oweals/u-boot.git
8 years agofs/fat: Remove two statements without effect
Stefan Brüns [Sun, 11 Sep 2016 20:51:39 +0000 (22:51 +0200)]
fs/fat: Remove two statements without effect

fatlength is a local variable which is no more used after the assignment.
s_name is not used in the function, save the strncpy.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
8 years agoMerge git://git.denx.de/u-boot-rockchip
Tom Rini [Thu, 22 Sep 2016 20:51:19 +0000 (16:51 -0400)]
Merge git://git.denx.de/u-boot-rockchip

8 years agons16650: Make sure we have CONFIG_CLK set before using infrastructure
Tom Rini [Thu, 22 Sep 2016 19:36:45 +0000 (15:36 -0400)]
ns16650: Make sure we have CONFIG_CLK set before using infrastructure

We cannot call on the CONFIG_CLK based clk_get_rate function unless
CONFIG_CLK is set.

Signed-off-by: Tom Rini <trini@konsulko.com>
8 years agoMerge branch 'master' of git://git.denx.de/u-boot-uniphier
Tom Rini [Thu, 22 Sep 2016 17:34:55 +0000 (13:34 -0400)]
Merge branch 'master' of git://git.denx.de/u-boot-uniphier

8 years agoARM: dts: uniphier: sync clock/reset controller nodes with Linux
Masahiro Yamada [Wed, 21 Sep 2016 22:42:23 +0000 (07:42 +0900)]
ARM: dts: uniphier: sync clock/reset controller nodes with Linux

Sync device trees with Linux for easier DT life.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
8 years agoclk: uniphier: allow to have clock node under syscon node
Masahiro Yamada [Wed, 21 Sep 2016 22:42:22 +0000 (07:42 +0900)]
clk: uniphier: allow to have clock node under syscon node

To sync the DT binding with Linux, the register base must be taken
from the parent syscon node.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
8 years agoclk: uniphier: move U_BOOT_DRIVER entry to core code
Masahiro Yamada [Wed, 21 Sep 2016 22:42:21 +0000 (07:42 +0900)]
clk: uniphier: move U_BOOT_DRIVER entry to core code

Move U_BOOT_DRIVER() entry from the data file (clk-uniphier-mio.c)
to the core support file (clk-uniphier-core.c) because I do not want
to repeat the driver boilerplate when I add more clock data.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
8 years agoclk: uniphier: constify clock data arrays/structures
Masahiro Yamada [Wed, 21 Sep 2016 22:42:20 +0000 (07:42 +0900)]
clk: uniphier: constify clock data arrays/structures

Clarify these clock data are constant.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
8 years agoARM: uniphier: add PLL init code for LD11 SoC
Masahiro Yamada [Wed, 21 Sep 2016 22:42:19 +0000 (07:42 +0900)]
ARM: uniphier: add PLL init code for LD11 SoC

 - Initialize PLLs (SPL initializes only DPLL to save the precious
   SPL memory footprint)
 - Adjust CPLL/MPLL to the final tape-out frequency
 - Set the Cortex-A53 clock to the maximum frequency since it is
   running at 500MHz (SPLL/4) on startup

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
8 years agoARM: uniphier: move CONFIG_SPL_* to defconfig or select
Masahiro Yamada [Tue, 20 Sep 2016 05:27:00 +0000 (14:27 +0900)]
ARM: uniphier: move CONFIG_SPL_* to defconfig or select

As I repeated in the ML, I am unhappy with config entries with bare
defaults.  Kick them out of arch/arm/mach-uniphier/Kconfig.

Currently, CONFIG_SPL_SERIAL_SUPPORT is not user-configurable
(build fails without it), but it should be fixed later anyway,
so I am moving CONFIG_SPL_SERIAL_SUPPORT to defconfigs.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoMerge branch 'master' of git://git.denx.de/u-boot-spi
Tom Rini [Thu, 22 Sep 2016 15:36:45 +0000 (11:36 -0400)]
Merge branch 'master' of git://git.denx.de/u-boot-spi

8 years agoMerge branch 'master' of git://www.denx.de/git/u-boot-microblaze
Tom Rini [Thu, 22 Sep 2016 15:36:23 +0000 (11:36 -0400)]
Merge branch 'master' of git://denx.de/git/u-boot-microblaze

8 years agoMakefile: rm u-boot.cfg dependencies are missing
Stephen Warren [Mon, 19 Sep 2016 18:20:26 +0000 (12:20 -0600)]
Makefile: rm u-boot.cfg dependencies are missing

Prior to the previous patch, a freshly created .u-boot.cfg.cmd may not
correctly represent all dependencies for u-boot.cfg. The previous change
only solved this issue for fresh builds; when performing an incremental
build, the deficient .u-boot.cfg.cmd is already present, so u-boot.cfg
is not rebuilt, and hence .u-boot.cfg.cmd is not rebuilt with the correct
content.

Solve this by explicitly detecting when the dependency file .u-boot.cfg.d
has not been integrated into .u-boot.cfg.cmd, and force u-boot.cfg to be
rebuilt in this case by deleting it first. This is possible since
if_changed_dep will always delete .u-boot.cfg.d when it executes
successfully, so its presence means either that the previous build was
made by a source tree that contained a Makefile that didn't include the
previous patch, or that the build failed part way through executing
if_changed_dep for u-boot.cfg. Forcing a rebuild of u-boot.cfg is required
in the former case, and will cause no additional work in the latter case,
since the file would be rebuilt anyway for the same reason it was being
rebuilt by the previous build.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
8 years agoMakefile: use if_change_dep for u-boot.cfg
Stephen Warren [Mon, 19 Sep 2016 18:20:25 +0000 (12:20 -0600)]
Makefile: use if_change_dep for u-boot.cfg

cmd_cpp_cfg generates a dependency output, but because it's invoked using
if_changed rather than if_changed_dep, that dependency file is ignored.
This results in Kbuild not knowing about which files u-boot.cfg depends
on, so it may not be rebuilt when required.

A practical result of this is that u-boot.cfg may continue to reference
CONFIG_ options that no longer exist in the source tree, and this can
cause the adhoc config options check to fail.

This change modifies Makefile to use if_changed_dep, which in turn causes
all dependencies to be known to the next make invocation.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
8 years agotest/py/tests/test_vboot.py: Add check that we boot the image
Tom Rini [Sun, 18 Sep 2016 13:46:58 +0000 (09:46 -0400)]
test/py/tests/test_vboot.py: Add check that we boot the image

Make sure that when we're telling bootm to boot an image, and we expect
the image to boot we get the output from sandbox that we attempted to
run Linux and that U-Boot completed its job.

Cc: Simon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
8 years agoimage-fit: Fix fit_get_node_from_config semantics
Paul Burton [Tue, 20 Sep 2016 17:17:12 +0000 (18:17 +0100)]
image-fit: Fix fit_get_node_from_config semantics

Commit bac17b78dace ("image-fit: switch ENOLINK to ENOENT") changed
fit_get_node_from_config to return -ENOENT when a property doesn't
exist, but didn't change any of its callers which check return values.
Notably it didn't change boot_get_ramdisk, which leads to U-Boot failing
to boot FIT images which don't include ramdisks with the following
message:

  Ramdisk image is corrupt or invalid

It also didn't take into account that by returning -ENOENT to denote the
lack of a property we lost the ability to determine from the return
value of fit_get_node_from_config whether it was the property or the
configuration node that was missing, which may potentially lead callers
to accept invalid FIT images.

Fix this by having fit_get_node_from_config return -EINVAL when the
configuration node isn't found and -ENOENT when the property isn't
found, which seems to make semantic sense. Callers that previously
checked for -ENOLINK are adjusted to check for -ENOENT, which fixes the
breakage introduced by commit bac17b78dace ("image-fit: switch ENOLINK
to ENOENT").

The only other user of the return fit_get_node_from_config return value,
indirectly, is bootm_find_os which already checked for -ENOENT. From a
read-through of the code I suspect it ought to have been checking for
-ENOLINK prior to bac17b78dace ("image-fit: switch ENOLINK to ENOENT")
anyway, which would make it right after this patch, but this would be
good to get verified by someone who knows this x86 code or is able to
test it.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Jonathan Gray <jsg@jsg.id.au>
Cc: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: George McCollister <george.mccollister@gmail.com>
Tested-by: George McCollister <george.mccollister@gmail.com>
8 years agoclk: rk3288: add PWM clock get rate
Kever Yang [Fri, 12 Aug 2016 09:57:05 +0000 (17:57 +0800)]
clk: rk3288: add PWM clock get rate

This patch add clk_get_rate for PWM device.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agoclk: rk3399: add pmucru controller support
Kever Yang [Fri, 12 Aug 2016 09:47:15 +0000 (17:47 +0800)]
clk: rk3399: add pmucru controller support

pmucru is a module like cru which is a clock controller manage some PLL
and module clocks.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agork3399: add a empty "sys_proto.h" header file
Kever Yang [Thu, 1 Sep 2016 02:14:20 +0000 (10:14 +0800)]
rk3399: add a empty "sys_proto.h" header file

driver/usb/dwc3/gadget.c need a "sys_proto.h" header file, add a
empty one to make compile success.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: rk3288: skip lowlevel_init process
Xu Ziyuan [Sat, 27 Aug 2016 13:53:14 +0000 (21:53 +0800)]
rockchip: rk3288: skip lowlevel_init process

lowlevel_init() is never needed for rk3288, so drop it.

Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
8 years agoboard: evb-rk3399: enable usb 2.0 host vbus power on board_init
Kever Yang [Wed, 24 Aug 2016 04:02:22 +0000 (12:02 +0800)]
board: evb-rk3399: enable usb 2.0 host vbus power on board_init

rk3399 using one gpio control signal for two usb 2.0 host port,
it's better to enable the power in board file instead of in usb driver.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agoconfig: evb-rk3399: enable fixed regulator
Kever Yang [Wed, 24 Aug 2016 04:02:23 +0000 (12:02 +0800)]
config: evb-rk3399: enable fixed regulator

This patch enable fixed regulator driver for rk3399 evb.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agodts: rk3399-evb: add regulator-fixed for usb host vbus
Kever Yang [Wed, 24 Aug 2016 04:02:21 +0000 (12:02 +0800)]
dts: rk3399-evb: add regulator-fixed for usb host vbus

rk3399 evb using one gpio to enable 5V output for both USB 2.0
host port, let's use fixed regulator for them.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agodts: rk3399: add dwc3_typec node for rk3399
MengDongyang [Wed, 24 Aug 2016 04:02:20 +0000 (12:02 +0800)]
dts: rk3399: add dwc3_typec node for rk3399

rk3399 has two dwc3 controller for type-C port, add the dts node
and enable them.

Signed-off-by: MengDongyang <daniel.meng@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agoconfig: rk3399: add usb related configs
MengDongyang [Wed, 24 Aug 2016 04:02:19 +0000 (12:02 +0800)]
config: rk3399: add usb related configs

This patch to enable configs for usb module
- xhci
- ehci
- usb storage
- usb net

Signed-off-by: MengDongyang <daniel.meng@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Squashed in patch to move to Kconfig:
  https://patchwork.ozlabs.org/patch/672543/
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agousb: host: add Kconfig for USB_XHCI_ROCKCHIP
Kever Yang [Wed, 21 Sep 2016 03:35:42 +0000 (11:35 +0800)]
usb: host: add Kconfig for USB_XHCI_ROCKCHIP

Add a Kconfig for Rockchip xhci controller.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Marek Vasut <marex@denx.de>
8 years agorockchip: select DM_USB for rockchip SoC
MengDongyang [Wed, 24 Aug 2016 04:02:18 +0000 (12:02 +0800)]
rockchip: select DM_USB for rockchip SoC

Select DM_USB to compatible with USB DM driver model.

Signed-off-by: MengDongyang <daniel.meng@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agousb: xhci-rockchip: add rockchip dwc3 controller driver
MengDongyang [Wed, 24 Aug 2016 04:02:17 +0000 (12:02 +0800)]
usb: xhci-rockchip: add rockchip dwc3 controller driver

This patch add support for rockchip dwc3 controller, which corresponding
to the two type-C port on rk3399 evb.
Only support usb2.0 currently for we have not enable the usb3.0 phy
driver and PD(fusb302) driver.

Signed-off-by: MengDongyang <daniel.meng@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
8 years agork3288: add arch_cpu_init for rk3288
Kever Yang [Fri, 12 Aug 2016 09:58:12 +0000 (17:58 +0800)]
rk3288: add arch_cpu_init for rk3288

We do some SoC level one time setting initialization in
arch_cpu_init.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agork_pwm: remove grf setting code from driver
Kever Yang [Fri, 12 Aug 2016 09:58:02 +0000 (17:58 +0800)]
rk_pwm: remove grf setting code from driver

We consider the grf setting for pwm controller select as the system
operation instead of driver operation, move it to soc init, let's
remove it from pwm driver first.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agork_pwm: use clock framework API to get module clock
Kever Yang [Fri, 12 Aug 2016 09:57:48 +0000 (17:57 +0800)]
rk_pwm: use clock framework API to get module clock

This patch use clock API instead of hardcode for get pwm clock.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
Fix printf() to debug() nit:
Signed-off-by: Simon Glass <sjg@chromium.org>
8 years agorockchip: use dummy byte only enable OF_PLATDATA
Xu Ziyuan [Fri, 12 Aug 2016 07:43:48 +0000 (15:43 +0800)]
rockchip: use dummy byte only enable OF_PLATDATA

Add a condition to determine the rk3288_sdram_channel size.

This patch fixes read sdram_channel property failed from DT on rk3288
boards, which not enable OF_PLATDATA.

Signed-off-by: Ziyuan Xu <xzy.xu@rock-chips.com>
8 years agodts: rk3399: add pinctrl for sdmmc
Kever Yang [Tue, 16 Aug 2016 09:58:14 +0000 (17:58 +0800)]
dts: rk3399: add pinctrl for sdmmc

This patch add pinctrl for sdcard which may not be initialized before
uboot.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agork3399: enable the pwm2/3 pinctrl in board init
Kever Yang [Tue, 16 Aug 2016 09:58:13 +0000 (17:58 +0800)]
rk3399: enable the pwm2/3 pinctrl in board init

There is no interrupt line for each PWM which used by pinctrl to get the
periph_id, so it's not able to enable the default pinctrl setting by pinctrl
framework, let's enable it at board_init().

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agoconfig: evb-rk3399: enable pinctrl driver
Kever Yang [Tue, 16 Aug 2016 09:58:12 +0000 (17:58 +0800)]
config: evb-rk3399: enable pinctrl driver

This patch enable rk3399 pinctrl driver and gpio driver which is sub-node
of pinctrl.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agopinctrl: add driver for rk3399
Kever Yang [Tue, 16 Aug 2016 09:58:11 +0000 (17:58 +0800)]
pinctrl: add driver for rk3399

This patch add pinctrl driver for rk3399.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agork3399: syscon: add support for pmugrf
Kever Yang [Tue, 16 Aug 2016 09:58:10 +0000 (17:58 +0800)]
rk3399: syscon: add support for pmugrf

pmugrf is a module like grf which contain some of the iomux registers
and other registers.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
8 years agoconfigs: fsl: Move SPI/SPI-FLASH configs to defconfig
Jagan Teki [Wed, 21 Sep 2016 19:55:48 +0000 (01:25 +0530)]
configs: fsl: Move SPI/SPI-FLASH configs to defconfig

Moved FSL_QSPI/SPI/SPI-FLASH configs from include/configs
into respective used defconfigs.
- CONFIG_FSL_QSPI
- CONFIG_SPI_FLASH
- CONFIG_SPI_FLASH_BAR
- CONFIG_SPI_FLASH_STMICRO

Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
8 years agospi: Kconfig: Move FSL_QSPI entry to non-dm place
Jagan Teki [Sat, 3 Sep 2016 07:28:33 +0000 (12:58 +0530)]
spi: Kconfig: Move FSL_QSPI entry to non-dm place

Since FSL_QSPI driver still supporting non-dm code
better to move the Kconfig from DM undefined place.

Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
8 years agozynqmp: Remove unnnecessary board config file for dc4
Siva Durga Prasad Paladugu [Mon, 1 Aug 2016 04:49:38 +0000 (10:19 +0530)]
zynqmp: Remove unnnecessary board config file for dc4

Remove unnecessary board specific config file for DC4
board.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Acked-by: Jagan Teki <jteki@openedev.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agoARM64: zynqmp: Use the same name for atf image everywhere
Michal Simek [Wed, 21 Sep 2016 09:42:58 +0000 (11:42 +0200)]
ARM64: zynqmp: Use the same name for atf image everywhere

Use atf-uboot.ub image instead of atf.ub.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agoARM64: zynqmp: Enable CONFIG_AHCI via Kconfig
Michal Simek [Wed, 7 Sep 2016 11:16:31 +0000 (13:16 +0200)]
ARM64: zynqmp: Enable CONFIG_AHCI via Kconfig

Move CONFIG_AHCI to defconfig.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agoARM64: zynqmp: Add support for chip ID detection
Michal Simek [Mon, 1 Feb 2016 14:05:58 +0000 (15:05 +0100)]
ARM64: zynqmp: Add support for chip ID detection

Chip ID needs to be known for loading bitstream because
U-Boot checks ID from bitstream header in BIT format.
BIN format is completely unchecked.

The chipid is get from ATF via SMC.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agofpga: xilinx: zynqmp: Add PL bitstream download support for ZynqMP
Siva Durga Prasad Paladugu [Wed, 13 Jan 2016 10:55:37 +0000 (16:25 +0530)]
fpga: xilinx: zynqmp: Add PL bitstream download support for ZynqMP

Add PL bitstream dowload support for ZynqMP
Bitstream will be validated by uboot and loaded
to PL by invoking an smc instruction to ATF which route this request to
PMU FW which will take care of loading it to PL

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agoARM64: zynqmp: Fix USB ulpi phy sequence
Michal Simek [Tue, 16 Aug 2016 13:40:05 +0000 (15:40 +0200)]
ARM64: zynqmp: Fix USB ulpi phy sequence

It should be enough to call low(5us)->high pulse for all cases
to provide proper reset. There is no need to call high->low->high.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agoARM64: zynqmp: Add support for USB ulpi phy reset via mode pins
Michal Simek [Mon, 15 Aug 2016 07:41:36 +0000 (09:41 +0200)]
ARM64: zynqmp: Add support for USB ulpi phy reset via mode pins

Mode pins can be used as output for reset. Xilinx boards are using
this feature as additional way how to reset USB phys and also others
chips on the boards.
Mode1 is used on all these boards for this feature.
Let SPL toggle reset on this pin by default.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agoARM64: zynqmp: Add support for DFU from SPL
Michal Simek [Fri, 19 Aug 2016 12:14:52 +0000 (14:14 +0200)]
ARM64: zynqmp: Add support for DFU from SPL

SPL needs to have bigger stack size because of USB.
Simple malloc needs to be disabled because dfu code requires different
allocation functions. There is no space in OCM that's why random place
in DDR is used.

BOOTD must be disabled because it is causing compilation error.

All variables are disabled and used only variables valid for DFU because
they are simple huge. Including automatic variables added by
CONFIG_ENV_VARS_UBOOT_CONFIG.
Hardcode addresses for u-boot, atf, kernel and dtb
just for SPL DFU code.

Enable SPL DFU for zcu100.
Create new usb_dfu_spl variable just to run Linux kernel loaded in SPL.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agoARM: Add new BOOT_DEVICE_DFU boot mode
Michal Simek [Tue, 30 Aug 2016 13:38:57 +0000 (15:38 +0200)]
ARM: Add new BOOT_DEVICE_DFU boot mode

This enum is needed when SPL_DFU is enabled.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agoARM64: zynqmp: Add USB boot mode
Michal Simek [Fri, 29 Apr 2016 11:00:10 +0000 (13:00 +0200)]
ARM64: zynqmp: Add USB boot mode

Add USB boot mode.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agoARM64: zynqmp: Move BSS location to the beginning of ram
Michal Simek [Tue, 30 Aug 2016 12:58:46 +0000 (14:58 +0200)]
ARM64: zynqmp: Move BSS location to the beginning of ram

With SPL_DFU support memory layout needs to be cleanup
that's why move bss to the start of memory.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agospi: zynq: Use variable to remove u32 to u64 conversions
Michal Simek [Thu, 1 Sep 2016 10:51:27 +0000 (12:51 +0200)]
spi: zynq: Use variable to remove u32 to u64 conversions

Current code generates warning when it is compiled for arm64:
Warnings:
In file included from drivers/spi/zynq_spi.c:14:0:
drivers/spi/zynq_spi.c: In function ‘zynq_spi_init_hw’:
drivers/spi/zynq_spi.c:95:9: warning: large integer implicitly truncated
to unsigned type [-Woverflow]
  writel(~ZYNQ_SPI_ENR_SPI_EN_MASK, &regs->enr);
         ^
./arch/arm/include/asm/io.h:146:34: note: in definition of macro
‘writel’
 #define writel(v,c) ({ u32 __v = v; __iowmb(); __arch_putl(__v,c); __v;
})
                                  ^
drivers/spi/zynq_spi.c: In function ‘zynq_spi_release_bus’:
drivers/spi/zynq_spi.c:177:9: warning: large integer implicitly
truncated to unsigned type [-Woverflow]
  writel(~ZYNQ_SPI_ENR_SPI_EN_MASK, &regs->enr);
         ^
./arch/arm/include/asm/io.h:146:34: note: in definition of macro
‘writel’
 #define writel(v,c) ({ u32 __v = v; __iowmb(); __arch_putl(__v,c); __v;
})
                                  ^
This patch is using one variable to do conversion via u32 variable.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
8 years agoARM64: zynqmp: Fix usb_gadget_handle_interrupt routine
Michal Simek [Thu, 1 Sep 2016 09:16:40 +0000 (11:16 +0200)]
ARM64: zynqmp: Fix usb_gadget_handle_interrupt routine

Function is defined in g_dnl.h and have different parameter
then it is used. This patch fixes it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agoARM64: zynqmp: Force certain bootmode for SPL
Michal Simek [Tue, 30 Aug 2016 14:17:27 +0000 (16:17 +0200)]
ARM64: zynqmp: Force certain bootmode for SPL

ZynqMP provides an option to overwrite bootmode setting which
can change SPL behavior.
For example: boot SPL via JTAG and then SPL loads images from SD.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agoARM64: zynqmp: Wire up both USBs available on ZynqMP
Michal Simek [Mon, 8 Aug 2016 08:11:26 +0000 (10:11 +0200)]
ARM64: zynqmp: Wire up both USBs available on ZynqMP

The second USB wasn't enabled. This patch fixes it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agofpga: Add Kconfig to fpga subsystem
Michal Simek [Mon, 19 Sep 2016 08:41:55 +0000 (10:41 +0200)]
fpga: Add Kconfig to fpga subsystem

Add missing Kconfig to fpga subsystem to be able
to add new options.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
8 years agoomap4_panda: Disable ext2/3/4 support in SPL
Tom Rini [Wed, 21 Sep 2016 22:38:41 +0000 (18:38 -0400)]
omap4_panda: Disable ext2/3/4 support in SPL

Pandaboard is growing again, disable EXT2/3/4 support in SPL save more
space.

Signed-off-by: Tom Rini <trini@konsulko.com>
8 years agoclk.h: Add <asm/errno.h>
Tom Rini [Wed, 21 Sep 2016 21:56:01 +0000 (17:56 -0400)]
clk.h: Add <asm/errno.h>

Since we return -ENOSYS in some cases we must have <asm/errno.>
available.

Signed-off-by: Tom Rini <trini@konsulko.com>
8 years agosf: Move flags macro's to spi_flash_params{} members
Jagan Teki [Mon, 8 Aug 2016 13:55:55 +0000 (19:25 +0530)]
sf: Move flags macro's to spi_flash_params{} members

This patch moves flags macro's to respective member position on
spi_flash_params{}, for better readabilty and finding the
respective member macro's easily.

Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Cc: Vignesh R <vigneshr@ti.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
8 years agosf: Add CONFIG_SPI_FLASH_USE_4K_SECTORS in spi_flash
Jagan Teki [Mon, 8 Aug 2016 11:53:56 +0000 (17:23 +0530)]
sf: Add CONFIG_SPI_FLASH_USE_4K_SECTORS in spi_flash

Add CONFIG_SPI_FLASH_USE_4K_SECTORS in spi_flash code from header file.

Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Cc: Vignesh R <vigneshr@ti.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
8 years agosf: Remove SECT_32K
Jagan Teki [Mon, 8 Aug 2016 11:49:08 +0000 (17:19 +0530)]
sf: Remove SECT_32K

SECT_32K never used anywhere in the code.

Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Cc: Vignesh R <vigneshr@ti.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
8 years agospi: Remove SPI_RX_FAST
Jagan Teki [Wed, 10 Aug 2016 15:18:14 +0000 (20:48 +0530)]
spi: Remove SPI_RX_FAST

Removed SPI_RX_FAST since default read for spi slaves
are always 1-wire fast read.

Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Cc: Vignesh R <vigneshr@ti.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
8 years agospi: Use mode for rx mode flags
Jagan Teki [Mon, 8 Aug 2016 11:42:12 +0000 (17:12 +0530)]
spi: Use mode for rx mode flags

Make rx mode flags as generic to spi, earlier mode_rx is
maintained separately because of some flash specific code.

Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Cc: Vignesh R <vigneshr@ti.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
8 years agosf: Remove e_rd_cmd from param table
Jagan Teki [Mon, 8 Aug 2016 11:32:18 +0000 (17:02 +0530)]
sf: Remove e_rd_cmd from param table

e_rd_cmd is maintained separately for fastest read command code,
since the read commands are computed normally this e_rd_cmd
is not required in spi_flash_params table.

Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Cc: Vignesh R <vigneshr@ti.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
8 years agosf: Simplify fastest read cmd code
Jagan Teki [Mon, 8 Aug 2016 11:20:45 +0000 (16:50 +0530)]
sf: Simplify fastest read cmd code

Fastest read command code look for fastest read command
taking inputs from spi->mode_rx and flags from param table
and controller mode_rx is always been a priority.

Since mode_rx is always set from controller side this optimized
code doesn't require much and this code required exctra overhead like
1) Maintain e_rx_cmd in param table
2) Maintain mode_rx in spi_slave {}

Hence removed this code, and look for read command from normal
spi->mode from spi_slave{} and params->flags

Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Cc: Vignesh R <vigneshr@ti.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
8 years agospi: ti_qspi: Remove unnecessary udelay for AM437x
Vignesh R [Wed, 7 Sep 2016 09:48:23 +0000 (15:18 +0530)]
spi: ti_qspi: Remove unnecessary udelay for AM437x

This udelay() was added as an HACK and is no longer required. All
read/write/erase operations work fine even without this delay. Hence,
remove the udelay() call.

Tested read/write/erase operation on AM437x SK. Also tested QSPI Boot.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
8 years agospi: ti_qspi: use 128 bit transfer mode when writing to flash
Vignesh R [Wed, 7 Sep 2016 09:48:22 +0000 (15:18 +0530)]
spi: ti_qspi: use 128 bit transfer mode when writing to flash

TI QSPI has four 32 bit data registers which can be used to transfer 16
bytes of data at once. The register group QSPI_SPI_DATA_REG_3,
QSPI_SPI_DATA_REG_2, QSPI_SPI_DATA_REG_1 and QSPI_SPI_DATA_REG is
treated as a single 128-bit word for shifting data in and out. The bit
at QSPI_SPI_DATA_REG_3[31] position is the first bit to be shifted out
in case of 128 bit transfer mode. Therefore the first byte to be written
to flash should be at QSPI_SPI_DATA_REG_3[31-25] position.
Instead of writing 1 byte at a time when interacting with SPI NOR flash,
make use of all the four registers so that 16 bytes can be transferred
in one go.

With this patch, the flash write speed increases from ~250KBs/ to
~650KB/s on DRA74 EVM.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
8 years agospi: zynq_spi: Fix infinite looping while xfer
Lad, Prabhakar [Sat, 30 Jul 2016 21:28:24 +0000 (22:28 +0100)]
spi: zynq_spi: Fix infinite looping while xfer

During spi transfer, for example:
sspi 1:1.0 8 ff

the rx_len values will  be:
rx_len = 0
rx_len = 4294967295

This caused a busy looping during xfer, this patch fixes it
by adding a check while reading the rx fifo

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
8 years agoMerge branch 'master' of git://git.denx.de/u-boot-mips
Tom Rini [Wed, 21 Sep 2016 18:50:18 +0000 (14:50 -0400)]
Merge branch 'master' of git://git.denx.de/u-boot-mips

8 years agoMerge branch 'master' of http://git.denx.de/u-boot-mmc
Tom Rini [Wed, 21 Sep 2016 15:48:02 +0000 (11:48 -0400)]
Merge branch 'master' of git.denx.de/u-boot-mmc

8 years agoMIPS: Hang if run on a secondary CPU
Paul Burton [Wed, 21 Sep 2016 13:59:54 +0000 (14:59 +0100)]
MIPS: Hang if run on a secondary CPU

Some systems are configured such that multiple CPUs begin running from
their reset vector following a system reset. If this occurs then U-Boot
will be run on multiple CPUs simultaneously, which causes all sorts of
issues as the multiple instances of U-Boot clobber each other.

Prevent this from happening by simply hanging with an infinite loop if
we run on a CPU whose ID, as determined by GlobalNumber or EBase.CPUNum
as appropriate, is non-zero.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoMIPS: Fix cache maintenance in relocate_code & simplify
Paul Burton [Wed, 21 Sep 2016 10:11:06 +0000 (11:11 +0100)]
MIPS: Fix cache maintenance in relocate_code & simplify

The relocate_code function was handling cache maintenance incorrectly.
It copied U-Boot to its new location, flushed the caches & then
proceeded to apply relocations & jump to the new code without flushing
the caches again. This is problematic as the instruction cache could
potentially have already fetched instructions that hadn't had relocs
applied.

Rework this to perform the flush_cache call using the code in the
original copy of U-Boot, after having applied relocations to the new
copy of U-Boot. The new U-Boot can then be jumped to safely once that
cache flush has been performed.

As part of this, since the old U-Boot is used up until after that cache
flush, complexity around loading values from the GOT using a jump & link
instruction & loads from a table is removed. Instead we can simply load
the needed values with PTR_LA fromt the original GOT.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoboston: Introduce support for the MIPS Boston development board
Paul Burton [Thu, 8 Sep 2016 06:47:39 +0000 (07:47 +0100)]
boston: Introduce support for the MIPS Boston development board

This patch introduces support for building U-Boot to run on the MIPS
Boston development board. This is a board built around an FPGA & an
Intel EG20T Platform Controller Hub, used largely as part of the
development of new CPUs and their software support. It is essentially
the successor to the older MIPS Malta board.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoclk: boston: Providea simple driver for Boston board clocks
Paul Burton [Thu, 8 Sep 2016 06:47:38 +0000 (07:47 +0100)]
clk: boston: Providea simple driver for Boston board clocks

Add a simple driver for the clocks provided by the MIPS Boston
development board. The system provides information about 2 clocks whose
rates are fixed by the bitfile flashed in the boards FPGA, and this
driver simply reads the rates of these 2 clocks.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
8 years agodm: syscon: Provide a generic syscon driver
Paul Burton [Thu, 8 Sep 2016 06:47:37 +0000 (07:47 +0100)]
dm: syscon: Provide a generic syscon driver

Provide a trivial syscon driver matching the generic "syscon" compatible
string, allowing for simple system controllers to be used without a
custom driver just as in Linux.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agodm: core: Match compatible strings in order of priority
Paul Burton [Thu, 8 Sep 2016 06:47:36 +0000 (07:47 +0100)]
dm: core: Match compatible strings in order of priority

Device model drivers have previously been matched to FDT nodes by virtue
of being the first driver in the driver list to be compatible with the
node. This ignores the fact that compatible strings in the device tree
are listed in order of priority - that is, if we have a node with 2
compatible strings & a driver that matches each then we should always
probe the driver that matches the first compatible string.

Fix this by looping through the compatible strings for a node when
attempting to bind it in lists_bind_fdt and checking each driver for
a match of the first string, then each driver for a match of the second
string etc. Effectively this inverts the loops over compatible strings &
drivers.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agodm: regmap: Implement simple regmap_read & regmap_write
Paul Burton [Thu, 8 Sep 2016 06:47:35 +0000 (07:47 +0100)]
dm: regmap: Implement simple regmap_read & regmap_write

The regmap_read & regmap_write functions were previously declared in
regmap.h but not implemented anywhere. The regmap implementation &
commit message of 6f98b7504f70 ("dm: Add support for register maps
(regmap)") indicate that only memory mapped accesses are supported for
now, so providing simple implementations of regmap_read & regmap_write
is trivial. The access size is presumed to be 4 bytes & endianness is
presumed native, which are the defaults for the regmap code in Linux.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
8 years agonet: pch_gbe: Make 64 bit safe
Paul Burton [Thu, 8 Sep 2016 06:47:34 +0000 (07:47 +0100)]
net: pch_gbe: Make 64 bit safe

The pch_gbe driver previously casted pointers to & from unsigned 32 bit
integers in many locations. This breaks the driver on 64 bit systems,
producing streams of compiler warnings about mismatched pointer &
integer sizes and then failing to keep track of addresses correctly at
runtime.

Fix the driver for 64 bit systems by using unsigned longs in place of
the previously used 32 bit integers.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
8 years agonet: pch_gbe: Use dm_pci_map_bar to discover MMIO base
Paul Burton [Thu, 8 Sep 2016 06:47:33 +0000 (07:47 +0100)]
net: pch_gbe: Use dm_pci_map_bar to discover MMIO base

Reading the PCI BAR & converting the result to a physical address is not
safe across all architectures. For example on MIPS the virtual:physical
mapping is not 1:1, so we cannot directly make use of the physical
address.

Use the more generic BAR-mapping function dm_pci_map_bar to discover the
MMIO base address, which should work across architectures.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
8 years agopci: Flip condition for detecting non-PCI parent devices
Paul Burton [Thu, 8 Sep 2016 06:47:32 +0000 (07:47 +0100)]
pci: Flip condition for detecting non-PCI parent devices

In pci_uclass_pre_probe an attempt is made to detect whether the parent
of a device is a PCI device and that the device is thus a bridge. This
was being done by checking whether the parent of the device is of the
UCLASS_ROOT class. This causes problems if the PCI controller is a child
of some other non-PCI node, for example a simple-bus node.

For example, if the device tree contains something like the following
then pci_uclass_pre_probe would incorrectly believe that the PCI
controller is a bridge, with a PCI parent:

  / {
    some_child {
      compatible = "simple-bus";
      #address-cells = <1>;
      #size-cells = <1>;
      ranges = <>;

      pci_controller: pci@10000000 {
        compatible = "my-pci-controller";
        device_type = "pci";
        reg = <0x10000000 0x2000000>;
      };
    };
  };

Avoid this incorrect detection of bridges by instead checking whether
the parent devices class is UCLASS_PCI and treating a device as a bridge
when this is true, making use of device_is_on_pci_bus to perform this
test.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
8 years agopci: xilinx: Add a driver for Xilinx AXI to PCIe bridge
Paul Burton [Thu, 8 Sep 2016 06:47:31 +0000 (07:47 +0100)]
pci: xilinx: Add a driver for Xilinx AXI to PCIe bridge

This patch adds a driver for the Xilinx AXI bridge for PCI express, an
IP block which can be used on some generations of Xilinx FPGAs. This is
mostly a case of implementing PCIe ECAM specification, but with some
quirks about what devices are valid to access.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
8 years agodt-bindings: Add interrupt-controller/mips-gic.h header
Paul Burton [Thu, 8 Sep 2016 06:47:30 +0000 (07:47 +0100)]
dt-bindings: Add interrupt-controller/mips-gic.h header

Import a copy of the dt-bindings/interrupt-controller/mips-gic.h header
from Linux, such that we can use device trees which include it without
modification.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoserial: ns16550: Support clocks via phandle
Paul Burton [Thu, 8 Sep 2016 06:47:29 +0000 (07:47 +0100)]
serial: ns16550: Support clocks via phandle

Previously ns16550 compatible UARTs probed via device tree have needed
their device tree nodes to contain a clock-frequency property. An
alternative to this commonly used with Linux is to reference a clock via
a phandle. This patch allows U-Boot to support that, retrieving the
clock frequency by probing the appropriate clock device.

For example, a system might choose to provide the UART base clock as a
reference to a clock common to multiple devices:

  sys_clk: clock {
    compatible = "fixed-clock";
    #clock-cells = <0>;
    clock-frequency = <10000000>;
  };

  uart0: uart@10000000 {
    compatible = "ns16550a";
    reg = <0x10000000 0x1000>;
    clocks = <&sys_clk>;
  };

  uart1: uart@10000000 {
    compatible = "ns16550a";
    reg = <0x10001000 0x1000>;
    clocks = <&sys_clk>;
  };

This removes the need for the frequency information to be duplicated in
multiple nodes and allows the device tree to be more descriptive of the
system.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
8 years agoclk: Use dummy clk_get_by_* functions when CONFIG_CLK is disabled
Paul Burton [Thu, 8 Sep 2016 06:47:28 +0000 (07:47 +0100)]
clk: Use dummy clk_get_by_* functions when CONFIG_CLK is disabled

The implementations of clk_get_by_index & clk_get_by_name are only
available when CONFIG_CLK is enabled. Provide the dummies when this is
not the case in order to avoid build failures.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
8 years agoMIPS: Ensure cache ops complete in mips_cache_reset
Paul Burton [Wed, 21 Sep 2016 10:18:59 +0000 (11:18 +0100)]
MIPS: Ensure cache ops complete in mips_cache_reset

Ensure that cache operations complete before returning from
mips_cache_reset by placing a completion barrier (sync instruction)
before the return. Without this there is no guarantee that the cache ops
will complete before any subsequent memory accesses, since they are
indexed cache ops & thus not implicitly ordered with memory accesses.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoMIPS: Clear hazard between TagLo writes & cache ops
Paul Burton [Wed, 21 Sep 2016 10:18:58 +0000 (11:18 +0100)]
MIPS: Clear hazard between TagLo writes & cache ops

Writing to the coprocessor 0 TagLo registers introduces an execution
hazard in that we need that write to complete before any cache
instructions execute. Ensure that hazard is cleared by inserting an ehb
instruction between the TagLo writes & cache op loop.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoMIPS: Ensure Config.K0=2 applies before any memory accesses
Paul Burton [Wed, 21 Sep 2016 10:18:57 +0000 (11:18 +0100)]
MIPS: Ensure Config.K0=2 applies before any memory accesses

During boot we set Config.K0=2 (uncached) such that any accesses to the
kseg0 memory region are performed uncached before the caches are
initialised. This write to the Config register introduces an execution
hazard between it & any following memory accesses (such as the load of
_gp), which we need to clear in order to ensure those memory accesses
are actually performed uncached. Clear this execution hazard with the
insertion of an ehb execution hazard barrier instruction.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoMIPS: Malta: Enable CM & L2 support
Paul Burton [Wed, 21 Sep 2016 10:18:56 +0000 (11:18 +0100)]
MIPS: Malta: Enable CM & L2 support

Enable support for the MIPS Coherence Manager & L2 caches on the MIPS
Malta board, removing the need for us to attempt to bypass the L2 during
boot (which would fail with recent CPUs that expose L2 config via the CM
anyway).

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoMIPS: Join the coherent domain when a CM is present
Paul Burton [Wed, 21 Sep 2016 10:18:55 +0000 (11:18 +0100)]
MIPS: Join the coherent domain when a CM is present

MIPS Linux expects the bootloader to leave the boot CPU a member of the
coherent domain when running on a system with a CM, and we will need to
do so if we wish to make use of IOCUs to have cache-coherent DMA in
U-Boot (and on some systems there is no choice in that matter). When a
CM is present, join the coherent domain after completing cache
initialisation.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoMIPS: L2 cache support
Paul Burton [Wed, 21 Sep 2016 10:18:54 +0000 (11:18 +0100)]
MIPS: L2 cache support

This patch adds support for initialising & maintaining L2 caches on MIPS
systems. The L2 cache configuration may be advertised through either
coprocessor 0 or the MIPS Coherence Manager depending upon the system,
and support for both is included.

If the L2 can be bypassed then we bypass it early in boot & initialise
the L1 caches first, such that we can start making use of the L1
instruction cache as early as possible. Otherwise we initialise the L2
first such that the L1s have no opportunity to generate access to the
uninitialised L2.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoMIPS: Map CM Global Control Registers
Paul Burton [Wed, 21 Sep 2016 10:18:53 +0000 (11:18 +0100)]
MIPS: Map CM Global Control Registers

Map the Global Control Registers (GCRs) provided by the MIPS Coherence
Manager (CM) in preparation for using some of them in later patches.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoMIPS: Define register names for cache init
Paul Burton [Wed, 21 Sep 2016 10:18:52 +0000 (11:18 +0100)]
MIPS: Define register names for cache init

Define names for registers holding cache sizes throughout
mips_cache_reset, in order to make the code easier to read & allow for
changing register assignments more easily.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoMIPS: If we don't need DDR for cache init, init cache first
Paul Burton [Wed, 21 Sep 2016 10:18:51 +0000 (11:18 +0100)]
MIPS: If we don't need DDR for cache init, init cache first

On systems where cache initialisation doesn't require zeroed memory (ie.
systems where CONFIG_SYS_MIPS_CACHE_INIT_RAM_LOAD is not defined)
perform cache initialisation prior to lowlevel_init & DDR
initialisation. This allows for DDR initialisation code to run cached &
thus significantly faster.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoMIPS: Preserve Config implementation-defined bits
Paul Burton [Wed, 21 Sep 2016 10:18:50 +0000 (11:18 +0100)]
MIPS: Preserve Config implementation-defined bits

The coprocessor 0 Config register includes 9 implementation defined
bits, which in some processors do things like enable write combining or
other functionality. We ought not to wipe them to 0 during boot. Rather
than doing so, preserve their value & only clear the bits standardised
by the MIPS architecture.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoMIPS: Enable use of the instruction cache earlier
Paul Burton [Wed, 21 Sep 2016 10:18:49 +0000 (11:18 +0100)]
MIPS: Enable use of the instruction cache earlier

Enable use of the instruction cache immediately after it has been
initialised. This will only take effect if U-Boot was linked to run from
kseg0 rather than kseg1, but when this is the case the data cache
initialisation code will run cached & thus significantly faster.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoMIPS: Probe cache line sizes once during boot
Paul Burton [Wed, 21 Sep 2016 10:18:48 +0000 (11:18 +0100)]
MIPS: Probe cache line sizes once during boot

Rather than probing the cache line sizes on every call of any cache
maintenance function, probe them once during boot & store the values in
the global data structure for later use. This will reduce the overhead
of the cache maintenance functions, which isn't a big deal yet but
becomes more important once L2 caches which may expose their properties
via coprocessor 2 or the CM are supported.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoMIPS: ath79: Use mach_cpu_init instead of arch_cpu_init
Paul Burton [Wed, 21 Sep 2016 10:18:47 +0000 (11:18 +0100)]
MIPS: ath79: Use mach_cpu_init instead of arch_cpu_init

In order to prepare for MIPS arch code making use of arch_cpu_init in a
later patch, stop using it from ath79 SoC code & instead use the new
mach_cpu_init which is provided for this purpose.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
8 years agoboard_f: Add a mach_cpu_init callback
Paul Burton [Wed, 21 Sep 2016 10:18:46 +0000 (11:18 +0100)]
board_f: Add a mach_cpu_init callback

Currently we have a mismash of architectures which use arch_cpu_init
from architecture-wide code (arc, avr32, blackfin, mips, nios2, xtensa)
and architectures which use arch_cpu_init from machine/SoC level code
(arm, x86).

In order to clean this mess up & allow for both use cases, introduce a
new mach_cpu_init callback which is run immediately after arch_cpu_init.
This will allow for architectures to have arch-wide code without needing
individual machines to all implement their own arch_cpu_init with a call
to some common function.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
8 years agomips: Add MIPSfpga platform support
Zubair Lutfullah Kakakhel [Fri, 29 Jul 2016 14:11:20 +0000 (15:11 +0100)]
mips: Add MIPSfpga platform support

MIPSfpga is an FPGA based dev platform.

In a nutshell, its a microAptiv cpu core with lots of Xilinx IP blocks

The FPGA dev board used is the Nexys4DDR board by Digilent.

For more information, check the Readme file in board/imgtec/xilfpga

Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
8 years agomips: xilfpga: Add device tree files
Zubair Lutfullah Kakakhel [Fri, 29 Jul 2016 14:11:19 +0000 (15:11 +0100)]
mips: xilfpga: Add device tree files

Mostly the same as the Kernel upstream device tree file except for

- alias for the serial console node
- ethernet node as the ethernet stuff isn't upstream on kernel.org yet
- uart clock-frequency passed directly in the node

Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
8 years agonet: emaclite: Enable driver for MIPS
Zubair Lutfullah Kakakhel [Wed, 27 Jul 2016 11:25:09 +0000 (12:25 +0100)]
net: emaclite: Enable driver for MIPS

Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>