diff options
Diffstat (limited to 'src/drivers/genesyslogic/gl9763e/gl9763e.c')
| -rw-r--r-- | src/drivers/genesyslogic/gl9763e/gl9763e.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/drivers/genesyslogic/gl9763e/gl9763e.c b/src/drivers/genesyslogic/gl9763e/gl9763e.c new file mode 100644 index 0000000000..48e520bde2 --- /dev/null +++ b/src/drivers/genesyslogic/gl9763e/gl9763e.c @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* Driver for Genesys Logic GL9763E */ + +#include <console/console.h> +#include <device/device.h> +#include <device/path.h> +#include <device/pci.h> +#include <device/pci_ops.h> +#include <device/pci_ids.h> +#include "gl9763e.h" + +static void gl9763e_init(struct device *dev) +{ + printk(BIOS_INFO, "GL9763E: init\n"); + pci_dev_init(dev); + + /* Set VHS (Vendor Header Space) to be writable */ + pci_update_config32(dev, VHS, ~VHS_REV_MASK, VHS_REV_W); + /* Set single AXI request */ + pci_or_config32(dev, SCR, SCR_AXI_REQ); + /* Disable L0s support */ + pci_and_config32(dev, CFG_REG_2, ~CFG_REG_2_L0S); + /* Set SSC to 30000 ppm */ + pci_update_config32(dev, PLL_CTL_2, ~PLL_CTL_2_MAX_SSC_MASK, MAX_SSC_30000PPM); + /* Enable SSC */ + pci_or_config32(dev, PLL_CTL, PLL_CTL_SSC); + /* Set VHS to read-only */ + pci_update_config32(dev, VHS, ~VHS_REV_MASK, VHS_REV_R); +} + +static struct device_operations gl9763e_ops = { + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, + .ops_pci = &pci_dev_ops_pci, + .init = gl9763e_init, +}; + +static const unsigned short pci_device_ids[] = { + PCI_DEVICE_ID_GLI_9763E, + 0 +}; + +static const struct pci_driver genesyslogic_gl9763e __pci_driver = { + .ops = &gl9763e_ops, + .vendor = PCI_VENDOR_ID_GLI, + .devices = pci_device_ids, +}; + +struct chip_operations drivers_generic_genesyslogic_ops = { + CHIP_NAME("Genesys Logic GL9763E") +}; |