diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/shared/pci/generic_clear_hberrs.c')
-rw-r--r-- | c/src/lib/libbsp/powerpc/shared/pci/generic_clear_hberrs.c | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/c/src/lib/libbsp/powerpc/shared/pci/generic_clear_hberrs.c b/c/src/lib/libbsp/powerpc/shared/pci/generic_clear_hberrs.c deleted file mode 100644 index 1bc4009b15..0000000000 --- a/c/src/lib/libbsp/powerpc/shared/pci/generic_clear_hberrs.c +++ /dev/null @@ -1,63 +0,0 @@ -#include <libcpu/io.h> -#include <libcpu/spr.h> - -#include <bsp.h> -#include <bsp/pci.h> - -#include <rtems/bspIo.h> - -#define PCI_ERR_BITS 0xf900 -#define PCI_STATUS_OK(x) (!((x)&PCI_ERR_BITS)) - -/* For now, just clear errors in the PCI status reg. - * - * Returns: (for diagnostic purposes) - * original settings (i.e. before applying the clearing - * sequence) or the error bits or 0 if there were no errors. - * - */ - -unsigned short -(*_BSP_clear_vmebridge_errors)(int) = 0; - -unsigned long -_BSP_clear_hostbridge_errors(int enableMCP, int quiet) -{ -unsigned long rval; -unsigned short pcistat; -int count; - - if (enableMCP) - return -1; /* exceptions not supported / MCP not wired */ - - /* read error status for info return */ - pci_read_config_word(0,0,0,PCI_STATUS,&pcistat); - rval = pcistat; - - count=10; - do { - /* clear error reporting registers */ - - /* clear PCI status register */ - pci_write_config_word(0,0,0,PCI_STATUS, PCI_ERR_BITS); - - /* read new status */ - pci_read_config_word(0,0,0,PCI_STATUS, &pcistat); - - } while ( ! PCI_STATUS_OK(pcistat) && count-- ); - - if ( !PCI_STATUS_OK(rval) && !quiet) { - printk("Cleared PCI errors: pci_stat was 0x%04lx\n", rval); - } - if ( !PCI_STATUS_OK(pcistat) ) { - printk("Unable to clear PCI errors: still 0x%04x after 10 attempts\n", pcistat); - } - - rval &= PCI_ERR_BITS; - - /* Some VME bridges (Tsi148) don't propagate VME bus errors to PCI status reg. */ - if ( _BSP_clear_vmebridge_errors ) - rval |= _BSP_clear_vmebridge_errors(quiet)<<16; - - return rval; -} |