Commit Graph

73878 Commits

Author SHA1 Message Date
Trevor Woerner
e57c7c5c42 get_maintainer.pl: update from Linux kernel v5.13-rc6
Update U-Boot's version of scripts/get_maintainer.pl to sync it up with the
latest changes to the Linux kernel's version of the same script.

The last sync was with Linux kernel version v4.16. The commits to the kernel's
get_maintainer.pl since then (starting with the most recent) are:

	6343f6b71f83 get_maintainer: exclude MAINTAINERS file(s) from --git-fallback
	cdfe2d220476 get_maintainer: add test for file in VCS
	e33c9fe8b80c get_maintainer: fix unexpected behavior for path/to//file (double slashes)
	0c78c0137621 get_maintainer: add email addresses from .yaml files
	0ef82fcefb99 scripts/get_maintainer.pl: deprioritize old Fixes: addresses
	ef0c08192ac0 get_maintainer: remove uses of P: for maintainer name
	2f5bd343694e scripts/get_maintainer.pl: add signatures from Fixes: <badcommit> lines in commit message
	49662503e8e4 get_maintainer: add ability to skip moderated mailing lists
	0fbd75fd7fee get_maintainer: allow option --mpath <directory> to read all files in <directory>
	5f0baf95b1ed get_maintainer.pl: add -mpath=<path or file> for MAINTAINERS file location
	31bb82c9caa9 get_maintainer: allow usage outside of kernel tree
	0455c74788fd get_maintainer: improve patch recognition
	882ea1d64eb3 scripts: use SPDX tag in get_maintainer and checkpatch

Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2021-07-14 16:57:35 -04:00
Heinrich Schuchardt
e94ef57952 lib: move rtc-lib.c to lib
Function rtc_to_tm() is needed for FAT file system support even if we don't
have a real time clock. So move it from drivers/ to lib/.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2021-07-14 16:57:35 -04:00
Ming Liu
7c39799dec tools: image-host: fix wrong return value
The return value '-ENOSPC' of fit_set_timestamp function does not match
the caller fit_image_write_sig's expection which is '-FDT_ERR_NOSPACE'.

Fix it by not calling fit_set_timestamp, but call fdt_setprop instead.

This fixes a following mkimage error:
| Can't write signature for 'signature@1' signature node in
| 'conf@imx6ull-colibri-wifi-eval-v3.dtb' conf node: <unknown error>
| mkimage Can't add hashes to FIT blob: -1

Signed-off-by: Ming Liu <liu.ming50@gmail.com>
Tested-by: Igor Opaniuk <igor.opaniuk@foundries.io>
2021-07-14 16:57:35 -04:00
Sven Roederer
9c70237f19 tools/fitimage: add missing linebreak for some messages
Add a linebreak to two messages and fix punctuation.

Signed-off-by: Sven Roederer <devel-sven@geroedel.de>
2021-07-14 16:57:35 -04:00
Rasmus Villemoes
33b9027c4e fixdep: remove leftover handling of IS_BUILTIN/IS_MODULE
I removed CONFIG_IS_BUILTIN and CONFIG_IS_MODULE in commit
7d78a4547d ("linux/kconfig.h: remove unused helper macros"), but
fixdep.c still looks for those. It's harmless, but also pointless and
possibly confusing to a future reader.

Fixes: 7d78a4547d ("linux/kconfig.h: remove unused helper macros")
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2021-07-14 16:57:35 -04:00
Yann Dirson
331f0800f1 mkimage: allow -l to work on block devices on Linux
When "mkimage -l" was run on a block device it would fail with
erroneous message, because fstat reports a size of zero for those:

 mkimage: Bad size: "/dev/sdb4" is not valid image

This patch identifies the "is a block device" case and reports it as
such, and if it knows how to determine the size of a block device on
the current OS, proceeds.

As shown in
http://www.mit.edu/afs.new/sipb/user/tytso/e2fsprogs/lib/blkid/getsize.c
this is no portable task, and I only handled the case of a modern
Linux kernel, which is what I can test.

Signed-off-by: Yann Dirson <yann@blade-group.com>
2021-07-14 16:57:35 -04:00
Tom Rini
eae8c7c338 Merge branch '2021-07-14-platform-updates'
- Assorted platform updates
2021-07-14 16:48:23 -04:00
Stephan Gerhold
845d9cf61c usb: musb-new: Add glue driver for ST-Ericsson Ux500
The ST-Ericsson DB8500 SoC contains a MUSB OTG controller which
supports both host and gadget mode. For some reason there is
nothing special about it - add a simple glue driver for Ux500
that literally just sets up MUSB together with a generic PHY.
There are no SoC-specific registers etc needed to make USB work.

The new Ux500 glue driver is only tested to work with DM_USB
and DM_USB_GADGET. Both host and gadget mode work fine on
the u8500 "stemmy" board that is already present in U-Boot.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
2021-07-14 16:48:16 -04:00
Stephan Gerhold
4559df9e81 phy: Add driver for ST-Ericsson AB8500 USB PHY
The AB8500 PMIC contains an USB PHY that needs to be set up in
device or host mode to make USB work properly. Add a simple driver
for the generic PHY uclass that allows enabling it.

The if (CONFIG_IS_ENABLED(USB_MUSB_HOST)) might be a bit strange.
The USB PHY must be configured in either host or device mode and
somehow the USB PHY driver must be made aware of the mode.

Actually, the MUSB driver used together with this PHY does not
support dynamic selection of host/device mode in U-Boot at the moment.
Therefore, one very simple approach that works fine is to select
the mode to configure at compile time. When the MUSB driver is
configured in host mode the PHY is configured in host mode, and
similarly when the MUSB driver is configured in device/gadget mode.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2021-07-14 16:48:15 -04:00
Stephan Gerhold
3f6e4ec7c3 power: pmic: Add driver for ST-Ericsson AB8500 via PRCMU
All devices based on ST-Ericsson Ux500 use a PMIC similar to AB8500
(Analog Baseband). There is AB8500, AB8505, AB9540 and AB8540
although in practice only AB8500 and AB8505 are relevant since the
platforms with AB9540 and AB8540 were cancelled and never used in
production.

In general, the AB8500 PMIC uses I2C as control interface, where the
different register banks are represented as separate I2C devices.
However, in practice AB8500 is always connected to a special I2C bus
on the DB8500 SoC that is controlled by the power/reset/clock
management unit (PRCMU) firmware.

Add a simple driver that allows reading/writing registers of the
AB8500 PMIC. The driver directly accesses registers from the PRCMU
parent device (represented by syscon in U-Boot). Abstracting it
further (e.g. with the i2c uclass) would not provide any advantage
because the PRCMU I2C bus is always just connected to AB8500 and
vice-versa.

The ab8500.h header is mostly taken as-is from Linux (with some
minor adjustments) to allow using similar code in both Linux and
U-Boot.

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
2021-07-14 16:48:14 -04:00
Stephan Gerhold
e2f82f93f8 board: stemmy: Copy atags for booting downstream/vendor kernel
The U-Boot "stemmy" board is mainly intended to simplify booting
mainline Linux on various smartphones from Samsung based on ST-Ericsson
Ux500. While the mainline kernel is working great, there are still some
features missing there. In particular, it is currently not possible to
charge the battery when using the mainline kernel.

This means that it is still necessary to boot the downstream/vendor
kernel from Samsung sometimes to charge the device. That kernel is
ancient, still uses board files + ATAGS instead of device trees and
relies on a strange very long kernel command line hardcoded in the
Samsung bootloader.

Actually, since mainline is booted with device trees there is a very
simple way to make the old downstream kernel work as well: We can
simply take most of the ATAGS passed to U-Boot from the Samsung
bootloader and copy them as-is when booting a kernel without device
tree. That way the long command line and other needed ATAGS are copied
as-is without having to bother with them.

The only exception is the ATAG_INITRD - since the initrd is loaded
by U-Boot, the atag for that should be generated in U-Boot so it points
to the correct address. All other ATAGS are copied as-is and not
generated in U-Boot.

Also use the chance and provide a serial# for U-Boot by parsing the
ATAG_SERIAL that is also passed by the Samsung bootloader.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2021-07-14 16:48:12 -04:00
Stephan Gerhold
03585d52fc board: stemmy: Parse atags to get available memory
At the moment the "stemmy" board attempts to detect the RAM size with
a simple memory test (get_ram_size()). Unfortunately, this does not work
correctly for devices with 768 MiB RAM (e.g. Samsung Galaxy Ace 2
(GT-I8160), "codina"). Reading/writing memory after the 768 MiB RAM
succeeds but actually overwrites some earlier parts of the memory.

For U-Boot this does not result in any major problems, but on Linux
this will eventually lead to strange crashes because of the memory
corruption.

Since the "stemmy" U-Boot port is designed to be chainloaded from
the original Samsung bootloader, the most reliable way to get the
available amount of RAM is to look at the ATAGS passed by the Samsung
bootloader. Fortunately, the header used to generate ATAGS in U-Boot
(asm/setup.h) can also be easily used to parse them.

Also clarify and simplify stemmy.h a bit to make it more clear where
some of the magic values in there are actually coming from.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2021-07-14 16:48:11 -04:00
Kunihiko Hayashi
9e9074bcdd ARM: dts: uniphier: Add support for Akebi96
Add the device tree for Akebi96. Akebi96 is a 96boards certified
development board based on UniPhier LD20.
( https://www.96boards.org/product/akebi96/ )

Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
2021-07-14 16:48:10 -04:00
Kunihiko Hayashi
bc9255a5ad configs: uniphier: Enable CONFIG_SYS_PCI_64BIT
Enable CONFIG_SYS_PCI_64BIT to allow 64bit access to PCI space.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
2021-07-14 16:48:09 -04:00
Kunihiko Hayashi
e22c25607b pci: uniphier: Add UniPhier PCIe controller driver
Add PCIe driver for UniPhier SoCs. This PCIe controller is based on
Synopsys DesignWare Core IP.

This version doesn't apply common DW functions because supported
controller doesn't have unroll version of iATU.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
2021-07-14 16:48:08 -04:00
Kunihiko Hayashi
b0415d826f phy: socionext: Add UniPhier PCIe PHY driver
Add PCIe PHY driver support for Pro5, LD20 and PXs3 SoCs.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
2021-07-14 16:48:07 -04:00
Kunihiko Hayashi
34707b32ed reset: uniphier: Add PCIe reset entry
Add reset control for PCIe controller on each SoC.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
2021-07-14 16:48:06 -04:00
Kunihiko Hayashi
a1b4810adb clk: uniphier: Add PCIe clock entry
Add clock control for PCIe controller on each SoC.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
2021-07-14 16:48:05 -04:00
Ley Foon Tan
d3cffc8316 MAINTAINERS, git-mailrc: socfpga: Change co-maintainer to Tien Fong Chee
I'm no longer work in Intel, change Intel SoCFPGA co-maintainer to
Tien Fong Chee.

Signed-off-by: Ley Foon Tan <lftan.linux@gmail.com>
Acked-by: Marek Vasut <marex@denx.de>
2021-07-14 16:48:04 -04:00
Stephan Gerhold
548b89f8ad arm: mach-snapdragon: pinctrl: Place pin_name in .data section
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>
2021-07-14 16:48:01 -04:00
Marek Vasut
93e310c3a6 board-info: Call sysinfo_detect() before sysinfo_get_str()
The sysinfo_get_str() implementation checks whether the sysinfo was even
detected. In U-Boot proper, sysinfo_detect() is not called anywhere but
on one specific board. Call sysinfo_detect() before sysinfo_get_str() to
make sure the sysinfo is detected and sysinfo_get_str() returns valid
value instead of -EPERM.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-07-14 16:48:00 -04:00
Marek Vasut
10f3e157e8 board-info: Use sysinfo_get()
Replace uclass_first_device_err(UCLASS_SYSINFO, &dev) with sysinfo_get(&dev).
The board_info code may use sysinfo to print board information, so use the
sysinfo functions consistently. The sysinfo_get() is internally implemented
as return uclass_first_device_err(UCLASS_SYSINFO, &dev) anyway, so there is
no functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-07-14 16:47:59 -04:00
Marek Vasut
fc3292cbeb misc: i2c_eeprom: Add atmel,24c01 to the list
Linux kernel binding is using atmel,24c01 compatible string. On the
other hand there is atmel,24c01a which is not listed in the kernel.
Add compatible string without "a" suffix to be compatible with Linux
kernel binding.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
2021-07-14 16:47:58 -04:00
Stephan Gerhold
0e6956cc7d timer: nomadik-mtu: Use dev_read_addr_ptr()
Simplify the code a bit by using dev_read_addr_ptr() instead of
dev_read_addr(). This avoids having to cast explicitly to the
struct nomadik_mtu_regs.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2021-07-14 16:47:57 -04:00
Stephan Gerhold
1e0b4c07bf gpio: Add driver for Nomadik GPIO
Nomadik GPIO is a fairly simple GPIO module used in the ST-Ericsson
Ux500 SoCs (and some older Nomadik SoCs). It uses registers where
each GPIO is represented as a single bit, plus "set" and "clear"
registers that allow updating the state without having to read the
existing state.

The driver implements support for it for use together with DM_GPIO
and the existing ste-dbx5x0.dtsi device tree.

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2021-07-14 16:47:56 -04:00
Stephan Gerhold
05e5ba2127 gpio: Drop long unused DB8500 GPIO driver
The original U-Boot port for the ST-Ericsson U8500 SoC was dropped
in commit 68282f55b8 ("arm: Remove unused ST-Ericsson u8500 arch").
Most of the drivers related to the old port were removed, but the
db8500_gpio.c driver was forgotten for some reason. There is no way
to select it and it does not compile anymore because of missing
headers, so let's just remove it.

The new port for U8500 introduced in commit 689088f9da
("arm: Add support for ST-Ericsson U8500 SoC") fully embraces the
new Driver Model and device trees where possible, so this is
preparation to add a new, simplified GPIO driver based on DM_GPIO.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2021-07-14 16:47:55 -04:00
Anders Dellien
24e9bfb269 board: armltd: Remove bootargs from Total Compute configuration
This information will be maintained in the device tree instead.

Signed-off-by: Anders Dellien <anders.dellien@arm.com>
2021-07-14 16:47:50 -04:00
Tom Rini
a7bdd2dd8e Pull request for efi-2021-10-rc1
Documentation
 
 * fix typo in signature.txt
 
 UEFI
 
 * provide file attributes in EFI_FILE_PROTOCOL.Read()
 * various capsule update fixes
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Merge tag 'efi-2021-10-rc1' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request for efi-2021-10-rc1

Documentation

* fix typo in signature.txt

UEFI

* provide file attributes in EFI_FILE_PROTOCOL.Read()
* various capsule update fixes
2021-07-13 09:42:19 -04:00
Masami Hiramatsu
b0b1449b3b efi_loader: Fix to set bootdev_root correctly if bootdev found
Fix find_boot_device() to set bootdev_root if it finds the
bootdev from BootNext. Currently it sets the bootdev_root only
when it finds bootdev from BootOrder.

Fixes: c74cd8bd08 ("efi_loader: capsule: add capsule_on_disk support")
Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Accked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2021-07-12 20:38:16 +02:00
Heinrich Schuchardt
70bad5462c efi_loader: set CapsuleLast after each capsule
If multiple capsules are applied, the FMP drivers for the individual
capsules can expect the value of CapsuleLast to be accurate. Hence
CapsuleLast must be updated after each capsule.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2021-07-12 20:30:48 +02:00
Heinrich Schuchardt
d7eedd9d50 efi_loader: missing EFI_CALL() in set_capsule_result
efi_set_variable() should be called with EFI_CALL(). Use
efi_set_variable_int() instead.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2021-07-12 20:30:48 +02:00
Heinrich Schuchardt
3e49119efb efi_loader: rework messages for capsule updates
* Use log category LOGC_EFI. This allows to remove 'EFI:' prefixes in
  messages.
* Rephrase some of the messages.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2021-07-12 20:30:48 +02:00
Heinrich Schuchardt
79a61ccb23 efi_loader: provide file attributes in EFI_FILE_PROTOCOL.Read()
When reading a directory using EFI_FILE_PROTOCOL.Read() provide file
attributes and timestamps.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2021-07-12 20:30:48 +02:00
Heinrich Schuchardt
cbe3ab986b lib: remove superfluous #ifdefs from date.c
We should avoid #ifdef in C modules. Unused functions are eliminated by the
linker.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2021-07-12 20:30:48 +02:00
Heinrich Schuchardt
13c11c6653 fs: fat: add file attributes to struct fs_dirent
When reading a directory in the UEFI file system we have to return file
attributes and timestamps. Copy this data to the directory entry structure.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2021-07-12 20:30:48 +02:00
Thomas Perrot
41a4a30855 doc: fix typo in signature.txt
Fix value fields in signature nodes.

Signed-off-by: Thomas Perrot <thomas.perrot@bootlin.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2021-07-12 20:30:48 +02:00
Tom Rini
490101a5e5 Merge branch 'master' of https://source.denx.de/u-boot/custodians/u-boot-sunxi
Aside from the usual fixes and updates one visible change is the
MMC update, which fixes some lingering bugs and gives a decent speed
increase on some boards (9->19 MB/s on H6, 21->43 MB/s on A64 eMMC).
I am keeping an watchful eye on bug reports here, to spot any correctness
regressions.
Another change is finally the enablement of the first USB host port on
many boards without micro-USB (data) sockets, like the Pine64 family.
That doubles the number of usable USB ports from 1 to 2 on those boards.

Some smaller fixes, 4GB DRAM support (on the H616) and a new board (ZeroPi)
conclude this first round of changes.

Compile-tested for all 157 sunxi boards, boot-tested on Pine H64,
Pine64-LTS, OrangePi Zero 2 and BananaPi M2 Berry.

Summary:
- DT update for H3/H5/H6
- Enable first USB port on boards without micro-USB
- ZeroPi board support
- 4GB DRAM support for H616 boards
- MMC fixes and speed improvement
- some fixes
2021-07-09 21:08:52 -04:00
Andre Przywara
ac62dadb37 mmc: sunxi: Use mmc_of_parse()
At the moment the Allwinner MMC driver parses the bus-width and
non-removable DT properties itself, in the probe() routine.

There is actually a generic function provided by the MMC framework doing
this job, also it parses more generic properties like broken-cd and
advanced transfer modes.

Drop our own code and call mmc_of_parse() instead, to get all new
features for free.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2021-07-10 01:22:09 +01:00
Andre Przywara
9faae5457f mmc: sunxi: Increase MMIO FIFO read performance
To avoid the complexity of DMA operations (with chained descriptors), we
use repeated MMIO reads and writes to the SD_FIFO_REG, which allows us
to drain or fill the MMC data buffer FIFO very easily.

However those MMIO accesses are somewhat costly, so this limits our MMC
performance, to between 17 and 22 MB/s, but down to 9.5 MB/s on the H6
(partly due to the lower AHB1 frequency).

As it turns out we read the FIFO status register after *every* word we
read or write, which effectively doubles the number of MMIO accesses,
thus effectively more than halving our performance.

To avoid this overhead, we can make use of the FIFO level bits, which are
in the very same FIFO status registers.
So for a read request, we now can collect as many words as the FIFO
level originally indicated, and only then need to update the status
register.

We don't know for sure the size of the FIFO (and it seems to differ
across SoCs anyway), so writing is more fragile, which is why we still
use the old method for that. If we find a minimum FIFO size available on
all SoCs, we could use that, in a later optimisation.

This patch increases the eMMC read speed on a Pine64-LTS from about
22MB/s to 44 MB/s. SD card reads don't gain that much, but with 23 MB/s
we now reach the practical limit for 3.3V SD cards.
On the H6 we double our transfer speed, from 9.5 MB/s to 19.7 MB/s.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-07-10 01:22:09 +01:00
Andre Przywara
b5dd39c96e mmc: sunxi: Cleanup and fix self-calibration code
Newer SoCs have a self calibration feature, which avoids us writing hard
coded phase delay values into the controller.

Consolidate the code by avoiding unnecessary #ifdefs, and also enabling
the feature for all those newer SoCs.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-07-10 01:22:09 +01:00
Andre Przywara
b6e3bf1e0d mmc: sunxi: Enable "new timing mode" on all new SoCs
All SoCs since the Allwinner A64 (H5, H6, R40, H616) feature the so
called "new timing mode", so enable this in Kconfig for those SoCs.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-07-10 01:22:09 +01:00
Andre Przywara
f85c0912b6 mmc: sunxi: Cleanup "new timing mode" selection
Among the SoCs using the "new timing mode", only the A83T needs to
explicitly switch to that mode.

By just defining the symbol for that one odd A83T bit to 0 for any other
SoCs, we can always OR that in, and save the confusing nested #ifdefs.

Clean up the also confusing new_mode setting on the way.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2021-07-10 01:22:09 +01:00
Andre Przywara
937ee31e32 mmc: sunxi: Fix MMC clock parent selection
Most Allwinner SoCs which use the so called "new timing mode" in their
MMC controllers actually use the double-rate PLL6/PERIPH0 clock as their
parent input clock. This is interestingly enough compensated by a hidden
"by 2" post-divider in the mod clock, so the divider and actual output
rate stay the same.

Even though for the H6 and H616 (but only for them!) we use the doubled
input clock for the divider computation, we never accounted for the
implicit post-divider, so the clock was only half the speed on those SoCs.
This didn't really matter so far, as our slow MMIO routine limits the
transfer speed anyway, but we will fix this soon.

Clean up the code around that selection, to always use the normal PLL6
(PERIPH0(1x)) clock as an input. As the rate and divider are the same,
that makes no difference.
Explain the hardware differences in a comment.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-07-10 01:22:09 +01:00
Andre Przywara
ca496baf9b mmc: sunxi: Fix warnings with CONFIG_PHYS_64BIT
When enabling PHYS_64BIT on 32-bit platforms, we get two warnings about
pointer casts in sunxi_mmc.c. Those are related to MMIO addresses, which
are always below 1GB on all Allwinner SoCs, so there is no problem with
anything having more than 32 bits.

Add the proper casts to make it compile cleanly.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2021-07-10 01:22:09 +01:00
Andre Przywara
f4826fb137 mmc: sunxi: Avoid #ifdefs in delay and width setup
The delay and bus-width setup are slightly different across the
Allwinner SoC generations, and we covered this so far with some
preprocessor conditionals.

Use the more readable IS_ENABLE() instead.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2021-07-10 01:22:09 +01:00
Andre Przywara
b8747854de sunxi: H616: Enable full 4GB of DRAM
The H616 is our first supported Allwinner SoC which goes beyond the 4GB
address space "barrier", by having more than 32 address bits.

Lift the preliminary 3GB DRAM limit for the H616, and update the page
table setup on the way, to actually map that last GB as well.

As not all devices are actually capable of dealing with more than 32
bits (the DMA in the EMAC for instance), we also limit U-Boot's own
DRAM usage to 4GB on the way.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-07-10 01:22:09 +01:00
Andre Przywara
212224ed68 sunxi: board: Add H616 MMC2 pins
We hardcode the pinctrl setting for the MMC controllers in boards.c,
since we need them also in the SPL, where there is no DT yet.

Add the respective setting for the H616 SoC, to enable eMMC on boards
with this SoC as well.
Also to make diagnosing this problem easier, print a warning if a board
tries to setup MMC2 pins without a respective SoC setting being defined.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jagan Teki <jagan at amarulasolutions.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec at siol.net>
2021-07-10 01:22:09 +01:00
Yu-Tung Chang
2527b24f39 sunxi: h3: Add initial ZeroPi support
ZeroPi is a new board of high performance with low cost
designed by FriendlyElec., using the Allwinner H3 SOC.

ZeroPi features
- Allwinner H3, Quad-core Cortex-A7@1.2GHz
- 256MB/512MB DDR3 RAM
- microsd slot
- 10/100/1000Mbps Ethernet
- Debug Serial Port
- DC 5V/2A power-supply

Signed-off-by: Yu-Tung Chang <mtwget@gmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-07-10 01:22:09 +01:00
Jernej Skrabec
8e6eed5748 configs: OrangePi PC2: Update defaults
OrangePi PC2 board has DRAM with ODT, so enable it.
H5 SoC is also connected to voltage regulator. It's default value is
reasonable at reset, but might be too low when rebooting with a lower
voltage programmed. In order to avoid instability, enable driver for it
and set it to appropriate voltage.

Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
[Andre: remove original ZQ value change, adjust commit message]
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-07-10 01:22:09 +01:00
Andre Przywara
f9d1324775 sunxi: clock: H6/H616: Fix PLL clock factor encodings
Most clock factors and dividers in the H6 PLLs use a "+1 encoding",
which we were missing on two occasions.

This fixes the MMC clock setup on the H6, which could be slightly off due
to the wrong parent frequency:
mmc 2 set mod-clk req 52000000 parent 1176000000 n 2 m 12 rate 49000000

Also the CPU frequency (PLL1) was a tad too high before.

For PLL5 (DRAM) we already accounted for this +1, but in the DRAM code
itself, not in the bit field macro. Move this there to be aligned with
what the other SoCs and other PLLs do.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
2021-07-10 01:22:09 +01:00