ARM: ux500: Purge UIB framework when booting with ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/mach-ux500/Makefile

@@ -8,7 +8,6 @@ obj-$(CONFIG_CACHE_L2X0)	+= cache-l2x0.o
 obj-$(CONFIG_UX500_SOC_DB8500)	+= cpu-db8500.o devices-db8500.o
 obj-$(CONFIG_MACH_MOP500)	+= board-mop500.o board-mop500-sdi.o \
 				board-mop500-regulators.o \
-				board-mop500-uib.o \
 				board-mop500-pins.o \
 				board-mop500-audio.o
 obj-$(CONFIG_SMP)		+= platsmp.o headsmp.o

arch/arm/mach-ux500/board-mop500-uib.c

-/*
- * Copyright (C) ST-Ericsson SA 2010
- *
- * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
- * License terms: GNU General Public License (GPL), version 2
- */
-
-#define pr_fmt(fmt)	"mop500-uib: " fmt
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/i2c.h>
-
-#include "board-mop500.h"
-#include "id.h"
-
-enum mop500_uib {
-};
-
-struct uib {
-	const char *name;
-	const char *option;
-	void (*init)(void);
-};
-
-static struct uib __initdata mop500_uibs[] = {
-};
-
-static struct uib *mop500_uib;
-
-static int __init mop500_uib_setup(char *str)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(mop500_uibs); i++) {
-		struct uib *uib = &mop500_uibs[i];
-
-		if (!strcmp(str, uib->option)) {
-			mop500_uib = uib;
-			break;
-		}
-	}
-
-	if (i == ARRAY_SIZE(mop500_uibs))
-		pr_err("invalid uib= option (%s)\n", str);
-
-	return 1;
-}
-__setup("uib=", mop500_uib_setup);
-
-/*
- * The UIBs are detected after the I2C host controllers are registered, so
- * i2c_register_board_info() can't be used.
- */
-void mop500_uib_i2c_add(int busnum, struct i2c_board_info *info,
-		unsigned n)
-{
-	struct i2c_adapter *adap;
-	struct i2c_client *client;
-	int i;
-
-	adap = i2c_get_adapter(busnum);
-	if (!adap) {
-		pr_err("failed to get adapter i2c%d\n", busnum);
-		return;
-	}
-
-	for (i = 0; i < n; i++) {
-		client = i2c_new_device(adap, &info[i]);
-		if (!client)
-			pr_err("failed to register %s to i2c%d\n",
-					info[i].type, busnum);
-	}
-
-	i2c_put_adapter(adap);
-}
-
-static void __init __mop500_uib_init(struct uib *uib, const char *why)
-{
-	pr_info("%s (%s)\n", uib->name, why);
-	uib->init();
-}
-
-int __init mop500_uib_init(void)
-{
-	struct uib *uib = mop500_uib;
-
-	if (!cpu_is_u8500_family())
-		return -ENODEV;
-
-	if (uib) {
-		__mop500_uib_init(uib, "from uib= boot argument");
-		return 0;
-	}
-
-	return 0;
-}

arch/arm/mach-ux500/board-mop500.c

@@ -105,8 +105,8 @@ MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
 	/* we re-use nomadik timer here */
 	.init_time	= ux500_timer_init,
 	.init_machine	= mop500_init_machine,
-	.init_late	= ux500_init_late,
 	.restart        = ux500_restart,
+	.init_late	= NULL,
 MACHINE_END
 
 MACHINE_START(U8520, "ST-Ericsson U8520 Platform HREFP520")
@@ -115,8 +115,8 @@ MACHINE_START(U8520, "ST-Ericsson U8520 Platform HREFP520")
 	.init_irq	= ux500_init_irq,
 	.init_time	= ux500_timer_init,
 	.init_machine	= mop500_init_machine,
-	.init_late	= ux500_init_late,
 	.restart        = ux500_restart,
+	.init_late	= NULL,
 MACHINE_END
 
 MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
@@ -126,8 +126,8 @@ MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
 	.init_irq	= ux500_init_irq,
 	.init_time	= ux500_timer_init,
 	.init_machine	= hrefv60_init_machine,
-	.init_late	= ux500_init_late,
 	.restart        = ux500_restart,
+	.init_late	= NULL,
 MACHINE_END
 
 MACHINE_START(SNOWBALL, "Calao Systems Snowball platform")
@@ -138,6 +138,6 @@ MACHINE_START(SNOWBALL, "Calao Systems Snowball platform")
 	/* we re-use nomadik timer here */
 	.init_time	= ux500_timer_init,
 	.init_machine	= snowball_init_machine,
-	.init_late	= NULL,
 	.restart        = ux500_restart,
+	.init_late	= NULL,
 MACHINE_END

arch/arm/mach-ux500/board-mop500.h

@@ -93,7 +93,4 @@ void __init mop500_pinmaps_init(void);
 void __init snowball_pinmaps_init(void);
 void __init hrefv60_pinmaps_init(void);
 
-int __init mop500_uib_init(void);
-void mop500_uib_i2c_add(int busnum, struct i2c_board_info *info,
-		unsigned n);
 #endif

arch/arm/mach-ux500/cpu.c

@@ -104,11 +104,6 @@ void __init ux500_init_irq(void)
 	}
 }
 
-void __init ux500_init_late(void)
-{
-	mop500_uib_init();
-}
-
 static const char * __init ux500_get_machine(void)
 {
 	return kasprintf(GFP_KERNEL, "DB%4x", dbx500_partnumber());

arch/arm/mach-ux500/setup.h

@@ -24,7 +24,6 @@ extern void __init u8500_map_io(void);
 extern struct device * __init u8500_init_devices(void);
 
 extern void __init ux500_init_irq(void);
-extern void __init ux500_init_late(void);
 
 extern struct device *ux500_soc_device_init(const char *soc_id);