Rather than only support the pins dedicated as chip selects, utilize the
gpio framework to support any gpio pin.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Use the new portmux framework to handle the details when possible.
Unfortunately, we cannot yet use this in the standalone initialization
logic, so we need to keep around the old portmux writes for now.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Rather than bang MMRs directly, use the new portmux framework to handle
the details.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Scott Wood <scottwood@freescale.com>
Rather than bang MMRs directly, use the new portmux framework to handle
the details. While we're doing this, let boards declare the exact list
of pins they need in case there is one or two they don't actually have
hooked up.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Ben Warren <biggerbadderben@gmail.com>
The common gpio code provides a function for handling the spi boot
workaround logic, so switch over to that rather than bang on the
gpio MMRs directly.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Now that we have a unified gpio layer, the different status led
implementations can be switched to the common gpio led driver.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
When boards define CONFIG_BOARD_SPECIFIC_LED, the common led definitions
are OK for Blackfin boards. So switch the few boards using these over to
the common code.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Now that we have a unified gpio layer, the misc partial gpio commands
can be unified and made complete (support all possible gpios).
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The current pinmux handling has spread throughout Blackfin drivers and
board code and is getting hideous to maintain. So import the gpio and
portmux layer from the Blackfin Linux code. This should spur a serious
of cleanups across the Blackfin tree.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Older on-chip Blackfin bootroms do not create a dummy NMI handler, so set
up one ourselves when anomaly 05000219 applies.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The new common spi framework and spi flash subsystem provides all the same
functionality as the old Blackfin-specific driver, so punt the old one as
it has been sticking around long enough.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The default storage location for bootcount is EVT0. This version uses
one 32bit value and combines the magic/count value in the upper/lower
16bits. If there is demand for more, should be easy to do.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Avoid banging on the trace MMRs when debugging is disabled, avoid calling
the funcs multiple times in a row, disable the trace buffer earlier in the
exception handler to avoid eating more user entries, and dump the buffer
before calling the kgdb hook. This way we maximize useful debugging info
up front rather than needing external tools (like gdb/serial/etc...).
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The hush shell dynamically allocates (and re-allocates) memory for the
argument strings in the "char *argv[]" argument vector passed to
commands. Any code that modifies these pointers will cause serious
corruption of the malloc data structures and crash U-Boot, so make
sure the compiler can check that no such modifications are being done
by changing the code into "char * const argv[]".
This modification is the result of debugging a strange crash caused
after adding a new command, which used the following argument
processing code which has been working perfectly fine in all Unix
systems since version 6 - but not so in U-Boot:
int main (int argc, char **argv)
{
while (--argc > 0 && **++argv == '-') {
/* ====> */ while (*++*argv) {
switch (**argv) {
case 'd':
debug++;
break;
...
default:
usage ();
}
}
}
...
}
The line marked "====>" will corrupt the malloc data structures and
usually cause U-Boot to crash when the next command gets executed by
the shell. With the modification, the compiler will prevent this with
an
error: increment of read-only location '*argv'
N.B.: The code above can be trivially rewritten like this:
while (--argc > 0 && **++argv == '-') {
char *arg = *argv;
while (*++arg) {
switch (*arg) {
...
Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Instead of defining the flags sevaral times in different source files
(which is error prone), move them to a central place in a header file.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Change the return type of the *printf() functions to the standard
"int"; no changes are needed but returning the already available
length count.
This will save a few additional strlen() calls later...
Signed-off-by: Wolfgang Denk <wd@denx.de>
Remove some INFERNO related #ifdef's from common environment code by
fixing the board configuration settings (add CONFIG_ENV_SECT_SIZE).
While we are at it, fix comment which incorrectly talks about 4 KB
environment size, while it's actually 0x4000 = 16 KiB.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Rolf Offermanns <rof@sysgo.de>
Background Info:
Some PPC440/460 boards have caches enabled in the Boot/FLASH TLB (via
init.S) to speed up the boot process. In relocate_code (start.S) the
cache inhibit attribute for this TLB is set to disable cache. This is
needed for the CFI FLASH driver.
This patch now cleans this code up:
- CONFIG_SYS_TLB_FOR_BOOT_FLASH is defined to 0 (default TLB) if not
defined in the top of this file. This way, we can remove an ugly
#ifdef in this code.
- Replace complex "#if defined(CONFIG_440EP) || defined(CONFIG_GR)..."
statement with "#if defined(CONFIG_440)".
- Remove unnecessary cache invalidate calls resulting in faster bootup.
Signed-off-by: Stefan Roese <sr@denx.de>
As described in item #10 of the SDRAM initialization (chapter 22.2.9
of the PPC460EX/EXr/GT users manual), RDSS may need to be adjusted. The
code for this is now factored out and executed for non-SPD based boards
as well.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch makes it possible to overwrite the default auto-calibration
scan window (SDRAM_WRDTR.[WDTR], SDRAM_CLKTR.[CKTR] values) with
board specific values. The parameters of the weak default function are
corrected as well. This way we don't need the casts any more.
This feature will be used by an upcoming PPC460GT board port.
Signed-off-by: Stefan Roese <sr@denx.de>
By not defining CONFIG_SYS_PCI_MASTER_INIT and CONFIG_SYS_PCI_TARGET_INIT,
PCI support (host and adapter) will not be enabled. But it's still
possible to use the U-Boot PCI infrastructure for the PCIe ports.
This configuration option is needed for a new 460GT board, which uses
PCIe but has PCI disabled.
Signed-off-by: Stefan Roese <sr@denx.de>
This patch enables booting with option E on the PPC460EX/EXr/GT.
When booting with Option E, the PLL is in bypass, CPR0_PLLC[ENG]=0.
The Software Boot Configuration Procedure is needed to engage the
PLL and perform a chip reset.
Signed-off-by: Stefan Roese <sr@denx.de>
At the moment, the default SPI flash subsystem is quite terse. Errors and
successes both result in a generic message. So move the useful errors and
useful successes to printf output by default.
While we're here, also convert the messages to use print_size().
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Some old STMicro parts do not support JEDEC ID (0x9f). This patch
uses RES (0xab) to get Electronic ID and translates it to JEDEC ID.
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Acked-by: Mike Frysinger <vapier@gentoo.org>
This patch adds redundant environment for environment in SPI flash.
I took env_flash.c as an example and slightly modified it. Apart
from adapting things to SF, I also slightly changed the decision
logic to use area 2 as a default in case the flags are wrong because
not having a default path worried me.
I did not add a section for CONFIG_ENV_IS_IN_SPI_FLASH in environment.h
because I did not understand if this is desired and/or needed.
So to use the feature, one has to set CONFIG_ENV_OFFSET_REDUND _and_
CONFIG_SYS_REDUNDAND_ENVIRONMENT.
I checked it by powering off my board several times during flash
erase or write, because I do not know if there are other stress
test scenarios.
Signed-off-by: Wolfgang Wegner <w.wegner@astro-kom.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
This avoids a build warning that you see if anyone in the
header chain has included io.h (which is coming shortly). The previous
code redefined readl/writel; this patch renames it to be specific to
ohci. The defines are also moved from ohci-hcd.c to ohci.h.
Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Added function to differentiate between the OMAP3EVM revisions. The
chip-id of the ethernet PHY is being used for this purpose.
Rev A to D : 0x01150000
Rev >= E : 0x92200000
CC: Remy Bohmer <linux@bohmer.net>
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: Sandeep Paulraj <s-paulraj@ti.com>
MUSB PHY on OMAP3EVM Rev >= E uses external Vbus supply to support
500mA of power.We need to program MUSB PHY to use external Vbus
for this purpose.
Adding 'extvbus' member in musb_config structure which should be set
by all the boards where MUSB interface is using external Vbus supply.
Also added ULPI bus control register read/write abstraction for
Blackfin processor as it doesn't have ULPI registers.
CC: Remy Bohmer <linux@bohmer.net>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Changed musb_config initialization for omap3.c, davinci.c
and da8xx.c using name of structure fields. This would cause
the uninitialized field to be null by default and thus would
help in avoiding to init some flags required to be set only
for a few selected platforms.
CC: Remy Bohmer <linux@bohmer.net>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Add USB OHCI support for at91sam9g45ekes/at91sam9m10g45ek boards.
Note that according to errata from Atmel, OHCI is not operational
on the first revision of at91sam9g45 chip. So this patch enables
OHCI support for later revisions.
Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com>
