projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| e7e8823c SG |
1 | /* |
| 2 | * Copyright 2014 Google Inc. | |
| 3 | * | |
| 4 | * SPDX-License-Identifier: GPL-2.0+ | |
| 5 | * | |
| 6 | */ | |
| 7 | ||
| 8 | #include <common.h> | |
| 9 | #include <errno.h> | |
| 10 | #include <fdtdec.h> | |
| 11 | #include <lcd.h> | |
| 12 | #include <asm/gpio.h> | |
| 13 | #include <asm/arch-tegra/clk_rst.h> | |
| 14 | #include <asm/arch/clock.h> | |
| 15 | #include <asm/arch-tegra/dc.h> | |
| 16 | #include <asm/io.h> | |
| 17 | ||
| 18 | DECLARE_GLOBAL_DATA_PTR; | |
| 19 | ||
| 20 | enum { | |
| 21 | /* Maximum LCD size we support */ | |
| 22 | LCD_MAX_WIDTH = 1920, | |
| 23 | LCD_MAX_HEIGHT = 1200, | |
| 24 | LCD_MAX_LOG2_BPP = 4, /* 2^4 = 16 bpp */ | |
| 25 | }; | |
| 26 | ||
| 27 | vidinfo_t panel_info = { | |
| 28 | /* Insert a value here so that we don't end up in the BSS */ | |
| 29 | .vl_col = -1, | |
| 30 | }; | |
| 31 | ||
| 32 | int tegra_lcd_check_next_stage(const void *blob, int wait) | |
| 33 | { | |
| 34 | return 0; | |
| 35 | } | |
| 36 | ||
| 37 | void tegra_lcd_early_init(const void *blob) | |
| 38 | { | |
| 39 | /* | |
| 40 | * Go with the maximum size for now. We will fix this up after | |
| 41 | * relocation. These values are only used for memory alocation. | |
| 42 | */ | |
| 43 | panel_info.vl_col = LCD_MAX_WIDTH; | |
| 44 | panel_info.vl_row = LCD_MAX_HEIGHT; | |
| 45 | panel_info.vl_bpix = LCD_MAX_LOG2_BPP; | |
| 46 | } | |
| 47 | ||
| 48 | static int tegra124_lcd_init(void *lcdbase) | |
| 49 | { | |
| 50 | struct display_timing timing; | |
| 51 | int ret; | |
| 52 | ||
| 53 | clock_set_up_plldp(); | |
| acbf5bbf | 54 | clock_start_periph_pll(PERIPH_ID_HOST1X, CLOCK_ID_PERIPH, 408000000); |
| e7e8823c SG |
55 | |
| 56 | clock_enable(PERIPH_ID_HOST1X); | |
| 57 | clock_enable(PERIPH_ID_DISP1); | |
| 58 | clock_enable(PERIPH_ID_PWM); | |
| 59 | clock_enable(PERIPH_ID_DPAUX); | |
| 60 | clock_enable(PERIPH_ID_SOR0); | |
| e7e8823c SG |
61 | udelay(2); |
| 62 | ||
| 63 | reset_set_enable(PERIPH_ID_HOST1X, 0); | |
| 64 | reset_set_enable(PERIPH_ID_DISP1, 0); | |
| 65 | reset_set_enable(PERIPH_ID_PWM, 0); | |
| 66 | reset_set_enable(PERIPH_ID_DPAUX, 0); | |
| 67 | reset_set_enable(PERIPH_ID_SOR0, 0); | |
| 68 | ||
| 69 | ret = display_init(lcdbase, 1 << LCD_BPP, &timing); | |
| 70 | if (ret) | |
| 71 | return ret; | |
| 72 | ||
| 73 | panel_info.vl_col = roundup(timing.hactive.typ, 16); | |
| 74 | panel_info.vl_row = timing.vactive.typ; | |
| 75 | ||
| 76 | lcd_set_flush_dcache(1); | |
| 77 | ||
| 78 | return 0; | |
| 79 | } | |
| 80 | ||
| 81 | void lcd_ctrl_init(void *lcdbase) | |
| 82 | { | |
| 83 | ulong start; | |
| 84 | int ret; | |
| 85 | ||
| 86 | start = get_timer(0); | |
| 87 | ret = tegra124_lcd_init(lcdbase); | |
| 88 | debug("LCD init took %lu ms\n", get_timer(start)); | |
| 89 | if (ret) | |
| 90 | printf("%s: Error %d\n", __func__, ret); | |
| 91 | } | |
| 92 | ||
| 93 | void lcd_enable(void) | |
| 94 | { | |
| 95 | } |