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lpc43xx: Spi make work

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This commit is contained in:
Ilya Averyanov
2015-09-02 08:31:08 -06:00
committed by Gregory Nutt
parent f2b5f05124
commit fdfaf9aa09
1 changed files with 6 additions and 24 deletions
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arch/arm/src/lpc43xx/lpc43_spi.c
+6 -24
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@@ -54,8 +54,7 @@
#include "up_arch.h"
#include "chip.h"
#include "lpc43_syscon.h"
#include "lpc43_pinconn.h"
#include "lpc43_pinconfig.h"
#include "lpc43_spi.h"
#ifdef CONFIG_LPC43_SPI
@@ -545,36 +544,19 @@ static void spi_recvblock(FAR struct spi_dev_s *dev, FAR void *buffer, size_t nw
FAR struct spi_dev_s *lpc43_spiinitialize(int port)
{
FAR struct lpc43_spidev_s *priv = &g_spidev;
irqstate_t flags;
uint32_t regval;
/* Configure multiplexed pins as connected on the board. Chip select
* pins must be configured by board-specific logic. All SPI pins and
* one SPI1 pin (SCK) have multiple, alternative pin selection.
* one SPI1 pin (SCK) have multiple, alternative pin selections.
* Definitions in the board.h file must be provided to resolve the
* board-specific pin configuration like:
*
* #define GPIO_SPI_SCK GPIO_SPI_SCK_1
* #define PINCONF_SPI_SCK PINCONF_SPI_SCK_1
*/
flags = irqsave();
lpc43_configgpio(GPIO_SPI_SCK);
lpc43_configgpio(GPIO_SPI_MISO);
lpc43_configgpio(GPIO_SPI_MOSI);
/* Configure clocking */
regval = getreg32(LPC43_SYSCON_PCLKSEL0);
regval &= ~SYSCON_PCLKSEL0_SPI_MASK;
regval |= (SPI_PCLKSET_DIV << SYSCON_PCLKSEL0_SPI_SHIFT);
putreg32(regval, LPC43_SYSCON_PCLKSEL0);
/* Enable peripheral clocking to SPI and SPI1 */
regval = getreg32(LPC43_SYSCON_PCONP);
regval |= SYSCON_PCONP_PCSPI;
putreg32(regval, LPC43_SYSCON_PCONP);
irqrestore(flags);
lpc43_pin_config(PINCONF_SPI_SCK);
lpc43_pin_config(PINCONF_SPI_MISO);
lpc43_pin_config(PINCONF_SPI_MOSI);
/* Configure 8-bit SPI mode and master mode */