Fix compiler warning in mpc8xxx ddr code
ctrl_regs.c: In function 'compute_fsl_memctl_config_regs':
ctrl_regs.c:523: warning: 'caslat' may be used uninitialized in this function
ctrl_regs.c:523: note: 'caslat' was declared here
Add a warning in DDR1 case if cas_latency isn't a value we know about.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/cpu/mpc8xxx/ddr/ctrl_regs.c b/cpu/mpc8xxx/ddr/ctrl_regs.c
index ca67551..e6c2a5c 100644
--- a/cpu/mpc8xxx/ddr/ctrl_regs.c
+++ b/cpu/mpc8xxx/ddr/ctrl_regs.c
@@ -520,7 +520,7 @@
unsigned int wr; /* Write Recovery */
unsigned int dll_res; /* DLL Reset */
unsigned int mode; /* Normal=0 or Test=1 */
- unsigned int caslat; /* CAS# latency */
+ unsigned int caslat = 0;/* CAS# latency */
/* BT: Burst Type (0=Sequential, 1=Interleaved) */
unsigned int bt;
unsigned int bl; /* BL: Burst Length */
@@ -572,7 +572,9 @@
0x6, /* 2.5 clocks */
0x3 /* 3.0 clocks */
};
- caslat = mode_caslat_table[cas_latency - 1];
+ caslat = mode_caslat_table[cas_latency - 1];
+ } else {
+ printf("Warning: unknown cas_latency %d\n", cas_latency);
}
#elif defined(CONFIG_FSL_DDR2)
caslat = cas_latency;