internal.c: Move sio register to own object

While super i/o is related to the internal programmer it
isn't actually _the_ internal programmer. Move register
logic to its own object consistent with other programmer
types.

Change-Id: I9a4c3e12bce5d22492c8d1b8f4a3f49d736dcf31
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/71577
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

Makefile

@@ -584,7 +584,7 @@ ifeq ($(ARCH), x86)
 ifeq ($(CONFIG_INTERNAL) $(CONFIG_INTERNAL_X86), yes yes)
 FEATURE_FLAGS += -D'CONFIG_INTERNAL=1'
 PROGRAMMER_OBJS += processor_enable.o chipset_enable.o board_enable.o cbtable.o \
-	internal.o it87spi.o sb600spi.o amd_imc.o wbsio_spi.o mcp6x_spi.o \
+	internal.o it87spi.o sb600spi.o superio.o amd_imc.o wbsio_spi.o mcp6x_spi.o \
 	ichspi.o dmi.o known_boards.o
 ACTIVE_PROGRAMMERS += internal
 endif

internal.c

@@ -34,34 +34,6 @@ bool force_boardmismatch = false;
 
 enum chipbustype internal_buses_supported = BUS_NONE;
 
-#if defined(__i386__) || defined(__x86_64__)
-void probe_superio(void)
-{
-	probe_superio_winbond();
-	/* ITE probe causes SMSC LPC47N217 to power off the serial UART.
-	 * Always probe for SMSC first, and if a SMSC Super I/O is detected
-	 * at a given I/O port, do _not_ probe that port with the ITE probe.
-	 * This means SMSC probing must be done before ITE probing.
-	 */
-	//probe_superio_smsc();
-	probe_superio_ite();
-}
-
-int superio_count = 0;
-#define SUPERIO_MAX_COUNT 3
-
-struct superio superios[SUPERIO_MAX_COUNT];
-
-int register_superio(struct superio s)
-{
-	if (superio_count == SUPERIO_MAX_COUNT)
-		return 1;
-	superios[superio_count++] = s;
-	return 0;
-}
-
-#endif
-
 static void internal_chip_writeb(const struct flashctx *flash, uint8_t val,
 				 chipaddr addr)
 {

meson.build

@@ -247,6 +247,7 @@ programmer = {
       'internal.c',
       'it87spi.c',
       'sb600spi.c',
+      'superio.c',
       'amd_imc.c',
       'wbsio_spi.c',
       'mcp6x_spi.c',

superio.c

@@ -0,0 +1,42 @@
+/*
+ * This file is part of the flashrom project.
+ *
+ * Copyright (C) 2009 Carl-Daniel Hailfinger
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include "programmer.h"
+
+int superio_count = 0;
+#define SUPERIO_MAX_COUNT 3
+
+struct superio superios[SUPERIO_MAX_COUNT];
+
+int register_superio(struct superio s)
+{
+	if (superio_count == SUPERIO_MAX_COUNT)
+		return 1;
+	superios[superio_count++] = s;
+	return 0;
+}
+
+void probe_superio(void)
+{
+	probe_superio_winbond();
+	/* ITE probe causes SMSC LPC47N217 to power off the serial UART.
+	 * Always probe for SMSC first, and if a SMSC Super I/O is detected
+	 * at a given I/O port, do _not_ probe that port with the ITE probe.
+	 * This means SMSC probing must be done before ITE probing.
+	 */
+	//probe_superio_smsc();
+	probe_superio_ite();
+}