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net: mediatek: add support for MediaTek MT7621 SoC

This patch adds GMAC support for MediaTek MT7621 SoC.
MT7621 has the same GMAC/Switch configuration as MT7623.

Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

net: mediatek: use regmap api to modify ethsys registers

The address returned by regmap_get_range() is not remapped. Directly r/w
to this address is ok for ARM platforms since it's idential to the virtual
address.

But for MIPS platform only virtual address should be used for access.
To solve this issue, the regmap api regmap_read/regmap_write should be used
since they will remap address before accessing.

Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

net: mediatek: remap iobase address

The iobase address from dts node is actually physical address. It's
identical to the virtual address in ARM platform. This is ok because this
driver was used only by ARM platforms (mt7622/mt7623 ...).

But now this driver will be used by mt7621 which is a MIPS SoC. For MIPS
platform the physical address space is mapped to KSEG0 and KSEG1 and this
makes the virtual address apparently not idential to its physical address.

To solve this issue, this patch replaces dev_read_addr with dev_remap_addr
to get the remapped iobase address.

Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

mmc: mediatek: add support for MediaTek MT7621 SoC

This patch adds SDXC support for MediaTek MT7621 SoC

Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

watchdog: add support for MediaTek MT7621 SoC

This patch makes mt7621_wdt driver available for MediaTek MT7621 SoC

Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

gpio: add support for MediaTek MT7621 SoC

This patch makes mt7621_gpio driver available for MediaTek MT7621 SoC

Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

spi: add support for MediaTek MT7621 SoC

This patch makes mt7621_spi driver available for MediaTek MT7621 SoC

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

phy: mtk-tphy: add support for MediaTek MT7621 SoC

This patch makes mtk-tphy driver available for MediaTek MT7621 SoC

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

usb: xhci-mtk: add support for MediaTek MT7621 SoC

This patch makes xhci-mtk driver available for MediaTek MT7621 SoC

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

pinctrl: mtmips: add support for MediaTek MT7621 SoC

This patch adds pinctrl support for MediaTek MT7621 SoC.
The MT7621 SoC supports pinconf, but it is not the same as mt7628.

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

reset: mtmips: add reset controller support for MediaTek MT7621 SoC

This patch adds reset controller bits definition header file for MediaTek
MT7621 SoC

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

clk: mtmips: add clock driver for MediaTek MT7621 SoC

This patch adds a clock driver for MediaTek MT7621 SoC.
This driver provides clock gate control as well as getting clock frequency
for CPU/SYS/XTAL and some peripherals.

Reviewed-by: Sean Anderson <seanga2@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

doc: mediatek: add documentation for mt7621 reference boards

The MT7621 requires external binary blob being executed during u-boot's
boot-up flow. It's necessary to provide a guide here for users to correctly
build the u-boot.

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

mips: mtmips: add two reference boards for mt7621

The mt7621_rfb board supports integrated giga PHYs plus one external
giga PHYs. It also has up to 512MiB DDR3, 16MB SPI-NOR, 3 mini PCI-e x1
slots, SDXC and USB.

The mt7621_nand_rfb board is almost the same as mt7621_rfb board, but it
uses NAND flash and SDXC is not available.

Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

mips: mtmips: add support for MediaTek MT7621 SoC

This patch adds support for MediaTek MT7621 SoC.
All files are dedicated for u-boot.

The default build target is u-boot-mt7621.bin.

The specification of this chip:
https://www.mediatek.com/products/homenetworking/mt7621

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

mips: add support for noncached_alloc()

This patch adds support for noncached_alloc() which was only supported by
ARM platform.

Unlike the ARM platform, MMU is not used in u-boot for MIPS. Instead, KSEG
is provided to access uncached memory. So most code of this patch is copied
from cache.c of ARM platform, with only two differences:
1. MMU is untouched in noncached_set_region()
2. Address returned by noncached_alloc() is converted using KSEG1ADDR()

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

mips: add __image_copy_len for SPL linker script

This patch adds __image_copy_len needed by TPL of MT7621 SoC.
The __image_copy_len represents the binary blob size of both SPL/TPL
binaries. To achieve this, __text_start/end are added for calculation.

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

mips: add more definitions for asm/cm.h

This patch add more definitions needed for MT7621 initialization.
MT7621 needs to initialize GIC/CPC and other related parts.

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

mips: add asm/mipsmtregs.h for MIPS multi-threading

To be compatible with old u-boot used by lots of MT7621 devices, the u-boot
needs to boot-up MT7621's all cores, and all VPES of each core.

This patch adds asm/mipsmtregs.h from linux kernel which is need for
boot-up VPEs.

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

MAINTAINERS: add Ilias Apalodimas to EFI PAYLOAD as co-maintainer

Ilias has since long been reviewing UEFI patches.
Now he has volunteered to assist me in maintaining the sub-system.

Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

efi_loader: suppress executable stack warning

When linking EFI binaries the linker emits:

ld.bfd: warning: lib/efi_loader/efi_crt0.o:
missing .note.GNU-stack section implies executable stack

Suppress the warning.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: memory leak in efi_set_bootdev()

efi_dp_str() allocates memory which should be released after use.

Use %pD printf code. Adjust message wording.

Fixes: d837cb1e3b6b ("efi: Add debugging to efi_set_bootdev()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: expose END device path node

This commit exposes the END device path node.

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: Add statistics page for v2022.07

Our statistics pages have always been generated by gitdm. After
patching gitdm to generate an acceptable Sphinx output for tables,
include that and some other basic formatting here.

Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: environment: Expand on fdt_addr, initrd_addr and loadaddr

- Explain why fdt_addr and initrd_addr should not be set to disable
relocation normally.
- Provide some advice on the typical loadaddr default value.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

doc: environment: Drop u-boot_addr_r

This variable is never set nor explained why it would be set, drop it.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

doc: Add man page for dumpimage

This tool seems a bit underloved. Unfortunately, it seems to be missing
support for FIT images. Alas...

Add a man page documenting it. The example is taken from commit a804b5ce2d
("Add dumpimage, a tool to extract data from U-Boot images").

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

doc: mkimage: Further document -o and -R

Despite the original description of these options, they are not always
image names, or even files. Some image types use these options to convey
configuration directly. Re-document these options as configuration options.

Additionally, add a new section documenting the format of the configuration
for each image type which uses it. In general, if configuration is used
directly (without a separate file) I have added documentation for it. If
the configuration points to a separate file, I have referenced that file's
documentation. Where there is no such documentation, I have added it.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

mkimage: Add long options

The mkimage command has had many options added over the years.
Unfortunately, we are starting to run out of short options. Recent options
don't have any obvious relation to their meaning (e.g. -o/-g). Fortunately,
long options exist. Add long options for each current short option.

For the curious, the remaining short options are HIkLmMPQSuUwWXyYzZ.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

doc: mkimage: Remove AUTHORS section

Per man-pages(7), "use of an AUTHORS section is strongly discouraged."
Remove it, and instead add some copyright notices and an SPDX. The default
license for U-Boot is GPL2, so that's what I put. The copyright dates are
based on the commit dates.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>