To make am33xx_uart0_soft_reset more flexible rename it to
am33xx_uart_soft_reset and pass the UART base to it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Storing the boot information in the image itself and passing a pointer
around between images is cumbersome and doesn't fit well with multiimage
support where the pointer we pass around is already occupied by the
devicetree.
Do the same as U-Boot does and store the boot information at the bottom
of the SRAM public stack.
To maintain the compatibility between new xloaders and older barebox
binaries we still pass the boot information to the next stage via pointer.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
There is a lot of duplicate lowlevel code between the
am33xx boards. Move this code to am33xx_generic and
create structs for sdram settings.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
omap_save_bootinfo derefences the argument passed to barebox without
checking it for validity. This breaks 2nd stage booting where r0
is undefined. The best we can do is to check whether the pointer is
somewhere in SRAM and is word aligned. This at least makes sure that
we do not oops. This introduces SoC specific xxx_save_bootinfo variants
since the SRAM addresses/sizes differ between SoCs.
Additionally fix the prototype for omap_save_bootinfo. It uses r0, so
it must be passed this variable.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds first stage support for PCM051.
Signed-off-by: Shravan kumar <shravan.k@phytec.in>
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Added device register functions and cpu_is_am33xx()
function.
Adapted the i2c-omap driver. AM335x has a lower
clock rate and the timeout of polling the isr function
had to be increased.
Based on a patch from Shravan Kumar <shravan.k@phytec.in>.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Created ARCH for AM33xx boards as second stage bootloader.
This includes:
- Added dmtimer0
- Created basic header files
- Added MMC support for ARCH_AM33XX
- Added reset function
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Some header file cleanup by:
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Sascha Hauer
Jan Luebbe
Teresa Gámez
Shravan kumar