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boards: cxd56xx: Add SPI DMA support to cxd56_gs2200m.c

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Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
This commit is contained in:
Masayuki Ishikawa 2020-05-05 11:23:04 +09:00 committed by Alin Jerpelea
parent 77f15c8b17
commit 65b3accc51
1 changed files with 29 additions and 1 deletions
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30
boards/arm/cxd56xx/common/src/cxd56_gs2200m.c
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@ -51,9 +51,17 @@
#include "cxd56_pinconfig.h"
#include "cxd56_spi.h"
#include "cxd56_dmac.h"
#include "cxd56_gpio.h"
#include "cxd56_gpioint.h"
#define DMA_TXCH (CONFIG_CXD56_DMAC_SPI5_TX_CH)
#define DMA_RXCH (CONFIG_CXD56_DMAC_SPI5_RX_CH)
#define DMA_TXCH_CFG (CXD56_DMA_PERIPHERAL_SPI5_TX)
#define DMA_RXCH_CFG (CXD56_DMA_PERIPHERAL_SPI5_RX)
#define SPI_TX_MAXSIZE (CONFIG_CXD56_DMAC_SPI5_TX_MAXSIZE)
#define SPI_RX_MAXSIZE (CONFIG_CXD56_DMAC_SPI5_RX_MAXSIZE)
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
@ -224,6 +232,8 @@ static void spi_pincontrol(int bus, bool on)
int board_gs2200m_initialize(FAR const char *devpath, int bus)
{
FAR struct spi_dev_s *spi;
DMA_HANDLE hdl;
dma_config_t conf;
wlinfo("Initializing GS2200M..\n");
@ -245,9 +255,27 @@ int board_gs2200m_initialize(FAR const char *devpath, int bus)
return -ENODEV;
}
hdl = cxd56_dmachannel(DMA_TXCH, SPI_TX_MAXSIZE);
if (hdl)
{
conf.channel_cfg = DMA_TXCH_CFG;
conf.dest_width = CXD56_DMAC_WIDTH8;
conf.src_width = CXD56_DMAC_WIDTH8;
cxd56_spi_dmaconfig(bus, CXD56_SPI_DMAC_CHTYPE_TX, hdl, &conf);
}
hdl = cxd56_dmachannel(DMA_RXCH, SPI_RX_MAXSIZE);
if (hdl)
{
conf.channel_cfg = DMA_RXCH_CFG;
conf.dest_width = CXD56_DMAC_WIDTH8;
conf.src_width = CXD56_DMAC_WIDTH8;
cxd56_spi_dmaconfig(bus, CXD56_SPI_DMAC_CHTYPE_RX, hdl, &conf);
}
/* Enable SPI5 */
spi_pincontrol(5, true);
spi_pincontrol(bus, true);
g_devhandle = gs2200m_register(devpath, spi, &g_wifi_lower);