From 3b4c45efa264ab68512eeca0dc5b9d65283dd8bc Mon Sep 17 00:00:00 2001 From: Vinod Polimera Date: Tue, 3 Mar 2020 12:13:26 +0530 Subject: sc7180: Add display hardware pipe line initialization Add sc7180 display hardware pipeline programming support and invoke the display initialization from soc_init. Changes in V1: - added display init required check. - added edid read function using i2c communication. - added sn65dsi86 bridge driver to init bridge. - moved display initialization to mainboard file. Changes in V2: - moved diplay init sequence to mainboard file - moved edid read function to bridge driver. - calculated timing paramters using edid parameters. - removed command mode config code. - moved bridge driver to drivers/ti. - seperated out bridge and soc code with mainboard file as interface. Changes in V3: - add GPIO selection at runtime based on boardid. - add vbif register struct overlay. Changes in V4: - update gpio config for lazor board. Change-Id: I7d5e3f1781c48759553243abeb3d694f76cd008e Signed-off-by: Vinod Polimera Reviewed-on: https://review.coreboot.org/c/coreboot/+/39615 Tested-by: build bot (Jenkins) Reviewed-by: Julius Werner --- src/soc/qualcomm/sc7180/Kconfig | 4 + src/soc/qualcomm/sc7180/Makefile.inc | 1 + src/soc/qualcomm/sc7180/display/mdss.c | 191 +++++++++++++++++++++++++++++++++ 3 files changed, 196 insertions(+) create mode 100644 src/soc/qualcomm/sc7180/display/mdss.c (limited to 'src/soc/qualcomm') diff --git a/src/soc/qualcomm/sc7180/Kconfig b/src/soc/qualcomm/sc7180/Kconfig index 17df0d036f..d543ef5134 100644 --- a/src/soc/qualcomm/sc7180/Kconfig +++ b/src/soc/qualcomm/sc7180/Kconfig @@ -13,6 +13,10 @@ config SOC_QUALCOMM_SC7180 select ARM64_USE_ARCH_TIMER select SOC_QUALCOMM_COMMON select HAVE_UART_SPECIAL + select BOOTBLOCK_CONSOLE + select MAINBOARD_HAS_NATIVE_VGA_INIT + select MAINBOARD_FORCE_NATIVE_VGA_INIT + select HAVE_LINEAR_FRAMEBUFFER if SOC_QUALCOMM_SC7180 diff --git a/src/soc/qualcomm/sc7180/Makefile.inc b/src/soc/qualcomm/sc7180/Makefile.inc index ec6ab6c162..eea38d9766 100644 --- a/src/soc/qualcomm/sc7180/Makefile.inc +++ b/src/soc/qualcomm/sc7180/Makefile.inc @@ -62,6 +62,7 @@ ramstage-$(CONFIG_DRIVERS_UART) += qupv3_uart.c ramstage-$(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 ################################################################################ diff --git a/src/soc/qualcomm/sc7180/display/mdss.c b/src/soc/qualcomm/sc7180/display/mdss.c new file mode 100644 index 0000000000..2d6bf6fcd3 --- /dev/null +++ b/src/soc/qualcomm/sc7180/display/mdss.c @@ -0,0 +1,191 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include +#include +#include +#include + +#define MDSS_MDP_MAX_PREFILL_FETCH 25 + +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 puls width is >= 25. + */ + if ((edid->mode.vbl - edid->mode.vso) >= 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); +} -- cgit v1.2.3