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powerpc/mpc85xx: Add CONFIG_DDR_CLK_FREQ for corenet platform

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New corenet platforms with chassis2 have separated DDR clock inputs. Use
CONFIG_DDR_CLK_FREQ for DDR clock. This patch also cleans up the logic of
detecting and displaying synchronous vs asynchronous mode.

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 07:44:31 +00:00 committed by Andy Fleming
parent ffd06e0231
commit 98ffa19053
2 changed files with 22 additions and 12 deletions
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30
arch/powerpc/cpu/mpc85xx/cpu.c
View file

@ -60,26 +60,32 @@ 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) && !defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2))
#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 */
/*
* Cornet platforms use ddr sync bit in RCW to indicate sync vs async
* mode. Previous platform use ddr ratio to do the same. This
* information is only for display here.
*/
#ifdef CONFIG_FSL_CORENET
#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2
u32 ddr_sync = 0; /* only async mode is supported */
#else
u32 ddr_sync = ((gur->rcwsr[5]) & FSL_CORENET_RCWSR5_DDR_SYNC)
>> FSL_CORENET_RCWSR5_DDR_SYNC_SHIFT;
#endif /* CONFIG_SYS_FSL_QORIQ_CHASSIS2 */
#else /* CONFIG_FSL_CORENET */
#ifdef CONFIG_DDR_CLK_FREQ
u32 ddr_ratio = ((gur->porpllsr) & MPC85xx_PORPLLSR_DDR_RATIO)
>> MPC85xx_PORPLLSR_DDR_RATIO_SHIFT;
#else
#ifdef CONFIG_FSL_CORENET
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 */
#endif /* CONFIG_DDR_CLK_FREQ */
#endif /* CONFIG_FSL_CORENET */
unsigned int i, core, nr_cores = cpu_numcores();
u32 mask = cpu_mask();

4
arch/powerpc/cpu/mpc85xx/speed.c
View file

@ -82,7 +82,11 @@ void get_sys_info (sys_info_t * sysInfo)
uint mem_pll_rat;
sysInfo->freqSystemBus = sysclk;
#ifdef CONFIG_DDR_CLK_FREQ
sysInfo->freqDDRBus = CONFIG_DDR_CLK_FREQ;
#else
sysInfo->freqDDRBus = sysclk;
#endif
sysInfo->freqSystemBus *= (in_be32(&gur->rcwsr[0]) >> 25) & 0x1f;
mem_pll_rat = (in_be32(&gur->rcwsr[0]) >>