1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
/** @file
*
* Copyright (c) 2011, ARM Limited. All rights reserved.
*
* This program and the accompanying materials
* are licensed and made available under the terms and conditions of the BSD License
* which accompanies this distribution. The full text of the license may be found at
* http://opensource.org/licenses/bsd-license.php
*
* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
*
**/
#include <Uefi.h>
#include <Library/IoLib.h>
#include <Library/DebugLib.h>
#include <Drivers/PL341Dmc.h>
// Macros for writing to DDR2 controller.
#define DmcWriteReg(reg,val) MmioWrite32(DmcBase + reg, val)
#define DmcReadReg(reg) MmioRead32(DmcBase + reg)
// Macros for writing/reading to DDR2 PHY controller
#define DmcPhyWriteReg(reg,val) MmioWrite32(DmcPhyBase + reg, val)
#define DmcPhyReadReg(reg) MmioRead32(DmcPhyBase + reg)
// Initialise PL341 Dynamic Memory Controller
VOID
PL341DmcInit (
IN UINTN DmcBase,
IN PL341_DMC_CONFIG* DmcConfig
)
{
UINTN Index;
UINT32 Chip;
// Set config mode
DmcWriteReg(DMC_COMMAND_REG, DMC_COMMAND_CONFIGURE);
//
// Setup the QoS AXI ID bits
//
if (DmcConfig->HasQos) {
// CLCD AXIID = 000
DmcWriteReg(DMC_ID_0_CFG_REG, DMC_ID_CFG_QOS_ENABLE | DMC_ID_CFG_QOS_MIN);
// Default disable QoS
DmcWriteReg(DMC_ID_1_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
DmcWriteReg(DMC_ID_2_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
DmcWriteReg(DMC_ID_3_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
DmcWriteReg(DMC_ID_4_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
DmcWriteReg(DMC_ID_5_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
DmcWriteReg(DMC_ID_6_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
DmcWriteReg(DMC_ID_7_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
DmcWriteReg(DMC_ID_8_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
DmcWriteReg(DMC_ID_9_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
DmcWriteReg(DMC_ID_10_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
DmcWriteReg(DMC_ID_11_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
DmcWriteReg(DMC_ID_12_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
DmcWriteReg(DMC_ID_13_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
DmcWriteReg(DMC_ID_14_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
DmcWriteReg(DMC_ID_15_CFG_REG, DMC_ID_CFG_QOS_DISABLE);
}
//
// Initialise memory controlller
//
DmcWriteReg(DMC_REFRESH_PRD_REG, DmcConfig->RefreshPeriod);
DmcWriteReg(DMC_CAS_LATENCY_REG, DmcConfig->CasLatency);
DmcWriteReg(DMC_WRITE_LATENCY_REG, DmcConfig->WriteLatency);
DmcWriteReg(DMC_T_MRD_REG, DmcConfig->t_mrd);
DmcWriteReg(DMC_T_RAS_REG, DmcConfig->t_ras);
DmcWriteReg(DMC_T_RC_REG, DmcConfig->t_rc);
DmcWriteReg(DMC_T_RCD_REG, DmcConfig->t_rcd);
DmcWriteReg(DMC_T_RFC_REG, DmcConfig->t_rfc);
DmcWriteReg(DMC_T_RP_REG, DmcConfig->t_rp);
DmcWriteReg(DMC_T_RRD_REG, DmcConfig->t_rrd);
DmcWriteReg(DMC_T_WR_REG, DmcConfig->t_wr);
DmcWriteReg(DMC_T_WTR_REG, DmcConfig->t_wtr);
DmcWriteReg(DMC_T_XP_REG, DmcConfig->t_xp);
DmcWriteReg(DMC_T_XSR_REG, DmcConfig->t_xsr);
DmcWriteReg(DMC_T_ESR_REG, DmcConfig->t_esr);
DmcWriteReg(DMC_T_FAW_REG, DmcConfig->t_faw);
DmcWriteReg(DMC_T_WRLAT_DIFF, DmcConfig->t_wdata_en);
DmcWriteReg(DMC_T_RDATA_EN, DmcConfig->t_data_en);
//
// Initialise PL341 Mem Config Registers
//
// Set PL341 Memory Config
DmcWriteReg(DMC_MEMORY_CONFIG_REG, DmcConfig->MemoryCfg);
// Set PL341 Memory Config 2
DmcWriteReg(DMC_MEMORY_CFG2_REG, DmcConfig->MemoryCfg2);
// Set PL341 Memory Config 3
DmcWriteReg(DMC_MEMORY_CFG3_REG, DmcConfig->MemoryCfg3);
// Set PL341 Chip Select <n>
DmcWriteReg(DMC_CHIP_0_CFG_REG, DmcConfig->ChipCfg0);
DmcWriteReg(DMC_CHIP_1_CFG_REG, DmcConfig->ChipCfg1);
DmcWriteReg(DMC_CHIP_2_CFG_REG, DmcConfig->ChipCfg2);
DmcWriteReg(DMC_CHIP_3_CFG_REG, DmcConfig->ChipCfg3);
// Delay
for (Index = 0; Index < 10; Index++) {
DmcReadReg(DMC_STATUS_REG);
}
if (DmcConfig->IsUserCfg) {
//
// Set Test Chip PHY Registers via PL341 User Config Reg
// Note that user_cfgX registers are Write Only
//
// DLL Freq set = 250MHz - 266MHz
//
DmcWriteReg(DMC_USER_0_CFG_REG, DmcConfig->User0Cfg);
// user_config2
// ------------
// Set defaults before calibrating the DDR2 buffer impendence
// - Disable ODT
// - Default drive strengths
DmcWriteReg(DMC_USER_2_CFG_REG, 0x40000198);
//
// Auto calibrate the DDR2 buffers impendence
//
while (!(DmcReadReg(DMC_USER_STATUS_REG) & 0x100));
// Set the output driven strength
DmcWriteReg(DMC_USER_2_CFG_REG, 0x40800000 | DmcConfig->User2Cfg);
//
// Set PL341 Feature Control Register
//
// Disable early BRESP - use to optimise CLCD performance
DmcWriteReg(DMC_FEATURE_CRTL_REG, 0x00000001);
}
//
// Config memories
//
for (Chip = 0; Chip < DmcConfig->MaxChip; Chip++) {
// Send nop
DmcWriteReg(DMC_DIRECT_CMD_REG, DMC_DIRECT_CMD_CHIP_ADDR(Chip) | DMC_DIRECT_CMD_MEMCMD_NOP);
// Pre-charge all
DmcWriteReg(DMC_DIRECT_CMD_REG, DMC_DIRECT_CMD_CHIP_ADDR(Chip) | DMC_DIRECT_CMD_MEMCMD_PRECHARGEALL);
// Delay
for (Index = 0; Index < 10; Index++) {
DmcReadReg(DMC_STATUS_REG);
}
// Set (EMR2) extended mode register 2
DmcWriteReg(DMC_DIRECT_CMD_REG,
DMC_DIRECT_CMD_CHIP_ADDR(Chip) |
DMC_DIRECT_CMD_BANKADDR(2) |
DMC_DIRECT_CMD_MEMCMD_EXTMODEREG);
// Set (EMR3) extended mode register 3
DmcWriteReg(DMC_DIRECT_CMD_REG,
DMC_DIRECT_CMD_CHIP_ADDR(Chip) |
DMC_DIRECT_CMD_BANKADDR(3) |
DMC_DIRECT_CMD_MEMCMD_EXTMODEREG);
//
// Set (EMR) Extended Mode Register
//
// Put into OCD default state
DmcWriteReg(DMC_DIRECT_CMD_REG,DMC_DIRECT_CMD_CHIP_ADDR(Chip) | DMC_DIRECT_CMD_BANKADDR(1) | DMC_DIRECT_CMD_MEMCMD_EXTMODEREG);
//
// Set (MR) mode register - With DLL reset
//
DmcWriteReg(DMC_DIRECT_CMD_REG, DMC_DIRECT_CMD_CHIP_ADDR(Chip) | DMC_DIRECT_CMD_MEMCMD_EXTMODEREG | DmcConfig->ModeReg | DDR2_MR_DLL_RESET);
// Pre-charge all
DmcWriteReg(DMC_DIRECT_CMD_REG, DMC_DIRECT_CMD_CHIP_ADDR(Chip) | DMC_DIRECT_CMD_MEMCMD_PRECHARGEALL);
// Auto-refresh
DmcWriteReg(DMC_DIRECT_CMD_REG, DMC_DIRECT_CMD_CHIP_ADDR(Chip) | DMC_DIRECT_CMD_MEMCMD_AUTOREFRESH);
// Auto-refresh
DmcWriteReg(DMC_DIRECT_CMD_REG, DMC_DIRECT_CMD_CHIP_ADDR(Chip) | DMC_DIRECT_CMD_MEMCMD_AUTOREFRESH);
//
// Set (MR) mode register - Without DLL reset
//
DmcWriteReg(DMC_DIRECT_CMD_REG, DMC_DIRECT_CMD_CHIP_ADDR(Chip) | DMC_DIRECT_CMD_MEMCMD_EXTMODEREG | DmcConfig->ModeReg);
// Delay
for (Index = 0; Index < 10; Index++) {
DmcReadReg(DMC_STATUS_REG);
}
//
// Set (EMR) extended mode register - Enable OCD defaults
//
DmcWriteReg(DMC_DIRECT_CMD_REG, DMC_DIRECT_CMD_CHIP_ADDR(Chip) | (0x00090000) |
(1 << DDR_MODESET_SHFT) | (DDR_EMR_OCD_DEFAULT << DDR_EMR_OCD_SHIFT) | DmcConfig->ExtModeReg);
// Delay
for (Index = 0; Index < 10; Index++) {
DmcReadReg(DMC_STATUS_REG);
}
// Set (EMR) extended mode register - OCD Exit
DmcWriteReg(DMC_DIRECT_CMD_REG, DMC_DIRECT_CMD_CHIP_ADDR(Chip) | (0x00090000) |
(1 << DDR_MODESET_SHFT) | (DDR_EMR_OCD_NS << DDR_EMR_OCD_SHIFT) | DmcConfig->ExtModeReg);
// Delay
for (Index = 0; Index < 10; Index++) {
DmcReadReg(DMC_STATUS_REG);
}
}
// Move DDR2 Controller to Ready state by issueing GO command
DmcWriteReg(DMC_COMMAND_REG, DMC_COMMAND_GO);
// wait for ready
while (!(DmcReadReg(DMC_STATUS_REG) & DMC_STATUS_READY));
}
|
