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lib: utils/regmap: Mark syscon region as shared read-write

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The syscon region used by OpenSBI should be marked as a shared
read-write region between M-mode and SU-mode.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
This commit is contained in:
Anup Patel
2023-09-07 17:19:47 +05:30
committed by Anup Patel
parent e8bc1621c6
commit b7e9d34edf
1 changed files with 7 additions and 0 deletions
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7
lib/utils/regmap/fdt_regmap_syscon.c
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@@ -8,6 +8,7 @@
*/ */
#include <libfdt.h> #include <libfdt.h>
#include <sbi/riscv_asm.h>
#include <sbi/riscv_io.h> #include <sbi/riscv_io.h>
#include <sbi/sbi_byteorder.h> #include <sbi/sbi_byteorder.h>
#include <sbi/sbi_error.h> #include <sbi/sbi_error.h>
@@ -240,6 +241,12 @@ static int regmap_syscon_init(void *fdt, int nodeoff, u32 phandle,
goto fail_free_syscon; goto fail_free_syscon;
} }
rc = sbi_domain_root_add_memrange(addr, size, PAGE_SIZE,
(SBI_DOMAIN_MEMREGION_MMIO |
SBI_DOMAIN_MEMREGION_SHARED_SURW_MRW));
if (rc)
goto fail_free_syscon;
rc = regmap_add(&srm->rmap); rc = regmap_add(&srm->rmap);
if (rc) if (rc)
goto fail_free_syscon; goto fail_free_syscon;