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This patch removes a large number of #ifdefs that switch on machine
model. Where applicable, the machine_is_* idiom is favoured; this
mainly makes the code easier to read, but it does have some other
advantages, too.
Signed-off-by: Jonas Bonn <jonas.bonn@gmail.com>
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Problems building with GTA01 disabled in config come down to not selecting the
common CONFIG for GTAXX with GTA02, and GTA01-specific gps stuff.
Signed-off-by: Andy Green <andy@openmoko.com>
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Don't change bt regulator at all if already at requested state, and
turn it to opposite on | off state before changing regulator voltage
and setting final state.
Signed-off-by: Sean McNeil <sean@mcneil.com>
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I'm not sure if this patch if complete/correct, but it seems to fix the
clock problem.
Via: http://marc.info/?l=linux-arm-kernel&m=122322617931931&w=2
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Signed-off-by: Jonas Bonn <jonas.bonn@gmail.com>
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These fixes are required to build without MACH_NEO1973_GTA02
Signed-off-by: Jonas Bonn <jonas.bonn@gmail.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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This cleans out some random externs in C files that checkpatch does not like
and introduces a couple of .h files to contain them. Plus some other minor
checkpatch style complaints.
Signed-off-by: Andy Green <andy@openmoko.com>
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This patch ensures that no console data will go the UART while
the GSM mux is switched to the GSM. This is necessary despite
the code that disables the console due to the fact that the
console resumes before the neo1973_pm_gsm driver, and consoles
always resume in the "on" state.
Signed-off-by: Mike Westerhof <mwester@dls.net>
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Add the basic GSM flowcontrol code.
Signed-off-by: Mike Westerhof <mwester@dls.net>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Andy Green <andy@openmoko.com>
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This patch uses the new glamo-mci slow clock ratio
patch in order to dynamically reduce SD Card clock
rate when the GPS unit is powered on GTA02.
Signed-off-by: Andy Green <andy@openmoko.com>
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Suggested-by: Sean McNeil <sean@mcneil.com>
To see if some subtle race is involved, Sean has tried
removing syslog traffic during resume and found he was
not seeing the resume crash any more. We're giving it
a try to see if it changes the behaviour for anyone
else. It would mean we have a pretty fine race in there
somewhere.
Signed-off-by: Andy Green <andy@openmoko.com>
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A few questions have been flying around about how optimal
our waitstates are for various things including Glamo.
This patch introduces new sysfs nodes
/sys/devices/platform/neo1973-memconfig.0/BANKCON0
...
/sys/devices/platform/neo1973-memconfig.0/BANKCON7
If you cat them you get translated info about bus speed on
that chip select, eg,
# cat /sys/devices/platform/neo1973-memconfig.0/BANKCON1
BANKCON1 = 0x00000A40
Type = ROM / SRAM
PMC = normal (1 data)
Tacp = 2 clocks
Tcah = 0 clocks
Tcoh = 1 clock
Tacc = 3 clocks
Tcos = 1 clock
Tacs = 0 clocks
You can write them in hex too
# echo 0x200 > /sys/devices/platform/neo1973-memconfig.0/BANKCON1
The write format for BANKCON0 - 5 looks like this
b1..b0 PMC Page Mode Config
b3..b2 Tacp Page Mode Access Cycle
b5..b4 Tcah Address hold after CS deasserted
b7..b6 Tcoh CS hold after OE deasserted
b10..b8 Tacc Access Cycle Period
b12..b11 Tcos CS setup before OE asserted
b14..b13 Tacs Address setup before CS asserted
BANKCON 6 and 7 have two extra bits
b16..b15 MT Memory type (00=ROM/SRAM, 11=DRAM)
If it's ROM/SRAM, the rest of the bits are as described above.
For DRAM
b1..b0 SCAN Column address number
b3..b2 RAS to CAS delay
The patch is intended to let people experiement on their own. But
of course you will crash things for sure if the timing is wrong, and
you can also trash SD Card data if you make Glamo unstable, so remove
it or remount ro first. Other horrible things are possible, but
because the settings aren't sticky, you should always be able to
recover by either normal reboot usually or at worst NOR boot and then
dfu. Most likely you will just crash your session and have to reboot
if your settings are bad, but consider yourself warned bad things are
possible. :-)
Signed-off-by: Andy Green <andy@openmoko.com>
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During the suspend current reduction campaign on suspend I
forced the GPS UART to be GPIO and to drive 0 into the GPS
unit so we would not burn current there. On resume it lets
the pins act as UARTs again. But really, we should do this
all the time that the GPS unit is off, lest we leak it
enough power to hold internal state and make trouble.
Signed-off-by: Andy Green <andy@openmoko.com>
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Signed-off-by: Mike Westerhof <mwester@dls.net>
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Subject: [PATCH] Hacky CONFIG_NO_IDLE_HZ (dyn-tick) support for S3C24xx.
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Signed-off-by: Andy Green <andy@openmoko.com>
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Adds the somewhat simpler resume source support for GTA01
since PMU is not a wake source
Signed-off-by: Andy Green <andy@openmoko.com>
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If you have U-Boot with uboot-add-find-wake-reason.patch, this
patch will get you a wake reason report from
cat /sys/devices/platform/neo1973-resume.0/resume_reason
it looks like this:
EINT00_ACCEL1
EINT01_GSM
EINT02_BLUETOOTH
EINT03_DEBUGBRD
EINT04_JACK
EINT05_WLAN
EINT06_AUXKEY
EINT07_HOLDKEY
EINT08_ACCEL2
* EINT09_PMU
adpins
adprem
usbins
usbrem
rtcalarm
second
onkeyr
onkeyf
exton1r
exton1f
exton2r
exton2f
exton3r
exton3f
* batfull
chghalt
thlimon
thlimoff
usblimon
usblimoff
adcrdy
onkey1s
lowsys
lowbat
hightmp
autopwrfail
dwn1pwrfail
dwn2pwrfail
ledpwrfail
ledovp
ldo1pwrfail
ldo2pwrfail
ldo3pwrfail
ldo4pwrfail
ldo5pwrfail
ldo6pwrfail
hcidopwrfail
hcidoovl
EINT10_NULL
EINT11_NULL
EINT12_GLAMO
EINT13_NULL
EINT14_NULL
EINT15_NULL
This shows a problem, false wake from suspend due to battery full
Signed-off-by: Andy Green <andy@openmoko.com>
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Created an attachment (id=593) / from BZ#79
Updated patch to preserve the power state of the GPS on the GTA01
Currently the GPS is powered up after a suspend/resume occurs. This patch will
only power the GPS back up if it was powered up when the GTA01 suspended.
Signed-off-by: Mike Westerhof <mwester@dls.net>
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- Any setting of any PIN on bank B will undo the LED setting.
Introduce neo1973_gpb_set_pin to set the PIN in a way not losing
the LED or any other shadowed setting.
- Update users of GPBXY for gta01 and gta02.
Signed-Off-By: Holger Freyther <zecke@openmoko.org>
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The bluetooth enable and modem reset switched the order in
gta02. Do not poke the bluetooth dongle when we want to reset
the modem.
Signed-Off-By: Holger Freyther <zecke@openmoko.org>
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If we build a kernel without gta01/gta02 the
machine_is_ macro will expand to (0) and the compiler will
optimize the if (0) {} away.
Signed-Off-By: Holger Freyther <zecke@openmoko.org>
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Signed-Off-By: Holger Freyther <zecke@openmoko.org>
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Only enable or disable the interrupt if we see we are in the opposing state.
Also force that damn GSM download signal deasserted on probe at the time we
set the logical state for it to deasserted.
Signed-off-by: Andy Green <andy@openmoko.com>
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Similar to the neo1974_pm_gsm.c keep a static struct around. On suspend
we will save the current power state, on resume we will use this
information to enable power of the GPS only when it was powered on before.
This is passing basic tests with screen /dev/ttySAC1 on suspend and resume.
Only do this for the GTA02 as I don't have a gllin setup for the GTA01
I wonder why the suspend and resume code is not using gps_pwron_set and why
for the GTA02 we need to keep the state of the GPIOs, this should be done
by the s3c code.
Signed-Off-by: Holger Frether <zecke@openmoko.org>
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GTA02_GPIO_nDL_GSM defaults to high/1. On resume do not enable the DL_GSM if
it was not enabled before. This is stopping the storm of interrupts.
Fix the logic in the download file handling. Downloads are disabled (0) when
the GTA02_GPIO_nDL_GSM is high (1). To enable downloading set
GTA02_GPIO_nDL_GSM to low (0, !on). Disable the jack interrupt while download
the is active. When disabling download we will get a couple of jack interrupts
but this is hardly avoidable.
Avoid reading the GPIO value if we do not even have a console set.
Signed-Off-by: Holger Freyther <zecke@openmoko.org>
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Signed-Off-by: Holger Freyther <zecke@openmoko.org>
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Signed-off-by: Andy Green <andy@openmoko.com>
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We used to drive output high into GPS unit in suspend
Signed-off-by: Andy Green <andy@openmoko.com>
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Unless I really really missed the point, there is no support for enabling
USB Host power for USB host mode. This patch adds a /sys node for GTA02
that allows control of the charge pump for 5V out on the USB mini connector
It doesn't change any logical mode in the CPU, just enables (1) and disables
(0) USB host power.
# cat /sys/devices/platform/neo1973-pm-host.0/hostmode
0
# echo 1 > /sys/devices/platform/neo1973-pm-host.0/hostmode
Signed-off-by: Andy Green <andy@openmoko.com>
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Add support for GPA[] GPIO bus since we have some NCs
but they seem to output-only IO cells so no matter
Signed-off-by: Andy Green <andy@openmoko.com>
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Adds a C-based FIQ ISR which is very convenient (and unusual --
normally you have to do FIQ ISR in assembler only).
Based on my article:
http://warmcat.com/_wp/2007/09/17/at91rm9200-fiq-faq-and-simple-example-code-patch/
Implemented as a platform device and driver.
Suspend / resume is tested and works.
Signed-off-by: Andy Green <andy@warmcat.com>
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Modify GTA02 power manager for bluetooth.
1. Default power value isn't correct. Now we set pcf50633 LDO4 to 3.2 voltage.
2. Separate GTA01 and GTA02 source code.
3. Add pcf50633 API for enable register.
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Add the Samsung S3C2442B CPU idcode to the samsung s3c24xx platform code
and fix a Kconfig typo related tot the 2442.
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[PATCH] Neo1973 GPS / GSM / Bluetooth power control via sysfs
Signed-off-by: Harald Welte <laforge@openmoko.org>
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This patch adds support for the FIC Neo1973 GTA01 machine type to the ARM port
of the Linux kernel.
Signed-off-by: Harald Welte <laforge@openmoko.org>
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The initialization of clocks uses mutexes, but we execute the resume in
an interrupt context. We therefore have to hand this task to a non-interrupt.
Adapted from a patch by Andy Green.
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Add the fourth UART definition for the S3C2443, and at the
same time fixup the problems caused by the enlarging of the
UART array in the previous commits.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Make the device i2c0 common to plat-s3c and move the
definitions from arch/arm/plat-s3c24xx/devs.c
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Add new GPIO configuration calls that mesh with the
new gpiolib support.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Move the common parts of the GPIO code into plat-s3c
for use with both the s3c24xx and s3c64xx systems.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Move the definition for the hsmmc device to plat-s3c
to be shared between the s3c24xx and s3c64xx platforms.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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