TQ-Systems TQMa6x, User Manual

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User's Manual l TQMa6x & TQMa6xP UM 0403 l © 2019, TQ-Systems GmbH Page 8
3.2.1.5 Boot configuration
Note: Boot configuration
No boot device is preset when the TQMa6x is delivered.
Some general settings are defined by eFuses independent from the boot device.
Table 4: General boot settings
i.MX6 TQMa6x
eFuse Option Setting
3
Signal Pin
BOOT_CFG1[7:0]
Boot configuration 1:
Specific to selected boot mode
– BOOT_CFG1_7:0 –
BOOT_CFG2[7:0]
Boot configuration 2:
Specific to selected boot mode
– BOOT_CFG2_7:0 –
BOOT_CFG3[7]
L1 I-Cache DISABLE:
0 = Enabled
1 = Disabled
0 BOOT_CFG3_7 X2-97
BOOT_CFG3[6]
BT_MMU_DISABLE:
0 = MMU / L1 D Cache / PL310 enabled
1 = MMU / L1 D Cache / PL310 disabled
0 BOOT_CFG3_6 X2-98
BOOT_CFG3[5]
DDR Memory Map Config:
00 = Single DDR channel
01 = 2 × 32 Map
10 = 4 KB interleaving
11 = Reserved (Solo / DualLite / Dual / Quad)
11 = Extension Mode (DualPlus / QuadPlus)
(see BOOT_CFG3[1:0])
0 BOOT_CFG3_5 X2-99
BOOT_CFG3[4] 0 BOOT_CFG3_4 X2-100
BOOT_CFG3[3] Reserved 0 BOOT_CFG3_3 X2-101
BOOT_CFG3[2]
Boot Frequencies ARM / DDR / AXI:
Solo / DualLite:
0 = 792 / 396 / 264 MHz
1 = 396 / 352 / 176 MHz
Dual / Quad / DualPlus / QuadPlus:
0 = 792 / 528 / 264 MHz
1 = 396 / 352 / 176 MHz
0 BOOT_CFG3_2 X2-102
BOOT_CFG3[1]
DDR Memory Map Extension Config:
4
Quad-Plus/Dual-Plus:
00 = Single DDR Channel / NOC disabled / MMDC reorder enabled
01 = Fixed 2x32 mapping / NOC enabled / MMDC reorder disabled
10 = Reserved
11 = Reserved
Quad/Dual:
Reserved
DualLite/Solo:
Disable SDMMC Manufacture mode:
5
x0 = Enable
x1 = Disable
0 BOOT_CFG3_1 X2-103
BOOT_CFG3[0] 0 BOOT_CFG3_0 X2-104
BOOT_CFG4[7]
Debug loop:
0 = Loop disabled
1 = Loop enabled
0 BOOT_CFG4_7 X2-85
BOOT_CFG4[6:0]
Boot configuration 4:
Specific to selected boot mode
– BOOT_CFG4_6:0 –
3: Voltage level or condition of eFuse.
4: Only valid when BOOT_CFG3[5:4] = 0b11.
5: BOOT_CFG3[1] = Reserved