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a6fc3b6981
The global utilities block controls power management, I/O device enabling, power-onreset(POR) configuration monitoring, alternate function selection for multiplexed signals,and clock control. This patch adds a driver to manage and access global utilities block. Initially only reading SVR and registering soc device are supported. Other guts accesses, such as reading RCW, should eventually be moved into this driver as well. Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
327 lines
12 KiB
C
327 lines
12 KiB
C
/**
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* Freecale 85xx and 86xx Global Utilties register set
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*
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* Authors: Jeff Brown
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* Timur Tabi <timur@freescale.com>
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*
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* Copyright 2004,2007,2012 Freescale Semiconductor, Inc
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef __FSL_GUTS_H__
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#define __FSL_GUTS_H__
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#include <linux/types.h>
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/**
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* Global Utility Registers.
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*
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* Not all registers defined in this structure are available on all chips, so
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* you are expected to know whether a given register actually exists on your
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* chip before you access it.
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*
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* Also, some registers are similar on different chips but have slightly
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* different names. In these cases, one name is chosen to avoid extraneous
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* #ifdefs.
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*/
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struct ccsr_guts {
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u32 porpllsr; /* 0x.0000 - POR PLL Ratio Status Register */
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u32 porbmsr; /* 0x.0004 - POR Boot Mode Status Register */
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u32 porimpscr; /* 0x.0008 - POR I/O Impedance Status and
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* Control Register
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*/
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u32 pordevsr; /* 0x.000c - POR I/O Device Status Register */
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u32 pordbgmsr; /* 0x.0010 - POR Debug Mode Status Register */
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u32 pordevsr2; /* 0x.0014 - POR device status register 2 */
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u8 res018[0x20 - 0x18];
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u32 porcir; /* 0x.0020 - POR Configuration Information
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* Register
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*/
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u8 res024[0x30 - 0x24];
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u32 gpiocr; /* 0x.0030 - GPIO Control Register */
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u8 res034[0x40 - 0x34];
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u32 gpoutdr; /* 0x.0040 - General-Purpose Output Data
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* Register
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*/
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u8 res044[0x50 - 0x44];
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u32 gpindr; /* 0x.0050 - General-Purpose Input Data
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* Register
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*/
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u8 res054[0x60 - 0x54];
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u32 pmuxcr; /* 0x.0060 - Alternate Function Signal
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* Multiplex Control
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*/
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u32 pmuxcr2; /* 0x.0064 - Alternate function signal
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* multiplex control 2
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*/
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u32 dmuxcr; /* 0x.0068 - DMA Mux Control Register */
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u8 res06c[0x70 - 0x6c];
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u32 devdisr; /* 0x.0070 - Device Disable Control */
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#define CCSR_GUTS_DEVDISR_TB1 0x00001000
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#define CCSR_GUTS_DEVDISR_TB0 0x00004000
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u32 devdisr2; /* 0x.0074 - Device Disable Control 2 */
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u8 res078[0x7c - 0x78];
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u32 pmjcr; /* 0x.007c - 4 Power Management Jog Control
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* Register
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*/
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u32 powmgtcsr; /* 0x.0080 - Power Management Status and
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* Control Register
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*/
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u32 pmrccr; /* 0x.0084 - Power Management Reset Counter
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* Configuration Register
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*/
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u32 pmpdccr; /* 0x.0088 - Power Management Power Down Counter
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* Configuration Register
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*/
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u32 pmcdr; /* 0x.008c - 4Power management clock disable
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* register
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*/
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u32 mcpsumr; /* 0x.0090 - Machine Check Summary Register */
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u32 rstrscr; /* 0x.0094 - Reset Request Status and
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* Control Register
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*/
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u32 ectrstcr; /* 0x.0098 - Exception reset control register */
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u32 autorstsr; /* 0x.009c - Automatic reset status register */
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u32 pvr; /* 0x.00a0 - Processor Version Register */
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u32 svr; /* 0x.00a4 - System Version Register */
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u8 res0a8[0xb0 - 0xa8];
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u32 rstcr; /* 0x.00b0 - Reset Control Register */
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u8 res0b4[0xc0 - 0xb4];
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u32 iovselsr; /* 0x.00c0 - I/O voltage select status register
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Called 'elbcvselcr' on 86xx SOCs */
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u8 res0c4[0x100 - 0xc4];
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u32 rcwsr[16]; /* 0x.0100 - Reset Control Word Status registers
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There are 16 registers */
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u8 res140[0x224 - 0x140];
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u32 iodelay1; /* 0x.0224 - IO delay control register 1 */
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u32 iodelay2; /* 0x.0228 - IO delay control register 2 */
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u8 res22c[0x604 - 0x22c];
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u32 pamubypenr; /* 0x.604 - PAMU bypass enable register */
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u8 res608[0x800 - 0x608];
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u32 clkdvdr; /* 0x.0800 - Clock Divide Register */
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u8 res804[0x900 - 0x804];
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u32 ircr; /* 0x.0900 - Infrared Control Register */
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u8 res904[0x908 - 0x904];
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u32 dmacr; /* 0x.0908 - DMA Control Register */
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u8 res90c[0x914 - 0x90c];
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u32 elbccr; /* 0x.0914 - eLBC Control Register */
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u8 res918[0xb20 - 0x918];
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u32 ddr1clkdr; /* 0x.0b20 - DDR1 Clock Disable Register */
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u32 ddr2clkdr; /* 0x.0b24 - DDR2 Clock Disable Register */
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u32 ddrclkdr; /* 0x.0b28 - DDR Clock Disable Register */
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u8 resb2c[0xe00 - 0xb2c];
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u32 clkocr; /* 0x.0e00 - Clock Out Select Register */
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u8 rese04[0xe10 - 0xe04];
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u32 ddrdllcr; /* 0x.0e10 - DDR DLL Control Register */
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u8 rese14[0xe20 - 0xe14];
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u32 lbcdllcr; /* 0x.0e20 - LBC DLL Control Register */
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u32 cpfor; /* 0x.0e24 - L2 charge pump fuse override
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* register
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*/
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u8 rese28[0xf04 - 0xe28];
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u32 srds1cr0; /* 0x.0f04 - SerDes1 Control Register 0 */
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u32 srds1cr1; /* 0x.0f08 - SerDes1 Control Register 0 */
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u8 resf0c[0xf2c - 0xf0c];
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u32 itcr; /* 0x.0f2c - Internal transaction control
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* register
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*/
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u8 resf30[0xf40 - 0xf30];
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u32 srds2cr0; /* 0x.0f40 - SerDes2 Control Register 0 */
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u32 srds2cr1; /* 0x.0f44 - SerDes2 Control Register 0 */
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} __attribute__ ((packed));
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u32 fsl_guts_get_svr(void);
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/* Alternate function signal multiplex control */
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#define MPC85xx_PMUXCR_QE(x) (0x8000 >> (x))
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#ifdef CONFIG_PPC_86xx
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#define CCSR_GUTS_DMACR_DEV_SSI 0 /* DMA controller/channel set to SSI */
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#define CCSR_GUTS_DMACR_DEV_IR 1 /* DMA controller/channel set to IR */
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/*
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* Set the DMACR register in the GUTS
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*
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* The DMACR register determines the source of initiated transfers for each
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* channel on each DMA controller. Rather than have a bunch of repetitive
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* macros for the bit patterns, we just have a function that calculates
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* them.
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*
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* guts: Pointer to GUTS structure
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* co: The DMA controller (0 or 1)
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* ch: The channel on the DMA controller (0, 1, 2, or 3)
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* device: The device to set as the source (CCSR_GUTS_DMACR_DEV_xx)
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*/
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static inline void guts_set_dmacr(struct ccsr_guts __iomem *guts,
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unsigned int co, unsigned int ch, unsigned int device)
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{
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unsigned int shift = 16 + (8 * (1 - co) + 2 * (3 - ch));
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clrsetbits_be32(&guts->dmacr, 3 << shift, device << shift);
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}
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#define CCSR_GUTS_PMUXCR_LDPSEL 0x00010000
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#define CCSR_GUTS_PMUXCR_SSI1_MASK 0x0000C000 /* Bitmask for SSI1 */
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#define CCSR_GUTS_PMUXCR_SSI1_LA 0x00000000 /* Latched address */
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#define CCSR_GUTS_PMUXCR_SSI1_HI 0x00004000 /* High impedance */
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#define CCSR_GUTS_PMUXCR_SSI1_SSI 0x00008000 /* Used for SSI1 */
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#define CCSR_GUTS_PMUXCR_SSI2_MASK 0x00003000 /* Bitmask for SSI2 */
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#define CCSR_GUTS_PMUXCR_SSI2_LA 0x00000000 /* Latched address */
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#define CCSR_GUTS_PMUXCR_SSI2_HI 0x00001000 /* High impedance */
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#define CCSR_GUTS_PMUXCR_SSI2_SSI 0x00002000 /* Used for SSI2 */
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#define CCSR_GUTS_PMUXCR_LA_22_25_LA 0x00000000 /* Latched Address */
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#define CCSR_GUTS_PMUXCR_LA_22_25_HI 0x00000400 /* High impedance */
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#define CCSR_GUTS_PMUXCR_DBGDRV 0x00000200 /* Signals not driven */
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#define CCSR_GUTS_PMUXCR_DMA2_0 0x00000008
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#define CCSR_GUTS_PMUXCR_DMA2_3 0x00000004
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#define CCSR_GUTS_PMUXCR_DMA1_0 0x00000002
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#define CCSR_GUTS_PMUXCR_DMA1_3 0x00000001
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/*
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* Set the DMA external control bits in the GUTS
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*
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* The DMA external control bits in the PMUXCR are only meaningful for
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* channels 0 and 3. Any other channels are ignored.
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*
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* guts: Pointer to GUTS structure
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* co: The DMA controller (0 or 1)
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* ch: The channel on the DMA controller (0, 1, 2, or 3)
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* value: the new value for the bit (0 or 1)
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*/
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static inline void guts_set_pmuxcr_dma(struct ccsr_guts __iomem *guts,
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unsigned int co, unsigned int ch, unsigned int value)
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{
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if ((ch == 0) || (ch == 3)) {
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unsigned int shift = 2 * (co + 1) - (ch & 1) - 1;
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clrsetbits_be32(&guts->pmuxcr, 1 << shift, value << shift);
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}
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}
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#define CCSR_GUTS_CLKDVDR_PXCKEN 0x80000000
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#define CCSR_GUTS_CLKDVDR_SSICKEN 0x20000000
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#define CCSR_GUTS_CLKDVDR_PXCKINV 0x10000000
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#define CCSR_GUTS_CLKDVDR_PXCKDLY_SHIFT 25
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#define CCSR_GUTS_CLKDVDR_PXCKDLY_MASK 0x06000000
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#define CCSR_GUTS_CLKDVDR_PXCKDLY(x) \
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(((x) & 3) << CCSR_GUTS_CLKDVDR_PXCKDLY_SHIFT)
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#define CCSR_GUTS_CLKDVDR_PXCLK_SHIFT 16
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#define CCSR_GUTS_CLKDVDR_PXCLK_MASK 0x001F0000
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#define CCSR_GUTS_CLKDVDR_PXCLK(x) (((x) & 31) << CCSR_GUTS_CLKDVDR_PXCLK_SHIFT)
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#define CCSR_GUTS_CLKDVDR_SSICLK_MASK 0x000000FF
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#define CCSR_GUTS_CLKDVDR_SSICLK(x) ((x) & CCSR_GUTS_CLKDVDR_SSICLK_MASK)
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#endif
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struct ccsr_rcpm_v1 {
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u8 res0000[4];
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__be32 cdozsr; /* 0x0004 Core Doze Status Register */
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u8 res0008[4];
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__be32 cdozcr; /* 0x000c Core Doze Control Register */
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u8 res0010[4];
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__be32 cnapsr; /* 0x0014 Core Nap Status Register */
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u8 res0018[4];
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__be32 cnapcr; /* 0x001c Core Nap Control Register */
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u8 res0020[4];
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__be32 cdozpsr; /* 0x0024 Core Doze Previous Status Register */
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u8 res0028[4];
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__be32 cnappsr; /* 0x002c Core Nap Previous Status Register */
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u8 res0030[4];
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__be32 cwaitsr; /* 0x0034 Core Wait Status Register */
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u8 res0038[4];
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__be32 cwdtdsr; /* 0x003c Core Watchdog Detect Status Register */
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__be32 powmgtcsr; /* 0x0040 PM Control&Status Register */
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#define RCPM_POWMGTCSR_SLP 0x00020000
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u8 res0044[12];
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__be32 ippdexpcr; /* 0x0050 IP Powerdown Exception Control Register */
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u8 res0054[16];
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__be32 cpmimr; /* 0x0064 Core PM IRQ Mask Register */
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u8 res0068[4];
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__be32 cpmcimr; /* 0x006c Core PM Critical IRQ Mask Register */
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u8 res0070[4];
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__be32 cpmmcmr; /* 0x0074 Core PM Machine Check Mask Register */
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u8 res0078[4];
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__be32 cpmnmimr; /* 0x007c Core PM NMI Mask Register */
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u8 res0080[4];
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__be32 ctbenr; /* 0x0084 Core Time Base Enable Register */
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u8 res0088[4];
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__be32 ctbckselr; /* 0x008c Core Time Base Clock Select Register */
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u8 res0090[4];
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__be32 ctbhltcr; /* 0x0094 Core Time Base Halt Control Register */
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u8 res0098[4];
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__be32 cmcpmaskcr; /* 0x00a4 Core Machine Check Mask Register */
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};
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struct ccsr_rcpm_v2 {
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u8 res_00[12];
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__be32 tph10sr0; /* Thread PH10 Status Register */
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u8 res_10[12];
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__be32 tph10setr0; /* Thread PH10 Set Control Register */
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u8 res_20[12];
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__be32 tph10clrr0; /* Thread PH10 Clear Control Register */
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u8 res_30[12];
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__be32 tph10psr0; /* Thread PH10 Previous Status Register */
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u8 res_40[12];
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__be32 twaitsr0; /* Thread Wait Status Register */
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u8 res_50[96];
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__be32 pcph15sr; /* Physical Core PH15 Status Register */
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__be32 pcph15setr; /* Physical Core PH15 Set Control Register */
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__be32 pcph15clrr; /* Physical Core PH15 Clear Control Register */
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__be32 pcph15psr; /* Physical Core PH15 Prev Status Register */
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u8 res_c0[16];
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__be32 pcph20sr; /* Physical Core PH20 Status Register */
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__be32 pcph20setr; /* Physical Core PH20 Set Control Register */
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__be32 pcph20clrr; /* Physical Core PH20 Clear Control Register */
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__be32 pcph20psr; /* Physical Core PH20 Prev Status Register */
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__be32 pcpw20sr; /* Physical Core PW20 Status Register */
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u8 res_e0[12];
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__be32 pcph30sr; /* Physical Core PH30 Status Register */
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__be32 pcph30setr; /* Physical Core PH30 Set Control Register */
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__be32 pcph30clrr; /* Physical Core PH30 Clear Control Register */
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__be32 pcph30psr; /* Physical Core PH30 Prev Status Register */
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u8 res_100[32];
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__be32 ippwrgatecr; /* IP Power Gating Control Register */
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u8 res_124[12];
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__be32 powmgtcsr; /* Power Management Control & Status Reg */
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#define RCPM_POWMGTCSR_LPM20_RQ 0x00100000
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#define RCPM_POWMGTCSR_LPM20_ST 0x00000200
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#define RCPM_POWMGTCSR_P_LPM20_ST 0x00000100
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u8 res_134[12];
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__be32 ippdexpcr[4]; /* IP Powerdown Exception Control Reg */
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u8 res_150[12];
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__be32 tpmimr0; /* Thread PM Interrupt Mask Reg */
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u8 res_160[12];
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__be32 tpmcimr0; /* Thread PM Crit Interrupt Mask Reg */
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u8 res_170[12];
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__be32 tpmmcmr0; /* Thread PM Machine Check Interrupt Mask Reg */
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u8 res_180[12];
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__be32 tpmnmimr0; /* Thread PM NMI Mask Reg */
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u8 res_190[12];
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__be32 tmcpmaskcr0; /* Thread Machine Check Mask Control Reg */
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__be32 pctbenr; /* Physical Core Time Base Enable Reg */
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__be32 pctbclkselr; /* Physical Core Time Base Clock Select */
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__be32 tbclkdivr; /* Time Base Clock Divider Register */
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u8 res_1ac[4];
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__be32 ttbhltcr[4]; /* Thread Time Base Halt Control Register */
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__be32 clpcl10sr; /* Cluster PCL10 Status Register */
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__be32 clpcl10setr; /* Cluster PCL30 Set Control Register */
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__be32 clpcl10clrr; /* Cluster PCL30 Clear Control Register */
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__be32 clpcl10psr; /* Cluster PCL30 Prev Status Register */
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__be32 cddslpsetr; /* Core Domain Deep Sleep Set Register */
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__be32 cddslpclrr; /* Core Domain Deep Sleep Clear Register */
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__be32 cdpwroksetr; /* Core Domain Power OK Set Register */
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__be32 cdpwrokclrr; /* Core Domain Power OK Clear Register */
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__be32 cdpwrensr; /* Core Domain Power Enable Status Register */
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__be32 cddslsr; /* Core Domain Deep Sleep Status Register */
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u8 res_1e8[8];
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__be32 dslpcntcr[8]; /* Deep Sleep Counter Cfg Register */
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u8 res_300[3568];
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};
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#endif
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