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)  * linux/arch/arm/mach-footbridge/netwinder-pci.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * PCI bios-type initialisation for PCI machines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Bits taken from various places.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/pci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <asm/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <asm/mach/pci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <asm/mach-types.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)  * We now use the slot ID instead of the device identifiers to select
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  * which interrupt is routed where.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static int netwinder_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	switch (slot) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	case 0:  /* host bridge */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	case 9:  /* CyberPro */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		return IRQ_NETWINDER_VGA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	case 10: /* DC21143 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		return IRQ_NETWINDER_ETHER100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	case 12: /* Winbond 553 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		return IRQ_ISA_HARDDISK1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	case 13: /* Winbond 89C940F */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		return IRQ_NETWINDER_ETHER10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		printk(KERN_ERR "PCI: unknown device in slot %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 			pci_name(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) static struct hw_pci netwinder_pci __initdata = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	.map_irq		= netwinder_map_irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	.nr_controllers		= 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	.ops			= &dc21285_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	.setup			= dc21285_setup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	.preinit		= dc21285_preinit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	.postinit		= dc21285_postinit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static int __init netwinder_pci_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	if (machine_is_netwinder())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 		pci_common_init(&netwinder_pci);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) subsys_initcall(netwinder_pci_init);