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Commit 39d36536 authored by Mika Westerberg's avatar Mika Westerberg Committed by Vinod Koul
Browse files

spi/pxa2xx-pci: Add support for Intel Braswell 



Instead of one port we have 3 ports and all of them can take advantage of
the shared DMA controller.

Signed-off-by: default avatarMika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: default avatarMark Brown <broonie@linaro.org>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent b729bf34

drivers/spi/spi-pxa2xx-pci.c

+37 −0
Original line number Diff line number Diff line
@@ -16,6 +16,9 @@ 
enum {

	PORT_CE4100,

	PORT_BYT,

	PORT_BSW0,

	PORT_BSW1,

	PORT_BSW2,

};



struct pxa_spi_info {
@@ -32,6 +35,13 @@ struct pxa_spi_info { 
static struct dw_dma_slave byt_tx_param = { .dst_id = 0 };

static struct dw_dma_slave byt_rx_param = { .src_id = 1 };



static struct dw_dma_slave bsw0_tx_param = { .dst_id = 0 };

static struct dw_dma_slave bsw0_rx_param = { .src_id = 1 };

static struct dw_dma_slave bsw1_tx_param = { .dst_id = 6 };

static struct dw_dma_slave bsw1_rx_param = { .src_id = 7 };

static struct dw_dma_slave bsw2_tx_param = { .dst_id = 8 };

static struct dw_dma_slave bsw2_rx_param = { .src_id = 9 };



static bool lpss_dma_filter(struct dma_chan *chan, void *param)

{

	struct dw_dma_slave *dws = param;
@@ -58,6 +68,30 @@ static struct pxa_spi_info spi_info_configs[] = { 
		.tx_param = &byt_tx_param,

		.rx_param = &byt_rx_param,

	},

	[PORT_BSW0] = {

		.type = LPSS_SSP,

		.port_id = 0,

		.num_chipselect = 1,

		.max_clk_rate = 50000000,

		.tx_param = &bsw0_tx_param,

		.rx_param = &bsw0_rx_param,

	},

	[PORT_BSW1] = {

		.type = LPSS_SSP,

		.port_id = 1,

		.num_chipselect = 1,

		.max_clk_rate = 50000000,

		.tx_param = &bsw1_tx_param,

		.rx_param = &bsw1_rx_param,

	},

	[PORT_BSW2] = {

		.type = LPSS_SSP,

		.port_id = 2,

		.num_chipselect = 1,

		.max_clk_rate = 50000000,

		.tx_param = &bsw2_tx_param,

		.rx_param = &bsw2_rx_param,

	},

};



static int pxa2xx_spi_pci_probe(struct pci_dev *dev,
@@ -159,6 +193,9 @@ static void pxa2xx_spi_pci_remove(struct pci_dev *dev) 
static const struct pci_device_id pxa2xx_spi_pci_devices[] = {

	{ PCI_VDEVICE(INTEL, 0x2e6a), PORT_CE4100 },

	{ PCI_VDEVICE(INTEL, 0x0f0e), PORT_BYT },

	{ PCI_VDEVICE(INTEL, 0x228e), PORT_BSW0 },

	{ PCI_VDEVICE(INTEL, 0x2290), PORT_BSW1 },

	{ PCI_VDEVICE(INTEL, 0x22ac), PORT_BSW2 },

	{ },

};

MODULE_DEVICE_TABLE(pci, pxa2xx_spi_pci_devices);