main.c (1ad6364eeb4f578e423081d1748e8a3fdf1ab01d) main.c (34e026f9b1eb3bcffb38e7787c2e6eac0e88ba85)
1/*
1/*
2 * Copyright 2008-2012 Freescale Semiconductor, Inc.
2 * Copyright 2008-2014 Freescale Semiconductor, Inc.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * Version 2 as published by the Free Software Foundation.
7 */
8
9/*
10 * Generic driver for Freescale DDR/DDR2/DDR3 memory controller.

--- 65 unchanged lines hidden (view full) ---

76 [1][0] = SPD_EEPROM_ADDRESS3, /* controller 2 */
77 [1][1] = SPD_EEPROM_ADDRESS4, /* controller 2 */
78 [2][0] = SPD_EEPROM_ADDRESS5, /* controller 3 */
79 [2][1] = SPD_EEPROM_ADDRESS6, /* controller 3 */
80};
81
82#endif
83
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * Version 2 as published by the Free Software Foundation.
7 */
8
9/*
10 * Generic driver for Freescale DDR/DDR2/DDR3 memory controller.

--- 65 unchanged lines hidden (view full) ---

76 [1][0] = SPD_EEPROM_ADDRESS3, /* controller 2 */
77 [1][1] = SPD_EEPROM_ADDRESS4, /* controller 2 */
78 [2][0] = SPD_EEPROM_ADDRESS5, /* controller 3 */
79 [2][1] = SPD_EEPROM_ADDRESS6, /* controller 3 */
80};
81
82#endif
83
84#define SPD_SPA0_ADDRESS 0x36
85#define SPD_SPA1_ADDRESS 0x37
86
84static void __get_spd(generic_spd_eeprom_t *spd, u8 i2c_address)
85{
86 int ret;
87static void __get_spd(generic_spd_eeprom_t *spd, u8 i2c_address)
88{
89 int ret;
90#ifdef CONFIG_SYS_FSL_DDR4
91 uint8_t dummy = 0;
92#endif
87
88 i2c_set_bus_num(CONFIG_SYS_SPD_BUS_NUM);
89
93
94 i2c_set_bus_num(CONFIG_SYS_SPD_BUS_NUM);
95
96#ifdef CONFIG_SYS_FSL_DDR4
97 /*
98 * DDR4 SPD has 384 to 512 bytes
99 * To access the lower 256 bytes, we need to set EE page address to 0
100 * To access the upper 256 bytes, we need to set EE page address to 1
101 * See Jedec standar No. 21-C for detail
102 */
103 i2c_write(SPD_SPA0_ADDRESS, 0, 1, &dummy, 1);
104 ret = i2c_read(i2c_address, 0, 1, (uchar *)spd, 256);
105 if (!ret) {
106 i2c_write(SPD_SPA1_ADDRESS, 0, 1, &dummy, 1);
107 ret = i2c_read(i2c_address, 0, 1,
108 (uchar *)((ulong)spd + 256),
109 min(256, sizeof(generic_spd_eeprom_t) - 256));
110 }
111#else
90 ret = i2c_read(i2c_address, 0, 1, (uchar *)spd,
91 sizeof(generic_spd_eeprom_t));
112 ret = i2c_read(i2c_address, 0, 1, (uchar *)spd,
113 sizeof(generic_spd_eeprom_t));
114#endif
92
93 if (ret) {
94 if (i2c_address ==
95#ifdef SPD_EEPROM_ADDRESS
96 SPD_EEPROM_ADDRESS
97#elif defined(SPD_EEPROM_ADDRESS1)
98 SPD_EEPROM_ADDRESS1
99#endif

--- 638 unchanged lines hidden --- 		115
116 if (ret) {
117 if (i2c_address ==
118#ifdef SPD_EEPROM_ADDRESS
119 SPD_EEPROM_ADDRESS
120#elif defined(SPD_EEPROM_ADDRESS1)
121 SPD_EEPROM_ADDRESS1
122#endif

--- 638 unchanged lines hidden ---