+++ /dev/null
-/*
- * JzRISC lcd controller
- *
- * xiangfu liu <xiangfu.z@gmail.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-/*
- * Fallowing macro may be used:
- * CONFIG_LCD : LCD support
- * LCD_BPP : Bits per pixel, 0 = 1, 1 = 2, 2 = 4, 3 = 8
- * CONFIG_LCD_LOGO : show logo
- */
-
-#include <config.h>
-#include <common.h>
-#include <lcd.h>
-
-#include <asm/io.h> /* virt_to_phys() */
-
-#if defined(CONFIG_LCD) && !defined(CONFIG_SLCD)
-
-#if defined(CONFIG_JZ4740)
-#include <asm/jz4740.h>
-#endif
-
-#include "jz_lcd.h"
-
-
-struct jzfb_info {
- unsigned int cfg; /* panel mode and pin usage etc. */
- unsigned int w;
- unsigned int h;
- unsigned int bpp; /* bit per pixel */
- unsigned int fclk; /* frame clk */
- unsigned int hsw; /* hsync width, in pclk */
- unsigned int vsw; /* vsync width, in line count */
- unsigned int elw; /* end of line, in pclk */
- unsigned int blw; /* begin of line, in pclk */
- unsigned int efw; /* end of frame, in line count */
- unsigned int bfw; /* begin of frame, in line count */
-};
-
-static struct jzfb_info jzfb = {
- #if defined(CONFIG_NANONOTE)
- MODE_8BIT_SERIAL_TFT | PCLK_N | HSYNC_N | VSYNC_N,
- 320, 240, 32, 70, 1, 1, 273, 140, 1, 20
- #endif
-
-};
-
-/************************************************************************/
-
-vidinfo_t panel_info = {
-#if defined(CONFIG_JZLCD_FOXCONN_PT035TN01)
- 320, 240, LCD_BPP,
-#endif
-};
-
-/*----------------------------------------------------------------------*/
-
-int lcd_line_length;
-
-int lcd_color_fg;
-int lcd_color_bg;
-
-/*
- * Frame buffer memory information
- */
-void *lcd_base; /* Start of framebuffer memory */
-void *lcd_console_address; /* Start of console buffer */
-
-short console_col;
-short console_row;
-
-/*----------------------------------------------------------------------*/
-
-void lcd_ctrl_init (void *lcdbase);
-
-void lcd_enable (void);
-void lcd_disable (void);
-
-/*----------------------------------------------------------------------*/
-
-static int jz_lcd_init_mem(void *lcdbase, vidinfo_t *vid);
-static void jz_lcd_desc_init(vidinfo_t *vid);
-static int jz_lcd_hw_init( vidinfo_t *vid );
-extern int flush_cache_all(void);
-
-#if LCD_BPP == LCD_COLOR8
-void lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue);
-#endif
-#if LCD_BPP == LCD_MONOCHROME
-void lcd_initcolregs (void);
-#endif
-
-/*-----------------------------------------------------------------------*/
-
-void lcd_ctrl_init (void *lcdbase)
-{
- __lcd_display_pin_init();
-
- jz_lcd_init_mem(lcdbase, &panel_info);
- jz_lcd_desc_init(&panel_info);
- jz_lcd_hw_init(&panel_info);
-
- __lcd_display_on() ;
-}
-
-/*----------------------------------------------------------------------*/
-#if LCD_BPP == LCD_COLOR8
-void
-lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue)
-{
-}
-#endif
-/*----------------------------------------------------------------------*/
-
-#if LCD_BPP == LCD_MONOCHROME
-static
-void lcd_initcolregs (void)
-{
-}
-#endif
-
-/*
- * Before enabled lcd controller, lcd registers should be configured correctly.
- */
-
-void lcd_enable (void)
-{
- REG_LCD_CTRL &= ~(1<<4); /* LCDCTRL.DIS */
- REG_LCD_CTRL |= 1<<3; /* LCDCTRL.ENA*/
-}
-
-void lcd_disable (void)
-{
- REG_LCD_CTRL |= (1<<4); /* LCDCTRL.DIS, regular disable */
- /* REG_LCD_CTRL |= (1<<3); */ /* LCDCTRL.DIS, quikly disable */
-}
-
-static int jz_lcd_init_mem(void *lcdbase, vidinfo_t *vid)
-{
- u_long palette_mem_size;
- struct jz_fb_info *fbi = &vid->jz_fb;
- int fb_size = vid->vl_row * (vid->vl_col * NBITS (vid->vl_bpix)) / 8;
-
- fbi->screen = (u_long)lcdbase;
- fbi->palette_size = 256;
- palette_mem_size = fbi->palette_size * sizeof(u16);
-
- debug("jz_lcd.c palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size);
- /* locate palette and descs at end of page following fb */
- fbi->palette = (u_long)lcdbase + fb_size + PAGE_SIZE - palette_mem_size;
-
- return 0;
-}
-
-static void jz_lcd_desc_init(vidinfo_t *vid)
-{
- struct jz_fb_info * fbi;
- fbi = &vid->jz_fb;
- fbi->dmadesc_fblow = (struct jz_fb_dma_descriptor *)((unsigned int)fbi->palette - 3*16);
- fbi->dmadesc_fbhigh = (struct jz_fb_dma_descriptor *)((unsigned int)fbi->palette - 2*16);
- fbi->dmadesc_palette = (struct jz_fb_dma_descriptor *)((unsigned int)fbi->palette - 1*16);
-
- #define BYTES_PER_PANEL (vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8)
-
- /* populate descriptors */
- fbi->dmadesc_fblow->fdadr = virt_to_phys(fbi->dmadesc_fblow);
- fbi->dmadesc_fblow->fsadr = virt_to_phys((void *)(fbi->screen + BYTES_PER_PANEL));
- fbi->dmadesc_fblow->fidr = 0;
- fbi->dmadesc_fblow->ldcmd = BYTES_PER_PANEL / 4 ;
-
- fbi->fdadr1 = virt_to_phys(fbi->dmadesc_fblow); /* only used in dual-panel mode */
-
- fbi->dmadesc_fbhigh->fsadr = virt_to_phys((void *)fbi->screen);
- fbi->dmadesc_fbhigh->fidr = 0;
- fbi->dmadesc_fbhigh->ldcmd = BYTES_PER_PANEL / 4; /* length in word */
-
- fbi->dmadesc_palette->fsadr = virt_to_phys((void *)fbi->palette);
- fbi->dmadesc_palette->fidr = 0;
- fbi->dmadesc_palette->ldcmd = (fbi->palette_size * 2)/4 | (1<<28);
-
- if( NBITS(vid->vl_bpix) < 12)
- {
- /* assume any mode with <12 bpp is palette driven */
- fbi->dmadesc_palette->fdadr = virt_to_phys(fbi->dmadesc_fbhigh);
- fbi->dmadesc_fbhigh->fdadr = virt_to_phys(fbi->dmadesc_palette);
- /* flips back and forth between pal and fbhigh */
- fbi->fdadr0 = virt_to_phys(fbi->dmadesc_palette);
- } else {
- /* palette shouldn't be loaded in true-color mode */
- fbi->dmadesc_fbhigh->fdadr = virt_to_phys((void *)fbi->dmadesc_fbhigh);
- fbi->fdadr0 = virt_to_phys(fbi->dmadesc_fbhigh); /* no pal just fbhigh */
- }
-
- flush_cache_all();
-}
-
-static int jz_lcd_hw_init(vidinfo_t *vid)
-{
- struct jz_fb_info *fbi = &vid->jz_fb;
- unsigned int val = 0;
- unsigned int pclk;
- unsigned int stnH;
-#if defined(CONFIG_MIPS_JZ4740)
- int pll_div;
-#endif
-
- /* Setting Control register */
- switch (jzfb.bpp) {
- case 1:
- val |= LCD_CTRL_BPP_1;
- break;
- case 2:
- val |= LCD_CTRL_BPP_2;
- break;
- case 4:
- val |= LCD_CTRL_BPP_4;
- break;
- case 8:
- val |= LCD_CTRL_BPP_8;
- break;
- case 15:
- val |= LCD_CTRL_RGB555;
- case 16:
- val |= LCD_CTRL_BPP_16;
- break;
-#if defined(CONFIG_MIPS_JZ4740)
- case 17 ... 32:
- val |= LCD_CTRL_BPP_18_24; /* target is 4bytes/pixel */
- break;
-#endif
- default:
- printf("jz_lcd.c The BPP %d is not supported\n", jzfb.bpp);
- val |= LCD_CTRL_BPP_16;
- break;
- }
-
- switch (jzfb.cfg & MODE_MASK) {
- case MODE_STN_MONO_DUAL:
- case MODE_STN_COLOR_DUAL:
- case MODE_STN_MONO_SINGLE:
- case MODE_STN_COLOR_SINGLE:
- switch (jzfb.bpp) {
- case 1:
- /* val |= LCD_CTRL_PEDN; */
- case 2:
- val |= LCD_CTRL_FRC_2;
- break;
- case 4:
- val |= LCD_CTRL_FRC_4;
- break;
- case 8:
- default:
- val |= LCD_CTRL_FRC_16;
- break;
- }
- break;
- }
-
- val |= LCD_CTRL_BST_16; /* Burst Length is 16WORD=64Byte */
- val |= LCD_CTRL_OFUP; /* OutFIFO underrun protect */
-
- switch (jzfb.cfg & MODE_MASK) {
- case MODE_STN_MONO_DUAL:
- case MODE_STN_COLOR_DUAL:
- case MODE_STN_MONO_SINGLE:
- case MODE_STN_COLOR_SINGLE:
- switch (jzfb.cfg & STN_DAT_PINMASK) {
-#define align2(n) (n)=((((n)+1)>>1)<<1)
-#define align4(n) (n)=((((n)+3)>>2)<<2)
-#define align8(n) (n)=((((n)+7)>>3)<<3)
- case STN_DAT_PIN1:
- /* Do not adjust the hori-param value. */
- break;
- case STN_DAT_PIN2:
- align2(jzfb.hsw);
- align2(jzfb.elw);
- align2(jzfb.blw);
- break;
- case STN_DAT_PIN4:
- align4(jzfb.hsw);
- align4(jzfb.elw);
- align4(jzfb.blw);
- break;
- case STN_DAT_PIN8:
- align8(jzfb.hsw);
- align8(jzfb.elw);
- align8(jzfb.blw);
- break;
- }
- break;
- }
-
- REG_LCD_CTRL = val;
-
- switch (jzfb.cfg & MODE_MASK) {
- case MODE_STN_MONO_DUAL:
- case MODE_STN_COLOR_DUAL:
- case MODE_STN_MONO_SINGLE:
- case MODE_STN_COLOR_SINGLE:
- if (((jzfb.cfg & MODE_MASK) == MODE_STN_MONO_DUAL) ||
- ((jzfb.cfg & MODE_MASK) == MODE_STN_COLOR_DUAL))
- stnH = jzfb.h >> 1;
- else
- stnH = jzfb.h;
-
- REG_LCD_VSYNC = (0 << 16) | jzfb.vsw;
- REG_LCD_HSYNC = ((jzfb.blw+jzfb.w) << 16) | (jzfb.blw+jzfb.w+jzfb.hsw);
-
- /* Screen setting */
- REG_LCD_VAT = ((jzfb.blw + jzfb.w + jzfb.hsw + jzfb.elw) << 16) | (stnH + jzfb.vsw + jzfb.bfw + jzfb.efw);
- REG_LCD_DAH = (jzfb.blw << 16) | (jzfb.blw + jzfb.w);
- REG_LCD_DAV = (0 << 16) | (stnH);
-
- /* AC BIAs signal */
- REG_LCD_PS = (0 << 16) | (stnH+jzfb.vsw+jzfb.efw+jzfb.bfw);
-
- break;
-
- case MODE_TFT_GEN:
- case MODE_TFT_SHARP:
- case MODE_TFT_CASIO:
- case MODE_TFT_SAMSUNG:
- case MODE_8BIT_SERIAL_TFT:
- case MODE_TFT_18BIT:
- REG_LCD_VSYNC = (0 << 16) | jzfb.vsw;
- REG_LCD_HSYNC = (0 << 16) | jzfb.hsw;
-#if defined(CONFIG_JZLCD_INNOLUX_AT080TN42)
- REG_LCD_DAV = (0 << 16) | ( jzfb.h );
-#else
- REG_LCD_DAV =((jzfb.vsw+jzfb.bfw) << 16) | (jzfb.vsw +jzfb.bfw+jzfb.h);
-#endif /*#if defined(CONFIG_JZLCD_INNOLUX_AT080TN42)*/
- REG_LCD_DAH = ((jzfb.hsw + jzfb.blw) << 16) | (jzfb.hsw + jzfb.blw + jzfb.w );
- REG_LCD_VAT = (((jzfb.blw + jzfb.w + jzfb.elw + jzfb.hsw)) << 16) \
- | (jzfb.vsw + jzfb.bfw + jzfb.h + jzfb.efw);
- break;
- }
-
- switch (jzfb.cfg & MODE_MASK) {
- case MODE_TFT_SAMSUNG:
- {
- unsigned int total, tp_s, tp_e, ckv_s, ckv_e;
- unsigned int rev_s, rev_e, inv_s, inv_e;
-
- pclk = val * (jzfb.w + jzfb.hsw + jzfb.elw + jzfb.blw) *
- (jzfb.h + jzfb.vsw + jzfb.efw + jzfb.bfw); /* Pixclk */
-
- total = jzfb.blw + jzfb.w + jzfb.elw + jzfb.hsw;
- tp_s = jzfb.blw + jzfb.w + 1;
- tp_e = tp_s + 1;
- /* ckv_s = tp_s - jz_clocks.pixclk/(1000000000/4100); */
- ckv_s = tp_s - pclk/(1000000000/4100);
- ckv_e = tp_s + total;
- rev_s = tp_s - 11; /* -11.5 clk */
- rev_e = rev_s + total;
- inv_s = tp_s;
- inv_e = inv_s + total;
- REG_LCD_CLS = (tp_s << 16) | tp_e;
- REG_LCD_PS = (ckv_s << 16) | ckv_e;
- REG_LCD_SPL = (rev_s << 16) | rev_e;
- REG_LCD_REV = (inv_s << 16) | inv_e;
- jzfb.cfg |= STFT_REVHI | STFT_SPLHI;
- break;
- }
- case MODE_TFT_SHARP:
- {
- unsigned int total, cls_s, cls_e, ps_s, ps_e;
- unsigned int spl_s, spl_e, rev_s, rev_e;
- total = jzfb.blw + jzfb.w + jzfb.elw + jzfb.hsw;
-#if !defined(CONFIG_JZLCD_INNOLUX_AT080TN42)
- spl_s = 1;
- spl_e = spl_s + 1;
- cls_s = 0;
- cls_e = total - 60; /* > 4us (pclk = 80ns) */
- ps_s = cls_s;
- ps_e = cls_e;
- rev_s = total - 40; /* > 3us (pclk = 80ns) */
- rev_e = rev_s + total;
- jzfb.cfg |= STFT_PSHI;
-#else /*#if defined(CONFIG_JZLCD_INNOLUX_AT080TN42)*/
- spl_s = total - 5; /* LD */
- spl_e = total -3;
- cls_s = 32; /* CKV */
- cls_e = 145;
- ps_s = 0; /* OEV */
- ps_e = 45;
- rev_s = 0; /* POL */
- rev_e = 0;
-#endif /*#if defined(CONFIG_JZLCD_INNOLUX_AT080TN42)*/
- REG_LCD_SPL = (spl_s << 16) | spl_e;
- REG_LCD_CLS = (cls_s << 16) | cls_e;
- REG_LCD_PS = (ps_s << 16) | ps_e;
- REG_LCD_REV = (rev_s << 16) | rev_e;
- break;
- }
- case MODE_TFT_CASIO:
- break;
- }
-
- /* Configure the LCD panel */
- REG_LCD_CFG = jzfb.cfg;
-
- /* Timing setting */
- __cpm_stop_lcd();
-
- val = jzfb.fclk; /* frame clk */
- if ( (jzfb.cfg & MODE_MASK) != MODE_8BIT_SERIAL_TFT) {
- pclk = val * (jzfb.w + jzfb.hsw + jzfb.elw + jzfb.blw) *
- (jzfb.h + jzfb.vsw + jzfb.efw + jzfb.bfw); /* Pixclk */
- }
- else {
- /* serial mode: Hsync period = 3*Width_Pixel */
- pclk = val * (jzfb.w*3 + jzfb.hsw + jzfb.elw + jzfb.blw) *
- (jzfb.h + jzfb.vsw + jzfb.efw + jzfb.bfw); /* Pixclk */
- }
-
- if (((jzfb.cfg & MODE_MASK) == MODE_STN_COLOR_SINGLE) ||
- ((jzfb.cfg & MODE_MASK) == MODE_STN_COLOR_DUAL))
- pclk = (pclk * 3);
-
- if (((jzfb.cfg & MODE_MASK) == MODE_STN_COLOR_SINGLE) ||
- ((jzfb.cfg & MODE_MASK) == MODE_STN_COLOR_DUAL) ||
- ((jzfb.cfg & MODE_MASK) == MODE_STN_MONO_SINGLE) ||
- ((jzfb.cfg & MODE_MASK) == MODE_STN_MONO_DUAL))
- pclk = pclk >> ((jzfb.cfg & STN_DAT_PINMASK) >> 4);
-
- if (((jzfb.cfg & MODE_MASK) == MODE_STN_COLOR_DUAL) ||
- ((jzfb.cfg & MODE_MASK) == MODE_STN_MONO_DUAL))
- pclk >>= 1;
-
- pll_div = ( REG_CPM_CPCCR & CPM_CPCCR_PCS ); /* clock source,0:pllout/2 1: pllout */
- pll_div = pll_div ? 1 : 2 ;
- val = ( __cpm_get_pllout()/pll_div ) / pclk;
- val--;
- if ( val > 0x1ff ) {
- printf("CPM_LPCDR too large, set it to 0x1ff\n");
- val = 0x1ff;
- }
- __cpm_set_pixdiv(val);
-
- val = pclk * 3 ; /* LCDClock > 2.5*Pixclock */
- if ( val > 150000000 ) {
- printf("Warning: LCDClock=%d\n, LCDClock must less or equal to 150MHz.\n", val);
- printf("Change LCDClock to 150MHz\n");
- val = 150000000;
- }
- val = ( __cpm_get_pllout()/pll_div ) / val;
- val--;
- if ( val > 0x1f ) {
- printf("CPM_CPCCR.LDIV too large, set it to 0x1f\n");
- val = 0x1f;
- }
- __cpm_set_ldiv( val );
- REG_CPM_CPCCR |= CPM_CPCCR_CE ; /* update divide */
-
- __cpm_start_lcd();
- udelay(1000);
-
- REG_LCD_DA0 = fbi->fdadr0; /* frame descripter*/
-
- if (((jzfb.cfg & MODE_MASK) == MODE_STN_COLOR_DUAL) ||
- ((jzfb.cfg & MODE_MASK) == MODE_STN_MONO_DUAL))
- REG_LCD_DA1 = fbi->fdadr1; /* frame descripter*/
-
- return 0;
-}
-
projects / openwrt / staging / mkresin.git / blobdiff