Hi Suneel,
On Tue, 29 Oct 2019 at 14:08, Suneel Garapati suneelglinux@gmail.com wrote:
From: Suneel Garapati sgarapati@marvell.com
Add fdtdec_get_pci_bus_range to read bus-range property values.
Signed-off-by: Suneel Garapati sgarapati@marvell.com
include/fdtdec.h | 12 ++++++++++++ lib/fdtdec.c | 16 ++++++++++++++++ 2 files changed, 28 insertions(+)
diff --git a/include/fdtdec.h b/include/fdtdec.h index f1e58f9732..afbd22b25a 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -441,6 +441,18 @@ int fdtdec_get_pci_vendev(const void *blob, int node, int fdtdec_get_pci_bar32(struct udevice *dev, struct fdt_pci_addr *addr, u32 *bar);
+/**
- Look at the bus range property of a device node and return the pci bus
- range for this node.
- The property must hold one fdt_pci_addr with a length.
- @param blob FDT blob
- @param node node to examine
- @param res the resource structure to return the bus range
@return
- */
+int fdtdec_get_pci_bus_range(const void *blob, int node,
struct fdt_resource *res);/**
- Look up a 32-bit integer property in a node and return it. The property
- must have at least 4 bytes of data. The value of the first cell is
diff --git a/lib/fdtdec.c b/lib/fdtdec.c index 17736ce665..fb61eda1fd 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -237,6 +237,22 @@ int fdtdec_get_pci_bar32(struct udevice *dev, struct fdt_pci_addr *addr,
return 0;}
+int fdtdec_get_pci_bus_range(const void *blob, int node,
struct fdt_resource *res)
This should have a livetree version too I think and a test.
+{
const u32 *values;int len;values = fdt_getprop(blob, node, "bus-range", &len);if (!values || len < sizeof(*values) * 2)return -EINVAL;res->start = be32_to_cpup(values++);
I think these should use fdt32_ld()
res->end = be32_to_cpup(values);return 0;+} #endif
uint64_t fdtdec_get_uint64(const void *blob, int node, const char *prop_name,
2.23.0
Regards, Simon