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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2016-07-04 12:44:25 +0300
committerMark Brown <broonie@kernel.org>2016-07-04 16:13:42 +0200
commit4f4709109ef7e1248b5515c68df4b9c5ad39fbdf (patch)
tree8208282b621e5552194d0b46e723daf6d832601e /drivers/spi
parent743485ea3bee852fa816a2ec6c64b3d500e39895 (diff)
downloadlinux-4f4709109ef7e1248b5515c68df4b9c5ad39fbdf.tar.gz
linux-4f4709109ef7e1248b5515c68df4b9c5ad39fbdf.tar.xz
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>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-pxa2xx-pci.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/spi/spi-pxa2xx-pci.c b/drivers/spi/spi-pxa2xx-pci.c
index 8d58598c325d..b025eaf14f0f 100644
--- a/drivers/spi/spi-pxa2xx-pci.c
+++ b/drivers/spi/spi-pxa2xx-pci.c
@@ -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 },