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COMe-P2020 User Guide
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Table 3-39: 0x300: Default Boot ROM Location Configuration Register
ACTION D7 D6 D5 D4 D3 D2 D1 D0
READ NU NU NU NU cfg_rom_loc[0:3]
WRITENUNUNUNU NU
POWER UP1111111 1
BITFIELD DESCRIPTION
[D3-D0] 0000 PCI Express 1
0001 PCI Express 1
0010 Serial RapidIO 1
0011 Serial RapidIO 2
0100 DDR Controller
0101 PCI Express 3
0110 On-chip boot ROM-SPI configuration
0111 On-chip boot ROM-eSDHC configuration
1000 Local bus FCM-8-bit NAND flash small page
1001 Reserved
1010 Local bus FCM-8-bit NAND flash large page
1011 Reserved
1100 Reserved
1101 Local bus GPCM-8-bit
1110 Local bus GPCM-16-bit ROM
1111 Local bus GPCM-16-bit ROM (default)
Table 3-40: 0x301: Default Host/Agent Configuration Register
ACTION D7 D6 D5 D4 D3 D2 D1 D0
READ NU NU NU NU NU cfg_host_agt[0:2]
WRITENUNUNUNU NU
POWER UP0000011 1
BITFIELD DESCRIPTION
[D0-D2] 000 P2020 acts as an agent on all its PCI Express and SRIO interfaces.
001 P2020 acts as an agent on PCI Express 1 or host on Serial RapidIO 2.
P2020 acts as a host on PCI Express 2/Serial RapidIO 1.P2020 acts as a host on PCI Express 3
010 P2020 acts as a host on PCI Express 1 or agent on Serial RapidIO 2.
P2020 acts as an agent on PCI Express 2/Serial RapidIO 1.
P2020 acts as a host on PCI Express 3
011 P2020 acts as a host on PCI Express 1/Serial RapidIO 2.
P2020 acts as a host on PCI Express 2/Serial RapidIO 1.
P2020 acts as an agent on PCI Express 3
100 P2020 acts as an agent on PCI Express 1/Serial RapidIO 2.
P2020 acts as an agent on PCI Express 2/Serial RapidIO 1.
P2020 acts as a host on PCI Express 3
101 P2020 acts as an agent on PCI Express 1 or host on Serial RapidIO 2.
P2020 acts as a host on PCI Express 2/Serial RapidIO 1.
P2020 acts as an agent on PCI Express
110 P2020 acts as a host on PCI Express 1 or agent on Serial RapidIO 2.
P2020 acts as an agent on PCI Express 2/Serial RapidIO 1.
P2020 acts as an agent on PCI Express
111 P2020 acts as the host processor/root complex for all PCI Express/Serial
RapidIO interfaces.
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