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spi: pxa2xx-pci: Enable SPI on Intel Merrifield 

The SPI controllers used on Intel Merrifield are PXA2XX compatible. This patch
enables them.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Andy Shevchenko 2016-07-04 12:44:25 +03:00 committed by Mark Brown
parent 743485ea3b
commit 4f4709109e
1 changed files with 28 additions and 0 deletions
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28
drivers/spi/spi-pxa2xx-pci.c
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@ -15,6 +15,7 @@
enum {
PORT_CE4100,
PORT_BYT,
PORT_MRFLD,
PORT_BSW0,
PORT_BSW1,
PORT_BSW2,
@ -89,6 +90,27 @@ static int lpss_spi_setup(struct pci_dev *dev, struct pxa_spi_info *c)
return 0;
}
static int mrfld_spi_setup(struct pci_dev *dev, struct pxa_spi_info *c)
{
switch (PCI_FUNC(dev->devfn)) {
case 0:
c->port_id = 3;
c->num_chipselect = 1;
break;
case 1:
c->port_id = 5;
c->num_chipselect = 4;
break;
case 2:
c->port_id = 6;
c->num_chipselect = 1;
break;
default:
return -ENODEV;
}
return 0;
}
static struct pxa_spi_info spi_info_configs[] = {
[PORT_CE4100] = {
.type = PXA25x_SSP,
@ -124,6 +146,11 @@ static struct pxa_spi_info spi_info_configs[] = {
.tx_param = &bsw2_tx_param,
.rx_param = &bsw2_rx_param,
},
[PORT_MRFLD] = {
.type = PXA27x_SSP,
.max_clk_rate = 25000000,
.setup = mrfld_spi_setup,
},
[PORT_QUARK_X1000] = {
.type = QUARK_X1000_SSP,
.port_id = -1,
@ -222,6 +249,7 @@ static const struct pci_device_id pxa2xx_spi_pci_devices[] = {
{ PCI_VDEVICE(INTEL, 0x2e6a), PORT_CE4100 },
{ PCI_VDEVICE(INTEL, 0x0935), PORT_QUARK_X1000 },
{ PCI_VDEVICE(INTEL, 0x0f0e), PORT_BYT },
{ PCI_VDEVICE(INTEL, 0x1194), PORT_MRFLD },
{ PCI_VDEVICE(INTEL, 0x228e), PORT_BSW0 },
{ PCI_VDEVICE(INTEL, 0x2290), PORT_BSW1 },
{ PCI_VDEVICE(INTEL, 0x22ac), PORT_BSW2 },