This is mainly a backport of the imx6_revision function of
arch/arm/mach-imx/mach-imx6q.c in the linux kernel sources.
Signed-off-by: S. Fricke <sfricke@data-modul.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
By default CONFIG_JZ4750D_DEBUG_LL_UART0 is selected.
This can confuse the Ritmix RZX50 user as the board
has only UART1 connected.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit moves the C debug_ll code from
the MIPS <debug_ll_ns16550.h> header file to
the MIPS <asm/debug_ll_ns16550.h> header file,
so the C code and the asm code can use the same
register address macros.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Set fake DEBUG_LL_UART_DIVISOR to use <asm/debug_ll_ns16550.h>.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Set DEBUG_LL_UART_DIVISOR to use <asm/debug_ll_ns16550.h>.
The JZ4755 uses 24 MHz as the main reference frequency (EXCLK).
The UART controller can work on full EXCLK or on EXCLK/2.
Just now we use EXCLK/2 legacy clock setup made by U-Boot.
So set UART controller base frequency to 12 MHz.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
In devinfo for the card also print:
- capabilities for host and card
- current bus width
- current clock
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Use MMC_CAP_ names instead of MMC_MODE_. This makes it more
clear that these are capabilities of host/card and do not refer
to the current mode. These are in line with the Linux Kernel
except for MMC_CAP_MMC_HIGHSPEED_52MHZ which could be fixed
later.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The NT disk Signature is a unique 32-bit value in the MBR allowing
to identify a MSDOS partitioned disk. The signature can be used to
specify the Linux rootfs.
This patch adds support for the NT disk Signature in the form of a
device parameter which can both be read and written.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds macros for ns16550 port initialisation
and single char output. The macros can be used in
MIPS asm pbl code.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Ingenic JZ4755 SoC (JZ4750D family) has three UARTs.
So we can give to the user choose which one of them
to use for low level debug (debug_ll) output.
Also this commit adapts the only JZ4755 board
(Ritmix RZX50) for using the new debug_ll port
selection.
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
I'm not sure but I guess we don't need defined(__I386__) check.
I kept it for now.
Signed-off-by: Masaki Muranaka <monaka@monami-ya.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
In case he configures with make ARCH=x85 menuconfig,
config SPI will be set to "y". And he will got an error on spi.h.
Signed-off-by: Masaki Muranaka <monaka@monami-ya.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It's a precious information that barebox will boot the kernel
with the internal devicetree, so print it even in non verbose
mode.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We often encounter the situation where slow devices should not be
probed during startup since probing is slow and maybe unnecessary
for unused devices. With MMC we have the 'probe' device parameter,
for ata we have the same, for USB we have the 'usb' command. Overall
this is not very consistent.
With MMC there is the additional problem that the probe parameter
is attached to the logical device when we often have the information
which physical device we want to probe.
This patch adds a 'detect' callback for devices and adds a command
to detect devices and to list the devices which are actually detecable.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Some drivers use blk->ops->read/write. This bypasses the caching block
layer and was never intended like this. The upper API to the block layer
is the cdev layer. This patch adds block_read and block_write functions
and uses them where appropriate.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
block_read and block_write collide with a to-be-introduced
global function, so rename the file operation functions.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
S. Fricke
Antony Pavlov
Sascha Hauer
Masaki Muranaka
Masaki Muranaka