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Split out enter_conf_mode_*()/exit_conf_mode_() functions, we'll soon need

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them. Reduce code duplication a bit by improved 'no dump available' handling.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2785 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Uwe Hermann
2007-09-19 00:48:42 +00:00
parent c73ea4d4fc
commit 25a6c0f18c
5 changed files with 60 additions and 39 deletions
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34
util/superiotool/ite.c
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@@ -211,10 +211,8 @@ void dump_ite(uint16_t port, uint16_t id)
}
}
void probe_idregs_ite(uint16_t port)
void enter_conf_mode_ite(uint16_t port)
{
uint16_t id, chipver;
/* Enable configuration sequence (ITE uses this for newer IT87[012]x)
* IT871[01] uses 0x87, 0x87 -> fintek detection should handle it
* IT8708 uses 0x87, 0x87 -> fintek detection should handle it
@@ -230,6 +228,18 @@ void probe_idregs_ite(uint16_t port)
outb(0x55, port);
else
outb(0xAA, port);
}
void exit_conf_mode_ite(uint16_t port)
{
regwrite(port, 0x02, 0x02);
}
void probe_idregs_ite(uint16_t port)
{
uint16_t id, chipver;
enter_conf_mode_ite(port);
/* Read Chip ID Byte 1. */
id = regval(port, 0x20);
@@ -252,20 +262,8 @@ void probe_idregs_ite(uint16_t port)
printf("Super I/O found at 0x%02x: id=0x%04x, chipver=0x%01x\n",
port, id, chipver);
switch (id) {
case 0x8702:
case 0x8705:
case 0x8708:
case 0x8712:
case 0x8716:
case 0x8718:
case 0x8726:
dump_ite(port, id);
break;
default:
printf("No dump for ID 0x%04x\n", id);
break;
}
regwrite(port, 0x02, 0x02); /* Exit MB PnP mode. */
dump_ite(port, id);
exit_conf_mode_ite(port);
}