OMAP3: Add DSS driver for OMAP3

* Supports dynamic panel configuration
* Supports dynamic tv standard selection
* Adds support for DSS register access through generic APIs
* Incorporated DSS register access using structures.
* DSS makefile update

Previous discussions are here:
http://www.mail-archive.com/u-boot@lists.denx.de/msg27150.html

Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

2 files changed, 133 insertions, 0 deletions

diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 086dc05..226684ad 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -41,6 +41,8 @@ COBJS-$(CONFIG_SED156X) += sed156x.o
 COBJS-$(CONFIG_VIDEO_SM501) += sm501.o
 COBJS-$(CONFIG_VIDEO_SMI_LYNXEM) += smiLynxEM.o videomodes.o
 COBJS-$(CONFIG_VIDEO_VCXK) += bus_vcxk.o
+COBJS-$(CONFIG_VIDEO_OMAP3) += omap3_dss.o
+COBJS-y += videomodes.o
 
 COBJS	:= $(COBJS-y)
 SRCS	:= $(COBJS:.o=.c)
diff --git a/drivers/video/omap3_dss.c b/drivers/video/omap3_dss.c
new file mode 100644
index 0000000..b322cc3
--- /dev/null
+++ b/drivers/video/omap3_dss.c
@@ -0,0 +1,131 @@
+/*
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ * Syed Mohammed Khasim <khasim@ti.com>
+ *
+ * Referred to Linux Kernel DSS driver files for OMAP3 by
+ * Tomi Valkeinen from drivers/video/omap2/dss/
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation's version 2 and any
+ * later version the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/dss.h>
+
+/*
+ * Configure VENC for a given Mode (NTSC / PAL)
+ */
+void omap3_dss_venc_config(const struct venc_regs *venc_cfg,
+				u32 height, u32 width)
+{
+	struct venc_regs *venc = (struct venc_regs *) OMAP3_VENC_BASE;
+	struct dss_regs *dss = (struct dss_regs *) OMAP3_DSS_BASE;
+	struct dispc_regs *dispc = (struct dispc_regs *) OMAP3_DISPC_BASE;
+
+	writel(venc_cfg->status, &venc->status);
+	writel(venc_cfg->f_control, &venc->f_control);
+	writel(venc_cfg->vidout_ctrl, &venc->vidout_ctrl);
+	writel(venc_cfg->sync_ctrl, &venc->sync_ctrl);
+	writel(venc_cfg->llen, &venc->llen);
+	writel(venc_cfg->flens, &venc->flens);
+	writel(venc_cfg->hfltr_ctrl, &venc->hfltr_ctrl);
+	writel(venc_cfg->cc_carr_wss_carr, &venc->cc_carr_wss_carr);
+	writel(venc_cfg->c_phase, &venc->c_phase);
+	writel(venc_cfg->gain_u, &venc->gain_u);
+	writel(venc_cfg->gain_v, &venc->gain_v);
+	writel(venc_cfg->gain_y, &venc->gain_y);
+	writel(venc_cfg->black_level, &venc->black_level);
+	writel(venc_cfg->blank_level, &venc->blank_level);
+	writel(venc_cfg->x_color, &venc->x_color);
+	writel(venc_cfg->m_control, &venc->m_control);
+	writel(venc_cfg->bstamp_wss_data, &venc->bstamp_wss_data);
+	writel(venc_cfg->s_carr, &venc->s_carr);
+	writel(venc_cfg->line21, &venc->line21);
+	writel(venc_cfg->ln_sel, &venc->ln_sel);
+	writel(venc_cfg->l21__wc_ctl, &venc->l21__wc_ctl);
+	writel(venc_cfg->htrigger_vtrigger, &venc->htrigger_vtrigger);
+	writel(venc_cfg->savid__eavid, &venc->savid__eavid);
+	writel(venc_cfg->flen__fal, &venc->flen__fal);
+	writel(venc_cfg->lal__phase_reset, &venc->lal__phase_reset);
+	writel(venc_cfg->hs_int_start_stop_x,
+				&venc->hs_int_start_stop_x);
+	writel(venc_cfg->hs_ext_start_stop_x,
+				&venc->hs_ext_start_stop_x);
+	writel(venc_cfg->vs_int_start_x, &venc->vs_int_start_x);
+	writel(venc_cfg->vs_int_stop_x__vs_int_start_y,
+			&venc->vs_int_stop_x__vs_int_start_y);
+	writel(venc_cfg->vs_int_stop_y__vs_ext_start_x,
+			&venc->vs_int_stop_y__vs_ext_start_x);
+	writel(venc_cfg->vs_ext_stop_x__vs_ext_start_y,
+			&venc->vs_ext_stop_x__vs_ext_start_y);
+	writel(venc_cfg->vs_ext_stop_y, &venc->vs_ext_stop_y);
+	writel(venc_cfg->avid_start_stop_x, &venc->avid_start_stop_x);
+	writel(venc_cfg->avid_start_stop_y, &venc->avid_start_stop_y);
+	writel(venc_cfg->fid_int_start_x__fid_int_start_y,
+				&venc->fid_int_start_x__fid_int_start_y);
+	writel(venc_cfg->fid_int_offset_y__fid_ext_start_x,
+				&venc->fid_int_offset_y__fid_ext_start_x);
+	writel(venc_cfg->fid_ext_start_y__fid_ext_offset_y,
+				&venc->fid_ext_start_y__fid_ext_offset_y);
+	writel(venc_cfg->tvdetgp_int_start_stop_x,
+				&venc->tvdetgp_int_start_stop_x);
+	writel(venc_cfg->tvdetgp_int_start_stop_y,
+				&venc->tvdetgp_int_start_stop_y);
+	writel(venc_cfg->gen_ctrl, &venc->gen_ctrl);
+	writel(venc_cfg->output_control, &venc->output_control);
+	writel(venc_cfg->dac_b__dac_c, &venc->dac_b__dac_c);
+
+	/* Configure DSS for VENC Settings */
+	writel(VENC_DSS_CONFIG, &dss->control);
+
+	/* Configure height and width for Digital out */
+	writel(((height << DIG_LPP_SHIFT) | width), &dispc->size_dig);
+}
+
+/*
+ * Configure Panel Specific Parameters
+ */
+void omap3_dss_panel_config(const struct panel_config *panel_cfg)
+{
+	struct dispc_regs *dispc = (struct dispc_regs *) OMAP3_DISPC_BASE;
+
+	writel(panel_cfg->timing_h, &dispc->timing_h);
+	writel(panel_cfg->timing_v, &dispc->timing_v);
+	writel(panel_cfg->pol_freq, &dispc->pol_freq);
+	writel(panel_cfg->divisor, &dispc->divisor);
+	writel(panel_cfg->lcd_size, &dispc->size_lcd);
+	writel((panel_cfg->load_mode << FRAME_MODE_SHIFT), &dispc->config);
+	writel(((panel_cfg->panel_type << TFTSTN_SHIFT) |
+		(panel_cfg->data_lines << DATALINES_SHIFT)), &dispc->control);
+	writel(panel_cfg->panel_color, &dispc->default_color0);
+}
+
+/*
+ * Enable LCD and DIGITAL OUT in DSS
+ */
+void omap3_dss_enable(void)
+{
+	struct dispc_regs *dispc = (struct dispc_regs *) OMAP3_DISPC_BASE;
+	u32 l = 0;
+
+	l = readl(&dispc->control);
+	l |= DISPC_ENABLE;
+	writel(l, &dispc->control);
+}