Add IT87xx SPI as external flasher option

This is a fast way to test if a IT87xx board_enable() would work.

Corresponding to flashrom svn r557.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Tested-by: Harald Gutmann <harald.gutmann@gmx.net>
Acked-by: Harald Gutmann <harald.gutmann@gmx.net>
diff --git a/it87spi.c b/it87spi.c
index 2a7be85..d9f93e6 100644
--- a/it87spi.c
+++ b/it87spi.c
@@ -93,7 +93,7 @@
 	return flashport;
 }
 
-int it87xx_probe_spi_flash(const char *name)
+int it87spi_common_init(void)
 {
 	it8716f_flashport = find_ite_spi_flash_port(ITE_SUPERIO_PORT1);
 
@@ -106,6 +106,19 @@
 	return (!it8716f_flashport);
 }
 
+
+int it87spi_init(void)
+{
+	get_io_perms();
+
+	return it87spi_common_init();
+}
+
+int it87xx_probe_spi_flash(const char *name)
+{
+	return it87spi_common_init();
+}
+
 /*
  * The IT8716F only supports commands with length 1,2,4,5 bytes including
  * command byte and can not read more than 3 bytes from the device.
@@ -241,7 +254,7 @@
 	int i;
 	fast_spi = 0;
 
-	if (total_size > 512 * 1024) {
+	if ((programmer == PROGRAMMER_IT87SPI) || (total_size > 512 * 1024)) {
 		for (i = 0; i < total_size; i += 3) {
 			int toread = 3;
 			if (total_size - i < toread)
@@ -264,7 +277,7 @@
 	 * IT8716F only allows maximum of 512 kb SPI chip size for memory
 	 * mapped access.
 	 */
-	if (total_size > 512 * 1024) {
+	if ((programmer == PROGRAMMER_IT87SPI) || (total_size > 512 * 1024)) {
 		it8716f_spi_chip_write_1(flash, buf);
 	} else {
 		for (i = 0; i < total_size / 256; i++) {