main.cpp

00001 #include "test_env.h"
00002 #include "mbed.h"
00003 #include "spifi_rom_api.h"
00004 
00005 extern const unsigned char splash_image1[]; extern int splash_image1_sz;
00006 extern const unsigned char splash_image2[]; extern int splash_image2_sz;
00007 extern const unsigned char splash_image3[]; extern int splash_image3_sz;
00008 extern const unsigned char splash_image4[]; extern int splash_image4_sz;
00009 extern const unsigned char splash_image5[]; extern int splash_image5_sz;
00010 extern const unsigned char splash_image6[]; extern int splash_image6_sz;
00011 extern const unsigned char splash_image7[]; extern int splash_image7_sz;
00012 extern const unsigned char splash_image8[]; extern int splash_image8_sz;
00013 extern const unsigned char splash_image9[]; extern int splash_image9_sz;
00014 extern const unsigned char splash_image10[]; extern int splash_image10_sz;
00015 extern const unsigned char splash_image11[]; extern int splash_image11_sz;
00016 extern const unsigned char splash_image12[]; extern int splash_image12_sz;
00017 extern const unsigned char splash_image13[]; extern int splash_image13_sz;
00018 extern const unsigned char splash_image14[]; extern int splash_image14_sz;
00019 extern const unsigned char splash_image15[]; extern int splash_image15_sz;
00020 
00021 /*
00022  * The SPIFI_ROM_PTR (0x1FFF1FF8) points to an area where the pointers to
00023  * different drivers in ROM are stored.
00024  */
00025 typedef struct {
00026    /*const*/ unsigned p_usbd;     // USBROMD
00027    /*const*/ unsigned p_clib;
00028    /*const*/ unsigned p_cand;
00029    /*const*/ unsigned p_pwrd;     // PWRROMD
00030    /*const*/ unsigned p_promd;    // DIVROMD
00031    /*const*/ SPIFI_RTNS *pSPIFID; // SPIFIROMD
00032    /*const*/ unsigned p_dev3;
00033    /*const*/ unsigned p_dev4;
00034 } ROM;
00035 
00036 #define ROM_DRIVERS_PTR ((ROM *)(*((unsigned int *)SPIFI_ROM_PTR)))
00037 #define IS_ADDR_IN_SPIFI(__addr)  ( (((uint32_t)(__addr)) & 0xff000000) == SPIFI_MEM_BASE )
00038 #define IS_ADDR_IN_IFLASH(__addr) ( (((uint32_t)(__addr)) & 0xff000000) == 0x10000000 )
00039 
00040 static void initialize_spifi(void)
00041 {
00042   SPIFIobj* obj = (SPIFIobj*)malloc(sizeof(SPIFIobj));
00043   if (obj == NULL) {
00044     // Failed to allocate memory for ROM data
00045     notify_completion(false);
00046   }
00047 
00048   // Turn on SPIFI block as it is disabled on reset
00049   LPC_SC->PCONP |= 0x00010000;
00050 
00051   // pinsel for SPIFI
00052   LPC_IOCON->P2_7 = 5; /* SPIFI_CSN @ P2.7 */
00053   LPC_IOCON->P0_22 = 5; /* SPIFI_CLK @ P0.22 */
00054   LPC_IOCON->P0_15 = 5; /* SPIFI_IO2 @ P0.15 */
00055   LPC_IOCON->P0_16 = 5; /* SPIFI_IO3 @ P0.16 */
00056   LPC_IOCON->P0_17 = 5; /* SPIFI_IO1 @ P0.17 */
00057   LPC_IOCON->P0_18 = 5; /* SPIFI_IO0 @ P0.18 */
00058 
00059   uint32_t spifi_clk_div = (*((volatile uint32_t*)0x400FC1B4)) & 0x1f;
00060   uint32_t spifi_clk_mhz = (SystemCoreClock / spifi_clk_div) / 1000000;
00061 
00062   const SPIFI_RTNS* _spifi = ROM_DRIVERS_PTR->pSPIFID;
00063 
00064   /* Typical time tCS is 20 ns min, we give 200 ns to be on safer side */
00065   int rc = _spifi->spifi_init (obj, spifi_clk_mhz/5, S_FULLCLK+S_RCVCLK, spifi_clk_mhz);
00066   if (rc) {
00067     // Failed to initialize SPIFI
00068     notify_completion(false);
00069   }
00070 }
00071 
00072 int main() {
00073 
00074     initialize_spifi();
00075 
00076     // Make sure that most files are placed in IFLASH
00077     if (IS_ADDR_IN_SPIFI(splash_image1)  ||
00078         IS_ADDR_IN_SPIFI(splash_image2)  ||
00079         IS_ADDR_IN_SPIFI(splash_image3)  ||
00080         IS_ADDR_IN_SPIFI(splash_image4)  ||
00081         IS_ADDR_IN_SPIFI(splash_image5)  ||
00082         IS_ADDR_IN_SPIFI(splash_image6)  ||
00083         IS_ADDR_IN_SPIFI(splash_image7)  ||
00084         IS_ADDR_IN_SPIFI(splash_image8)  ||
00085         IS_ADDR_IN_SPIFI(splash_image9)  ||
00086         IS_ADDR_IN_SPIFI(splash_image10) ||
00087         IS_ADDR_IN_SPIFI(splash_image11) ||
00088         IS_ADDR_IN_SPIFI(splash_image12) ||
00089         IS_ADDR_IN_SPIFI(splash_image13) ||
00090         IS_ADDR_IN_SPIFI(splash_image14)) {
00091         notify_completion(false);
00092     }
00093 
00094     // Make sure that splash_image15 is placed in SPIFI
00095     if (!IS_ADDR_IN_SPIFI(splash_image15)) {
00096         notify_completion(false);
00097     }
00098 
00099     notify_completion(true);
00100 }