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linux/include/asm-powerpc/immap_86xx.h
Timur Tabi c5eeb55999 [POWERPC] 86xx: fix guts_set_dmacr() and add guts_set_pmuxcr_dma() to immap_86xx.h 
Updated guts_set_dmacr() to enumerate the DMA controllers at 0, instead of 1,
so that it now matches other related functions.  Added function
guts_set_pmuxcr_dma() to set the external DMA control bits in the PMUXCR
register of the global utilities structure.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 13:57:18 -06:00

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/**
* MPC86xx Internal Memory Map
*
* Authors: Jeff Brown
* Timur Tabi <timur@freescale.com>
*
* Copyright 2004,2007 Freescale Semiconductor, Inc
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This header file defines structures for various 86xx SOC devices that are
* used by multiple source files.
*/
#ifndef __ASM_POWERPC_IMMAP_86XX_H__
#define __ASM_POWERPC_IMMAP_86XX_H__
#ifdef __KERNEL__
/* Global Utility Registers */
struct ccsr_guts {
__be32 porpllsr; /* 0x.0000 - POR PLL Ratio Status Register */
__be32 porbmsr; /* 0x.0004 - POR Boot Mode Status Register */
__be32 porimpscr; /* 0x.0008 - POR I/O Impedance Status and Control Register */
__be32 pordevsr; /* 0x.000c - POR I/O Device Status Register */
__be32 pordbgmsr; /* 0x.0010 - POR Debug Mode Status Register */
u8 res1[0x20 - 0x14];
__be32 porcir; /* 0x.0020 - POR Configuration Information Register */
u8 res2[0x30 - 0x24];
__be32 gpiocr; /* 0x.0030 - GPIO Control Register */
u8 res3[0x40 - 0x34];
__be32 gpoutdr; /* 0x.0040 - General-Purpose Output Data Register */
u8 res4[0x50 - 0x44];
__be32 gpindr; /* 0x.0050 - General-Purpose Input Data Register */
u8 res5[0x60 - 0x54];
__be32 pmuxcr; /* 0x.0060 - Alternate Function Signal Multiplex Control */
u8 res6[0x70 - 0x64];
__be32 devdisr; /* 0x.0070 - Device Disable Control */
__be32 devdisr2; /* 0x.0074 - Device Disable Control 2 */
u8 res7[0x80 - 0x78];
__be32 powmgtcsr; /* 0x.0080 - Power Management Status and Control Register */
u8 res8[0x90 - 0x84];
__be32 mcpsumr; /* 0x.0090 - Machine Check Summary Register */
__be32 rstrscr; /* 0x.0094 - Reset Request Status and Control Register */
u8 res9[0xA0 - 0x98];
__be32 pvr; /* 0x.00a0 - Processor Version Register */
__be32 svr; /* 0x.00a4 - System Version Register */
u8 res10[0xB0 - 0xA8];
__be32 rstcr; /* 0x.00b0 - Reset Control Register */
u8 res11[0xC0 - 0xB4];
__be32 elbcvselcr; /* 0x.00c0 - eLBC Voltage Select Ctrl Reg */
u8 res12[0x800 - 0xC4];
__be32 clkdvdr; /* 0x.0800 - Clock Divide Register */
u8 res13[0x900 - 0x804];
__be32 ircr; /* 0x.0900 - Infrared Control Register */
u8 res14[0x908 - 0x904];
__be32 dmacr; /* 0x.0908 - DMA Control Register */
u8 res15[0x914 - 0x90C];
__be32 elbccr; /* 0x.0914 - eLBC Control Register */
u8 res16[0xB20 - 0x918];
__be32 ddr1clkdr; /* 0x.0b20 - DDR1 Clock Disable Register */
__be32 ddr2clkdr; /* 0x.0b24 - DDR2 Clock Disable Register */
__be32 ddrclkdr; /* 0x.0b28 - DDR Clock Disable Register */
u8 res17[0xE00 - 0xB2C];
__be32 clkocr; /* 0x.0e00 - Clock Out Select Register */
u8 res18[0xE10 - 0xE04];
__be32 ddrdllcr; /* 0x.0e10 - DDR DLL Control Register */
u8 res19[0xE20 - 0xE14];
__be32 lbcdllcr; /* 0x.0e20 - LBC DLL Control Register */
u8 res20[0xF04 - 0xE24];
__be32 srds1cr0; /* 0x.0f04 - SerDes1 Control Register 0 */
__be32 srds1cr1; /* 0x.0f08 - SerDes1 Control Register 0 */
u8 res21[0xF40 - 0xF0C];
__be32 srds2cr0; /* 0x.0f40 - SerDes1 Control Register 0 */
__be32 srds2cr1; /* 0x.0f44 - SerDes1 Control Register 0 */
} __attribute__ ((packed));
#define CCSR_GUTS_DMACR_DEV_SSI 0 /* DMA controller/channel set to SSI */
#define CCSR_GUTS_DMACR_DEV_IR 1 /* DMA controller/channel set to IR */
/*
* Set the DMACR register in the GUTS
*
* The DMACR register determines the source of initiated transfers for each
* channel on each DMA controller. Rather than have a bunch of repetitive
* macros for the bit patterns, we just have a function that calculates
* them.
*
* guts: Pointer to GUTS structure
* co: The DMA controller (0 or 1)
* ch: The channel on the DMA controller (0, 1, 2, or 3)
* device: The device to set as the source (CCSR_GUTS_DMACR_DEV_xx)
*/
static inline void guts_set_dmacr(struct ccsr_guts __iomem *guts,
unsigned int co, unsigned int ch, unsigned int device)
{
unsigned int shift = 16 + (8 * (1 - co) + 2 * (3 - ch));
clrsetbits_be32(&guts->dmacr, 3 << shift, device << shift);
}
#define CCSR_GUTS_PMUXCR_LDPSEL 0x00010000
#define CCSR_GUTS_PMUXCR_SSI1_MASK 0x0000C000 /* Bitmask for SSI1 */
#define CCSR_GUTS_PMUXCR_SSI1_LA 0x00000000 /* Latched address */
#define CCSR_GUTS_PMUXCR_SSI1_HI 0x00004000 /* High impedance */
#define CCSR_GUTS_PMUXCR_SSI1_SSI 0x00008000 /* Used for SSI1 */
#define CCSR_GUTS_PMUXCR_SSI2_MASK 0x00003000 /* Bitmask for SSI2 */
#define CCSR_GUTS_PMUXCR_SSI2_LA 0x00000000 /* Latched address */
#define CCSR_GUTS_PMUXCR_SSI2_HI 0x00001000 /* High impedance */
#define CCSR_GUTS_PMUXCR_SSI2_SSI 0x00002000 /* Used for SSI2 */
#define CCSR_GUTS_PMUXCR_LA_22_25_LA 0x00000000 /* Latched Address */
#define CCSR_GUTS_PMUXCR_LA_22_25_HI 0x00000400 /* High impedance */
#define CCSR_GUTS_PMUXCR_DBGDRV 0x00000200 /* Signals not driven */
#define CCSR_GUTS_PMUXCR_DMA2_0 0x00000008
#define CCSR_GUTS_PMUXCR_DMA2_3 0x00000004
#define CCSR_GUTS_PMUXCR_DMA1_0 0x00000002
#define CCSR_GUTS_PMUXCR_DMA1_3 0x00000001
/*
* Set the DMA external control bits in the GUTS
*
* The DMA external control bits in the PMUXCR are only meaningful for
* channels 0 and 3. Any other channels are ignored.
*
* guts: Pointer to GUTS structure
* co: The DMA controller (0 or 1)
* ch: The channel on the DMA controller (0, 1, 2, or 3)
* value: the new value for the bit (0 or 1)
*/
static inline void guts_set_pmuxcr_dma(struct ccsr_guts __iomem *guts,
unsigned int co, unsigned int ch, unsigned int value)
{
if ((ch == 0) || (ch == 3)) {
unsigned int shift = 2 * (co + 1) - (ch & 1) - 1;
clrsetbits_be32(&guts->pmuxcr, 1 << shift, value << shift);
}
}
#define CCSR_GUTS_CLKDVDR_PXCKEN 0x80000000
#define CCSR_GUTS_CLKDVDR_SSICKEN 0x20000000
#define CCSR_GUTS_CLKDVDR_PXCKINV 0x10000000
#define CCSR_GUTS_CLKDVDR_PXCKDLY_SHIFT 25
#define CCSR_GUTS_CLKDVDR_PXCKDLY_MASK 0x06000000
#define CCSR_GUTS_CLKDVDR_PXCKDLY(x) \
(((x) & 3) << CCSR_GUTS_CLKDVDR_PXCKDLY_SHIFT)
#define CCSR_GUTS_CLKDVDR_PXCLK_SHIFT 16
#define CCSR_GUTS_CLKDVDR_PXCLK_MASK 0x001F0000
#define CCSR_GUTS_CLKDVDR_PXCLK(x) (((x) & 31) << CCSR_GUTS_CLKDVDR_PXCLK_SHIFT)
#define CCSR_GUTS_CLKDVDR_SSICLK_MASK 0x000000FF
#define CCSR_GUTS_CLKDVDR_SSICLK(x) ((x) & CCSR_GUTS_CLKDVDR_SSICLK_MASK)
#endif /* __ASM_POWERPC_IMMAP_86XX_H__ */
#endif /* __KERNEL__ */
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