Commit graph

8 commits

Author SHA1 Message Date
Rafaël Carré
f504153857 FS#10048 : enable MMU and data cache on Sansa AMS to give a major speed up
- cache IRAM and DRAM
- map IRAM just next to DRAM to remove the need for -mlong-calls and reduce binsize
- tweak delays in Fuze button code
- tweak delays in Clip button code (down button sometimes doesn't respond anyway : an alternate driver is being worked on)

Before reporting any problem, please check your filesystem or format your player from the OF

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21228 a1c6a512-1295-4272-9138-f99709370657
2009-06-08 23:05:33 +00:00
Thomas Martitz
4633446517 Sansa AMS: Centralise mapping of RAM and IRAM in as3525.h via #defines. This will hopefully make ongoing mmu work easier as less places need to be changed.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21000 a1c6a512-1295-4272-9138-f99709370657
2009-05-20 21:09:53 +00:00
Thomas Martitz
bac611868e FS#10114 - Sansa AMS : use IRAM for codecs on >2MB targets Rafaël Carré
Activates IRAM for AMS Sansas to be used by codecs and core. Fixes Reboot-on-mp3 and gives speed up on codecs using IRAM in general.
I've made a change: the core/codec ratio is 0x20000/0x30000 instead of 0x10000/0x40000, 0x30000 is way more than codecs currently use (0x14000 at max) and the core might need more than 0x10000.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20678 a1c6a512-1295-4272-9138-f99709370657
2009-04-10 17:00:23 +00:00
Rafaël Carré
e3a970f4eb Sansa AMS "High Mem" : fix main binary linking broken by r19342
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19346 a1c6a512-1295-4272-9138-f99709370657
2008-12-04 23:03:05 +00:00
Rafaël Carré
6aa807d321 Sansa AMS: PCM driver (FS#9592)
Note that on low memory targets (Clip/m200v4 tested) you will encounter
random crashes. Applying FS#9332 seems to help a lot.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19342 a1c6a512-1295-4272-9138-f99709370657
2008-12-04 22:27:48 +00:00
Rafaël Carré
c9ba3adf0d Sansa AMS: do not load stack and bss inside the rockbox binary (FS#9593)
Define _loadaddress to fix RAM usage reported by mkinfo.pl

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19278 a1c6a512-1295-4272-9138-f99709370657
2008-12-01 03:54:27 +00:00
Rafaël Carré
678b6d02ac Sansa AMS: Use IRAM (in app linker script and crt0.S)
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19137 a1c6a512-1295-4272-9138-f99709370657
2008-11-18 17:15:56 +00:00
Rafaël Carré
aef27e1f0c Sansav2 Bootloader
Adds read-only SD driver, largely copied from ata-sd-pp.c
Only tested on the embedded SD, on the Clip
First steps to build a Normal firmware

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19045 a1c6a512-1295-4272-9138-f99709370657
2008-11-09 06:17:21 +00:00