Add clk_rcg_set_rate() which allows to configure clocks without programming
MND values. This is required for configuring I2C clocks on QCS404.
Co-developed-by: Mike Worsfold <mworsfold@impinj.com>
Signed-off-by: Mike Worsfold <mworsfold@impinj.com>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Use standard pinconf drive-strength values from Linux DT bindings rather
than ones based on custom u-boot header. These changes are in direction
to make u-boot DTs for Qcom SoCs to be compatible with standard Linux
DT bindings.
Also, add support for pinconf bias-pull-up.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Currently u-boot maps whole of 1G RAM but there reserved memory ranges on
QCS404 which are reserved for TrustZone, various firmware components etc.
Any access to these reserved memory ranges causes a bus hang issue. So
disable mapping for reserved memory ranges in u-boot.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
KASLR address is needed to boot fully functional Android.
KASLR is set by primary bootloader, and since u-boot is used
as a secondary bootloader(replacing kernel) on sdm845 platform,
KASLR may be found by comparing memory chunks at relocaddr over
supposed KASLR range.
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
We only need to enable DM_ETH if we have a networking driver. All
networking drivers depend on DM_ETH being enabled, and their selection
ensures DM_ETH will be enabled.
Signed-off-by: Tom Rini <trini@konsulko.com>
Currently for all Qcom SoCs/boards there are separate compatibles for
GPIO and pinctrl. But this is inconsistent with official (upstream) Linux
bindings which requires only a single compatible "qcom,<SoC name>-pinctrl"
and there is no such compatible property as "qcom,tlmm-<SoC name>".
So fix this inconsistency for Qcom SoCs in order to comply with upstream
DT bindings. This is done via removing compatibles from "msm_gpio" driver
and via binding to "msm_gpio" driver from pinctrl driver in case
"gpio-controller" property is specified for pinctrl node.
Suggested-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
DT compatible is sufficient to make platform specific differentiation,
so remove redundant CONFIG_SDM845 check.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Drivers like USB, ethernet etc. uses ".enable" hook to enable clocks.
So add corresponding support for Qcom clock drivers.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Add support for Qualcomm QCS404 SoC based evaluation board.
Features:
- Qualcomm Snapdragon QCS404 SoC
- 1GiB RAM
- 8GiB eMMC, uSD slot
U-boot is chain loaded by ABL in 64-bit mode as part of boot.img.
For detailed build and boot instructions, refer to
doc/board/qualcomm/qcs404.rst.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Currently this clock driver initializes clocks for UART and eMMC. Along
with this import "qcom,gcc-qcs404.h" header from Linux mainline to
support DT bindings.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Currently this pinctrl driver only supports BLSP UART2 specific pin
configuration.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Add support for 96Boards Dragonboard 845C aka Robotics RB3 development
platform. This board complies with 96Boards Open Platform Specifications.
Features:
- Qualcomm Snapdragon SDA845 SoC
- 4GiB RAM
- 64GiB UFS drive
U-boot is chain loaded by ABL in 64-bit mode as part of boot.img.
For detailed build and boot instructions, refer to
doc/board/qualcomm/sdm845.rst, board: dragonboard845c.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Rather than using magic numbers as clock ids for peripherals import
qcom,gcc-sdm845.h from Linux to be used standard macros for clock ids.
So start using corresponding clk-id macro for debug UART.
Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Samsung S9 SM-G9600 - Snapdragon SDM845 version of the phone,
for China \ Hong Kong markets.
Has unlockable bootloader, unlike SM-G960U (American market version),
which allows running u-boot as a chain-loaded bootloader.
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Hi-end qualcomm chip, introduced in late 2017.
Mostly used in flagship phones and tablets of 2018.
Features:
- arm64 arch
- total of 8 Kryo 385 Gold / Silver cores
- Hexagon 685 DSP
- Adreno 630 GPU
Tested only as second-stage bootloader.
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Stephan Gerhold <stephan@gerhold.net>
Allows to change clock frequency of debug uart,
thus supporting wide range of baudrates.
Enable / disable functionality is not implemented yet.
In most use cases of SDM845 (i.e. mobile phones and tablets)
it's not needed, because qualcomm first stage bootloader leaves it
initialized, and on the other hand there's no possibility to
replace signed first stage bootloader with u-boot.
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
The logic in msm_generate_mac_addr() was originally taken from the LK
bootloader where the serial number is a string and must be parsed first.
However, in U-Boot msm_board_serial() returns an u32 and
msm_generate_mac_addr() has quite complicated code that will first
print it as a hex string and then immediately parse it again.
What this function actually does at the end is to put the serial number
encoded as big endian (the order used for the hex string) into the u8 *mac.
Use put_unaligned_be32() to do that with bit shifts instead of going
through the string format.
This should be slightly more efficient and cleaner but does not result
in any functional difference.
Cc: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
At the moment U-Boot produces an empty MAC address (02:00:00:00:00:00)
if the eMMC is not used by anything in U-Boot (e.g. with
CONFIG_ENV_IS_NOWHERE=y instead of having the environment on eMMC).
This happens because then there is nothing that actually initializes
the eMMC and reads the "cid" that is later accessed.
To fix this, call mmc_init() to ensure the eMMC is initialized.
There is no functional difference if the eMMC is already initialized
since then mmc_init() will just return without doing anything.
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
It is a pain to have to specify the value 16 in each call. Add a new
hextoul() function and update the code to use it.
Add a proper comment to simple_strtoul() while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
At the moment the U-Boot port for the DragonBoard 410c is designed
to be loaded as an Android boot image after Qualcomm's Little Kernel (LK)
bootloader. This is simple to set up but LK is redundant in this case,
since everything done by LK can be also done directly by U-Boot.
Dropping LK entirely has at least the following advantages:
- Easier installation/board code (no need for Android boot images)
- (Slightly) faster boot
- Boot directly in 64-bit without a round trip to 32-bit for LK
So far this was not possible yet because of unsolved problems:
1. Signing tool: The firmware expects a "signed" ELF image with extra
(Qualcomm-specific) ELF headers, usually used for secure boot.
The DragonBoard 410c does not have secure boot by default but the
extra ELF headers are still required.
2. PSCI bug: There seems to be a bug in the PSCI implementation
(part of the TrustZone/tz firmware) that causes all other CPU cores
to be started in 32-bit mode if LK is missing in the boot chain.
This causes Linux to hang early during boot.
There is a solution for both problems now:
1. qtestsign (https://github.com/msm8916-mainline/qtestsign)
can be used as a "signing" tool for U-Boot and other firmware.
2. A workaround for the "PSCI bug" is to execute the TZ syscall when
entering U-Boot. That way PSCI is made aware of the 64-bit switch
and starts all other CPU cores in 64-bit mode as well.
Simplify the dragonboard410c board by removing all the extra code that
is only used to build an Android boot image that can be loaded by LK.
This allows dropping the custom linker script, special image magic,
as well as most of the special build/installation instructions.
CONFIG_REMAKE_ELF is used to build a new ELF image that has both U-Boot
and the appended DTB combined. The resulting u-boot.elf can then be
passed to the "signing" tool (e.g. qtestsign).
The PSCI workaround is placed in the "boot0" hook that is enabled
with CONFIG_ENABLE_ARM_SOC_BOOT0_HOOK. The extra check for EL1 allows
compatibility with custom firmware that enters U-Boot in EL2 or EL3,
e.g. qhypstub (https://github.com/msm8916-mainline/qhypstub).
As a first step these changes apply only to DragonBoard410c.
Similar changes could likely also work for the DragonBoard 820c.
Note that removing LK wouldn't be possible that easily without a lot of
work already done three years ago by Ramon Fried. A lot of missing
initialization, pinctrl etc was already added back then even though
it was not strictly needed yet.
Cc: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
According to arch/arm/lib/crt0_64.S, the BSS section is "UNAVAILABLE"
and uninitialized before relocation. Also, it overlaps with the
appended DTB before relocation, so writing data into a variable
in the BSS section might corrupt the appended DTB.
Unfortunately, pinctrl-apq8016.c and pinctrl-apq8096.c do place the
"pin_name" variable in the BSS section (since it's uninitialized).
It's also used before relocation, when setting up the pinctrl for
the serial driver.
On DB410c this causes "GPIO_5" to be written into some part of an
appended DTB, e.g.:
80111820: edfe0dd0 9f100000 38000000 c00e0000 ...........8....
80111830: 28000000 11000000 10000000 00000000 ...(............
80111840: 4f495047 8800355f 00000000 00000000 GPIO_5..........
80111850: 00000000 00000000 01000000 00000000 ................
80111860: 03000000 04000000 00000000 02000000 ................
80111870: 03000000 04000000 0f000000 02000000 ................
80111880: 03000000 2d000000 1b000000 6c617551 .......-....Qual
80111890: 6d6d6f63 63655420 6c6f6e68 6569676f comm Technologie
Depending on the part of the DTB that is corrupted this might not
cause any problems, but it can also result in strange reboots
without any serial output.
Fortunately, in practice this does not cause issues on DB410c yet
because board_fdt_blob_setup() in dragonboard410c.c currently
overrides the appended DTB with the one passed by the previous
bootloader (LK) (which does not get corrupted).
DB820c does not have board_fdt_blob_setup() so I would expect it to
be affected by this problem. Perhaps everyone was just fortunate to
not compile an U-Boot configuration where the pin_name corrupts an
important part of the DTB.
Make sure "pin_name" is explicitly placed in the .data section
instead of .bss to fix this.
Cc: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
The GICC register used by u-boot is 0x0a20c000, which is actually a GICC
for WCNSS, the WLAN processor. U-boot runs on the Application Processor,
therefore it should use APCS GICC instead. Hence, correct it with APCS GICC
register address.
Signed-off-by: Sheep Sun <sunxiaoyang2003@gmail.com>
Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.
Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.
Signed-off-by: Simon Glass <sjg@chromium.org>
When you enable CONFIG_OF_LIVE, you will end up with a lot of
conversions.
To generate this commit, I used coccinelle excluding drivers/core/,
include/dm/, and test/
The semantic patch that makes this change is as follows:
<smpl>
@@
expression dev;
@@
-devfdt_get_addr(dev)
+dev_read_addr(dev)
</smpl>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
When you enable CONFIG_OF_LIVE, you will end up with a lot of
conversions.
To generate this commit, I used coccinelle excluding drivers/core/,
include/dm/, and test/
The semantic patch that makes this change is as follows:
<smpl>
@@
expression dev;
@@
-devfdt_get_addr(dev)
+dev_read_addr(dev)
</smpl>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
When generating the MAC address based on the boards serial number
the last digit was overwritten with the null termination. That way
boards with serial numbers close to each other would use the same
MAC address.
Signed-off-by: Jan-Christoph Tebbe <Jan-Christoph.Tebbe@ithinx.io>
The TLMM_GPIO_ENABLE bit is actually use to disable
the GPIO. change it to TLMM_GPIO_DISABLE so it's clearer.
Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
Add pinctrl driver for Dragonboard820c, currently with only
one mux func to initialize pins for serial console.
Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
The PLL for the UART was not set, and relied on previous
initializtion made by LK. add the appropriate initialization.
Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
The serial# environment variable needs to be
defined so it will be used by fastboot as serial
for the endpoint descriptor.
Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
Add support for generation of unique MAC address
that is derived from board serial.
Algorithm for generation of MAC taken from LK.
Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
This commit adds a function to get the board
serial number.
In snapdragon it's actually the eMMC serial number.
Function added in a new file misc.c that will
include further snapdragon miscellaneous functions.
Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
Fixup the Linux FDT with the detection of onboard DRAM as
provided by SBL (Secondary boot loader) by reading
the shared-memory region.
Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
This patch adds pinmux and pinctrl driver for TLMM
subsystem in snapdragon chipsets.
Currently, supporting only 8016, but implementation is
generic and 8096 can be added easily.
Driver is using the generic dt-bindings and doesn't
introduce any new bindings (yet).
Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
