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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>
This commit is contained in:
York Sun 2012-10-08 07:44:16 +00:00 committed by Andy Fleming
parent d1001e3f0c
commit 379c5145ef
1 changed files with 8 additions and 2 deletions
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10
arch/powerpc/cpu/mpc85xx/cpu.c
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@ -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 */