| /* |
| * arch/blackfin/include/asm/mem_init.h - reprogram clocks / memory |
| * |
| * Copyright 2004-2008 Analog Devices Inc. |
| * |
| * Licensed under the GPL-2 or later. |
| */ |
| |
| #if defined(EBIU_SDGCTL) |
| #if defined(CONFIG_MEM_MT48LC16M16A2TG_75) || \ |
| defined(CONFIG_MEM_MT48LC64M4A2FB_7E) || \ |
| defined(CONFIG_MEM_MT48LC16M8A2TG_75) || \ |
| defined(CONFIG_MEM_MT48LC32M8A2_75) || \ |
| defined(CONFIG_MEM_MT48LC8M32B2B5_7) || \ |
| defined(CONFIG_MEM_MT48LC32M16A2TG_75) || \ |
| defined(CONFIG_MEM_MT48LC32M8A2_75) |
| #if (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 > 104477612) && (CONFIG_SCLK_HZ <= 119402985) |
| #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 > 89552239) && (CONFIG_SCLK_HZ <= 104477612) |
| #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 > 74626866) && (CONFIG_SCLK_HZ <= 89552239) |
| #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 > 66666667) && (CONFIG_SCLK_HZ <= 74626866) |
| #define SDRAM_tRP TRP_2 |
| #define SDRAM_tRP_num 2 |
| #define SDRAM_tRAS TRAS_3 |
| #define SDRAM_tRAS_num 3 |
| #define SDRAM_tRCD TRCD_2 |
| #define SDRAM_tWR TWR_2 |
| #endif |
| #if (CONFIG_SCLK_HZ > 59701493) && (CONFIG_SCLK_HZ <= 66666667) |
| #define SDRAM_tRP TRP_1 |
| #define SDRAM_tRP_num 1 |
| #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_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) && (CONFIG_SCLK_HZ <= 44776119) |
| #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 |
| #if (CONFIG_SCLK_HZ <= 29850746) |
| #define SDRAM_tRP TRP_1 |
| #define SDRAM_tRP_num 1 |
| #define SDRAM_tRAS TRAS_1 |
| #define SDRAM_tRAS_num 1 |
| #define SDRAM_tRCD TRCD_1 |
| #define SDRAM_tWR TWR_2 |
| #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: */ |
| #define SDRAM_Tref 64 /* Refresh period in milliseconds */ |
| #define SDRAM_NRA 4096 /* Number of row addresses in SDRAM */ |
| #define SDRAM_CL CL_3 |
| #endif |
| |
| #if defined(CONFIG_MEM_MT48LC32M8A2_75) || \ |
| defined(CONFIG_MEM_MT48LC64M4A2FB_7E) || \ |
| defined(CONFIG_MEM_MT48LC32M16A2TG_75) || \ |
| defined(CONFIG_MEM_MT48LC16M16A2TG_75) || \ |
| defined(CONFIG_MEM_MT48LC32M8A2_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_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 */ |
| #define mem_SDRRC (((CONFIG_SCLK_HZ / 1000) * SDRAM_Tref) / SDRAM_NRA) - (SDRAM_tRAS_num + SDRAM_tRP_num) |
| |
| /* Enable SCLK Out */ |
| #define mem_SDGCTL (SCTLE | SDRAM_CL | SDRAM_tRAS | SDRAM_tRP | SDRAM_tRCD | SDRAM_tWR | PSS) |
| #else |
| #define mem_SDRRC CONFIG_MEM_SDRRC |
| #define mem_SDGCTL CONFIG_MEM_SDGCTL |
| #endif |
| #endif |
| |
| |
| #if defined(EBIU_DDRCTL0) |
| #define MIN_DDR_SCLK(x) (x*(CONFIG_SCLK_HZ/1000/1000)/1000 + 1) |
| #define MAX_DDR_SCLK(x) (x*(CONFIG_SCLK_HZ/1000/1000)/1000) |
| #define DDR_CLK_HZ(x) (1000*1000*1000/x) |
| |
| #if defined(CONFIG_MEM_MT46V32M16_6T) |
| #define DDR_SIZE DEVSZ_512 |
| #define DDR_WIDTH DEVWD_16 |
| #define DDR_MAX_tCK 13 |
| |
| #define DDR_tRC DDR_TRC(MIN_DDR_SCLK(60)) |
| #define DDR_tRAS DDR_TRAS(MIN_DDR_SCLK(42)) |
| #define DDR_tRP DDR_TRP(MIN_DDR_SCLK(15)) |
| #define DDR_tRFC DDR_TRFC(MIN_DDR_SCLK(72)) |
| #define DDR_tREFI DDR_TREFI(MAX_DDR_SCLK(7800)) |
| |
| #define DDR_tRCD DDR_TRCD(MIN_DDR_SCLK(15)) |
| #define DDR_tWTR DDR_TWTR(1) |
| #define DDR_tMRD DDR_TMRD(MIN_DDR_SCLK(12)) |
| #define DDR_tWR DDR_TWR(MIN_DDR_SCLK(15)) |
| #endif |
| |
| #if defined(CONFIG_MEM_MT46V32M16_5B) |
| #define DDR_SIZE DEVSZ_512 |
| #define DDR_WIDTH DEVWD_16 |
| #define DDR_MAX_tCK 13 |
| |
| #define DDR_tRC DDR_TRC(MIN_DDR_SCLK(55)) |
| #define DDR_tRAS DDR_TRAS(MIN_DDR_SCLK(40)) |
| #define DDR_tRP DDR_TRP(MIN_DDR_SCLK(15)) |
| #define DDR_tRFC DDR_TRFC(MIN_DDR_SCLK(70)) |
| #define DDR_tREFI DDR_TREFI(MAX_DDR_SCLK(7800)) |
| |
| #define DDR_tRCD DDR_TRCD(MIN_DDR_SCLK(15)) |
| #define DDR_tWTR DDR_TWTR(2) |
| #define DDR_tMRD DDR_TMRD(MIN_DDR_SCLK(10)) |
| #define DDR_tWR DDR_TWR(MIN_DDR_SCLK(15)) |
| #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) |
| # define DDR_CL CL_2 |
| #else |
| # error "CONFIG_SCLK_HZ is too large (>133333333 Hz)." |
| #endif |
| |
| #ifdef CONFIG_BFIN_KERNEL_CLOCK_MEMINIT_CALC |
| #define mem_DDRCTL0 (DDR_tRP | DDR_tRAS | DDR_tRC | DDR_tRFC | DDR_tREFI) |
| #define mem_DDRCTL1 (DDR_DATWIDTH | EXTBANK_1 | DDR_SIZE | DDR_WIDTH | DDR_tWTR \ |
| | DDR_tMRD | DDR_tWR | DDR_tRCD) |
| #define mem_DDRCTL2 DDR_CL |
| #else |
| #define mem_DDRCTL0 CONFIG_MEM_DDRCTL0 |
| #define mem_DDRCTL1 CONFIG_MEM_DDRCTL1 |
| #define mem_DDRCTL2 CONFIG_MEM_DDRCTL2 |
| #endif |
| #endif |
| |
| #if defined CONFIG_CLKIN_HALF |
| #define CLKIN_HALF 1 |
| #else |
| #define CLKIN_HALF 0 |
| #endif |
| |
| #if defined CONFIG_PLL_BYPASS |
| #define PLL_BYPASS 1 |
| #else |
| #define PLL_BYPASS 0 |
| #endif |
