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rockbox/firmware/target/arm/imx31/gigabeat-s
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Michael Sevakis a36a498c57 i.MX31/Gigabeat S: This should fix stability problems. One problem was to start using the DVFS controller properly so that interrupts will be masked at the lowest and highest frequency indexes. Millions of useless interrupts were occurring at 132MHz because its index was 2, not 3, which masks it automatically when it can't go slower. Stopping the flood was enough to actually see the difference in general. IRQ must be disabled when fiddling with the CCM registers and only enabled when waiting for voltage ramp as having them enables also causes spurious DVFS ints. Implement interruptible ISR pro/epilogue more safely (always using IRQ stack even in SVC mode handling). Fix an improper inequality in DVFS code (which set regs for down when going up and v.v.). Misc. support changes. Have internal tables take less RAM. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25837 a1c6a512-1295-4272-9138-f99709370657
2010-05-06 03:23:51 +00:00
..
adc-gigabeat-s.c i.MX31/Gigabeat S: Actually enable DPTC which can set optimal voltage for 528MHz. Requires an SPI and PMIC interface rework because of the low-latency needs for the DPTC to work best with minimal panicing. SPI can work with multitasking and asynchronously from interrupt handlers or normal code. 2010-05-04 10:07:53 +00:00
adc-target.h
audio-gigabeat-s.c
backlight-gigabeat-s.c i.MX31/Gigabeat S: Actually enable DPTC which can set optimal voltage for 528MHz. Requires an SPI and PMIC interface rework because of the low-latency needs for the DPTC to work best with minimal panicing. SPI can work with multitasking and asynchronously from interrupt handlers or normal code. 2010-05-04 10:07:53 +00:00
backlight-target.h
button-gigabeat-s.c Gigabeat S/i.MX31: Sort files in the /target tree into things that are SoC-generic (into /imx31) and player-specific (into /gigabeat-s, based upon current appearances). Move i2s clock init into the appropriate file. Housekeeping only-- no functional changes. 2010-04-09 01:21:53 +00:00
button-target.h Remove some unused declarations 2009-05-21 12:32:26 +00:00
dvfs_dptc_tables-target.h i.MX31/Gigabeat S: This should fix stability problems. One problem was to start using the DVFS controller properly so that interrupts will be masked at the lowest and highest frequency indexes. Millions of useless interrupts were occurring at 132MHz because its index was 2, not 3, which masks it automatically when it can't go slower. Stopping the flood was enough to actually see the difference in general. IRQ must be disabled when fiddling with the CCM registers and only enabled when waiting for voltage ramp as having them enables also causes spurious DVFS ints. Implement interruptible ISR pro/epilogue more safely (always using IRQ stack even in SVC mode handling). Fix an improper inequality in DVFS code (which set regs for down when going up and v.v.). Misc. support changes. Have internal tables take less RAM. 2010-05-06 03:23:51 +00:00
fmradio-i2c-gigabeat-s.c i.MX31: Add some enums and a couple helper functions to make dealing with pin muxing and pad configuration a bit more sane. Convert any existing code which changes mux/pad settings to use helpers. 2010-04-23 13:46:04 +00:00
gpio-gigabeat-s.c
gpio-target.h
headphone-gigabeat-s.c Increase stack space for the Gigabeat S specific headphone thread to fix stack overflow when compiled with gcc 4.4 2009-11-20 16:42:07 +00:00
i2s-gigabeat-s.c Gigabeat S/i.MX31: Sort files in the /target tree into things that are SoC-generic (into /imx31) and player-specific (into /gigabeat-s, based upon current appearances). Move i2s clock init into the appropriate file. Housekeeping only-- no functional changes. 2010-04-09 01:21:53 +00:00
kernel-gigabeat-s.c i.MX31/Gigabeat S: Implement frequency and voltage scaling-- 1.6V for 528MHz, and 1.35V for 264MHz and 132MHz. Keep DPTC overdrive ( > 400MHz) voltage scaling off for now because of uncertainties. Simplify the (working) mess later. 2010-04-23 15:32:50 +00:00
lcd-gigabeat-s.c Gigabeat S/i.MX31: Sort files in the /target tree into things that are SoC-generic (into /imx31) and player-specific (into /gigabeat-s, based upon current appearances). Move i2s clock init into the appropriate file. Housekeeping only-- no functional changes. 2010-04-09 01:21:53 +00:00
lcd-target.h
mc13783-gigabeat-s.c Gigabeat S/i.MX31: Continue, and most likely complete, the platform/player-specific code/data shuffling begun in r25547. 2010-04-10 09:24:06 +00:00
mc13783-target.h
pcm-gigabeat-s.c Gigabeat S/i.MX31: Sort files in the /target tree into things that are SoC-generic (into /imx31) and player-specific (into /gigabeat-s, based upon current appearances). Move i2s clock init into the appropriate file. Housekeeping only-- no functional changes. 2010-04-09 01:21:53 +00:00
power-gigabeat-s.c i.MX31/Gigabeat S: Implement frequency and voltage scaling-- 1.6V for 528MHz, and 1.35V for 264MHz and 132MHz. Keep DPTC overdrive ( > 400MHz) voltage scaling off for now because of uncertainties. Simplify the (working) mess later. 2010-04-23 15:32:50 +00:00
power-gigabeat-s.h Gigabeat S/i.MX31: Sort files in the /target tree into things that are SoC-generic (into /imx31) and player-specific (into /gigabeat-s, based upon current appearances). Move i2s clock init into the appropriate file. Housekeeping only-- no functional changes. 2010-04-09 01:21:53 +00:00
powermgmt-gigabeat-s.c Gigabeat S: Employ more accurate battery charging curve. 2010-04-13 04:57:35 +00:00
powermgmt-target.h Gigabeat S: Add some sanity checks for a strange charging anomaly that I have personally witnessed twice-- no, I don't have photos or a YT video but it did happen. Details are given in a comment in powermgmt-imx31.c. If it happens again, the checks may serve to reveal the true cause. 2010-04-07 19:59:26 +00:00
system-gigabeat-s.c i.MX31/Gigabeat S: Implement frequency and voltage scaling-- 1.6V for 528MHz, and 1.35V for 264MHz and 132MHz. Keep DPTC overdrive ( > 400MHz) voltage scaling off for now because of uncertainties. Simplify the (working) mess later. 2010-04-23 15:32:50 +00:00
system-target.h i.MX31/Gigabeat S: Implement frequency and voltage scaling-- 1.6V for 528MHz, and 1.35V for 264MHz and 132MHz. Keep DPTC overdrive ( > 400MHz) voltage scaling off for now because of uncertainties. Simplify the (working) mess later. 2010-04-23 15:32:50 +00:00
timer-gigabeat-s.c Gigabeat S/i.MX31: Sort files in the /target tree into things that are SoC-generic (into /imx31) and player-specific (into /gigabeat-s, based upon current appearances). Move i2s clock init into the appropriate file. Housekeeping only-- no functional changes. 2010-04-09 01:21:53 +00:00
usb-gigabeat-s.c Gigabeat S/i.MX31: Sort files in the /target tree into things that are SoC-generic (into /imx31) and player-specific (into /gigabeat-s, based upon current appearances). Move i2s clock init into the appropriate file. Housekeeping only-- no functional changes. 2010-04-09 01:21:53 +00:00
usb-target.h Remove some unused declarations 2009-05-21 12:32:26 +00:00
wmcodec-gigabeat-s.c Gigabeat S/i.MX31: Sort files in the /target tree into things that are SoC-generic (into /imx31) and player-specific (into /gigabeat-s, based upon current appearances). Move i2s clock init into the appropriate file. Housekeeping only-- no functional changes. 2010-04-09 01:21:53 +00:00