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1/*
2 * Copyright (c) 2011 Broadcom Corporation
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#ifndef _BRCM_AIUTILS_H_
18#define _BRCM_AIUTILS_H_
19
20#include <linux/bcma/bcma.h>
21
22#include "types.h"
23
24/*
25 * SOC Interconnect Address Map.
26 * All regions may not exist on all chips.
27 */
28/* each core gets 4Kbytes for registers */
29#define SI_CORE_SIZE 0x1000
30/*
31 * Max cores (this is arbitrary, for software
32 * convenience and could be changed if we
33 * make any larger chips
34 */
35#define SI_MAXCORES 16
36
37/* Client Mode sb2pcitranslation2 size in bytes */
38#define SI_PCI_DMA_SZ 0x40000000
39
40/* PCIE Client Mode sb2pcitranslation2 (2 ZettaBytes), high 32 bits */
41#define SI_PCIE_DMA_H32 0x80000000
42
43/* chipcommon being the first core: */
44#define SI_CC_IDX 0
45
46/* SOC Interconnect types (aka chip types) */
47#define SOCI_AI 1
48
49/* A register that is common to all cores to
50 * communicate w/PMU regarding clock control.
51 */
52#define SI_CLK_CTL_ST 0x1e0 /* clock control and status */
53
54/* clk_ctl_st register */
55#define CCS_FORCEALP 0x00000001 /* force ALP request */
56#define CCS_FORCEHT 0x00000002 /* force HT request */
57#define CCS_FORCEILP 0x00000004 /* force ILP request */
58#define CCS_ALPAREQ 0x00000008 /* ALP Avail Request */
59#define CCS_HTAREQ 0x00000010 /* HT Avail Request */
60#define CCS_FORCEHWREQOFF 0x00000020 /* Force HW Clock Request Off */
61#define CCS_ERSRC_REQ_MASK 0x00000700 /* external resource requests */
62#define CCS_ERSRC_REQ_SHIFT 8
63#define CCS_ALPAVAIL 0x00010000 /* ALP is available */
64#define CCS_HTAVAIL 0x00020000 /* HT is available */
65#define CCS_BP_ON_APL 0x00040000 /* RO: running on ALP clock */
66#define CCS_BP_ON_HT 0x00080000 /* RO: running on HT clock */
67#define CCS_ERSRC_STS_MASK 0x07000000 /* external resource status */
68#define CCS_ERSRC_STS_SHIFT 24
69
70/* HT avail in chipc and pcmcia on 4328a0 */
71#define CCS0_HTAVAIL 0x00010000
72/* ALP avail in chipc and pcmcia on 4328a0 */
73#define CCS0_ALPAVAIL 0x00020000
74
75/* Not really related to SOC Interconnect, but a couple of software
76 * conventions for the use the flash space:
77 */
78
79/* Minumum amount of flash we support */
80#define FLASH_MIN 0x00020000 /* Minimum flash size */
81
82#define CC_SROM_OTP 0x800 /* SROM/OTP address space */
83
84/* gpiotimerval */
85#define GPIO_ONTIME_SHIFT 16
86
87/* Fields in clkdiv */
88#define CLKD_OTP 0x000f0000
89#define CLKD_OTP_SHIFT 16
90
91/* dynamic clock control defines */
92#define LPOMINFREQ 25000 /* low power oscillator min */
93#define LPOMAXFREQ 43000 /* low power oscillator max */
94#define XTALMINFREQ 19800000 /* 20 MHz - 1% */
95#define XTALMAXFREQ 20200000 /* 20 MHz + 1% */
96#define PCIMINFREQ 25000000 /* 25 MHz */
97#define PCIMAXFREQ 34000000 /* 33 MHz + fudge */
98
99#define ILP_DIV_5MHZ 0 /* ILP = 5 MHz */
100#define ILP_DIV_1MHZ 4 /* ILP = 1 MHz */
101
102/* clkctl xtal what flags */
103#define XTAL 0x1 /* primary crystal oscillator (2050) */
104#define PLL 0x2 /* main chip pll */
105
106/* GPIO usage priorities */
107#define GPIO_DRV_PRIORITY 0 /* Driver */
108#define GPIO_APP_PRIORITY 1 /* Application */
109#define GPIO_HI_PRIORITY 2 /* Highest priority. Ignore GPIO
110 * reservation
111 */
112
113/* GPIO pull up/down */
114#define GPIO_PULLUP 0
115#define GPIO_PULLDN 1
116
117/* GPIO event regtype */
118#define GPIO_REGEVT 0 /* GPIO register event */
119#define GPIO_REGEVT_INTMSK 1 /* GPIO register event int mask */
120#define GPIO_REGEVT_INTPOL 2 /* GPIO register event int polarity */
121
122/* device path */
123#define SI_DEVPATH_BUFSZ 16 /* min buffer size in bytes */
124
125/* SI routine enumeration: to be used by update function with multiple hooks */
126#define SI_DOATTACH 1
127#define SI_PCIDOWN 2
128#define SI_PCIUP 3
129
130/*
131 * Data structure to export all chip specific common variables
132 * public (read-only) portion of aiutils handle returned by si_attach()
133 */
134struct si_pub {
135 int ccrev; /* chip common core rev */
136 u32 cccaps; /* chip common capabilities */
137 int pmurev; /* pmu core rev */
138 u32 pmucaps; /* pmu capabilities */
139 uint boardtype; /* board type */
140 uint boardvendor; /* board vendor */
141 uint chip; /* chip number */
142 uint chiprev; /* chip revision */
143 uint chippkg; /* chip package option */
144};
145
146struct pci_dev;
147
148/* misc si info needed by some of the routines */
149struct si_info {
150 struct si_pub pub; /* back plane public state (must be first) */
151 struct bcma_bus *icbus; /* handle to soc interconnect bus */
152 struct pci_dev *pcibus; /* handle to pci bus */
153
154 u32 chipst; /* chip status */
155};
156
157/*
158 * Many of the routines below take an 'sih' handle as their first arg.
159 * Allocate this by calling si_attach(). Free it by calling si_detach().
160 * At any one time, the sih is logically focused on one particular si core
161 * (the "current core").
162 * Use si_setcore() or si_setcoreidx() to change the association to another core
163 */
164
165
166/* AMBA Interconnect exported externs */
167u32 ai_core_cflags(struct bcma_device *core, u32 mask, u32 val);
168
169/* === exported functions === */
170struct si_pub *ai_attach(struct bcma_bus *pbus);
171void ai_detach(struct si_pub *sih);
172uint ai_cc_reg(struct si_pub *sih, uint regoff, u32 mask, u32 val);
173void ai_clkctl_init(struct si_pub *sih);
174u16 ai_clkctl_fast_pwrup_delay(struct si_pub *sih);
175bool ai_clkctl_cc(struct si_pub *sih, enum bcma_clkmode mode);
176bool ai_deviceremoved(struct si_pub *sih);
177
178/* Enable Ex-PA for 4313 */
179void ai_epa_4313war(struct si_pub *sih);
180
181static inline u32 ai_get_cccaps(struct si_pub *sih)
182{
183 return sih->cccaps;
184}
185
186static inline int ai_get_pmurev(struct si_pub *sih)
187{
188 return sih->pmurev;
189}
190
191static inline u32 ai_get_pmucaps(struct si_pub *sih)
192{
193 return sih->pmucaps;
194}
195
196static inline uint ai_get_boardtype(struct si_pub *sih)
197{
198 return sih->boardtype;
199}
200
201static inline uint ai_get_boardvendor(struct si_pub *sih)
202{
203 return sih->boardvendor;
204}
205
206static inline uint ai_get_chip_id(struct si_pub *sih)
207{
208 return sih->chip;
209}
210
211static inline uint ai_get_chiprev(struct si_pub *sih)
212{
213 return sih->chiprev;
214}
215
216static inline uint ai_get_chippkg(struct si_pub *sih)
217{
218 return sih->chippkg;
219}
220
221#endif /* _BRCM_AIUTILS_H_ */