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| author | Anup Patel <apatel@ventanamicro.com> | 2021-06-15 09:07:59 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2022-02-15 18:09:15 +0300 |
| commit | 8e2ef4f7af5affebc8464dd9c4b98501df14e23e (patch) | |
| tree | 7821f559de010fca95c59cb5d84740e6f549ba23 | |
| parent | 34612193af92f29446a3d59bc4f983c9cfe4b989 (diff) | |
| download | opensbi-8e2ef4f7af5affebc8464dd9c4b98501df14e23e.tar.xz | |
lib: utils: Disable appropriate APLIC DT nodes in fdt_fixups()
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 <anup.patel@wdc.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
| -rw-r--r-- | include/sbi_utils/fdt/fdt_fixup.h | 18 | ||||
| -rw-r--r-- | lib/utils/fdt/fdt_fixup.c | 11 |
2 files changed, 26 insertions, 3 deletions
diff --git a/include/sbi_utils/fdt/fdt_fixup.h b/include/sbi_utils/fdt/fdt_fixup.h index 77575bb..fb076ba 100644 --- a/include/sbi_utils/fdt/fdt_fixup.h +++ b/include/sbi_utils/fdt/fdt_fixup.h @@ -22,6 +22,18 @@ void fdt_cpu_fixup(void *fdt); /** + * Fix up the APLIC nodes in the device tree + * + * This routine disables APLIC nodes which are not accessible to the next + * booting stage based on currently assigned domain. + * + * It is recommended that platform codes call this helper in their final_init() + * + * @param fdt: device tree blob + */ +void fdt_aplic_fixup(void *fdt); + +/** * Fix up the IMSIC nodes in the device tree * * This routine disables IMSIC nodes which are not accessible to the next @@ -76,9 +88,9 @@ int fdt_reserved_memory_nomap_fixup(void *fdt); * General device tree fix-up * * This routine do all required device tree fix-ups for a typical platform. - * It fixes up the PLIC node, IMSIC nodes, and the reserved memory node in - * the device tree by calling the corresponding helper routines to accomplish - * the task. + * It fixes up the PLIC node, IMSIC nodes, APLIC nodes, and the reserved + * memory node in the device tree by calling the corresponding helper + * routines to accomplish the task. * * It is recommended that platform codes call this helper in their final_init() * diff --git a/lib/utils/fdt/fdt_fixup.c b/lib/utils/fdt/fdt_fixup.c index c2460b8..a80bd82 100644 --- a/lib/utils/fdt/fdt_fixup.c +++ b/lib/utils/fdt/fdt_fixup.c @@ -71,6 +71,15 @@ static void fdt_domain_based_fixup_one(void *fdt, int nodeoff) } } +void fdt_aplic_fixup(void *fdt) +{ + int noff = 0; + + while ((noff = fdt_node_offset_by_compatible(fdt, noff, + "riscv,aplic")) >= 0) + fdt_domain_based_fixup_one(fdt, noff); +} + void fdt_imsic_fixup(void *fdt) { int noff = 0; @@ -289,6 +298,8 @@ int fdt_reserved_memory_nomap_fixup(void *fdt) void fdt_fixups(void *fdt) { + fdt_aplic_fixup(fdt); + fdt_imsic_fixup(fdt); fdt_plic_fixup(fdt); |