From c670e29f5bfe6c404a5405a0fa8e235de2f4f0c9 Mon Sep 17 00:00:00 2001 From: Mrinmay Sarkar Date: Fri, 1 Dec 2023 17:36:15 +0530 Subject: PCI: epf-mhi: Add support for SA8775P SoC Add support for Qualcomm Snapdragon SA8775P SoC to the EPF driver. SA8775P is currently reusing the PID 0x0306 (the default one hardcoded in the config space header) as the unique PID is not yet allocated. But the host side stack works fine with the default PID. It will get updated once the PID is finalized. Also, it has no fixed PCI class as of now, so it is being advertised as "PCI_CLASS_OTHERS". Signed-off-by: Mrinmay Sarkar Reviewed-by: Manivannan Sadhasivam Link: https://lore.kernel.org/r/1701432377-16899-5-git-send-email-quic_msarkar@quicinc.com Signed-off-by: Manivannan Sadhasivam --- drivers/pci/endpoint/functions/pci-epf-mhi.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'drivers/pci/endpoint') diff --git a/drivers/pci/endpoint/functions/pci-epf-mhi.c b/drivers/pci/endpoint/functions/pci-epf-mhi.c index 5c0dba5ba602..2c54d80107cf 100644 --- a/drivers/pci/endpoint/functions/pci-epf-mhi.c +++ b/drivers/pci/endpoint/functions/pci-epf-mhi.c @@ -123,6 +123,22 @@ static const struct pci_epf_mhi_ep_info sm8450_info = { .flags = MHI_EPF_USE_DMA, }; +static struct pci_epf_header sa8775p_header = { + .vendorid = PCI_VENDOR_ID_QCOM, + .deviceid = 0x0306, /* FIXME: Update deviceid for sa8775p EP */ + .baseclass_code = PCI_CLASS_OTHERS, + .interrupt_pin = PCI_INTERRUPT_INTA, +}; + +static const struct pci_epf_mhi_ep_info sa8775p_info = { + .config = &mhi_v1_config, + .epf_header = &sa8775p_header, + .bar_num = BAR_0, + .epf_flags = PCI_BASE_ADDRESS_MEM_TYPE_32, + .msi_count = 32, + .mru = 0x8000, +}; + struct pci_epf_mhi { const struct pci_epc_features *epc_features; const struct pci_epf_mhi_ep_info *info; @@ -913,6 +929,7 @@ static int pci_epf_mhi_probe(struct pci_epf *epf, } static const struct pci_epf_device_id pci_epf_mhi_ids[] = { + { .name = "pci_epf_mhi_sa8775p", .driver_data = (kernel_ulong_t)&sa8775p_info }, { .name = "pci_epf_mhi_sdx55", .driver_data = (kernel_ulong_t)&sdx55_info }, { .name = "pci_epf_mhi_sm8450", .driver_data = (kernel_ulong_t)&sm8450_info }, {}, -- cgit v1.2.3