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https://gitlab.rtems.org/rtems/rtos/rtems.git
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151 lines
4.6 KiB
C
151 lines
4.6 KiB
C
/*
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* Acknowledgements:
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* Valuable information was obtained from the following drivers
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* netbsd: (C) Allegro Networks Inc; Wasabi Systems Inc.
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* linux: (C) MontaVista, Software, Inc; Chris Zankel, Mark A. Greer.
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* rtems: (C) Brookhaven National Laboratory; K. Feng
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* but this implementation is original work by the author.
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*/
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/*
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* Authorship
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* ----------
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* This software ('beatnik' RTEMS BSP for MVME6100 and MVME5500) was
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* created by Till Straumann <strauman@slac.stanford.edu>, 2005-2007,
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* Stanford Linear Accelerator Center, Stanford University.
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*
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* Acknowledgement of sponsorship
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* ------------------------------
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* The 'beatnik' BSP was produced by
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* the Stanford Linear Accelerator Center, Stanford University,
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* under Contract DE-AC03-76SFO0515 with the Department of Energy.
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*
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* Government disclaimer of liability
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* ----------------------------------
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* Neither the United States nor the United States Department of Energy,
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* nor any of their employees, makes any warranty, express or implied, or
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* assumes any legal liability or responsibility for the accuracy,
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* completeness, or usefulness of any data, apparatus, product, or process
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* disclosed, or represents that its use would not infringe privately owned
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* rights.
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*
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* Stanford disclaimer of liability
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* --------------------------------
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* Stanford University makes no representations or warranties, express or
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* implied, nor assumes any liability for the use of this software.
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*
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* Stanford disclaimer of copyright
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* --------------------------------
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* Stanford University, owner of the copyright, hereby disclaims its
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* copyright and all other rights in this software. Hence, anyone may
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* freely use it for any purpose without restriction.
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*
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* Maintenance of notices
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* ----------------------
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* In the interest of clarity regarding the origin and status of this
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* SLAC software, this and all the preceding Stanford University notices
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* are to remain affixed to any copy or derivative of this software made
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* or distributed by the recipient and are to be affixed to any copy of
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* software made or distributed by the recipient that contains a copy or
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* derivative of this software.
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*
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* ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03
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*/
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#include <rtems.h>
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#include <rtems/bspIo.h>
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#include <bsp.h>
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#include <bsp/gtreg.h>
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#include <bsp/pci.h>
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#include <stdint.h>
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#ifndef PCI_VENDOR_ID_MARVELL
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#define PCI_VENDOR_ID_MARVELL 0x11ab
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#endif
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#ifndef PCI_DEVICE_ID_MARVELL_GT64260
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#define PCI_DEVICE_ID_MARVELL_GT64260 0x6430
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#endif
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#ifndef PCI_DEVICE_ID_MARVELL_MV64360
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#define PCI_DEVICE_ID_MARVELL_MV64360 0x6460
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#endif
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#if 0
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#define MV64x60_PCI0_CONFIG_ADDR (BSP_MV64x60_BASE + 0xcf8)
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#define MV64x60_PCI0_CONFIG_DATA (BSP_MV64x60_BASE + 0xcfc)
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/* read from bus/slot/fn 0/0/0 */
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static unsigned long
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pci_early_config_read(int offset, int width)
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{
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out_be32((uint32_t*) pci.pci_config_addr,
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0x80|(0<<8)|(PCI_DEVFN(0,0)<<16)|((offset&~3)<<24));
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switch (width) {
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default:
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case 1:
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return in_8((uint8_t*)pci.pci_config_data + (offset&3));
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case 2:
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return in_le16((uint16_t*)pci.pci_config_data + (offset&3));
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case 4:
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return in_le32((uint32_t *)pci.pci_config_data + (offset&3));
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}
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}
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#endif
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DiscoveryVersion
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BSP_getDiscoveryVersion(int assertion)
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{
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static DiscoveryVersion rval = unknown;
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if ( unknown ==rval ) {
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unsigned char dc;
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unsigned short ds;
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/* this must work before and after the call to BSP_pciInitialize() --
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* since the host bridge is at 0,0,0 it doesn't matter if the hosed
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* access methods are installed or not (as a matter of fact this shouldn't
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* matter for any device on hose 0)
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*/
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printk("config addr is %p\n", BSP_pci_configuration.pci_config_addr);
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printk("config data is %p\n", BSP_pci_configuration.pci_config_data);
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pci_read_config_word(0,0,0,PCI_VENDOR_ID, &ds);
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if ( PCI_VENDOR_ID_MARVELL != ds ) {
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if ( assertion ) {
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printk("Host bridge vendor id: 0x%04x\n",ds);
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rtems_panic("Host bridge vendor @ pci(0,0,0) is not MARVELL");
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}
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else return unknown;
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}
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pci_read_config_word(0,0,0,PCI_DEVICE_ID, &ds);
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pci_read_config_byte(0,0,0,PCI_REVISION_ID, &dc);
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switch (ds) {
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case PCI_DEVICE_ID_MARVELL_MV64360:
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rval = MV_64360;
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break;
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case PCI_DEVICE_ID_MARVELL_GT64260:
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switch (dc) {
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default:
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break;
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case 0x10:
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return (rval = GT_64260_A);
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case 0x20:
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return (rval = GT_64260_B);
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}
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default:
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if ( assertion ) {
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printk("Marvell device id 0x%04x, revision 0x%02x; check %s:%u\n",
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ds, dc,
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__FILE__,__LINE__);
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rtems_panic("Unknown Marvell bridge or revision@ pci(0,0,0) is not MARVELL");
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}
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break;
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}
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}
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return rval;
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}
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