X-Git-Url: https://hackdaworld.org/gitweb/?p=my-code%2Farm.git;a=blobdiff_plain;f=betty%2Ffwflash.c;h=30237891ea4da610d72400b5c1855c12380dbe45;hp=4fa0479b02c9783e7d2807d06c6ea20368d956ce;hb=ed474ffa00e2e35babccb09d039a7a65939097a0;hpb=d24fd4a34d026918724fad1ddbb0da1de9d28c63 diff --git a/betty/fwflash.c b/betty/fwflash.c index 4fa0479..3023789 100644 --- a/betty/fwflash.c +++ b/betty/fwflash.c @@ -22,7 +22,7 @@ #define BANK2 0x82000000 #define BANK_SIZE 0x00100000 #define BOOTLOADER 0x7fffe000 -#define BL_SIZE 0x00000800 +#define BL_SIZE 0x00002000 /* flash cmd addresses - flash[0-18] <--> arm[1-19]*/ #define B0F555 (*((volatile unsigned long *)(BANK0|0xaaa))) // 0x555 @@ -54,12 +54,24 @@ void mmap_init(u8 memtype) { MEMMAP=memtype; } +void pll_init(void) { + + /* configuration */ + PLLCFG=0x02; // multiplier = 2 + PLLCON=0x03; // enable and set as clk source for the lpc + /* feed sequence */ + PLLFEED=0xaa; + PLLFEED=0x55; + /* wait for lock */ + while(!(PLLSTAT&(1<<10))) + continue; +} + void uart0_init(void) { PINSEL0=0x05; // pin select -> tx, rx UART0_FCR=0x07; // enable fifo UART0_LCR=0x83; // set dlab + word length - //UART0_DLL=0x10; // br: 9600 @ 10/4 mhz UART0_DLL=0x04; // br: 38400 @ 10/4 mhz UART0_DLM=0x00; UART0_LCR=0x03; // unset dlab @@ -161,6 +173,9 @@ int main(void) { /* memory mapping of interrupt vectors to static ram */ //mmap_init(MMAP_RAM); + + /* pll initialization */ + pll_init(); /* uart initialization */ uart0_init();