]> git.sur5r.net Git - u-boot/commitdiff
video: dcu: Add DCU driver support
authorWang Huan <b18965@freescale.com>
Fri, 5 Sep 2014 05:52:48 +0000 (13:52 +0800)
committerYork Sun <yorksun@freescale.com>
Mon, 8 Sep 2014 17:30:35 +0000 (10:30 -0700)
This patch is to add DCU driver support. DCU also named
2D-ACE(Two Dimensional Animation and Compositing Engine)
is a system master that fetches graphics stored in internal
or external memory and displays them on a TFT LCD panel.

Signed-off-by: Alison Wang <alison.wang@freescale.com>
arch/arm/include/asm/arch-ls102xa/config.h
drivers/video/Makefile
drivers/video/fsl_dcu_fb.c [new file with mode: 0644]
include/fsl_dcu_fb.h [new file with mode: 0644]

index 08c21afd1ee910b251d83d0113c8ff3bcbed0563..ed78c33e0a3ef4ffc19f84dbf16f81218a079ca6 100644 (file)
@@ -24,6 +24,7 @@
 #define CONFIG_SYS_FSL_LS1_CLK_ADDR            (CONFIG_SYS_IMMR + 0x00ee1000)
 #define CONFIG_SYS_NS16550_COM1                        (CONFIG_SYS_IMMR + 0x011c0500)
 #define CONFIG_SYS_NS16550_COM2                        (CONFIG_SYS_IMMR + 0x011d0500)
+#define CONFIG_SYS_DCU_ADDR                    (CONFIG_SYS_IMMR + 0x01ce0000)
 
 #define CONFIG_SYS_TSEC1_OFFSET                        0x01d10000
 #define CONFIG_SYS_TSEC2_OFFSET                        0x01d50000
@@ -60,6 +61,9 @@
 #define CONFIG_SYS_FSL_WDOG_BE
 #define CONFIG_SYS_FSL_DSPI_BE
 #define CONFIG_SYS_FSL_QSPI_BE
+#define CONFIG_SYS_FSL_DCU_BE
+
+#define DCU_LAYER_MAX_NUM                      16
 
 #define CONFIG_SYS_FSL_SRDS_1
 
index 93a91c3fa61d126e3814012d68d6904d050ae1dc..0914ea173d8a5fd41cf844ffa587d58e7d4fa5b9 100644 (file)
@@ -15,6 +15,7 @@ obj-$(CONFIG_EXYNOS_MIPI_DSIM) += exynos_mipi_dsi.o exynos_mipi_dsi_common.o \
                                exynos_mipi_dsi_lowlevel.o
 obj-$(CONFIG_EXYNOS_PWM_BL) += exynos_pwm_bl.o
 obj-$(CONFIG_FSL_DIU_FB) += fsl_diu_fb.o videomodes.o
+obj-$(CONFIG_FSL_DCU_FB) += fsl_dcu_fb.o videomodes.o
 obj-$(CONFIG_L5F31188) += l5f31188.o
 obj-$(CONFIG_MPC8XX_LCD) += mpc8xx_lcd.o
 obj-$(CONFIG_PXA_LCD) += pxa_lcd.o
diff --git a/drivers/video/fsl_dcu_fb.c b/drivers/video/fsl_dcu_fb.c
new file mode 100644 (file)
index 0000000..d4cd382
--- /dev/null
@@ -0,0 +1,365 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * FSL DCU Framebuffer driver
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <asm/io.h>
+#include <common.h>
+#include <fsl_dcu_fb.h>
+#include <linux/fb.h>
+#include <malloc.h>
+#include <video_fb.h>
+#include "videomodes.h"
+
+/* Convert the X,Y resolution pair into a single number */
+#define RESOLUTION(x, y) (((u32)(x) << 16) | (y))
+
+#ifdef CONFIG_SYS_FSL_DCU_LE
+#define        dcu_read32      in_le32
+#define        dcu_write32     out_le32
+#elif defined(CONFIG_SYS_FSL_DCU_BE)
+#define        dcu_read32      in_be32
+#define        dcu_write32     out_be32
+#endif
+
+#define DCU_MODE_BLEND_ITER(x)          ((x) << 20)
+#define DCU_MODE_RASTER_EN             (1 << 14)
+#define DCU_MODE_NORMAL                        1
+#define DCU_MODE_COLORBAR               3
+#define DCU_BGND_R(x)                  ((x) << 16)
+#define DCU_BGND_G(x)                  ((x) << 8)
+#define DCU_BGND_B(x)                  (x)
+#define DCU_DISP_SIZE_DELTA_Y(x)       ((x) << 16)
+#define DCU_DISP_SIZE_DELTA_X(x)       (x)
+#define DCU_HSYN_PARA_BP(x)            ((x) << 22)
+#define DCU_HSYN_PARA_PW(x)            ((x) << 11)
+#define DCU_HSYN_PARA_FP(x)            (x)
+#define DCU_VSYN_PARA_BP(x)            ((x) << 22)
+#define DCU_VSYN_PARA_PW(x)            ((x) << 11)
+#define DCU_VSYN_PARA_FP(x)            (x)
+#define DCU_SYN_POL_INV_PXCK_FALL      (0 << 6)
+#define DCU_SYN_POL_NEG_REMAIN         (0 << 5)
+#define DCU_SYN_POL_INV_VS_LOW         (1 << 1)
+#define DCU_SYN_POL_INV_HS_LOW         (1)
+#define DCU_THRESHOLD_LS_BF_VS(x)      ((x) << 16)
+#define DCU_THRESHOLD_OUT_BUF_HIGH(x)  ((x) << 8)
+#define DCU_THRESHOLD_OUT_BUF_LOW(x)   (x)
+#define DCU_UPDATE_MODE_MODE            (1 << 31)
+#define DCU_UPDATE_MODE_READREG         (1 << 30)
+
+#define DCU_CTRLDESCLN_1_HEIGHT(x)     ((x) << 16)
+#define DCU_CTRLDESCLN_1_WIDTH(x)      (x)
+#define DCU_CTRLDESCLN_2_POSY(x)       ((x) << 16)
+#define DCU_CTRLDESCLN_2_POSX(x)       (x)
+#define DCU_CTRLDESCLN_4_EN            (1 << 31)
+#define DCU_CTRLDESCLN_4_TILE_EN       (1 << 30)
+#define DCU_CTRLDESCLN_4_DATA_SEL_CLUT (1 << 29)
+#define DCU_CTRLDESCLN_4_SAFETY_EN     (1 << 28)
+#define DCU_CTRLDESCLN_4_TRANS(x)      ((x) << 20)
+#define DCU_CTRLDESCLN_4_BPP(x)                ((x) << 16)
+#define DCU_CTRLDESCLN_4_RLE_EN                (1 << 15)
+#define DCU_CTRLDESCLN_4_LUOFFS(x)     ((x) << 4)
+#define DCU_CTRLDESCLN_4_BB_ON         (1 << 2)
+#define DCU_CTRLDESCLN_4_AB(x)         (x)
+#define DCU_CTRLDESCLN_5_CKMAX_R(x)    ((x) << 16)
+#define DCU_CTRLDESCLN_5_CKMAX_G(x)    ((x) << 8)
+#define DCU_CTRLDESCLN_5_CKMAX_B(x)    (x)
+#define DCU_CTRLDESCLN_6_CKMIN_R(x)    ((x) << 16)
+#define DCU_CTRLDESCLN_6_CKMIN_G(x)    ((x) << 8)
+#define DCU_CTRLDESCLN_6_CKMIN_B(x)    (x)
+#define DCU_CTRLDESCLN_7_TILE_VER(x)   ((x) << 16)
+#define DCU_CTRLDESCLN_7_TILE_HOR(x)   (x)
+#define DCU_CTRLDESCLN_8_FG_FCOLOR(x)  (x)
+#define DCU_CTRLDESCLN_9_BG_BCOLOR(x)  (x)
+
+#define BPP_16_RGB565                  4
+#define BPP_24_RGB888                  5
+#define BPP_32_ARGB8888                        6
+
+/*
+ * This setting is used for the TWR_LCD_RGB card
+ */
+static struct fb_videomode fsl_dcu_mode_480_272 = {
+       .name           = "480x272-60",
+       .refresh        = 60,
+       .xres           = 480,
+       .yres           = 272,
+       .pixclock       = 91996,
+       .left_margin    = 2,
+       .right_margin   = 2,
+       .upper_margin   = 1,
+       .lower_margin   = 1,
+       .hsync_len      = 41,
+       .vsync_len      = 2,
+       .sync           = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+       .vmode          = FB_VMODE_NONINTERLACED
+};
+
+/*
+ * This setting is used for Siliconimage SiI9022A HDMI
+ */
+static struct fb_videomode fsl_dcu_mode_640_480 = {
+       .name           = "640x480-60",
+       .refresh        = 60,
+       .xres           = 640,
+       .yres           = 480,
+       .pixclock       = 39722,
+       .left_margin    = 48,
+       .right_margin   = 16,
+       .upper_margin   = 33,
+       .lower_margin   = 10,
+       .hsync_len      = 96,
+       .vsync_len      = 2,
+       .sync           = 0,
+       .vmode          = FB_VMODE_NONINTERLACED,
+};
+
+/*
+ * DCU register map
+ */
+struct dcu_reg {
+       u32 desc_cursor[4];
+       u32 mode;
+       u32 bgnd;
+       u32 disp_size;
+       u32 hsyn_para;
+       u32 vsyn_para;
+       u32 synpol;
+       u32 threshold;
+       u32 int_status;
+       u32 int_mask;
+       u32 colbar[8];
+       u32 div_ratio;
+       u32 sign_calc[2];
+       u32 crc_val;
+       u8 res_064[0x6c-0x64];
+       u32 parr_err_status1;
+       u8 res_070[0x7c-0x70];
+       u32 parr_err_status3;
+       u32 mparr_err_status1;
+       u8 res_084[0x90-0x84];
+       u32 mparr_err_status3;
+       u32 threshold_inp_buf[2];
+       u8 res_09c[0xa0-0x9c];
+       u32 luma_comp;
+       u32 chroma_red;
+       u32 chroma_green;
+       u32 chroma_blue;
+       u32 crc_pos;
+       u32 lyr_intpol_en;
+       u32 lyr_luma_comp;
+       u32 lyr_chrm_red;
+       u32 lyr_chrm_grn;
+       u32 lyr_chrm_blue;
+       u8 res_0c4[0xcc-0xc8];
+       u32 update_mode;
+       u32 underrun;
+       u8 res_0d4[0x100-0xd4];
+       u32 gpr;
+       u32 slr_l[2];
+       u32 slr_disp_size;
+       u32 slr_hvsync_para;
+       u32 slr_pol;
+       u32 slr_l_transp[2];
+       u8 res_120[0x200-0x120];
+       u32 ctrldescl[DCU_LAYER_MAX_NUM][16];
+};
+
+static struct fb_info info;
+
+static void reset_total_layers(void)
+{
+       struct dcu_reg *regs = (struct dcu_reg *)CONFIG_SYS_DCU_ADDR;
+       int i;
+
+       for (i = 0; i < DCU_LAYER_MAX_NUM; i++) {
+               dcu_write32(&regs->ctrldescl[i][0], 0);
+               dcu_write32(&regs->ctrldescl[i][1], 0);
+               dcu_write32(&regs->ctrldescl[i][2], 0);
+               dcu_write32(&regs->ctrldescl[i][3], 0);
+               dcu_write32(&regs->ctrldescl[i][4], 0);
+               dcu_write32(&regs->ctrldescl[i][5], 0);
+               dcu_write32(&regs->ctrldescl[i][6], 0);
+               dcu_write32(&regs->ctrldescl[i][7], 0);
+               dcu_write32(&regs->ctrldescl[i][8], 0);
+               dcu_write32(&regs->ctrldescl[i][9], 0);
+               dcu_write32(&regs->ctrldescl[i][10], 0);
+       }
+
+       dcu_write32(&regs->update_mode, DCU_UPDATE_MODE_READREG);
+}
+
+static int layer_ctrldesc_init(int index, u32 pixel_format)
+{
+       struct dcu_reg *regs = (struct dcu_reg *)CONFIG_SYS_DCU_ADDR;
+       unsigned int bpp = BPP_24_RGB888;
+
+       dcu_write32(&regs->ctrldescl[index][0],
+                   DCU_CTRLDESCLN_1_HEIGHT(info.var.yres) |
+                   DCU_CTRLDESCLN_1_WIDTH(info.var.xres));
+
+       dcu_write32(&regs->ctrldescl[index][1],
+                   DCU_CTRLDESCLN_2_POSY(0) |
+                   DCU_CTRLDESCLN_2_POSX(0));
+
+       dcu_write32(&regs->ctrldescl[index][2], (unsigned int)info.screen_base);
+
+       switch (pixel_format) {
+       case 16:
+               bpp = BPP_16_RGB565;
+               break;
+       case 24:
+               bpp = BPP_24_RGB888;
+               break;
+       case 32:
+               bpp = BPP_32_ARGB8888;
+               break;
+       default:
+               printf("unsupported color depth: %u\n", pixel_format);
+       }
+
+       dcu_write32(&regs->ctrldescl[index][3],
+                   DCU_CTRLDESCLN_4_EN |
+                   DCU_CTRLDESCLN_4_TRANS(0xff) |
+                   DCU_CTRLDESCLN_4_BPP(bpp) |
+                   DCU_CTRLDESCLN_4_AB(0));
+
+       dcu_write32(&regs->ctrldescl[index][4],
+                   DCU_CTRLDESCLN_5_CKMAX_R(0xff) |
+                   DCU_CTRLDESCLN_5_CKMAX_G(0xff) |
+                   DCU_CTRLDESCLN_5_CKMAX_B(0xff));
+       dcu_write32(&regs->ctrldescl[index][5],
+                   DCU_CTRLDESCLN_6_CKMIN_R(0) |
+                   DCU_CTRLDESCLN_6_CKMIN_G(0) |
+                   DCU_CTRLDESCLN_6_CKMIN_B(0));
+
+       dcu_write32(&regs->ctrldescl[index][6],
+                   DCU_CTRLDESCLN_7_TILE_VER(0) |
+                   DCU_CTRLDESCLN_7_TILE_HOR(0));
+
+       dcu_write32(&regs->ctrldescl[index][7], DCU_CTRLDESCLN_8_FG_FCOLOR(0));
+       dcu_write32(&regs->ctrldescl[index][8], DCU_CTRLDESCLN_9_BG_BCOLOR(0));
+
+       dcu_write32(&regs->update_mode, DCU_UPDATE_MODE_READREG);
+
+       return 0;
+}
+
+int fsl_dcu_init(unsigned int xres, unsigned int yres,
+                unsigned int pixel_format)
+{
+       struct dcu_reg *regs = (struct dcu_reg *)CONFIG_SYS_DCU_ADDR;
+       unsigned int div, mode;
+
+       /* Memory allocation for framebuffer */
+       info.screen_size =
+               info.var.xres * info.var.yres * (info.var.bits_per_pixel / 8);
+       info.screen_base = (char *)memalign(ARCH_DMA_MINALIGN,
+                       roundup(info.screen_size, ARCH_DMA_MINALIGN));
+       memset(info.screen_base, 0, info.screen_size);
+
+       reset_total_layers();
+       div = dcu_set_pixel_clock(info.var.pixclock);
+       dcu_write32(&regs->div_ratio, (div - 1));
+
+       dcu_write32(&regs->disp_size,
+                   DCU_DISP_SIZE_DELTA_Y(info.var.yres) |
+                   DCU_DISP_SIZE_DELTA_X(info.var.xres / 16));
+
+       dcu_write32(&regs->hsyn_para,
+                   DCU_HSYN_PARA_BP(info.var.left_margin) |
+                   DCU_HSYN_PARA_PW(info.var.hsync_len) |
+                   DCU_HSYN_PARA_FP(info.var.right_margin));
+
+       dcu_write32(&regs->vsyn_para,
+                   DCU_VSYN_PARA_BP(info.var.upper_margin) |
+                   DCU_VSYN_PARA_PW(info.var.vsync_len) |
+                   DCU_VSYN_PARA_FP(info.var.lower_margin));
+
+       dcu_write32(&regs->synpol,
+                   DCU_SYN_POL_INV_PXCK_FALL |
+                   DCU_SYN_POL_NEG_REMAIN |
+                   DCU_SYN_POL_INV_VS_LOW |
+                   DCU_SYN_POL_INV_HS_LOW);
+
+       dcu_write32(&regs->bgnd,
+                   DCU_BGND_R(0) | DCU_BGND_G(0) | DCU_BGND_B(0));
+
+       dcu_write32(&regs->mode,
+                   DCU_MODE_BLEND_ITER(DCU_LAYER_MAX_NUM) |
+                   DCU_MODE_RASTER_EN);
+
+       dcu_write32(&regs->threshold,
+                   DCU_THRESHOLD_LS_BF_VS(0x3) |
+                   DCU_THRESHOLD_OUT_BUF_HIGH(0x78) |
+                   DCU_THRESHOLD_OUT_BUF_LOW(0));
+
+       mode = dcu_read32(&regs->mode);
+       dcu_write32(&regs->mode, mode | DCU_MODE_NORMAL);
+
+       layer_ctrldesc_init(0, pixel_format);
+
+       return 0;
+}
+
+void *video_hw_init(void)
+{
+       static GraphicDevice ctfb;
+       const char *options;
+       unsigned int depth = 0, freq = 0;
+       struct fb_videomode *fsl_dcu_mode_db = &fsl_dcu_mode_480_272;
+
+       if (!video_get_video_mode(&ctfb.winSizeX, &ctfb.winSizeY, &depth, &freq,
+                                 &options))
+               return NULL;
+
+       /* Find the monitor port, which is a required option */
+       if (!options)
+               return NULL;
+       if (strncmp(options, "monitor=", 8) != 0)
+               return NULL;
+
+       switch (RESOLUTION(ctfb.winSizeX, ctfb.winSizeY)) {
+       case RESOLUTION(480, 272):
+               fsl_dcu_mode_db = &fsl_dcu_mode_480_272;
+               break;
+       case RESOLUTION(640, 480):
+               fsl_dcu_mode_db = &fsl_dcu_mode_640_480;
+               break;
+       default:
+               printf("unsupported resolution %ux%u\n",
+                      ctfb.winSizeX, ctfb.winSizeY);
+       }
+
+       info.var.xres = fsl_dcu_mode_db->xres;
+       info.var.yres = fsl_dcu_mode_db->yres;
+       info.var.bits_per_pixel = 32;
+       info.var.pixclock = fsl_dcu_mode_db->pixclock;
+       info.var.left_margin = fsl_dcu_mode_db->left_margin;
+       info.var.right_margin = fsl_dcu_mode_db->right_margin;
+       info.var.upper_margin = fsl_dcu_mode_db->upper_margin;
+       info.var.lower_margin = fsl_dcu_mode_db->lower_margin;
+       info.var.hsync_len = fsl_dcu_mode_db->hsync_len;
+       info.var.vsync_len = fsl_dcu_mode_db->vsync_len;
+       info.var.sync = fsl_dcu_mode_db->sync;
+       info.var.vmode = fsl_dcu_mode_db->vmode;
+       info.fix.line_length = info.var.xres * info.var.bits_per_pixel / 8;
+
+       if (platform_dcu_init(ctfb.winSizeX, ctfb.winSizeY,
+                             options + 8, fsl_dcu_mode_db) < 0)
+               return NULL;
+
+       ctfb.frameAdrs = (unsigned int)info.screen_base;
+       ctfb.plnSizeX = ctfb.winSizeX;
+       ctfb.plnSizeY = ctfb.winSizeY;
+
+       ctfb.gdfBytesPP = 4;
+       ctfb.gdfIndex = GDF_32BIT_X888RGB;
+
+       ctfb.memSize = info.screen_size;
+
+       return &ctfb;
+}
diff --git a/include/fsl_dcu_fb.h b/include/fsl_dcu_fb.h
new file mode 100644 (file)
index 0000000..4263298
--- /dev/null
@@ -0,0 +1,16 @@
+/*
+ * Copyright 2014 Freescale Semiconductor, Inc.
+ *
+ * FSL DCU Framebuffer driver
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+#include <linux/fb.h>
+
+int fsl_dcu_init(unsigned int xres, unsigned int yres,
+                unsigned int pixel_format);
+
+/* Prototypes for external board-specific functions */
+int platform_dcu_init(unsigned int xres, unsigned int yres,
+                     const char *port, struct fb_videomode *dcu_fb_videomode);
+unsigned int dcu_set_pixel_clock(unsigned int pixclock);