db410c: use the device tree parsed by the lk loader.

We dont need to keep copies of the properties that we are going to
fixup since we will be using the dtb provided by the firmware.

Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>

1 files changed, 40 insertions, 28 deletions

diff --git a/board/qualcomm/dragonboard410c/dragonboard410c.c b/board/qualcomm/dragonboard410c/dragonboard410c.c
index b9bf55ba31..9a600952a6 100644
--- a/board/qualcomm/dragonboard410c/dragonboard410c.c
+++ b/board/qualcomm/dragonboard410c/dragonboard410c.c
@@ -15,14 +15,22 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 /* pointer to the device tree ammended by the firmware */
-extern const void *fw_dtb;
+extern void *fw_dtb;
 
-static char wlan_mac[ARP_HLEN];
-static char bt_mac[ARP_HLEN];
+void *board_fdt_blob_setup(void)
+{
+	if (fdt_magic(fw_dtb) != FDT_MAGIC) {
+		printf("Firmware provided invalid dtb!\n");
+		return NULL;
+	}
+
+	return fw_dtb;
+}
 
 int dram_init(void)
 {
 	gd->ram_size = PHYS_SDRAM_1_SIZE;
+
 	return 0;
 }
 
@@ -138,36 +146,40 @@ int misc_init_r(void)
 
 int board_init(void)
 {
-	int offset, len;
-	const char *mac;
-
-	/* take a copy of the firmware information (the user could unknownly
-	   overwrite that DDR via tftp or other means)  */
-
-	offset = fdt_node_offset_by_compatible(fw_dtb, -1, "qcom,wcnss-wlan");
-	if (offset >= 0) {
-		mac = fdt_getprop(fw_dtb, offset, "local-mac-address", &len);
-		if (mac)
-			memcpy(wlan_mac, mac, ARP_HLEN);
-	}
-
-	offset = fdt_node_offset_by_compatible(fw_dtb, -1, "qcom,wcnss-bt");
-	if (offset >= 0) {
-		mac = fdt_getprop(fw_dtb, offset, "local-bd-address", &len);
-		if (mac)
-			memcpy(bt_mac, mac, ARP_HLEN);
-	}
-
 	return 0;
 }
 
 int ft_board_setup(void *blob, bd_t *bd)
 {
-	do_fixup_by_compat(blob, "qcom,wcnss-wlan", "local-mac-address",
-			   wlan_mac, ARP_HLEN, 1);
-
-	do_fixup_by_compat(blob, "qcom,wcnss-bt", "local-bd-address",
-			   bt_mac, ARP_HLEN, 1);
+	int offset, len, i;
+	const char *mac;
+	struct {
+		const char *compatible;
+		const char *property;
+	} fix[] = {
+		[0] = {
+			/* update the kernel's dtb with wlan mac */
+			.compatible = "qcom,wcnss-wlan",
+			.property = "local-mac-address",
+		},
+		[1] = {
+			/* update the kernel's dtb with bt mac */
+			.compatible = "qcom,wcnss-bt",
+			.property = "local-bd-address",
+		},
+	};
+
+	for (i = 0; i < sizeof(fix) / sizeof(fix[0]); i++) {
+		offset = fdt_node_offset_by_compatible(gd->fdt_blob, -1,
+						       fix[i].compatible);
+		if (offset < 0)
+			continue;
+
+		mac = fdt_getprop(gd->fdt_blob, offset, fix[i].property, &len);
+		if (mac)
+			do_fixup_by_compat(blob, fix[i].compatible,
+					   fix[i].property, mac, ARP_HLEN, 1);
+	}
 
 	return 0;
 }