Reviewed-by: Atish Patra

lib: utils: Move PLIC DT fix up codes to fdt_helper.c

2020-03-18T04:10:14Z

Now that we have a dedicated fdt_helper.c file for DT releated helper routines, move plic_fdt_fixup() codes from plic.c to fdt_helper.c and rename it to fdt_plic_fixup() at the same time, to keep name consistency in the same file. Signed-off-by: Bin Meng Reviewed-by: Atish Patra

platform: Clean up include header files

2020-03-18T04:01:39Z

Adjust the order of include header files in alphabetical order in platform codes. Also remove unnecessary inclusions. Signed-off-by: Bin Meng Reviewed-by: Atish Patra

platform: Use one unified per-HART stack size macro for all platforms

2020-03-14T03:44:00Z

As of today all platforms use 8KB of per-HART stack hence there is no need for each platform to define its own macro or use the magic number. Create one macro for all platforms. Platform still can use its own version if needed. Signed-off-by: Bin Meng Reviewed-by: Anup Patel