Commit graph

46222 commits

Author SHA1 Message Date
Philipp Tomsich
482cf22333 rockchip: rk3399-puma: add boot-on regulator to override BIOS_DISABLE
The (Qseven) BIOS_DISABLE signal on the RK3399-Q7 (Puma) keeps the
eMMC and SPI in reset initially and we need to write a GPIO to turn
them on before continuing the boot-up.

This adds the DTS entries for the additional regulator and makes
pinctrl and gpio3 available during SPL.  It also adds a hook to the
spl_board_init() to ensure that the regulator gets probed and enabled.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-01 00:33:35 +02:00
Philipp Tomsich
0b5e7aab0e rockchip: puma-rk3399: update board_init()
The original initialisation code for board_init() was largely lifted
from the code on the EVB.  However, the RK3399-Q7 can do with a much
more concise init sequence.

This cleans up the board_init() by updating it to the essentials for
the RK3399-Q7 and getting rid of the accumulated cruft.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-01 00:33:35 +02:00
Philipp Tomsich
775bd78a11 rockchip: dts: rk3399-puma: add 'same-as-spl' to the front of the boot-order
In the general case, we want to continue booting the full U-Boot
(contained in a discoverable FIT image) from the same device the SPL
stage was loaded from.  This prepends the 'same-as-spl' specifier to
our configurable boot-order to make this the default behaviour.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-01 00:33:35 +02:00
Philipp Tomsich
c55addd360 rockchip: spl: rk3399: implement chip-specific board_spl_was_booted_from()
To support the new "same-as-spl" specifier in the boot-order on the
RK3399, this implements the chip-specific mapping from the information
obtainable from the BROM to a OF path name.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-01 00:33:34 +02:00
Philipp Tomsich
80e9f88e67 rockchip: spl: support a 'same-as-spl'-specifier in the spl-boot-order
It is often desirable to configure the spl-boot-order (i.e. the order
that SPL probes devices to find the FIT image containing a full U-Boot)
such that it contains 'the same device the SPL stage was booted from'
early on.  To support this, we introduce the 'same-as-spl' specifier
for the spl-boot-order property.

This commit adds:
 - documentation for the new board_spl_was_booted_from() function that
   individual SoCs/boards should provide, if they can determine where
   the SPL was booted from
 - implements the new board_spl_was_booted_from() stub function
 - adds support for handling the 'same-as-spl' specifier and calling
   into the per-SoC/per-board support code.

This also updates the documentation for the 'u-boot,spl-boot-order'
property.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-01 00:33:34 +02:00
Philipp Tomsich
dbad01cab5 rockchip: spl: add documentation for spl_node_to_boot_device()
In the expectation that the spl-boot-order code will eventually
gain use outside of mach-rockchip: let's add documentation on the
spl_node_to_boot_device() function, which is likely to become a
publicly exported function.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-01 00:33:34 +02:00
Philipp Tomsich
3b4f87735d rockchip: bootrom: add definitions to retrieve BROM boot-source
The Rockchip BROM allows reading where it booted from from SRAM.
This adds the necessary definitions (as received from Kever) for
the location of this information in the RK3399's SRAM and naming
for the constants used.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-01 00:33:34 +02:00
Philipp Tomsich
fb7406469c rockchip: rk3399: make spl_board_init board-specific
The later-stage spl_board_init (as opposed to board_init_f) should set
up board-specific details: these differ between the EVB-RK3399 and the
RK3399-Q7 (Puma).

This moves spl_board_init back into the individual boards and removes
the unneeded functionality from Puma.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-10-01 00:33:34 +02:00
Heinrich Schuchardt
861ff27757 evb-rk3399: avoid redefinition of CONFIG_ENV_OFFSET
CONFIG_ENV_OFFSET is already defined in
include/configs/rockchip-common.h

For CONFIG_ROCKCHIP_BACK_TO_BROM=y we redefine CONFIG_ENV_OFFSET
to an unsuitable value. We were lucky to get a compiler warning.

Remove the incorrect redefinition.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-10-01 00:33:34 +02:00
Kever Yang
4a18729726 rockchip: rk322x: update the sysreg number for boot mode
The boot mode for rk322x is stored in sysreg 0, update it.

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>
2017-10-01 00:33:34 +02:00
Elaine Zhang
f9674f5eec rockchip: dts: rk3328-evb: add i2c1 and rk805 nodes
add i2c1 and rk805 nodes to support rk805 init setting.

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>
2017-10-01 00:33:33 +02:00
Elaine Zhang
dd834e26b2 configs: rk3328: add support for pmic rk8xx and regulator and i2c driver
Add defconfig for rk8xx and regulator and i2c controller.

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>
2017-10-01 00:33:33 +02:00
Elaine Zhang
be93fc2476 rockchip: i2c: rk3328: support i2c for rk3328 SoC
Add compatible to support rk3328 i2c

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>
Acked-by: Heiko Schocher<hs@denx.de>
2017-10-01 00:33:33 +02:00
Philipp Tomsich
fd0a1ba52e rockchip: pinctrl: rk3368: add pinctrl for SDMMC0
Apparently, our earlier assumption that the BROM will always set up
the iomux for SDcard communication does not always hold true: when
booting U-Boot from the on-module (on the RK3368-uQ7) eMMC, the SDcard
pins are not set up and need to be configured by the pinctrl driver to
allow SD card access.

This change implements support for setting up the SDMMC pins in
pinctrl for the RK3368.

Reported-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-01 00:33:33 +02:00
Philipp Tomsich
6696fe5a2f rockchip: board: lion-rk3368: avoid ATF overwriting active SPL stage
The RK3368-uQ7 ATF has been moved back to 0x100000 (1MB from the start
of DRAM) to avoid it overwriting the active SPL stage during FIT image
loading.  This change adapts the .its to match up (again) with our ATF
repository for the RK3368-uQ7.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-01 00:33:33 +02:00
Jagan Teki
5d94ebedcd rk3288: vyasa: Add falcon mode support
Add Falcon mode support in vyasa rk3288 board.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-10-01 00:33:33 +02:00
Jagan Teki
532cb7f5ad rk3288: vyasa: Add TPL support
Since the size of SPL can't be exceeded 0x8000 bytes in RK3288,
it is not possible add new SPL features like Falcon mode or etc.

So add TPL stage so-that adding new features to SPL is possible.
- TPL: DRAM init, clocks
- SPL: MMC, falcon, etc

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-10-01 00:33:33 +02:00
Jagan Teki
a982d5156d armv7: rk3288: Move configure_l2ctlr to common
configure_l2ctlr will be shared between SPL and TPL so
move them into asm/arch/sys_proto.h

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-10-01 00:33:33 +02:00
Jagan Teki
d9a7dcf5b8 armv7: Move L2CTLR read/write to common
L2CTLR read/write functions are common to armv7 so, move
them in to include/asm/armv7.h and use them where ever it need.

Cc: Tom Warren <twarren@nvidia.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[Backed out the change to arch/arm/mach-tegra/cache.c:]
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-10-01 00:33:33 +02:00
Kever Yang
f3f6591ca3 rockchip: rk322x: fix pd_bus hclk/pclk
The pd_bus hclk/pclk source is pd_bus aclk, not the PLL.

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>
2017-10-01 00:33:32 +02:00
Kever Yang
5d62aba4e3 rockchip: mkimage: add support for rk3128 soc
Add support for rk3128 package header in mkimage tool.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-10-01 00:33:32 +02:00
Kever Yang
04e97e48d0 rockchip: rk3036: fix grf macro define
Some of macros definition are not correct, fix them according to TRM.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-10-01 00:33:32 +02:00
Kever Yang
21c7acc7cb rockchip: clk: fix typo in rk322x clock driver
Fix typo RK322X/RK3036 in rk322x clock driver.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-10-01 00:33:32 +02:00
Philipp Tomsich
cbe18f10e6 rockchip: rk3399: spl: convert to using BOOT_DEVICE_BOOTROM
Instead of directly calling into the back-to-bootrom code, the RK3399
common SPL implementation now uses BOOT_DEVICE_BOOTROM to trigger a
transfer back into the bootrom.

With this factored out, the spl_board_init function can not be
customised for each RK3399 board.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-10-01 00:33:32 +02:00
Philipp Tomsich
8d35f3694f rockchip: lion-rk3368: defconfig: remove duplicate CONFIG_ENV_IS_IN_MMC
Remove a duplicate CONFIG_ENV_IS_IN_MMC assignment for the lion-rk3368
defconfig.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-10-01 00:33:32 +02:00
Kever Yang
a27290a6f8 rockchip: rk3188: ram: add support for 16bit row address
RK3188 using the same ddr_conf for both 15 bit and 16 bit row address.

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>
[Fixed compile-error by declaring 'row':]
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-10-01 00:33:32 +02:00
Kever Yang
ffd1cd67da rockchip: dts: rk3229: remove dram channel info
The dram channel info will be auto detect by the driver,
we do not need it.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2017-10-01 00:33:32 +02:00
Kever Yang
0176399b79 rockchip: rk322x: add sdram driver
Add driver for rk322x to support sdram initialize in SPL.

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>
2017-10-01 00:33:32 +02:00
Kever Yang
f0768491db rockchip: rk3328: move sdram driver to driver/ram
Since we have CONFIG_RAM framwork and its driver folder, move the driver
into it.

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>
2017-10-01 00:33:31 +02:00
Kever Yang
c9eb7bca4b rockchip: rk3288: move sdram driver to driver/ram
Since we have CONFIG_RAM framwork and its driver folder, move the driver
into it.

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>
2017-10-01 00:33:31 +02:00
Kever Yang
5b67d7010b rockchip: rk3188: move sdram driver to driver/ram
Since we have CONFIG_RAM framwork and its driver folder, move the driver
into it.

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>
2017-10-01 00:33:31 +02:00
Kever Yang
b5934cf67c rockchip: rk3399: move sdram driver to driver/ram
Since we have CONFIG_RAM framwork and its driver folder, move the driver
into it.

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>
2017-10-01 00:33:31 +02:00
Philipp Tomsich
8e8bcccc18 rockchip: imply ADC and SARADC_ROCKCHIP for Rockchip SOCs
Enable the Rockchip SARADC driver for all Rockchip SoCs.

Note that the SARADC peripheral is available on all SoCs except the
RK3036 and RK3228.  However, as this is a DM-driver, enabling by
default will not cause any function problems (and can always be
changed from defconfig, if size is a concern).

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: David Wu <david.wu@rock-chips.com>
2017-10-01 00:33:31 +02:00
David Wu
3b4cab15ac rockchip: dts: Enable SARADC for rk3399-evb
Enable the SARADC for download key pressed detect.

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>
2017-10-01 00:33:31 +02:00
David Wu
6333a3bad9 rockchip: dts: Enable SARADC for rk3368-sheep
Enable the SARADC for download key pressed detect.

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>
2017-10-01 00:33:31 +02:00
David Wu
0ac1ae65ea rockchip: dts: Enable SARADC for rk3368-px5-evb
Enable the SARADC for download key pressed detect.

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>
2017-10-01 00:33:30 +02:00
David Wu
f957dec682 rockchip: dts: Enable SARADC for rk3328-evb
Enable the SARADC for download key pressed detect.

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>
2017-10-01 00:33:30 +02:00
David Wu
0eaf58bfaa rockchip: dts: Enable SARADC for rk3288-popmetal
Enable the SARADC for download key pressed detect.

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>
2017-10-01 00:33:30 +02:00
David Wu
679276bde6 rockchip: dts: Enable SARADC for rv1108-evb
Enable the SARADC for download key pressed detect.

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>
2017-10-01 00:33:30 +02:00
David Wu
fdc1eccbd1 rockchip: dts: rv1108: Add SARADC node at dtsi level
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>
2017-10-01 00:33:30 +02:00
David Wu
364fc7315a rockchip: clk: Add rk3399 SARADC clock support
The clk_saradc is dividing from the 24M, clk_saradc=24MHz/(saradc_div_con+1).
SARADC integer divider control register is 8-bits width.

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>
2017-10-01 00:33:30 +02:00
David Wu
615514c16d rockchip: clk: Add rk3368 SARADC clock support
The clk_saradc is dividing from the 24M, clk_saradc=24MHz/(saradc_div_con+1).
SARADC integer divider control register is 8-bits width.

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>
2017-10-01 00:33:30 +02:00
David Wu
b375d84135 rockchip: clk: Add rk3328 SARADC clock support
The clk_saradc is dividing from the 24M, clk_saradc=24MHz/(saradc_div_con+1).
SARADC integer divider control register is 10-bits width.

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>
2017-10-01 00:33:30 +02:00
David Wu
ef4cf5ae39 rockchip: clk: Add SARADC clock support for rk3288
The clk_saradc is dividing from the 24M, clk_saradc=24MHz/(saradc_div_con+1).
SARADC integer divider control register is 8-bits width.

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>
2017-10-01 00:33:29 +02:00
David Wu
2e4ce50d1a rockchip: clk: Add rv1108 SARADC clock support
The clk_saradc is dividing from the 24M, clk_saradc=24MHz/(saradc_div_con+1).
SARADC integer divider control register is 10-bits width.

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>
2017-10-01 00:33:29 +02:00
David Wu
ae3ed042ed dm: adc: Add driver for Rockchip SARADC
The ADC can support some channels signal-ended some bits Successive Approximation
Register (SAR) A/D Converter, like 6-channel and 10-bit. It converts the analog
input signal into some bits binary digital codes.

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>
2017-10-01 00:33:29 +02:00
Sam Protsenko
6ca43a58db env: ti: boot: Show boot status information
Add tracing printings to Linux/Android boot commands, so that we can see
what's going on. Helps to trace possible bugs on early stages and
improves the output for user (which is especially useful, because we
have a bunch of boot commands executing one by one).

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-09-29 14:07:58 -04:00
Sam Protsenko
2717c08485 env: ti: boot: Extract command for eMMC Linux boot
Extract commands for booting Linux from eMMC to separate command. It
seems more logical that way, and allows us to run the whole command set
from U-Boot shell with only one command.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-09-29 14:07:58 -04:00
Sam Protsenko
a0b0ff0ae6 arm: dra7xx: Fix Linux boot from eMMC
Right now on OMAP5-based boards we have only one partition defined for
Linux boot, which is rootfs. That doesn't work with bootpart=1:2 (that
is defined in include/environment/ti/boot.h). To fix Linux boot we may
either:

 1. Change bootpart to be 1:1
 2. Or add preceding partition, so that rootfs is actually 1:2

Second choice seems more reasonable, as DFU is already using similar
partition table and can rely on bootpart to be 1:2.

This patch adds "bootloader" partition. So now eMMC layout for Linux
boot looks like this:

offset               content                 size          partition
(KiB)                                        (KiB)
Reviewed-by: Tom Rini <trini@konsulko.com>

=======================================================================

0       +--------------------------------+
        | MBR/GPT header                 |   128           -
128     +--------------------------------+
        | MLO                            |   256           -
384     +--------------------------------+
        | u-boot.img                     |   1792          bootloader
2176    +--------------------------------+
        | //////////// hole //////////// |   256           -
2432    +--------------------------------+
        | U-Boot environment             |   128           -
2560    +--------------------------------+
        | U-Boot environment (redundant) |   128           -
2688    +--------------------------------+
        | rootfs                         |   remaining     rootfs
end     +--------------------------------+

=======================================================================

Guard hole appears because U-Boot environment offset was calculated for
Android partition table, which has two additional partitions in place of
that hole ("environment" and "misc" partitions).

This patch also changes rootfs offset from 2 MiB further to 2688 KiB,
so that there won't be any collisions with U-Boot environment when we
flash rootfs.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
2017-09-29 14:07:58 -04:00
Sam Protsenko
f6d245b8c5 arm: am57xx: Fix Linux boot from eMMC
Right now on OMAP5-based boards we have only one partition defined for
Linux boot, which is rootfs. That doesn't work with bootpart=1:2 (that
is defined in include/environment/ti/boot.h). To fix Linux boot we may
either:

 1. Change bootpart to be 1:1
 2. Or add preceding partition, so that rootfs is actually 1:2

Second choice seems more reasonable, as DFU is already using similar
partition table and can rely on bootpart to be 1:2.

This patch adds "bootloader" partition. So now eMMC layout for Linux
boot looks like this:

offset               content                 size          partition
(KiB)                                        (KiB)
Reviewed-by: Tom Rini <trini@konsulko.com>

=======================================================================

0       +--------------------------------+
        | MBR/GPT header                 |   128           -
128     +--------------------------------+
        | MLO                            |   256           -
384     +--------------------------------+
        | u-boot.img                     |   1792          bootloader
2176    +--------------------------------+
        | //////////// hole //////////// |   256           -
2432    +--------------------------------+
        | U-Boot environment             |   128           -
2560    +--------------------------------+
        | U-Boot environment (redundant) |   128           -
2688    +--------------------------------+
        | rootfs                         |   remaining     rootfs
end     +--------------------------------+

=======================================================================

Guard hole appears because U-Boot environment offset was calculated for
Android partition table, which has two additional partitions in place of
that hole ("environment" and "misc" partitions).

This patch also changes rootfs offset from 2 MiB further to 2688 KiB,
so that there won't be any collisions with U-Boot environment when we
flash rootfs.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
2017-09-29 14:07:57 -04:00