Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2)  * Copyright 2001 MontaVista Software Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Author: MontaVista Software, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *         	stevel@mvista.com or source@mvista.com
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *  This program is free software; you can redistribute  it and/or modify it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *  under  the terms of  the GNU General  Public License as published by the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *  Free Software Foundation;  either version 2 of the  License, or (at your
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  *  option) any later version.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  *  You should have received a copy of the  GNU General Public License along
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  *  with this program; if not, write  to the Free Software Foundation, Inc.,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)  *  675 Mass Ave, Cambridge, MA 02139, USA.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/pci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <asm/mach-rc32434/rc32434.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <asm/mach-rc32434/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static int irq_map[2][12] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	{0, 0, 2, 3, 2, 3, 0, 0, 0, 0, 0, 1},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	{0, 0, 1, 3, 0, 2, 1, 3, 0, 2, 1, 3}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	int irq = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	if (dev->bus->number < 2 && PCI_SLOT(dev->devfn) < 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		irq = irq_map[dev->bus->number][PCI_SLOT(dev->devfn)];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	return irq + GROUP4_IRQ_BASE + 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static void rc32434_pci_early_fixup(struct pci_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	if (PCI_SLOT(dev->devfn) == 6 && dev->bus->number == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 		/* disable prefetched memory range */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 		pci_write_config_word(dev, PCI_PREF_MEMORY_LIMIT, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 		pci_write_config_word(dev, PCI_PREF_MEMORY_BASE, 0x10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 		pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)  * The fixup applies to both the IDT and VIA devices present on the board
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, rc32434_pci_early_fixup);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) /* Do platform specific device initialization at pci_enable_device() time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) int pcibios_plat_dev_init(struct pci_dev *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) }