Commit Graph

15912 Commits

Author SHA1 Message Date
Patrick Delaunay
909b690b31 dfu: cosmetic: cleanup sf to avoid checkpatch error
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Lukasz Majewski <lukma@denx.de>
2019-10-31 12:12:31 +01:00
Marek Szyprowski
fd15b58c1a dwc3: flush cache only if there is a buffer attached to a request
Calling cache flush on invalid buffer, even with zero length might cause
an exception on certain platforms.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2019-10-31 12:12:31 +01:00
Marek Szyprowski
d2d8eab421 dfu: mmc: add support for in-partition offset
Add possibility to define a part of partition as a separate DFU entity.
This allows to have more than one items on the given partition.

The real use case for this option is TM2 board. It can use u-boot stored
as Linux kernel on the defined partition (as RAW data) and load the real
kernel from the same partition, but stored under the certain offset.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Lukasz Majewski <lukma@denx.de>
2019-10-31 12:12:31 +01:00
Marek Szyprowski
ade08db899 gadget: f_thor: properly enable 3rd endpoint defined by the protocol
This is needed to make Windows THOR flash tool happy, because it
starts sending data only when interrupt packet is received on the 3rd
endpoint.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Lukasz Majewski <lukma@denx.de>
2019-10-31 12:12:31 +01:00
Ralph Siemsen
0a815ff7bb dfu: dfu_nand: reduce verbosity
In combination with multiple partitions in NAND, this printf() ends up
being more noise than helpful. Change it to debug() instead.

Signed-off-by: Ralph Siemsen <ralph.siemsen@linaro.org>
Acked-by: Lukasz Majewski <lukma@denx.de>
2019-10-31 12:12:31 +01:00
Vignesh Raghavendra
d624434f5e dwc3-generic: Don't fail probe if clk/reset entries are absent
Some boards don't populate clk/reset entries as these are are optional
as per binding documentation. Therefore, don't fail driver probe if
clk/reset entries are absent in DT.

This fixes fastboot failures seen due to enabling of CONFIG_CLK on AM57xx

Fixes: e8e683d33b ("board: ti: am57xx-idk: Configure the CDCE913 clock synthesizer")
Reported-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
2019-10-31 12:11:24 +01:00
Keerthy
3135022cb4 gpio: da8xx_gpio: Fix the _gpio_direction_output function
_gpio_direction_output function currently calls gpio_set_value
with the wrong gpio number. gpio_set_value in the uclass driver
expects a different gpio number and the _gpio_direction_output
is currently providing the number specific to the bank.

Hence fix it by calling the _gpio_set_value function instead.

Reported-by: Faiz Abbas <faiz_abbas@ti.com>
Fixes: 8e51c0f254 ("dm: gpio: Add DM compatibility to GPIO driver for Davinci")
Signed-off-by: Keerthy <j-keerthy@ti.com>
2019-10-30 17:48:47 -04:00
Tom Rini
412326d1bc Merge tag 'u-boot-clk-23Oct2019' of https://gitlab.denx.de/u-boot/custodians/u-boot-clk
- Add I2C clocks for i.MX6Q CCF driver
- Fix check in clk_set_default_parents()
- Managed API to get clock from device tree
- Fixes for core clock code (including sandbox regression tests)
2019-10-30 13:13:46 -04:00
Heinrich Schuchardt
ee5041451e blk: set log2blksz in blk_create_device()
The ext4 file system requires log2blksz to be set. So when setting the
block size on the block descriptor we should fill this field too.

This fixes a problem with EFI block devices providing ext4 partitions, cf.
https://lists.denx.de/pipermail/u-boot/2019-October/387702.html.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-10-30 17:49:40 +01:00
Tom Rini
700336f7e4 Merge tag 'mmc-10-29-2019' of https://gitlab.denx.de/u-boot/custodians/u-boot-mmc
- fsl_esdhc driver cleanup
- spl_mmc bug fix to avoid access wrong emmc partition
2019-10-30 09:06:33 -04:00
Tom Rini
cc64810dc6 Merge https://gitlab.denx.de/u-boot/custodians/u-boot-sunxi
- H6 dts(i) sync (Clément)
- H6 PIO (Icenowy)
- Fix pll1 clock calculation (Stefan)
- H6 dram, half DQ (Jernej)
- A64 OLinuXino eMMC (Sunil)
2019-10-30 09:04:52 -04:00
Yangbo Lu
5d336d1701 mmc: fsl_esdhc: drop i.MX DDR support code
A previous patch below adding DDR mode support was actually for i.MX
platforms. Now i.MX eSDHC driver is fsl_esdhc_imx.c. For QorIQ eSDHC,
it uses different process for DDR mode, and hasn't been supported.
Let's drop DDR support code for i.MX in fsl_esdhc driver.

0e1bf61 mmc: fsl_esdhc: Add support for DDR mode

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2019-10-29 10:09:22 +08:00
Yangbo Lu
2913926f3b mmc: fsl_esdhc: remove redundant DM_MMC checking
Remove redundant DM_MMC checking which is already in DM_MMC conditional
compile block.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2019-10-29 10:09:21 +08:00
Yangbo Lu
41dec2fe99 mmc: fsl_esdhc: make BLK as hard requirement of DM_MMC
U-boot prefers DM_MMC + BLK for MMC. Now eSDHC driver has already
support it, so let's force to use it.

- Drop non-BLK support for DM_MMC introduced by below patch.
  66fa035 mmc: fsl_esdhc: fix probe issue without CONFIG_BLK enabled

- Support only DM_MMC + BLK (assuming BLK is always enabled for DM_MMC).

- Use DM_MMC instead of BLK for conditional compile.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2019-10-29 10:09:21 +08:00
Jean-Jacques Hiblot
d60ae4c59d fdt: Fix alignment issue when reading 64-bits properties from fdt
The FDT specification [0] gives a requirement of aligning properties on
32-bits. Make sure that the compiler is aware of this constraint when
accessing 64-bits properties.

[0]: https://github.com/devicetree-org/devicetree-specification/blob/master/source/flattened-format.rst

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-10-27 13:01:53 -06:00
Kever Yang
97b5f9d1a0 dm: core: Update log method for uclass_find_device_by_seq
Use log() insted of debug() for uclass_find_device_by_seq function,
since this print is very much and we can filter it out with log()
interface.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Move #define to top of file as per docs:
Signed-off-by: Simon Glass <sjg@chromium.org>
2019-10-27 13:01:43 -06:00
Simon Glass
5ca5ec1e32 dm: regmap: Fix mask in regmap_update_bits()
This function assumes that the 'val' parameter has no masked bits set.
This is not defined by the function prototype though. Fix the function to
mask the value and update the documentation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-27 10:56:41 -06:00
Tom Rini
ffc379b42c - bmips: add BCRM NAND support for BCM6368, BCM6328, BCM6362 and BCM63268 SoCs
- bmips: various small fixes
 - mtmips: add new drivers for clock, reset-controller and pinctrl
 - mtmips: add support for high speed UART
 - mtmips: update/enhance drivers for SPI and ethernet
 - mtmips: add support for MMC
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEiQkHUH+J02LLC9InKPlOlyTyXBgFAl2zFisACgkQKPlOlyTy
 XBgf9RAAkNwLjqUcBz3Ob1briRG5HF4D6bZCpjtkTIO8a2fanUHbSehh30TX8x2X
 z0t/9Sd4OZwAeTxfQ/AlbbVdiB9IMgEb6lJ30Vr88MRNoPhABIQ8hw5xAzFi/6x9
 88YolS/HQo6iR9rzSlaKjdIHhPTH5oQzRJ3JLqSwZzfUNy+zqINEhs3SYCnD2lyV
 gTgiIT3Y5nKrhVHPUCy+jQG+wwWej2NFgwn71vR3/PSQJwxBuasg0qqOKD9hRtpC
 XL6VErE7bf00elO8xjEObYrmB2FpffXJdkazS2HtRYNyKx0quaRNXJt7wqxEVP9L
 M6SmL+S7zBFAetc/iyrlaakPvn7ImehSZkgLYaTPc3yzO+6bgq9tLfBERn/B/s5g
 YyIzPGF66L96nuu0eVGCgSoUBjzBE8l2QTI8dho5xJxjWAUJOWSB0egqfFZzYVFu
 4X37w6Z0j6uTK2oEl7KgJdc0JsZRsAJ8ZiqgOeNeMUTl2RnjGt0Oa7E24Va3n3hM
 5vuEba9nPUFmdC5vlSd2RUK/dB587uKV93r5j54U62clpbiK+VMaRuRVX64ytZvB
 B/0fKyCu+y7bxeZe4/X27jBUOk5yCuxbNI66m+cnnvfHqEmhz5PfDCEK1Dr29oqf
 sCJLgTr7ahyuW4kEoL7KCOBEugPI85fp8/OlqC63M6/Kft0w5sA=
 =6G/J
 -----END PGP SIGNATURE-----

Merge tag 'mips-pull-2019-10-25' of git://git.denx.de/u-boot-mips

- bmips: add BCRM NAND support for BCM6368, BCM6328, BCM6362 and BCM63268 SoCs
- bmips: various small fixes
- mtmips: add new drivers for clock, reset-controller and pinctrl
- mtmips: add support for high speed UART
- mtmips: update/enhance drivers for SPI and ethernet
- mtmips: add support for MMC
2019-10-25 20:07:24 -04:00
Tom Rini
15147dc6a9 Merge branch '2019-10-24-ti-imports'
- Enable DFU on dra7xx boards
- Further Keystone 3 platform improvements
2019-10-25 17:33:28 -04:00
Kevin Scholz
3bb3f266ee ram: k3-j721e: Add support for J721E DDR controller
The J721E DDR subsystem comprises DDR controller, DDR PHY and wrapper
logic to integrate these blocks in the device. The DDR subsystem is
used to provide an interface to external SDRAM devices which can be
utilized for storing program or data. Introduce support for the
DDR controller and DDR phy within the DDR subsystem.

Signed-off-by: Kevin Scholz <k-scholz@ti.com
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2019-10-25 17:33:21 -04:00
James Doublesin
34f27b2e86 ram: k3-am654: Do not rely on default values for certain DDR register
Added the following registers to the DDR configuration:
- ACIOCR0,
- ACIOCR3,
- V2H_CTL_REG,
- DX8SLxDQSCTL.

Modified enable_dqs_pd and disable_dqs_pd to only touch the associated
bit fields for pullup and pulldown registers (to preserve slew rate and
other bits in that same register). Also update the dts files in the same
patch to maintain git bisectability.

Signed-off-by: James Doublesin <doublesin@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2019-10-25 17:33:21 -04:00
James Doublesin
c78ac7a0c9 ram: k3-am654: add support for LPDDR4 and DDR3L DDRs
Added training support for LPDDR4 and DDR3L DDRs.  Also added/changed
some register configuration to support all 3 DDR types

Signed-off-by: James Doublesin <doublesin@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2019-10-25 17:33:21 -04:00
Tom Rini
271103ac0b Merge branch 'master' of git://git.denx.de/u-boot-usb
- DWC3 improvements
- i.MX7 EHCI bugfix
2019-10-25 13:50:51 -04:00
Tom Rini
c9e50bb12a Second set of u-boot-atmel features and fixes for 2020.01 cycle
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJdspnqAAoJEB6zHgIOrC/Ixi4IAJEEiCZPu6Z3fbkFX/Um7vCX
 eMTltJN8nz4oiSi3xdx3ejueqWdW3F8VuCkHb0j0bVAhMlUlVgwCzfd0cD+D2iwS
 jkrgzASNAr+JeYKYEdWqqfaUxOCd2qfuBu9EXlpvKQLWLt+KRfsOsHWcgR4bf095
 aGCihvd/fKhKYUvbf5cEQnsWa3UwtsKk4Web5MKjxXx3p0iVNlu4KLd/vDWfTios
 X1NqiO5ZjXNrDxyG6Aj8lgDXlE5kfeKaN/aCJU1/0U2cXm8JRu2w2dv1P/e/kU+j
 NHIGzICAG4Lk/4gQTeuohJxLyvj7K3i1H12ik9Qeh4H1/5fsyybyltGUo7H443s=
 =JYe3
 -----END PGP SIGNATURE-----

Merge tag 'u-boot-atmel-2020.01-b' of https://gitlab.denx.de/u-boot/custodians/u-boot-atmel

Second set of u-boot-atmel features and fixes for 2020.01 cycle

This feature set includes Eugen's work on a new tiny flexcom driver and
eeprom mac retrieval for the sam9x60-ek board.
2019-10-25 13:50:33 -04:00
Tom Rini
e382713d22 Xilinx/FPGA changes for v2020.01 part 2
common:
 - Fix manual relocation for repeatable commands
 
 arm:
 - Also clean up generated dtbos
 
 microblaze:
 - Add support for Manual relocation in crypto framework
 - Tune and align architecture bootm support
 
 zynq:
 - DT sync ups
 - Some defconfig updates
 - Remove empty board_early_init_f()
 
 zynqmp:
 - Clean firmware handing via drivers/firmware/
 - DT/defconfig name alignments
 - DT cleanups with using firmware based clock driver
 - Some defconfig updates
 - Add IIO ina226 DT description
 - Tune zynqmp_psu_init_minimalize.sh script
 - Add single nand mini configuration, e-a2197, m-a2197-02/03 and zcu216
 
 versal:
 - Clean firmware handing via drivers/firmware/
 - Add gpio support
 - Enable DT overlay/USB/CLK/FPGA
 - DT updates
 - Tune mini configuration
 
 spi:
 - gqspi - Remove unused headers
 -----BEGIN PGP SIGNATURE-----
 
 iF0EABECAB0WIQQbPNTMvXmYlBPRwx7KSWXLKUoMIQUCXbKa4QAKCRDKSWXLKUoM
 ISzJAJ0YpGS7HziGFVRBlcsyRH8QlWCqOQCfb0jIWzhL8pvj9TA01CdU0Axdbwk=
 =GIpp
 -----END PGP SIGNATURE-----

Merge tag 'xilinx-for-v2020.01-part2' of https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze

Xilinx/FPGA changes for v2020.01 part 2

common:
- Fix manual relocation for repeatable commands

arm:
- Also clean up generated dtbos

microblaze:
- Add support for Manual relocation in crypto framework
- Tune and align architecture bootm support

zynq:
- DT sync ups
- Some defconfig updates
- Remove empty board_early_init_f()

zynqmp:
- Clean firmware handing via drivers/firmware/
- DT/defconfig name alignments
- DT cleanups with using firmware based clock driver
- Some defconfig updates
- Add IIO ina226 DT description
- Tune zynqmp_psu_init_minimalize.sh script
- Add single nand mini configuration, e-a2197, m-a2197-02/03 and zcu216

versal:
- Clean firmware handing via drivers/firmware/
- Add gpio support
- Enable DT overlay/USB/CLK/FPGA
- DT updates
- Tune mini configuration

spi:
- gqspi - Remove unused headers
2019-10-25 11:23:46 -04:00
Weijie Gao
77ebea23c3 mmc: mtk-sd: add a dts property cd-active-high for builtin-cd mode
This patch adds a dts property cd-active-high for builtin-cd mode to make
it configurable instead of using hardcoded active-low.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:44 +02:00
Weijie Gao
3c92a957ee mmc: mtk-sd: add support for MediaTek MT7620/MT7628 SoCs
This patch adds mmc support for MediaTek MT7620/MT7628 SoCs.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:44 +02:00
Weijie Gao
877d03903c net: mt7628-eth: add support to isolate LAN/WAN ports
This patch add support for mt7628-eth to isolate LAN/WAN ports mainly to
prevent LAN devices from getting IP address from WAN.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:44 +02:00
Weijie Gao
c88ee3ea0a net: mt7628-eth: free rx descriptor on receiving failure
When received a packet with an invalid length recorded in rx descriptor,
we should free this rx descriptor to allow us to continue to receive
following packets.
Without doing so, u-boot will stuck in a dead loop trying to process this
invalid rx descriptor.

This patch adds a call to mt7628_eth_free_pkt() after received an invalid
packet length.

Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:44 +02:00
Weijie Gao
f079321009 net: mt7628-eth: make phy link up detection optional via DT
The mt7628 has an embedded ethernet switch (5 phy ports + 1 cpu port).
Although in IOT mode only port0 is usable, the phy0 is still connected
to the switch, not the ethernet gmac directly.

This patch rewrites it and makes it optional. It can be turned on by adding
mediatek,poll-link-phy = <?> explicitly into the eth node. By default the
driver is switch mode with all 5 phy ports working without link detection.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:44 +02:00
Weijie Gao
2734fdef5c net: mt7628-eth: remove hardcoded gpio settings and regmap-based phy reset
This patch removes hardcoded gpio settings as they have been replaced by
pinctrl in dts, and also replaces regmap-based phy reset with a more
generic reset controller.

Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:44 +02:00
Weijie Gao
4cce51141f phy: mt76x8-usb-phy: add slew rate calibration and remove non-mt7628 part
This patch adds slew rate calibration for mt76x8-usb-phy, removes code
which belongs to mt7620, and gets rid of using syscon and regmap by using
clock driver and reset controller.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:44 +02:00
Weijie Gao
f7ae6b682c reset: add reset controller driver for MediaTek MIPS platform
This patch adds reset controller driver for MediaTek MIPS platform and
header file for mt7628.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:44 +02:00
Weijie Gao
3fad441c54 pinctrl: add support for MediaTek MT7628
This patch adds pinctrl support for mt7628, with a file for common pinmux
functions and a file for mt7628 which has additional support for pinconf.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:44 +02:00
Weijie Gao
43405e009b spi: mt7621-spi: restore default register value after each xfer
Currently this driver uses a different way to implement the spi xfer,
by modifying some fields of two registers, which is incompatible with the
MTK's original SDK linux driver. This will cause the flash data being
damaged by the SDK driver.

This patch lets the mt7621_spi_set_cs() restore the original register
fields after cs deactivated.

Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:44 +02:00
Weijie Gao
54a6b8e793 spi: mt7621-spi: remove data cache and rewrite its xfer function
The mt7621 spi controller supports continuous generic half-duplex spi
transaction. There is no need to cache xfer data at all.

To achieve this goal, the OPADDR register must be used as the first data
to be sent. And follows the eight generic DIDO registers. But one thing
different between OPADDR and DIDO registers is OPADDR has a reversed byte
order.

With this patch, any amount of data can be read/written in a single xfer
function call.

Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:44 +02:00
Weijie Gao
f09978566b spi: mt7621-spi: use clock frequency from clk driver
This patch lets the spi driver to use clock provided by the clk driver
since the new clk-mt7628 driver provides accurate sys clock frequency.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:44 +02:00
Weijie Gao
77ed3c42fe clk: add clock driver for MediaTek MT76x8 platform
This patch adds a clock driver for MediaTek MT7628/7688 SoC.
It provides clock gate control as well as getting clock frequency for
CPU/SYS/XTAL and some peripherals.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:44 +02:00
Weijie Gao
44fa676e58 serial: serial_mtk: add non-DM version for SPL
This patch adds non-DM version for mtk hsuart driver and makes it
compatible with ns16550a driver in configuration.
This is needed in SPL with CONFIG_SPL_DM disabled for reducing size.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:43 +02:00
Weijie Gao
99ced5331b serial: serial_mtk: enable FIFO and disable flow control
This patch adds codes to enable FIFO and disable flow control taken from
ns16550 driver.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-10-25 17:20:43 +02:00
William Zhang
e365de9051 drivers: nand: brcmnand: fix nand_chip ecc layout structure
The current brcmnand driver is based on 4.18 linux kernel which uses
mtd_set_ooblayout to set ecc layout. But nand base code in u-boot is from
old kernel which does not use this new API and expect nand_chip.ecc.layout
structure to be set. This cause nand_scan_tail function running into a bug
check if the device has a different oob size than the default ones.

This patch ports the brcmstb_choose_ecc_layout function from kernel 4.6.7
that supports the ecc layout struture and replaces the mtd_set_ooblayout
method

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>
2019-10-25 17:20:43 +02:00
Álvaro Fernández Rojas
a9f80cf9ad nand: brcm: add BCM6368 support
This adds support for BCM6368, BCM6328, BCM6362 and BCM63268 SoCs.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2019-10-25 17:20:43 +02:00
Fabio Estevam
395ec74186 spi-nor-ids: Add support for Adesto AT25SL321
Add an entry for the Adesto AT25SL321 SPI NOR chip.

This SPI NOR chip is found in the Embedded Artist i.MX7ULP COM board.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:48:32 +05:30
Frieder Schrempf
832ce20278 mtd: spi: Clean up usage of CONFIG_SPI_FLASH_MTD
Most boards currently use SPI_FLASH_MTD only in U-Boot proper, not in
SPL. They often rely on hacks in the board header files to include
this option conditionally. To be able to fix this, we previously
introduced a separate option SPL_SPI_FLASH_MTD.

Therefore we can now adjust the Makefile and change the code in
sf_probe.c and sf_internal.h to use CONFIG_IS_ENABLED(SPI_FLASH_MTD).

We also need to move all occurences of CONFIG_SPI_FLASH_MTD from the
header files to the according defconfigs. The affected boards are
socfpga, aristainetos, cm_fx6, display5, ventana, rcar-gen2, dh_imx6
and da850evm.

We do this all in one patch to guarantee bisectibility.

This change was tested with buildman to make sure it does not
introduce any regressions by comparing the resulting binary sizes.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Acked-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:48:32 +05:30
Vignesh Raghavendra
73d74b5881 spi-nor: spi-nor-ids: Add USE_FSR flag for mt25q* and n25q* entry
n25q* and mt25q* (both 256Mb and 512Mb) flashes support Flag status
register that indicates various errors that may be encountered during
erase/write operations. Therefore add USE_FSR flag wherever missing.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:48:32 +05:30
Vignesh Raghavendra
8651593a8c spi-nor: spi-nor-ids: Add entries for mt25q variants
mt25q* flashes support stateless 4 byte addressing opcodes. Add entries
for the same. These flashes have bit 6 set in 5th byte of READ ID
response when compared to n25q* variants.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:48:32 +05:30
Vignesh Raghavendra
d66e07cdf9 spi-nor: spi-nor-ids: Disable SPI_NOR_4B_OPCODES for n25q512* and n25q256*
Per datasheets of n25q256* and n25q512* not all variants of n25q256* and
n25q512* support 4 Byte stateless addressing opcodes. Therefore drop
SPI_NOR_4B_OPCODES flag from these entries

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Tested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Tested-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:48:32 +05:30
Ley Foon Tan
e7e05fcb3e spi: designware_spi: Disable and free clock when remove driver
Disable and free clock when remove driver.

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Acked-by: Marek Vasut <marex@denx.de>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:48:32 +05:30
Vignesh Raghavendra
2a2174d3da mtd: spi-nor-core: Replace MTD_SPI_NOR_USE_4K_SECTORS with SPI_FLASH_USE_4K_SECTORS
U-Boot uses CONFIG_SPI_FLASH_USE_4K_SECTORS to enable 4K small sector
support. Use that instead of MTD_SPI_NOR_USE_4K_SECTORS.

Reported-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:48:32 +05:30
Vignesh Raghavendra
cc9118757f mtd: spi-nor-core: Use dev_err for reporting erase/write failures
Use dev_err() when reporting reason for erase/write failures so that
users can be made aware of the reason for failure.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:48:32 +05:30
Frieder Schrempf
64f736c901 mtd: spi: Add a new option SPL_SPI_FLASH_MTD to Kconfig
To allow SPI_FLASH_MTD being enabled separately in SPL we add a new
option. The only user currently is the stm32mp15_basic board.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Acked-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:48:31 +05:30
Jagan Teki
dc738248db spi: Kconfig: Enable SPI_SUNXI for SUNXI
SPI_SUNXI driver is fully dm-aware and the Allwinner
architecture kconfig would have logic to enable the
DM_SPI. So, select default spi sunxi driver for
sunxi architecture.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:48:31 +05:30
Jagan Teki
77df1a9b66 mtd: spi: Kconfig: Imply SPI_FLASH if DM_SPI_FLASH
DM_SPI_FLASH should require spi flash interface code for dm
version, so imply SPI_FLASH core by default if any board
enabled DM_SPI_FLASH.

This overcome the explicit enablement of CONFIG_SPI_FLASH on
respective boards when DM_SPI_FLASH being used.

Acked-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:48:31 +05:30
Bin Meng
4b06000395 dm: spi: Change cs_info op to return -EINVAL for invalid cs num
We need distinguish the following two situations in various SPI APIs:

- given chip select num is invalid
- given chip select num is valid, but no device is attached

Currently -ENODEV is returned for both cases.

For the first case, it's more reasonable to return -EINVAL instead of
-ENODEV for invalid chip select numbers.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:48:31 +05:30
Bin Meng
4dd520b36b dm: spi: Return 0 if driver does not implement ops->cs_info
If an SPI controller driver does not implement ops->cs_info, that
probably means any chip select number could be valid, hence let's
return 0 for spi_cs_info().

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> # SoPine
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:48:31 +05:30
Jagan Teki
0c8e605670 spi: Kconfig: Add help text
Add detailed help text for SPI support.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:48:31 +05:30
Jagan Teki
97009d543d mtd: spi-nor: ids: Add is25wp256 chip
Add is25wp256, chip to spi-nor id table.

Tested on SiFive FU540 board.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-25 00:48:31 +05:30
Jagan Teki
989fd97fe5 mtd: spi: Kconfig: Update CONFIG_SPI_FLASH
1) CONFIG_SPI_FLASH is not just a legacy code, but it has common
   core code which handle both dm and non-dm spi flash code. So
   fix the info text to make it clear globally.

2) Since it's flash core it shouldn't depends on legacy SPI,
   so remove the 'depends on SPI'

Cc: Vignesh R <vigneshr@ti.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-10-25 00:42:57 +05:30
Tom Rini
17fd9915a4 Merge branch '2019-10-24-UFS-support'
- Add Universal Flash Storage (UFS) support
2019-10-24 09:51:48 -04:00
Ye Li
235f5e158e ehci-mx6: Update EHCI driver to support OTG0 on i.MX7ULP
The ULP has two USB controllers. These two controllers have similar NC
registers layout as i.MX7D. But OTG0 uses UTMI PHY simliar as i.MX6, not
the integrated PHY on i.MX7D. The OTG1 needs off-chip HSIC PHY or ULPI PHY
to work.

This patch only supports OTG0 with UTMI PHY.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
2019-10-24 15:31:13 +02:00
Igor Opaniuk
1198a104d3 usb: ehci-mx6: Fix bus enumeration for iMX7 SoCs
This fixes the issues with calculation of controller indexes in
ehci_usb_bind() for iMX7, as USB controllers on iMX7 SoCs aren't
placed next to each other, and their addresses incremented by 0x10000.

Example of USB nodes for iMX7S/D:

usbotg1: usb@30b10000 {
    compatible = "fsl,imx7d-usb", "fsl,imx27-usb";
    reg = <0x30b10000 0x200>;
           ^^^^^^^^^^
....
usbotg2: usb@30b20000 {
    compatible = "fsl,imx7d-usb", "fsl,imx27-usb";
    reg = <0x30b20000 0x200>;
           ^^^^^^^^^^
....

usbh: usb@30b30000 {
    compatible = "fsl,imx7d-usb", "fsl,imx27-usb";
    reg = <0x30b30000 0x200>;
           ^^^^^^^^^^
....

Which was leading to usb enumeration issues:
Colibri iMX7 # usb start
starting USB...
Bus usb@30b10000: USB EHCI 1.00
Bus usb@30b20000: probe failed, error -22
scanning bus usb@30b10000 for devices... 1 USB Device(s) found
       scanning usb for storage devices... 0 Storage Device(s) found

Fixes: 501547cec1("usb: ehci-mx6: Fix bus enumeration for DM case")
Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
2019-10-24 15:31:13 +02:00
Michal Simek
039c740d66 arm64: zynqmp: Switch to xlnx-zynqmp-clk header
Use prepared header instead of hardcoded values.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-10-24 13:37:02 +02:00
T Karthik Reddy
ef92ed26a5 drivers: crypto: rsa_mod_exp: Add manual relocation for ops->mod_exp()
This patch adds manual relocation for Modular Exponentiation if
CONFIG_NEEDS_MANUAL_RELOC is enabled.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-10-24 13:37:02 +02:00
Michal Simek
3a79c6052a spi: zynqmp: Remove unused platform headers
There is no reason to include clk.h and hardware.h headers.
Driver doesn't require them.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-10-24 13:37:02 +02:00
Shubhrajyoti Datta
98927daada gpio: zynq: Add gpio driver support for PMC gpio
This patch adds support for gpio driver for pmc gpio.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-10-24 13:37:01 +02:00
Ashok Reddy Soma
982485214f gpio: zynq: Add gpio driver support for Versal
This patch adds support for gpio driver for versal platform

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-10-24 13:37:01 +02:00
Michal Simek
44dccd5924 firmware: zynqmp: Clean up zynqmp_power_probe
Fix error debug messages to be more accurate and aligned with debug message
style in the whole file.
And do not initialize ret variable because it is initialized later on and
it is just additional step.

Fixes: 1327d1678b ("firmware: zynqmp: Add zynqmp-power support")
Reported-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
2019-10-24 13:37:01 +02:00
Michal Simek
9bed8a63f7 firmware: zynqmp: Report error when xilinx_pm_request called from EL3
Function should report error when called in EL3 context. Also report it as
error instead 0 (success).

Reported-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
2019-10-24 13:37:01 +02:00
Michal Simek
403619515e arm64: zynqmp: Convert invoke_smc() to xilinx_pm_request()
Remove macros which use PM_SIP_SVC offset and convert invoke_smc() to
xilinx_pm_request() which do calculation with PM_SIP_SVC already.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-10-24 13:37:01 +02:00
Michal Simek
6596270ecb arm64: versal: Rename versal_pm_request to xilinx_pm_request
Use generic name instead of Versal specific because this should be also
used on ZynqMP.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-10-24 13:37:01 +02:00
Michal Simek
866225f394 arm64: xilinx: Move firmware functions from platform to driver
versal_pm_request() and invoke_smc() are almost the same. Only one
difference is that versal_pm_request is adding PM_SIP_SVC offset to api_id.
The patch is moving platform implementation to firmware driver code for
synchronization.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Luca Ceresoli <luca@lucaceresoli.net>
2019-10-24 13:37:01 +02:00
Michal Simek
0f3604a2b3 arm64: versal: Clean pm_api_id usage
Copy enum values from platform code to firmware code. IDs are shared
between ZynqMP and Versal.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-10-24 13:37:01 +02:00
Eugen Hristev
f81649586d misc: microchip_flexcom: introduce microchip_flexcom driver
The Microchip Flexcom is just a wrapper which embeds a SPI controller,
an I2C controller and an USART.
Only one function can be used at a time and is chosen at boot time according
to the device tree.
The bindings are kept as in Linux.
The driver registers to MISC_UCLASS.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
2019-10-24 13:01:57 +03:00
Jean-Jacques Hiblot
2bbc1bbf5d phy: keystone-usb: handle the transition of the USB power domain
There is no proper power domain support for the keystone platforms.
However we need to turn off the USB domains before jumping to linux or it
fail to boot (observed with k2e and k2l platforms).
This can be done in the PHY driver as it is dedicated only to the keystone
platforms and matches the required on/off sequence.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-24 11:28:17 +02:00
Jean-Jacques Hiblot
3e6ab7327f usb: dwc3: Kconfig: get rid of obsolete mode selection
The mode selection for the DWC3 is kind of obsolete. The driver does not
have to be host only or gadget only. This choice is confusing.
All the remaining callers of dwc3_uboot_init() explicitly set dr_mode
before calling the function, so none rely on a default behavior.

Remove the choice menu and keep only the USB_DWC3_GADGET option. Enable it
by default if USB_GADGET and USB_DWC3 are enabled.
It must be disabled for the evb-rk3328 as it uses DWC2 for the gadget and
DWC3 for the host.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-24 11:28:17 +02:00
Jean-Jacques Hiblot
ba6c5f7a28 usb: dwc3: Add dwc3_of_parse() to get quirks information from DT
Add a new function that read quirk and configuration information from the
DT. The goal is to allow platforms using their own version of DWC3 driver
to migrate to the generic DWC3 driver.
The function is adapted from the function dwc3_get_properties() in the
linux dwc3 driver introduced in commit c5ac6116db35d.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-24 11:28:17 +02:00
Jean-Jacques Hiblot
1a63e5e5fb usb: dwc3-generic: if no max speed is specified in DT, assume super speed
There is no need to fail if the maximum speed is not specified.
If the speed is not specified, do the same as linux and assume super speed.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-24 11:28:17 +02:00
Jean-Jacques Hiblot
b575e90916 usb: dwc3-generic: add a new host driver that uses the dwc3 core
Currently the host driver used by dwc3-generic is "xhci-dwc3". This is
a functional driver but it doesn't use the dwc3 core and, in particular,
it lacks some bits that may be important.
For example on the k2 platforms, it is important that the phy are properly
suspended when the USB is not used anymore. The dwc3 core also has a
partial support for quirks.
The new driver can be used as a drop-in replacement for "xhci-dwc3".

In terms of implementation, it may seem strange that 2 private structures
dwc3_generic_host_priv and dwc3_generic_priv) are used. The reason for this
is simply that the xhci layer expects a struct xhci_ctrl at the beginning
of the private data and it seemed wasteful to include it also for the
peripheral case.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-24 11:28:17 +02:00
Jean-Jacques Hiblot
1af590df16 usb: dwc3-generic: factorize code
Factor code for re-usability.
This is another step toward adding host support.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-24 11:28:17 +02:00
Jean-Jacques Hiblot
3a38a0adb9 usb: dwc3-generic: use platdata
Separate platform data from the private data.
This is one step toward adding host support.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-24 11:28:17 +02:00
Jean-Jacques Hiblot
33a99b4365 usb: dwc3: always use the inlined version of dwc3_host_init/dwc3_host_exit
No one is actually implementing those functions.
We could remove calls to these altogether, but it does not really hurt to
keep the empty inlined version at the moment and it satisfies a symmetry
with the gadget mode.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-24 11:28:17 +02:00
Jean-Jacques Hiblot
1708a12377 usb: xhci: move xhci.h to include usb
The xhci.h header file is currently located under drivers/usb/xhci
Move it to the include/usb folder to make it available to drivers that
are not under drivers/usb/xhci

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-24 11:28:17 +02:00
Jean-Jacques Hiblot
bbe3d4a6c1 usb: dwc3: switch to peripheral mode when exiting
This allow the phy to enter idle and then suspend.
the K2 platforms require the PHY to be suspended before the USB domain
clock can be turned off.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-24 11:28:16 +02:00
Jean-Jacques Hiblot
a8973731a4 usb: host: remove the xhci-zynqmp driver
This driver is not used anymore.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-24 11:28:16 +02:00
Vignesh Raghavendra
c2dfd0a4d8 mtd: Add TI HyperBus Memory Controller driver
AM654/J721e has HyperBus Memory Controller that supports HyperFlash and
HyperRAM devices. It provides a memory mapped interface to interact with
these devices. Add a driver to support the same.
Driver calibrates the controller, setups up for MMIO access and probes
HyperFlash child node.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2019-10-24 09:49:10 +02:00
Vignesh Raghavendra
d75eacf9b8 mtd: cfi_flash: Use CONFIG_SYS_MONITOR_BASE only when defined
Make use of CONFIG_SYS_MONITOR_BASE only when available to avoid build
error when CONFIG_SYS_MONITOR_BASE is not defined.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2019-10-24 09:48:53 +02:00
Faiz Abbas
4390eaf676 ufs: Add glue layer driver for TI J721E devices
Add glue layer driver for the controller present on TI's J721E devices.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-10-23 20:47:12 -04:00
Faiz Abbas
ef5fb5a84c ufs: Add Support for Cadence platform UFS driver
Add Support for the platform driver for the Cadence device present on
TI's J721e device.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-10-23 20:47:12 -04:00
Faiz Abbas
7feafb0ae4 ufs: Add Initial Support for UFS subsystem
Add Support for UFS Host Controller Interface (UFSHCI) for communicating
with Universal Flash Storage (UFS) devices. The steps to initialize the
host controller interface are the following:

- Initiate the Host Controller Initialization process by writing to the
Host controller enable register.
- Configure the Host Controller base address registers by allocating a
host memory space and related data structures.
- Unipro link startup procedure
- Check for connected device
- Configure UFS host controller to process requests

Also register this host controller as a SCSI host controller.

Taken from Linux Kernel v5.2 (drivers/scsi/ufs/ufshcd.c) and ported to
U-boot.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-10-23 20:47:12 -04:00
Faiz Abbas
8fbac8e23e scsi: Add dma direction member to command structure
Some SCSI devices like UFS use DMA for executing scsi commands and hence
need to know the direction of transfer of the dma. Add a dma_dir element
to the command structure to facilitate this.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-10-23 20:47:12 -04:00
Faiz Abbas
d48f00ed11 scsi: Retry inquiry 3 times to overcome Unit Attention condition
The UFS SCSI device LUNs are observed to return failure the first time a
unit ready inquiry is sent and pass on the second try. Send this
inquiry 3 times to make sure device is ready.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-10-23 20:47:12 -04:00
Faiz Abbas
4ff572830e scsi: Add max_bytes_per_req to scsi_platdata
Add max_bytes_per_req to scsi_platdata to enable the host driver to limit
the number of bytes that can be read/written per request.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
2019-10-23 20:47:12 -04:00
Faiz Abbas
66c54f1a3e scsi: Simplify scsi_read()/_write()
With no non-DM driver using scsi_read()/_write() APIs, remove
the legacy implementations.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
[trini: Reorder slightly and mark scsi_read/write behind BLK test to
avoid warnings]
Signed-off-by: Tom Rini <trini@konsulko.com>
2019-10-23 20:47:12 -04:00
Jean-Jacques Hiblot
9a52be129c test: clk: test clock self assignment
Make sure that the clock self-assignment works by having a clock of
clk-sbox be configured automatically when clk-sbox is probed.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-22 16:14:05 +02:00
Jean-Jacques Hiblot
fd1ba29652 drivers: clk: Fix using assigned-clocks in the node of the clock it sets up
This fixes the case where assigned-clocks is used to define a clock
defaults inside this same clock's node. This is used sometimes to setup a
default parents and/or rate for a clock.

example:
muxed_clock: muxed_clock {
	clocks = <&clk_provider 0>, <&clk_provider 1>;
	#clock-cells = <0>;
	assigned-clocks = <&muxed_clock>;
	assigned-clock-parents = <&clk_provider 1>;
};

It doesn't work in u-boot because the assigned-clocks are setup *before*
the clock is probed. (clk_set_parent() will likely crash or fail if called
before the device probe function)
Making it work by handling "assigned-clocks" in 2 steps: first before the
clk device is probed, and then after the clk device is probed.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-22 16:14:05 +02:00
Jean-Jacques Hiblot
dd2e0ce2a4 test: clk: Update tests to also check the managed API
Add a few more clocks the clk_sandbox clock provider and get them using
the managed API.
Make sure they are released when the device is removed.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-22 16:14:05 +02:00
Jean-Jacques Hiblot
52720c536f drivers: clk: Add a managed API to get clocks from the device-tree
Add devm_clk_get(), devm_clk_get_optional() to get clocks from the
device-tree. The clocks is automatically released and the data structure
freed when the device is unbound.
Also add devm_clk_put() to release the clock and free the data structure
manually.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-22 16:14:05 +02:00
Jean-Jacques Hiblot
8a1661f20e drivers: clk: Handle gracefully NULL pointers
Prepare the way for a managed CLK API by handling NULL pointers without
crashing nor failing.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-22 16:14:05 +02:00
Lukasz Majewski
727fa4539c clk: Add support for I2C clocks on NXP's imx6q SoC which use CCF
This change adds support for I2C clock modeled in CCF. This code intention
is to only enable those clocks in the I2C driver with default settings.
For that reason the "busy" versions of clocks reuse the generic approach
and would need to be updated when one wants to adjust the I2C clock
frequency in U-Boot.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
2019-10-22 16:14:05 +02:00
Jean-Jacques Hiblot
02e2a2ad2f clk: Fix error check in clk_set_default_parents()
According to the documentation in clk.h, clk_set_parent() return the new
rate of the clock or a negative error code.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2019-10-22 16:14:05 +02:00