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Diffstat (limited to 'c/src/lib/libbsp/powerpc/beatnik/marvell/discovery.c')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/beatnik/marvell/discovery.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/beatnik/marvell/discovery.c b/c/src/lib/libbsp/powerpc/beatnik/marvell/discovery.c new file mode 100644 index 0000000000..81bbf7b4e0 --- /dev/null +++ b/c/src/lib/libbsp/powerpc/beatnik/marvell/discovery.c @@ -0,0 +1,151 @@ +/* $Id$ */ + +/* + * Acknowledgements: + * Valuable information was obtained from the following drivers + * netbsd: (C) Allegro Networks Inc; Wasabi Systems Inc. + * linux: (C) MontaVista, Software, Inc; Chris Zankel, Mark A. Greer. + * rtems: (C) Brookhaven National Laboratory; K. Feng + * but this implementation is original work by the author. + */ + +/* + * Authorship + * ---------- + * This software ('beatnik' RTEMS BSP for MVME6100 and MVME5500) was + * created by Till Straumann <strauman@slac.stanford.edu>, 2005-2007, + * Stanford Linear Accelerator Center, Stanford University. + * + * Acknowledgement of sponsorship + * ------------------------------ + * The 'beatnik' BSP was produced by + * the Stanford Linear Accelerator Center, Stanford University, + * under Contract DE-AC03-76SFO0515 with the Department of Energy. + * + * Government disclaimer of liability + * ---------------------------------- + * Neither the United States nor the United States Department of Energy, + * nor any of their employees, makes any warranty, express or implied, or + * assumes any legal liability or responsibility for the accuracy, + * completeness, or usefulness of any data, apparatus, product, or process + * disclosed, or represents that its use would not infringe privately owned + * rights. + * + * Stanford disclaimer of liability + * -------------------------------- + * Stanford University makes no representations or warranties, express or + * implied, nor assumes any liability for the use of this software. + * + * Stanford disclaimer of copyright + * -------------------------------- + * Stanford University, owner of the copyright, hereby disclaims its + * copyright and all other rights in this software. Hence, anyone may + * freely use it for any purpose without restriction. + * + * Maintenance of notices + * ---------------------- + * In the interest of clarity regarding the origin and status of this + * SLAC software, this and all the preceding Stanford University notices + * are to remain affixed to any copy or derivative of this software made + * or distributed by the recipient and are to be affixed to any copy of + * software made or distributed by the recipient that contains a copy or + * derivative of this software. + * + * ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03 + */ + +#include <rtems.h> +#include <rtems/bspIo.h> +#include <bsp.h> +#include <bsp/gtreg.h> +#include <bsp/pci.h> + +#ifndef PCI_VENDOR_ID_MARVELL +#define PCI_VENDOR_ID_MARVELL 0x11ab +#endif + +#ifndef PCI_DEVICE_ID_MARVELL_GT64260 +#define PCI_DEVICE_ID_MARVELL_GT64260 0x6430 +#endif + +#ifndef PCI_DEVICE_ID_MARVELL_MV64360 +#define PCI_DEVICE_ID_MARVELL_MV64360 0x6460 +#endif + +#if 0 +#define MV64x60_PCI0_CONFIG_ADDR (BSP_MV64x60_BASE + 0xcf8) +#define MV64x60_PCI0_CONFIG_DATA (BSP_MV64x60_BASE + 0xcfc) + +/* read from bus/slot/fn 0/0/0 */ +static unsigned long +pci_early_config_read(int offset, int width) +{ + out_be32((unsigned int*) pci.pci_config_addr, + 0x80|(0<<8)|(PCI_DEVFN(0,0)<<16)|((offset&~3)<<24)); + switch (width) { + default: + case 1: + return in_8((unsigned char*)pci.pci_config_data + (offset&3)); + case 2: + return in_le16((unsigned short*)pci.pci_config_data + (offset&3)); + case 4: + return in_le32((unsigned long *)pci.pci_config_data + (offset&3)); + } +} +#endif + +DiscoveryVersion +BSP_getDiscoveryVersion(int assertion) +{ +static DiscoveryVersion rval = unknown; + + if ( unknown ==rval ) { + unsigned char dc; + unsigned short ds; + /* this must work before and after the call to BSP_pciInitialize() -- + * since the host bridge is at 0,0,0 it doesn't matter if the hosed + * access methods are installed or not (as a matter of fact this shouldn't + * matter for any device on hose 0) + */ +printk("config addr is 0x%08x\n", BSP_pci_configuration.pci_config_addr); +printk("config data is 0x%08x\n", BSP_pci_configuration.pci_config_data); + pci_read_config_word(0,0,0,PCI_VENDOR_ID, &ds); + if ( PCI_VENDOR_ID_MARVELL != ds ) { + if ( assertion ) { + printk("Host bridge vendor id: 0x%04x\n",ds); + BSP_panic("Host bridge vendor @ pci(0,0,0) is not MARVELL"); + } + else return unknown; + } + pci_read_config_word(0,0,0,PCI_DEVICE_ID, &ds); + pci_read_config_byte(0,0,0,PCI_REVISION_ID, &dc); + switch (ds) { + case PCI_DEVICE_ID_MARVELL_MV64360: + rval = MV_64360; + break; + + case PCI_DEVICE_ID_MARVELL_GT64260: + switch (dc) { + default: + break; + + case 0x10: + return (rval = GT_64260_A); + + case 0x20: + return (rval = GT_64260_B); + } + + default: + if ( assertion ) { + printk("Marvell device id 0x%04x, revision 0x%02x; check %s:%u\n", + ds, dc, + __FILE__,__LINE__); + BSP_panic("Unknown Marvell bridge or revision@ pci(0,0,0) is not MARVELL"); + } + break; + } + } + + return rval; +} |