The fsl-esdhc driver can be used for the SDHC functionality on MPC83xx,
but it needs some additional definitions.

Add a clock.h file, so we can use the driver for MPC83xx.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Except for one counter example, CONFIG_SYS_LBC_LBCR always has a value
of either 0x00040000 or 0x00000000.

CONFIG_SYS_LBC_MRTPR always has the value 0x20000000.

CONFIG_SYS_LBC_LSDMR_{1,2,4,5} are not set for any mpc83xx board.

CONFIG_SYS_LBC_LSRT is set by one board (to 0x32000000).

To simplify the configuration files, hardcode the setting of these
values for mpc83xx.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

CONFIG_SYS_DDR_SDRAM_BASE is set to the same value as
CONFIG_SYS_SDRAM_BASE on all existing boards. Just use
CONFIG_SYS_SDRAM_BASE instead.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

CONFIG_SYS_DDR_BASE is specific to mpc83xx an is always set to the same
value as CONFIG_SYS_SDRAM_BASE. Just use CONFIG_SYS_SDRAM_BASE instead.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Migrate the CONFIG_LCRR_* settings to Kconfig.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Migrate the SPCR setting to Kconfig.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Migrate the arbiter configuration to Kconfig.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Migrate the system IO configuration setting to Kconfig.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Migrate CONFIG_SYS_IMMR to Kconfig for MPC83xx.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Mirate the HID configuration settings to Kconfig.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

The MPC85xx GPIO driver was converted to handle a broader range of SoCs.

Prepare the MPC83xx code for usage of this driver.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Remove the last instances of the CONFIG_MPC83xx symbol.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Replace the hard-coded CONFIG_SYS_NS16550_CLK value for the FDT fixup
with the previously introduced get_serial_clock function

This will make it possible to activate DM for serial devices on MPC83xx
later on.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

DM serial drivers on PowerPC determine their clock frequency via the
get_serial_clock function. This function is not Implemented yet for
MPC83xx.

This patch Implements the function so that DM serial drivers work on
MPC83xx.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

The MPC8308 has two I2C controllers, but no PCI controller.

Fix the register map layout for this SoC.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Migrate the BR/OR settings to Kconfig. These must be known at compile
time, so cannot be configured via DT.

Configuration of this crucial variable should still be somewhat
comfortable. Hence, make its fields configurable in Kconfig, and
assemble the final value from these.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

The MPC8349EMDS configuration was the basis for the sbc8349, so it also
contains its SDRAM option.

Since
* the SDRAM has to be soldered onto the board,
* the sbc8349 never used the support, and
* the support never worked (see previous patch fixing it),

we can assume that the support on the sbc8349 is an artifact created by
copying the MPC8349EMDS config wholesome.

Hence, instead of creating a separate sbc8349 config that supports
SDRAM, we can remove the SDRAM option for this board.

Should it be needed in the future, it can be copied from the new
MPC8349EMDS_SDRAM board.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Re-format all BR,OR #define lines into single lines. This makes them
harder to read, but accessible to semi-automatic replacement.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

We want to normalize all BR/OR config lines as much as possible.

The TQM834x board uses CONFIG_SYS_OR_TIMING_FLASH in a OR definition,
which we want to remove. But CONFIG_SYS_OR_TIMING_FLASH is also used
outside of the config file.

Replace these usages with the definition of the variable, so we can
remove the variable in the next patch.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

All BR/OR option lines should have the same layout to make them easier
to migrate to Kconfig. This includes using the same option macros
everywhere.

The normalize the lines,
* replace function macros with their results, and
* replace hardcoded hex values with standard macros
Signed-off-by: NMario Six <mario.six@gdsys.cc>

The LBLAW_* values determine the window configuration of the memory
controller. Hence, they must be known at compile time, and cannot be
implemented in the DT mechanism.

Configuration of this crucial variable should still be somewhat
comfortable. Hence, make its fields configurable in Kconfig, and
assemble the final value from these.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

The BATs (block address translation registers) determine the initial
memory window mappings. Hence, they must be known at compile time and
cannot be implemented in the DT mechanism.

Configuration of this crucial variable should still be somewhat
comfortable. Hence, make its fields configurable in Kconfig, and
assemble the final value from these.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Migrate the CONFIG_HIGH_BATS variable to Kconfig.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

The MPC83xx DM timer driver disables arch.pciexp*_clk, and uses
clk_get_rate instead. But the legacy MPC83xx PCIe driver still uses
arch.pciexp*_clk for the clock.

Hence, read the PCIe clock from the registers in the legacy MPC83xx PCIe
driver.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

The HRCW (hardware reset configuration word) is a constant that must be
hard-coded into the boot loader image. So, it must be available at
compile time, and cannot be migrated to the DT mechanism, but has to be
kept in Kconfig.

Configuration of this crucial variable should still be somewhat
comfortable. Hence, make its fields configurable in Kconfig, and
assemble the final value from these.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

MPC83xx uses CONFIG_83XX_CLKIN instead of CONFIG_SYS_CLK_FREQ to set the
system clock. To migrate the architecture, we can replace
CONFIG_83XX_CLKIN with CONFIG_SYS_CLK_FREQ.

To do this
* replace all occurrences of CONFIG_83XX_CLKIN with CONFIG_SYS_CLK_FREQ
* set CONFIG_SYS_CLK_FREQ to the old value of CONFIG_83XX_CLKIN in all
  MPC83xx config files
Signed-off-by: NMario Six <mario.six@gdsys.cc>

CONFIG_SYS_CLK_FREQ is the standard way to set the system clock
frequency. On MPC83xx, CONFIG_83XX_CLKIN is used for this purpose.
Hence, the obvious way is to replace CONFIG_83XX_CLKIN with
CONFIG_SYS_CLK_FREQ.

A few MPC83xx boards use the CONFIG_83XX_CLKIN variable for computing
CONFIG_SYS_NS16550_CLK. This makes it harder to replace
CONFIG_83XX_CLKIN.

But the value of the multiplicator can be read from the SPMR register.

Hence, replace the static calculations with a call to a new get_bus_freq
function, as other architectures do.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

The MPC83xx include files contain some settings of the PCI subsystem.

Migrate these to Kconfig until a proper DM PCI driver exists.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

CONFIG_MPC837XERDB is unused, and TARGET_MPC837XERDB could replace it.

Hence, get rid of CONFIG_MPC837XERDB.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

CONFIG_MPC837XEMDS is unused, and TARGET_MPC837XEMDS could replace it.

Hence, get rid of CONFIG_MPC837XEMDS.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

CONFIG_MPC8315ERDB is unused, and TARGET_MPC8315ERDB could replace it.

Hence, get rid of CONFIG_MPC8315ERDB.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

CONFIG_MPC8313ERDB is unused, and
TARGET_MPC8313ERDB_NAND/TARGET_MPC8313ERDB_NOR Kconfig could replace it.

Hence, get rid of CONFIG_MPC8313ERDB.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Use the proper CONFIG_TARGET_STRIDER Kconfig option to replace the
CONFIG_STRIDER ad-hoc config option.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Use the proper CONFIG_TARGET_HRCON Kconfig option to replace
the CONFIG_HRCON ad-hoc config option.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Use the proper CONFIG_TARGET_MPC8349ITX Kconfig option to replace the
CONFIG_MPC8349ITX ad-hoc config option.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

Use the proper CONFIG_TARGET_MPC832XEMDS Kconfig option to replace the
CONFIG_MPC832XEMDS ad-hoc config option.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

The ve8313 has the option of either configuring the eLBC (enhanced local system bus) such that

* NOR flash is the first memory bank, and NAND flash is the second memory bank, or
* NAND flash is the first memory bank, and NOR flash is the second memory bank,

by using CONFIG_SYS_NOR_{BR,OR}_PRELIM and
CONFIG_SYS_NAND_{BR,OR}_PRELIM for defining
CONFIG_SYS_{BR,OR}{0,1}_PRELIM.

After Kconfig migration, replacing some lines in the defconfig will have
the same effect.

Hence, we will not create distinct ve8313_{NOR,NAND} configs for such a
small change.

Instead, fix the current default (NOR first, NAND second), and unroll
the  CONFIG_SYS_NAND_{BR,OR}_PRELIM options. This will ease the Kconfig
migration
Signed-off-by: NMario Six <mario.six@gdsys.cc>

The mpc8315erdb has the option of either configuring the eLBC (enhanced
local system bus) such that

* NOR flash is the first memory bank, and NAND flash is the second
  memory bank, or
* NAND flash is the first memory bank, and NOR flash is the second
  memory bank,

by using CONFIG_SYS_NOR_{BR,OR}_PRELIM and
CONFIG_SYS_NAND_{BR,OR}_PRELIM for defining
CONFIG_SYS_{BR,OR}{0,1}_PRELIM.

After Kconfig migration, replacing some lines in the defconfig will have
the same effect.

Hence, we will not create distinct ve8313_{NOR,NAND} configs for such a small change.

Instead, fix the current default (NOR first, NAND second), and unroll
the CONFIG_SYS_NAND_{BR,OR}_PRELIM options. This will ease the Kconfig
migration.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

The MPC8349EMDS config file contains config options to enable SDRAM
support. To keep this ability after the Kconfig migration, create a new
MPC8349EMDS_SDRAM board that enables the SDRAM support and remove the
SDRAM support from the original board.
Signed-off-by: NMario Six <mario.six@gdsys.cc>

The LSDMR_* macros are used to configure the system bus on MPC83xx.

A few of the possible LSDMR_* macros were never defined in the
respective include files. This renders the SDRAM support on the
MPC8349EMDS unusable, because it uses these undefined macros.

To make the SDRAM option work, introduce these macros into the proper
config file.
Signed-off-by: NMario Six <mario.six@gdsys.cc>