The clock structure is identical, and the EMI are the same.
Also fix SSP clock, it was broken on imx233 as well.
Change-Id: I25ec66059b00b1a456ef2f02131d225082536c0a
Because a node ref is at root doesn't make it valid, check that soc is valid
otherwise we return garbage.
Change-Id: I6e5befc959dc670ab39a87484e87af6d90be7726
Running at 130MHz is unsafe since on those targets, we disable memory frequency
scaling because it is unstable. That leads to situation where cpu is running at
64MHz and VDD is at 1.050V. But on STMP3700, the EMI uses the VDD rail instead
of a dedicated VDDMEM rail as on STMP3780. Thus we are essentially running the
EMI at 130MHz at 1.050V when the minimum recommened voltage is 1.2V. This commit
runs the EMI at 64MHz all the time on the ZEN and ZEN X-Fi which will lead to
reduce performance but hopefully increases stability.
Change-Id: Ida6c2ec130b1778973e383d7c44a06a6ca8f9268
This feature was never used and it is not even working because weak linking
doesn't work in-between files in a library.
Change-Id: I389ea5f17be1d9db0e2150828d704be5a091e09d
This is a quick patch to solve FS#13104, we can not disable the
clickwheel LDO from within interrupt code, so for the moment we
leave it enabled all the time, it is unknown how power comsumption
is affected when the hold switch is locked.
Change-Id: I8f675702e2b5becbcd9197c8b044e6b8daeea79f
Unlike the current code, it does no looping to count days or do
table lookups, which means running time doesn't increase with year
or month. A good thing if it's call a lot, especially if the
algorithm were asked to compute dates centuries or more from the
epoch start.
As a bonus, handles negative time values.
Change-Id: I198a23daf621e40623e6b44dacf2387078b4db9c
It is possible to have a thread awoken and subsequently the message
that was placed in the queue has been removed by the time the thread
is able to check the queue. Ensure theads that failed to find a
message do not return prematurely.
It was at worst imprecise when a timeout is specified. It's entirely
incorrect if the function ever returns with SYS_TIMEOUT when using
TIMEOUT_BLOCK.
Change-Id: Ibd41eae8c787adf7a320a24603cf64ff8a6da66a
Chessbox was overflowing GameList[240] causing the board to flip + crash
GameCnt changed to unsigned char which allows the array to roll over
to 0 after 255
define MAX_GAME_CNT 256 and GameList[MAX_GAME_CNT] along with 1 byte GameCnt
should fix this issue
dbg save routine left in for now to help identify any other problems
Added bounds checking to prevent second bug found when loading .pgn files
Change-Id: I2b615c8ecbed4368724412f80ce07346f3cf30a7
Somewhere along the line the screen stopped being cleared prior to
writing new text on each frame, which left visible bits of
previously-displayed text when it changed.
Change-Id: I344e03c234daa77f4e64ed89281c40db887e4498
Fix stuff that was bugging me about the way I did it at first.
While messing around I found RDS code wasn't masking its GPIO
ISR as it should, which might lead to two different interrupts
messing with the static data.
Change-Id: I54626809ea3039a842af0cc9e3e42853326c4193
Remove "low power mode clocking" as we stop clocking by hands after each transfer.
Remove CGU_IDE and CGU_MEMSTICK as we don't use them.
Simplify logic in sd_transfer_sectors.
Change-Id: I120396d7ec5c99c62f3a746306aa8edd8686e08a
Some drivers set tm_wday just fine and do not need it coerced to
be correct. Others set tm_yday, so don't overwrite what the driver
sets; just zero it inside if it can't fill the field. Move calls
to set_day_of_week() to the sorts of drivers that presumably
required the hammer (FS#11814) in get_time() where the weekday
isn't locked to the date.
Change-Id: Idd0ded6bfc9d9f48fcc1a6074068164c42fcf24a
1. Slightly revised and regularized internal interface. Callback is used
for read and write to provide completion signal instead of having two
mechanisms.
2. Lower overhead for asynchronous or alterate completion callbacks. We
now only init what is required by the transfer. A couple unneeded
structure members were also nixed.
3. Fixes a bug that would neglect a semaphore wait if pumping the I2C
interrupts in a loop when not in thread state or interrupts are masked.
4. Corrects broken initialization order by defining KDEV_INIT, which
makes kernel_init() call kernel_device_init() to initialize additional
devices _after_ the kernel, threading and synchronization objects are
safe to use.
5. Locking set_cpu_frequency has to be done at the highest level in
system.c to ensure the boost counter and the frequency are both set in
agreement. Reconcile the locking inteface between PP and AMS (the only
two currently using locking there) to keep it clean.
Now works fine with voltages in GIT HEAD on my Fuze v2, type 0.
Previously, everything crashed and died instantly. action.c calling
set_cpu_frequency from a tick was part of it. The rest may have been
related to 3. and 4. Honestly, I'm not certain!
Testing by Mihail Zenkov indicates it solves our problems. This will
get the developer builds running again after the kernel assert code
push.
Change-Id: Ie245994fb3e318dd5ef48e383ce61fdd977224d4
Add lua code to check whether ei/di and ext instructions are supported. This
is unclear since xburst is somewhere between mips32r1 and mips32r2. Details
results are below, but in summary: they don't work (ei has no effect, di/ext
cause illegal instruction exceptions)
> ./hwstub_shell -q -b -e 'require("jz/misc"); JZ.misc.enable_sram()' \
-f lua/xburst.lua -e "XBURST.test_ext_inst(0xb32d0000)"
[...]
Selecting soc jz4760b. Redirecting HW to hwstub.soc.jz4760b
data: d7168acf
error: lua/xburst.lua:209: call failed
trapped exception in call
> ./hwstub_shell -q -b -e 'require("jz/misc"); JZ.misc.enable_sram()' \
-f lua/xburst.lua -e "XBURST.test_ei_di_inst(0xb32d0000)"
[...]
Selecting soc jz4760b. Redirecting HW to hwstub.soc.jz4760b
Testing ei
Test SR
Enable interrupts with CP0
SR: 0x1
Disable interrupts with CP0
SR: 0x0
Test ei/di
Enable interrupts with ei
SR: 0x0
Disable interrupts with di
error: lua/xburst.lua:244: call failed
trapped exception in call
Change-Id: I2e162b5dd5e70488bcd8b58f3ca401a3ecab3c4b
Since we can catch exceptions like data aborts on read/write, it takes very
little to also catch exceptions in calls. When extending this with the catching
of illegal instructions, the call instruction now becomes much more robust and
also for address and instruction probing. Since we can catch several types of
exception, rename set_data_abort_jmp to set_exception_jmp. At the same time,
simplify the logic in read/write request handlers. Also fix a bug in ARM
jump code: it was using
stmia r1, {..., pc}
as if pc would get current pc + 8 but this is actually implementation defined
on older ARMs (typically pc + 12) and deprecated on newer ARMs, so rewrite the
code avoid that. The set_exception_jmp() function now also reports the exception
type.
Change-Id: Icd0dd52d2456b361b27c4776be09c3d13528ed93
Now that we now that jz4760b implements EBASE, we can use it to rebase
exceptions to use a k1seg address, that maps to the physical address of the
TCSM0. It requires to enable HAB1 to have this translation. This most the most
inefficient way to access tighly coupled memory ever, but it works.
Change-Id: I894ca929c9835696102eb2fef44b06e6eaf96d44
The JZ misc allows to enable and test SRAM.
The XBurst code uses the coprocessor interface to analyse the cpu. It also
provides a test platform for various features like EBASE and exceptions.
I was able to test and confirm that on jz4760b (thus xburst), EBASE works
(but top 2 bits are not controllable and always 01). The processor claims
to support vector interrupts but this is untested. The values in ConfigX
are not to be trusted blindly, clearly some are wrong. I tried to use the
JZ4780 Config7 "ebase gate" to change bit 30 of EBASE but it does not work,
which suggests that JZ480 uses a newer version of XBurst. Detailled log below:
> ./hwstub_shell -q -f lua/xburst.lua -e "XBURST.init()"
[...]
XBurst:
PRId: 0x2ed0024f
CPU: JZ4760(B)
Config: 0x80000483
Architecture Type: MIPS32
Architecture Level: Release 2 (or more)
MMU Type: Standard TLB
Config1: 0x3e63318a
MMU Size: 32
ICache
Sets per way: 128
Ways: 4
Line size: 32
DCache
Sets per way: 128
Ways: 4
Line size: 32
FPU: no
Config2: 0x80000000
Config3: 0x20
Vectored interrupt: yes
Config7: 0x0
> ./hwstub_shell -q -e 'require("jz/misc"); JZ.misc.enable_sram()' \
-f lua/xburst.lua -e "XBURST.test_ebase(0x80000000);XBURST.test_ebase(0xb32d0000)
[...]
Testing EBASE...
Disable BEV
SR value: 0x2000fc00
EBASE value: 0x80000000
Value after writing 0x80000000: 0x80000000
Value after writing 0x80040000: 0x80040000
Test result: EBase seems to work
Disable config7 gate: write 0x0 to Config7
Value after writing 0xfffff000: 0xbffff000
Enable config7 gate: write 0x80 to Config7
Value after writing 0xc0000000: 0x80000000
Config7 result: Config7 gate does not work
Exception test with EBASE at 0x80000000...
Writing instructions to memory
Old SR: 0x2000fc00
New SR: 0xfc00
EBASE: 80000000
Before: cafebabe
After: deadbeef
Exception result: Exception and EBASE are working
Testing EBASE...
Disable BEV
SR value: 0x2000fc00
EBASE value: 0x80000000
Value after writing 0x80000000: 0x80000000
Value after writing 0x80040000: 0x80040000
Test result: EBase seems to work
Disable config7 gate: write 0x0 to Config7
Value after writing 0xfffff000: 0xbffff000
Enable config7 gate: write 0x80 to Config7
Value after writing 0xc0000000: 0x80000000
Config7 result: Config7 gate does not work
Exception test with EBASE at 0xb32d0000...
Writing instructions to memory
Old SR: 0x2000fc00
New SR: 0xfc00
EBASE: b32d0000
Before: cafebabe
After: deadbeef
Exception result: Exception and EBASE are working
Change-Id: I894227981a141a8c14419b36ed9f519baf145ad1
These macros are like jz_setf but instead of writing fields, they write a
raw value directly: jz_set(REG, value) and jz_clr(REG, value).
Change-Id: I660f20dd691b26d367533877875fc3226a26c992
Apparently I completely forgot to implement it so using hwstub over net would
just fail all EXEC commands :-s
Change-Id: I0d0506cbbce9b86c9a4f19036dacc922d1e51338
This is needed on the jz4760b because if some data is loaded to DRAM, then it
is cached and a disaster lurks if dcaches/icache are not flushed. Targets that
needs this must define CONFIG_FLUSH_CACHES in target-config.h and implement
target_flush_caches(). Currently MIPS has some generic code for mips32r1 that
requires to define {D,I}CACHE_SIZE and {D,I}CACHE_LINE_SIZE in target-config.h
Change-Id: I5a3fc085de9445d8c8a2eb61ae4e2dc9bb6b4e8e
The stub is quite versatile: it can be loaded using bootrom or another other
means (like factory boot on Fiio X1). It relocates itself to TCSM0 and provides
basic functionality (it does not recover from failed read/writes at the moment).
Change-Id: Ib646a4b43fba9358d6f93f0f73a5c2e9bcd775a7
The jz code can do several useful things like dumping the IPL and SPL.
The Fiio code can play with backlight and has code do dump the IPL
and SPL with the correct parameters (extracted by reverse engineering).
Change-Id: I317b3174f5db8d38c9a56670c1d45565142ec208
This is a register description file for the JZ4760B. There are several
details worth noticing:
- it was obtained by gathering information from several sources/headers, but
since there are inconsistencies between them about the exact differences
between JZ4760 and JZ4760B, this file probably contains some errors
- the register names are not the same as the manual ones (which are not the
same as the one in the headers anyway): I dropped the "R" suffix on most
registers because it's redundant
- Ingenic likes to have read-only registers and then set/clr registers, with
very confusing names like DIR/DIRS/DIRC: in the file, the set/clr registers
are described as set/clr variants of the original register
- Parts of the description were obtained programmatically, which explains why
there are empty nodes or partially undocumented registers
Change-Id: I8da1d61e172e932e1a4a58ac0a5008f02b1751be
The code was not updated when I added support for list and other stuff, and thus
it did not properly sort by addresses.
Change-Id: Iaed0717b607beedfb2856c020c2a760e7a5667c5
The function is neither reentrant nor ISR callable. Instead of
using a ticked-based timeout, have the button driver provide the
unboost after a delay when waiting for a button.
HAVE_GUI_BOOST gets immediate boost after dequeuing any message,
otherwise the queue has to have at least three messages waiting
for it to trigger a boost-- essentially the behavior that existed
but now combined in one place.
Change-Id: I1d924702840f56a1a65abe41fa92b4e753c4e75a
FF_PROBE should leave nothing for caller to clean up whether
testing only the cache or permitting disk access. Less to worry
about.
Change-Id: Iea5aa3c1ae7f9025a9de528b127f08e490154048
