| /* 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) |
| { |
| uint32_t ver; |
| |
| 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); |
| |
| if (CONFIG(DRIVERS_GENESYSLOGIC_GL9763E_L1_MAX)) |
| /* Set L1 entry delay to MAX */ |
| pci_or_config32(dev, CFG_REG_2, CFG_REG_2_L1DLY_MAX); |
| |
| /* 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); |
| /* Check chip version */ |
| ver = pci_read_config32(dev, HW_VER_2); |
| if ((ver & HW_VER_MASK) == REVISION_03) { |
| /* Set clock source for RX path */ |
| pci_update_config32(dev, SD_CLKRX_DLY, ~CLK_SRC_MASK, AFTER_OUTPUT_BUFF); |
| } |
| /* Modify DS delay */ |
| pci_update_config32(dev, SD_CLKRX_DLY, ~HS400_RX_DELAY_MASK, HS400_RX_DELAY); |
| /* Disable Slow mode */ |
| pci_and_config32(dev, EMMC_CTL, ~SLOW_MODE); |
| /* 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_DID_GLI_9763E, |
| 0 |
| }; |
| |
| static const struct pci_driver genesyslogic_gl9763e __pci_driver = { |
| .ops = &gl9763e_ops, |
| .vendor = PCI_VID_GLI, |
| .devices = pci_device_ids, |
| }; |
| |
| struct chip_operations drivers_generic_genesyslogic_ops = { |
| CHIP_NAME("Genesys Logic GL9763E") |
| }; |