Commit ce4b1b56 authored by Cédric Le Goater's avatar Cédric Le Goater Committed by David Gibson
Browse files

ppc/pnv: add dummy XSCOM registers for PRD initialization 



PRD (Processor recovery diagnostics) is a service available on
OpenPower systems. The opal-prd daemon initializes the PowerPC
Processor through the XSCOM bus and then waits for hardware diagnostic
events.

Signed-off-by: default avatarCédric Le Goater <clg@kaod.org>
Message-Id: <20190527071722.31424-1-clg@kaod.org>
Signed-off-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
parent 83b90bf0

hw/ppc/pnv_xscom.c

+18 −0
Original line number Diff line number Diff line
@@ -29,6 +29,12 @@ 


#include <libfdt.h>



/* PRD registers */

#define PRD_P8_IPOLL_REG_MASK           0x01020013

#define PRD_P8_IPOLL_REG_STATUS         0x01020014

#define PRD_P9_IPOLL_REG_MASK           0x000F0033

#define PRD_P9_IPOLL_REG_STATUS         0x000F0034



static void xscom_complete(CPUState *cs, uint64_t hmer_bits)

{

    /*
@@ -70,6 +76,12 @@ static uint64_t xscom_read_default(PnvChip *chip, uint32_t pcba) 
    case 0x1010c00:     /* PIBAM FIR */

    case 0x1010c03:     /* PIBAM FIR MASK */



        /* PRD registers */

    case PRD_P8_IPOLL_REG_MASK:

    case PRD_P8_IPOLL_REG_STATUS:

    case PRD_P9_IPOLL_REG_MASK:

    case PRD_P9_IPOLL_REG_STATUS:



        /* P9 xscom reset */

    case 0x0090018:     /* Receive status reg */

    case 0x0090012:     /* log register */
@@ -124,6 +136,12 @@ static bool xscom_write_default(PnvChip *chip, uint32_t pcba, uint64_t val) 
    case 0x201302a:     /* CAPP stuff */

    case 0x2013801:     /* CAPP stuff */

    case 0x2013802:     /* CAPP stuff */



        /* P8 PRD registers */

    case PRD_P8_IPOLL_REG_MASK:

    case PRD_P8_IPOLL_REG_STATUS:

    case PRD_P9_IPOLL_REG_MASK:

    case PRD_P9_IPOLL_REG_STATUS:

        return true;

    default:

        return false;