main.cpp

00001 #include "test_env.h"
00002 #include "mbed.h"
00003 #include "spifi_rom_api.h"
00004 
00005 __attribute__((section("SPIFI_MEM"))) const unsigned char cube_image[] = {
00006 137,80,78,71,13,10,26,10,0,0,0,13,73,72,68,82,
00007 0,0,0,150,0,0,0,200,8,2,0,0,0,133,231,143,
00008 50,0,0,0,1,115,82,71,66,0,174,206,28,233,0,0,
00009 0,4,103,65,77,65,0,0,177,143,11,252,97,5,0,0,
00010 0,9,112,72,89,115,0,0,14,195,0,0,14,195,1,199,
00011 111,168,100,0,0,156,193,73,68,65,84,120,94,236,253,103,
00012 124,27,233,125,54,140,14,48,24,0,51,24,244,94,9,246,
00013 0,0,0,0,73,69,78,68,174,66,96,130};
00014 
00015 int cube_image_sz = sizeof(cube_image);
00016 
00017 const unsigned char cube_image_ref[] = {
00018 137,80,78,71,13,10,26,10,0,0,0,13,73,72,68,82,
00019 0,0,0,150,0,0,0,200,8,2,0,0,0,133,231,143,
00020 50,0,0,0,1,115,82,71,66,0,174,206,28,233,0,0,
00021 0,4,103,65,77,65,0,0,177,143,11,252,97,5,0,0,
00022 0,9,112,72,89,115,0,0,14,195,0,0,14,195,1,199,
00023 111,168,100,0,0,156,193,73,68,65,84,120,94,236,253,103,
00024 124,27,233,125,54,140,14,48,24,0,51,24,244,94,9,246,
00025 0,0,0,0,73,69,78,68,174,66,96,130};
00026 
00027 int cube_image_ref_sz = sizeof(cube_image_ref);
00028 
00029 /*
00030  * The SPIFI_ROM_PTR (0x1FFF1FF8) points to an area where the pointers to
00031  * different drivers in ROM are stored.
00032  */
00033 typedef struct {
00034    /*const*/ unsigned p_usbd;     // USBROMD
00035    /*const*/ unsigned p_clib;
00036    /*const*/ unsigned p_cand;
00037    /*const*/ unsigned p_pwrd;     // PWRROMD
00038    /*const*/ unsigned p_promd;    // DIVROMD
00039    /*const*/ SPIFI_RTNS *pSPIFID; // SPIFIROMD
00040    /*const*/ unsigned p_dev3;
00041    /*const*/ unsigned p_dev4;
00042 } ROM;
00043 
00044 #define ROM_DRIVERS_PTR ((ROM *)(*((unsigned int *)SPIFI_ROM_PTR)))
00045 #define IS_ADDR_IN_SPIFI(__addr)  ( (((uint32_t)(__addr)) & 0xff000000) == SPIFI_MEM_BASE )
00046 #define IS_ADDR_IN_IFLASH(__addr) ( (((uint32_t)(__addr)) & 0xff000000) == 0x10000000 )
00047 
00048 static void initialize_spifi(void)
00049 {
00050   SPIFIobj* obj = (SPIFIobj*)malloc(sizeof(SPIFIobj));
00051   if (obj == NULL) {
00052     // Failed to allocate memory for ROM data
00053     notify_completion(false);
00054   }
00055 
00056   // Turn on SPIFI block as it is disabled on reset
00057   LPC_SC->PCONP |= 0x00010000;
00058 
00059   // pinsel for SPIFI
00060   LPC_IOCON->P2_7 = 5; /* SPIFI_CSN @ P2.7 */
00061   LPC_IOCON->P0_22 = 5; /* SPIFI_CLK @ P0.22 */
00062   LPC_IOCON->P0_15 = 5; /* SPIFI_IO2 @ P0.15 */
00063   LPC_IOCON->P0_16 = 5; /* SPIFI_IO3 @ P0.16 */
00064   LPC_IOCON->P0_17 = 5; /* SPIFI_IO1 @ P0.17 */
00065   LPC_IOCON->P0_18 = 5; /* SPIFI_IO0 @ P0.18 */
00066 
00067   uint32_t spifi_clk_div = (*((volatile uint32_t*)0x400FC1B4)) & 0x1f;
00068   uint32_t spifi_clk_mhz = (SystemCoreClock / spifi_clk_div) / 1000000;
00069 
00070   const SPIFI_RTNS* _spifi = ROM_DRIVERS_PTR->pSPIFID;
00071 
00072   /* Typical time tCS is 20 ns min, we give 200 ns to be on safer side */
00073   int rc = _spifi->spifi_init (obj, spifi_clk_mhz/5, S_FULLCLK+S_RCVCLK, spifi_clk_mhz);
00074   if (rc) {
00075     // Failed to initialize SPIFI
00076     notify_completion(false);
00077   }
00078 }
00079 
00080 int main() {
00081 
00082     initialize_spifi();
00083 
00084     // Make sure that cube_image is placed in SPIFI
00085     if (!IS_ADDR_IN_SPIFI(cube_image)) {
00086         notify_completion(false);
00087     }
00088 
00089     // Make sure that cube_image_ref is in IFLASH
00090     if (IS_ADDR_IN_SPIFI(cube_image_ref)) {
00091         notify_completion(false);
00092     }
00093 
00094     // Compare content
00095     if (cube_image_sz != cube_image_ref_sz) {
00096         notify_completion(false);
00097     } else {
00098       int i = 0;
00099       for (; i < cube_image_sz; i++) {
00100         if (cube_image[i] != cube_image_ref[i]) {
00101             notify_completion(false);
00102         }
00103       }
00104     }
00105 
00106     notify_completion(true);
00107 }