Commit Graph

2 Commits (1ae21b387482f09dacebb9f4a267df85868657d9)

Author SHA1 Message Date
Tim Newsome bbdc28e0f5
Use more idiomatic assembly for flash code. (#410)
Also change the address that we use to link the PIC code, so that if
there is a PIC issue in the future it will show up on hardware I test
against.

Also remove fespi.S, which hasn't been used in a long time.

Change-Id: I667d930b48107a3522d619167c7afc335431b4b6
2019-09-25 11:51:07 -07:00
Tim Newsome c5dee66a71
Redo fespi flash algorithm (#384)
* WIP, rewrite of flash algorithm.

Just put all the flashing logic into the algorithm, instead of using an
intermediate format. This should reduce total data written while
flashing by about 9%, and also makes the code much simpler.

Change-Id: I807e60c8ab4f9f376cceaecdbbd10a2326be1c79

* New algorithm works.

Speeds up Arty flashing another 9%.

wrote 2228224 bytes from file /media/sf_tnewsome/SiFive/arty_images/arty.E21TraceFPGAEvaluationConfig.mcs in 86.784538s (25.074 KiB/s)
verified 2192012 bytes in 6.693336s (319.816 KiB/s)
8.66user 13.03system 1:33.91elapsed 23%CPU (0avgtext+0avgdata 12272maxresident)k

Change-Id: Ie55c5250d667251be141cb32b144bbcf3713fce4

* Fix whitespace.

Change-Id: I338d518fa11a108efb530ffe75a2030619457a0b

* Don't reserve so much stack space.

Also properly check XLEN in riscv_wrapper.S.

Change-Id: Ifa0301f3ea80f648fb8a6d6b6c8bf39f386fe4a6
2019-07-09 10:05:07 -07:00