diff options
Diffstat (limited to 'cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c')
| -rw-r--r-- | cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c b/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c index 83b9883..1e3e20d 100644 --- a/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c +++ b/cpu/ppc4xx/4xx_ibm_ddr2_autocalib.c @@ -53,11 +53,11 @@ #define MAXBXCF 4 #define SDRAM_RXBAS_SHIFT_1M 20 -#if defined(CFG_DECREMENT_PATTERNS) +#if defined(CONFIG_SYS_DECREMENT_PATTERNS) #define NUMMEMTESTS 24 #else #define NUMMEMTESTS 8 -#endif /* CFG_DECREMENT_PATTERNS */ +#endif /* CONFIG_SYS_DECREMENT_PATTERNS */ #define NUMLOOPS 1 /* configure as you deem approporiate */ #define NUMMEMWORDS 16 @@ -174,6 +174,23 @@ static inline void ecc_clear_status_reg(void) #endif } +/* + * Reset and relock memory DLL after SDRAM_CLKTR change + */ +static inline void relock_memory_DLL(void) +{ + u32 reg; + + mtsdram(SDRAM_MCOPT2, SDRAM_MCOPT2_IPTR_EXECUTE); + + do { + mfsdram(SDRAM_MCSTAT, reg); + } while (!(reg & SDRAM_MCSTAT_MIC_COMP)); + + mfsdram(SDRAM_MCOPT2, reg); + mtsdram(SDRAM_MCOPT2, reg | SDRAM_MCOPT2_DCEN_ENABLE); +} + static int ecc_check_status_reg(void) { u32 ecc_status; @@ -237,7 +254,7 @@ static int short_mem_test(u32 *base_address) 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55}, -#if defined(CFG_DECREMENT_PATTERNS) +#if defined(CONFIG_SYS_DECREMENT_PATTERNS) /* 8 */ {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, @@ -302,7 +319,7 @@ static int short_mem_test(u32 *base_address) 0xfff0fff0, 0xfff0fff0, 0xfff0fff0, 0xfff0fff0, 0xfff0fff0, 0xfff0fff0, 0xfff0fff0, 0xfff0fff0, 0xfff0fff0, 0xfff0fffe, 0xfff0fff0, 0xfff0fff0}, -#endif /* CFG_DECREMENT_PATTERNS */ +#endif /* CONFIG_SYS_DECREMENT_PATTERNS */ }; mfsdram(SDRAM_MCOPT1, ecc_mode); @@ -981,6 +998,8 @@ u32 DQS_autocalibration(void) mtsdram(SDRAM_CLKTR, clkp << 30); + relock_memory_DLL(); + putc('\b'); putc(slash[loopi++ % 8]); @@ -1170,6 +1189,8 @@ u32 DQS_autocalibration(void) mtsdram(SDRAM_CLKTR, tcal.clocks.clktr << 30); + relock_memory_DLL(); + mfsdram(SDRAM_RQDC, rqdc_reg); rqdc_reg &= ~(SDRAM_RQDC_RQFD_MASK); mtsdram(SDRAM_RQDC, rqdc_reg | |