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a3ebb580 SB |
1 | /* |
2 | * Aspeed i2c bus interface to reading and writing to i2c device registers | |
3 | * | |
4 | * Copyright (c) 2023 IBM Corporation | |
5 | * | |
6 | * Authors: | |
7 | * Stefan Berger <stefanb@linux.ibm.com> | |
8 | * | |
9 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
10 | * See the COPYING file in the top-level directory. | |
11 | */ | |
12 | #ifndef QTEST_ASPEED_H | |
13 | #define QTEST_ASPEED_H | |
14 | ||
15 | #include <stdint.h> | |
16 | ||
17 | #include "libqtest.h" | |
18 | ||
19 | #define AST2600_ASPEED_I2C_BASE_ADDR 0x1e78a000 | |
20 | ||
21 | /* Implements only AST2600 I2C controller */ | |
22 | ||
23 | static inline uint32_t ast2600_i2c_calc_bus_addr(uint8_t bus_num) | |
24 | { | |
25 | return AST2600_ASPEED_I2C_BASE_ADDR + 0x80 + bus_num * 0x80; | |
26 | } | |
27 | ||
28 | uint8_t aspeed_i2c_readb(QTestState *s, | |
29 | uint32_t baseaddr, uint8_t slave_addr, uint8_t reg); | |
30 | uint16_t aspeed_i2c_readw(QTestState *s, | |
31 | uint32_t baseaddr, uint8_t slave_addr, uint8_t reg); | |
32 | uint32_t aspeed_i2c_readl(QTestState *s, | |
33 | uint32_t baseaddr, uint8_t slave_addr, uint8_t reg); | |
34 | void aspeed_i2c_writeb(QTestState *s, uint32_t baseaddr, uint8_t slave_addr, | |
35 | uint8_t reg, uint8_t v); | |
36 | void aspeed_i2c_writew(QTestState *s, uint32_t baseaddr, uint8_t slave_addr, | |
37 | uint8_t reg, uint16_t v); | |
38 | void aspeed_i2c_writel(QTestState *s, uint32_t baseaddr, uint8_t slave_addr, | |
39 | uint8_t reg, uint32_t v); | |
40 | ||
41 | #endif |