[PATCH 13/13] MIPS: lantiq: Remove the arch/mips/lantiq/xway/reset.c implementation

[Hauke Mehrtens]

From: Martin Blumenstingl <martin.blumenstingl at googlemail.com>

The RCU register are now access through separates drivers. remove the
last peaces of the old implementation.

Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 arch/mips/lantiq/Kconfig       |   1 +
 arch/mips/lantiq/xway/Makefile |   2 +-
 arch/mips/lantiq/xway/reset.c  | 157 -----------------------------------------
 3 files changed, 2 insertions(+), 158 deletions(-)
 delete mode 100644 arch/mips/lantiq/xway/reset.c

diff --git a/arch/mips/lantiq/Kconfig b/arch/mips/lantiq/Kconfig
index f5db4a426568..35bc69b78268 100644
--- a/arch/mips/lantiq/Kconfig
+++ b/arch/mips/lantiq/Kconfig
@@ -18,6 +18,7 @@ config SOC_XWAY
 	select SOC_TYPE_XWAY
 	select HW_HAS_PCI
 	select MFD_SYSCON
+	select MFD_CORE
 
 config SOC_FALCON
 	bool "FALCON"
diff --git a/arch/mips/lantiq/xway/Makefile b/arch/mips/lantiq/xway/Makefile
index 6daf3149e7ca..fbb0747c70b7 100644
--- a/arch/mips/lantiq/xway/Makefile
+++ b/arch/mips/lantiq/xway/Makefile
@@ -1,3 +1,3 @@
-obj-y := prom.o sysctrl.o clk.o reset.o dma.o gptu.o dcdc.o
+obj-y := prom.o sysctrl.o clk.o dma.o gptu.o dcdc.o
 
 obj-y += vmmc.o
diff --git a/arch/mips/lantiq/xway/reset.c b/arch/mips/lantiq/xway/reset.c
deleted file mode 100644
index 5aec1f54275b..000000000000
--- a/arch/mips/lantiq/xway/reset.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License version 2 as published
- *  by the Free Software Foundation.
- *
- *  Copyright (C) 2010 John Crispin <john at phrozen.org>
- *  Copyright (C) 2013-2015 Lantiq Beteiligungs-GmbH & Co.KG
- */
-
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/ioport.h>
-#include <linux/pm.h>
-#include <linux/export.h>
-#include <linux/delay.h>
-#include <linux/of_address.h>
-#include <linux/of_platform.h>
-#include <linux/reset-controller.h>
-
-#include <asm/reboot.h>
-
-#include <lantiq_soc.h>
-
-#include "../prom.h"
-
-/* reset request register */
-#define RCU_RST_REQ		0x0010
-/* reset status register */
-#define RCU_RST_STAT		0x0014
-
-/* xbar BE flag */
-#define RCU_AHB_ENDIAN          0x004C
-#define RCU_VR9_BE_AHB1S        0x00000008
-
-/* reboot bit */
-#define RCU_RD_GPHY0_XRX200	BIT(31)
-#define RCU_RD_SRST		BIT(30)
-#define RCU_RD_GPHY1_XRX200	BIT(29)
-
-/* reset cause */
-#define RCU_STAT_SHIFT		26
-/* boot selection */
-#define RCU_BOOT_SEL(x)		((x >> 18) & 0x7)
-#define RCU_BOOT_SEL_XRX200(x)	(((x >> 17) & 0xf) | ((x >> 8) & 0x10))
-
-/* dwc2 USB configuration registers */
-#define RCU_USB1CFG		0x0018
-#define RCU_USB2CFG		0x0034
-
-/* USB DMA endianness bits */
-#define RCU_USBCFG_HDSEL_BIT	BIT(11)
-#define RCU_USBCFG_HOST_END_BIT	BIT(10)
-#define RCU_USBCFG_SLV_END_BIT	BIT(9)
-
-/* USB reset bits */
-#define RCU_USBRESET		0x0010
-
-#define USBRESET_BIT		BIT(4)
-
-#define RCU_USBRESET2		0x0048
-
-#define USB1RESET_BIT		BIT(4)
-#define USB2RESET_BIT		BIT(5)
-
-#define RCU_CFG1A		0x0038
-#define RCU_CFG1B		0x003C
-
-/* USB PMU devices */
-#define PMU_AHBM		BIT(15)
-#define PMU_USB0		BIT(6)
-#define PMU_USB1		BIT(27)
-
-/* USB PHY PMU devices */
-#define PMU_USB0_P		BIT(0)
-#define PMU_USB1_P		BIT(26)
-
-/* remapped base addr of the reset control unit */
-static void __iomem *ltq_rcu_membase;
-static struct device_node *ltq_rcu_np;
-static DEFINE_SPINLOCK(ltq_rcu_lock);
-
-static void ltq_rcu_w32(uint32_t val, uint32_t reg_off)
-{
-	ltq_w32(val, ltq_rcu_membase + reg_off);
-}
-
-static uint32_t ltq_rcu_r32(uint32_t reg_off)
-{
-	return ltq_r32(ltq_rcu_membase + reg_off);
-}
-
-static void ltq_rcu_w32_mask(uint32_t clr, uint32_t set, uint32_t reg_off)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&ltq_rcu_lock, flags);
-	ltq_rcu_w32((ltq_rcu_r32(reg_off) & ~(clr)) | (set), reg_off);
-	spin_unlock_irqrestore(&ltq_rcu_lock, flags);
-}
-
-static void ltq_machine_restart(char *command)
-{
-	u32 val = ltq_rcu_r32(RCU_RST_REQ);
-
-	if (of_device_is_compatible(ltq_rcu_np, "lantiq,rcu-xrx200"))
-		val |= RCU_RD_GPHY1_XRX200 | RCU_RD_GPHY0_XRX200;
-
-	val |= RCU_RD_SRST;
-
-	local_irq_disable();
-	ltq_rcu_w32(val, RCU_RST_REQ);
-	unreachable();
-}
-
-static void ltq_machine_halt(void)
-{
-	local_irq_disable();
-	unreachable();
-}
-
-static void ltq_machine_power_off(void)
-{
-	local_irq_disable();
-	unreachable();
-}
-
-static int __init mips_reboot_setup(void)
-{
-	struct resource res;
-
-	ltq_rcu_np = of_find_compatible_node(NULL, NULL, "lantiq,rcu-xway");
-	if (!ltq_rcu_np)
-		ltq_rcu_np = of_find_compatible_node(NULL, NULL,
-							"lantiq,rcu-xrx200");
-
-	/* check if all the reset register range is available */
-	if (!ltq_rcu_np)
-		panic("Failed to load reset resources from devicetree");
-
-	if (of_address_to_resource(ltq_rcu_np, 0, &res))
-		panic("Failed to get rcu memory range");
-
-	if (!request_mem_region(res.start, resource_size(&res), res.name))
-		pr_err("Failed to request rcu memory");
-
-	ltq_rcu_membase = ioremap_nocache(res.start, resource_size(&res));
-	if (!ltq_rcu_membase)
-		panic("Failed to remap core memory");
-
-	_machine_restart = ltq_machine_restart;
-	_machine_halt = ltq_machine_halt;
-	pm_power_off = ltq_machine_power_off;
-
-	return 0;
-}
-
-arch_initcall(mips_reboot_setup);
-- 
2.11.0