removed commented out CFLAGS setting (probably committed by mistake)

[proxmark3-svn] / bootrom / bootrom.c

diff --git a/bootrom/bootrom.c b/bootrom/bootrom.c
index 05f8c8e50742f8e56944d69d2e001dd0ab4c9cc9..6b0ff532800be0129b364d9413c22f3fdf84001b 100644 (file)
--- a/bootrom/bootrom.c
+++ b/bootrom/bootrom.c
@@ -29,21 +29,22 @@ static void ConfigClocks(void)
                (1<<AT91C_ID_PWMC)      |
                (1<<AT91C_ID_UDP);
 
                (1<<AT91C_ID_PWMC)      |
                (1<<AT91C_ID_UDP);
 

-       // worst case scenario, with 16Mhz xtal startup delay is 14.5ms
-       // with a slow clock running at it worst case (max) frequency of 42khz
-       // max startup delay = (14.5ms*42k)/8 = 76 = 0x4C round up to 0x50
+       // worst case scenario, with MAINCK = 16Mhz xtal, startup delay is 1.4ms
+       // if SLCK slow clock runs at its worst case (max) frequency of 42khz
+       // max startup delay = (1.4ms*42k)/8 = 7.356 so round up to 8

 
        // enable main oscillator and set startup delay
     AT91C_BASE_PMC->PMC_MOR =
 
        // enable main oscillator and set startup delay
     AT91C_BASE_PMC->PMC_MOR =

-       PMC_MAIN_OSC_ENABLE |
-        PMC_MAIN_OSC_STARTUP_DELAY(0x50);
+        AT91C_CKGR_MOSCEN |
+        PMC_MAIN_OSC_STARTUP_DELAY(8);

 
        // wait for main oscillator to stabilize
 
        // wait for main oscillator to stabilize

-       while ( !(AT91C_BASE_PMC->PMC_SR & PMC_MAIN_OSC_STABILIZED) )
+       while ( !(AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MOSCS) )

                ;
 
                ;
 

-    // minimum PLL clock frequency is 80 MHz in range 00 (96 here so okay)
-    // frequency is crystal * multiplier / divisor = 16Mhz * 12 / 2 = 96Mhz
+    // PLL output clock frequency in range  80 - 160 MHz needs CKGR_PLL = 00
+    // PLL output clock frequency in range 150 - 180 MHz needs CKGR_PLL = 10
+    // PLL output is MAINCK * multiplier / divisor = 16Mhz * 12 / 2 = 96Mhz

     AT91C_BASE_PMC->PMC_PLLR =
        PMC_PLL_DIVISOR(2) |
                PMC_PLL_COUNT_BEFORE_LOCK(0x50) |
     AT91C_BASE_PMC->PMC_PLLR =
        PMC_PLL_DIVISOR(2) |
                PMC_PLL_COUNT_BEFORE_LOCK(0x50) |


@@ -52,23 +53,23 @@ static void ConfigClocks(void)
                PMC_PLL_USB_DIVISOR(1);
 
        // wait for PLL to lock
                PMC_PLL_USB_DIVISOR(1);
 
        // wait for PLL to lock

-       while ( !(AT91C_BASE_PMC->PMC_SR & PMC_MAIN_OSC_PLL_LOCK) )
+       while ( !(AT91C_BASE_PMC->PMC_SR & AT91C_PMC_LOCK) )

                ;
 
        // we want a master clock (MCK) to be PLL clock / 2 = 96Mhz / 2 = 48Mhz
                ;
 
        // we want a master clock (MCK) to be PLL clock / 2 = 96Mhz / 2 = 48Mhz

-       // as per datasheet, this register must be programmed in two operations
+       // datasheet recommends that this register is programmed in two operations

        // when changing to PLL, program the prescaler first then the source
        // when changing to PLL, program the prescaler first then the source

-    AT91C_BASE_PMC->PMC_MCKR = PMC_CLK_PRESCALE_DIV_2;
+    AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_PRES_CLK_2;

 
        // wait for main clock ready signal
 
        // wait for main clock ready signal

-       while ( !(AT91C_BASE_PMC->PMC_SR & PMC_MAIN_OSC_MCK_READY) )
+       while ( !(AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY) )

                ;
 
        // set the source to PLL
                ;
 
        // set the source to PLL

-    AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_CSS_PLL_CLK | PMC_CLK_PRESCALE_DIV_2;
+    AT91C_BASE_PMC->PMC_MCKR = AT91C_PMC_PRES_CLK_2 | AT91C_PMC_CSS_PLL_CLK;

 
        // wait for main clock ready signal
 
        // wait for main clock ready signal

-       while ( !(AT91C_BASE_PMC->PMC_SR & PMC_MAIN_OSC_MCK_READY) )
+       while ( !(AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MCKRDY) )

                ;
 }
 
                ;
 }
 


@@ -128,9 +129,9 @@ void UsbPacketReceived(uint8_t *packet, int len)
 
             uint32_t sr;
 
 
             uint32_t sr;
 

-            while(!((sr = AT91C_BASE_EFC0->EFC_FSR) & MC_FLASH_STATUS_READY))
+            while(!((sr = AT91C_BASE_EFC0->EFC_FSR) & AT91C_MC_FRDY))

                 ;
                 ;

-            if(sr & (MC_FLASH_STATUS_LOCKE | MC_FLASH_STATUS_PROGE)) {
+            if(sr & (AT91C_MC_LOCKE | AT91C_MC_PROGE)) {

                    dont_ack = 1;
                     c->cmd = CMD_NACK;
                     UsbSendPacket(packet, len);
                    dont_ack = 1;
                     c->cmd = CMD_NACK;
                     UsbSendPacket(packet, len);


@@ -257,7 +258,7 @@ void BootROM(void)
     LED_A_OFF();
 
        AT91C_BASE_EFC0->EFC_FMR =
     LED_A_OFF();
 
        AT91C_BASE_EFC0->EFC_FMR =

-               MC_FLASH_MODE_FLASH_WAIT_STATES(1) |
+               AT91C_MC_FWS_1FWS |

                MC_FLASH_MODE_MASTER_CLK_IN_MHZ(48);
 
     // Initialize all system clocks
                MC_FLASH_MODE_MASTER_CLK_IN_MHZ(48);
 
     // Initialize all system clocks