diff options
Diffstat (limited to 'drivers/pci/controller/pcie-mediatek.c')
| -rw-r--r-- | drivers/pci/controller/pcie-mediatek.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c index 80601e1b939e..626a7c352dfd 100644 --- a/drivers/pci/controller/pcie-mediatek.c +++ b/drivers/pci/controller/pcie-mediatek.c @@ -73,6 +73,7 @@ #define PCIE_MSI_VECTOR 0x0c0 #define PCIE_CONF_VEND_ID 0x100 +#define PCIE_CONF_DEVICE_ID 0x102 #define PCIE_CONF_CLASS_ID 0x106 #define PCIE_INT_MASK 0x420 @@ -141,12 +142,16 @@ struct mtk_pcie_port; /** * struct mtk_pcie_soc - differentiate between host generations * @need_fix_class_id: whether this host's class ID needed to be fixed or not + * @need_fix_device_id: whether this host's device ID needed to be fixed or not + * @device_id: device ID which this host need to be fixed * @ops: pointer to configuration access functions * @startup: pointer to controller setting functions * @setup_irq: pointer to initialize IRQ functions */ struct mtk_pcie_soc { bool need_fix_class_id; + bool need_fix_device_id; + unsigned int device_id; struct pci_ops *ops; int (*startup)(struct mtk_pcie_port *port); int (*setup_irq)(struct mtk_pcie_port *port, struct device_node *node); @@ -630,8 +635,6 @@ static void mtk_pcie_intr_handler(struct irq_desc *desc) } chained_irq_exit(irqchip, desc); - - return; } static int mtk_pcie_setup_irq(struct mtk_pcie_port *port, @@ -696,6 +699,9 @@ static int mtk_pcie_startup_port_v2(struct mtk_pcie_port *port) writew(val, port->base + PCIE_CONF_CLASS_ID); } + if (soc->need_fix_device_id) + writew(soc->device_id, port->base + PCIE_CONF_DEVICE_ID); + /* 100ms timeout value should be enough for Gen1/2 training */ err = readl_poll_timeout(port->base + PCIE_LINK_STATUS_V2, val, !!(val & PCIE_PORT_LINKUP_V2), 20, @@ -1216,11 +1222,21 @@ static const struct mtk_pcie_soc mtk_pcie_soc_mt7622 = { .setup_irq = mtk_pcie_setup_irq, }; +static const struct mtk_pcie_soc mtk_pcie_soc_mt7629 = { + .need_fix_class_id = true, + .need_fix_device_id = true, + .device_id = PCI_DEVICE_ID_MEDIATEK_7629, + .ops = &mtk_pcie_ops_v2, + .startup = mtk_pcie_startup_port_v2, + .setup_irq = mtk_pcie_setup_irq, +}; + static const struct of_device_id mtk_pcie_ids[] = { { .compatible = "mediatek,mt2701-pcie", .data = &mtk_pcie_soc_v1 }, { .compatible = "mediatek,mt7623-pcie", .data = &mtk_pcie_soc_v1 }, { .compatible = "mediatek,mt2712-pcie", .data = &mtk_pcie_soc_mt2712 }, { .compatible = "mediatek,mt7622-pcie", .data = &mtk_pcie_soc_mt7622 }, + { .compatible = "mediatek,mt7629-pcie", .data = &mtk_pcie_soc_mt7629 }, {}, }; |