Merge branch 'master' of git://git.denx.de/u-boot

[oweals/u-boot.git] / arch / x86 / include / asm / pci.h

diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 37cc7e3a0f849f59ed561a6ba44a319f00b0798e..f7e968e0b0d34192d2cf12f9adeedfa78046f468 100644 (file)
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -1,37 +1,82 @@
-
-
 /*
  * (C) Copyright 2002
  * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #ifndef _PCI_I386_H_
-#define _PCI_I386_H_   1
+#define _PCI_I386_H_
+
+#include <pci.h>
+
+/* bus mapping constants (used for PCI core initialization) */
+#define PCI_REG_ADDR   0xcf8
+#define PCI_REG_DATA   0xcfc
+
+#define PCI_CFG_EN     0x80000000
+
+#ifndef __ASSEMBLY__
 
 #define DEFINE_PCI_DEVICE_TABLE(_table) \
        const struct pci_device_id _table[]
 
+struct pci_controller;
+
 void pci_setup_type1(struct pci_controller *hose);
-int pci_enable_legacy_video_ports(struct pci_controller* hose);
-int pci_shadow_rom(pci_dev_t dev, unsigned char *dest);
-void pci_remove_rom_window(struct pci_controller* hose, u32 addr);
-u32 pci_get_rom_window(struct pci_controller* hose, int size);
-#endif
+
+/**
+ * board_pci_setup_hose() - Set up the PCI hose
+ *
+ * This is called by the common x86 PCI code to set up the PCI controller
+ * hose. It may be called when no memory/BSS is available so should just
+ * store things in 'hose' and not in BSS variables.
+ */
+void board_pci_setup_hose(struct pci_controller *hose);
+
+/**
+ * pci_early_init_hose() - Set up PCI host before relocation
+ *
+ * This allocates memory for, sets up and returns the PCI hose. It can be
+ * called before relocation. The hose will be stored in gd->hose for
+ * later use, but will become invalid one DRAM is available.
+ */
+int pci_early_init_hose(struct pci_controller **hosep);
+
+int board_pci_pre_scan(struct pci_controller *hose);
+int board_pci_post_scan(struct pci_controller *hose);
+
+/*
+ * Simple PCI access routines - these work from either the early PCI hose
+ * or the 'real' one, created after U-Boot has memory available
+ */
+unsigned int x86_pci_read_config8(pci_dev_t dev, unsigned where);
+unsigned int x86_pci_read_config16(pci_dev_t dev, unsigned where);
+unsigned int x86_pci_read_config32(pci_dev_t dev, unsigned where);
+
+void x86_pci_write_config8(pci_dev_t dev, unsigned where, unsigned value);
+void x86_pci_write_config16(pci_dev_t dev, unsigned where, unsigned value);
+void x86_pci_write_config32(pci_dev_t dev, unsigned where, unsigned value);
+
+int pci_x86_read_config(struct udevice *bus, pci_dev_t bdf, uint offset,
+                       ulong *valuep, enum pci_size_t size);
+
+int pci_x86_write_config(struct udevice *bus, pci_dev_t bdf, uint offset,
+                        ulong value, enum pci_size_t size);
+
+/**
+ * Assign IRQ number to a PCI device
+ *
+ * This function assigns IRQ for a PCI device. If the device does not exist
+ * or does not require interrupts then this function has no effect.
+ *
+ * @bus:       PCI bus number
+ * @device:    PCI device number
+ * @irq:       An array of IRQ numbers that are assigned to INTA through
+ *             INTD of this PCI device.
+ */
+void pci_assign_irqs(int bus, int device, u8 irq[4]);
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _PCI_I386_H_ */