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SAMA5D4-EK: NSH should run at 528MHz

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This commit is contained in:
Gregory Nutt 2014-07-02 15:31:52 -06:00
parent 30fc821bc8
commit 596dbc20ef
2 changed files with 4 additions and 2 deletions
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2
arch/arm/src/sama5/chip/sam_pmc.h
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@ -420,7 +420,7 @@
#define PMC_PCR_CMD (1 << 12) /* Bit 12: Command */
#ifdef ATSAMA5D3
# define SAMA5_HAVE_PMC_PCR 1 /* Supports conditional compilation */
# define SAMA5_HAVE_PMC_PCR_DIV 1 /* Supports conditional compilation */
# define PMC_PCR_DIV_SHIFT (16) /* Bits 16-17: Divisor Value */
# define PMC_PCR_DIV_MASK (3 << PMC_PCR_DIV_SHIFT)
# define PMC_PCR_DIV1 (0 << PMC_PCR_DIV_SHIFT) /* Peripheral clock is MCK */

4
arch/arm/src/sama5/sam_twi.c
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@ -1169,6 +1169,8 @@ static void twi_hw_initialize(struct twi_dev_s *priv, unsigned int pid,
mck = BOARD_MCK_FREQUENCY;
#ifdef SAMA5_HAVE_PMC_PCR_DIV
/* Select the optimal value for the PCR DIV field */
DEBUGASSERT((mck >> 3) <= TWI_MAX_FREQUENCY);
if (mck <= TWI_MAX_FREQUENCY)
{
@ -1193,7 +1195,7 @@ static void twi_hw_initialize(struct twi_dev_s *priv, unsigned int pid,
#else
/* No DIV field in the PCR register */
priv->frequency = mck;
regval = 0;