Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (C) 2015 Broadcom Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Copyright (C) 2015 Hauke Mehrtens <hauke@hauke-m.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <linux/pci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/phy/phy.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/bcma/bcma.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/ioport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "pcie-iproc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) /* NS: CLASS field is R/O, and set to wrong 0x200 value */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) static void bcma_pcie2_fixup_class(struct pci_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	dev->class = PCI_CLASS_BRIDGE_PCI << 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x8011, bcma_pcie2_fixup_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_BROADCOM, 0x8012, bcma_pcie2_fixup_class);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static int iproc_pcie_bcma_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	struct iproc_pcie *pcie = dev->sysdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	struct bcma_device *bdev = container_of(pcie->dev, struct bcma_device, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	return bcma_core_irq(bdev, 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static int iproc_pcie_bcma_probe(struct bcma_device *bdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	struct device *dev = &bdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	struct iproc_pcie *pcie;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	struct pci_host_bridge *bridge;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	bridge = devm_pci_alloc_host_bridge(dev, sizeof(*pcie));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	if (!bridge)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	pcie = pci_host_bridge_priv(bridge);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	pcie->dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	pcie->type = IPROC_PCIE_PAXB_BCMA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	pcie->base = bdev->io_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	if (!pcie->base) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 		dev_err(dev, "no controller registers\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	pcie->base_addr = bdev->addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	pcie->mem.start = bdev->addr_s[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	pcie->mem.end = bdev->addr_s[0] + SZ_128M - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 	pcie->mem.name = "PCIe MEM space";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	pcie->mem.flags = IORESOURCE_MEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	pci_add_resource(&bridge->windows, &pcie->mem);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 	ret = devm_request_pci_bus_resources(dev, &bridge->windows);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 	pcie->map_irq = iproc_pcie_bcma_map_irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 	bcma_set_drvdata(bdev, pcie);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 	return iproc_pcie_setup(pcie, &bridge->windows);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) static void iproc_pcie_bcma_remove(struct bcma_device *bdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 	struct iproc_pcie *pcie = bcma_get_drvdata(bdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 	iproc_pcie_remove(pcie);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) static const struct bcma_device_id iproc_pcie_bcma_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_PCIEG2, BCMA_ANY_REV, BCMA_ANY_CLASS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 	{},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) MODULE_DEVICE_TABLE(bcma, iproc_pcie_bcma_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static struct bcma_driver iproc_pcie_bcma_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) 	.name		= KBUILD_MODNAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) 	.id_table	= iproc_pcie_bcma_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) 	.probe		= iproc_pcie_bcma_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) 	.remove		= iproc_pcie_bcma_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) module_bcma_driver(iproc_pcie_bcma_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) MODULE_AUTHOR("Hauke Mehrtens");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) MODULE_DESCRIPTION("Broadcom iProc PCIe BCMA driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) MODULE_LICENSE("GPL v2");