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