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

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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 <anup.patel@wdc.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
This commit is contained in:
Anup Patel
2021-06-15 11:19:40 +05:30
committed by Anup Patel
parent 811da5c541
commit 7127aaaaf7
2 changed files with 45 additions and 4 deletions
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17
include/sbi_utils/fdt/fdt_fixup.h
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@@ -21,6 +21,18 @@
*/
void fdt_cpu_fixup(void *fdt);
/**
* Fix up the IMSIC nodes in the device tree
*
* This routine disables IMSIC 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_imsic_fixup(void *fdt);
/**
* Fix up the PLIC node in the device tree
*
@@ -64,8 +76,9 @@ 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 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, 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()
*