Commit graph

119 commits

Author SHA1 Message Date
Gabe Black
dcaaba44b6 snow: Fix the edid data structure definition so depthcharge works again.
Some new fields were added to the edid data structure, and the edid code was
changed to put estimated values into those fields which were ultimately passed
into depthcharge or other payloads. On snow we do things different and just
declare an edid structure statically which didn't have those members. The rows
and columns of the graphics console were 0, and that confused the framebuffer
driver and made it loop forever.

Change-Id: I6ca3bd948482b347a6a981e83b82b10dca995e5e
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/61057
Reviewed-by: Ronald G. Minnich <rminnich@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/4341
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-12-12 22:02:52 +01:00
Kyösti Mälkki
b1b9c93f7c Add option to disable ChromeOS
Those building Chromebook firmware from coreboot git might be more
interested in building without ChromeOS extras.

Change-Id: I2f176d059fd45bf4eb02cc0f3f1dcc353095d0ce
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3977
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2013-12-02 22:28:54 +01:00
Kyösti Mälkki
ecd8424919 Fix whitespace leaked into tree
Clean whitespace errors that have gotten past lint-stable-003-whitespace
and gerrit review.

Change-Id: Id76fc68e9d32d1b2b672d519b75cdc80cc4f1ad9
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3920
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-09-17 21:04:35 +02:00
Kyösti Mälkki
95c39c28a3 CBMEM ARM: Prefer get_cbmem_table() over cbmem_late_set_table()
Implementing get_cbmem_table() allows initializing CBMEM earlier.

Change-Id: I973f3a84dd9aaa2839959df5dda22909fdb9edeb
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3560
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-09-11 07:19:36 +02:00
Kyösti Mälkki
1ae305efe1 CBMEM: Add cbmem_late_set_table() and drop references to high_tables_base
This helper function is for compatibility only for chipsets that do
not implement get_top_of_ram() to support early CBMEM.

Also remove references to globals high_tables_base and _size under
arch/ and from two ARMv7 boards.

Change-Id: I17eee30635a0368b2ada06e0698425c5ef0ecc53
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3902
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@google.com>
2013-09-11 07:12:15 +02:00
Hung-Te Lin
da7b8e4de9 armv7/exynos: Prevent unexpected reboots in resume.
In resume path, if memory setup takes too long without setting PS_HOLD, EC watch
dog may power off or reboot the system. To prevent that, we should enable
PS_HOLD in same timing as cold boot - right before starting memory setup.

Change-Id: I5c294fa7ae015f8cff57b1fd81e5b80902647b15
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3718
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 23:18:50 +02:00
Stefan Reinauer
2ad63c2e08 Exynos5250: Initialize USB PHY
... this is needed for libpayload to talk to USB devices.

Change-Id: I7eb19003c9e96efb5fa7a3f97c7b15f3ef332687
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3696
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 22:47:44 +02:00
Gabe Black
fe6406033f exynos5250: De-switch-ify the pinmux configuration code.
The pinmux code for the exynos5250 was all bundled into a single, large
function which contained a switch statement that would set up the pins for
different peripherals within the SOC. There was also a "flags" parameter, the
meaning of which, if any, depended on which peripheral was being set up.

There are several problems with that approach. First, the code is inefficient
in both time and space. The caller knows which peripheral it wants to set up,
but that information is encoded in a constant which has to be unpacked within
the function before any action can be taken. If there were a function per
peripheral, that information would be implicit. Also, the compiler and linker
are forced to include the entire function with all its cases even if most of
them are never called. If each peripheral was a function, the unused ones
could be garbage collected.

Second, it would be possible to try to set up a peripheral which that function
doesn't know about, so there has to be additional error checking/handling. If
each peripheral had a function, the fact that there was a function to call at
all would imply that the call would be understood.

Third, the flags parameter is fairly opaque, usually doesn't do anything, and
sometimes has to have multiple values embedded in it. By having separate
functions, you can have only the parameters you actually want, give them
names that make sense, and pass in values directly.

Fourth, having one giant function pretends to be a generic, portable API, but
in reality, the only way it's useful is to call it with constants which are
specific to a particular implementation of that API. It's highly unlikely that
a bit of code will need to set up a peripheral but have no idea what that
peripheral actually is.

Call sights for the prior pinmux API have been updated. Also, pinmux
initialization within the i2c driver was moved to be in the board setup code
where it really probably belongs. The function block that implements the I2C
controller may be shared between multiple SOCs (and in fact is), and those
SOCs may have different pinmuxes (which they do).

Other places this same sort of change can be made are the pinmux code for the
5420, and the clock configuration code for both the 5250 and the 5420.

Change-Id: Ie9133a895e0dd861cb06a6d5f995b8770b6dc8cf
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3673
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 21:49:55 +02:00
Stefan Reinauer
a86c33a31a google/snow: Don't spew output with GPIO config
There are hundreds of GPIOs on the Exynos5250. Don't
always print all of them per default.

Change-Id: Ie349f2a4117883302b743027ed13cc9705b804f8
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3661
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 21:45:00 +02:00
Gabe Black
1e797bdb79 exynos5250: Simplify the graphics code by eliminating the unused color map.
The code that allocated space for the framebuffer was adding space for a
vestigial color map which was never used. It was also passing around a
structure which was used to calculate a single value which was already known
when that structure was put together. Eliminate the extra space, and pass the
single value instead of the structure.

Change-Id: Ia6a41cefdf8b29fe7d68f9596a156eced6eb5df8
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3652
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 21:06:20 +02:00
Gabe Black
1387b439f1 snow: Make coreboot set up pins for busses it knows are hooked up as such
Coreboot knows that, for the snow board, certain pins are to be connected to
bus controllers in the SOC and to the wires of a bus external to the SOC. It
can configure them as such and free its payload from having to know how to
set everything up.

Change-Id: I1bb127c810e9ee077afc4227a6f316eaa53d6498
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3650
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
2013-07-10 20:30:03 +02:00
Stefan Reinauer
919c804425 ARMv7: Clean up console code
- Guard console_init() with CONFIG_EARLY_CONSOLE in bootblock
 - Don't initialize console twice in the bootblock
 - remove printk in memory init that would mess up the UART
 - unconditionally run console_init() in romstage, as it is
   also unconditionally run in the bootblock.

Change-Id: I8f0d60877433162367074d0e55e01f935fd81f8e
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3647
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 20:09:42 +02:00
Gabe Black
607c0b6d63 pit: Create an exynos5420 directory which is nearly a copy of exynos5250.
This change creates an exynos5420 directory with code that will eventually
implement support for the exynos5420 cpu from Samsung. Currently it's a copy
of the exynos5250 directory with the name changed. There are going to be some
problems where headers in src/cpu/samsung/exynos-common include headers in the
exynos5250 directory directly.

Change-Id: Ia8d7244310d32499238bbc171c0c668ec48178e1
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3644
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 20:08:53 +02:00
Stefan Reinauer
dc006c1db4 ARMv7: De-uboot-ify Exynos5250 GPIO code
The Exynos GPIO code has three different APIs that, unfortunately,
were widely used throughout the code base. This patch is cleaning
up the mess.

Change-Id: I09ccc7819fb892dbace9693c786dacc62f3f8eac
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3643
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 20:08:29 +02:00
Stefan Reinauer
08dc357146 ARMv7: De-uboot-ify Exynos5250 code
When starting the Exynos5250 port, a lot of unneeded u-boot code
was imported. This is an attempt to get rid of a lot of unneeded
code before the port is used as a basis for further ARM ports.

There is a lot more that can be done, including cleaning up the
5250's Kconfig file.

Change-Id: I2d88676c436eea4b21bcb62f40018af9fabb3016
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3642
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 20:08:15 +02:00
Stefan Reinauer
b98dec032f samsung/exynos5250: unify code
It turns out that the exynos5-common code previously imported from
u-boot is not common code at all but very specific to the 5250 and
not compatible with the 5450. Hence, unify the directories exynos5250
and exynos5-common. We will try to factor out common code while
progressing with the 5450 port.

Change-Id: Iab595e66fcd01eda8365c96fb8bef896f7602f03
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3641
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 02:41:23 +02:00
Stefan Reinauer
043eb0e35f Wield battle axe at ARM port
This patch unfortunately incorporates a number of changes,
all of which are making future ARM ports easier.

 - drop cruft that came in with u-boot
 - move serial console from mainboard Kconfig to Exynos Kconfig
 - factor out non-board specific wakeup code
 - move generic bootblock code from mainboard to Exynos
 - actually call arch_cpu_init()
 - remove dead code
 - fix up copyright messages
 - remove snow_ prefix from a lot of code to reduce the noise
   when creating a new mainboard based on that code.

Change-Id: Ic05326edf5a7e1a691c5ff841a604cb9e351b562
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3640
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 02:41:09 +02:00
Stefan Reinauer
6adef0847e Rename hardwaremain() to main()
... and drop the wrapper on ARMv7

Change-Id: If3ffe953cee9e61d4dcbb38f4e5e2ca74b628ccc
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3639
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 02:40:30 +02:00
Stefan Reinauer
2ae6d6f6de ARMv7: normalize ramstage code flow
In ram stage, all code flow should be tied to the resource allocator.
Stuff that has to happen before everything else goes into the mainboard
enable function in mainboard.c. This patch empties the main() wrapper
around hardwaremain.c, allowing to get rid of this special case in the
ARM port.

Change-Id: Ide91a23f1043b64acf64471f180a2297f0f40d97
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3638
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 02:40:17 +02:00
Ronald G. Minnich
b2893a0169 Provide support for setting up the framebuffer from EDID
Add three functions to edid.c:

void set_vbe_mode_info_valid(struct edid *edid, uintptr_t fb_addr)
takes an edid and uintptr_t, and fills in a static lb_framebuffer struct
as well as setting the static vbe_valid to 1 unless some problem
is found in the edid. The intent here is that this could be called from
the native graphics setup code on both ARM and x86.

int vbe_mode_info_valid(void)
returns value of the static vbe_valid.

void fill_lb_framebuffer(struct lb_framebuffer *framebuffer)
copies the static edid_fb to lb_framebuffer.

There is now a common vbe.h in src/include, removed the two special ones.

In general, graphics in coreboot is a mess, but graphics is always a
mess.  We don't have a clean way to try two different ways to turn on
a device and use the one that works. One battle at a time. Overall,
things are much better.

The best part: this code would also work for ARM, which also uses EDID.

Change-Id: Id23eb61498b331d44ab064b8fb4cb10f07cff7f3
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3636
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10 02:39:28 +02:00
Kyösti Mälkki
15c4ab7adf Move select MMCONF_SUPPORT under northbridge
Move/remove MMCONF_SUPPORT reference under mainboard Kconfig, as
that feature originates from northbridge and cannot be disabled
for a single mainboard.

Change-Id: I6d6861079876ddddaff90b10f18edb6936e93bd0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3589
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-07-03 19:34:11 +02:00
Gabe Black
c6d1da0b18 snow: Add a name to the serial console UART choice block.
This allows other boards to have the same choice block without confusing
kconfig.

Change-Id: Iea5a7f2d1c263aa7992f504b832ca9c862833c3f
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3293
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
2013-05-26 15:19:04 +02:00
Stefan Reinauer
2a3c10677f hardwaremain: drop boot_complete parameter
it has been unused since 9 years or so, hence drop it.

Change-Id: I0706feb7b3f2ada8ecb92176a94f6a8df53eaaa1
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/3212
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
2013-05-08 18:23:33 +02:00
David Hendricks
998d0c6d50 exynos5250/snow: deprecate time.h
This re-introduces 2fde966 (http://review.coreboot.org/#/c/3177/)
which was reverted due to unsatisfied dependencies.

time.h We Hardly Knew Ye.

This deprecates time.h which is currently only used by Exynos5250 and
Snow. The original idea was to try and unify some of the various timer
interfaces and has been supplanted by the monotonic timer API.

timer_us() is now obsolete. timer_start() is now mct_start() and
is exposed in exynos5250/clk.h.

Change-Id: I8e60105629d9da68ed622e89209b3ef6c8e2445b
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/3201
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-05-06 05:32:07 +02:00
David Hendricks
ab98cfe110 Revert "exynos5250/snow: deprecate time.h"
This reverts commit 2fde9668b4

Somehow this got merged before its dependencies. 3190 must be merged first, followed by 3176. However 3190 will fail while this patch is in. So the situation can't correct itself.

Reverting this until the other two go in.

Change-Id: I176f37c12711849c96f1889eacad38c00a8142c4
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/3195
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2013-05-04 20:36:36 +02:00
David Hendricks
2fde9668b4 exynos5250/snow: deprecate time.h
time.h We Hardly Knew Ye.

This deprecates time.h which is currently only used by Exynos5250 and
Snow. The original idea was to try and unify some of the various timer
interfaces and has been supplanted by the monotonic timer API.

timer_us() is now obsolete. timer_start() is now mct_start() and
is exposed in exynos5250/clk.h.

Signed-off-by: David Hendricks <dhendrix@chromium.org>
Change-Id: I14ebf75649d101491252c9aafea12f73ccf446b5
Reviewed-on: http://review.coreboot.org/3177
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-05-03 17:27:28 +02:00
Hung-Te Lin
043b823a73 Google/Snow: Revise bootblock initialization.
It's fine to always start timer even in suspend/resume mode, so we can
move the timer_start() back to the very beginning of boot procedure.
That provides more precise boot time information.

With that timer change, the wake up state test procedure can be simplified.

Verified by building and booting firmware image on Google/Snow successfully,
and then suspend-resume without problem (suspend_stress_test).

Change-Id: I0d739650dbff4eb3a75acbbf1e4356f2569b487d
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3151
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-05-01 18:26:50 +02:00
Hung-Te Lin
0004c0deec Google/Snow: Remove duplicated SPI1 initialization in bootblock.
The firmware media source (SPI1) is already initialized by Exynos iROM.
There is no need to do it again.

Verified by building and booting Google/Snow successfully.

Change-Id: I89390506aa825397c0d7e52ad7503f1cb808f7db
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3147
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-05-01 07:43:31 +02:00
Hung-Te Lin
032dd14514 Google/Snow: Remove unnecessary serial console init code.
The "console_init" does initialize UART driver (which will setup peripheral and
pinmux) and print starting message. Duplicated initialization can be removed.

Also, console_init (from console.c) is always linked to bootblock (and will do
nothing if CONFIG_EARLY_CONSOLE is not defined) so it's safe to remove #ifdef.

Verified by building and booting on Google/Snow, with and without
CONFIG_EARLY_CONSOLE.

Change-Id: I0c6b4d4eb1a4e81af0f65bcb032978dfb945c63d
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3150
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-30 19:22:05 +02:00
Hung-Te Lin
bf92b19b2a Google/Snow: Temporary fix for resume failure.
The DDR3 memory initialization (with "mem_reset" set on normal boot) will cause
resume to be unstable, especially when X is running. System may show X screen
for few seconds, then crash randomly and unable to recover - although text
console may still work for a while.  Probably caused by corrupted memory pages.

'mem_reset' (which refers to RESET# in DDR3 spec) should be enabled according
to DDR3 spec. But it seems that on Exynos 5, memory can be initialized without
setting mem_reset for both normal boot and resume - at least no known failure
cases are found yet.  So this can be a temporary workaround.

Verified by booting a Google/Snow device with X Window and ChromeOS, entering
browser session with fancy web pages, closing LID to suspend for 5 seconds, then
re-opening to resume.  Suspend/resume worked as expected.

Also tried the "suspend_stress_test" with X running and finished 100 iterations
of suspend/resume test without failure.

Change-Id: I7185b362ce8b545fe77b35a552245736c89d465e
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3148
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-30 05:49:42 +02:00
Hung-Te Lin
3f73eec4d3 Google/Snow: Enable suspend/resume.
Add the suspend/resume feature into bootblock and romstage.

Note, resuming with X and touchpad driver may be still unstable.

Verified by building and booting successfully on Google/Snow, and then executing
the "suspend_stress_test" in text mode ("stop ui; suspend_stress_test") in
Chromium OS, passed at least 20 iterations.

Change-Id: I65681c42eeef2736e55bb906595f42a5b1dfdf11
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3102
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2013-04-29 15:34:10 +02:00
Hung-Te Lin
31039e315c google/snow: Revise romstage initialization code.
Move board setup procedure to snow_setup_* functions, and Snow board-specific
(wakeup) code to snow_* for better function names and comments.

Verified by successfully building and booting on Google/Snow.

Change-Id: I2942d75064135093eeb1c1da188a005fd255111d
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3130
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
2013-04-26 20:00:45 +02:00
Hung-Te Lin
bd7f5f6492 google/snow: Add "wakeup" module for suspend/resume.
The "wakeup" procedure will be shared by bootblock and romstage for different
types of resume processes.

Note, this commit does not include changes in romstage/bootblock to enable
suspend/resume feature. Simply adding functions to handle suspend/resume.

Verified by successfully building and booting Google/Snow firmware image.

Change-Id: I17a256afb99f2f8b5e0eac3393cdf6959b239341
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3129
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-25 19:31:09 +02:00
Hung-Te Lin
55c753d3a9 arm/exynos: Allow DRAM controller to be initialized without clearing RAM content.
To support suspend/resume, PHY control must be reset only on normal boot
path.  So add a new param "mem_reset" to specify that.

Verified to boot successfully on Google/Snow.

Change-Id: Id49bc6c6239cf71a67ba091092dd3ebf18e83e33
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3128
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-25 19:27:48 +02:00
Ronald G. Minnich
2810afa57d GOOGLE/SNOW: get graphics working
This adds support for display bring-up on Snow. It
includes framebuffer initialization and LCD enable functions.

Change-Id: I16e711c97e9d02c916824f621e2313297448732b
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/3116
Tested-by: build bot (Jenkins)
2013-04-23 04:41:23 +02:00
David Hendricks
8d5bc9f772 google/snow: disable unused USB3.0 PLL to save power
This PLL is unused and can be disabled to save about 250mW.

Change-Id: I1be37304d6ea5ff78696e05ad1023ce3c57f636c
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/3109
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-19 23:10:05 +02:00
David Hendricks
ec10ce8971 google/snow: Minor clean-ups for display setup code in ramstage
This just cleans up a few areas:
- Removed an unnecessary delay from exynos_dp_bridge_setup()
- The delay at the end of exynos_dp_bridge_init() is necessary, so
  removed the comment suggesting that it might not be.
- Simplified exynos_dp_hotplug

Change-Id: I44150f5ef3958e333985440c1022b4f1544a93aa
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/3113
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-19 18:24:14 +02:00
David Hendricks
954d25484b google/snow: enable clock gating to save power
This enables clock gating to save power on unused IPs.

Change-Id: I9ab2a2535ebb91bb4110390a6f055a67146bdbf9
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/3110
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-19 18:22:51 +02:00
David Hendricks
34240b06d8 [3/3] google/snow: enable TMU
This enables the thermal management unit (TMU) on Snow.

Change-Id: Idd76af40bf0a5408baf61ef2665fd52ae4e260ba
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/3108
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
2013-04-19 04:19:28 +02:00
David Hendricks
1a0b5e1c05 google/snow: enable 32KHz sleep clock
Change-Id: I9db91826e4534b8a6eea2b13bcf7c6abd848b4e4
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/3075
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-17 17:56:06 +02:00
Gabe Black
8a2bc62d4c snow: Return 0 from get_recovery_mode_from_vbnv.
This function isn't yet used for much, or perhaps anything, but where it
appears in the code it's ored with other values. Since we're not actually
retrieving anything, it might be best to return 0 so that the other values
that are being ored in can be expressed and this function can stay dormant
until it actually has something to do.

Change-Id: I6edc222a5c2d00ece2ecfad5191a615331eeaf16
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3098
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
2013-04-16 11:11:53 +02:00
Gabe Black
5cda30845c snow: Report the state of the power button GPIO in the coreboot tables.
Change-Id: Ia7ce2b7342e186c565b92211e3ac15d80ce24b38
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3097
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: build bot (Jenkins)
2013-04-16 11:11:44 +02:00
Gabe Black
e2b20f2d5a snow: Configure the power button as an input GPIO.
We need to read it to report its value to the payload. The kernel will
reconfigure it as an external interrupt, but we'll make it a regular input
for now.

Change-Id: I019bd2c2731144d3b7bb53fad0c2c903874f616c
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3096
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
2013-04-16 11:11:18 +02:00
Gabe Black
acb9d44599 snow: Fix the name of some constants in romstage.c.
These names were inherited from chromeos.c where they've already been
fixed.

Change-Id: I7ad57b979b7b8f42f6bd68d1ecf887caba3fa3f1
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3095
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: build bot (Jenkins)
2013-04-16 11:10:54 +02:00
Gabe Black
88beef0a8e snow: Get rid of the oprom loaded GPIO.
ARM doesn't use option ROMs, so this value doesn't make sense.

Change-Id: I1a0f0854e1dd4b9594ca0c147e590337520436da
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3094
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: build bot (Jenkins)
2013-04-16 07:57:10 +02:00
Gabe Black
a5d914e47c snow: Tidy up chromeos.c.
Got rid of a lot of #defines, some of which were converted to enums and
the rest which were eliminated entirely. Got rid of cruft in
get_developer_mode_switch and started using it for the dev mode GPIO.
Instead of a macro defining how many GPIOs are expected, now the code
actually counts the GPIOs as they're added.

Change-Id: I97b6b9f52a72d1276eb3cf36d7f9dd7b335b4d19
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3093
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: build bot (Jenkins)
2013-04-16 07:33:40 +02:00
Gabe Black
7fa726a914 snow: Add support for EC based recovery.
Implement the get_recovery_mode_switch function using the newly added I2C
based Chrome EC support.

Change-Id: I9d0200629887f202edf017cba3222a7d7f5b053e
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3092
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: build bot (Jenkins)
2013-04-16 07:08:30 +02:00
Gabe Black
a554e23723 snow: Fix some comments in chromeos.c.
The comment about the lid switch was left over from when this file was copied
from another board and was incorrect. Also fixed a capitalization
inconsistency.

Change-Id: Icefd19047971e13c08f615578e4a181e82a2997f
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3091
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: build bot (Jenkins)
2013-04-16 07:04:23 +02:00
Hung-Te Lin
6bfbb33a64 ec/google: Support Google's Chrome EC on I2C interface.
Google's Chrome EC can be installed on LPC or I2C bus, using different command
protocol.  This commit adds I2C support for devices like Google/Snow.

Note: I2C interface cannot be automatically probed so the bus and chip number
must be explicitly set.

Verified by booting Google/Snow, with following console output:
  Google Chrome EC: Hello got back 11223344 status (0)
  Google Chrome EC: version:
     ro: snow_v1.3.108-30f8374
     rw: snow_v1.3.128-e35f60e
    running image: 1

Change-Id: I8023eb96cf477755d277fd7991bdb7d9392f10f7
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/3074
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-16 00:32:49 +02:00
David Hendricks
cd4c8c1e0e exynos5/snow: remove wait_ms arg from dp_controller_init()
This removes the wait_ms argument from the dp_controller_init(). The
only delay involved is a constant 60ms delay that happens if
everything else goes well. This delay is derived from the LCD spec
so there's no reason it should be baked into the controller code.

(This patch also has the side-effect of fixing a bug where we were
delaying on an undefined value for wait_ms).

Change-Id: I03aa19f2ac2f720524fcb7c795e10cc57f0a226e
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/3078
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-04-13 05:12:18 +02:00