From 527410ff7fc5d45fe41523c0ba061113dea22017 Mon Sep 17 00:00:00 2001
From: Krzysztof Helt <krzysztof.h1@wp.pl>
Date: Tue, 31 Mar 2009 15:25:13 -0700
Subject: [PATCH] cirrusfb: GD5446 fixes
Various fixes to make Cirrus GD5446 chip work.
Another Cirrus chip works with the cirrusfb. The gd5446 seems very
similar to Alpine chips.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
drivers/video/cirrusfb.c | 27 +++++++++------------------
1 file changed, 9 insertions(+), 18 deletions(-)
diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c
index ffc514df2452f..6603273f4ce59 100644
--- a/drivers/video/cirrusfb.c
+++ b/drivers/video/cirrusfb.c
@@ -198,9 +198,11 @@ static const struct cirrusfb_board_info_rec {
.init_sr07 = true,
.init_sr1f = false,
.scrn_start_bit19 = true,
- .sr07 = 0x20,
- .sr07_1bpp = 0x20,
- .sr07_8bpp = 0x21,
+ .sr07 = 0xA0,
+ .sr07_1bpp = 0xA0,
+ .sr07_1bpp_mux = 0xA6,
+ .sr07_8bpp = 0xA1,
+ .sr07_8bpp_mux = 0xA7,
.sr1f = 0
},
[BT_ALPINE] = {
@@ -213,8 +215,8 @@ static const struct cirrusfb_board_info_rec {
.init_sr1f = true,
.scrn_start_bit19 = true,
.sr07 = 0xA0,
- .sr07_1bpp = 0xA1,
- .sr07_1bpp_mux = 0xA7,
+ .sr07_1bpp = 0xA0,
+ .sr07_1bpp_mux = 0xA6,
.sr07_8bpp = 0xA1,
.sr07_8bpp_mux = 0xA7,
.sr1f = 0x1C
@@ -821,7 +823,7 @@ static int cirrusfb_set_par_foo(struct fb_info *info)
/* formula: VClk = (OSC * N) / (D * (1+P)) */
/* Example: VClk = (14.31818 * 91) / (23 * (1+1)) = 28.325 MHz */
- if (cinfo->btype == BT_ALPINE) {
+ if (cinfo->btype == BT_ALPINE || cinfo->btype == BT_PICASSO4) {
/* if freq is close to mclk or mclk/2 select mclk
* as clock source
*/
@@ -1044,9 +1046,6 @@ static int cirrusfb_set_par_foo(struct fb_info *info)
/* ### INCOMPLETE!! */
vga_wseq(regbase, CL_SEQRF, 0xb8);
#endif
-/* vga_wseq(regbase, CL_SEQR1F, 0x1c); */
- break;
-
case BT_ALPINE:
/* We already set SRF and SR1F */
break;
@@ -1106,10 +1105,6 @@ static int cirrusfb_set_par_foo(struct fb_info *info)
break;
case BT_PICASSO4:
- vga_wseq(regbase, CL_SEQR7, 0x27);
-/* vga_wseq(regbase, CL_SEQR1F, 0x1c); */
- break;
-
case BT_ALPINE:
vga_wseq(regbase, CL_SEQR7, 0xa7);
break;
@@ -1177,10 +1172,6 @@ static int cirrusfb_set_par_foo(struct fb_info *info)
break;
case BT_PICASSO4:
- vga_wseq(regbase, CL_SEQR7, 0x25);
-/* vga_wseq(regbase, CL_SEQR1F, 0x1c); */
- break;
-
case BT_ALPINE:
vga_wseq(regbase, CL_SEQR7, 0xa9);
break;
@@ -2678,7 +2669,7 @@ static void cirrusfb_set_blitter(u8 __iomem *regbase,
vga_wgfx(regbase, CL_GR32, 0x0d); /* BLT ROP */
/* and finally: GO! */
- vga_wgfx(regbase, CL_GR31, 0x82); /* BLT Start/status */
+ vga_wgfx(regbase, CL_GR31, 0x02); /* BLT Start/status */
}
/*******************************************************************
--
2.30.2