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authorYork Sun <yorksun@freescale.com>2012-10-08 07:44:16 +0000
committerAndy Fleming <afleming@freescale.com>2012-10-22 14:31:20 -0500
commit379c5145ef8f3adbcfeb0a47503838627959cb67 (patch)
treed3125ad2d838363ae8b4eb617a38620f19c6e12c /arch/powerpc/cpu
parentd1001e3f0ce0059a55a870c42bac8aba2e4befec (diff)
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powerpc/corenet2: fix mismatch DDR sync bit from RCW
Corenet 2nd generation Chassis doesn't have ddr_sync bit in RCW. Only async mode is supported. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
Diffstat (limited to 'arch/powerpc/cpu')
-rw-r--r--arch/powerpc/cpu/mpc85xx/cpu.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c
index 40cce1d..f493483 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu.c
@@ -60,7 +60,8 @@ int checkcpu (void)
uint major, minor;
struct cpu_type *cpu;
char buf1[32], buf2[32];
-#if defined(CONFIG_DDR_CLK_FREQ) || defined(CONFIG_FSL_CORENET)
+#if defined(CONFIG_DDR_CLK_FREQ) || \
+ (defined(CONFIG_FSL_CORENET) && !defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2))
volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
#endif /* CONFIG_FSL_CORENET */
#ifdef CONFIG_DDR_CLK_FREQ
@@ -68,8 +69,13 @@ int checkcpu (void)
>> MPC85xx_PORPLLSR_DDR_RATIO_SHIFT;
#else
#ifdef CONFIG_FSL_CORENET
- u32 ddr_sync = ((gur->rcwsr[5]) & FSL_CORENET_RCWSR5_DDR_SYNC)
+ u32 ddr_sync ;
+#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2
+ ddr_sync = 0; /* only async mode is supported */
+#else
+ ddr_sync = ((gur->rcwsr[5]) & FSL_CORENET_RCWSR5_DDR_SYNC)
>> FSL_CORENET_RCWSR5_DDR_SYNC_SHIFT;
+#endif /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */
#else
u32 ddr_ratio = 0;
#endif /* CONFIG_FSL_CORENET */