We have finished Generic Board conversion for ARM and PowerPC, i.e.
all the boards have been converted except OpenRISC, SuperH, SPARC,
which have not supported Generic Board framework yet.

Select SYS_GENERIC_BOARD in arch/Kconfig and delete all the macro
defines in include/configs/*.h.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

We should not init the console this early since it precludes using driver
model for the UART, since it is not set up at the start of board_init_f().
See the README for more information. The debug UART does not have this
restriction. If we want to do early init with the console on it can be done
in spl_board_init().

Move the preloader_console_init() call from board_init_f() to board_init_r().
Signed-off-by: NSimon Glass <sjg@chromium.org>
Tested-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: NMichal Simek <michal.simek@xilinx.com>

This C function should be used to do the early memory layout and init. This
is beyond my powers, so just add a TODO for the maintainer.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Acked-by: NMichal Simek <michal.simek@xilinx.com>

There is quite a bit of assembler code that can be removed if we use the
generic global_data setup. Less arch-specific code makes it easier to add
new features and maintain the start-up code.

Drop the unneeded code and adjust the hooks in board_f.c to cope.
Signed-off-by: NSimon Glass <sjg@chromium.org>

There is quite a bit of assembler code that can be removed if we use the
generic global_data setup. Less arch-specific code makes it easier to add
new features and maintain the start-up code.

Drop the unneeded code and adjust the hooks in board_f.c to cope.

Tested on LS2085ARDB and LS2085AQDS (armv8 SoC).
Tested-by: NYork Sun <yorksun@freescale.com>
Signed-off-by: NSimon Glass <sjg@chromium.org>

As the virtual address and physical address mapping of nios2 with
MMU are different. Add a check of MMU, and fix the mapping.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NMarek Vasut <marex@denx.de>
Reviewed-by: NLey Foon Tan <lftan@altera.com>

As we use device tree to control u-boot now, the generic
board can be removed.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>

Convert dma_alloc_coherent to use memalign.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NMarek Vasut <marex@denx.de>

Convert copy_exception_trampoline() to use dm cpu data.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>

Convert cache flush to use dm cpu data.

The original cache flush functions are written in assembly
and use CONFIG_SYS_{I,D}CACHE_SIZE... macros. It is difficult
to convert to use cache configuration in dm cpu data which is
extracted from device tree.

The cacheflush.c of Linux nios2 arch uses cpuinfo structure,
which is very close to our dm cpu data. So we copy and modify
it to arch/nios2/lib/cache.c to replace the old cache.S.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>

Set default icache and dcache configuration for start.S.

We want to remove the CONFIG_SYS_{I,D}CACHE_SIZE...
configuration macros. As we are just barely starting from
reset, there is no luxury of device tree.

We will set some maximum cache configuration so that it will
work for most configurations. This is used only in this
start.S. The speed penalty is only once here.

After start up, during board initialization, cpu information
will be extracted from device tree. Then cache flush operations
will have correct cache configurations.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NMarek Vasut <marex@denx.de>

Clean up comments style in start.S.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>

Convert ioremap() to use io_region_base in dm cpu global data.

Also remove three unused io functions, which have style issue
and are replaced by macros already.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>

Convert do_reset to use dm cpu data.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Remove asm/psr.h, which is not used.
Also clean up asm/sections.h and unaligned.h.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NMarek Vasut <marex@denx.de>

Convert altera sysid to driver model with misc uclass.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NChin Liang See <clsee@altera.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Convert altera timer to driver model.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NChin Liang See <clsee@altera.com>

Convert nios2 cpu to driver model. The cpu parameters are
extracted from device tree and saved to global data structure.
We will use them to replace the custom_fpga.h .
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Convert altera_pio to driver model.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NChin Liang See <clsee@altera.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

These macros can be used to clear and set multiple bits
in a register using a single call.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NMarek Vasut <marex@denx.de>
Acked-by: NChin Liang See <clsee@altera.com>

Convert altera_jtag_uart to driver model.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NMarek Vasut <marex@denx.de>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Add ioremap() to map physical address to uncached virtual
address. We need this to convert the reg address from the
device tree.

The order of headers inclusion in interrupts.c is changed
because common.h will include board header that contains
IO_REGION_BASE.

In the future, the IO_REGION_BASE should be decided from
the device tree.
tree
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NMarek Vasut <marex@denx.de>
Reviewed-by: NSimon Glass <sjg@chromium.org>

We will need CONFIG_SYS_MALLOC_F_LEN to use serial uclass.
So we shall undefine CONFIG_SYS_GENERIC_GLOBAL_DATA, and
call board_init_f_mem() to allocates early malloc() memory
with size of CONFIG_SYS_MALLOC_F_LEN in board_f.c.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NMarek Vasut <marex@denx.de>

There is a weak version_string[] at common/cmd_version.c .
Remove the one in start.S.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NMarek Vasut <marex@denx.de>

The dly_clks() in start.S is no use after switching to
generic timer. Remove it.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NMarek Vasut <marex@denx.de>

Move the timer code from interrupts.c into timer.c . Eliminate the
installation of timer interrupt handler, which is no longer used.
Signed-off-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>

Zap almost all of the ad-hoc timer code from interrupts.c and
use the code in lib/time.c instead.
Signed-off-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>

This patch adds device tree control of U-Boot to nios2 boards.
The example dts is taken from Linux kernel.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Acked-by: NMarek Vasut <marex@denx.de>

Since commit 44c6e659
"rename _end to __bss_end__" , the _end was removed.
But we need it now for separated device tree control,
ie, CONFIG_OF_SEPARATE .

The _end is used by fdtdec_setup() to find the blob.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NMarek Vasut <marex@denx.de>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Since we don't use gp for small data with option "-G0",
we use gp as global data pointer. The _gp location is
not needed.

The ALIGN(16) was for gp only. It is removed, so that we
can get correct address of dtb in u-boot-dtb.bin image.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Acked-by: NMarek Vasut <marex@denx.de>

As we will use u-boot-dtb.bin, the code relocation range
should be adjusted to accommodate the additional dtb.
It might be overkilled to look into dtb header to find the
dtb size, so we will simply use CONFIG_SYS_MONITOR_LEN.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>

As dtb in u-boot-dtb.bin overlapped the BSS section,
we should delay the clearing of BSS until dtb is relocated
in board_init_f().
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Acked-by: NMarek Vasut <marex@denx.de>

Enable this in the Kconfig so that nios2 boards can use device
tree to configure U-Boot.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Reviewed-by: NSimon Glass <sjg@chromium.org>
Acked-by: NMarek Vasut <marex@denx.de>

Import various DT files for am57xx-beagle-x15 from
Linux Kernel v4.2
Add config file for this board, enable DM, DM_GPIO,
DM_SERIAL and DM_MMC.
Signed-off-by: NMugunthan V N <mugunthanvnm@ti.com>

Import various DT files for am437x-sk-evm from Linux Kernel v4.2
Add config file for this board, enable DM, DM_GPIO, DM_SERIAL
and DM_MMC.
Signed-off-by: NMugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: NLokesh Vutla <lokeshvutla@ti.com>

Import various DT files for am4372, an43xx pinctrl and
am437x-gp-evm from Linux Kernel v4.2
Add config file for this board, enable DM, DM_GPIO, DM_SERIAL
and DM_MMC.
Signed-off-by: NMugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: NLokesh Vutla <lokeshvutla@ti.com>

Existing driver gets the actual omap hammc base address + 0x100
bytes as the first 0x100 bytes is not used by the driver. But
with DM conversion the base address from DT is different, to
accommodate the offset adding res0[0x100] to struct hsmmc.
Signed-off-by: NMugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

Import various DT files for dra7-evm from Linux Kernel v4.2
Add config file for this board, enable DM and DM_GPIO
Signed-off-by: NMugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: NTom Rini <trini@konsulko.com>

Add basic DT support for k2g evm.
Signed-off-by: NLokesh Vutla <lokeshvutla@ti.com>

Add MMC support for k2g
Signed-off-by: NRoger Quadros <rogerq@ti.com>
Signed-off-by: NLokesh Vutla <lokeshvutla@ti.com>
Tested-by: NMugunthan V N <mugunthanvnm@ti.com>