mirror of https://gerrit.osmocom.org/simtrace2
firmware: add definition for main osc bypass when using external osc
Add new board.h definition BOARD_MAINOSC_BYPASS to configure the clock module to use an external oscillator rather than a crystal. The qmod board is one such board. Change-Id: If62f55cd4c8b0cf758534f09d25a9bcb028814a7
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@ -147,7 +147,7 @@ extern WEAK void LowLevelInit( void )
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}
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*/
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#ifndef qmod
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#ifndef BOARD_MAINOSC_BYPASS
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/* Initialize main oscillator */
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if ( !(PMC->CKGR_MOR & CKGR_MOR_MOSCSEL) )
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{
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@ -165,11 +165,11 @@ extern WEAK void LowLevelInit( void )
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timeout = 0;
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while (!(PMC->PMC_SR & PMC_SR_MOSCSELS) && (timeout++ < CLOCK_TIMEOUT));
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#else
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/* QMOD has external 12MHz clock source */
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/* Board has external clock, not a crystal oscillator */
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PIOB->PIO_PDR = (1 << 9);
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PIOB->PIO_PUDR = (1 << 9);
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PIOB->PIO_PPDDR = (1 << 9);
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PMC->CKGR_MOR = CKGR_MOR_KEY(0x37) | CKGR_MOR_MOSCRCEN | CKGR_MOR_MOSCXTBY| CKGR_MOR_MOSCSEL;
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PMC->CKGR_MOR = CKGR_MOR_KEY(0x37) | CKGR_MOR_MOSCRCEN | CKGR_MOR_MOSCXTBY | CKGR_MOR_MOSCSEL;
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#endif
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/* disable the red LED after main clock initialization */
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@ -25,6 +25,8 @@
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#define BOARD_MAINOSC 12000000
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/** desired main clock frequency (in Hz, based on BOARD_MAINOSC) */
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#define BOARD_MCK 58000000 // 18.432 * 29 / 6
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/** board has external clock, not crystal */
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#define BOARD_MAINOSC_BYPASS
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/** MCU pin connected to red LED */
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#define PIO_LED_RED PIO_PA17
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@ -35,7 +37,7 @@
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/** green LED pin definition */
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#define PIN_LED_GREEN {PIO_LED_GREEN, PIOA, ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT}
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/** LEDs pin definition */
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#define PINS_LEDS PIN_LED_RED, PIN_LED_GREEN
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#define PINS_LEDS PIN_LED_RED, PIN_LED_GREEN
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/** index for red LED in LEDs pin definition array */
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#define LED_NUM_RED 0
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/** index for green LED in LEDs pin definition array */
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