net: dsa: vsc73xx: fix possible subblocks range of CAPT block

CAPT block (CPU Capture Buffer) have 7 sublocks: 0-3, 4, 6, 7.
Function 'vsc73xx_is_addr_valid' allows to use only block 0 at this
moment.

This patch fix it.

Fixes: 05bd97fc ("net: dsa: Add Vitesse VSC73xx DSA router driver")
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20240903203340.1518789-1-paweldembicki@gmail.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>

drivers/net/dsa/vitesse-vsc73xx-core.c

@@ -36,7 +36,7 @@
 #define VSC73XX_BLOCK_ANALYZER	0x2 /* Only subblock 0 */
 #define VSC73XX_BLOCK_MII	0x3 /* Subblocks 0 and 1 */
 #define VSC73XX_BLOCK_MEMINIT	0x3 /* Only subblock 2 */
-#define VSC73XX_BLOCK_CAPTURE	0x4 /* Only subblock 2 */
+#define VSC73XX_BLOCK_CAPTURE	0x4 /* Subblocks 0-4, 6, 7 */
 #define VSC73XX_BLOCK_ARBITER	0x5 /* Only subblock 0 */
 #define VSC73XX_BLOCK_SYSTEM	0x7 /* Only subblock 0 */
 
@@ -410,13 +410,19 @@ int vsc73xx_is_addr_valid(u8 block, u8 subblock)
 		break;
 
 	case VSC73XX_BLOCK_MII:
-	case VSC73XX_BLOCK_CAPTURE:
 	case VSC73XX_BLOCK_ARBITER:
 		switch (subblock) {
 		case 0 ... 1:
 			return 1;
 		}
 		break;
+	case VSC73XX_BLOCK_CAPTURE:
+		switch (subblock) {
+		case 0 ... 4:
+		case 6 ... 7:
+			return 1;
+		}
+		break;
 	}
 
 	return 0;