opensbi.git/lib/utils/fdt/fdt_fixup.c, branch v1.2

lib: utils: Add fdt_fixup_node() helper function

2022-12-05T12:24:45Z

Add a helper function fdt_fixup_node() based on the compatible string. This will avoid code duplication for every new node fixup being added. Signed-off-by: Lad Prabhakar Reviewed-by: Bin Meng Reviewed-by: Xiang W Reviewed-by: Anup Patel

lib: utils: check if CPU node is enabled

2022-05-14T04:46:50Z

Ignore CPU nodes in FDT that are not enabled. Signed-off-by: Jan Remes Reviewed-by: Anup Patel

lib: utils: Disable appropriate APLIC DT nodes in fdt_fixups()

2022-02-15T15:09:15Z

We should disable APLIC DT nodes in fdt_fixups() which are not accessible to the next booting stage based on currently assigned domain. Signed-off-by: Anup Patel Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: utils: Disable appropriate IMSIC DT nodes in fdt_fixups()

2022-02-15T15:07:27Z

We should disable IMSIC DT nodes in fdt_fixups() which are not accessible to the next booting stage based on currently assigned domain. Signed-off-by: Anup Patel Signed-off-by: Anup Patel Reviewed-by: Atish Patra

utils: fdt: Add fdt helper functions to parse PMU DT nodes

2021-07-11T04:57:57Z

The PMU DT node bindings are defined in docs/pmu_support.md Add few fdt helper functions to parse the DT node and update the event-counter mapping tables. Reviewed-by: Anup Patel Signed-off-by: Atish Patra

lib/utils: Support fixing up the official DT bindings of PLIC

2021-04-01T05:01:11Z

Current fdt_plic_fixup() only does necessary fix-up against the legacy "riscv,plic0" node. The upstream Linux kernel defines its official DT bindings which uses "sifive,plic-1.0.0" as the compatible string and we should check that first, and if not present fall back to legacy. Signed-off-by: Bin Meng Reviewed-by: Anup Patel

lib/utils: Drop the 'compat' parameter of fdt_plic_fixup()

2021-04-01T04:57:28Z

At present fdt_plic_fixup() accepts a 'compat' parameter for PLIC compatible string. In preparation to support the new DT bindings, drop this and use "riscv,plic0" directly in fdt_plic_fixup(). Signed-off-by: Bin Meng Reviewed-by: Anup Patel

lib: utils: Update fdt_cpu_fixup() to use current domain

2020-10-20T08:34:51Z

The fdt_cpu_fixup() should disable a HART in DT if the HART is not assigned to the current HART domain. This patch updates fdt_cpu_fixup() accordingly. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: utils: Update fdt_reserved_memory_fixup() to use current domain

2020-10-20T08:34:43Z

Now that each HART is mapped to a domain having a set of memory regions, we update fdt_reserved_memory_fixup() to use domain memory regions for adding reserved memory nodes in device tree. We also change reserved memory node name prefix from "mmode_pmp" to "mmode_resv" because domain memory regions can impact other hardware configurations (such as IOPMP, etc) along with PMP. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: utils: Improve fdt_cpu_fixup() implementation

2020-09-16T03:35:27Z

The fdt_cpu_fixup() should work fine even if HARTs without MMU are not marked invalid by platform support code. In future, we plan to treat HARTs without MMU as valid in the generic platform support so that we can hold these HARTs in HSM STOPPED state. Signed-off-by: Anup Patel Reviewed-by: Atish Patra