fexc: add support for pio banks up to N

needed for A31 support. closes issue #9
Signed-off-by: Alejandro Mery <amery@geeks.cl>

script.h

@@ -17,6 +17,8 @@
 #ifndef _SUNXI_TOOLS_SCRIPT_H
 #define _SUNXI_TOOLS_SCRIPT_H
 
+#define GPIO_BANK_MAX	13 /* N */
+
 /** head of the data tree */
 struct script {
 	struct list_entry sections;

script_bin.c

@@ -255,9 +255,10 @@ static int decompile_section(void *bin, size_t UNUSED(bin_size),
 				       filename, section->name, entry->name, words, 6);
 			} else if (gpio->port == 0xffff) {
 				; /* port:power */
-			} else if (gpio->port < 1 || gpio->port > 10) {
-				pr_err("%s: %s.%s: unknown GPIO port type %u\n",
-				       filename, section->name, entry->name, gpio->port);
+			} else if (gpio->port < 1 || gpio->port > GPIO_BANK_MAX) {
+				pr_err("%s: %s.%s: unknown GPIO port bank %c (%u)\n",
+				       filename, section->name, entry->name,
+				       'A'+gpio->port, gpio->port);
 				goto failure;
 			}
 			v[0] = gpio->mul_sel;

script_fex.c

@@ -261,7 +261,7 @@ int script_parse_fex(FILE *in, const char *filename, struct script *script)
 				/* GPIO */
 				p += 5;
 				if (p[0] == 'P' &&
-				    (p[1] < 'A' || p[1] > 'I'))
+				    (p[1] < 'A' || p[1] > ('A' + GPIO_BANK_MAX)))
 					;
 				else if (*p != 'P' &&
 					 memcmp(p, "power", 5) != 0)