drivers: ns16550: Implement RX related features

Implement ns16550_getchar() and ns16550_have_rx_data() for RX related
serial operations into ns16550 UART driver.

Signed-off-by: Alvin Chang <alvinga

drivers: ns16550: Implement RX related features

Implement ns16550_getchar() and ns16550_have_rx_data() for RX related
serial operations into ns16550 UART driver.

Signed-off-by: Alvin Chang <alvinga@andestech.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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drivers: ns16550: Implement helper function to get driver info

Implement chip_to_base_and_data() for ns16550 UART driver to get
effective address and private structure.

Signed-off-by: Alvin Chang <

drivers: ns16550: Implement helper function to get driver info

Implement chip_to_base_and_data() for ns16550 UART driver to get
effective address and private structure.

Signed-off-by: Alvin Chang <alvinga@andestech.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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core_mmu: fix phys_to_virt() to check length

phys_to_virt() function without length parameter doesn`t
always have ability to find the correct mapping for
requested physical address. This is because

core_mmu: fix phys_to_virt() to check length

phys_to_virt() function without length parameter doesn`t
always have ability to find the correct mapping for
requested physical address. This is because physical
address can be mapped in the same time in different virtual
regions with different length. So the first found region
which contains the requested physical address possibly
doesn`t have enough mapped data. This is fixed by adding
the length parameter to phys_to_virt() function. Length
parameter can be set to 1 if caller knows that requested
(pa + len) doesn`t cross mapping granule boundary.

core_mmu_get_va() and io_pa_or_va() functions now are
take length parameter too as they based on phys_to_virt()
in case of MMU enabled.

Signed-off-by: Anton Rybakov <a.rybakov@omp.ru>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Tested-by: Etienne Carriere <etienne.carriere@linaro.org> (stm32mp1-157C_DK2)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx6dlsabreauto)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx6dlsabresd)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx6qpsabreauto)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx6sllevk)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx6ulevk)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx6ullevk)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx6ulzevk)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx7dsabresd)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx7ulpevk)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx8mmevk)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx8mnevk)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx8mqevk)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx8mpevk)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx8qmmek)
Tested-by: Clement Faure <clement.faure@nxp.com> (imx-mx8qxpmek)

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drivers: ns16550: Allow customizable serial IO config

Add io_width and reg_shift configurable parameters to struct ns16550_data
in order to support 32 bit register read/write.

Signed-off-by: Sumit

drivers: ns16550: Allow customizable serial IO config

Add io_width and reg_shift configurable parameters to struct ns16550_data
in order to support 32 bit register read/write.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Reviewed-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: rename KEEP_INIT() and KEEP_PAGER()

The KEEP_INIT() and KEEP_PAGER() macros are quite often used in C files
immediately after the definition of a function or a structure without a
blank line i

core: rename KEEP_INIT() and KEEP_PAGER()

The KEEP_INIT() and KEEP_PAGER() macros are quite often used in C files
immediately after the definition of a function or a structure without a
blank line in between. This style mimics what the Linux kernel does for
a similar use cases: EXPORT_SYMBOL().

Unfortunately, the checkpatch.pl tool expects a blank line after
structure and function definitions, except for a few special cases such
as EXPORT_SYMBOL(). As a result we often get unwanted warnings when we
use KEEP_INIT() and KEEP_PAGER(). Among the exceptions are all words
starting with DECLARE_ or DEFINE_, so by renaming our macros we could
avoid the checkpatch warnings.

This commit renames KEEP_INIT() and KEEP_PAGER() to DECLARE_KEEP_INIT()
and DECLARE_KEEP_PAGER(), respectively. The assembler macros are also
renamed for consistency. No functional change is expected.

Signed-off-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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core: upgrade from write32() to io_write32() and friends

Replace use of readX() and writeX() with io_readX() and io_writeX().
The former function are about to be deprecated in favor to the later.

T

core: upgrade from write32() to io_write32() and friends

Replace use of readX() and writeX() with io_readX() and io_writeX().
The former function are about to be deprecated in favor to the later.

This change upgrades core generic code and drivers.
At some place, io_clrbitsX(), io_setbitsX() and io_clrsetbitsX()
replace the writeX(readX() ...) operations when obvious.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

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Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] wa

Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] was used to double check the license matching
code in the Python script. All the licenses detected by scancode are
either detected by spdxify.py, or have no SPDX identifier, or are false
matches.

Link: [1] https://spdx.org/licenses/
Link: [2] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Link: [3] https://github.com/nexB/scancode-toolkit
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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core: fix console drivers against pager

Console operations structures must be kept in the unpaged sections
when pager is enable.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Review

core: fix console drivers against pager

Console operations structures must be kept in the unpaged sections
when pager is enable.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Tested-by: Etienne Carriere <etienne.carriere@linaro.org> (qemu_virt)

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drivers: convert ns16550 driver to use struct serial_chip

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne C

drivers: convert ns16550 driver to use struct serial_chip

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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Add fsl ls1021a platform support.

Added plat-ls, with initial support for fsl ls1021a platform.
Added uart driver (ns16550).

Signed-off-by: Sumit Garg <b49020@freescale.com>
Reviewed-by: Jens Wikla

Add fsl ls1021a platform support.

Added plat-ls, with initial support for fsl ls1021a platform.
Added uart driver (ns16550).

Signed-off-by: Sumit Garg <b49020@freescale.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Pascal Brand <pascal.brand@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>

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