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| author | Hector Martin <marcan@marcan.st> | 2025-04-01 12:17:13 +0300 |
|---|---|---|
| committer | Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2025-04-23 10:22:50 +0300 |
| commit | 4e639f11d6e06d9b33d29e0ae2c57b993b44ee48 (patch) | |
| tree | d6075f8a4e536fc957aaffd32c478f88d0b577f1 | |
| parent | 3f1ccd6e85d7b57460efb71e73da91fbea48d98a (diff) | |
| download | linux-4e639f11d6e06d9b33d29e0ae2c57b993b44ee48.tar.xz | |
PCI: apple: Add T602x PCIe support
This version of the hardware moved around a bunch of registers, so we
avoid the old compatible for these and introduce register offset
structures to handle the differences.
Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Tested-by: Janne Grunau <j@jannau.net>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Link: https://patch.msgid.link/20250401091713.2765724-14-maz@kernel.org
| -rw-r--r-- | drivers/pci/controller/pcie-apple.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/pci/controller/pcie-apple.c b/drivers/pci/controller/pcie-apple.c index 1ffab0c068e3..1211ca957c41 100644 --- a/drivers/pci/controller/pcie-apple.c +++ b/drivers/pci/controller/pcie-apple.c @@ -124,6 +124,13 @@ #define PORT_TUNSTAT_PERST_ACK_PEND BIT(1) #define PORT_PREFMEM_ENABLE 0x00994 +/* T602x (M2-pro and co) */ +#define PORT_T602X_MSIADDR 0x016c +#define PORT_T602X_MSIADDR_HI 0x0170 +#define PORT_T602X_PERST 0x082c +#define PORT_T602X_RID2SID 0x3000 +#define PORT_T602X_MSIMAP 0x3800 + #define PORT_MSIMAP_ENABLE BIT(31) #define PORT_MSIMAP_TARGET GENMASK(7, 0) @@ -158,6 +165,18 @@ static const struct hw_info t8103_hw = { .max_rid2sid = 64, }; +static const struct hw_info t602x_hw = { + .phy_lane_ctl = 0, + .port_msiaddr = PORT_T602X_MSIADDR, + .port_msiaddr_hi = PORT_T602X_MSIADDR_HI, + .port_refclk = 0, + .port_perst = PORT_T602X_PERST, + .port_rid2sid = PORT_T602X_RID2SID, + .port_msimap = PORT_T602X_MSIMAP, + /* 16 on t602x, guess for autodetect on future HW */ + .max_rid2sid = 512, +}; + struct apple_pcie { struct mutex lock; struct device *dev; @@ -425,6 +444,7 @@ static int apple_pcie_port_setup_irq(struct apple_pcie_port *port) /* Disable all interrupts */ writel_relaxed(~0, port->base + PORT_INTMSK); writel_relaxed(~0, port->base + PORT_INTSTAT); + writel_relaxed(~0, port->base + PORT_LINKCMDSTS); irq_set_chained_handler_and_data(irq, apple_port_irq_handler, port); @@ -863,6 +883,7 @@ static int apple_pcie_probe(struct platform_device *pdev) } static const struct of_device_id apple_pcie_of_match[] = { + { .compatible = "apple,t6020-pcie", .data = &t602x_hw }, { .compatible = "apple,pcie", .data = &t8103_hw }, { } }; |