Without this change DPRAM can be exhausted when CFG_ALLOC_DPRAM is
defined, which eventually leads to a machine check. This change
assures that DPRAM is allocated only once in that case.
Signed-off-by: Gary Jennejohn <[EMAIL PROTECTED]>
---
cpu/mpc8xx/scc.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/cpu/mpc8xx/scc.c b/cpu/mpc8xx/scc.c
index 09a3db1..d91289a 100644
--- a/cpu/mpc8xx/scc.c
+++ b/cpu/mpc8xx/scc.c
@@ -216,7 +216,9 @@ static int scc_init (struct eth_device *dev, bd_t * bis)
txIdx = 0;
#ifdef CFG_ALLOC_DPRAM
- rtx = (RTXBD *) (immr->im_cpm.cp_dpmem +
+ /* Avoid exhausting DPRAM. */
+ if (rtx == NULL)
+ rtx = (RTXBD *) (immr->im_cpm.cp_dpmem +
dpram_alloc_align (sizeof (RTXBD), 8));
#else
rtx = (RTXBD *) (immr->im_cpm.cp_dpmem + CPM_SCC_BASE);
--
1.5.4.3
---
Gary Jennejohn
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