From 527410ff7fc5d45fe41523c0ba061113dea22017 Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Tue, 31 Mar 2009 15:25:13 -0700 Subject: 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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/cirrusfb.c | 27 +++++++++------------------ 1 file changed, 9 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c index ffc514d..6603273 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 */ } /******************************************************************* -- cgit v1.1