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[U-Boot,v5,1/5] lib, fdt: Adding fdtdec_get_uint function

Message ID 1445088632-2680-1-git-send-email-clsee@altera.com
State Accepted
Delegated to: Marek Vasut
Headers show

Commit Message

Chin Liang See Oct. 17, 2015, 1:30 p.m. UTC 
Adding fdtdec_get_uint function which is the
unsigned version for fdtdec_get_int

Signed-off-by: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Dinh Nguyen <dinh.linux@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Vikas Manocha <vikas.manocha@st.com>
Cc: Jagannadh Teki <jteki@openedev.com>
Cc: Pavel Machek <pavel@denx.de>
Cc: Heiko Schocher <hs@denx.de>
---
Changes for v5
- shuffling the patches
- fixed the commit message
Changes for v4
- Drop idea on enabling fdt_support in SPL build
---
 include/fdtdec.h    | 13 +++++++++++++
 lib/fdtdec_common.c | 18 ++++++++++++++++++
 2 files changed, 31 insertions(+)

Comments

Marek Vasut Oct. 17, 2015, 2:14 p.m. UTC | #1 
On Saturday, October 17, 2015 at 03:30:32 PM, Chin Liang See wrote:
> Adding fdtdec_get_uint function which is the
> unsigned version for fdtdec_get_int
> 
> Signed-off-by: Chin Liang See <clsee@altera.com>
> Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
> Cc: Dinh Nguyen <dinh.linux@gmail.com>
> Cc: Marek Vasut <marex@denx.de>
> Cc: Stefan Roese <sr@denx.de>
> Cc: Vikas Manocha <vikas.manocha@st.com>
> Cc: Jagannadh Teki <jteki@openedev.com>
> Cc: Pavel Machek <pavel@denx.de>
> Cc: Heiko Schocher <hs@denx.de>

Acked-by: Marek Vasut <marex@denx.de>

Best regards,
Marek Vasut
diff mbox

Patch

diff --git a/include/fdtdec.h b/include/fdtdec.h
index 2de6dda..d51e643 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -490,6 +490,19 @@  s32 fdtdec_get_int(const void *blob, int node, const char *prop_name,
 		s32 default_val);
 
 /**
+ * Unsigned version of fdtdec_get_int. The property must have at least
+ * 4 bytes of data. The value of the first cell is returned.
+ *
+ * @param blob	FDT blob
+ * @param node	node to examine
+ * @param prop_name	name of property to find
+ * @param default_val	default value to return if the property is not found
+ * @return unsigned integer value, if found, or default_val if not
+ */
+unsigned int fdtdec_get_uint(const void *blob, int node, const char *prop_name,
+			unsigned int default_val);
+
+/**
  * Get a variable-sized number from a property
  *
  * This reads a number from one or more cells.
diff --git a/lib/fdtdec_common.c b/lib/fdtdec_common.c
index 757931a..63b704a 100644
--- a/lib/fdtdec_common.c
+++ b/lib/fdtdec_common.c
@@ -36,3 +36,21 @@  int fdtdec_get_int(const void *blob, int node, const char *prop_name,
 	debug("(not found)\n");
 	return default_val;
 }
+
+unsigned int fdtdec_get_uint(const void *blob, int node, const char *prop_name,
+			unsigned int default_val)
+{
+	const int *cell;
+	int len;
+
+	debug("%s: %s: ", __func__, prop_name);
+	cell = fdt_getprop(blob, node, prop_name, &len);
+	if (cell && len >= sizeof(unsigned int)) {
+		unsigned int val = fdt32_to_cpu(cell[0]);
+
+		debug("%#x (%d)\n", val, val);
+		return val;
+	}
+	debug("(not found)\n");
+	return default_val;
+}