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Linux kernel mirror (for testing)
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linux
1/**
2 * Freecale 85xx and 86xx Global Utilties register set
3 *
4 * Authors: Jeff Brown
5 * Timur Tabi <timur@freescale.com>
6 *
7 * Copyright 2004,2007 Freescale Semiconductor, Inc
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 */
14
15#ifndef __ASM_POWERPC_FSL_GUTS_H__
16#define __ASM_POWERPC_FSL_GUTS_H__
17#ifdef __KERNEL__
18
19/*
20 * These #ifdefs are safe because it's not possible to build a kernel that
21 * runs on e500 and e600 cores.
22 */
23
24#if !defined(CONFIG_PPC_85xx) && !defined(CONFIG_PPC_86xx)
25#error Only 85xx and 86xx SOCs are supported
26#endif
27
28/**
29 * Global Utility Registers.
30 *
31 * Not all registers defined in this structure are available on all chips, so
32 * you are expected to know whether a given register actually exists on your
33 * chip before you access it.
34 *
35 * Also, some registers are similar on different chips but have slightly
36 * different names. In these cases, one name is chosen to avoid extraneous
37 * #ifdefs.
38 */
39#ifdef CONFIG_PPC_85xx
40struct ccsr_guts_85xx {
41#else
42struct ccsr_guts_86xx {
43#endif
44 __be32 porpllsr; /* 0x.0000 - POR PLL Ratio Status Register */
45 __be32 porbmsr; /* 0x.0004 - POR Boot Mode Status Register */
46 __be32 porimpscr; /* 0x.0008 - POR I/O Impedance Status and Control Register */
47 __be32 pordevsr; /* 0x.000c - POR I/O Device Status Register */
48 __be32 pordbgmsr; /* 0x.0010 - POR Debug Mode Status Register */
49 __be32 pordevsr2; /* 0x.0014 - POR device status register 2 */
50 u8 res018[0x20 - 0x18];
51 __be32 porcir; /* 0x.0020 - POR Configuration Information Register */
52 u8 res024[0x30 - 0x24];
53 __be32 gpiocr; /* 0x.0030 - GPIO Control Register */
54 u8 res034[0x40 - 0x34];
55 __be32 gpoutdr; /* 0x.0040 - General-Purpose Output Data Register */
56 u8 res044[0x50 - 0x44];
57 __be32 gpindr; /* 0x.0050 - General-Purpose Input Data Register */
58 u8 res054[0x60 - 0x54];
59 __be32 pmuxcr; /* 0x.0060 - Alternate Function Signal Multiplex Control */
60 __be32 pmuxcr2; /* 0x.0064 - Alternate function signal multiplex control 2 */
61 __be32 dmuxcr; /* 0x.0068 - DMA Mux Control Register */
62 u8 res06c[0x70 - 0x6c];
63 __be32 devdisr; /* 0x.0070 - Device Disable Control */
64 __be32 devdisr2; /* 0x.0074 - Device Disable Control 2 */
65 u8 res078[0x7c - 0x78];
66 __be32 pmjcr; /* 0x.007c - 4 Power Management Jog Control Register */
67 __be32 powmgtcsr; /* 0x.0080 - Power Management Status and Control Register */
68 __be32 pmrccr; /* 0x.0084 - Power Management Reset Counter Configuration Register */
69 __be32 pmpdccr; /* 0x.0088 - Power Management Power Down Counter Configuration Register */
70 __be32 pmcdr; /* 0x.008c - 4Power management clock disable register */
71 __be32 mcpsumr; /* 0x.0090 - Machine Check Summary Register */
72 __be32 rstrscr; /* 0x.0094 - Reset Request Status and Control Register */
73 __be32 ectrstcr; /* 0x.0098 - Exception reset control register */
74 __be32 autorstsr; /* 0x.009c - Automatic reset status register */
75 __be32 pvr; /* 0x.00a0 - Processor Version Register */
76 __be32 svr; /* 0x.00a4 - System Version Register */
77 u8 res0a8[0xb0 - 0xa8];
78 __be32 rstcr; /* 0x.00b0 - Reset Control Register */
79 u8 res0b4[0xc0 - 0xb4];
80#ifdef CONFIG_PPC_85xx
81 __be32 iovselsr; /* 0x.00c0 - I/O voltage select status register */
82#else
83 __be32 elbcvselcr; /* 0x.00c0 - eLBC Voltage Select Ctrl Reg */
84#endif
85 u8 res0c4[0x224 - 0xc4];
86 __be32 iodelay1; /* 0x.0224 - IO delay control register 1 */
87 __be32 iodelay2; /* 0x.0228 - IO delay control register 2 */
88 u8 res22c[0x800 - 0x22c];
89 __be32 clkdvdr; /* 0x.0800 - Clock Divide Register */
90 u8 res804[0x900 - 0x804];
91 __be32 ircr; /* 0x.0900 - Infrared Control Register */
92 u8 res904[0x908 - 0x904];
93 __be32 dmacr; /* 0x.0908 - DMA Control Register */
94 u8 res90c[0x914 - 0x90c];
95 __be32 elbccr; /* 0x.0914 - eLBC Control Register */
96 u8 res918[0xb20 - 0x918];
97 __be32 ddr1clkdr; /* 0x.0b20 - DDR1 Clock Disable Register */
98 __be32 ddr2clkdr; /* 0x.0b24 - DDR2 Clock Disable Register */
99 __be32 ddrclkdr; /* 0x.0b28 - DDR Clock Disable Register */
100 u8 resb2c[0xe00 - 0xb2c];
101 __be32 clkocr; /* 0x.0e00 - Clock Out Select Register */
102 u8 rese04[0xe10 - 0xe04];
103 __be32 ddrdllcr; /* 0x.0e10 - DDR DLL Control Register */
104 u8 rese14[0xe20 - 0xe14];
105 __be32 lbcdllcr; /* 0x.0e20 - LBC DLL Control Register */
106 __be32 cpfor; /* 0x.0e24 - L2 charge pump fuse override register */
107 u8 rese28[0xf04 - 0xe28];
108 __be32 srds1cr0; /* 0x.0f04 - SerDes1 Control Register 0 */
109 __be32 srds1cr1; /* 0x.0f08 - SerDes1 Control Register 0 */
110 u8 resf0c[0xf2c - 0xf0c];
111 __be32 itcr; /* 0x.0f2c - Internal transaction control register */
112 u8 resf30[0xf40 - 0xf30];
113 __be32 srds2cr0; /* 0x.0f40 - SerDes2 Control Register 0 */
114 __be32 srds2cr1; /* 0x.0f44 - SerDes2 Control Register 0 */
115} __attribute__ ((packed));
116
117#ifdef CONFIG_PPC_86xx
118
119#define CCSR_GUTS_DMACR_DEV_SSI 0 /* DMA controller/channel set to SSI */
120#define CCSR_GUTS_DMACR_DEV_IR 1 /* DMA controller/channel set to IR */
121
122/*
123 * Set the DMACR register in the GUTS
124 *
125 * The DMACR register determines the source of initiated transfers for each
126 * channel on each DMA controller. Rather than have a bunch of repetitive
127 * macros for the bit patterns, we just have a function that calculates
128 * them.
129 *
130 * guts: Pointer to GUTS structure
131 * co: The DMA controller (0 or 1)
132 * ch: The channel on the DMA controller (0, 1, 2, or 3)
133 * device: The device to set as the source (CCSR_GUTS_DMACR_DEV_xx)
134 */
135static inline void guts_set_dmacr(struct ccsr_guts_86xx __iomem *guts,
136 unsigned int co, unsigned int ch, unsigned int device)
137{
138 unsigned int shift = 16 + (8 * (1 - co) + 2 * (3 - ch));
139
140 clrsetbits_be32(&guts->dmacr, 3 << shift, device << shift);
141}
142
143#define CCSR_GUTS_PMUXCR_LDPSEL 0x00010000
144#define CCSR_GUTS_PMUXCR_SSI1_MASK 0x0000C000 /* Bitmask for SSI1 */
145#define CCSR_GUTS_PMUXCR_SSI1_LA 0x00000000 /* Latched address */
146#define CCSR_GUTS_PMUXCR_SSI1_HI 0x00004000 /* High impedance */
147#define CCSR_GUTS_PMUXCR_SSI1_SSI 0x00008000 /* Used for SSI1 */
148#define CCSR_GUTS_PMUXCR_SSI2_MASK 0x00003000 /* Bitmask for SSI2 */
149#define CCSR_GUTS_PMUXCR_SSI2_LA 0x00000000 /* Latched address */
150#define CCSR_GUTS_PMUXCR_SSI2_HI 0x00001000 /* High impedance */
151#define CCSR_GUTS_PMUXCR_SSI2_SSI 0x00002000 /* Used for SSI2 */
152#define CCSR_GUTS_PMUXCR_LA_22_25_LA 0x00000000 /* Latched Address */
153#define CCSR_GUTS_PMUXCR_LA_22_25_HI 0x00000400 /* High impedance */
154#define CCSR_GUTS_PMUXCR_DBGDRV 0x00000200 /* Signals not driven */
155#define CCSR_GUTS_PMUXCR_DMA2_0 0x00000008
156#define CCSR_GUTS_PMUXCR_DMA2_3 0x00000004
157#define CCSR_GUTS_PMUXCR_DMA1_0 0x00000002
158#define CCSR_GUTS_PMUXCR_DMA1_3 0x00000001
159
160/*
161 * Set the DMA external control bits in the GUTS
162 *
163 * The DMA external control bits in the PMUXCR are only meaningful for
164 * channels 0 and 3. Any other channels are ignored.
165 *
166 * guts: Pointer to GUTS structure
167 * co: The DMA controller (0 or 1)
168 * ch: The channel on the DMA controller (0, 1, 2, or 3)
169 * value: the new value for the bit (0 or 1)
170 */
171static inline void guts_set_pmuxcr_dma(struct ccsr_guts_86xx __iomem *guts,
172 unsigned int co, unsigned int ch, unsigned int value)
173{
174 if ((ch == 0) || (ch == 3)) {
175 unsigned int shift = 2 * (co + 1) - (ch & 1) - 1;
176
177 clrsetbits_be32(&guts->pmuxcr, 1 << shift, value << shift);
178 }
179}
180
181#define CCSR_GUTS_CLKDVDR_PXCKEN 0x80000000
182#define CCSR_GUTS_CLKDVDR_SSICKEN 0x20000000
183#define CCSR_GUTS_CLKDVDR_PXCKINV 0x10000000
184#define CCSR_GUTS_CLKDVDR_PXCKDLY_SHIFT 25
185#define CCSR_GUTS_CLKDVDR_PXCKDLY_MASK 0x06000000
186#define CCSR_GUTS_CLKDVDR_PXCKDLY(x) \
187 (((x) & 3) << CCSR_GUTS_CLKDVDR_PXCKDLY_SHIFT)
188#define CCSR_GUTS_CLKDVDR_PXCLK_SHIFT 16
189#define CCSR_GUTS_CLKDVDR_PXCLK_MASK 0x001F0000
190#define CCSR_GUTS_CLKDVDR_PXCLK(x) (((x) & 31) << CCSR_GUTS_CLKDVDR_PXCLK_SHIFT)
191#define CCSR_GUTS_CLKDVDR_SSICLK_MASK 0x000000FF
192#define CCSR_GUTS_CLKDVDR_SSICLK(x) ((x) & CCSR_GUTS_CLKDVDR_SSICLK_MASK)
193
194#endif
195
196#endif
197#endif