1 Freescale MPC8641HPCN board
2 ===========================
4 Created 05/24/2006 Haiying Wang
5 -------------------------------
9 The 86xx HPCN code base is known to compile using:
10 Binutils 2.15, Gcc 3.4.3, Glibc 2.3.3
12 $ make MPC8641HPCN_config
13 Configuring for MPC8641HPCN board...
18 2. Switch and Jumper Setting
19 ----------------------------
21 J14 Pins 1-2 (near plcc32 socket)
24 SW1(1-5) = 01100 CONFIG_SYS_COREPLL = 01000 :: CORE = 2:1
30 SW1(6-8) = 001 CONFIG_SYS_SYSCLK = 000 :: SYSCLK = 33MHz
33 SW2(1-4) = 1100 CONFIG_SYS_CCBPLL = 0010 :: 2X
41 SW2(5-8) = 1110 CONFIG_SYS_BOOTLOC = 1110 :: boot 16-bit localbus
43 SW3(1-7) = 0011000 CONFIG_SYS_VID = 0011000 :: VCORE = 1.2V
44 0100000 :: VCORE = 1.11V
45 SW3(8) = 0 VCC_PLAT = 0 :: VCC_PLAT = 1.2V
48 SW4(1-2) = 11 CONFIG_SYS_HOSTMODE = 11 :: both prots host/root
49 SW4(3-4) = 11 CONFIG_SYS_BOOTSEQ = 11 :: no boot seq
50 SW4(5-8) = 0011 CONFIG_SYS_IOPORT = 0011 :: both PEX
52 SW5(1) = 1 CONFIG_SYS_FLASHMAP = 1 :: boot from flash
53 0 :: boot from PromJet
54 SW5(2) = 1 CONFIG_SYS_FLASHBANK = 1 :: swap upper/lower
55 halves (virtual banks)
57 SW5(3) = 0 CONFIG_SYS_FLASHWP = 0 :: not protected
58 SW5(4) = 0 CONFIG_SYS_PORTDIV = 1 :: 2:1 for PD4
60 SW5(5-6) = 11 CONFIG_SYS_PIXISOPT = 11 :: s/w determined
61 SW5(7-8) = 11 CONFIG_SYS_LADOPT = 11 :: s/w determined
63 SW6(1) = 1 CONFIG_SYS_CPUBOOT = 1 :: no boot holdoff
64 SW6(2) = 1 CONFIG_SYS_BOOTADDR = 1 :: no traslation
65 SW6(3-5) = 000 CONFIG_SYS_REFCLKSEL = 000 :: 100MHZ
66 SW6(6) = 1 CONFIG_SYS_SERROM_ADDR= 1 ::
67 SW6(7) = 1 CONFIG_SYS_MEMDEBUG = 1 ::
68 SW6(8) = 1 CONFIG_SYS_DDRDEBUG = 1 ::
70 SW8(1) = 1 ACZ_SYNC = 1 :: 48MHz on TP49
71 SW8(2) = 1 ACB_SYNC = 1 :: THRMTRIP disabled
72 SW8(3) = 1 ACZ_SDOUT = 1 :: p4 mode
73 SW8(4) = 1 ACB_SDOUT = 1 :: PATA freq. = 133MHz
74 SW8(5) = 0 SUSLED = 0 :: SouthBridge Mode
75 SW8(6) = 0 SPREAD = 0 :: REFCLK SSCG Disabled
76 SW8(7) = 1 ACPWR = 1 :: non-battery
77 SW8(8) = 0 CONFIG_SYS_IDWP = 0 :: write enable
82 The flash range 0xFF800000 to 0xFFFFFFFF can be divided into 2 halves.
83 It is possible to use either half to boot using u-boot. Switch 5 bit 2
84 is used for this purpose.
86 0xFF800000 to 0xFFBFFFFF - 4MB
87 0xFFC00000 to 0xFFFFFFFF - 4MB
88 When this bit is 0, U-Boot is at 0xFFF00000.
89 When this bit is 1, U-Boot is at 0xFFB00000.
91 Use the above mentioned flash commands to program the other half, and
92 use switch 5, bit 2 to alternate between the halves. Note: The booting
93 version of U-Boot will always be at 0xFFF00000.
95 To Flash U-Boot into the booting bank (0xFFC00000 - 0xFFFFFFFF):
97 tftp 1000000 u-boot.bin
99 erase fff00000 +$filesize
100 cp.b 1000000 fff00000 $filesize
102 or use tftpflash command:
105 To Flash U-boot into the alternative bank (0xFF800000 - 0xFFBFFFFF):
107 tftp 1000000 u-boot.bin
108 erase ffb00000 +$filesize
109 cp.b 1000000 ffb00000 $filesize
115 Memory Range Device Size
116 ------------ ------ ----
117 0x0000_0000 0x7fff_ffff DDR 2G
118 0x8000_0000 0x9fff_ffff PCI1/PEX1 MEM 512M
119 0xa000_0000 0xafff_ffff PCI2/PEX2 MEM 512M
120 0xf800_0000 0xf80f_ffff CCSR 1M
121 0xf810_0000 0xf81f_ffff PIXIS 1M
122 0xf840_0000 0xf840_3fff Stack space 32K
123 0xe200_0000 0xe2ff_ffff PCI1/PEX1 IO 16M
124 0xe300_0000 0xe3ff_ffff PCI2/PEX2 IO 16M
125 0xfe00_0000 0xfeff_ffff Flash(alternate)16M
126 0xff00_0000 0xffff_ffff Flash(boot bank)16M
128 5. pixis_reset command
130 A new command, "pixis_reset", is introduced to reset mpc8641hpcn board
131 using the FPGA sequencer. When the board restarts, it has the option
132 of using either the current or alternate flash bank as the boot
133 image, with or without the watchdog timer enabled, and finally with
134 or without frequency changes.
140 pixis_reset altbank wd
141 pixis_reset altbank cf <SYSCLK freq> <COREPLL ratio> <MPXPLL ratio>
142 pixis_reset cf <SYSCLK freq> <COREPLL ratio> <MPXPLL ratio>
146 /* reset to current bank, like "reset" command */
149 /* reset board but use the to alternate flash bank */
152 /* reset board, use alternate flash bank with watchdog timer enabled*/
153 pixis_reset altbank wd
155 /* reset board to alternate bank with frequency changed.
156 * 40 is SYSCLK, 2.5 is COREPLL ratio, 10 is MPXPLL ratio
158 pixis-reset altbank cf 40 2.5 10
160 Valid clock choices are in the 8641 Reference Manuals.