soc/qualcomm: Make sc7180 mdss configurations common code

This change makes mdss configuration common for both sc7180 & sc7280
to avoid code duplicacy.

Changes in v2:
- Move soc related mdss changes to soc specific disp.c

BUG=b:182963902,b:216687885
TEST=Validated on qualcomm sc7280 development board.
Monitor name: LQ140M1JW49

Change-Id: Ibc43ab6ee5ced08e34625e1485febd2f4717d6a0
Signed-off-by: Vinod Polimera <quic_vpolimer@quicinc.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64886
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shelley Chen <shchen@google.com>

4 files changed, 109 insertions, 194 deletions

diff --git a/src/soc/qualcomm/sc7180/Makefile.inc b/src/soc/qualcomm/sc7180/Makefile.inc
index c8d7f2f78d..262abfa392 100644
--- a/src/soc/qualcomm/sc7180/Makefile.inc
+++ b/src/soc/qualcomm/sc7180/Makefile.inc
@@ -45,7 +45,8 @@ ramstage-y += ../common/usb/qmpv3_usb_phy.c
 ramstage-$(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT) += display/dsi_phy_pll.c
 ramstage-$(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT) += display/dsi_phy.c
 ramstage-$(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT) += display/dsi.c
-ramstage-$(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT) += display/mdss.c
+ramstage-$(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT) += display/disp.c
+ramstage-$(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT) += ../common/display/mdss.c
 
 ################################################################################
 
diff --git a/src/soc/qualcomm/sc7180/display/disp.c b/src/soc/qualcomm/sc7180/display/disp.c
new file mode 100644
index 0000000000..4ee6bec4ac
--- /dev/null
+++ b/src/soc/qualcomm/sc7180/display/disp.c
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <device/mmio.h>
+#include <soc/display/mdssreg.h>
+
+void mdss_intf_tg_setup(struct edid *edid)
+{
+	uint32_t hsync_period, vsync_period, hsync_start_x, hsync_end_x;
+	uint32_t display_hctl, hsync_ctl, display_vstart, display_vend;
+	uint32_t mdss_version;
+
+	mdss_version = read32(&mdss_hw->hw_version);
+	hsync_period = edid->mode.ha + edid->mode.hbl;
+	vsync_period = edid->mode.va + edid->mode.vbl;
+	hsync_start_x = edid->mode.hbl - edid->mode.hso;
+	hsync_end_x = hsync_period - edid->mode.hso - 1;
+	display_vstart = (edid->mode.vbl - edid->mode.vso) * hsync_period;
+	display_vend = ((vsync_period - edid->mode.vso) * hsync_period) - 1;
+	hsync_ctl = (hsync_period << 16) | edid->mode.hspw;
+	display_hctl = (hsync_end_x << 16) | hsync_start_x;
+
+	write32(&mdp_intf->intf_hsync_ctl, hsync_ctl);
+	write32(&mdp_intf->intf_vysnc_period_f0, vsync_period * hsync_period);
+	write32(&mdp_intf->intf_vysnc_pulse_width_f0, edid->mode.vspw * hsync_period);
+	write32(&mdp_intf->intf_disp_hctl, display_hctl);
+	write32(&mdp_intf->intf_disp_v_start_f0, display_vstart);
+	write32(&mdp_intf->intf_disp_v_end_f0, display_vend);
+	write32(&mdp_intf->intf_underflow_color, 0x00);
+	write32(&mdp_intf->intf_panel_format, 0x2100);
+}
+
+void mdss_ctrl_config(void)
+{
+	/* Select Video Mode Interface */
+	write32(&mdp_ctl->ctl_top, 0x0);
+
+	/* PPB0 to INTF1 */
+	write32(&mdp_ctl->ctl_intf_active, INTF_ACTIVE_1);
+}
diff --git a/src/soc/qualcomm/sc7180/display/mdss.c b/src/soc/qualcomm/sc7180/display/mdss.c
deleted file mode 100644
index 95697603cc..0000000000
--- a/src/soc/qualcomm/sc7180/display/mdss.c
+++ /dev/null
@@ -1,191 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-#include <device/mmio.h>
-#include <console/console.h>
-#include <edid.h>
-#include <soc/display/mdssreg.h>
-
-#define MDSS_MDP_MAX_PREFILL_FETCH 24
-
-static void mdss_source_pipe_config(struct edid *edid)
-{
-	uint32_t img_size, out_size, stride;
-	uint32_t fb_off = 0;
-	uint32_t flip_bits = 0;
-	uint32_t src_xy = 0;
-	uint32_t dst_xy = 0;
-
-	/* write active region size*/
-	img_size = (edid->mode.va << 16) | edid->mode.ha;
-	out_size = img_size;
-	stride = (edid->mode.ha * edid->framebuffer_bits_per_pixel/8);
-
-	if (!fb_off) {	/* left */
-		dst_xy = (edid->mode.vborder << 16) | edid->mode.hborder;
-		src_xy = dst_xy;
-	} else {	/* right */
-		dst_xy = (edid->mode.vborder << 16);
-		src_xy = (edid->mode.vborder << 16) | fb_off;
-	}
-
-	printk(BIOS_INFO, "%s: src=%x fb_off=%x src_xy=%x dst_xy=%x\n",
-		   __func__, out_size, fb_off, src_xy, dst_xy);
-
-	write32(&mdp_sspp->sspp_src_ystride0, stride);
-	write32(&mdp_sspp->sspp_src_size, out_size);
-	write32(&mdp_sspp->sspp_out_size, out_size);
-	write32(&mdp_sspp->sspp_src_xy, src_xy);
-	write32(&mdp_sspp->sspp_out_xy, dst_xy);
-
-	/* Tight Packing 4bpp Alpha 8-bit A R B G */
-	write32(&mdp_sspp->sspp_src_format, 0x000236ff);
-	write32(&mdp_sspp->sspp_src_unpack_pattern, 0x03020001);
-
-	flip_bits |= BIT(31);
-	write32(&mdp_sspp->sspp_sw_pic_ext_c0_req_pixels, out_size);
-	write32(&mdp_sspp->sspp_sw_pic_ext_c1c2_req_pixels, out_size);
-	write32(&mdp_sspp->sspp_sw_pic_ext_c3_req_pixels, out_size);
-	write32(&mdp_sspp->sspp_src_op_mode, flip_bits);
-}
-
-static void mdss_vbif_setup(void)
-{
-	write32(&vbif_rt->vbif_out_axi_amemtype_conf0, 0x33333333);
-	write32(&vbif_rt->vbif_out_axi_amemtype_conf1, 0x00333333);
-}
-
-static void mdss_intf_tg_setup(struct edid *edid)
-{
-	uint32_t hsync_period, vsync_period;
-	uint32_t hsync_start_x, hsync_end_x;
-	uint32_t display_hctl, hsync_ctl, display_vstart, display_vend;
-
-	hsync_period = edid->mode.ha + edid->mode.hbl;
-	vsync_period = edid->mode.va + edid->mode.vbl;
-	hsync_start_x = edid->mode.hbl - edid->mode.hso;
-	hsync_end_x = hsync_period - edid->mode.hso - 1;
-	display_vstart = (edid->mode.vbl - edid->mode.vso) * hsync_period;
-	display_vend = ((vsync_period - edid->mode.vso) * hsync_period) - 1;
-	hsync_ctl = (hsync_period << 16) | edid->mode.hspw;
-	display_hctl = (hsync_end_x << 16) | hsync_start_x;
-
-	write32(&mdp_intf->intf_hsync_ctl, hsync_ctl);
-	write32(&mdp_intf->intf_vysnc_period_f0,
-			vsync_period * hsync_period);
-	write32(&mdp_intf->intf_vysnc_pulse_width_f0,
-			edid->mode.vspw * hsync_period);
-	write32(&mdp_intf->intf_disp_hctl, display_hctl);
-	write32(&mdp_intf->intf_disp_v_start_f0, display_vstart);
-	write32(&mdp_intf->intf_disp_v_end_f0, display_vend);
-	write32(&mdp_intf->intf_underflow_color, 0x00);
-	write32(&mdp_intf->intf_panel_format, 0x2100);
-}
-
-static void mdss_intf_fetch_start_config(struct edid *edid)
-{
-	uint32_t v_total, h_total, fetch_start, vfp_start;
-	uint32_t prefetch_avail, prefetch_needed;
-	uint32_t fetch_enable = BIT(31);
-
-	/*
-	 * MDP programmable fetch is for MDP with rev >= 1.05.
-	 * Programmable fetch is not needed if vertical back porch
-	 * plus vertical pulse width plus extra line for the extra h_total
-	 * added during fetch start is >= 24.
-	 */
-	if ((edid->mode.vbl - edid->mode.vso + 1) >= MDSS_MDP_MAX_PREFILL_FETCH)
-		return;
-
-	/*
-	 * Fetch should always be outside the active lines. If the fetching
-	 * is programmed within active region, hardware behavior is unknown.
-	 */
-	v_total = edid->mode.va + edid->mode.vbl;
-	h_total = edid->mode.ha + edid->mode.hbl;
-	vfp_start = edid->mode.va + edid->mode.vbl - edid->mode.vso;
-	prefetch_avail = v_total - vfp_start;
-	prefetch_needed = MDSS_MDP_MAX_PREFILL_FETCH - edid->mode.vbl + edid->mode.vso;
-
-	/*
-	 * In some cases, vertical front porch is too high. In such cases limit
-	 * the mdp fetch lines  as the last (25 - vbp - vpw) lines of
-	 * vertical front porch.
-	 */
-	if (prefetch_avail > prefetch_needed)
-		prefetch_avail = prefetch_needed;
-
-	fetch_start = (v_total - prefetch_avail) * h_total + h_total + 1;
-	write32(&mdp_intf->intf_prof_fetch_start, fetch_start);
-	write32(&mdp_intf->intf_config, fetch_enable);
-}
-
-static void mdss_layer_mixer_setup(struct edid *edid)
-{
-	uint32_t mdp_rgb_size;
-	uint32_t left_staging_level;
-
-	/* write active region size*/
-	mdp_rgb_size = (edid->mode.va << 16) | edid->mode.ha;
-
-	write32(&mdp_layer_mixer->layer_out_size, mdp_rgb_size);
-	write32(&mdp_layer_mixer->layer_op_mode, 0x0);
-	for (int i = 0; i < 6; i++) {
-		write32(&mdp_layer_mixer->layer_blend[i].layer_blend_op, 0x100);
-		write32(&mdp_layer_mixer->layer_blend[i].layer_blend_const_alpha, 0x00ff0000);
-	}
-
-	/* Enable border fill */
-	left_staging_level = BIT(24);
-	left_staging_level |= BIT(1);
-
-	/* Base layer for layer mixer 0 */
-	write32(&mdp_ctl->ctl_layer0, left_staging_level);
-}
-
-static void mdss_vbif_qos_remapper_setup(void)
-{
-	/*
-	 * VBIF remapper registers are used for translating internal display hardware
-	 * priority level (from 0 to 7) into system fabric priority level.
-	 * These remapper settings are defined for all the clients which corresponds
-	 * to the xin clients connected to SSPP on VBIF.
-	 */
-	write32(&vbif_rt->qos_rp_remap[0].vbif_xinl_qos_rp_remap, 0x00000003);
-	write32(&vbif_rt->qos_rp_remap[1].vbif_xinl_qos_rp_remap, 0x11111113);
-	write32(&vbif_rt->qos_rp_remap[2].vbif_xinl_qos_rp_remap, 0x22222224);
-	write32(&vbif_rt->qos_rp_remap[3].vbif_xinl_qos_rp_remap, 0x33333334);
-	write32(&vbif_rt->qos_rp_remap[4].vbif_xinl_qos_rp_remap, 0x44444445);
-	write32(&vbif_rt->qos_rp_remap[7].vbif_xinl_qos_rp_remap, 0x77777776);
-	write32(&vbif_rt->qos_lvl_remap[0].vbif_xinl_qos_lvl_remap, 0x00000003);
-	write32(&vbif_rt->qos_lvl_remap[1].vbif_xinl_qos_lvl_remap, 0x11111113);
-	write32(&vbif_rt->qos_lvl_remap[2].vbif_xinl_qos_lvl_remap, 0x22222224);
-	write32(&vbif_rt->qos_lvl_remap[3].vbif_xinl_qos_lvl_remap, 0x33333334);
-	write32(&vbif_rt->qos_lvl_remap[4].vbif_xinl_qos_lvl_remap, 0x44444445);
-	write32(&vbif_rt->qos_lvl_remap[5].vbif_xinl_qos_lvl_remap, 0x77777776);
-}
-
-void mdp_dsi_video_config(struct edid *edid)
-{
-	mdss_intf_tg_setup(edid);
-	mdss_intf_fetch_start_config(edid);
-	mdss_vbif_setup();
-	mdss_vbif_qos_remapper_setup();
-	mdss_source_pipe_config(edid);
-	mdss_layer_mixer_setup(edid);
-
-	/* Select Video Mode Interface */
-	write32(&mdp_ctl->ctl_top, 0x0);
-
-	/* PPB0 to INTF1 */
-	write32(&mdp_ctl->ctl_intf_active, BIT(1));
-	write32(&mdp_intf->intf_mux, 0x0F0000);
-}
-
-void mdp_dsi_video_on(void)
-{
-	uint32_t ctl0_reg_val;
-
-	ctl0_reg_val = VIG_0 | LAYER_MIXER_0 | CTL | INTF;
-	write32(&mdp_ctl->ctl_intf_flush, 0x2);
-	write32(&mdp_ctl->ctl_flush, ctl0_reg_val);
-}
diff --git a/src/soc/qualcomm/sc7180/include/soc/display/mdssreg.h b/src/soc/qualcomm/sc7180/include/soc/display/mdssreg.h
index 112cac67fb..87b36a11e8 100644
--- a/src/soc/qualcomm/sc7180/include/soc/display/mdssreg.h
+++ b/src/soc/qualcomm/sc7180/include/soc/display/mdssreg.h
@@ -4,6 +4,9 @@
 #define _SOC_DISPLAY_MDSS_REG_H_
 
 #include <types.h>
+#include <edid.h>
+
+#define INTF_FLUSH	INTF_FLUSH_1
 
 struct dsi_regs {
 	uint32_t hw_version;
@@ -235,7 +238,14 @@ struct mdp_intf_regs {
 		uint32_t intf_active_hctl;
 		uint32_t intf_border_color;
 		uint32_t intf_underflow_color;
-		uint32_t reserved0[17];
+		uint32_t hsync_skew;
+		uint32_t polarity_ctl;
+		uint32_t test_ctl;
+		uint32_t tp_color0;
+		uint32_t tp_color1;
+		uint32_t intf_config2;
+		uint32_t display_data_hctl;
+		uint32_t reserved0[10];
 		uint32_t intf_panel_format;
 		uint32_t reserved1[55];
 		uint32_t intf_prof_fetch_start;
@@ -256,7 +266,9 @@ struct mdp_ctl_regs {
 	uint32_t ctl_start;
 	uint32_t reserved1[53];
 	uint32_t ctl_intf_active;
-	uint32_t reserved2[6];
+	uint32_t ctl_cdm_active;
+	uint32_t ctl_fetch_pipe_active; /* reserved for sc7180 */
+	uint32_t reserved2[4];
 	uint32_t ctl_intf_flush;
 };
 
@@ -308,6 +320,10 @@ check_member(mdp_sspp_regs, sspp_sw_pic_ext_c0_req_pixels, 0x108);
 check_member(mdp_sspp_regs, sspp_sw_pic_ext_c1c2_req_pixels, 0x118);
 check_member(mdp_sspp_regs, sspp_sw_pic_ext_c3_req_pixels, 0x128);
 
+struct mdss_hw_regs {
+	uint32_t hw_version;
+};
+
 struct vbif_rt_regs {
 	uint32_t reserved0[88];
 	uint32_t vbif_out_axi_amemtype_conf0;
@@ -448,9 +464,57 @@ enum {
 	BROADCAST_EN	 = BIT(31),
 };
 
+/* MDP_VP_0_VIG_0_SSPP_SRC_OP_MODE */
+enum {
+	BWC_DEC_EN		= BIT(0),
+	SW_PIX_EXT_OVERRIDE	= BIT(31),
+
+};
+
+/* MDP_INTF_x_INTF_CONFIG */
+enum {
+	INTERLACE_MODE		= BIT(0),
+	REPEAT_PIXEL		= BIT(1),
+	INTERLACE_INIT_SEL	= BIT(2),
+	BORDER_ENABLE		= BIT(3),
+	EDP_PSR_OVERRIDE_EN	= BIT(7),
+	PACK_ALIGN		= BIT(10),
+	DSI_VIDEO_STOP_MODE	= BIT(23),
+	ACTIVE_H_EN		= BIT(29),
+	ACTIVE_V_EN		= BIT(30),
+	PROG_FETCH_START_EN	= BIT(31),
+};
+
+/* MDP_CTL_0_LAYER_0 */
+enum {
+	VIG_0_OUT	= BIT(0),
+	BORDER_OUT	= BIT(24),
+};
+
+/* MDP_CTL_0_FETCH_PIPE_ACTIVE */
+enum {
+	FETCH_PIPE_VIG0_ACTIVE	= BIT(16),
+	FETCH_PIPE_VIG1_ACTIVE	= BIT(17),
+};
+
+/* MDP_CTL_0_INTF_ACTIVE*/
+enum {
+	INTF_ACTIVE_0	= BIT(0),
+	INTF_ACTIVE_1	= BIT(1),
+	INTF_ACTIVE_5	= BIT(5),
+};
+
+/* MDP_CTL_0_INTF_FLUSH */
+enum {
+	INTF_FLUSH_0	= BIT(0),
+	INTF_FLUSH_1	= BIT(1),
+	INTF_FLUSH_5	= BIT(5),
+};
+
 static struct dsi_regs *const dsi0 = (void *)DSI0_CTL_BASE;
 static struct dsi_phy_regs *const dsi0_phy = (void *)DSI0_PHY_BASE;
 static struct dsi_phy_pll_qlink_regs *const phy_pll_qlink = (void *)DSI0_PHY_PLL_QLINK_COM;
+static struct mdss_hw_regs *const mdss_hw = (void *)MDSS_BASE;
 static struct mdp_intf_regs *const mdp_intf = (void *)MDP_1_INTF_BASE;
 static struct mdp_ctl_regs *const mdp_ctl = (void *)MDP_0_CTL_BASE;
 static struct mdp_layer_mixer_regs *const mdp_layer_mixer = (void *)MDP_VP_0_LAYER_MIXER_BASE;
@@ -458,6 +522,8 @@ static struct mdp_sspp_regs *const mdp_sspp = (void *)MDP_VP_0_SSPP_BASE;
 static struct vbif_rt_regs *const vbif_rt = (void *)MDP_VBIF_RT_BASE;
 
 void mdp_dsi_video_config(struct edid *edid);
+void mdss_intf_tg_setup(struct edid *edid);
 void mdp_dsi_video_on(void);
+void mdss_ctrl_config(void);
 
 #endif