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sisfb: add RAM type detection for XGI Z9
author
Aaro Koskinen
<aaro.koskinen@iki.fi>
Sun, 13 Feb 2011 22:11:26 +0000
(22:11 +0000)
committer
Paul Mundt
<lethal@linux-sh.org>
Tue, 22 Mar 2011 06:20:33 +0000
(15:20 +0900)
Detect the XGI Z9 RAM type as "documented" by the XGI's xgifb driver.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
drivers/video/sis/sis_main.c
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diff --git
a/drivers/video/sis/sis_main.c
b/drivers/video/sis/sis_main.c
index f0c48e84bcdbcc515be6deecc7a536bd2aef4ba1..de03567883758c2ddbe720f756852e6873852905 100644
(file)
--- a/
drivers/video/sis/sis_main.c
+++ b/
drivers/video/sis/sis_main.c
@@
-4955,7
+4955,13
@@
sisfb_post_xgi_ramtype(struct sis_video_info *ivideo)
v1 = bios[0x1d2];
}
if (!(ramtype & 0x80)) {
- if (ivideo->chip == XGI_20) {
+ if (sisfb_xgi_is21(ivideo)) {
+ SiS_SetRegAND(SISCR, 0xb4, 0xfd); /* GPIO control */
+ SiS_SetRegOR(SISCR, 0x4a, 0x80); /* GPIOH EN */
+ reg = SiS_GetReg(SISCR, 0x48);
+ SiS_SetRegOR(SISCR, 0xb4, 0x02);
+ ramtype = reg & 0x01; /* GPIOH */
+ } else if (ivideo->chip == XGI_20) {
SiS_SetReg(SISCR, 0x97, v1);
reg = SiS_GetReg(SISCR, 0x97);
if (reg & 0x10) {