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| author | Simon Glass <sjg@chromium.org> | 2013-03-19 04:58:51 +0000 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2013-03-19 08:45:36 -0700 |
| commit | 4397a2a80baefadc7454c70282c14d2af16ffe30 (patch) | |
| tree | c7c7382e91c3cc808ce9f381ed73b4f765469f1f /lib | |
| parent | 0ce033d2582129243aca10d3072a221386bbba44 (diff) | |
| download | u-boot-4397a2a80baefadc7454c70282c14d2af16ffe30.zip u-boot-4397a2a80baefadc7454c70282c14d2af16ffe30.tar.gz u-boot-4397a2a80baefadc7454c70282c14d2af16ffe30.tar.bz2 | |
fdt: Add fdtdec_get_addr_size() to read reg properties
It is common to have a "reg = <address size>" property in the FDT.
Add a function to handle this, similar to the existing
fdtdec_get_addr();
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/fdtdec.c | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/lib/fdtdec.c b/lib/fdtdec.c index 43f29f5..cffba94 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -68,25 +68,40 @@ const char *fdtdec_get_compatible(enum fdt_compat_id id) return compat_names[id]; } -fdt_addr_t fdtdec_get_addr(const void *blob, int node, - const char *prop_name) +fdt_addr_t fdtdec_get_addr_size(const void *blob, int node, + const char *prop_name, fdt_size_t *sizep) { const fdt_addr_t *cell; int len; debug("%s: %s: ", __func__, prop_name); cell = fdt_getprop(blob, node, prop_name, &len); - if (cell && (len == sizeof(fdt_addr_t) || - len == sizeof(fdt_addr_t) * 2)) { + if (cell && ((!sizep && len == sizeof(fdt_addr_t)) || + len == sizeof(fdt_addr_t) * 2)) { fdt_addr_t addr = fdt_addr_to_cpu(*cell); - - debug("%p\n", (void *)addr); + if (sizep) { + const fdt_size_t *size; + + size = (fdt_size_t *)((char *)cell + + sizeof(fdt_addr_t)); + *sizep = fdt_size_to_cpu(*size); + debug("addr=%p, size=%p\n", (void *)addr, + (void *)*sizep); + } else { + debug("%p\n", (void *)addr); + } return addr; } debug("(not found)\n"); return FDT_ADDR_T_NONE; } +fdt_addr_t fdtdec_get_addr(const void *blob, int node, + const char *prop_name) +{ + return fdtdec_get_addr_size(blob, node, prop_name, NULL); +} + s32 fdtdec_get_int(const void *blob, int node, const char *prop_name, s32 default_val) { |