packages/devs/ipu/arm/imx/v1_0/src/ipu_common.c

   1 /***************************************************************************
   2 *
   3 *                                                     IPU_COMMON.C
   4 *
   5 * Copyright 2005-2006 by Freescale Semiconductor, Inc.
   6 * All modifications are confidential and proprietary information
   7 * of Freescale Semiconductor, Inc. ALL RIGHTS RESERVED.
   8 *
   9 ***************************************************************************
  10 *
  11 * Author(s)             :               Ray Sun-B17777 <Yanfei.Sun@freescale.com>
  12 * Create Date   :               2008-11-10
  13 * Description   :               common functions definition for IPU API.
  14 *
  15 ***************************************************************************/
  16 #include <cyg/io/ipu_common.h>
  17 #ifdef CYGPKG_REDBOOT
  18 #include <redboot.h>
  19 #endif
  20 #include <cyg/io/flash.h>
  21 #ifdef CYGSEM_REDBOOT_FLASH_CONFIG
  22 #include <flash_config.h>
  23 #endif
  24 #ifdef CYGOPT_REDBOOT_FIS
  25 #include <fis.h>
  26 #endif
  27 #include CYGBLD_HAL_PLATFORM_H
  28
  29 /*
  30 * write bit fields of special IPU regs
  31 */
  32 void ipu_write_field(unsigned int id_addr, unsigned int id_mask, unsigned int data)
  33 {
  34         unsigned int rdata;
  35
  36         id_addr += IPU_CTRL_BASE_ADDR;
  37         rdata = readl(id_addr);
  38         rdata &= ~id_mask;
  39         rdata |= (data * (id_mask & -id_mask)) & id_mask;
  40         writel(rdata, id_addr);
  41 }
  42
  43 /*
  44 *       enable ipu display
  45 */
  46 void ipu_enable_display(void)
  47 {
  48         //enable DI0 (display interface 1)
  49         ipu_write_field(IPU_IPU_CONF__DP_EN, 1);
  50         ipu_write_field(IPU_IPU_CONF__DC_EN, 1);
  51         ipu_write_field(IPU_IPU_CONF__DMFC_EN, 1);
  52         ipu_write_field(IPU_IPU_CONF__DI0_EN, 1);
  53         ipu_write_field(IPU_IPU_CONF__DI1_EN, 1);
  54 #ifdef CYGPKG_HAL_ARM_MX51_3STACK
  55         ipu_write_field(IPU_IPU_CONF__CSI1_EN, 1);
  56 #endif
  57 }
  58
  59 /*
  60 *       disable ipu display
  61 */
  62 void ipu_disable_display(void)
  63 {
  64         ipu_write_field(IPU_IPU_CONF__DI0_EN, 0);
  65         ipu_write_field(IPU_IPU_CONF__DI1_EN, 0);
  66         ipu_write_field(IPU_IPU_CONF__DP_EN, 0);
  67         ipu_write_field(IPU_IPU_CONF__DC_EN, 0);
  68         ipu_write_field(IPU_IPU_CONF__DMFC_EN, 0);
  69         ipu_write_field(IPU_IPU_CONF__IC_EN, 0);
  70 #ifdef CYGPKG_HAL_ARM_MX51_3STACK
  71         ipu_write_field(IPU_IPU_CONF__CSI0_EN, 0);
  72         ipu_write_field(IPU_IPU_CONF__CSI1_EN, 0);
  73         ipu_write_field(IPU_IPU_CONF__SMFC_EN, 0);
  74 #endif
  75         ipu_write_field(IPU_IC_CONF__PP_EN, 0);
  76         ipu_write_field(IPU_IC_CONF__PRPVF_EN, 0);
  77         ipu_write_field(IPU_IC_CONF__PRPENC_EN, 0);
  78 }
  79
  80 #ifdef CYGHWR_MX51_LCD_LOGO
  81 static display_buffer_info_t display_buffer;
  82
  83 /*!
  84 * load the logo from nand flash to memory.
  85 */
  86 static bool do_logo_load(void)
  87 {
  88         void *fis_addr;
  89         int ret = 0xFF;
  90         void *err_addr;
  91         unsigned int logo_size;
  92         struct fis_image_desc *img;
  93
  94         /* Read the logo from storage media */
  95         if ((img = fis_lookup("logo", NULL)) == NULL) {
  96                 diag_printf("No logo partition found in the fis table, logo not loaded\n");
  97                 return false;
  98         }
  99
 100         fis_addr = (void *)img->flash_base;
 101         logo_size = img->size;
 102         ret = FLASH_READ(fis_addr, DISPLAY_BUFFER_ADDR, logo_size, &err_addr);
 103         if (ret != 0) {
 104                 diag_printf("Loading logo from FLASH to MEMORY failed. error code: %d", ret);
 105         }
 106         return true;
 107 }
 108
 109 /*!
 110 * this function is used to reset ipu by SRC(system reset controller)
 111 * the return value should be negative if resetting timeout
 112 */
 113 #define IPU_RESET       (1 << 3)
 114 static int ipu_sw_reset(int timeout)
 115 {
 116         int tmpVal;
 117
 118         tmpVal = readl(SRC_BASE_ADDR);
 119         writel(tmpVal | IPU_RESET, SRC_BASE_ADDR);
 120         while (timeout > 0) {
 121                 if (!(readl(SRC_BASE_ADDR) & IPU_RESET))
 122                         return 0;
 123                 timeout--;
 124         }
 125         diag_printf("Error: ipu software reset timed out\n");
 126         return -1;
 127 }
 128
 129 static void redboot_fastlogo_display(void)
 130 {
 131         bool fastlogo_feature_enable;
 132         int ok;
 133
 134         ok = CYGACC_CALL_IF_FLASH_CFG_OP(CYGNUM_CALL_IF_FLASH_CFG_GET,
 135                                                                         "fastlogo_enable", &fastlogo_feature_enable, CONFIG_BOOL);
 136
 137         if (ok && fastlogo_feature_enable) {
 138                 display_buffer.startAddr = (CYG_ADDRESS)DISPLAY_BUFFER_ADDR;
 139                 display_buffer.width = 640;
 140                 display_buffer.height = 480;
 141                 display_buffer.dataFormat = RGB565;
 142                 display_buffer.bpp = 16; // bit per pixel
 143                 display_buffer.channel = 28;
 144
 145                 ipu_sw_reset(0x10000);
 146                 if (!do_logo_load()) {
 147                         return;
 148                 }
 149                 mxc_ipu_iomux_config();
 150                 //lcd_backlit_on();
 151                 //lcd_config();
 152                 fastlogo_init(&display_buffer);
 153                 fastlogo_dma();
 154                 fastlogo_dmfc();
 155                 fastlogo_dc();
 156                 fastlogo_di();
 157                 ipu_enable_display();
 158                 ipu_idmac_channel_buf_ready(display_buffer.channel, 0);
 159         }
 160 }
 161
 162 #ifdef CYGPKG_REDBOOT
 163 RedBoot_init(redboot_fastlogo_display, RedBoot_INIT_SECOND);
 164 #endif
 165
 166 RedBoot_config_option("Enable fast logo display at boot",
 167                                         fastlogo_enable,
 168                                         ALWAYS_ENABLED, true,
 169                                         CONFIG_BOOL,
 170                                         false
 171         );
 172 #endif