[PATCH] arm64: zynqmp: Add support for SVD devices

Michal Simek michal.simek at xilinx.com
Wed May 19 10:44:57 CEST 2021


SVD (Software Virtual Devices) are using different name which can't be
handled via zynqmp_devices structure. That's why introduce
zynqmp_detect_svd_name() which checks ID code for these devices and show
proper name for them.

Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

 board/xilinx/zynqmp/zynqmp.c | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
index d05f0b2e1202..6e353e3b0a57 100644
--- a/board/xilinx/zynqmp/zynqmp.c
+++ b/board/xilinx/zynqmp/zynqmp.c
@@ -185,6 +185,32 @@ static const struct {
 	},
 };
 
+static const struct {
+	u32 id;
+	char *name;
+} zynqmp_svd_devices[] = {
+	{
+		.id = 0x04714093,
+		.name = "xck24"
+	},
+	{
+		.id = 0x04724093,
+		.name = "xck26",
+	},
+};
+
+static char *zynqmp_detect_svd_name(u32 idcode)
+{
+	u32 i;
+
+	for (i = 0; i < ARRAY_SIZE(zynqmp_svd_devices); i++) {
+		if (zynqmp_svd_devices[i].id == (idcode & 0x0FFFFFFF))
+			return zynqmp_svd_devices[i].name;
+	}
+
+	return "unknown";
+}
+
 static char *zynqmp_get_silicon_idcode_name(void)
 {
 	u32 i;
@@ -219,7 +245,7 @@ static char *zynqmp_get_silicon_idcode_name(void)
 	}
 
 	if (i >= ARRAY_SIZE(zynqmp_devices))
-		return "unknown";
+		return zynqmp_detect_svd_name(idcode);
 
 	/* Add device prefix to the name */
 	ret = snprintf(name, ZYNQMP_VERSION_SIZE, "zu%d",
-- 
2.31.1



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