History

PCI: mediatek: Add controller support for MT7629

MT7629 is an ARM platform SoC which has the same PCIe IP as MT7622. The HW default value of its PCI host controller Device ID is invalid, fix it to match the hardware implementation.

Jianjun Wang committed 7 years ago

Commit 0cccd421 parent f4c737d2 files · +19 −0Browse files

Unified · Split

2 files
  1. drivers/pci/controller/pcie-mediatek.c +18 −0
  2. include/linux/pci_ids.h +1 −0
drivers/pci/controller/pcie-mediatek.c+18−0
@@ -73,6 +73,7 @@ · 72 unmodified lines
73#define PCIE_MSI_VECTOR 0x0c073#define PCIE_MSI_VECTOR 0x0c0
74 74
75#define PCIE_CONF_VEND_ID 0x10075#define PCIE_CONF_VEND_ID 0x100
76#define PCIE_CONF_DEVICE_ID 0x102
76#define PCIE_CONF_CLASS_ID 0x10677#define PCIE_CONF_CLASS_ID 0x106
77 78
78#define PCIE_INT_MASK 0x42079#define PCIE_INT_MASK 0x420
@@ -141,12 +142,16 @@ struct mtk_pcie_port; · 62 unmodified lines
141/**142/**
142 * struct mtk_pcie_soc - differentiate between host generations143 * struct mtk_pcie_soc - differentiate between host generations
143 * @need_fix_class_id: whether this host's class ID needed to be fixed or not144 * @need_fix_class_id: whether this host's class ID needed to be fixed or not
145 * @need_fix_device_id: whether this host's device ID needed to be fixed or not
146 * @device_id: device ID which this host need to be fixed
144 * @ops: pointer to configuration access functions147 * @ops: pointer to configuration access functions
145 * @startup: pointer to controller setting functions148 * @startup: pointer to controller setting functions
146 * @setup_irq: pointer to initialize IRQ functions149 * @setup_irq: pointer to initialize IRQ functions
147 */150 */
148struct mtk_pcie_soc {151struct mtk_pcie_soc {
149 bool need_fix_class_id;152 bool need_fix_class_id;
153 bool need_fix_device_id;
154 unsigned int device_id;
150 struct pci_ops *ops;155 struct pci_ops *ops;
151 int (*startup)(struct mtk_pcie_port *port);156 int (*startup)(struct mtk_pcie_port *port);
152 int (*setup_irq)(struct mtk_pcie_port *port, struct device_node *node);157 int (*setup_irq)(struct mtk_pcie_port *port, struct device_node *node);
@@ -696,6 +701,9 @@ static int mtk_pcie_startup_port_v2(struct mtk_pcie_port *port) · 543 unmodified lines
696 writew(val, port->base + PCIE_CONF_CLASS_ID);701 writew(val, port->base + PCIE_CONF_CLASS_ID);
697 }702 }
698 703
704 if (soc->need_fix_device_id)
705 writew(soc->device_id, port->base + PCIE_CONF_DEVICE_ID);
706
699 /* 100ms timeout value should be enough for Gen1/2 training */707 /* 100ms timeout value should be enough for Gen1/2 training */
700 err = readl_poll_timeout(port->base + PCIE_LINK_STATUS_V2, val,708 err = readl_poll_timeout(port->base + PCIE_LINK_STATUS_V2, val,
701 !!(val & PCIE_PORT_LINKUP_V2), 20,709 !!(val & PCIE_PORT_LINKUP_V2), 20,
@@ -1216,11 +1224,21 @@ static const struct mtk_pcie_soc mtk_pcie_soc_mt7622 = { · 514 unmodified lines
1216 .setup_irq = mtk_pcie_setup_irq,1224 .setup_irq = mtk_pcie_setup_irq,
1217};1225};
1218 1226
1227static const struct mtk_pcie_soc mtk_pcie_soc_mt7629 = {
1228 .need_fix_class_id = true,
1229 .need_fix_device_id = true,
1230 .device_id = PCI_DEVICE_ID_MEDIATEK_7629,
1231 .ops = &mtk_pcie_ops_v2,
1232 .startup = mtk_pcie_startup_port_v2,
1233 .setup_irq = mtk_pcie_setup_irq,
1234};
1235
1219static const struct of_device_id mtk_pcie_ids[] = {1236static const struct of_device_id mtk_pcie_ids[] = {
1220 { .compatible = "mediatek,mt2701-pcie", .data = &mtk_pcie_soc_v1 },1237 { .compatible = "mediatek,mt2701-pcie", .data = &mtk_pcie_soc_v1 },
1221 { .compatible = "mediatek,mt7623-pcie", .data = &mtk_pcie_soc_v1 },1238 { .compatible = "mediatek,mt7623-pcie", .data = &mtk_pcie_soc_v1 },
1222 { .compatible = "mediatek,mt2712-pcie", .data = &mtk_pcie_soc_mt2712 },1239 { .compatible = "mediatek,mt2712-pcie", .data = &mtk_pcie_soc_mt2712 },
1223 { .compatible = "mediatek,mt7622-pcie", .data = &mtk_pcie_soc_mt7622 },1240 { .compatible = "mediatek,mt7622-pcie", .data = &mtk_pcie_soc_mt7622 },
1241 { .compatible = "mediatek,mt7629-pcie", .data = &mtk_pcie_soc_mt7629 },
1224 {},1242 {},
1225};1243};
1226 1244
include/linux/pci_ids.h+1−0
@@ -2132,6 +2132,7 @@ · 2131 unmodified lines
2132#define PCI_VENDOR_ID_MYRICOM 0x14c12132#define PCI_VENDOR_ID_MYRICOM 0x14c1
2133 2133
2134#define PCI_VENDOR_ID_MEDIATEK 0x14c32134#define PCI_VENDOR_ID_MEDIATEK 0x14c3
2135#define PCI_DEVICE_ID_MEDIATEK_7629 0x7629
2135 2136
2136#define PCI_VENDOR_ID_TITAN 0x14D22137#define PCI_VENDOR_ID_TITAN 0x14D2
2137#define PCI_DEVICE_ID_TITAN_010L 0x80012138#define PCI_DEVICE_ID_TITAN_010L 0x8001

Keyboard shortcuts

General

Show keyboard shortcuts
?
Focus the current search
/

Issues and pull requests

Open filters
f

Issues, pull requests and Inbox

Select next item
j↓
Select previous item
k↑
Open selected item
Enter
Dismiss filters or clear selection
Esc

Repository code

Go to file
t