1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * Copyright Intel Corporation (C) 2014-2016. All Rights Reserved |
4 | * |
5 | * Declarations for Altera Arria10 MAX5 System Resource Chip |
6 | * |
7 | * Adapted from DA9052 |
8 | */ |
9 | |
10 | #ifndef __MFD_ALTERA_A10SR_H |
11 | #define __MFD_ALTERA_A10SR_H |
12 | |
13 | #include <linux/completion.h> |
14 | #include <linux/list.h> |
15 | #include <linux/mfd/core.h> |
16 | #include <linux/regmap.h> |
17 | #include <linux/slab.h> |
18 | |
19 | /* Write registers are always on even addresses */ |
20 | #define WRITE_REG_MASK 0xFE |
21 | /* Odd registers are always on odd addresses */ |
22 | #define READ_REG_MASK 0x01 |
23 | |
24 | #define ALTR_A10SR_BITS_PER_REGISTER 8 |
25 | /* |
26 | * To find the correct register, we divide the input GPIO by |
27 | * the number of GPIO in each register. We then need to multiply |
28 | * by 2 because the reads are at odd addresses. |
29 | */ |
30 | #define ALTR_A10SR_REG_OFFSET(X) (((X) / ALTR_A10SR_BITS_PER_REGISTER) << 1) |
31 | #define ALTR_A10SR_REG_BIT(X) ((X) % ALTR_A10SR_BITS_PER_REGISTER) |
32 | #define ALTR_A10SR_REG_BIT_CHG(X, Y) ((X) << ALTR_A10SR_REG_BIT(Y)) |
33 | #define ALTR_A10SR_REG_BIT_MASK(X) (1 << ALTR_A10SR_REG_BIT(X)) |
34 | |
35 | /* Arria10 System Controller Register Defines */ |
36 | #define ALTR_A10SR_NOP 0x00 /* No Change */ |
37 | #define ALTR_A10SR_VERSION_READ 0x00 /* MAX5 Version Read */ |
38 | |
39 | #define ALTR_A10SR_LED_REG 0x02 /* LED - Upper 4 bits */ |
40 | /* LED register Bit Definitions */ |
41 | #define ALTR_A10SR_LED_VALID_SHIFT 4 /* LED - Upper 4 bits valid */ |
42 | #define ALTR_A10SR_OUT_VALID_RANGE_LO ALTR_A10SR_LED_VALID_SHIFT |
43 | #define ALTR_A10SR_OUT_VALID_RANGE_HI 7 |
44 | |
45 | #define ALTR_A10SR_PBDSW_REG 0x04 /* PB & DIP SW - Input only */ |
46 | #define ALTR_A10SR_PBDSW_IRQ_REG 0x06 /* PB & DIP SW Flag Clear */ |
47 | /* Pushbutton & DIP Switch Bit Definitions */ |
48 | #define ALTR_A10SR_IN_VALID_RANGE_LO 8 |
49 | #define ALTR_A10SR_IN_VALID_RANGE_HI 15 |
50 | |
51 | #define ALTR_A10SR_PWR_GOOD1_REG 0x08 /* Power Good1 Read */ |
52 | #define ALTR_A10SR_PWR_GOOD2_REG 0x0A /* Power Good2 Read */ |
53 | #define ALTR_A10SR_PWR_GOOD3_REG 0x0C /* Power Good3 Read */ |
54 | #define ALTR_A10SR_FMCAB_REG 0x0E /* FMCA/B & PCIe Pwr Enable */ |
55 | #define ALTR_A10SR_HPS_RST_REG 0x10 /* HPS Reset */ |
56 | #define ALTR_A10SR_USB_QSPI_REG 0x12 /* USB, BQSPI, FILE Reset */ |
57 | #define ALTR_A10SR_SFPA_REG 0x14 /* SFPA Control Reg */ |
58 | #define ALTR_A10SR_SFPB_REG 0x16 /* SFPB Control Reg */ |
59 | #define ALTR_A10SR_I2C_M_REG 0x18 /* I2C Master Select */ |
60 | #define ALTR_A10SR_WARM_RST_REG 0x1A /* HPS Warm Reset */ |
61 | #define ALTR_A10SR_WR_KEY_REG 0x1C /* HPS Warm Reset Key */ |
62 | #define ALTR_A10SR_PMBUS_REG 0x1E /* HPS PM Bus */ |
63 | |
64 | /** |
65 | * struct altr_a10sr - Altera Max5 MFD device private data structure |
66 | * @dev: : this device |
67 | * @regmap: the regmap assigned to the parent device. |
68 | */ |
69 | struct altr_a10sr { |
70 | struct device *dev; |
71 | struct regmap *regmap; |
72 | }; |
73 | |
74 | #endif /* __MFD_ALTERA_A10SR_H */ |
75 | |