Commit graph

30 commits

Author SHA1 Message Date
Neil Armstrong
77863d43eb mmc: meson-gx: move arch header to local header
Move the asm/arch-meson/sd_emmc.h to a local meson_gx_mmc.h,
remove the useless if/then and fix the meson_gx_mmc.c include.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2020-11-12 14:31:29 +01:00
Neil Armstrong
66d9427403 phy: meson-gxl: remove invalid USB3 PHY driver
The registers which are managed by the meson-gxl-usb3 PHY driver are
actually "USB control" registers (which are "glue" registers which
manage OTG detection and routing of the OTG capable port between the
DWC2 peripheral-only controller and the DWC3 host-only controller).

Drop the meson-gxl-usb3 PHY driver now that the dwc3-meson-gxl-usb
driver supports the USB control registers on GXL and GXM SoCs (these
were previously managed by the meson-gxl-usb3 PHY driver).

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2020-10-05 17:59:45 +02:00
Neil Armstrong
46eddbc58f usb: dwc3: add Amlogic GXL & GXL DWC3 Glue
The USB support was initialy done with a set of PHYs and dwc3-of-simple
because the architecture of the USB complex was not understood correctly
at the time (and proper documentation was missing...).

But with the G12A family, the USB complex was correctly understood and
implemented correctly.

This adds a proper driver for the glue, based on the G12A one, but with
enough changes to require a different driver in U-Boot.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2020-10-05 17:59:45 +02:00
Simon Glass
cd93d625fd common: Drop linux/bitops.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Neil Armstrong
838c0af9d2 phy: meson-gxl-usb: add set_mode call to force switch to peripheral mode
Add set_mode function in the Amlogic GXL PHYs that will be called by
the arch code to switch PHYs from/to gadget mode.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2020-04-20 14:19:10 +02:00
Neil Armstrong
b1dd7debea arm: meson: add sm command to retrieve the reboot reason
The Secure Monitor offers multiple services, like returning the
SoC unique serial number, and can provide the "reboot reason" as
set by the previous booted system.

This extends the Amlogic specific "sm" cmd with a "reboot_reason" subcommand
to print or set a specified environment variable with the reboot reason in
human readable format.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2019-08-12 10:02:30 +02:00
Neil Armstrong
dad258fadd ARM: meson: add unique MAC address generation
Add support for generating an unique MAC address using the SoC internal
serial number from the Secure Monitor interface.

The algorithm generates an unicast locally administered 6bytes minus 2bits
address using an crc16 of the serial for the top 16bits with the lower 2 bits
masked to setup the unicast locally administered property and a crc24 for
the lower 24bits.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2019-07-04 16:04:59 +02:00
Neil Armstrong
0ef8e4069e ARM: meson: sm: Add secure monitor calls to retrieve SoC serial number
The Secure Monitor interface permits retrieving the SoC Serial Number,
add a function to retrieve it.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2019-07-04 16:04:59 +02:00
Neil Armstrong
92d911b2ee mach-meson: g12a: add DWC2 peripheral mode support
Adds support for Amlogic G12A USB Device mode.

The DWC2 Controller behind the Glue can be connected to an OTG
capable PHY. The Glue setups the PHY mode.

This patch implements Device mode support by adding a board_usb_init/cleanup
setting up the DWC2 controller and switch the OTG capable port to Device
before starting the DWC2 controller in Device mode.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2019-05-09 10:38:32 +02:00
Jerome Brunet
17b7efe25b ARM: meson: add G12a support
Add support for the Amlogic G12A SoC, which is a mix between the
new physical memory mapping of AXG and the functionnalities of
the previous Amlogic GXL/GXM SoCs.

To handle the internal ethernet PHY, the Amlogic G12A SoCs now
embeds a dedicated PLL to feed the internal PHY.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2019-04-23 11:19:09 +02:00
Jerome Brunet
912af8423f clk: meson: add g12a support
Add basic support for the Amlogic G12A clock controller based on
the AXG driver.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2019-04-23 11:19:09 +02:00
Neil Armstrong
3bed422094 video: Add Meson Video Processing Unit Driver
This adds video output support for Amlogic GXBB/GXL/GXM chips.
The supported ports are CVBS and HDMI (based on DW_HDMI).

When using HDMI, only DMT modes are supported.

There is support for simple-framebuffer (CONFIG_VIDEO_DT_SIMPLEFB)

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Jorge Ramire-Ortiz <jramirez@baylibre.com>
Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
[narmstrong: fixed defines alignment in meson_canvas.c]
Reviewed-by: Anatolij Gustschin <agust@denx.de>
2019-01-31 09:35:01 +01:00
Neil Armstrong
d96a782d09 ARM: meson: Add boot device discovery
The Amlogic Meson SoCs ROM supports a boot over USB with a custom protocol.

When no other boot medium are available (or by forcing the USB mode), the
ROM sets the primary USB port as device mode and waits for a Host to
enumerate.

When enumerated, a custom protocol described at [1] permits writing to
memory and execute some specific FIP init code to run the loaded
Arm Trusted Firmware BL2 and BL3 stages before running the BL33 stage.

In this mode, we can load different binaries that can be used by U-boot
like a script image file.

This adds support for a custom USB boot stage only available when the
boot mode is USB and the script file at a pre-defined address is valid.
This support was heavily copied from the Sunxi Allwinner FEL U-Boot support.

The tool pyamlboot described at [2], permits using this boot mode on boards
exposing the first USB port, either as OTG or Host port.

[1] https://github.com/superna9999/pyamlboot/blob/master/PROTOCOL.md
[2] https://github.com/superna9999/pyamlboot/blob/master/README.md

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-11-26 14:40:52 +01:00
Neil Armstrong
f6eb68b978 clk: Add clock driver for AXG
This patch adds a minimal clock driver for the Amlogic AXG SoC to handle
the basic gates and PLLs.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-11-26 14:40:52 +01:00
Neil Armstrong
485bba395e ARM: meson: Add support for AXG family
This patch adds support for the Amlogic AXG SoC, which is very close from
the Amlogic GXL SoCs with :
- Same 4xCortex-A53 CPUs but clocked at 1.2GHZ max
- DDR Interface limited to DDR4 16bit
- The whole physical register address space has been moved to 0xfxxxxxxx
- The pinctrl setup has changed
- The clock tree is different enough to use a different driver

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-11-26 14:40:52 +01:00
Jerome Brunet
33e3378091 ARM: meson: rework soc arch file to prepare for new SoC
We are about to add support for the Amlogic AXG SoC. While very close to
the Gx SoC family, we will need to handle a few thing which are different
in this SoC. Rework the meson arch directory to prepare for this.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-11-26 14:40:52 +01:00
Beniamino Galvani
2e668af553 meson: use the clock driver
Use the clk framework to initialize clocks from drivers that need them
instead of having hardcoded frequencies and initializations from board
code.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-06-19 07:31:47 -04:00
Beniamino Galvani
c0fc1e215c clk: add Amlogic meson clock driver
Introduce a basic clock driver for Amlogic Meson SoCs which supports
enabling/disabling clock gates and getting their frequency.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-06-19 07:31:47 -04:00
Neil Armstrong
f0f3762cb7 ARM: meson: rename GXBB to GX
Taking into account the Amlogic Family name starts with GX, including
the GXBB, GXL and GXM SoCs.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-05-08 09:07:34 -04:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Neil Armstrong
c7be3e5a79 ARM: arch-meson: build memory banks using reported memory from registers
As discussed at [1], the Amlogic Meson GX SoCs can embed a BL31 firmware
and a secondary BL32 firmware.
Since mid-2017, the reserved memory address of the BL31 firmware was moved
and grown for security reasons.

But mainline U-Boot and Linux has the old address and size fixed.

These SoCs have a register interface to get the two firmware reserved
memory start and sizes.

This patch adds a dynamic reservation of the memory zones in the device tree bootmem
reserved memory zone used by the kernel in early boot.
To be complete, the memory zones are also added to the EFI reserved zones.

Depends on patchset "Add support for Amlogic GXL Based SBCs" at [2].

[1] http://lists.infradead.org/pipermail/linux-amlogic/2017-October/004860.html
[2] http://lists.infradead.org/pipermail/linux-amlogic/2017-November/005410.html

Changes since v1:
- switched the #if to if(IS_ENABLED()) to compile all code paths
- renamed function to meson_board_add_reserved_memory()
- added a mem.h header with comment
- updated all boards ft_board_setup()

Changes since RFC v2:
- reduced preprocessor load
- kept Odroid-C2 static memory mapping as exception

Changes since RFC v1:
- switch to fdt rsv mem table and efi reserve memory
- replaced in_le32 by readl()

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
[trini: Fix warning on khadas-vim over missing <asm/arch/mem.h>
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-12-04 10:17:29 -05:00
Neil Armstrong
6915b10331 ARM: arch-meson: add ethernet common init function
Introduce a generic common Ethernet Hardware init function
common to all Amlogic GX SoCs with support for the
Internal PHY enable for GXL SoCs.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-12-04 09:59:02 -05:00
Beniamino Galvani
456efb5127 odroid-c2: enable I2C
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
2017-11-20 10:11:44 +01:00
Beniamino Galvani
f8d9ca1833 i2c: add Amlogic Meson driver
Add a driver for the I2C controller available on Amlogic Meson SoCs.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
2017-11-20 10:11:34 +01:00
Neil Armstrong
ea990816fe arm: meson: Add supplementary ethernet registers definitions
On Amlogic Meson GXL/GXM, supplementary ethernet configuration registers
were added to configure the internal RMII PHY interface.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-11-17 07:44:13 -05:00
Beniamino Galvani
2009a8d03f pinctrl: meson: add GPIO support
This commit adds GPIO support to the Amlogic Meson pin controller
driver, based on code from Linux kernel.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
2017-07-26 11:26:48 -04:00
Carlo Caione
937386204d mmc: meson: add MMC driver for Meson GX (S905)
This driver implements MMC support on Meson GX (S905) based systems.
It's based on Carlo Caione's work, changes:
- BLK support added
- general refactoring

Signed-off-by: Carlo Caione <carlo@caione.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Tested-by: Vagrant Cascadian <vagrant@debian.org>
2017-04-14 15:16:06 +09:00
Beniamino Galvani
cfe255611c meson: odroid-c2: enable Ethernet support through the device tree
Remove the device definition from board file, update the driver with
the new compatible property and update config with necessary options.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-09-06 13:18:19 -04:00
Beniamino Galvani
c7757d4695 arm: meson: implement calls to secure monitor
Implement calls to secure monitor to read the MAC address from e-fuse.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
2016-05-27 15:39:47 -04:00
Beniamino Galvani
bfcef28ae4 arm: add initial support for Amlogic Meson and ODROID-C2
This adds platform code for the Amlogic Meson GXBaby (S905) SoC and a
board definition for ODROID-C2. This initial submission only supports
UART and Ethernet (through the existing Designware driver). DTS files
are the ones submitted to Linux arm-soc for 4.7 [1].

[1] https://patchwork.ozlabs.org/patch/603583/

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-27 15:39:47 -04:00