Register Parallel/LPC/FWH programmers the same way SPI programmers are registered

All programmers are now calling programmer registration functions and
direct manipulations of buses_supported are not needed/possible anymore.

Note: Programmers without parallel/LPC/FWH chip support should not call
register_par_programmer().

Additional fixes:
Set max_rom_decode.parallel for drkaiser.
Remove abuse of programmer_map_flash_region in it85spi.
Annotate several FIXMEs in it85spi.

Corresponding to flashrom svn r1463.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Michael Karcher <flashrom@mkarcher.dialup.fu-berlin.de>
diff --git a/programmer.c b/programmer.c
index 5c1f963..5eabdaf 100644
--- a/programmer.c
+++ b/programmer.c
@@ -19,6 +19,20 @@
  */
 
 #include "flash.h"
+#include "programmer.h"
+
+static const struct par_programmer par_programmer_none = {
+		.chip_readb		= noop_chip_readb,
+		.chip_readw		= fallback_chip_readw,
+		.chip_readl		= fallback_chip_readl,
+		.chip_readn		= fallback_chip_readn,
+		.chip_writeb		= noop_chip_writeb,
+		.chip_writew		= fallback_chip_writew,
+		.chip_writel		= fallback_chip_writel,
+		.chip_writen		= fallback_chip_writen,
+};
+
+const struct par_programmer *par_programmer = &par_programmer_none;
 
 /* No-op shutdown() for programmers which don't need special handling */
 int noop_shutdown(void)
@@ -96,3 +110,9 @@
 		buf[i] = chip_readb(addr + i);
 	return;
 }
+
+void register_par_programmer(const struct par_programmer *pgm, const enum chipbustype buses)
+{
+	par_programmer = pgm;
+	buses_supported |= buses;
+}