| 57b36632 | 29-Dec-2019 |
Samuel Holland <samuel@sholland.org> |
allwinner: Reserve and map space for the SCP firmware
The SCP firmware is allocated the last 16KiB of SRAM A2. This includes
the SCPI shared memory area, which must be mapped as MT_DEVICE to
prevent
allwinner: Reserve and map space for the SCP firmware
The SCP firmware is allocated the last 16KiB of SRAM A2. This includes
the SCPI shared memory area, which must be mapped as MT_DEVICE to
prevent problems with cache coherency between the AP CPUs and the SCP.
For simplicity, map the whole SCP region as MT_DEVICE.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Ie39eb5ff281b8898a3c1d9748dc08755f528e2f8
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| 0bc752c9 | 21-Oct-2019 |
Samuel Holland <samuel@sholland.org> |
allwinner: Convert AXP803 regulator setup code into a driver
Previously, the A64/H5 and H6 platforms' PMIC setup code was entirely
independent. However, some H6 boards also need early regulator setu
allwinner: Convert AXP803 regulator setup code into a driver
Previously, the A64/H5 and H6 platforms' PMIC setup code was entirely
independent. However, some H6 boards also need early regulator setup.
Most of the register interface and all of the device tree traversal code
can be reused between the AXP803 and AXP805. The main difference is the
hardware bus interface, so that part is left to the platforms. The
remainder is moved into a driver.
I factored out the bits that were obviously specific to the AXP803;
additional changes for compatibility with other PMICs can be made as
needed.
The only functional change is that rsb_init() now checks the PMIC's chip
ID register against the expected value. This was already being done in
the H6 version of the code.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Icdcf9edd6565f78cccc503922405129ac27e08a2
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| 79b85465 | 21-Oct-2019 |
Samuel Holland <samuel@sholland.org> |
allwinner: a64: power: Use fdt_for_each_subnode
This simplifies the code a bit. Verified to produce the same binary.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Ie1ec1ce2ea39c465
allwinner: a64: power: Use fdt_for_each_subnode
This simplifies the code a bit. Verified to produce the same binary.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Ie1ec1ce2ea39c46525840906826c90a8a7eff287
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| 494c8233 | 21-Oct-2019 |
Samuel Holland <samuel@sholland.org> |
allwinner: a64: power: Remove obsolete register check
As of a561e41bf1d2 ("allwinner: power: add enable switches for DCDC1/5")
there are no longer regulators without an enable register provided.
Sin
allwinner: a64: power: Remove obsolete register check
As of a561e41bf1d2 ("allwinner: power: add enable switches for DCDC1/5")
there are no longer regulators without an enable register provided.
Since it seems reasonable that this will continue to be the case, drop
the check.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Icd7ec26fc6450d053e6e6d855fc16229b1d65a39
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| 3bea03e7 | 21-Oct-2019 |
Samuel Holland <samuel@sholland.org> |
allwinner: a64: power: Remove duplicate DT check
should_enable_regulator() is already checked in the regulators subnode
loop before setup_regulator() is called, so there's no need to check it
again
allwinner: a64: power: Remove duplicate DT check
should_enable_regulator() is already checked in the regulators subnode
loop before setup_regulator() is called, so there's no need to check it
again here.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Idb8b8a6e435246f4fb226bc84813449d80a0a977
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| 18fbfefb | 21-Oct-2019 |
Samuel Holland <samuel@sholland.org> |
allwinner: Build PMIC bus drivers only in BL31
These are used by the PMIC setup code, which runs during BL31
initialization, and the PSCI shutdown code, also a part of BL31.
They can't be needed bef
allwinner: Build PMIC bus drivers only in BL31
These are used by the PMIC setup code, which runs during BL31
initialization, and the PSCI shutdown code, also a part of BL31.
They can't be needed before BL31, or it wouldn't be possible to boot.
Allwinner platforms don't generally build anything but BL31 anyway, but
this change improves clarity and consistency with allwinner-common.mk.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: I24f1d9ca8b4256e44badf5218d04d8690082babf
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| df77a954 | 21-Oct-2019 |
Samuel Holland <samuel@sholland.org> |
allwinner: a64: power: Make sunxi_turn_off_soc static
The function is only used in this file, and it doesn't make sense for it
to be used anywhere else.
Signed-off-by: Samuel Holland <samuel@sholla
allwinner: a64: power: Make sunxi_turn_off_soc static
The function is only used in this file, and it doesn't make sense for it
to be used anywhere else.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Iab18f082911edcdbc37ceeaff8c512be68e0cb0f
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| 818e6732 | 20-Oct-2019 |
Samuel Holland <samuel@sholland.org> |
allwinner: Merge duplicate code in sunxi_power_down
The action of last resort isn't going to change between SoCs. This moves
that code back to the PSCI implementation, where it more obviously
matche
allwinner: Merge duplicate code in sunxi_power_down
The action of last resort isn't going to change between SoCs. This moves
that code back to the PSCI implementation, where it more obviously
matches the code in sunxi_system_reset().
The two error messages say essentially the same thing anyway.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: I62ac35fdb5ed78a016e9b18281416f1dcea38a4a
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| 4538c498 | 20-Oct-2019 |
Samuel Holland <samuel@sholland.org> |
allwinner: Clean up PMIC-related error handling
- Check the return value from sunxi_init_platform_r_twi().
- Print the PMIC banner before doing anything that might fail.
- Remove double prefixes in
allwinner: Clean up PMIC-related error handling
- Check the return value from sunxi_init_platform_r_twi().
- Print the PMIC banner before doing anything that might fail.
- Remove double prefixes in error messages.
- Consistently omit the trailing period.
- No need to print the unknown SoC's ID, since we already did that
earlier in bl31_platform_setup().
- On the other hand, do print the ID of the unknown PMIC.
- Try to keep the messages concise, as the large string size in these
files was causing the firmware to spill into the next page.
- Downgrade the banner from NOTICE to INFO. It's purely informational,
and people should be using debug builds on untested hardware anyway.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Ib909408a5fdaebe05470fbce48d245dd0bf040eb
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| c0e109f2 | 20-Oct-2019 |
Samuel Holland <samuel@sholland.org> |
allwinner: Synchronize PMIC enumerations
Ensure that the default (zero) value represents the case where we take
no action. Previously, if a PLAT=sun50i_a64 build was booted on an
unknown SoC ID, it
allwinner: Synchronize PMIC enumerations
Ensure that the default (zero) value represents the case where we take
no action. Previously, if a PLAT=sun50i_a64 build was booted on an
unknown SoC ID, it would be treated as an H5 at shutdown.
This removes some duplicate code and fixes error propagation on H6.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: I4e51d8a43a56eccb0d8088593cb9908e52e782bc
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| eb75518d | 20-Oct-2019 |
Samuel Holland <samuel@sholland.org> |
allwinner: Enable clock before resetting I2C/RSB
The clock must be running for the module to be reset.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Ic8fafc946f3a1a697174b91288e357
allwinner: Enable clock before resetting I2C/RSB
The clock must be running for the module to be reset.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Ic8fafc946f3a1a697174b91288e357ffa033ab9a
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