diff options
Diffstat (limited to 'arch/mips/lantiq/xway')
| -rw-r--r-- | arch/mips/lantiq/xway/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/lantiq/xway/reset.c | 147 |
2 files changed, 1 insertions, 148 deletions
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 04cd9a7c04a3..000000000000 --- a/arch/mips/lantiq/xway/reset.c +++ /dev/null @@ -1,147 +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@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 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_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); |