Ajay Dudani | 232ce81 | 2009-12-02 00:14:11 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2008, Google Inc. |
| 3 | * All rights reserved. |
| 4 | * |
Shashank Mittal | 3704083 | 2010-08-24 15:57:57 -0700 | [diff] [blame^] | 5 | * Copyright (c) 2009-2010, Code Aurora Forum. All rights reserved. |
| 6 | * |
Ajay Dudani | 232ce81 | 2009-12-02 00:14:11 -0800 | [diff] [blame] | 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * * Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * * Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in |
| 14 | * the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 18 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 19 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 20 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 21 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 23 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| 24 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 25 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 26 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 27 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 28 | * SUCH DAMAGE. |
| 29 | */ |
| 30 | |
| 31 | #include <debug.h> |
| 32 | #include <stdlib.h> |
| 33 | #include <reg.h> |
| 34 | #include <platform/iomap.h> |
| 35 | #include <dev/fbcon.h> |
Chandan Uddaraju | 0764485 | 2010-07-14 12:07:11 -0700 | [diff] [blame] | 36 | #include <target/display.h> |
Ajay Dudani | 232ce81 | 2009-12-02 00:14:11 -0800 | [diff] [blame] | 37 | |
Shashank Mittal | 3704083 | 2010-08-24 15:57:57 -0700 | [diff] [blame^] | 38 | #if MDP4 |
| 39 | #define MSM_MDP_BASE1 0xA3F00000 |
| 40 | #define LCDC_BASE 0xC0000 |
| 41 | #else |
Ajay Dudani | 232ce81 | 2009-12-02 00:14:11 -0800 | [diff] [blame] | 42 | #define MSM_MDP_BASE1 0xAA200000 |
Shashank Mittal | 3704083 | 2010-08-24 15:57:57 -0700 | [diff] [blame^] | 43 | #define LCDC_BASE 0xE0000 |
| 44 | #endif |
Ajay Dudani | 232ce81 | 2009-12-02 00:14:11 -0800 | [diff] [blame] | 45 | |
| 46 | #define LCDC_PIXCLK_IN_PS 26 |
| 47 | #define LCDC_FB_PHYS 0x16600000 |
| 48 | #define LCDC_FB_BPP 16 |
| 49 | |
Ajay Dudani | 232ce81 | 2009-12-02 00:14:11 -0800 | [diff] [blame] | 50 | #define BIT(x) (1<<(x)) |
| 51 | #define DMA_DSTC0G_8BITS (BIT(1)|BIT(0)) |
| 52 | #define DMA_DSTC1B_8BITS (BIT(3)|BIT(2)) |
| 53 | #define DMA_DSTC2R_8BITS (BIT(5)|BIT(4)) |
| 54 | #define CLR_G 0x0 |
| 55 | #define CLR_B 0x1 |
| 56 | #define CLR_R 0x2 |
| 57 | #define MDP_GET_PACK_PATTERN(a,x,y,z,bit) (((a)<<(bit*3))|((x)<<(bit*2))|((y)<<bit)|(z)) |
| 58 | #define DMA_PACK_ALIGN_LSB 0 |
| 59 | #define DMA_PACK_PATTERN_RGB \ |
| 60 | (MDP_GET_PACK_PATTERN(0,CLR_R,CLR_G,CLR_B,2)<<8) |
| 61 | #define DMA_DITHER_EN BIT(24) |
| 62 | #define DMA_OUT_SEL_LCDC BIT(20) |
| 63 | #define DMA_IBUF_FORMAT_RGB565 BIT(25) |
| 64 | |
| 65 | static struct fbcon_config fb_cfg = { |
| 66 | .height = LCDC_FB_HEIGHT, |
| 67 | .width = LCDC_FB_WIDTH, |
| 68 | .stride = LCDC_FB_WIDTH, |
| 69 | .format = FB_FORMAT_RGB565, |
| 70 | .bpp = LCDC_FB_BPP, |
| 71 | .update_start = NULL, |
| 72 | .update_done = NULL, |
| 73 | }; |
| 74 | |
| 75 | void lcdc_clock_init(unsigned rate); |
| 76 | |
Shashank Mittal | 3704083 | 2010-08-24 15:57:57 -0700 | [diff] [blame^] | 77 | #if MDP4 |
| 78 | void mdp4_display_intf_sel(int intf) |
| 79 | { |
| 80 | unsigned bits, mask; |
| 81 | bits = readl(MSM_MDP_BASE1 + 0x0038); |
| 82 | mask = 0x03; /* 2 bits */ |
| 83 | intf &= 0x03; /* 2 bits */ |
| 84 | bits &= ~mask; |
| 85 | bits |= intf; |
| 86 | writel(bits, MSM_MDP_BASE1 + 0x0038); /* MDP_DISP_INTF_SEL */ |
| 87 | } |
| 88 | #endif |
| 89 | |
Ajay Dudani | 232ce81 | 2009-12-02 00:14:11 -0800 | [diff] [blame] | 90 | struct fbcon_config *lcdc_init(void) |
| 91 | { |
| 92 | dprintf(INFO, "lcdc_init(): panel is %d x %d\n", fb_cfg.width, fb_cfg.height); |
| 93 | |
| 94 | fb_cfg.base = |
| 95 | memalign(4096, fb_cfg.width * fb_cfg.height * (fb_cfg.bpp / 8)); |
| 96 | |
Ajay Dudani | 232ce81 | 2009-12-02 00:14:11 -0800 | [diff] [blame] | 97 | writel((unsigned) fb_cfg.base, MSM_MDP_BASE1 + 0x90008); |
| 98 | |
| 99 | writel((fb_cfg.height << 16) | fb_cfg.width, MSM_MDP_BASE1 + 0x90004); |
| 100 | writel(fb_cfg.width * fb_cfg.bpp / 8, MSM_MDP_BASE1 + 0x9000c); |
| 101 | writel(0, MSM_MDP_BASE1 + 0x90010); |
| 102 | |
| 103 | writel(DMA_PACK_ALIGN_LSB|DMA_PACK_PATTERN_RGB|DMA_DITHER_EN|DMA_OUT_SEL_LCDC| |
| 104 | DMA_IBUF_FORMAT_RGB565|DMA_DSTC0G_8BITS|DMA_DSTC1B_8BITS|DMA_DSTC2R_8BITS, |
| 105 | MSM_MDP_BASE1 + 0x90000); |
| 106 | |
| 107 | int hsync_period = LCDC_HSYNC_PULSE_WIDTH_DCLK + LCDC_HSYNC_BACK_PORCH_DCLK + fb_cfg.width + LCDC_HSYNC_FRONT_PORCH_DCLK; |
| 108 | int vsync_period = (LCDC_VSYNC_PULSE_WIDTH_LINES + LCDC_VSYNC_BACK_PORCH_LINES + fb_cfg.height + LCDC_VSYNC_FRONT_PORCH_LINES) * hsync_period; |
| 109 | int hsync_start_x = LCDC_HSYNC_PULSE_WIDTH_DCLK + LCDC_HSYNC_BACK_PORCH_DCLK; |
| 110 | int hsync_end_x = hsync_period - LCDC_HSYNC_FRONT_PORCH_DCLK - 1; |
| 111 | int display_hctl = (hsync_end_x << 16) | hsync_start_x; |
| 112 | int display_vstart= (LCDC_VSYNC_PULSE_WIDTH_LINES + LCDC_VSYNC_BACK_PORCH_LINES) * hsync_period + LCDC_HSYNC_SKEW_DCLK; |
| 113 | int display_vend = vsync_period - (LCDC_VSYNC_FRONT_PORCH_LINES * hsync_period) + LCDC_HSYNC_SKEW_DCLK - 1; |
| 114 | |
Shashank Mittal | 3704083 | 2010-08-24 15:57:57 -0700 | [diff] [blame^] | 115 | writel((hsync_period << 16) | LCDC_HSYNC_PULSE_WIDTH_DCLK, MSM_MDP_BASE1 + LCDC_BASE + 0x4); |
| 116 | writel(vsync_period, MSM_MDP_BASE1 + LCDC_BASE + 0x8); |
| 117 | writel(LCDC_VSYNC_PULSE_WIDTH_LINES * hsync_period, MSM_MDP_BASE1 + LCDC_BASE + 0xc); |
| 118 | writel(display_hctl, MSM_MDP_BASE1 + LCDC_BASE + 0x10); |
| 119 | writel(display_vstart, MSM_MDP_BASE1 + LCDC_BASE + 0x14); |
| 120 | writel(display_vend, MSM_MDP_BASE1 + LCDC_BASE + 0x18); |
| 121 | #if MDP4 |
| 122 | writel(0xf, MSM_MDP_BASE1 + LCDC_BASE + 0x28); |
| 123 | #else |
| 124 | writel(0, MSM_MDP_BASE1 + LCDC_BASE + 0x28); |
| 125 | #endif |
| 126 | writel(0xff, MSM_MDP_BASE1 + LCDC_BASE + 0x2c); |
| 127 | writel(LCDC_HSYNC_SKEW_DCLK, MSM_MDP_BASE1 + LCDC_BASE + 0x30); |
| 128 | #if MDP4 |
| 129 | writel(0x3, MSM_MDP_BASE1 + LCDC_BASE + 0x38); |
| 130 | #else |
| 131 | writel(0, MSM_MDP_BASE1 + LCDC_BASE + 0x38); |
| 132 | #endif |
| 133 | writel(0, MSM_MDP_BASE1 + LCDC_BASE + 0x1c); |
| 134 | writel(0, MSM_MDP_BASE1 + LCDC_BASE + 0x20); |
| 135 | writel(0, MSM_MDP_BASE1 + LCDC_BASE + 0x24); |
| 136 | #if MDP4 |
| 137 | writel(0xB, MSM_MDP_BASE1 + 0x10004); |
| 138 | writel(0xB, MSM_MDP_BASE1 + 0x18004); |
| 139 | #endif |
| 140 | writel(1, MSM_MDP_BASE1 + LCDC_BASE + 0x0); |
Ajay Dudani | 232ce81 | 2009-12-02 00:14:11 -0800 | [diff] [blame] | 141 | |
| 142 | return &fb_cfg; |
| 143 | } |
Shashank Mittal | 4f99a88 | 2010-02-01 13:58:50 -0800 | [diff] [blame] | 144 | |