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| author | Jethro Beekman <jethro@fortanix.com> | 2019-09-04 01:15:24 +0000 |
|---|---|---|
| committer | Tudor Ambarus <tudor.ambarus@microchip.com> | 2019-10-23 09:27:18 +0300 |
| commit | 4b97ba73dcdc24fd968cbeb970ae57212e2c1c73 (patch) | |
| tree | 8699ecccfaecd80bcfbfc90e2dd514bade783fd0 /drivers/mtd/spi-nor | |
| parent | 3912970809cfbc005bf0b404b9d286a95def694e (diff) | |
| download | lwn-4b97ba73dcdc24fd968cbeb970ae57212e2c1c73.tar.gz lwn-4b97ba73dcdc24fd968cbeb970ae57212e2c1c73.zip | |
mtd: spi-nor: intel-spi: add support for Intel Cannon Lake SPI flash
Now that SPI flash controllers without a software sequencer are
supported, it's trivial to add support for CNL and its PCI ID.
Values from https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/300-series-chipset-pch-datasheet-vol-2.pdf
Signed-off-by: Jethro Beekman <jethro@fortanix.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Diffstat (limited to 'drivers/mtd/spi-nor')
| -rw-r--r-- | drivers/mtd/spi-nor/intel-spi-pci.c | 5 | ||||
| -rw-r--r-- | drivers/mtd/spi-nor/intel-spi.c | 11 |
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/mtd/spi-nor/intel-spi-pci.c b/drivers/mtd/spi-nor/intel-spi-pci.c index 3cda8e7a68f8..581d154796c1 100644 --- a/drivers/mtd/spi-nor/intel-spi-pci.c +++ b/drivers/mtd/spi-nor/intel-spi-pci.c @@ -20,6 +20,10 @@ static const struct intel_spi_boardinfo bxt_info = { .type = INTEL_SPI_BXT, }; +static const struct intel_spi_boardinfo cnl_info = { + .type = INTEL_SPI_CNL, +}; + static int intel_spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { @@ -68,6 +72,7 @@ static const struct pci_device_id intel_spi_pci_ids[] = { { PCI_VDEVICE(INTEL, 0xa0a4), (unsigned long)&bxt_info }, { PCI_VDEVICE(INTEL, 0xa1a4), (unsigned long)&bxt_info }, { PCI_VDEVICE(INTEL, 0xa224), (unsigned long)&bxt_info }, + { PCI_VDEVICE(INTEL, 0xa324), (unsigned long)&cnl_info }, { }, }; MODULE_DEVICE_TABLE(pci, intel_spi_pci_ids); diff --git a/drivers/mtd/spi-nor/intel-spi.c b/drivers/mtd/spi-nor/intel-spi.c index a85af3b65f2f..8420528dbaa8 100644 --- a/drivers/mtd/spi-nor/intel-spi.c +++ b/drivers/mtd/spi-nor/intel-spi.c @@ -108,6 +108,10 @@ #define BXT_FREG_NUM 12 #define BXT_PR_NUM 6 +#define CNL_PR 0x84 +#define CNL_FREG_NUM 6 +#define CNL_PR_NUM 5 + #define LVSCC 0xc4 #define UVSCC 0xc8 #define ERASE_OPCODE_SHIFT 8 @@ -344,6 +348,13 @@ static int intel_spi_init(struct intel_spi *ispi) ispi->erase_64k = true; break; + case INTEL_SPI_CNL: + ispi->sregs = NULL; + ispi->pregs = ispi->base + CNL_PR; + ispi->nregions = CNL_FREG_NUM; + ispi->pr_num = CNL_PR_NUM; + break; + default: return -EINVAL; } |