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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: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190527071722.31424-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2019-05-27 09:17:22 +02:00 committed by David Gibson
parent 83b90bf026
commit ce4b1b5685
1 changed files with 18 additions and 0 deletions
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18
hw/ppc/pnv_xscom.c
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@ -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;