diff options
Diffstat (limited to 'arch/blackfin/include/asm/mem_init.h')
| -rw-r--r-- | arch/blackfin/include/asm/mem_init.h | 458 |
1 files changed, 297 insertions, 161 deletions
diff --git a/arch/blackfin/include/asm/mem_init.h b/arch/blackfin/include/asm/mem_init.h index 61f7487fbf1..c865b33eeb6 100644 --- a/arch/blackfin/include/asm/mem_init.h +++ b/arch/blackfin/include/asm/mem_init.h @@ -6,11 +6,13 @@ * Licensed under the GPL-2 or later. */ +#ifndef __MEM_INIT_H__ +#define __MEM_INIT_H__ + #if defined(EBIU_SDGCTL) #if defined(CONFIG_MEM_MT48LC16M16A2TG_75) || \ defined(CONFIG_MEM_MT48LC64M4A2FB_7E) || \ defined(CONFIG_MEM_MT48LC16M8A2TG_75) || \ - defined(CONFIG_MEM_GENERIC_BOARD) || \ defined(CONFIG_MEM_MT48LC32M8A2_75) || \ defined(CONFIG_MEM_MT48LC8M32B2B5_7) || \ defined(CONFIG_MEM_MT48LC32M16A2TG_75) || \ @@ -59,7 +61,7 @@ #define SDRAM_tRP TRP_1 #define SDRAM_tRP_num 1 #define SDRAM_tRAS TRAS_4 -#define SDRAM_tRAS_num 3 +#define SDRAM_tRAS_num 4 #define SDRAM_tRCD TRCD_1 #define SDRAM_tWR TWR_2 #endif @@ -89,6 +91,85 @@ #endif #endif +/* + * The BF526-EZ-Board changed SDRAM chips between revisions, + * so we use below timings to accommodate both. + */ +#if defined(CONFIG_MEM_MT48H32M16LFCJ_75) +#if (CONFIG_SCLK_HZ > 119402985) +#define SDRAM_tRP TRP_2 +#define SDRAM_tRP_num 2 +#define SDRAM_tRAS TRAS_8 +#define SDRAM_tRAS_num 8 +#define SDRAM_tRCD TRCD_2 +#define SDRAM_tWR TWR_2 +#endif +#if (CONFIG_SCLK_HZ > 104477612) && (CONFIG_SCLK_HZ <= 119402985) +#define SDRAM_tRP TRP_2 +#define SDRAM_tRP_num 2 +#define SDRAM_tRAS TRAS_7 +#define SDRAM_tRAS_num 7 +#define SDRAM_tRCD TRCD_2 +#define SDRAM_tWR TWR_2 +#endif +#if (CONFIG_SCLK_HZ > 89552239) && (CONFIG_SCLK_HZ <= 104477612) +#define SDRAM_tRP TRP_2 +#define SDRAM_tRP_num 2 +#define SDRAM_tRAS TRAS_6 +#define SDRAM_tRAS_num 6 +#define SDRAM_tRCD TRCD_2 +#define SDRAM_tWR TWR_2 +#endif +#if (CONFIG_SCLK_HZ > 74626866) && (CONFIG_SCLK_HZ <= 89552239) +#define SDRAM_tRP TRP_2 +#define SDRAM_tRP_num 2 +#define SDRAM_tRAS TRAS_5 +#define SDRAM_tRAS_num 5 +#define SDRAM_tRCD TRCD_2 +#define SDRAM_tWR TWR_2 +#endif +#if (CONFIG_SCLK_HZ > 66666667) && (CONFIG_SCLK_HZ <= 74626866) +#define SDRAM_tRP TRP_2 +#define SDRAM_tRP_num 2 +#define SDRAM_tRAS TRAS_4 +#define SDRAM_tRAS_num 4 +#define SDRAM_tRCD TRCD_2 +#define SDRAM_tWR TWR_2 +#endif +#if (CONFIG_SCLK_HZ > 59701493) && (CONFIG_SCLK_HZ <= 66666667) +#define SDRAM_tRP TRP_2 +#define SDRAM_tRP_num 2 +#define SDRAM_tRAS TRAS_4 +#define SDRAM_tRAS_num 4 +#define SDRAM_tRCD TRCD_1 +#define SDRAM_tWR TWR_2 +#endif +#if (CONFIG_SCLK_HZ > 44776119) && (CONFIG_SCLK_HZ <= 59701493) +#define SDRAM_tRP TRP_2 +#define SDRAM_tRP_num 2 +#define SDRAM_tRAS TRAS_3 +#define SDRAM_tRAS_num 3 +#define SDRAM_tRCD TRCD_1 +#define SDRAM_tWR TWR_2 +#endif +#if (CONFIG_SCLK_HZ > 29850746) && (CONFIG_SCLK_HZ <= 44776119) +#define SDRAM_tRP TRP_1 +#define SDRAM_tRP_num 1 +#define SDRAM_tRAS TRAS_3 +#define SDRAM_tRAS_num 3 +#define SDRAM_tRCD TRCD_1 +#define SDRAM_tWR TWR_2 +#endif +#if (CONFIG_SCLK_HZ <= 29850746) +#define SDRAM_tRP TRP_1 +#define SDRAM_tRP_num 1 +#define SDRAM_tRAS TRAS_2 +#define SDRAM_tRAS_num 2 +#define SDRAM_tRCD TRCD_1 +#define SDRAM_tWR TWR_2 +#endif +#endif + #if defined(CONFIG_MEM_MT48LC16M8A2TG_75) || \ defined(CONFIG_MEM_MT48LC8M32B2B5_7) /*SDRAM INFORMATION: */ @@ -99,7 +180,6 @@ #if defined(CONFIG_MEM_MT48LC32M8A2_75) || \ defined(CONFIG_MEM_MT48LC64M4A2FB_7E) || \ - defined(CONFIG_MEM_GENERIC_BOARD) || \ defined(CONFIG_MEM_MT48LC32M16A2TG_75) || \ defined(CONFIG_MEM_MT48LC16M16A2TG_75) || \ defined(CONFIG_MEM_MT48LC32M8A2_75) @@ -109,6 +189,13 @@ #define SDRAM_CL CL_3 #endif +#if defined(CONFIG_MEM_MT48H32M16LFCJ_75) + /*SDRAM INFORMATION: */ +#define SDRAM_Tref 64 /* Refresh period in milliseconds */ +#define SDRAM_NRA 8192 /* Number of row addresses in SDRAM */ +#define SDRAM_CL CL_2 +#endif + #ifdef CONFIG_BFIN_KERNEL_CLOCK_MEMINIT_CALC /* Equation from section 17 (p17-46) of BF533 HRM */ @@ -162,22 +249,6 @@ #define DDR_tWR DDR_TWR(MIN_DDR_SCLK(15)) #endif -#if defined(CONFIG_MEM_GENERIC_BOARD) -#define DDR_SIZE DEVSZ_512 -#define DDR_WIDTH DEVWD_16 -#define DDR_MAX_tCK 13 - -#define DDR_tRCD DDR_TRCD(3) -#define DDR_tWTR DDR_TWTR(2) -#define DDR_tWR DDR_TWR(2) -#define DDR_tMRD DDR_TMRD(2) -#define DDR_tRP DDR_TRP(3) -#define DDR_tRAS DDR_TRAS(7) -#define DDR_tRC DDR_TRC(10) -#define DDR_tRFC DDR_TRFC(12) -#define DDR_tREFI DDR_TREFI(1288) -#endif - #if (CONFIG_SCLK_HZ < DDR_CLK_HZ(DDR_MAX_tCK)) # error "CONFIG_SCLK_HZ is too small (<DDR_CLK_HZ(DDR_MAX_tCK) Hz)." #elif(CONFIG_SCLK_HZ <= 133333333) @@ -210,155 +281,220 @@ #define PLL_BYPASS 0 #endif -/***************************************Currently Not Being Used *********************************/ +#ifdef CONFIG_BF60x -#if defined(CONFIG_FLASH_SPEED_BWAT) && \ -defined(CONFIG_FLASH_SPEED_BRAT) && \ -defined(CONFIG_FLASH_SPEED_BHT) && \ -defined(CONFIG_FLASH_SPEED_BST) && \ -defined(CONFIG_FLASH_SPEED_BTT) +/* DMC status bits */ +#define IDLE 0x1 +#define MEMINITDONE 0x4 +#define SRACK 0x8 +#define PDACK 0x10 +#define DPDACK 0x20 +#define DLLCALDONE 0x2000 +#define PENDREF 0xF0000 +#define PHYRDPHASE 0xF00000 +#define PHYRDPHASE_OFFSET 20 -#define flash_EBIU_AMBCTL_WAT ((CONFIG_FLASH_SPEED_BWAT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1 -#define flash_EBIU_AMBCTL_RAT ((CONFIG_FLASH_SPEED_BRAT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1 -#define flash_EBIU_AMBCTL_HT ((CONFIG_FLASH_SPEED_BHT * 4) / (4000000000 / CONFIG_SCLK_HZ)) -#define flash_EBIU_AMBCTL_ST ((CONFIG_FLASH_SPEED_BST * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1 -#define flash_EBIU_AMBCTL_TT ((CONFIG_FLASH_SPEED_BTT * 4) / (4000000000 / CONFIG_SCLK_HZ)) + 1 +/* DMC control bits */ +#define LPDDR 0x2 +#define INIT 0x4 +#define SRREQ 0x8 +#define PDREQ 0x10 +#define DPDREQ 0x20 +#define PREC 0x40 +#define ADDRMODE 0x100 +#define RDTOWR 0xE00 +#define PPREF 0x1000 +#define DLLCAL 0x2000 -#if (flash_EBIU_AMBCTL_TT > 3) -#define flash_EBIU_AMBCTL0_TT B0TT_4 -#endif -#if (flash_EBIU_AMBCTL_TT == 3) -#define flash_EBIU_AMBCTL0_TT B0TT_3 -#endif -#if (flash_EBIU_AMBCTL_TT == 2) -#define flash_EBIU_AMBCTL0_TT B0TT_2 -#endif -#if (flash_EBIU_AMBCTL_TT < 2) -#define flash_EBIU_AMBCTL0_TT B0TT_1 -#endif +/* DMC DLL control bits */ +#define DLLCALRDCNT 0xFF +#define DATACYC 0xF00 +#define DATACYC_OFFSET 8 -#if (flash_EBIU_AMBCTL_ST > 3) -#define flash_EBIU_AMBCTL0_ST B0ST_4 -#endif -#if (flash_EBIU_AMBCTL_ST == 3) -#define flash_EBIU_AMBCTL0_ST B0ST_3 -#endif -#if (flash_EBIU_AMBCTL_ST == 2) -#define flash_EBIU_AMBCTL0_ST B0ST_2 -#endif -#if (flash_EBIU_AMBCTL_ST < 2) -#define flash_EBIU_AMBCTL0_ST B0ST_1 -#endif +/* CGU Divisor bits */ +#define CSEL_OFFSET 0 +#define S0SEL_OFFSET 5 +#define SYSSEL_OFFSET 8 +#define S1SEL_OFFSET 13 +#define DSEL_OFFSET 16 +#define OSEL_OFFSET 22 +#define ALGN 0x20000000 +#define UPDT 0x40000000 +#define LOCK 0x80000000 -#if (flash_EBIU_AMBCTL_HT > 2) -#define flash_EBIU_AMBCTL0_HT B0HT_3 -#endif -#if (flash_EBIU_AMBCTL_HT == 2) -#define flash_EBIU_AMBCTL0_HT B0HT_2 -#endif -#if (flash_EBIU_AMBCTL_HT == 1) -#define flash_EBIU_AMBCTL0_HT B0HT_1 -#endif -#if (flash_EBIU_AMBCTL_HT == 0 && CONFIG_FLASH_SPEED_BHT == 0) -#define flash_EBIU_AMBCTL0_HT B0HT_0 -#endif -#if (flash_EBIU_AMBCTL_HT == 0 && CONFIG_FLASH_SPEED_BHT != 0) -#define flash_EBIU_AMBCTL0_HT B0HT_1 -#endif +/* CGU Status bits */ +#define PLLEN 0x1 +#define PLLBP 0x2 +#define PLOCK 0x4 +#define CLKSALGN 0x8 -#if (flash_EBIU_AMBCTL_WAT > 14) -#define flash_EBIU_AMBCTL0_WAT B0WAT_15 -#endif -#if (flash_EBIU_AMBCTL_WAT == 14) -#define flash_EBIU_AMBCTL0_WAT B0WAT_14 -#endif -#if (flash_EBIU_AMBCTL_WAT == 13) -#define flash_EBIU_AMBCTL0_WAT B0WAT_13 -#endif -#if (flash_EBIU_AMBCTL_WAT == 12) -#define flash_EBIU_AMBCTL0_WAT B0WAT_12 -#endif -#if (flash_EBIU_AMBCTL_WAT == 11) -#define flash_EBIU_AMBCTL0_WAT B0WAT_11 -#endif -#if (flash_EBIU_AMBCTL_WAT == 10) -#define flash_EBIU_AMBCTL0_WAT B0WAT_10 -#endif -#if (flash_EBIU_AMBCTL_WAT == 9) -#define flash_EBIU_AMBCTL0_WAT B0WAT_9 -#endif -#if (flash_EBIU_AMBCTL_WAT == 8) -#define flash_EBIU_AMBCTL0_WAT B0WAT_8 -#endif -#if (flash_EBIU_AMBCTL_WAT == 7) -#define flash_EBIU_AMBCTL0_WAT B0WAT_7 -#endif -#if (flash_EBIU_AMBCTL_WAT == 6) -#define flash_EBIU_AMBCTL0_WAT B0WAT_6 -#endif -#if (flash_EBIU_AMBCTL_WAT == 5) -#define flash_EBIU_AMBCTL0_WAT B0WAT_5 -#endif -#if (flash_EBIU_AMBCTL_WAT == 4) -#define flash_EBIU_AMBCTL0_WAT B0WAT_4 -#endif -#if (flash_EBIU_AMBCTL_WAT == 3) -#define flash_EBIU_AMBCTL0_WAT B0WAT_3 -#endif -#if (flash_EBIU_AMBCTL_WAT == 2) -#define flash_EBIU_AMBCTL0_WAT B0WAT_2 -#endif -#if (flash_EBIU_AMBCTL_WAT == 1) -#define flash_EBIU_AMBCTL0_WAT B0WAT_1 -#endif +/* CGU Control bits */ +#define MSEL_MASK 0x7F00 +#define DF_MASK 0x1 -#if (flash_EBIU_AMBCTL_RAT > 14) -#define flash_EBIU_AMBCTL0_RAT B0RAT_15 -#endif -#if (flash_EBIU_AMBCTL_RAT == 14) -#define flash_EBIU_AMBCTL0_RAT B0RAT_14 -#endif -#if (flash_EBIU_AMBCTL_RAT == 13) -#define flash_EBIU_AMBCTL0_RAT B0RAT_13 -#endif -#if (flash_EBIU_AMBCTL_RAT == 12) -#define flash_EBIU_AMBCTL0_RAT B0RAT_12 -#endif -#if (flash_EBIU_AMBCTL_RAT == 11) -#define flash_EBIU_AMBCTL0_RAT B0RAT_11 -#endif -#if (flash_EBIU_AMBCTL_RAT == 10) -#define flash_EBIU_AMBCTL0_RAT B0RAT_10 -#endif -#if (flash_EBIU_AMBCTL_RAT == 9) -#define flash_EBIU_AMBCTL0_RAT B0RAT_9 -#endif -#if (flash_EBIU_AMBCTL_RAT == 8) -#define flash_EBIU_AMBCTL0_RAT B0RAT_8 -#endif -#if (flash_EBIU_AMBCTL_RAT == 7) -#define flash_EBIU_AMBCTL0_RAT B0RAT_7 -#endif -#if (flash_EBIU_AMBCTL_RAT == 6) -#define flash_EBIU_AMBCTL0_RAT B0RAT_6 -#endif -#if (flash_EBIU_AMBCTL_RAT == 5) -#define flash_EBIU_AMBCTL0_RAT B0RAT_5 -#endif -#if (flash_EBIU_AMBCTL_RAT == 4) -#define flash_EBIU_AMBCTL0_RAT B0RAT_4 -#endif -#if (flash_EBIU_AMBCTL_RAT == 3) -#define flash_EBIU_AMBCTL0_RAT B0RAT_3 -#endif -#if (flash_EBIU_AMBCTL_RAT == 2) -#define flash_EBIU_AMBCTL0_RAT B0RAT_2 -#endif -#if (flash_EBIU_AMBCTL_RAT == 1) -#define flash_EBIU_AMBCTL0_RAT B0RAT_1 +struct ddr_config { + u32 ddr_clk; + u32 dmc_ddrctl; + u32 dmc_effctl; + u32 dmc_ddrcfg; + u32 dmc_ddrtr0; + u32 dmc_ddrtr1; + u32 dmc_ddrtr2; + u32 dmc_ddrmr; + u32 dmc_ddrmr1; +}; + +#if defined(CONFIG_MEM_MT47H64M16) +static struct ddr_config ddr_config_table[] __attribute__((section(".data_l1"))) = { + [0] = { + .ddr_clk = 125, + .dmc_ddrctl = 0x00000904, + .dmc_effctl = 0x004400C0, + .dmc_ddrcfg = 0x00000422, + .dmc_ddrtr0 = 0x20705212, + .dmc_ddrtr1 = 0x201003CF, + .dmc_ddrtr2 = 0x00320107, + .dmc_ddrmr = 0x00000422, + .dmc_ddrmr1 = 0x4, + }, + [1] = { + .ddr_clk = 133, + .dmc_ddrctl = 0x00000904, + .dmc_effctl = 0x004400C0, + .dmc_ddrcfg = 0x00000422, + .dmc_ddrtr0 = 0x20806313, + .dmc_ddrtr1 = 0x2013040D, + .dmc_ddrtr2 = 0x00320108, + .dmc_ddrmr = 0x00000632, + .dmc_ddrmr1 = 0x4, + }, + [2] = { + .ddr_clk = 150, + .dmc_ddrctl = 0x00000904, + .dmc_effctl = 0x004400C0, + .dmc_ddrcfg = 0x00000422, + .dmc_ddrtr0 = 0x20A07323, + .dmc_ddrtr1 = 0x20160492, + .dmc_ddrtr2 = 0x00320209, + .dmc_ddrmr = 0x00000632, + .dmc_ddrmr1 = 0x4, + }, + [3] = { + .ddr_clk = 166, + .dmc_ddrctl = 0x00000904, + .dmc_effctl = 0x004400C0, + .dmc_ddrcfg = 0x00000422, + .dmc_ddrtr0 = 0x20A07323, + .dmc_ddrtr1 = 0x2016050E, + .dmc_ddrtr2 = 0x00320209, + .dmc_ddrmr = 0x00000632, + .dmc_ddrmr1 = 0x4, + }, + [4] = { + .ddr_clk = 200, + .dmc_ddrctl = 0x00000904, + .dmc_effctl = 0x004400C0, + .dmc_ddrcfg = 0x00000422, + .dmc_ddrtr0 = 0x20a07323, + .dmc_ddrtr1 = 0x2016050f, + .dmc_ddrtr2 = 0x00320509, + .dmc_ddrmr = 0x00000632, + .dmc_ddrmr1 = 0x4, + }, + [5] = { + .ddr_clk = 225, + .dmc_ddrctl = 0x00000904, + .dmc_effctl = 0x004400C0, + .dmc_ddrcfg = 0x00000422, + .dmc_ddrtr0 = 0x20E0A424, + .dmc_ddrtr1 = 0x302006DB, + .dmc_ddrtr2 = 0x0032020D, + .dmc_ddrmr = 0x00000842, + .dmc_ddrmr1 = 0x4, + }, + [6] = { + .ddr_clk = 250, + .dmc_ddrctl = 0x00000904, + .dmc_effctl = 0x004400C0, + .dmc_ddrcfg = 0x00000422, + .dmc_ddrtr0 = 0x20E0A424, + .dmc_ddrtr1 = 0x3020079E, + .dmc_ddrtr2 = 0x0032050D, + .dmc_ddrmr = 0x00000842, + .dmc_ddrmr1 = 0x4, + }, +}; #endif -#define flash_EBIU_AMBCTL0 \ - (flash_EBIU_AMBCTL0_WAT | flash_EBIU_AMBCTL0_RAT | flash_EBIU_AMBCTL0_HT | \ - flash_EBIU_AMBCTL0_ST | flash_EBIU_AMBCTL0_TT | CONFIG_FLASH_SPEED_RDYEN) +static inline void dmc_enter_self_refresh(void) +{ + if (bfin_read_DMC0_STAT() & MEMINITDONE) { + bfin_write_DMC0_CTL(bfin_read_DMC0_CTL() | SRREQ); + while (!(bfin_read_DMC0_STAT() & SRACK)) + continue; + } +} + +static inline void dmc_exit_self_refresh(void) +{ + if (bfin_read_DMC0_STAT() & MEMINITDONE) { + bfin_write_DMC0_CTL(bfin_read_DMC0_CTL() & ~SRREQ); + while (bfin_read_DMC0_STAT() & SRACK) + continue; + } +} + +static inline void init_cgu(u32 cgu_div, u32 cgu_ctl) +{ + dmc_enter_self_refresh(); + + /* Don't set the same value of MSEL and DF to CGU_CTL */ + if ((bfin_read32(CGU0_CTL) & (MSEL_MASK | DF_MASK)) + != cgu_ctl) { + bfin_write32(CGU0_DIV, cgu_div); + bfin_write32(CGU0_CTL, cgu_ctl); + while ((bfin_read32(CGU0_STAT) & (CLKSALGN | PLLBP)) || + !(bfin_read32(CGU0_STAT) & PLOCK)) + continue; + } + + bfin_write32(CGU0_DIV, cgu_div | UPDT); + while (bfin_read32(CGU0_STAT) & CLKSALGN) + continue; + + dmc_exit_self_refresh(); +} + +static inline void init_dmc(u32 dmc_clk) +{ + int i, dlldatacycle, dll_ctl; + + for (i = 0; i < 7; i++) { + if (ddr_config_table[i].ddr_clk == dmc_clk) { + bfin_write_DMC0_CFG(ddr_config_table[i].dmc_ddrcfg); + bfin_write_DMC0_TR0(ddr_config_table[i].dmc_ddrtr0); + bfin_write_DMC0_TR1(ddr_config_table[i].dmc_ddrtr1); + bfin_write_DMC0_TR2(ddr_config_table[i].dmc_ddrtr2); + bfin_write_DMC0_MR(ddr_config_table[i].dmc_ddrmr); + bfin_write_DMC0_EMR1(ddr_config_table[i].dmc_ddrmr1); + bfin_write_DMC0_EFFCTL(ddr_config_table[i].dmc_effctl); + bfin_write_DMC0_CTL(ddr_config_table[i].dmc_ddrctl); + break; + } + } + + while (!(bfin_read_DMC0_STAT() & MEMINITDONE)) + continue; + + dlldatacycle = (bfin_read_DMC0_STAT() & PHYRDPHASE) >> PHYRDPHASE_OFFSET; + dll_ctl = bfin_read_DMC0_DLLCTL(); + dll_ctl &= ~DATACYC; + bfin_write_DMC0_DLLCTL(dll_ctl | (dlldatacycle << DATACYC_OFFSET)); + + while (!(bfin_read_DMC0_STAT() & DLLCALDONE)) + continue; +} #endif + +#endif /*__MEM_INIT_H__*/ + |