1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * (C) Copyright 2014 Hans de Goede <hdegoede@redhat.com> 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Based on allwinner u-boot sources rsb code which is: 5*4882a593Smuzhiyun * (C) Copyright 2007-2013 6*4882a593Smuzhiyun * Allwinner Technology Co., Ltd. <www.allwinnertech.com> 7*4882a593Smuzhiyun * lixiang <lixiang@allwinnertech.com> 8*4882a593Smuzhiyun * 9*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 10*4882a593Smuzhiyun */ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #ifndef __SUNXI_RSB_H 13*4882a593Smuzhiyun #define __SUNXI_RSB_H 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun #include <common.h> 16*4882a593Smuzhiyun #include <asm/io.h> 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun struct sunxi_rsb_reg { 19*4882a593Smuzhiyun u32 ctrl; /* 0x00 */ 20*4882a593Smuzhiyun u32 ccr; /* 0x04 */ 21*4882a593Smuzhiyun u32 inte; /* 0x08 */ 22*4882a593Smuzhiyun u32 stat; /* 0x0c */ 23*4882a593Smuzhiyun u32 addr; /* 0x10 */ 24*4882a593Smuzhiyun u8 res0[8]; /* 0x14 */ 25*4882a593Smuzhiyun u32 data; /* 0x1c */ 26*4882a593Smuzhiyun u8 res1[4]; /* 0x20 */ 27*4882a593Smuzhiyun u32 lcr; /* 0x24 */ 28*4882a593Smuzhiyun u32 dmcr; /* 0x28 */ 29*4882a593Smuzhiyun u32 cmd; /* 0x2c */ 30*4882a593Smuzhiyun u32 devaddr; /* 0x30 */ 31*4882a593Smuzhiyun }; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun #define RSB_CTRL_SOFT_RST (1 << 0) 34*4882a593Smuzhiyun #define RSB_CTRL_START_TRANS (1 << 7) 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun #define RSB_STAT_TOVER_INT (1 << 0) 37*4882a593Smuzhiyun #define RSB_STAT_TERR_INT (1 << 1) 38*4882a593Smuzhiyun #define RSB_STAT_LBSY_INT (1 << 2) 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun #define RSB_DMCR_DEVICE_MODE_DATA 0x7c3e00 41*4882a593Smuzhiyun #define RSB_DMCR_DEVICE_MODE_START (1 << 31) 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun #define RSB_CMD_BYTE_WRITE 0x4e 44*4882a593Smuzhiyun #define RSB_CMD_BYTE_READ 0x8b 45*4882a593Smuzhiyun #define RSB_CMD_SET_RTSADDR 0xe8 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun #define RSB_DEVADDR_RUNTIME_ADDR(x) ((x) << 16) 48*4882a593Smuzhiyun #define RSB_DEVADDR_DEVICE_ADDR(x) ((x) << 0) 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun int rsb_init(void); 51*4882a593Smuzhiyun int rsb_set_device_address(u16 device_addr, u16 runtime_addr); 52*4882a593Smuzhiyun int rsb_write(const u16 runtime_device_addr, const u8 reg_addr, u8 data); 53*4882a593Smuzhiyun int rsb_read(const u16 runtime_device_addr, const u8 reg_addr, u8 *data); 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun #endif 56