diff options
Diffstat (limited to 'src/soc/nvidia/tegra124/display.c')
| -rw-r--r-- | src/soc/nvidia/tegra124/display.c | 178 |
1 files changed, 122 insertions, 56 deletions
diff --git a/src/soc/nvidia/tegra124/display.c b/src/soc/nvidia/tegra124/display.c index b7d3d7f736..f0203ad33a 100644 --- a/src/soc/nvidia/tegra124/display.c +++ b/src/soc/nvidia/tegra124/display.c @@ -30,13 +30,30 @@ #include <cpu/cpu.h> #include <boot/tables.h> #include <cbmem.h> +#include <edid.h> #include <soc/clock.h> #include <soc/nvidia/tegra/dc.h> -#include "clk_rst.h" #include "chip.h" #include <soc/display.h> -static struct clk_rst_ctlr *clk_rst = (void *)TEGRA_CLK_RST_BASE; +int dump = 0; +unsigned long READL(void * p); +void WRITEL(unsigned long value, void * p); +unsigned long READL(void * p) +{ + unsigned long value = readl(p); + if (dump) + printk(BIOS_SPEW, "readl %p %08lx\n", p, value); + return value; +} + + +void WRITEL(unsigned long value, void * p) +{ + if (dump) + printk(BIOS_SPEW, "writel %p %08lx\n", p, value); + writel(value, p); +} static const u32 rgb_enb_tab[PIN_REG_COUNT] = { 0x00000000, @@ -76,25 +93,25 @@ static int update_display_mode(struct dc_disp_reg *disp, u32 rate; u32 div; - writel(0x0, &disp->disp_timing_opt); + WRITEL(0x0, &disp->disp_timing_opt); - writel(config->vref_to_sync << 16 | config->href_to_sync, + WRITEL(config->vref_to_sync << 16 | config->href_to_sync, &disp->ref_to_sync); - writel(config->vsync_width << 16 | config->hsync_width, &disp->sync_width); - writel(config->vback_porch << 16 | config->hback_porch, &disp->back_porch); - writel(config->vfront_porch << 16 | config->hfront_porch, + WRITEL(config->vsync_width << 16 | config->hsync_width, &disp->sync_width); + WRITEL(config->vback_porch << 16 | config->hback_porch, &disp->back_porch); + WRITEL(config->vfront_porch << 16 | config->hfront_porch, &disp->front_porch); - writel(config->xres | (config->yres << 16), &disp->disp_active); + WRITEL(config->xres | (config->yres << 16), &disp->disp_active); val = DE_SELECT_ACTIVE << DE_SELECT_SHIFT; val |= DE_CONTROL_NORMAL << DE_CONTROL_SHIFT; - writel(val, &disp->data_enable_opt); + WRITEL(val, &disp->data_enable_opt); val = DATA_FORMAT_DF1P1C << DATA_FORMAT_SHIFT; val |= DATA_ALIGNMENT_MSB << DATA_ALIGNMENT_SHIFT; val |= DATA_ORDER_RED_BLUE << DATA_ORDER_SHIFT; - writel(val, &disp->disp_interface_ctrl); + WRITEL(val, &disp->disp_interface_ctrl); /* * The pixel clock divider is in 7.1 format (where the bottom bit @@ -107,11 +124,11 @@ static int update_display_mode(struct dc_disp_reg *disp, div = ((rate * 2 + config->pixel_clock / 2) / config->pixel_clock) - 2; printk(BIOS_SPEW, "Display clock %d, divider %d\n", rate, div); - writel(0x00010001, &disp->shift_clk_opt); + WRITEL(0x00010001, &disp->shift_clk_opt); val = PIXEL_CLK_DIVIDER_PCD1 << PIXEL_CLK_DIVIDER_SHIFT; val |= div << SHIFT_CLK_DIVIDER_SHIFT; - writel(val, &disp->disp_clk_ctrl); + WRITEL(val, &disp->disp_clk_ctrl); return 0; } @@ -157,55 +174,55 @@ static void update_window(struct display_controller *dc, u32 h_dda, v_dda; u32 val; - val = readl(&dc->cmd.disp_win_header); + val = READL(&dc->cmd.disp_win_header); val |= WINDOW_A_SELECT; - writel(val, &dc->cmd.disp_win_header); + WRITEL(val, &dc->cmd.disp_win_header); - writel(win->fmt, &dc->win.color_depth); + WRITEL(win->fmt, &dc->win.color_depth); clrsetbits_le32(&dc->win.byte_swap, BYTE_SWAP_MASK, BYTE_SWAP_NOSWAP << BYTE_SWAP_SHIFT); val = win->out_x << H_POSITION_SHIFT; val |= win->out_y << V_POSITION_SHIFT; - writel(val, &dc->win.pos); + WRITEL(val, &dc->win.pos); val = win->out_w << H_SIZE_SHIFT; val |= win->out_h << V_SIZE_SHIFT; - writel(val, &dc->win.size); + WRITEL(val, &dc->win.size); val = (win->w * win->bpp / 8) << H_PRESCALED_SIZE_SHIFT; val |= win->h << V_PRESCALED_SIZE_SHIFT; - writel(val, &dc->win.prescaled_size); + WRITEL(val, &dc->win.prescaled_size); - writel(0, &dc->win.h_initial_dda); - writel(0, &dc->win.v_initial_dda); + WRITEL(0, &dc->win.h_initial_dda); + WRITEL(0, &dc->win.v_initial_dda); h_dda = (win->w * 0x1000) / MAX(win->out_w - 1, 1); v_dda = (win->h * 0x1000) / MAX(win->out_h - 1, 1); val = h_dda << H_DDA_INC_SHIFT; val |= v_dda << V_DDA_INC_SHIFT; - writel(val, &dc->win.dda_increment); + WRITEL(val, &dc->win.dda_increment); - writel(win->stride, &dc->win.line_stride); - writel(0, &dc->win.buf_stride); + WRITEL(win->stride, &dc->win.line_stride); + WRITEL(0, &dc->win.buf_stride); val = WIN_ENABLE; if (win->bpp < 24) val |= COLOR_EXPAND; - writel(val, &dc->win.win_opt); + WRITEL(val, &dc->win.win_opt); - writel((u32) win->phys_addr, &dc->winbuf.start_addr); - writel(win->x, &dc->winbuf.addr_h_offset); - writel(win->y, &dc->winbuf.addr_v_offset); + WRITEL((u32) win->phys_addr, &dc->winbuf.start_addr); + WRITEL(win->x, &dc->winbuf.addr_h_offset); + WRITEL(win->y, &dc->winbuf.addr_v_offset); - writel(0xff00, &dc->win.blend_nokey); - writel(0xff00, &dc->win.blend_1win); + WRITEL(0xff00, &dc->win.blend_nokey); + WRITEL(0xff00, &dc->win.blend_1win); val = GENERAL_ACT_REQ | WIN_A_ACT_REQ; val |= GENERAL_UPDATE | WIN_A_UPDATE; - writel(val, &dc->cmd.state_ctrl); + WRITEL(val, &dc->cmd.state_ctrl); } /* this is really aimed at the lcd panel. That said, there are two display @@ -222,7 +239,36 @@ void display_startup(device_t dev) /* should probably just make it all MiB ... in future */ u32 framebuffer_size_mb = config->framebuffer_size / MiB; u32 framebuffer_base_mb= config->framebuffer_base / MiB; + /* light it all up */ + /* This one may have been done in romstage but that's ok for now. */ + if (config->panel_vdd_gpio){ + gpio_output(config->panel_vdd_gpio, 1); + printk(BIOS_SPEW,"%s: panel_vdd setting gpio %08x to %d\n", + __func__, config->panel_vdd_gpio, 1); + } + delay(1); + if (config->backlight_vdd_gpio){ + gpio_output(config->backlight_vdd_gpio, 1); + printk(BIOS_SPEW,"%s: backlight vdd setting gpio %08x to %d\n", + __func__, config->backlight_vdd_gpio, 1); + } + delay(1); + if (config->lvds_shutdown_gpio){ + gpio_output(config->lvds_shutdown_gpio, 0); + printk(BIOS_SPEW,"%s: lvds shutdown setting gpio %08x to %d\n", + __func__, config->lvds_shutdown_gpio, 0); + } + if (config->backlight_en_gpio){ + gpio_output(config->backlight_en_gpio, 1); + printk(BIOS_SPEW,"%s: backlight enable setting gpio %08x to %d\n", + __func__, config->backlight_en_gpio, 1); + } + if (config->pwm){ + gpio_output(config->pwm, 1); + printk(BIOS_SPEW,"%s: pwm setting gpio %08x to %d\n", + __func__, config->pwm, 1); + } printk(BIOS_SPEW, "%s: xres %d yres %d framebuffer_bits_per_pixel %d\n", __func__, @@ -252,53 +298,73 @@ void display_startup(device_t dev) * The panel_vdd is done in the romstage, so we need only * light things up here once we're sure it's all working. */ - setbits_le32(&clk_rst->rst_dev_l, CLK_L_DISP1 | CLK_L_HOST1X); - clock_ll_set_source_divisor(&clk_rst->clk_src_host1x, 4, - CLK_DIVIDER(TEGRA_PLLP_KHZ, 144000)); - /* u-boot uses PLLC for DISP1. - * But the u-boot code does not work and we don't set up PLLC anyway. - * PLLP seems quite good enough, so run with that for now. */ - clock_ll_set_source_divisor(&clk_rst->clk_src_disp1, 0 /* 4 */, - CLK_DIVIDER(TEGRA_PLLP_KHZ, 600000)); + /* init dc_a */ + init_dca_regs(); + /* init sor */ + init_sor_regs(); + + /* init dpaux */ + init_dpaux_regs(); + + /* power up perip */ + dp_io_powerup(); - udelay(2); + /* bringup dp */ + dp_bringup(framebuffer_base_mb*MiB); - clrbits_le32(&clk_rst->rst_dev_l, CLK_L_DISP1|CLK_L_HOST1X); + { u16 *cp = (void *)(framebuffer_base_mb*MiB); + for(i = 0; i < 1048576*8; i++) + if (i %(2560/2) < 1280/2) + cp[i] = 0x222; + else + cp[i] = 0x888; + } - writel(0x00000100, &dc->cmd.gen_incr_syncpt_ctrl); - writel(0x0000011a, &dc->cmd.cont_syncpt_vsync); - writel(0x00000000, &dc->cmd.int_type); - writel(0x00000000, &dc->cmd.int_polarity); - writel(0x00000000, &dc->cmd.int_mask); - writel(0x00000000, &dc->cmd.int_enb); + /* tell depthcharge ... + */ + struct edid edid; + edid.x_resolution = 2560; + edid.y_resolution = 1700; + edid.bytes_per_line = 2560 * 2; + edid.framebuffer_bits_per_pixel = 16; + set_vbe_mode_info_valid(&edid, (uintptr_t)(framebuffer_base_mb*MiB)); + + if (0){ +/* do we still need these? */ + WRITEL(0x00000100, &dc->cmd.gen_incr_syncpt_ctrl); + WRITEL(0x0000011a, &dc->cmd.cont_syncpt_vsync); + WRITEL(0x00000000, &dc->cmd.int_type); + WRITEL(0x00000000, &dc->cmd.int_polarity); + WRITEL(0x00000000, &dc->cmd.int_mask); + WRITEL(0x00000000, &dc->cmd.int_enb); val = PW0_ENABLE | PW1_ENABLE | PW2_ENABLE; val |= PW3_ENABLE | PW4_ENABLE | PM0_ENABLE; val |= PM1_ENABLE; - writel(val, &dc->cmd.disp_pow_ctrl); + WRITEL(val, &dc->cmd.disp_pow_ctrl); - val = readl(&dc->cmd.disp_cmd); + val = READL(&dc->cmd.disp_cmd); val |= CTRL_MODE_C_DISPLAY << CTRL_MODE_SHIFT; - writel(val, &dc->cmd.disp_cmd); + WRITEL(val, &dc->cmd.disp_cmd); - writel(0x00000020, &dc->disp.mem_high_pri); - writel(0x00000001, &dc->disp.mem_high_pri_timer); + WRITEL(0x00000020, &dc->disp.mem_high_pri); + WRITEL(0x00000001, &dc->disp.mem_high_pri_timer); for (i = 0; i < PIN_REG_COUNT; i++) { - writel(rgb_enb_tab[i], &dc->com.pin_output_enb[i]); - writel(rgb_polarity_tab[i], &dc->com.pin_output_polarity[i]); - writel(rgb_data_tab[i], &dc->com.pin_output_data[i]); + WRITEL(rgb_enb_tab[i], &dc->com.pin_output_enb[i]); + WRITEL(rgb_polarity_tab[i], &dc->com.pin_output_polarity[i]); + WRITEL(rgb_data_tab[i], &dc->com.pin_output_data[i]); } for (i = 0; i < PIN_OUTPUT_SEL_COUNT; i++) - writel(rgb_sel_tab[i], &dc->com.pin_output_sel[i]); + WRITEL(rgb_sel_tab[i], &dc->com.pin_output_sel[i]); if (config->pixel_clock) update_display_mode(&dc->disp, config); if (!setup_window(&window, config)) update_window(dc, &window, config); - + } } |