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u-boot/board/zeus/update.c

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ppc4xx: Add initial Zeus (PPC405EP) board support Signed-off-by: Stefan Roese <sr@denx.de>
2007-08-14 12:44:41 +00:00
/*
* (C) Copyright 2007
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
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>
2013-07-08 07:37:19 +00:00
* SPDX-License-Identifier: GPL-2.0+
ppc4xx: Add initial Zeus (PPC405EP) board support Signed-off-by: Stefan Roese <sr@denx.de>
2007-08-14 12:44:41 +00:00
*/
#include <config.h>
#include <common.h>
#include <command.h>
#include <asm/processor.h>
#include <asm/io.h>
ppc4xx: Move gpio.h to ppc4xx-gpio.h since its ppc4xx specific Signed-off-by: Stefan Roese <sr@denx.de>
2010-09-16 12:30:37 +00:00
#include <asm/ppc4xx-gpio.h>
ppc4xx: Add initial Zeus (PPC405EP) board support Signed-off-by: Stefan Roese <sr@denx.de>
2007-08-14 12:44:41 +00:00
#include <i2c.h>
#if defined(CONFIG_ZEUS)
u8 buf_zeus_ce[] = {
/*00 01 02 03 04 05 06 07 */
0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/*08 09 0a 0b 0c 0d 0e 0f */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/*10 11 12 13 14 15 16 17 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/*18 19 1a 1b 1c 1d 1e 1f */
0x00, 0xc0, 0x50, 0x12, 0x72, 0x3e, 0x00, 0x00 };
u8 buf_zeus_pe[] = {
/* CPU_CLOCK_DIV 1 = 00
CPU_PLB_FREQ_DIV 3 = 10
OPB_PLB_FREQ_DIV 2 = 01
EBC_PLB_FREQ_DIV 2 = 00
MAL_PLB_FREQ_DIV 1 = 00
PCI_PLB_FRQ_DIV 3 = 10
PLL_PLLOUTA = IS SET
PLL_OPERATING = IS NOT SET
PLL_FDB_MUL 10 = 1010
PLL_FWD_DIV_A 3 = 101
PLL_FWD_DIV_B 3 = 101
TUNE = 0x2be */
/*00 01 02 03 04 05 06 07 */
0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/*08 09 0a 0b 0c 0d 0e 0f */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/*10 11 12 13 14 15 16 17 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/*18 19 1a 1b 1c 1d 1e 1f */
0x00, 0x60, 0x68, 0x2d, 0x42, 0xbe, 0x00, 0x00 };
static int update_boot_eeprom(void)
{
u32 len = 0x20;
rename CFG_ macros to CONFIG_SYS Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-10-16 13:01:15 +00:00
u8 chip = CONFIG_SYS_I2C_EEPROM_ADDR;
ppc4xx: Add initial Zeus (PPC405EP) board support Signed-off-by: Stefan Roese <sr@denx.de>
2007-08-14 12:44:41 +00:00
u8 *pbuf;
u8 base;
int i;
rename CFG_ macros to CONFIG_SYS Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-10-16 13:01:15 +00:00
if (in_be32((void *)GPIO0_IR) & GPIO_VAL(CONFIG_SYS_GPIO_ZEUS_PE)) {
ppc4xx: Add initial Zeus (PPC405EP) board support Signed-off-by: Stefan Roese <sr@denx.de>
2007-08-14 12:44:41 +00:00
pbuf = buf_zeus_pe;
base = 0x40;
} else {
pbuf = buf_zeus_ce;
base = 0x00;
}
for (i = 0; i < len; i++, base++) {
if (i2c_write(chip, base, 1, &pbuf[i], 1) != 0) {
printf("i2c_write fail\n");
return 1;
}
udelay(11000);
}
return 0;
}
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>
2010-06-28 20:00:46 +00:00
int do_update_boot_eeprom(cmd_tbl_t* cmdtp, int flag, int argc, char * const argv[])
ppc4xx: Add initial Zeus (PPC405EP) board support Signed-off-by: Stefan Roese <sr@denx.de>
2007-08-14 12:44:41 +00:00
{
return update_boot_eeprom();
}
U_BOOT_CMD (
update_boot_eeprom, 1, 1, do_update_boot_eeprom,
Command usage cleanup Remove command name from all command "usage" fields and update common/command.c to display "name - usage" instead of just "usage". Also remove newlines from command usage fields. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2009-01-28 00:03:12 +00:00
"update boot eeprom content",
General help message cleanup Many of the help messages were not really helpful; for example, many commands that take no arguments would not print a correct synopsis line, but "No additional help available." which is not exactly wrong, but not helpful either. Commit ``Make "usage" messages more helpful.'' changed this partially. But it also became clear that lots of "Usage" and "Help" messages (fields "usage" and "help" in struct cmd_tbl_s respective) were actually redundant. This patch cleans this up - for example: Before: => help dtt dtt - Digital Thermometer and Thermostat Usage: dtt - Read temperature from digital thermometer and thermostat. After: => help dtt dtt - Read temperature from Digital Thermometer and Thermostat Usage: dtt Signed-off-by: Wolfgang Denk <wd@denx.de>
2009-05-24 15:06:54 +00:00
""
ppc4xx: Add initial Zeus (PPC405EP) board support Signed-off-by: Stefan Roese <sr@denx.de>
2007-08-14 12:44:41 +00:00
);
#endif
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