Commit graph

13 commits

Author SHA1 Message Date
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Shiraz Hashim
bda7f435a2 SPEAr: Enable dcache for fast file transfer
Enable data cache with 1:1 mapping of DDR to enable fast file
transfer over tty which was doing lot of copy.

This feature is enabled only for flashing operation i.e. when
CONFIG_SPEAR_USBTTY is enabled.

This has been tested on SPEAr320, SPEAr600 and SPEAr900 evaluation
boards.

Following figures show an estimate on the performance improvements. The
test setup was a Linux host (not Windows) and involved measurement of
only binary transfer time, through kermit. The flash erase and flash
copy time would be unaffected by these patches.

Another thing is this that the timings remained more or less same across
ARM9 and Cortex based devices, hence reporting only one of the cases.

Before Enhancements
===================

$ time ukermit.small -p /dev/ttyACM0 -f spear320_uImage.img
Downloading file: 100.00% completed(2014080/2014080 bytes)
real    0m41.228s
user    0m0.002s
sys     0m0.064s

After Enhancements
==================

$ time ukermit.large -p /dev/ttyACM0 -f spear320_uImage.img
Downloading file: 100.00% completed(2014080/2014080 bytes)
real    0m5.441s
user    0m0.001s
sys     0m0.001s

Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Amit Virdi <amit.virdi@st.com>
Signed-off-by: Stefan Roese <sr@denx.de>
2012-07-07 14:07:41 +02:00
Amit Virdi
0b7ff3f459 SPEAr: Initialize SNOR in early_board_init_f
flash reading is required earlier than flash_init is called since the env_init
is called before flash_init. This makes the smi_init necessary before env_init
being called.

Signed-off-by: Amit Virdi <amit.virdi@st.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
2012-07-07 14:07:41 +02:00
Vipin KUMAR
8026b1e42f SPEAr: Place ethaddr write and read within CONFIG_CMD_NET
ethaddr can be optionally read from i2c memory. So, chip_config command supports
reading/writing hw mac id into i2c memory. Placing this code within
CONFIG_CMD_NET as this would only be needed when network interface is configured

Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Amit Virdi <amit.virdi@st.com>
Signed-off-by: Stefan Roese <sr@denx.de>
2012-07-07 14:07:40 +02:00
Amit Virdi
70fdbefc6c SPEAr: Eliminate dependency on Xloader table
Xloader table was used primarily to inform u-boot about the DDR size. However,
now the ddr size is calculated at runtime which eliminates any need for the
Xloader table. So removing this unnecessary code.

Signed-off-by: Amit Virdi <amit.virdi@st.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
2012-07-07 14:07:40 +02:00
Amit Virdi
5cca72f8b3 SPEAr: Fix ARM relocation support
While the u-boot code is running from the flash, it is essential that no access
is made to the bss segment. This is due to the fact that .rel.dyn and .bss areas
overlap and former contains information used in relocation. In SPEAr, this was
not taken into consideration. As a result, while the relocation wasn't complete,
dram_init populated an uninitialized global variable resulting in corruption of
.rel.dyn area, which resulted in u-boot crash.

This commit fixes this problem by removing code that accesses bss segment

Signed-off-by: Amit Virdi <amit.virdi@st.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
2012-07-07 14:07:39 +02:00
Shiraz Hashim
a39fcfb24b spear: fix build errors for spear3xx/spear600 platforms
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Vipin Kumar <vipin.kumar@st.com>
2011-08-04 13:50:01 +02:00
Wolfgang Denk
47e26b1bf9 cmd_usage(): simplify return code handling
Lots of code use this construct:

	cmd_usage(cmdtp);
	return 1;

Change cmd_usage() let it return 1 - then we can replace all these
ocurrances by

	return cmd_usage(cmdtp);

This fixes a few places with incorrect return code handling, too.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-07-24 20:43:57 +02:00
Wolfgang Denk
54841ab50c Make sure that argv[] argument pointers are not modified.
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>
2010-07-04 23:55:42 +02:00
Thomas Weber
5647f78d04 mod change 755 => 644 for multiple files
I executed 'find . -name "*.[chS]" -perm 755 -exec chmod 644 {} \;'

Signed-off-by: Thomas Weber <swirl@gmx.li>
Add some more: neither Makefile nor config.mk need execute permissions.
Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-03-21 22:22:53 +01:00
Vipin KUMAR
4bfacad4e7 SPEAr : emi controller initialization for CFI driver support
SPEAr310 and SPEAr320 SoCs contain an EMI controller to interface
Paraller NOR flashes. This patch adds the support for this IP

The standard CFI driver is used to interface with NOR flashes

Signed-off-by: Vipin <vipin.kumar@st.com>
2010-01-23 08:15:50 -06:00
Vipin KUMAR
f92994f0f7 SPEAr : Support for HW mac id read/write from i2c mem
This patch adds the  support to read and write mac id from i2c
memory.
For reading:
	if (env contains ethaddr)
		pick env ethaddr
	else
		pick ethaddr from i2c memory
For writing:
	chip_config ethaddr XX:XX:XX:XX:XX:XX writes the mac id
	in i2c memory

Signed-off-by: Vipin <vipin.kumar@st.com>
2010-01-23 08:15:49 -06:00
Vipin KUMAR
566c9c16fe SPEAr : Support added for SPEAr600 board
SPEAr600 SoC support contains basic spear600 support along with the
usage of following drivers
- serial driver(UART)
- i2c driver
- smi driver
- nand driver(FSMC)
- usbd driver

Signed-off-by: Vipin <vipin.kumar@st.com>
2010-01-23 08:15:49 -06:00