diff options
| -rw-r--r-- | cpu/ppc4xx/44x_spd_ddr2.c | 64 | ||||
| -rw-r--r-- | include/ppc440.h | 25 |
2 files changed, 63 insertions, 26 deletions
diff --git a/cpu/ppc4xx/44x_spd_ddr2.c b/cpu/ppc4xx/44x_spd_ddr2.c index 35b2315..c4da739 100644 --- a/cpu/ppc4xx/44x_spd_ddr2.c +++ b/cpu/ppc4xx/44x_spd_ddr2.c @@ -188,6 +188,7 @@ static void program_initplr(unsigned long *dimm_populated, ddr_cas_id_t selected_cas, int write_recovery); static unsigned long is_ecc_enabled(void); +#ifdef CONFIG_DDR_ECC static void program_ecc(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, unsigned long num_dimm_banks, @@ -195,6 +196,7 @@ static void program_ecc(unsigned long *dimm_populated, static void program_ecc_addr(unsigned long start_address, unsigned long num_bytes, unsigned long tlb_word2_i_value); +#endif static void program_DQS_calibration(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, unsigned long num_dimm_banks); @@ -255,15 +257,6 @@ static void mtdcr_any(u32 dcr, u32 val) } } -static void wait_ddr_idle(void) -{ - u32 val; - - do { - mfsdram(SDRAM_MCSTAT, val); - } while ((val & SDRAM_MCSTAT_IDLE_MASK) == SDRAM_MCSTAT_IDLE_NOT); -} - static unsigned char spd_read(uchar chip, uint addr) { unsigned char data[2]; @@ -491,7 +484,7 @@ long int initdram(int board_type) (val & ~(SDRAM_MEMODE_DIC_MASK | SDRAM_MEMODE_DLL_MASK | SDRAM_MEMODE_RTT_MASK | SDRAM_MEMODE_DQS_MASK)) | (SDRAM_MEMODE_DIC_NORMAL | SDRAM_MEMODE_DLL_ENABLE - | SDRAM_MEMODE_RTT_75OHM | SDRAM_MEMODE_DQS_ENABLE)); + | SDRAM_MEMODE_RTT_150OHM | SDRAM_MEMODE_DQS_ENABLE)); /*------------------------------------------------------------------ * Program Initialization preload registers. @@ -537,10 +530,12 @@ long int initdram(int board_type) *-----------------------------------------------------------------*/ program_DQS_calibration(dimm_populated, iic0_dimm_addr, num_dimm_banks); +#ifdef CONFIG_DDR_ECC /*------------------------------------------------------------------ * If ecc is enabled, initialize the parity bits. *-----------------------------------------------------------------*/ program_ecc(dimm_populated, iic0_dimm_addr, num_dimm_banks, MY_TLB_WORD2_I_ENABLE); +#endif #ifdef DEBUG ppc440sp_sdram_register_dump(); @@ -702,7 +697,7 @@ static void check_frequency(unsigned long *dimm_populated, *-----------------------------------------------------------------*/ get_sys_info(&board_cfg); - mfsdr(sdr_ddr0, sdr_ddrpll); + mfsdr(SDR0_DDR0, sdr_ddrpll); sdram_freq = ((board_cfg.freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll)); /* @@ -877,7 +872,11 @@ static void program_copt1(unsigned long *dimm_populated, unsigned long ddrtype; unsigned long val; +#ifdef CONFIG_DDR_ECC ecc_enabled = TRUE; +#else + ecc_enabled = FALSE; +#endif dimm_32bit = FALSE; dimm_64bit = FALSE; buf0 = FALSE; @@ -1314,7 +1313,7 @@ static void program_mode(unsigned long *dimm_populated, *-----------------------------------------------------------------*/ get_sys_info(&board_cfg); - mfsdr(sdr_ddr0, sdr_ddrpll); + mfsdr(SDR0_DDR0, sdr_ddrpll); sdram_freq = MULDIV64((board_cfg.freqPLB), SDR0_DDR0_DDRM_DECODE(sdr_ddrpll), 1); /*------------------------------------------------------------------ @@ -1463,11 +1462,12 @@ static void program_mode(unsigned long *dimm_populated, mfsdram(SDRAM_MMODE, mmode); mmode = mmode & ~(SDRAM_MMODE_WR_MASK | SDRAM_MMODE_DCL_MASK); - cycle_2_0_clk = MULDIV64(ONE_BILLION, 100, max_2_0_tcyc_ns_x_100); - cycle_2_5_clk = MULDIV64(ONE_BILLION, 100, max_2_5_tcyc_ns_x_100); - cycle_3_0_clk = MULDIV64(ONE_BILLION, 100, max_3_0_tcyc_ns_x_100); - cycle_4_0_clk = MULDIV64(ONE_BILLION, 100, max_4_0_tcyc_ns_x_100); - cycle_5_0_clk = MULDIV64(ONE_BILLION, 100, max_5_0_tcyc_ns_x_100); + /* add 10 here because of rounding problems */ + cycle_2_0_clk = MULDIV64(ONE_BILLION, 100, max_2_0_tcyc_ns_x_100) + 10; + cycle_2_5_clk = MULDIV64(ONE_BILLION, 100, max_2_5_tcyc_ns_x_100) + 10; + cycle_3_0_clk = MULDIV64(ONE_BILLION, 100, max_3_0_tcyc_ns_x_100) + 10; + cycle_4_0_clk = MULDIV64(ONE_BILLION, 100, max_4_0_tcyc_ns_x_100) + 10; + cycle_5_0_clk = MULDIV64(ONE_BILLION, 100, max_5_0_tcyc_ns_x_100) + 10; if (sdram_ddr1 == TRUE) { /* DDR1 */ if ((cas_2_0_available == TRUE) && (sdram_freq <= cycle_2_0_clk)) { @@ -1498,7 +1498,11 @@ static void program_mode(unsigned long *dimm_populated, } else { printf("ERROR: Cannot find a supported CAS latency with the installed DIMMs.\n"); printf("Only DIMMs DDR2 with CAS latencies of 3.0, 4.0, and 5.0 are supported.\n"); - printf("Make sure the PLB speed is within the supported range of the DIMMs.\n\n"); + printf("Make sure the PLB speed is within the supported range of the DIMMs.\n"); + printf("cas3=%d cas4=%d cas5=%d\n", + cas_3_0_available, cas_4_0_available, cas_5_0_available); + printf("sdram_freq=%d cycle3=%d cycle4=%d cycle5=%d\n\n", + sdram_freq, cycle_3_0_clk, cycle_4_0_clk, cycle_5_0_clk); hang(); } } @@ -1575,7 +1579,7 @@ static void program_rtr(unsigned long *dimm_populated, /*------------------------------------------------------------------ * Set the SDRAM Refresh Timing Register, SDRAM_RTR *-----------------------------------------------------------------*/ - mfsdr(sdr_ddr0, sdr_ddrpll); + mfsdr(SDR0_DDR0, sdr_ddrpll); sdram_freq = ((board_cfg.freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll)); max_refresh_rate = 0; @@ -1661,7 +1665,7 @@ static void program_tr(unsigned long *dimm_populated, *-----------------------------------------------------------------*/ get_sys_info(&board_cfg); - mfsdr(sdr_ddr0, sdr_ddrpll); + mfsdr(SDR0_DDR0, sdr_ddrpll); sdram_freq = ((board_cfg.freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll)); /*------------------------------------------------------------------ @@ -2069,7 +2073,7 @@ static void program_memory_queue(unsigned long *dimm_populated, * Set the sizes *-----------------------------------------------------------------*/ baseadd_size = 0; - rank_size_bytes = 1024 * 1024 * rank_size_id; + rank_size_bytes = 4 * 1024 * 1024 * rank_size_id; switch (rank_size_id) { case 0x02: baseadd_size |= SDRAM_RXBAS_SDSZ_8; @@ -2106,8 +2110,8 @@ static void program_memory_queue(unsigned long *dimm_populated, for (i = 0; i < num_ranks; i++) { mtdcr_any(rank_reg+i+dimm_num+bank_0_populated, - (rank_base_addr & SDRAM_RXBAS_SDBA_MASK) | - baseadd_size); + (SDRAM_RXBAS_SDBA_ENCODE(rank_base_addr) | + baseadd_size)); rank_base_addr += rank_size_bytes; } } @@ -2130,9 +2134,10 @@ static unsigned long is_ecc_enabled(void) ecc = max(ecc, SDRAM_MCOPT1_MCHK_CHK_DECODE(val)); } - return(ecc); + return ecc; } +#ifdef CONFIG_DDR_ECC /*-----------------------------------------------------------------------------+ * program_ecc. *-----------------------------------------------------------------------------*/ @@ -2208,6 +2213,15 @@ static void check_ecc(void) } #endif +static void wait_ddr_idle(void) +{ + u32 val; + + do { + mfsdram(SDRAM_MCSTAT, val); + } while ((val & SDRAM_MCSTAT_IDLE_MASK) == SDRAM_MCSTAT_IDLE_NOT); +} + /*-----------------------------------------------------------------------------+ * program_ecc_addr. *-----------------------------------------------------------------------------*/ @@ -2276,6 +2290,7 @@ static void program_ecc_addr(unsigned long start_address, #endif } } +#endif /*-----------------------------------------------------------------------------+ * program_DQS_calibration. @@ -2531,7 +2546,6 @@ static void DQS_calibration_process(void) } } /* for rffd */ - /*------------------------------------------------------------------ * Set the average RFFD value *-----------------------------------------------------------------*/ diff --git a/include/ppc440.h b/include/ppc440.h index 1c7f11c..5fe4076 100644 --- a/include/ppc440.h +++ b/include/ppc440.h @@ -417,7 +417,9 @@ #define SDR0_PEGPLLSET1 0x000003A0 /* PE Pll LC Tank Setting1 */ #define SDR0_PEGPLLSET2 0x000003A1 /* PE Pll LC Tank Setting2 */ #define SDR0_PEGPLLSTS 0x000003A2 /* PE Pll LC Tank Status */ +#endif /* CONFIG_440SPE */ +#if defined(CONFIG_440SP) || defined(CONFIG_440SPE) /*----------------------------------------------------------------------------+ | SDRAM Controller +----------------------------------------------------------------------------*/ @@ -453,9 +455,16 @@ /*-----------------------------------------------------------------------------+ | Memory Bank 0-7 configuration +-----------------------------------------------------------------------------*/ -#define SDRAM_RXBAS_SDBA_MASK 0xFF800000 /* Base address */ +#if defined(CONFIG_440SPE) +#define SDRAM_RXBAS_SDBA_MASK 0xFFE00000 /* Base address */ #define SDRAM_RXBAS_SDBA_ENCODE(n) ((((unsigned long)(n))&0xFFE00000)>>2) #define SDRAM_RXBAS_SDBA_DECODE(n) ((((unsigned long)(n))&0xFFE00000)<<2) +#endif /* CONFIG_440SPE */ +#if defined(CONFIG_440SP) +#define SDRAM_RXBAS_SDBA_MASK 0xFF800000 /* Base address */ +#define SDRAM_RXBAS_SDBA_ENCODE(n) ((((unsigned long)(n))&0xFF800000)) +#define SDRAM_RXBAS_SDBA_DECODE(n) ((((unsigned long)(n))&0xFF800000)) +#endif /* CONFIG_440SP */ #define SDRAM_RXBAS_SDSZ_MASK 0x0000FFC0 /* Size */ #define SDRAM_RXBAS_SDSZ_ENCODE(n) ((((unsigned long)(n))&0x3FF)<<6) #define SDRAM_RXBAS_SDSZ_DECODE(n) ((((unsigned long)(n))>>6)&0x3FF) @@ -2167,6 +2176,20 @@ /*-----------------------------------------------------------------------------+ | SDR0 Bit Settings +-----------------------------------------------------------------------------*/ +#if defined(CONFIG_440SP) +#define SDR0_SRST 0x0200 + +#define SDR0_DDR0 0x00E1 +#define SDR0_DDR0_DPLLRST 0x80000000 +#define SDR0_DDR0_DDRM_MASK 0x60000000 +#define SDR0_DDR0_DDRM_DDR1 0x20000000 +#define SDR0_DDR0_DDRM_DDR2 0x40000000 +#define SDR0_DDR0_DDRM_ENCODE(n) ((((unsigned long)(n))&0x03)<<29) +#define SDR0_DDR0_DDRM_DECODE(n) ((((unsigned long)(n))>>29)&0x03) +#define SDR0_DDR0_TUNE_ENCODE(n) ((((unsigned long)(n))&0x2FF)<<0) +#define SDR0_DDR0_TUNE_DECODE(n) ((((unsigned long)(n))>>0)&0x2FF) +#endif + #if defined(CONFIG_440SPE) #define SDR0_CP440 0x0180 #define SDR0_CP440_ERPN_MASK 0x30000000 |