This patch changes all references/assumptions of PCLK to IDE_CLK for the internal pl180 controller.
Lower the AS3525_IDE_FREQ to 50 MHz in order to be able to divide by 2 for 25 MHz on the internal SD card.
Adjust the code in debug-as3525.c to account for the change and the frequencies reported should be correct.
Add some #if defined(HAVE_MULTIDRIVE) conditionals to cut out the code dealing with uSD for the clip.
Isolate the write delay needed for low frequency writes to only run for standard speed uSD cards. That is the only case for an MCICLK at 15.5 MHz.
Internal cards run at 25 MHz, HS uSD at 31 MHz, and standard speed uSD cards at 15.5 MHz.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23929 a1c6a512-1295-4272-9138-f99709370657
Unaligned memory ops will cause a data abort anyway
Make the check for samplerate at buildtime
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23480 a1c6a512-1295-4272-9138-f99709370657
Adjust SD timeouts accordingly.
Adjust code in debug-as3525.c to display correct frequencies on system/debug/View disk info page.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23350 a1c6a512-1295-4272-9138-f99709370657
i2c clock frequency uses pclk as reference, not plla
i2c clock divider is only 10 bits, not 16
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20929 a1c6a512-1295-4272-9138-f99709370657
Inline the 2 uses, and use a preprocessor sanity check for identification frequency
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20924 a1c6a512-1295-4272-9138-f99709370657
Fix CGU_DBOP setting
Set PCLK to the exact frequency (62MHz, not the maximal frequency)
Use a better comment for CLK_DIV macro
Use preprocessor safety checks for clock divider sizes to avoid future mistakes (not for SD_IDENT frequency since that check is handled by mci_set_clock_divider)
Use maximal IDE frequency of 66MHz (like OF), not 90MHz like written in AS3525 datasheet. The IDE chip is somehow linked to internal storage, and a too high frequency could affect the storage driver.
Use the same DBOP frequency of 32MHz for all models (like OF, verified clip, fuze, e200v2 and m200v4), compromise between performance and battery life could be added in the future for each target
Performance increase on Sansa Fuze with DBOP freq. set to 64MHz: +12% fps for lcd_update, +1% fps for yuv
Thanks to daytona955 on the forums for his help
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20923 a1c6a512-1295-4272-9138-f99709370657
Reorder system_init() to initialize peripherals not only in bootloader
Use a 65MHz PCLK (and memclk) which will be needed for realtime decoding
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19330 a1c6a512-1295-4272-9138-f99709370657
