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  /*
   * (C) Copyright 2007 DENX Software Engineering
   *
   * Author: Bartlomiej Sieka <tur@semihalf.com>
   * Author: Grzegorz Bernacki <gjb@semihalf.com>
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #ifndef _CM5200_H
  #define _CM5200_H
  
  
  /*
   * Definitions and declarations for the modules of the cm5200 platform. Mostly
   * related to reading the hardware identification data (HW ID) from the I2C
   * EEPROM, detection of the particular module we are executing on, and
   * appropriate SDRAM controller initialization.
   */
  
  
  #define CM5200_UNKNOWN_MODULE	0xffffffff
  
  enum {
  	DEVICE_NAME,		/* 0 */
  	GENERATION,		/* 1 */
  	PCB_NAME,		/* 2 */
  	FORM,			/* 3 */
  	VERSION,		/* 4 */
  	IDENTIFICATION_NUMBER,	/* 5 */
  	MAJOR_SW_VERSION,	/* 6 */
  	MINOR_SW_VERSION,	/* 7 */
  	/* add new alements above this line */
  	HW_ID_ELEM_COUNT	/* count */
  };
  
  /*
   * Sect. 4.1 "CM1.Q/CMU1.Q Supervisory Microcontroller Interface Definition"
   */
  
  #define DEVICE_NAME_OFFSET		0x02
  #define GENERATION_OFFSET		0x0b
  #define PCB_NAME_OFFSET			0x0c
  #define FORM_OFFSET			0x15
  #define VERSION_OFFSET			0x16
  #define IDENTIFICATION_NUMBER_OFFSET	0x19
  #define MAJOR_SW_VERSION_OFFSET		0x0480
  #define MINOR_SW_VERSION_OFFSET		0x0481
  
  
  #define DEVICE_NAME_LEN			0x09
  #define GENERATION_LEN			0x01
  #define PCB_NAME_LEN			0x09
  #define FORM_LEN			0x01
  #define VERSION_LEN			0x03
  #define IDENTIFICATION_NUMBER_LEN	0x09
  #define MAJOR_SW_VERSION_LEN		0x01
  #define MINOR_SW_VERSION_LEN		0x01
  
  #define HW_ID_ELEM_MAXLEN		0x09	/* MAX(XXX_LEN) */
  
  /* entire HW ID in EEPROM is 64 bytes, so longer module name is unlikely */
  #define MODULE_NAME_MAXLEN		64
  
  
  /* storage for HW ID read from EEPROM */
  typedef char hw_id_t[HW_ID_ELEM_COUNT][HW_ID_ELEM_MAXLEN];
  
  
  /* HW ID layout in EEPROM */
  static struct {
  	unsigned int offset;
  	unsigned int length;
  } hw_id_format[HW_ID_ELEM_COUNT] = {
  	{DEVICE_NAME_OFFSET,		DEVICE_NAME_LEN},
  	{GENERATION_OFFSET,		GENERATION_LEN},
  	{PCB_NAME_OFFSET,		PCB_NAME_LEN},
  	{FORM_OFFSET,			FORM_LEN},
  	{VERSION_OFFSET,		VERSION_LEN},
  	{IDENTIFICATION_NUMBER_OFFSET,	IDENTIFICATION_NUMBER_LEN},
  	{MAJOR_SW_VERSION_OFFSET,	MAJOR_SW_VERSION_LEN},
  	{MINOR_SW_VERSION_OFFSET,	MINOR_SW_VERSION_LEN},
  };
  
  
  /* HW ID data found in EEPROM on supported modules */
  static char *cm1_qa_hw_id[HW_ID_ELEM_COUNT] = {
  	"CM",		/* DEVICE_NAME */
  	"1",		/* GENERATION */
  	"CM1",		/* PCB_NAME */
  	"Q",		/* FORM */
  	"A",		/* VERSION */
  	"591881",	/* IDENTIFICATION_NUMBER */
  	"",		/* MAJOR_SW_VERSION */
  	"",		/* MINOR_SW_VERSION */
  };
  
  static char *cm11_qa_hw_id[HW_ID_ELEM_COUNT] = {
  	"CM",		/* DEVICE_NAME */
  	"1",		/* GENERATION */
  	"CM11",		/* PCB_NAME */
  	"Q",		/* FORM */
  	"A",		/* VERSION */
  	"594200",	/* IDENTIFICATION_NUMBER */
  	"",		/* MAJOR_SW_VERSION */
  	"",		/* MINOR_SW_VERSION */
  };
  
  static char *cmu1_qa_hw_id[HW_ID_ELEM_COUNT] = {
  	"CMU",		/* DEVICE_NAME */
  	"1",		/* GENERATION */
  	"CMU1",		/* PCB_NAME */
  	"Q",		/* FORM */
  	"A",		/* VERSION */
  	"594128",	/* IDENTIFICATION_NUMBER */
  	"",		/* MAJOR_SW_VERSION */
  	"",		/* MINOR_SW_VERSION */
  };
  
  
  /* list of known modules */
  static char **hw_id_list[] = {
  	cm1_qa_hw_id,
  	cm11_qa_hw_id,
  	cmu1_qa_hw_id,
  };
  
  /* indices to the above list - keep in sync */
  enum {
  	CM1_QA,
  	CM11_QA,
  	CMU1_QA,
  };
  
  
  /* identify modules based on these hw id elements */
  static int hw_id_identify[] = {
  	PCB_NAME,
  	FORM,
  	VERSION,
  };
  
  
  /* Registers' settings for SDRAM controller intialization */
  typedef struct {
  	ulong mode;
  	ulong control;
  	ulong config1;
  	ulong config2;
  } mem_conf_t;
  
  static mem_conf_t k4s561632E = {
  	0x00CD0000,      /* CASL 3, burst length 8 */
  	0x514F0000,
  	0xE2333900,
  	0x8EE70000
  };
  
  static mem_conf_t mt48lc32m16a2 = {
  	0x00CD0000,      /* CASL 3, burst length 8 */
  	0x514F0000,
  	0xD2322800,
  	0x8AD70000
  };
  
  static mem_conf_t* memory_config[] = {
  	&k4s561632E,
  	&mt48lc32m16a2
  };
  
  #endif /* _CM5200_H */