diff options
| author | Weike Chen <alvin.chen@intel.com> | 2014-11-26 11:35:10 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-11-26 19:07:45 +0100 |
| commit | e5262d0568dc9e10de79a726dfd7edb712a2c10b (patch) | |
| tree | fb8cd4ca58e8f0ef1b1a016ac88139401ed55cfe /drivers/spi/spi-pxa2xx-pci.c | |
| parent | spi: spi-pxa2xx: Add helpers for regiseters' accessing (diff) | |
| download | linux-e5262d0568dc9e10de79a726dfd7edb712a2c10b.tar.xz linux-e5262d0568dc9e10de79a726dfd7edb712a2c10b.zip | |
spi: spi-pxa2xx: SPI support for Intel Quark X1000
There are two SPI controllers exported by PCI subsystem for Intel Quark X1000.
The SPI memory mapped I/O registers supported by Quark are different from
the current implementation, and Quark only supports the registers of 'SSCR0',
'SSCR1', 'SSSR', 'SSDR', and 'DDS_RATE'. This patch is to enable the SPI for
Intel Quark X1000.
This piece of work is derived from Dan O'Donovan's initial work for Intel Quark
X1000 SPI enabling.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Weike Chen <alvin.chen@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-pxa2xx-pci.c')
| -rw-r--r-- | drivers/spi/spi-pxa2xx-pci.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/spi/spi-pxa2xx-pci.c b/drivers/spi/spi-pxa2xx-pci.c index 6beee8ce2d68..fa7399e84bbb 100644 --- a/drivers/spi/spi-pxa2xx-pci.c +++ b/drivers/spi/spi-pxa2xx-pci.c @@ -19,6 +19,7 @@ enum { PORT_BSW0, PORT_BSW1, PORT_BSW2, + PORT_QUARK_X1000, }; struct pxa_spi_info { @@ -92,6 +93,12 @@ static struct pxa_spi_info spi_info_configs[] = { .tx_param = &bsw2_tx_param, .rx_param = &bsw2_rx_param, }, + [PORT_QUARK_X1000] = { + .type = QUARK_X1000_SSP, + .port_id = -1, + .num_chipselect = 1, + .max_clk_rate = 50000000, + }, }; static int pxa2xx_spi_pci_probe(struct pci_dev *dev, @@ -191,6 +198,7 @@ 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, 0x0935), PORT_QUARK_X1000 }, { PCI_VDEVICE(INTEL, 0x0f0e), PORT_BYT }, { PCI_VDEVICE(INTEL, 0x228e), PORT_BSW0 }, { PCI_VDEVICE(INTEL, 0x2290), PORT_BSW1 }, |