Commit graph

165 commits

Author SHA1 Message Date
Jagan Teki
01cc103915 ram: rk3399: Introduce sys_reg3 for more capacity info
cs0_row, cs1_row and cs1_col needs more bits to show its
correct value, update to make use of both sys_reg2,
sys_reg3.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
(Squash similar patches into one patch)
Signed-off-by: Kever Yang <Kever.yang@rock-chips.com>
2019-07-20 23:59:44 +08:00
Jagan Teki
879f9fed6a ram: rk3399: Simply existing dram enc macro
Add simplified and meaningful macro for all setting.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
(Squash the similar patches into 1 patch)
Signed-off-by: Kever Yang <Kever.yang@rock-chips.com>
2019-07-20 23:59:44 +08:00
Jagan Teki
cb13534abe ram: rk3399: debug: Add sdram_print_stride
Add code to print the channel stride, this would help to
print the stride of associated channel.

Here is sample print on LPDDR4, 50MHz.
256B stride

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
2019-07-19 11:11:10 +08:00
Jagan Teki
07894f5aac ram: rockchip: debug: Add sdram_print_ddr_info
Add sdram ddr info print support, this would help to
observe the sdram base parameters.

Here is sample print on LPDDR4, 50MHz channel 0
BW=32 Col=10 Bk=8 CS0 Row=15 CS1 Row=15 CS=2 Die BW=16

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
2019-07-19 11:11:10 +08:00
Jagan Teki
07112672a5 ram: rockchip: Add debug sdram driver
Add sdram driver to handle debug across rockchip SoCs.

This would help to improve code debugging feature for
sdram drivers in rockchip family, whoever wants to
debug the driver should call these core debug code on
their respective platform sdram drivers.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
2019-07-19 11:11:09 +08:00
Jagan Teki
7757d1102f arm: include: rockchip: Add DDR4 enum
Add DDR4 enum number in common header.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
2019-07-19 11:11:09 +08:00
Jagan Teki
fafd2ad4df arm: include: rockchip: Move dramtypes to common header
dramtype enum numbers as common across all dram controllers
in rockchip, so move the eneum values in common header.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
2019-07-19 11:11:09 +08:00
Jagan Teki
e5e444aaa5 ram: rk3399: Move common sdram structures in common header
Move common sdram structures like sdram_cap_info, sdram_base_params
into sdram_common header, this would help to reuse the same
from another controllers like px30.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
2019-07-19 11:11:09 +08:00
Jagan Teki
1372a6ec47 ram: rk3399: s/rk3399_base_params/sdram_base_params
Most of the ddr parameters are common in rk3399_base_params
structure and which would reuse it in another controller like
px30 in future.

So, rename the structure from rk3399_base_params into
sdram_base_params.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
2019-07-19 11:11:09 +08:00
Jagan Teki
355490dc5c ram: rockchip: rk3399: Add cap_info structure
Group common ddr attributes like
- rank
- col
- bk
- bw
- dbw
- row_3_4
- cs0_row
- cs1_row
- ddrconfig

into a common cap_info structure for more code readability and extend
if possible based on the new features.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
2019-07-19 11:11:09 +08:00
Christoph Muellner
dee5ad5ae7 rockchip: pinctrl: rk3399: Add support for UART3.
This patch adds the missing GRF bit definitions for UART3 on the RK3399.

Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-05-30 18:22:35 +08:00
Kever Yang
6b780e441b rockchip: boot0: update CONFIG_ROCKCHIP_SPL_RESERVE_IRAM for SPL only
The CONFIG_ROCKCHIP_SPL_RESERVE_IRAM is for SPL only, add
condition to limit it not affect TPL.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-05-08 17:34:12 +08:00
Kever Yang
15f09a1a83 rockchip: use 'arch-rockchip' as header file path
Rockchip use 'arch-rockchip' instead of arch-$(SOC) as common
header file path, so that we can get the correct path directly.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:05 +02:00
Kever Yang
9f09b9d3cc rockchip: arm: remove no use macro
TIMER7_BASE is no used by source code now, remove it.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:05 +02:00
Simon Glass
9e92116bc8 rockchip: Add support for chromebook_bob
Bob is a 10-inch chromebook produced by Asus. It has two USB 3.0 type-C
ports, 4GB of SDRAM, WiFi and a 1280x800 display. It uses its USB ports
for both power and external display. It includes a Chrome OS EC
(Cortex-M3) to provide access to the keyboard and battery functions.

Support so far includes only:
- UART
- SDRAM
- MMC, SD card
- Cros EC (but not keyboard)

Not included:
- Keyboard
- Display
- Sound
- USB
- TPM

Bob is quite similar to Kevin, the Samsung Chromebook Plus, but support
for this is not provided in this series.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-02-01 16:59:13 +01:00
Simon Glass
aa48c94ca8 rockchip: Implement spl_gpio in the GPIO driver
Allow rockchip boards to use GPIOs before driver model is ready. This is
really only useful for setting GPIOs to enable the early debug console, if
needed on some platforms.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-02-01 16:59:13 +01:00
Simon Glass
3ec6f11c7d rockchip: Move pull-up/down enum into a common file
At present this enum is only available to rk3288. Move it so that other
rockchip SoCs can access it. It is needed for the SPL GPIO driver for
rk3999 in a later patch.

Also adjust the enum name to lower case.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-02-01 16:59:13 +01:00
Simon Glass
3dbfe5ae61 rockchip: rk3288: Add i2s pinctrl and clock support
Add support for setting pinctrl and clock for I2S on rk3288. This allows
the sound driver to operate. These settings were created by rkmux.py

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-02-01 16:59:10 +01:00
Christoph Muellner
af765a49ba rockchip: rk3399: Initialize CPU B clock.
This patch sets the PLL of CPU cluster B (BPLL) to 600 MHz.
This decreases the boot time of Linux 4.19 by about 8%.

The 600 MHz are inspired by the 600 MHz used for LPLL initialization
(came in with commit 9f636a249c).

Tested on RK3399-Q7 on Haikou base board.

Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-11-30 21:56:45 +01:00
Otavio Salvador
5d2cb15c77 ARM: rockchip: rv1108: Sync clock with vendor tree
Make adjustments to the rv1108 clock driver in order to align it
with the internal Rockchip version.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-11-30 21:56:44 +01:00
Heiko Stuebner
5b5ca4c0d4 rockchip: rk3188: add support for usb-uart functionality
Rockchip socs can route the debug uart pins through the d+ and d- pins
of one specific usbphy per soc. Add a config option and implement the
setting on the rk3188.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[Fixed up to mark grf as maybe unused:]
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-11-30 19:03:16 +01:00
Alberto Panizzo
f68c8e827c usb: rockchip: implement K_FW_LBA_ERASE_10 command
This command is part of the write partition sequence performed by
rkdeveloptool: one partition is first completely erased and
than wrote.

Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-08-08 22:22:07 +02:00
Alberto Panizzo
e11f9166f3 usb: rockchip: implement K_FW_LBA_READ_10 command
This patch implement reading blocks form selected device with
LBA addressing.

Corresponding command on workstation is:
rkdeveloptool rl <start_blk> <blk_cnt> <file>

While we support reading more than one blocks per K_FW_LBA_READ_10
request, rkdeveloptool and original rockchip tool do perform
chunk reads limiting the maximum size per chunk far lower
than max int values.

Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-08-08 22:22:07 +02:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

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

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

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Alexander Kochetkov
7a6d7d3e12 rockchip: pinctrl: rk3188: Move the iomux definitions into pinctrl-driver
Clean the iomux definitions at grf_rk3188.h, and move them into
pinctrl-driver for resolving the compiling error of redefinition.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-28 23:30:30 +02:00
Alexander Kochetkov
b1d093d256 rockchip: pinctrl: rk3036: Move the iomux definitions into pinctrl-driver
Clean the iomux definitions at grf_rk3036.h, and move them into
pinctrl-driver for resolving the compiling error of redefinition.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-28 23:30:30 +02:00
Philipp Tomsich
41837e8a6b rockchip: pinctrl: rk3399: add support for I2C[123467]
This adds support for the (to date unsupported) I2C controllers 1~4
and 6~7 (i.e. now all controllers except I2C5, which is not accessible
on the RK3399-Q7, are supported by pinctrl).

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-28 23:30:30 +02:00
Philipp Tomsich
339267a08d rockchip: pinctrl: rk3399: fix GPIO2B1 and GPIO2B2 shift value
The shift values for GPIO2B1 and GPIO2B2 had in fact referred to
GPIO2B0 and GPIO2B1, respectively.  This substitutes the correct
values.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-28 23:30:30 +02:00
David Wu
64a12202ed clk: rockchip: clk_rk3368: Implement "assign-clock-parent"
Implement the setting parent for gmac clock, and add internal
pll div set for mac clk.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-01-28 17:12:39 +01:00
David Wu
424324d3ca rockchip: pinctrl: rk322x: Move the iomux definitions into pinctrl-driver
Clean the iomux definitions at grf_rk322x.h, and move them into
pinctrl-driver for resolving the compiling error of redefinition.
After that, define the uart2 iomux at rk322x-board file.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-01-28 17:12:38 +01:00
David Wu
dfb886d4f2 rockchip: pinctrl: Add rk3328 gmac pinctrl support
Need to set gmac m1 pins iomux, gmac m0 tx pins, select bit2
and bit10 at com iomux register. After that, set rgmii m1 tx
pins to 12ma drive-strength, and clean others to 2ma.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-01-28 17:12:37 +01:00
David Wu
301fff4e57 rockchip: pinctrl: rk3328: Move the iomux definitions into pinctrl-driver
Clean the iomux definitions at grf_rk3328.h, and move them into
pinctrl-driver for resolving the compiling error of redefinition.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-01-28 17:12:37 +01:00
David Wu
77c4261130 rockchip: pinctrl: rv1108: Move the iomux definitions into pinctrl-driver
If we include both the rk3288_grf.h and rv1108_grf.h, it will cause the
conflicts of redefinition. Clean the iomux definitions at grf_rv1108.h,
and move them into pinctrl-driver.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-01-28 17:12:36 +01:00
David Wu
0788a31e03 rockchip: grf_rv1108.h: Fix the grf offsets
The last 4 grf registers offset of rv1108 are wrong, fix them
for correct usage.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-01-28 17:12:36 +01:00
Tom Rini
e38c66edae Merge git://git.denx.de/u-boot-usb 2018-01-11 11:18:29 -05:00
Eddie Cai
bf2b72bef1 usb: rockchip: add the rockusb gadget
this patch implement rockusb protocol on the device side. this is based on
USB download gadget infrastructure. the rockusb function implements the rd,
wl, rid commands. it can work with rkdeveloptool

Signed-off-by: Eddie Cai <eddie.cai.linux@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-10 11:11:05 +01:00
Elaine Zhang
538f67c332 rockchip: clk: bind reset driver
Bind rockchip reset to clock-controller with rockchip_reset_bind().

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-01-09 11:13:32 +01:00
Kever Yang
270288544e rockchip: update boot0 hook
Rockchip SoCs only need boot0 hook at SPL, and the U-Boot proper do not
need it.

The very beginning of U-Boot proper is different between armv7 and armv8:
armv7 start with ARM_VECTORS while armv8 start with 'b reset'.

Here is the map of very beginning for all cases:
armv7 SPL: TAG(overwrite 'b 1f')+'b reset' + ARM_VECTORS
armv7 U-Boot: ARM_VECTORS
armv8 SPL: TAG(overwrite 'b 1f')+'b reset' + Reserved_iram(rk3399)
armv8 U-Boot: 'b reset'

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-12-18 16:56:05 +01:00
Philipp Tomsich
4fc495e9e2 rockchip: clk: rk3128: fix DCLK_VOP_DIV_CON_MASK
The DCLK_VOP_DIV_CON_MASK should cover only bits 8 through 15.
Fix this to remove an "integer-overflow on shifted constant" warning.

Fixes: 9246d9e ("rockchip: rk3128: add clock driver")
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-12-02 00:27:42 +01:00
Philipp Tomsich
cd401abcd5 rockchip: clk: rk3128: fix NANDC_PLL_SEL_MASK
The PLL selector field for NANDC is only 2 bits wide.
This fixes an 'int-overflow on shift' warning.

Fixes: 9246d9e ("rockchip: rk3128: add clock driver")
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-12-02 00:27:31 +01:00
Kever Yang
e129c480e4 rockchip: rk3128: add pinctrl driver
Add rk3128 pinctrl driver and grf/iomux structure definition.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-30 22:55:26 +01:00
Kever Yang
9246d9e541 rockchip: rk3128: add clock driver
Add rk3128 clock driver and cru structure definition.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-30 22:55:26 +01:00
Philipp Tomsich
8c2bb589e2 rockchip: pinctrl: rk3399: add support for I2C8
The RK3399 has a total of 9 I2C controllers.  To support these, the
enum in periph.h is extended and the mapping from the IRQ numbers to
the peripheral-ids is extended to ensure that pinctrl requests are
passed through to the function configuring the I2C pins.

For I2C8, the pinctrl is implemented and tested (on a RK3399-Q7) using
communication with the FAN53555 connected on I2C8.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
2017-11-26 00:39:08 +01:00
Andy Yan
b4d23f7643 rockchip: add support for enter to bootrom download mode
Rockchip bootrom will enter download mode if it returns from
spl/tpl with a non-zero value and couldn't find a valid image
in the backup partition.
This patch provide a method to instruct the system to back to
bootrom download mode by checking the BROM_DOWNLOAD_FLAG register.
As the bootrom download function relys on some modules such as
interrupts, so we need to back to bootrom as early as possbile
before the tpl/spl code override the interrupt configurations.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-21 23:57:23 +01:00
Andy Yan
e3067793c3 rockchip: make boot_mode related codes reused across all platforms
setup_boot_mode function use the same logic but different
mode register address across all the rockchip platforms,
so it's better to make this function reused across all the
platforms, and let the mode register address setting from
the config file.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-21 23:57:23 +01:00
Kever Yang
6ba54058ed rockchip: sysreset: merge into one common driver
Use a common driver for all Rockchip SOC instead of one for each SoC.
Use driver_data for reg offset.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-21 23:57:23 +01:00
Philipp Tomsich
b82bd1f8d4 rockchip: back-to-bootrom: allow passing a cmd to the bootrom
The BROM supports forcing it to enter download-mode, if an appropriate
result/cmd-word is returned to it.  There already is a series to
support this in review, so this prepares the (newly C-version) of the
back-to-bootrom code to accept a cmd to passed on to the BROM.

All the existing call-sites are adjusted to match the changed function
signature.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Andy Yan <andy.yan@rock-chips.com>
2017-11-21 23:57:22 +01:00
Philipp Tomsich
ecfd71891a rockchip: back-to-bootrom: replace assembly-implementation with C-code
The back-to-bootrom implementation for Rockchip has always relied on
the stack-pointer being valid on entry, so there was little reason to
have this as an assembly implementation.

This provides a new C-only implementation of save_boot_params and
back_to_bootrom (relying on setjmp/longjmp) and removes the older
assembly-only implementation.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Andy Yan <andy.yan@rock-chips.com>
2017-11-21 23:57:22 +01:00
Philipp Tomsich
b377d22264 rockchip: boot0 hook: support early return for RK3188/RK3066-style BROM
Some Rockchip BROM versions (e.g. the RK3188 and RK3066) first read 1KB data
from NAND into SRAM and executes it. Then, following a return to bootrom, the
BROM loads additional code to SRAM (not overwriting the first block read) and
reenters at the same address as the first time.

To support booting either a TPL (on the RK3066) or SPL (on the RK3188) using
this model of having to count entries, this commit adds code to the boot0
hook to track the number of entries and handle them accordingly.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Signed-off-by: Paweł Jarosz <paweljarosz3691@gmail.com>
Tested-by: Andy Yan <andy.yan@rock-chips.com>
2017-11-21 23:57:22 +01:00
Kever Yang
cee7470cd8 rockchip: boot0: align to 0x20 for armv7 '_start'
The '_start' is using as vector table base address, and will write
to VBAR register, so it needs to be aligned to 0x20 for armv7.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
[Updated to current code base:]
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-21 23:57:21 +01:00