oweals/u-boot.git
8 years agolib: Add wait_for_bit
Mateusz Kulikowski [Sat, 23 Jan 2016 10:54:29 +0000 (11:54 +0100)]
lib: Add wait_for_bit

Add function to poll register waiting for specific bit(s).
Similar functions are implemented in few drivers - they are almost
identical and can be generalized.
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agocommon/console.c: Remove unused inline functions
Tom Rini [Thu, 21 Jan 2016 14:10:26 +0000 (09:10 -0500)]
common/console.c: Remove unused inline functions

clang-3.8 reports that these functions are unused, remove them.  As this
is the last part of CONFIG_MODEM_SUPPORT_DEBUG, drop that from README.

Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
8 years agopart: Drop duplication declaration of block_dev_desc_t
Simon Glass [Thu, 21 Jan 2016 03:12:07 +0000 (20:12 -0700)]
part: Drop duplication declaration of block_dev_desc_t

This is already defined in ide.h, which part.h includes. So we don't need
the duplicate typedef. At least with my old blackfin gcc 4.3.5 tool chain,
this causes an error.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
8 years agoenv_mmc: support overriding mmc dev from board code
Clemens Gruber [Wed, 20 Jan 2016 14:43:37 +0000 (15:43 +0100)]
env_mmc: support overriding mmc dev from board code

This enables boards to choose where to/from the environment should be
saved/loaded. They can then for example support using the same device
(dynamically) from which the bootloader was launched to load and save
env data and do not have to define CONFIG_SYS_MMC_ENV_DEV statically.

In my use case, the environment needs to be on the same device I
booted from. It can be the eMMC or an optional SD card.
I therefore would override mmc_get_env_dev in the board code, read the
CPU registers to determine where we booted from and return the
corresponding device index.

Cc: Tom Rini <trini@konsulko.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoserial: Remove serial_putc_raw_dev
Tom Rini [Wed, 20 Jan 2016 12:23:05 +0000 (07:23 -0500)]
serial: Remove serial_putc_raw_dev

clang-3.8 reports that serial_putc_raw_dev in serial_ns16550.c is
unused.  Further investigation shows that we have 3 places that
implement this function and no callers, remove.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agobootm: fix size arg of flush_cache() in bootm_load_os().
Purna Chandra Mandal [Wed, 20 Jan 2016 08:37:39 +0000 (14:07 +0530)]
bootm: fix size arg of flush_cache() in bootm_load_os().

Variable _load_end_ points to end address of uncompressed buffer
(*not* uncomress_buffer_end / sizeof(ulong)), so multipling uncompressed
size with sizeof(ulong) is grossly incorrect in flush_cache().
It might lead to access of address beyond valid memory range and hang the CPU.

Tested on MIPS architecture by using compressed(gzip, lzma)
and uncompressed uImage.

Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
8 years agoarm, powerpc: Update cc-version tests to check for cc-name as well
Tom Rini [Wed, 20 Jan 2016 01:39:02 +0000 (20:39 -0500)]
arm, powerpc: Update cc-version tests to check for cc-name as well

For compatibility clang will report some gcc version.  However since we
are checking gcc versions in order to then fail to build, we should
limit these tests only to when we are using gcc and not clang.

Signed-off-by: Tom Rini <trini@konsulko.com>
8 years agokbuild: Add clang detection
Tom Rini [Wed, 20 Jan 2016 01:39:01 +0000 (20:39 -0500)]
kbuild: Add clang detection

Adapted from:

>From 5631d9c429857194bd55d7bcd8fa5bdd1a9899a3 Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.com>
Date: Wed, 19 Aug 2015 17:36:41 +0200
Subject: [PATCH 1/1] kbuild: Fix clang detection

We cannot detect clang before including the arch Makefile, because that
can set the default cross compiler. We also cannot detect clang after
including the arch Makefile, because powerpc wants to know about clang.
Solve this by using an deferred variable. This costs us a few shell
invocations, but this is only a constant number.

Reported-by: Behan Webster <behanw@converseincode.com>
Reported-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michal Marek <mmarek@suse.com>
in the Linux kernel.

This will allow us to make better decisions about when to run tests
later on for gcc features.

Signed-off-by: Tom Rini <trini@konsulko.com>
8 years agoRemove the cmd_ prefix from command files
Simon Glass [Mon, 18 Jan 2016 03:53:52 +0000 (20:53 -0700)]
Remove the cmd_ prefix from command files

Now that they are in their own directory, we can remove this prefix.
This makes it easier to find a file since the prefix does not get in the
way.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
8 years agoMove all command code into its own directory
Simon Glass [Mon, 18 Jan 2016 03:53:51 +0000 (20:53 -0700)]
Move all command code into its own directory

There are a lot of unrelated files in common, including all of the commands.
Moving them into their own directory makes them easier to find and is more
logical.

Some commands include non-command code, such as cmd_scsi.c. This should be
sorted out at some point so that the function can be enabled with or without
the associated command.

Unfortunately, with m68k I get this error:

m68k:  +   M5329AFEE
+arch/m68k/cpu/mcf532x/start.o: In function `_start':
+arch/m68k/cpu/mcf532x/start.S:159:(.text+0x452): relocation truncated to fit: R_68K_PC16 against symbol `board_init_f' defined in .text.board_init_f section in common/built-in.o

I hope someone can shed some light on what this means. I hope it isn't
depending on the position of code in the image.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>
8 years agoimx: spl: enable CONFIG_SPL_WATCHDOG_SUPPORT
Peng Fan [Mon, 4 Jan 2016 12:27:27 +0000 (20:27 +0800)]
imx: spl: enable CONFIG_SPL_WATCHDOG_SUPPORT

This commit 4bdcbe60a142b08eefccb0e326a37ba81d3389e8 removes reset_cpu
which breaks SPL build when DEBUG macro defined.

"
arch/arm/lib/built-in.o: In function `do_reset':
~/uboot/arch/arm/lib/reset.c:45: undefined reference to `reset_cpu'
scripts/Makefile.spl:244: recipe for target 'spl/u-boot-spl' failed
"
Enable CONFIG_SPL_WATCHDOG_SUPPORT to fix this issue.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Tim Harvey <tharvey@gateworks.com>
Acked-by: Eric Nelson <eric@nelint.com>
8 years agoimx: mx7: default enable MDIO open drain
Peng Fan [Mon, 4 Jan 2016 05:16:41 +0000 (13:16 +0800)]
imx: mx7: default enable MDIO open drain

The management data input/output (MDIO) requires open-drain,
i.MX7D TO1.0 ENET MDIO pin has no open drain, but TO1.1 supports
this feature. So to TO1.1, need to enable open drain by setting
bits GPR0[8:7] for TO1.1.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
8 years agoimx: mx6ul/sx: fix mmdc_ch0 clk calculation
Peng Fan [Wed, 6 Jan 2016 03:06:31 +0000 (11:06 +0800)]
imx: mx6ul/sx: fix mmdc_ch0 clk calculation

Check "Figure 19-5. BUS clock generation" of i.MX 6SoloX Applications
Processor Reference Manual and "Figure 18-5. BUS clock generation" of
i.MX 6UltraLite Applications Processor Reference Manual. If mmdc clk
sources from pll4_main_clk(pll_audio), the calculation is wrong.

Fix mmdc_ch0 clk calculation. Also add PLL_AUDIO/VIDEO support
for decode_pll.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
8 years agoimx: mx6: add more entry for mxc_ccm_reg
Peng Fan [Wed, 6 Jan 2016 03:06:30 +0000 (11:06 +0800)]
imx: mx6: add more entry for mxc_ccm_reg

Add more entries for structure mxc_ccm_reg.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Eric Nelson <eric@nelint.com>
Cc: Stefano Babic <sbabic@denx.de>
8 years agoimx: mx7dsabresd: support nand
Peng Fan [Tue, 22 Dec 2015 09:04:24 +0000 (17:04 +0800)]
imx: mx7dsabresd: support nand

Add pinmux settings.
Add related macro definitions.
Nand pin conflicts with emmc, so if want to enable nand, need to do
hardware rework. After hardware rework, define CONFIG_NAND_MXS in
board header file.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
8 years agoimx: nand: update GPMI NAND driver to support MX7
Peng Fan [Tue, 22 Dec 2015 09:04:23 +0000 (17:04 +0800)]
imx: nand: update GPMI NAND driver to support MX7

Update GPMI NAND driver and BCH head file to support i.MX7

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
8 years agoimx: apbh_dma: Update APBH-DMA for MX7D
Peng Fan [Tue, 22 Dec 2015 09:04:22 +0000 (17:04 +0800)]
imx: apbh_dma: Update APBH-DMA for MX7D

Update APBH-DMA driver and head files to support i.MX7D

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
8 years agoimx: mx6ulevk: add CONFIG_SPI_FLASH_STMICRO
Peng Fan [Tue, 19 Jan 2016 07:13:52 +0000 (15:13 +0800)]
imx: mx6ulevk: add CONFIG_SPI_FLASH_STMICRO

Add CONFIG_SPI_FLASH_STMICRO to let qspi driver can detect the
qspi chips.
"
=> sf probe
SF: Detected N25Q256 with page size 256 Bytes, erase size 64 KiB, total 32 MiB
"

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Jagan Teki <jteki@openedev.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Stefano Babic <sbabic@denx.de>
8 years agomx25pdk: Remove lowlevel_init.S file
Fabio Estevam [Mon, 11 Jan 2016 20:09:15 +0000 (18:09 -0200)]
mx25pdk: Remove lowlevel_init.S file

As the lowlevel_init function is empty we should better
remove this assembly file entirely and use a dummy C
function instead.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
8 years agoimx: mx6/7 enlarge CONFIG_SYS_BOOTM_LEN to 16M
Peng Fan [Mon, 4 Jan 2016 07:27:22 +0000 (15:27 +0800)]
imx: mx6/7 enlarge CONFIG_SYS_BOOTM_LEN to 16M

Support uncompressing zImage which is larger than 8M.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Peter Robinson <pbrobinson@gmail.com>
Cc: Volodymyr Riazantsev <volodymyr.riazantsev@globallogic.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Adrian Alonso <aalonso@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
8 years agoimx: mx6ulevk: change mtest memory size to 128M
Peng Fan [Tue, 5 Jan 2016 06:03:36 +0000 (14:03 +0800)]
imx: mx6ulevk: change mtest memory size to 128M

To i.MX6UL 14x14 EVK, system memory is 512M; to i.MX6UL 9x9 EVK,
system memory is 256M. If setting mtest size to 256M, mtest will
crash uboot for i.MX6UL 9x9 evk. So change mtest size to 128M.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
8 years agox86: ivybridge: Use syscon for the GMA device
Simon Glass [Sun, 17 Jan 2016 23:11:59 +0000 (16:11 -0700)]
x86: ivybridge: Use syscon for the GMA device

Until we have a proper video uclass we can use syscon to handle the GMA
device, and avoid the special device tree and PCI searching. Update the code
to work this way.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: Set up a shared syscon numbering schema
Simon Glass [Sun, 17 Jan 2016 23:11:58 +0000 (16:11 -0700)]
x86: Set up a shared syscon numbering schema

Each system controller can have a number to identify it. It can then be
accessed using syscon_get_by_driver_data(). Put this in a shared header
file and update the only current user.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Drop the SMM-locking code
Simon Glass [Sun, 17 Jan 2016 23:11:57 +0000 (16:11 -0700)]
x86: ivybridge: Drop the SMM-locking code

U-Boot does not support SMM yet, so we can drop this code. It is easy to
bring back when needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Drop XHCI support
Simon Glass [Sun, 17 Jan 2016 23:11:56 +0000 (16:11 -0700)]
x86: ivybridge: Drop XHCI support

This is not used on link which is the only ivybridge board. Drop this code.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Drop special EHCI init
Simon Glass [Sun, 17 Jan 2016 23:11:55 +0000 (16:11 -0700)]
x86: ivybridge: Drop special EHCI init

This is not needed. On reset wake-on-disconnect is already set. It may a
problem during a soft reset or resume, but for now it does not seem
important. Also drop the command register update since PCI auto-config
does it for us.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Sort out the calls to bridge_silicon_revision()
Simon Glass [Sun, 17 Jan 2016 23:11:54 +0000 (16:11 -0700)]
x86: ivybridge: Sort out the calls to bridge_silicon_revision()

This function is called all over the place. Convert it use the driver model
PCI API, and rationalise the calls.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Move code from pch.c to bd82x6x.c
Simon Glass [Sun, 17 Jan 2016 23:11:53 +0000 (16:11 -0700)]
x86: ivybridge: Move code from pch.c to bd82x6x.c

This code relates to the PCH, so we should move it into the same file.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Convert pch.c to use DM PCI API
Simon Glass [Sun, 17 Jan 2016 23:11:52 +0000 (16:11 -0700)]
x86: ivybridge: Convert pch.c to use DM PCI API

Convert this file to use the driver model PCI API.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Convert report_platform to DM PCI API
Simon Glass [Sun, 17 Jan 2016 23:11:51 +0000 (16:11 -0700)]
x86: ivybridge: Convert report_platform to DM PCI API

Convert these functions to use the driver model PCI API.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Convert SDRAM init to use driver model
Simon Glass [Sun, 17 Jan 2016 23:11:50 +0000 (16:11 -0700)]
x86: ivybridge: Convert SDRAM init to use driver model

SDRAM init needs access to the Northbridge controller and the Intel
Management Engine device. Add the latter to the device tree and convert all
of this code to driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: chromebook_link: Enable the syscon uclass
Simon Glass [Sun, 17 Jan 2016 23:11:49 +0000 (16:11 -0700)]
x86: chromebook_link: Enable the syscon uclass

We will use a system controller to model the Intel Management Engine. Enable
this for link.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Convert sdram_initialise() to use DM PCI API
Simon Glass [Sun, 17 Jan 2016 23:11:48 +0000 (16:11 -0700)]
x86: ivybridge: Convert sdram_initialise() to use DM PCI API

Convert this function to use the the driver model PCI API. We just need
to pass in the northbridge device.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Convert dram_init() to use DM PCI API
Simon Glass [Sun, 17 Jan 2016 23:11:47 +0000 (16:11 -0700)]
x86: ivybridge: Convert dram_init() to use DM PCI API

Convert the top part of the DRAM init to use the driver model PCI API.
Further work will complete the transformation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Convert enable_usb_bar() to use DM PCI API
Simon Glass [Sun, 17 Jan 2016 23:11:46 +0000 (16:11 -0700)]
x86: ivybridge: Convert enable_usb_bar() to use DM PCI API

Convert this function over to use the driver model PCI API. In this case
we want to avoid using the real PCI devices since they have not yet been
probed. Instead, write directly to their PCI configuration address.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Use the I2C driver to perform SMbus init
Simon Glass [Sun, 17 Jan 2016 23:11:45 +0000 (16:11 -0700)]
x86: ivybridge: Use the I2C driver to perform SMbus init

Move the init code into the I2C driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: i2c: Add a stub driver for Intel I2C/SMbus
Simon Glass [Sun, 17 Jan 2016 23:11:44 +0000 (16:11 -0700)]
x86: i2c: Add a stub driver for Intel I2C/SMbus

This is used on most Intel platforms. We don't have a driver for it yet, but
add a stub to handle the init. For now this targets ivybridge so we may want
to add a device tree binding and generalise it when other platforms are
supported.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: Enable DM_USB for link and panther
Simon Glass [Sun, 17 Jan 2016 23:11:43 +0000 (16:11 -0700)]
x86: Enable DM_USB for link and panther

Move these two boards to use driver model for USB.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Convert lpc init code to DM PCI API
Simon Glass [Sun, 17 Jan 2016 23:11:42 +0000 (16:11 -0700)]
x86: ivybridge: Convert lpc init code to DM PCI API

Adjust this code to use the driver model PCI API. This is all called through
lpc_init_extra().

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Drop the special PCI driver
Simon Glass [Sun, 17 Jan 2016 23:11:41 +0000 (16:11 -0700)]
x86: ivybridge: Drop the special PCI driver

There is nothing special about the ivybridge pci driver now, so just use
the generic one.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Move LPC init into the LPC probe() method
Simon Glass [Sun, 17 Jan 2016 23:11:40 +0000 (16:11 -0700)]
x86: ivybridge: Move LPC init into the LPC probe() method

Drop the lpc_init_extra() function and just use the post-relocation LPC
probe() instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Move lpc_enable() into gma.c
Simon Glass [Sun, 17 Jan 2016 23:11:39 +0000 (16:11 -0700)]
x86: ivybridge: Move lpc_enable() into gma.c

This graphics init code is best placed in the gma init code. Move the code
and drop the function.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Use driver model PCI API in sata.c
Simon Glass [Sun, 17 Jan 2016 23:11:38 +0000 (16:11 -0700)]
x86: ivybridge: Use driver model PCI API in sata.c

Adjust the functions in this file to use the driver model PCI API.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Use the SATA driver to do the init
Simon Glass [Sun, 17 Jan 2016 23:11:37 +0000 (16:11 -0700)]
x86: ivybridge: Use the SATA driver to do the init

Instead of manually initing the device, probe the SATA device and move the
init there.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Drop the unused bd82x6x_init_extra()
Simon Glass [Sun, 17 Jan 2016 23:11:36 +0000 (16:11 -0700)]
x86: ivybridge: Drop the unused bd82x6x_init_extra()

This function does nothing now so can be dropped.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Do the SATA init before relocation
Simon Glass [Sun, 17 Jan 2016 23:11:35 +0000 (16:11 -0700)]
x86: ivybridge: Do the SATA init before relocation

The SATA device needs to set itself up so that it appears correctly on the
PCI bus. The easiest way to do this is to set it up to probe before
relocation. This can do the early setup.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agoahci: Add a disk-controller uclass
Simon Glass [Sun, 17 Jan 2016 23:11:34 +0000 (16:11 -0700)]
ahci: Add a disk-controller uclass

Add a uclass ID for a disk controller. This can be used by AHCI/SATA or
other controller types. There are no operations and no interface so far,
but it is possible to probe a SATA device.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Drop unnecessary northbridge setup
Simon Glass [Sun, 17 Jan 2016 23:11:33 +0000 (16:11 -0700)]
x86: ivybridge: Drop unnecessary northbridge setup

This is done by default with PCI auto-config. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Use driver model PCI API in bd82x6x.c
Simon Glass [Sun, 17 Jan 2016 23:11:32 +0000 (16:11 -0700)]
x86: ivybridge: Use driver model PCI API in bd82x6x.c

Adjust most of the remaining functions in this file to use the driver model
PCI API. The one remaining function is bridge_silicon_revision() which will
need a little more work.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Move northbridge and PCH init into drivers
Simon Glass [Sun, 17 Jan 2016 23:11:31 +0000 (16:11 -0700)]
x86: ivybridge: Move northbridge and PCH init into drivers

Instead of calling the northbridge and PCH init from bd82x6x_init_extra()
when the PCI bus is probed, call it from the respective drivers. Also drop
the Northbridge init as it has no effect. The registers it touches appear to
be read-only.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: Bring up northbridge, pch and lpc after the CPUs
Simon Glass [Sun, 17 Jan 2016 23:11:30 +0000 (16:11 -0700)]
x86: Bring up northbridge, pch and lpc after the CPUs

These devices currently need to be inited early in boot. Once we have the
init in the right places (with each device doing its own init and no
problems with ordering) we should be able to remove this. For now it is
needed to keep things working.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: Don't show an error when the MRC cache is up to date
Simon Glass [Sun, 17 Jan 2016 23:11:29 +0000 (16:11 -0700)]
x86: Don't show an error when the MRC cache is up to date

When the final MRC cache record is the same as the one we want to write, we
skip writing since there is no point. This is normal behaviour.

Avoiding printing an error when this happens.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: Make x86_init_cpus() static
Simon Glass [Sun, 17 Jan 2016 23:11:28 +0000 (16:11 -0700)]
x86: Make x86_init_cpus() static

There are no other implementations of this function, and boards that need it
can implement a CPU driver.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Move early init code into northbridge.c
Simon Glass [Sun, 17 Jan 2016 23:11:27 +0000 (16:11 -0700)]
x86: ivybridge: Move early init code into northbridge.c

This code is now part of the northbridge driver, so move it into the same
place.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Drop the dead MTRR code
Simon Glass [Sun, 17 Jan 2016 23:11:26 +0000 (16:11 -0700)]
x86: ivybridge: Drop the dead MTRR code

This is not used and MTRRs are set up elsewhere now. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Set up the thermal target correctly
Simon Glass [Sun, 17 Jan 2016 23:11:25 +0000 (16:11 -0700)]
x86: ivybridge: Set up the thermal target correctly

This uses a non-existent node at present. It should use the first CPU node.
The referenced property does not exist (the correct value is the default of
0), but this allows the follow-on init to complete.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Move CPU init code into the driver
Simon Glass [Sun, 17 Jan 2016 23:11:24 +0000 (16:11 -0700)]
x86: ivybridge: Move CPU init code into the driver

Use the CPU driver's probe() method to perform the CPU init. This will happen
automatically when the first CPU is probed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Use common CPU init code
Simon Glass [Sun, 17 Jan 2016 23:11:23 +0000 (16:11 -0700)]
x86: ivybridge: Use common CPU init code

The existing ivybridge code predates the normal multi-core CPU init, and
it is not used. Remove it and add CPU nodes to the device tree so that all
four CPUs are set up. Also enable the 'cpu' command.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Move GPIO init to the LPC init() method
Simon Glass [Sun, 17 Jan 2016 23:11:22 +0000 (16:11 -0700)]
x86: ivybridge: Move GPIO init to the LPC init() method

This init can happen in the driver also. Move it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Move sandybridge init to the lpc probe() method
Simon Glass [Sun, 17 Jan 2016 23:11:21 +0000 (16:11 -0700)]
x86: ivybridge: Move sandybridge init to the lpc probe() method

The watchdog can be reset later when probing the LPC after relocation.
Move it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Move graphics init much later
Simon Glass [Sun, 17 Jan 2016 23:11:20 +0000 (16:11 -0700)]
x86: ivybridge: Move graphics init much later

We don't need to init the graphics controller so early. Move it alongside
the other graphics setup, just before we run the ROM.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Probe the LPC in CPU init
Simon Glass [Sun, 17 Jan 2016 23:11:19 +0000 (16:11 -0700)]
x86: ivybridge: Probe the LPC in CPU init

We can drop the explicit probe of the PCH since the LPC is a child device
and this will happen automatically.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Rename lpc_init() to lpc_init_extra()
Simon Glass [Sun, 17 Jan 2016 23:11:18 +0000 (16:11 -0700)]
x86: ivybridge: Rename lpc_init() to lpc_init_extra()

In preparation for adding an init() method to the LPC uclass, rename this
existing function so that it will not conflict.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Move LPC and PCH init into northbridge probe()
Simon Glass [Sun, 17 Jan 2016 23:11:17 +0000 (16:11 -0700)]
x86: ivybridge: Move LPC and PCH init into northbridge probe()

Move more code into the northbridge probe() function.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Move northbridge init into the probe() method
Simon Glass [Sun, 17 Jan 2016 23:11:16 +0000 (16:11 -0700)]
x86: ivybridge: Move northbridge init into the probe() method

Now that we have a proper driver for the nortbridge, set it up in by probing
it, and move the early init code into the probe() method.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Add a driver for the bd82x6x northbridge
Simon Glass [Sun, 17 Jan 2016 23:11:15 +0000 (16:11 -0700)]
x86: ivybridge: Add a driver for the bd82x6x northbridge

Add a driver with an empty probe function where we can move init code in
follow-on patches.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: Add a northbridge uclass
Simon Glass [Sun, 17 Jan 2016 23:11:14 +0000 (16:11 -0700)]
dm: x86: Add a northbridge uclass

Add a uclass for the northbridge / SDRAM controller found on some older
Intel chipsets.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Rename bd82x6x_init()
Simon Glass [Sun, 17 Jan 2016 23:11:13 +0000 (16:11 -0700)]
x86: ivybridge: Rename bd82x6x_init()

Rename the existing bd82x6x_init() to bd82x6x_init_extra(). We will remove
this in a later patch.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Move more init to the probe() function
Simon Glass [Sun, 17 Jan 2016 23:11:12 +0000 (16:11 -0700)]
x86: ivybridge: Move more init to the probe() function

Move SPI and port80 init to lpc_early_init(), called from the LPC's probe()
method.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Move lpc_early_init() to probe()
Simon Glass [Sun, 17 Jan 2016 23:11:11 +0000 (16:11 -0700)]
x86: ivybridge: Move lpc_early_init() to probe()

Move this code to the LPC's probe() method so that it will happen
automatically when the LPC is probed before relocation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: ivybridge: Set up the LPC device using driver model
Simon Glass [Sun, 17 Jan 2016 23:11:10 +0000 (16:11 -0700)]
x86: ivybridge: Set up the LPC device using driver model

Find the LPC device in arch_cpu_init_dm() as a first step to converting
this code to use driver model. Probing the LPC will probe its parent (the
PCH) automatically, so make sure that probing the PCH does nothing before
relocation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: pci: Convert bios_emu to use the driver model PCI API
Simon Glass [Sun, 17 Jan 2016 23:11:09 +0000 (16:11 -0700)]
dm: pci: Convert bios_emu to use the driver model PCI API

At present this BIOS emulator uses a bus/device/function number. Change
it to use a device if CONFIG_DM_PCI is enabled.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: syscon: Allow finding devices by driver data
Simon Glass [Sun, 17 Jan 2016 23:11:08 +0000 (16:11 -0700)]
dm: syscon: Allow finding devices by driver data

We have a way to find a regmap by its syscon driver data value. Add the same
for syscon itself.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: usb: Add a compatible string for PCI EHCI controller
Simon Glass [Sun, 17 Jan 2016 23:11:07 +0000 (16:11 -0700)]
dm: usb: Add a compatible string for PCI EHCI controller

Add a compatible string to allow this to be specified in the device tree
if needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Marek Vasut <marex@denx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: core: Display the error number when driver binding fails
Simon Glass [Sun, 17 Jan 2016 23:11:06 +0000 (16:11 -0700)]
dm: core: Display the error number when driver binding fails

This is often -96 (-EPFNOSUPPORT) which indicates that the uclass is not
compiled in. Display the error number to make this easier to spot.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: Drop the weak cpu_irq_init() function
Simon Glass [Wed, 20 Jan 2016 04:32:32 +0000 (21:32 -0700)]
dm: x86: Drop the weak cpu_irq_init() function

There are no callers now. Platforms which need to set up interrupts their
own way can implement an interrupt driver. Drop this function.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: queensbay: Add an interrupt driver
Simon Glass [Wed, 20 Jan 2016 04:32:31 +0000 (21:32 -0700)]
dm: x86: queensbay: Add an interrupt driver

Add a driver for interrupts on queensbay and move the code currently in
cpu_irq_init() into its probe() method.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: quark: Add an interrupt driver
Simon Glass [Wed, 20 Jan 2016 04:32:30 +0000 (21:32 -0700)]
dm: x86: quark: Add an interrupt driver

Add a driver for interrupts on quark and move the code currently in
cpu_irq_init() into its probe() method.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: Drop the irq router compatible string
Simon Glass [Wed, 20 Jan 2016 04:32:29 +0000 (21:32 -0700)]
x86: Drop the irq router compatible string

We use driver model for this now, so we don't need this string.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agox86: Use the IRQ device when setting up the mptable
Simon Glass [Wed, 20 Jan 2016 04:32:28 +0000 (21:32 -0700)]
x86: Use the IRQ device when setting up the mptable

Instead of searching for the device tree node, use the IRQ device which has
a record of it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: Add a common PIRQ init function
Simon Glass [Wed, 20 Jan 2016 04:32:27 +0000 (21:32 -0700)]
dm: x86: Add a common PIRQ init function

Most x86 interrupt drivers will want to use the standard PIRQ routing and
table setup. Put this code in a common function so it can be used by those
drivers that want it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: Set up interrupt routing from interrupt_init()
Simon Glass [Wed, 20 Jan 2016 04:32:26 +0000 (21:32 -0700)]
dm: x86: Set up interrupt routing from interrupt_init()

At present interrupt routing is set up from arch_misc_init(). We can do it
a little later instead, in interrupt_init().

This removes the manual pirq_init() call. Where the platform does not have
an interrupt router defined in its device tree, no error is generated. Some
platforms do not have this.

Drop pirq_init() since it is no-longer used.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: Create a driver for x86 interrupts
Simon Glass [Wed, 20 Jan 2016 04:32:25 +0000 (21:32 -0700)]
dm: x86: Create a driver for x86 interrupts

It seems likely that at some point we will want a generic interrupt uclass.
But this is a big undertaking as it involves unifying code across multiple
architectures.

As a first step, create a simple IRQ uclass and a driver for x86. This can
be generalised later as required.

Adjust pirq_init() to probe this driver, which has the effect of creating
routing tables and setting up the interrupt routing. This is a start
towards making interrupts fit better with driver model.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: spi: Convert ICH SPI driver to driver model PCI API
Simon Glass [Tue, 19 Jan 2016 03:19:21 +0000 (20:19 -0700)]
dm: x86: spi: Convert ICH SPI driver to driver model PCI API

At present this SPI driver works by searching the PCI buses for its
peripheral. It also uses the legacy PCI API.

In addition the driver has code to determine the type of Intel PCH that is
used (version 7 or version 9). Now that we have proper PCH drivers we can
use those to obtain the information we need.

While the device tree has a node for the SPI peripheral it is not in the
right place. It should be on the PCI bus as a sub-peripheral of the LPC
device.

Update the device tree files to show the SPI controller within the PCH, so
that PCI access works as expected.

This patch includes Bin's fix-up patch from here:

   https://patchwork.ozlabs.org/patch/569478/

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
8 years agospi: ich: Separate out the read/write trace from normal debugging
Simon Glass [Tue, 19 Jan 2016 03:19:20 +0000 (20:19 -0700)]
spi: ich: Separate out the read/write trace from normal debugging

The trace is seldom useful for basic debugging. Allow it to be enabled
separately so that it is easier to see the more important init and error
debug messages.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: Add a driver for Intel PCH9
Simon Glass [Tue, 19 Jan 2016 03:19:19 +0000 (20:19 -0700)]
dm: x86: Add a driver for Intel PCH9

At some point we may need to distinguish between different types of PCHs,
but for existing supported platforms we only need to worry about version 7
and version 9 bridges. Add a driver for the PCH9.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: x86: Add a driver for Intel PCH7
Simon Glass [Tue, 19 Jan 2016 03:19:18 +0000 (20:19 -0700)]
dm: x86: Add a driver for Intel PCH7

At some point we may need to distinguish between different types of PCHs,
but for existing supported platforms we only need to worry about version 7
and version 9 bridges. Add a driver for the PCH7.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: Expand the uclass for Platform Controller Hubs (PCH)
Simon Glass [Tue, 19 Jan 2016 03:19:17 +0000 (20:19 -0700)]
dm: Expand the uclass for Platform Controller Hubs (PCH)

A Platform Controller Hub is an Intel concept - it is like the peripherals
on an SoC and is often in a separate chip from the CPU. The chip is typically
found on the first PCI bus and integrates multiple devices.

We have a very simple uclass to support PCHs. Add a few operations, such as
setting up the devices on the PCH and finding the SPI controller base
address. Also move it into drivers/pch/ since we will be adding a few PCH
drivers.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: pci: Avoid using pci_bus_to_hose() in the uclass
Simon Glass [Tue, 19 Jan 2016 03:19:16 +0000 (20:19 -0700)]
dm: pci: Avoid using pci_bus_to_hose() in the uclass

This function is only available for compatibility with old code. Avoid
using it in the uclass.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: pci: Add a function to write a BAR
Simon Glass [Tue, 19 Jan 2016 03:19:15 +0000 (20:19 -0700)]
dm: pci: Add a function to write a BAR

Add a driver-model version of the pci_write_bar32 function so that this is
supported in the new API.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agodm: pci: Move pci_bus_to_hose() to compatibility
Simon Glass [Tue, 19 Jan 2016 03:19:14 +0000 (20:19 -0700)]
dm: pci: Move pci_bus_to_hose() to compatibility

This function should not be used by driver-model code, so move it to the
compatibility portion.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
8 years agolcd: fix the color testpattern in 16bit mode
Andreas Neubacher [Thu, 21 Jan 2016 12:06:32 +0000 (13:06 +0100)]
lcd: fix the color testpattern in 16bit mode

The testpattern of the lcd was only working in 8bit mode(2x3 tiles in
different colors). With this patch now 8bit and 16bit is supported.
In 16bit mode there are 2x4 tiles in different colors.
The number of LCD-colors is defined in the include/configs/<boardfile>.h

Signed-off-by: Andreas Neubacher <neubacher.andreas@gmail.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
8 years agovideo: Add support for Armada XP LCD controller
Stefan Roese [Wed, 20 Jan 2016 07:13:28 +0000 (08:13 +0100)]
video: Add support for Armada XP LCD controller

This patch adds basic support for the LCD controller of the Marvell
Armada XP SoC.

An AXP based custom board port will be added later, to use this
driver to display a splash screen via the bmp command later.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
[agust: rebased]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
8 years agousb: eth: add Realtek RTL8152B/RTL8153 DRIVER
Ted Chen [Wed, 20 Jan 2016 06:24:52 +0000 (14:24 +0800)]
usb: eth: add Realtek RTL8152B/RTL8153 DRIVER

This patch adds driver support for the Realtek RTL8152B/RTL8153 USB
network adapters.

Signed-off-by: Ted Chen <tedchen at realtek.com>
[swarren, fixed a few compiler warnings]
[swarren, with permission, converted license header to SPDX]
[swarren, removed printf() spew during probe()]
Signed-off-by: Stephen Warren <swarren at nvidia.com>
8 years agoARM: rpi: enable USB keyboard
Stephen Warren [Wed, 16 Dec 2015 03:50:22 +0000 (20:50 -0700)]
ARM: rpi: enable USB keyboard

Now that the DWC2 driver supports split transactions, we can reasonably
enable support for USB keyboards. This wasn't terribly useful before
since keyboards are usually LS/FS devices, and thus require split
transaction support when attached to a USB hub such as the hub built into
the RPi model Bs.

Cc: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
8 years agousb: dwc2: Do not mix data toggle for IN and OUT endpoints, check bounds
Stefan Brüns [Sat, 23 Jan 2016 00:42:25 +0000 (01:42 +0100)]
usb: dwc2: Do not mix data toggle for IN and OUT endpoints, check bounds

USB protocol allows for 16 IN and 16 OUT endpoints (USB 2.0 Spec,
8.3.2.2 Endpoint Field). A function may have an EP 1 for both IN and OUT,
so these two should be kept separate. As EPs are either BULK or INTERRUPT
(or ISO), it is fine to have one array per direction for all transfer
types (also see e236519b7365ef75c5da6a5623f0b03d9c00cfae).

USB device address is 7 bits, so a bus may have more than 16 devices.
Check the device number, as the DWC2 driver only supports BULK/ISO for
the first 16 devices.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
8 years agousb: dwc2: Add SPLIT INTERRUPT transaction support
Stefan Brüns [Sun, 17 Jan 2016 03:09:56 +0000 (04:09 +0100)]
usb: dwc2: Add SPLIT INTERRUPT transaction support

CSPLITs for INTERRUPT transactions have to be scheduled in each microframe
following the SSPLIT. INTERRUPT transfers are executed in the next even/
odd microframe depending on the HCCHAR_ODDFRM flag.

As there are no handshakes for INTERRUPT SSPLITs the SSPLIT may have
failed (transport error) without the error being detected by the host
driver. If the last CSPLIT is not received within 4 microframes after the
SSPLIT there was a transaction error and the complete transaction has
to be restarted.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
8 years agousb: dwc2: Implement SPLIT transaction support
Stefan Brüns [Sun, 17 Jan 2016 03:09:55 +0000 (04:09 +0100)]
usb: dwc2: Implement SPLIT transaction support

In contrast to non-SPLIT transfers each transaction has to be submitted
as an individual chunk.
The transaction state machine proceeds from SSPLIT to CSPLIT if the ACK
flag is set. CSPLIT has to be repeated while NYET is set.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
8 years agousb: dwc2: add helper function for setting SPLIT HC registers
Stefan Brüns [Sun, 17 Jan 2016 03:09:54 +0000 (04:09 +0100)]
usb: dwc2: add helper function for setting SPLIT HC registers

The split register setting is used for both SSPLIT and CSPLIT transactions,
the bit for CSPLIT has to be set seperately.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
8 years agousb: dwc2: split transfer core from outer loop
Stefan Brüns [Sun, 17 Jan 2016 03:09:53 +0000 (04:09 +0100)]
usb: dwc2: split transfer core from outer loop

Split the movement of data between CPU and Host Controller from the
status handling and tracking of transfer progress.
This will also simplify adding of SPLIT transaction support.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>