ARM: uniphier: move MMC code to a separate file

Currently, arch/arm/mach-uniphier/boot-mode/boot-mode.c is messed up
with unrelated code; there is no reason why the "mmcsetn" command
must be placed in this file.

Split out the MMC code into arch/arm/mach-uniphier/mmc-first-dev.c.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

arch/arm/mach-uniphier/Makefile

@@ -19,6 +19,7 @@ obj-y += reset.o
 
 obj-$(CONFIG_MICRO_SUPPORT_CARD) += sbc/ micro-support-card.o
 obj-y += pinctrl-glue.o
+obj-$(CONFIG_MMC) += mmc-first-dev.o
 
 endif
 

arch/arm/mach-uniphier/boot-mode/boot-mode.c

@@ -100,41 +100,3 @@ u32 spl_boot_mode(const u32 boot_device)
 
 	return MMCSD_MODE_EMMCBOOT;
 }
-
-#if defined(CONFIG_DM_MMC) && !defined(CONFIG_SPL_BUILD)
-static int find_first_mmc_device(void)
-{
-	struct mmc *mmc;
-	int i;
-
-	for (i = 0; (mmc = find_mmc_device(i)); i++) {
-		if (!mmc_init(mmc) && IS_MMC(mmc))
-			return i;
-	}
-
-	return -ENODEV;
-}
-
-int mmc_get_env_dev(void)
-{
-	return find_first_mmc_device();
-}
-
-static int do_mmcsetn(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
-	int dev;
-
-	dev = find_first_mmc_device();
-	if (dev < 0)
-		return CMD_RET_FAILURE;
-
-	setenv_ulong("mmc_first_dev", dev);
-	return CMD_RET_SUCCESS;
-}
-
-U_BOOT_CMD(
-	   mmcsetn,	1,	1,	do_mmcsetn,
-	"Set the first MMC (not SD) dev number to \"mmc_first_dev\" environment",
-	""
-);
-#endif

arch/arm/mach-uniphier/mmc-first-dev.c

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2016 Socionext Inc.
+ *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <mmc.h>
+#include <linux/errno.h>
+
+static int find_first_mmc_device(void)
+{
+	struct mmc *mmc;
+	int i;
+
+	for (i = 0; (mmc = find_mmc_device(i)); i++) {
+		if (!mmc_init(mmc) && IS_MMC(mmc))
+			return i;
+	}
+
+	return -ENODEV;
+}
+
+int mmc_get_env_dev(void)
+{
+	return find_first_mmc_device();
+}
+
+static int do_mmcsetn(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int dev;
+
+	dev = find_first_mmc_device();
+	if (dev < 0)
+		return CMD_RET_FAILURE;
+
+	setenv_ulong("mmc_first_dev", dev);
+	return CMD_RET_SUCCESS;
+}
+
+U_BOOT_CMD(
+	   mmcsetn,	1,	1,	do_mmcsetn,
+	"Set the first MMC (not SD) dev number to \"mmc_first_dev\" environment",
+	""
+);