1  /* SPDX-License-Identifier: GPL-2.0-only */
 2  
 3  #ifndef RAMINIT_H
 4  #define RAMINIT_H
 5  
 6  #include <stdint.h>
 7  
 8  #define MAX_DIMM_SOCKETS_PER_CHANNEL 4
 9  #define MAX_NUM_CHANNELS 2
10  #define MAX_DIMM_SOCKETS (MAX_NUM_CHANNELS * MAX_DIMM_SOCKETS_PER_CHANNEL)
11  
12  struct mem_controller {
13  	pci_devfn_t d0, d0f1; // PCI bus/device/fcns of E7501 memory controller
14  
15  	// SMBus addresses of DIMM slots for each channel,
16  	// in order from closest to MCH to furthest away
17  	// 0 == not present
18  	uint16_t channel0[MAX_DIMM_SOCKETS_PER_CHANNEL];
19  	uint16_t channel1[MAX_DIMM_SOCKETS_PER_CHANNEL];
20  };
21  
22  void sdram_initialize(void);
23  
24  #endif /* RAMINIT_H */