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Fix up the SMSC detection code to probe _both_ old- and new-style

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Super I/Os from SMSC. Otherwise not all of them are detected (and there
could theoretically be _two_ of them in a system, so we should probe
for both types anyway).

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@2812 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Uwe Hermann 2007-09-28 15:02:17 +00:00
parent 7fe8f5da4d
commit 5f45fc234f
1 changed files with 10 additions and 11 deletions
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21
util/superiotool/smsc.c
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@ -129,22 +129,15 @@ static void exit_conf_mode_smsc(uint16_t port)
outb(0xaa, port); outb(0xaa, port);
} }
void probe_idregs_smsc(uint16_t port) static void probe_idregs_smsc_helper(uint16_t port, uint8_t idreg,
uint8_t revreg)
{ {
uint8_t id, rev; uint8_t id, rev;
enter_conf_mode_smsc(port); enter_conf_mode_smsc(port);
/* Check for older SMSC Super I/Os. */ id = regval(port, idreg);
id = regval(port, DEVICE_ID_REG_OLD); rev = regval(port, revreg);
rev = regval(port, DEVICE_REV_REG_OLD);
if (superio_unknown(reg_table, id))
no_superio_found(port);
/* Check for newer SMSC Super I/Os. */
id = regval(port, DEVICE_ID_REG);
rev = regval(port, DEVICE_REV_REG);
if (superio_unknown(reg_table, id)) { if (superio_unknown(reg_table, id)) {
no_superio_found(port); no_superio_found(port);
@ -162,3 +155,9 @@ void probe_idregs_smsc(uint16_t port)
exit_conf_mode_smsc(port); exit_conf_mode_smsc(port);
} }
void probe_idregs_smsc(uint16_t port)
{
probe_idregs_smsc_helper(port, DEVICE_ID_REG, DEVICE_REV_REG);
probe_idregs_smsc_helper(port, DEVICE_ID_REG_OLD, DEVICE_REV_REG_OLD);
}