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authorBALATON Zoltan <balaton@eik.bme.hu>2019-01-09 23:37:33 +0100
committerDavid Gibson <david@gibson.dropbear.id.au>2019-02-04 18:44:17 +1100
commit4f10ed277da91b2cb1b6e8a2de18792ce7881832 (patch)
treedc0aea6c35f19c8039b171951d0e480c56c2c716 /hw/ppc/ppc440_uc.c
parent52b73c09bfee1b7feae6f6c281bab5bf0f94964e (diff)
ppc440: Avoid reporting error when reading non-existent RAM slot
When reading base register of RAM slot with no RAM we should not try to calculate register value because that will result printing an error due to invalid RAM size. Just return 0 without the error in this case. Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc/ppc440_uc.c')
-rw-r--r--hw/ppc/ppc440_uc.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/ppc/ppc440_uc.c b/hw/ppc/ppc440_uc.c
index c489368905..9130eb314c 100644
--- a/hw/ppc/ppc440_uc.c
+++ b/hw/ppc/ppc440_uc.c
@@ -613,8 +613,10 @@ static uint32_t dcr_read_sdram(void *opaque, int dcrn)
case SDRAM_R1BAS:
case SDRAM_R2BAS:
case SDRAM_R3BAS:
- ret = sdram_bcr(sdram->ram_bases[dcrn - SDRAM_R0BAS],
- sdram->ram_sizes[dcrn - SDRAM_R0BAS]);
+ if (sdram->ram_sizes[dcrn - SDRAM_R0BAS]) {
+ ret = sdram_bcr(sdram->ram_bases[dcrn - SDRAM_R0BAS],
+ sdram->ram_sizes[dcrn - SDRAM_R0BAS]);
+ }
break;
case SDRAM_CONF1HB:
case SDRAM_CONF1LL: