mirror of
https://github.com/marqs85/ossc
synced 2025-10-30 23:46:02 +03:00
93 lines
3.2 KiB
Tcl
93 lines
3.2 KiB
Tcl
# flash details
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set flash_base 0x02000000
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set flash_imem_offset 0x00050000
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set flash_imem_base [format 0x%.8x [expr $flash_base + $flash_imem_offset]]
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set flash_secsize 65536
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# flash controller register addresses
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set control_register 0x00020100
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set operating_protocols_setting 0x00020110
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set read_instr 0x00020114
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set write_instr 0x00020118
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set flash_cmd_setting 0x0002011c
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set flash_cmd_ctrl 0x00020120
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set flash_cmd_addr_register 0x00020124
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set flash_cmd_write_data_0 0x00020128
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set flash_cmd_read_data_0 0x00020130
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# target file details
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set bin_file mem_init/flash.bin
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set bin_size [file size $bin_file]
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set num_sectors [expr ($bin_size / $flash_secsize) + (($bin_size % $flash_secsize) ne 0)]
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#Select the master service type and check for available service paths.
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while 1 {
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set service_paths [get_service_paths master]
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if {[llength $service_paths] > 0} {
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break
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}
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puts "Refreshing connections..."
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refresh_connections
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after 100
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}
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#Set the master service path.
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set master_service_path [lindex $service_paths 0]
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#Open the master service.
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set claim_path [claim_service master $master_service_path mylib]
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puts "Halting CPU"
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master_write_32 $claim_path 0x40 0x00000001
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master_write_32 $claim_path 0x40 0x80000001
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#write enable
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master_write_32 $claim_path $flash_cmd_setting 0x00000006
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master_write_32 $claim_path $flash_cmd_ctrl 0x1
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#write status register (clear BP)
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master_write_32 $claim_path $flash_cmd_setting 0x00001001
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#master_write_32 $claim_path $flash_cmd_write_data_0 0x0000005c
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master_write_32 $claim_path $flash_cmd_write_data_0 0x00000000
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master_write_32 $claim_path $flash_cmd_ctrl 0x1
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puts "Erasing $num_sectors flash sectors"
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set addr $flash_imem_offset
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for {set i 0} {$i<$num_sectors} {incr i} {
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master_write_32 $claim_path $flash_cmd_setting 0x00000006
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master_write_32 $claim_path $flash_cmd_ctrl 0x1
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master_write_32 $claim_path $flash_cmd_setting 0x000003D8
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master_write_32 $claim_path $flash_cmd_addr_register $addr
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master_write_32 $claim_path $flash_cmd_ctrl 0x1
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set addr [expr $addr + $flash_secsize]
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after 500
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}
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puts "Writing flash"
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# JTAG to Avalon master does not support sink backpressure
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#master_write_from_file $claim_path mem_init/flash.bin $flash_imem_base
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# work around lack of backpressure support by writing chunks of master FIFO size
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set chunks [llength [glob mem_init/chunks/*]]
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puts "Programming $chunks chunks"
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set addr $flash_imem_base
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for {set i 0} {$i<$chunks} {incr i} {
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set file [format "flash.%04d" $i]
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master_write_from_file $claim_path mem_init/chunks/$file $addr
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set addr [expr $addr + 1024]
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}
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#master_read_to_file $claim_path mem_init/flash_readback.bin $flash_imem_base $bin_size
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#master_read_to_file $claim_path mem_init/ram_readback.bin 0x010000 65536
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# flush flashctrl cmd fifo to ensure writes have finished
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master_read_32 $claim_path $flash_base 1
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puts "Resetting system"
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master_write_32 $claim_path 0x40 0x00000003
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after 1
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master_write_32 $claim_path 0x40 0x00000001
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master_write_32 $claim_path 0x40 0x00000000
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close_service master $claim_path
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puts "Done"
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