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- # Intel "Lubbock" Development Board with PXA255 (dbpxa255)
- # Obsolete; this was Intel's original PXA255 development system
- # Board also had CPU cards for SA1100, PXA210, PXA250, and more.
-
- source [find target/pxa255.cfg]
-
- jtag_nsrst_delay 250
- jtag_ntrst_delay 250
-
- # NOTE: until after pinmux and such are set up, only CS0 is
- # available ... not 2nd bank of CFI, or FPGA, SRAM, ENET, etc.
-
- # CS0, CS1 -- two banks of CFI flash, 32 MBytes each
- # each bank is 32-bits wide, two 16-bit chips in parallel
- set _FLASHNAME $_CHIPNAME.flash
- flash bank $_FLASHNAME cfi 0x00000000 0x02000000 2 4 $_TARGETNAME
- set _FLASHNAME $_CHIPNAME.flash
- flash bank $_FLASHNAME cfi 0x04000000 0x02000000 2 4 $_TARGETNAME
-
- # CS2 low -- FPGA registers
- # CS2 high -- 1 MByte SRAM at 0x0a00.0000 ... last 64K for scratch
- $_TARGETNAME configure -work-area-phys 0x0a0f0000
-
- $_TARGETNAME configure -event reset-assert-pre \
- "$_TARGETNAME configure -work-area-size 0"
-
- # Make the hex led display a number, assuming CS2 is set up
- # and all digits have been enabled through the FPGA.
- proc hexled {u32} {
- mww 0x08000010 $u32
- }
-
- # CS3 -- Ethernet
- # CS4 -- SA1111
- # CS5 -- PCMCIA
-
- # NOTE: system console normally uses the FF UART connector
-
- proc lubbock_init {target} {
-
- puts "Initialize PXA255 Lubbock board"
-
- # (1) pinmux
-
- # GPSR0..GPSR2
- mww 0x40e00018 0x00008000
- mww 0x40e0001c 0x00FC0382
- mww 0x40e00020 0x0001FFFF
- # GPDR0..GPDR2
- mww 0x40e0000c 0x0060A800
- mww 0x40e00010 0x00FF0382
- mww 0x40e00014 0x0001C000
- # GAFR0_[LU]..GAFR2_[LU]
- mww 0x40e00054 0x98400000
- mww 0x40e00058 0x00002950
- mww 0x40e0005c 0x000A9558
- mww 0x40e00060 0x0005AAAA
- mww 0x40e00064 0xA0000000
- mww 0x40e00068 0x00000002
-
- # write PSSR, enable GPIOs
- mww 0x40f00000 0x00000020
-
- # write LED ctrl register ... ones disable
- # high byte, 8 hex leds; low byte, 8 discretes
- mwh 0x08000040 0xf0ff
-
- hexled 0x0000
-
- # (2) Address space setup
-
- # MSC0/MSC1/MSC2
- mww 0x48000008 0x23f223f2
- mww 0x4800000c 0x3ff1a441
- mww 0x48000010 0x7ff97ff1
- # pcmcia/cf
- mww 0x48000014 0x00000000
- mww 0x48000028 0x00010504
- mww 0x4800002c 0x00010504
- mww 0x48000030 0x00010504
- mww 0x48000034 0x00010504
- mww 0x48000038 0x00004715
- mww 0x4800003c 0x00004715
-
- hexled 0x1111
-
- # (3) SDRAM setup
- # REVISIT this looks dubious ... no refresh cycles
- mww 0x48000004 0x03CA4018
- mww 0x48000004 0x004B4018
- mww 0x48000004 0x000B4018
- mww 0x48000004 0x000BC018
- mww 0x48000000 0x00001AC8
- mww 0x48000000 0x00001AC9
-
- mww 0x48000040 0x00000000
-
- # FIXME -- setup:
- # CLOCKS (and faster JTAG)
- # enable icache
-
- # FIXME SRAM isn't working
- # $target configure -work-area-size 0x10000
-
- hexled 0x2222
-
- flash probe 0
- flash probe 1
-
- hexled 0xcafe
- }
- $_TARGETNAME configure -event reset-init "lubbock_init $_TARGETNAME"
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