diff options
Diffstat (limited to 'src/soc/mediatek/mt8173/dsi.c')
-rw-r--r-- | src/soc/mediatek/mt8173/dsi.c | 177 |
1 files changed, 3 insertions, 174 deletions
diff --git a/src/soc/mediatek/mt8173/dsi.c b/src/soc/mediatek/mt8173/dsi.c index 5b96a582b7..e2e843e19d 100644 --- a/src/soc/mediatek/mt8173/dsi.c +++ b/src/soc/mediatek/mt8173/dsi.c @@ -16,12 +16,11 @@ #include <device/mmio.h> #include <console/console.h> #include <delay.h> -#include <soc/addressmap.h> +#include <edid.h> #include <soc/dsi.h> #include <timer.h> -static int mtk_dsi_phy_clk_setting(u32 format, u32 lanes, - const struct edid *edid) +int mtk_dsi_phy_clk_setting(u32 format, u32 lanes, const struct edid *edid) { u32 txdiv0, txdiv1; u64 pcw; @@ -133,182 +132,12 @@ static int mtk_dsi_phy_clk_setting(u32 format, u32 lanes, return mipi_tx_rate; } -static void mtk_dsi_phy_timconfig(u32 data_rate) -{ - u32 timcon0, timcon1, timcon2, timcon3; - u32 cycle_time, ui, lpx; - - ui = 1000 / data_rate + 0x01; - cycle_time = 8000 / data_rate + 0x01; - lpx = 5; - - timcon0 = (8 << 24) | (0xa << 16) | (0x6 << 8) | lpx; - timcon1 = (7 << 24) | (5 * lpx << 16) | ((3 * lpx) / 2) << 8 | - (4 * lpx); - timcon2 = ((DIV_ROUND_UP(0x64, cycle_time) + 0xa) << 24) | - (DIV_ROUND_UP(0x150, cycle_time) << 16); - timcon3 = (2 * lpx) << 16 | - DIV_ROUND_UP(80 + 52 * ui, cycle_time) << 8 | - DIV_ROUND_UP(0x40, cycle_time); - - write32(&dsi0->dsi_phy_timecon0, timcon0); - write32(&dsi0->dsi_phy_timecon1, timcon1); - write32(&dsi0->dsi_phy_timecon2, timcon2); - write32(&dsi0->dsi_phy_timecon3, timcon3); -} - -static void mtk_dsi_reset(void) +void mtk_dsi_reset(void) { setbits_le32(&dsi0->dsi_con_ctrl, 3); clrbits_le32(&dsi0->dsi_con_ctrl, 1); } -static void mtk_dsi_clk_hs_mode_enable(void) -{ - setbits_le32(&dsi0->dsi_phy_lccon, LC_HS_TX_EN); -} - -static void mtk_dsi_clk_hs_mode_disable(void) -{ - clrbits_le32(&dsi0->dsi_phy_lccon, LC_HS_TX_EN); -} - -static void mtk_dsi_set_mode(u32 mode_flags) -{ - u32 tmp_reg1 = 0; - - if (mode_flags & MIPI_DSI_MODE_VIDEO) { - tmp_reg1 = SYNC_PULSE_MODE; - - if (mode_flags & MIPI_DSI_MODE_VIDEO_BURST) - tmp_reg1 = BURST_MODE; - - if (mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE) - tmp_reg1 = SYNC_PULSE_MODE; - } - - write32(&dsi0->dsi_mode_ctrl, tmp_reg1); -} - -static void mtk_dsi_rxtx_control(u32 mode_flags, u32 lanes) -{ - u32 tmp_reg = 0; - - switch (lanes) { - case 1: - tmp_reg = 1 << 2; - break; - case 2: - tmp_reg = 3 << 2; - break; - case 3: - tmp_reg = 7 << 2; - break; - case 4: - default: - tmp_reg = 0xf << 2; - break; - } - - tmp_reg |= (mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) << 6; - tmp_reg |= (mode_flags & MIPI_DSI_MODE_EOT_PACKET) >> 3; - - write32(&dsi0->dsi_txrx_ctrl, tmp_reg); -} - -static void mtk_dsi_config_vdo_timing(u32 mode_flags, u32 format, - const struct edid *edid) -{ - u32 hsync_active_byte; - u32 hbp_byte; - u32 hfp_byte; - u32 vbp_byte; - u32 vfp_byte; - u32 bpp; - u32 packet_fmt; - u32 hactive; - - if (format == MIPI_DSI_FMT_RGB565) - bpp = 2; - else - bpp = 3; - - vbp_byte = edid->mode.vbl - edid->mode.vso - edid->mode.vspw - - edid->mode.vborder; - vfp_byte = edid->mode.vso - edid->mode.vborder; - - write32(&dsi0->dsi_vsa_nl, edid->mode.vspw); - write32(&dsi0->dsi_vbp_nl, vbp_byte); - write32(&dsi0->dsi_vfp_nl, vfp_byte); - write32(&dsi0->dsi_vact_nl, edid->mode.va); - - if (mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE) - hbp_byte = (edid->mode.hbl - edid->mode.hso - edid->mode.hspw - - edid->mode.hborder) * bpp - 10; - else - hbp_byte = (edid->mode.hbl - edid->mode.hso - - edid->mode.hborder) * bpp - 10; - - hsync_active_byte = edid->mode.hspw * bpp - 10; - hfp_byte = (edid->mode.hso - edid->mode.hborder) * bpp - 12; - - write32(&dsi0->dsi_hsa_wc, hsync_active_byte); - write32(&dsi0->dsi_hbp_wc, hbp_byte); - write32(&dsi0->dsi_hfp_wc, hfp_byte); - - switch (format) { - case MIPI_DSI_FMT_RGB888: - packet_fmt = PACKED_PS_24BIT_RGB888; - break; - case MIPI_DSI_FMT_RGB666: - packet_fmt = LOOSELY_PS_18BIT_RGB666; - break; - case MIPI_DSI_FMT_RGB666_PACKED: - packet_fmt = PACKED_PS_18BIT_RGB666; - break; - case MIPI_DSI_FMT_RGB565: - packet_fmt = PACKED_PS_16BIT_RGB565; - break; - default: - packet_fmt = PACKED_PS_24BIT_RGB888; - break; - } - - hactive = edid->mode.ha; - packet_fmt |= (hactive * bpp) & DSI_PS_WC; - - write32(&dsi0->dsi_psctrl, packet_fmt); -} - -static void mtk_dsi_start(void) -{ - write32(&dsi0->dsi_start, 0); - /* Only start master DSI */ - write32(&dsi0->dsi_start, 1); -} - -int mtk_dsi_init(u32 mode_flags, u32 format, u32 lanes, const struct edid *edid) -{ - int data_rate; - - data_rate = mtk_dsi_phy_clk_setting(format, lanes, edid); - - if (data_rate < 0) - return -1; - - mtk_dsi_reset(); - mtk_dsi_phy_timconfig(data_rate); - mtk_dsi_rxtx_control(mode_flags, lanes); - mtk_dsi_clk_hs_mode_disable(); - mtk_dsi_config_vdo_timing(mode_flags, format, edid); - mtk_dsi_set_mode(mode_flags); - mtk_dsi_clk_hs_mode_enable(); - - mtk_dsi_start(); - - return 0; -} - void mtk_dsi_pin_drv_ctrl(void) { struct stopwatch sw; |