diff options
| author | Anup Patel <anup.patel@wdc.com> | 2020-04-29 14:21:52 +0530 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2020-05-01 09:45:53 +0530 |
| commit | f0eb503db4c14176f165ca067798b079571decda (patch) | |
| tree | 4ed68de756595a488221790abc6a4cc4f150d2b4 /lib/utils/fdt | |
| parent | 44dd7be3b2b3b821912e32a1021706a2edb9d44b (diff) | |
lib: utils: Add fdt_parse_plic_node() function
We add fdt_parse_plic_node() function which will allow us to parse
a particular DT node as PLIC node. This will be useful in parsing
the DT node which we have found by matching compatible string.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Diffstat (limited to 'lib/utils/fdt')
| -rw-r--r-- | lib/utils/fdt/fdt_helper.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/lib/utils/fdt/fdt_helper.c b/lib/utils/fdt/fdt_helper.c index 2d79f75..ee733e7 100644 --- a/lib/utils/fdt/fdt_helper.c +++ b/lib/utils/fdt/fdt_helper.c @@ -259,16 +259,15 @@ int fdt_parse_uart8250(void *fdt, struct platform_uart_data *uart, return fdt_parse_uart8250_node(fdt, nodeoffset, uart); } -int fdt_parse_plic(void *fdt, struct platform_plic_data *plic, - const char *compatible) +int fdt_parse_plic_node(void *fdt, int nodeoffset, + struct platform_plic_data *plic) { - int nodeoffset, len, rc; + int len, rc; const fdt32_t *val; unsigned long reg_addr, reg_size; - nodeoffset = fdt_node_offset_by_compatible(fdt, -1, compatible); - if (nodeoffset < 0) - return nodeoffset; + if (nodeoffset < 0 || !plic || !fdt) + return SBI_ENODEV; rc = fdt_get_node_addr_size(fdt, nodeoffset, ®_addr, ®_size); if (rc < 0 || !reg_addr || !reg_size) @@ -282,6 +281,21 @@ int fdt_parse_plic(void *fdt, struct platform_plic_data *plic, return 0; } +int fdt_parse_plic(void *fdt, struct platform_plic_data *plic, + const char *compatible) +{ + int nodeoffset; + + if (!compatible || !plic || !fdt) + return SBI_ENODEV; + + nodeoffset = fdt_node_offset_by_compatible(fdt, -1, compatible); + if (nodeoffset < 0) + return nodeoffset; + + return fdt_parse_plic_node(fdt, nodeoffset, plic); +} + int fdt_parse_compat_addr(void *fdt, unsigned long *addr, const char *compatible) { |