diff options
Diffstat (limited to 'include/dt-bindings/memory/mpc83xx-sdram.h')
| -rw-r--r-- | include/dt-bindings/memory/mpc83xx-sdram.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/include/dt-bindings/memory/mpc83xx-sdram.h b/include/dt-bindings/memory/mpc83xx-sdram.h new file mode 100644 index 0000000..7d4ce01 --- /dev/null +++ b/include/dt-bindings/memory/mpc83xx-sdram.h @@ -0,0 +1,161 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2018 + * Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc + */ + +#ifndef DT_BINDINGS_MPC83XX_SDRAM_H +#define DT_BINDINGS_MPC83XX_SDRAM_H + +/* DDR Control Driver register */ + +#define DSO_DISABLE 0 +#define DSO_ENABLE 1 + +#define DSO_P_IMPEDANCE_HIGHEST_Z 0x0 +#define DSO_P_IMPEDANCE_MUCH_HIGHER_Z 0x8 +#define DSO_P_IMPEDANCE_HIGHER_Z 0xC +#define DSO_P_IMPEDANCE_NOMINAL 0xE +#define DSO_P_IMPEDANCE_LOWER_Z 0xF + +#define DSO_N_IMPEDANCE_HIGHEST_Z 0x0 +#define DSO_N_IMPEDANCE_MUCH_HIGHER_Z 0x8 +#define DSO_N_IMPEDANCE_HIGHER_Z 0xC +#define DSO_N_IMPEDANCE_NOMINAL 0xE +#define DSO_N_IMPEDANCE_LOWER_Z 0xF + +#define ODT_TERMINATION_75_OHM 0 +#define ODT_TERMINATION_150_OHM 1 + +#define DDR_TYPE_DDR2_1_8_VOLT 0 +#define DDR_TYPE_DDR1_2_5_VOLT 1 + +#define MVREF_SEL_EXTERNAL 0 +#define MVREF_SEL_INTERNAL_GVDD 1 + +#define M_ODR_ENABLE 0 +#define M_ODR_DISABLE 1 + +/* CS config register */ + +#define AUTO_PRECHARGE_ENABLE 0x00800000 +#define AUTO_PRECHARGE_DISABLE 0x00000000 + +#define ODT_RD_NEVER 0x00000000 +#define ODT_RD_ONLY_CURRENT 0x00100000 +#define ODT_RD_ONLY_OTHER_CS 0x00200000 +#define ODT_RD_ONLY_OTHER_DIMM 0x00300000 +#define ODT_RD_ALL 0x00400000 + +#define ODT_WR_NEVER 0x00000000 +#define ODT_WR_ONLY_CURRENT 0x00010000 +#define ODT_WR_ONLY_OTHER_CS 0x00020000 +#define ODT_WR_ONLY_OTHER_DIMM 0x00030000 +#define ODT_WR_ALL 0x00040000 + +/* DDR SDRAM Clock Control register */ + +#define CLOCK_ADJUST_025 0x01000000 +#define CLOCK_ADJUST_05 0x02000000 +#define CLOCK_ADJUST_075 0x03000000 +#define CLOCK_ADJUST_1 0x04000000 + +#define CASLAT_20 0x3 /* CAS latency = 2.0 */ +#define CASLAT_25 0x4 /* CAS latency = 2.5 */ +#define CASLAT_30 0x5 /* CAS latency = 3.0 */ +#define CASLAT_35 0x6 /* CAS latency = 3.5 */ +#define CASLAT_40 0x7 /* CAS latency = 4.0 */ +#define CASLAT_45 0x8 /* CAS latency = 4.5 */ +#define CASLAT_50 0x9 /* CAS latency = 5.0 */ +#define CASLAT_55 0xa /* CAS latency = 5.5 */ +#define CASLAT_60 0xb /* CAS latency = 6.0 */ +#define CASLAT_65 0xc /* CAS latency = 6.5 */ +#define CASLAT_70 0xd /* CAS latency = 7.0 */ +#define CASLAT_75 0xe /* CAS latency = 7.5 */ +#define CASLAT_80 0xf /* CAS latency = 8.0 */ + +/* DDR SDRAM Timing Configuration 2 register */ + +#define READ_LAT_PLUS_1 0x0 +#define READ_LAT 0x2 +#define READ_LAT_PLUS_1_4 0x3 +#define READ_LAT_PLUS_1_2 0x4 +#define READ_LAT_PLUS_3_4 0x5 +#define READ_LAT_PLUS_5_4 0x7 +#define READ_LAT_PLUS_3_2 0x8 +#define READ_LAT_PLUS_7_4 0x9 +#define READ_LAT_PLUS_2 0xA +#define READ_LAT_PLUS_9_4 0xB +#define READ_LAT_PLUS_5_2 0xC +#define READ_LAT_PLUS_11_4 0xD +#define READ_LAT_PLUS_3 0xE +#define READ_LAT_PLUS_13_4 0xF +#define READ_LAT_PLUS_7_2 0x10 +#define READ_LAT_PLUS_15_4 0x11 +#define READ_LAT_PLUS_4 0x12 +#define READ_LAT_PLUS_17_4 0x13 +#define READ_LAT_PLUS_9_2 0x14 +#define READ_LAT_PLUS_19_4 0x15 + +#define CLOCK_DELAY_0 0x0 +#define CLOCK_DELAY_1_4 0x1 +#define CLOCK_DELAY_1_2 0x2 +#define CLOCK_DELAY_3_4 0x3 +#define CLOCK_DELAY_1 0x4 +#define CLOCK_DELAY_5_4 0x5 +#define CLOCK_DELAY_3_2 0x6 + +/* DDR SDRAM Control Configuration */ + +#define SREN_DISABLE 0x0 +#define SREN_ENABLE 0x1 + +#define ECC_DISABLE 0x0 +#define ECC_ENABLE 0x1 + +#define RD_DISABLE 0x0 +#define RD_ENABLE 0x1 + +#define TYPE_DDR1 0x2 +#define TYPE_DDR2 0x3 + +#define DYN_PWR_DISABLE 0x0 +#define DYN_PWR_ENABLE 0x1 + +#define DATA_BUS_WIDTH_16 0x1 +#define DATA_BUS_WIDTH_32 0x2 + +#define NCAP_DISABLE 0x0 +#define NCAP_ENABLE 0x1 + +#define TIMING_1T 0x0 +#define TIMING_2T 0x1 + +#define INTERLEAVE_NONE 0x0 +#define INTERLEAVE_1_AND_2 0x1 + +#define PRECHARGE_MA_10 0x0 +#define PRECHARGE_MA_8 0x1 + +#define STRENGTH_FULL 0x0 +#define STRENGTH_HALF 0x1 + +#define INITIALIZATION_DONT_BYPASS 0x0 +#define INITIALIZATION_BYPASS 0x1 + +/* DDR SDRAM Control Configuration 2 register */ + +#define MODE_NORMAL 0x0 +#define MODE_REFRESH 0x1 + +#define DLL_RESET_ENABLE 0x0 +#define DLL_RESET_DISABLE 0x1 + +#define DQS_TRUE 0x0 + +#define ODT_ASSERT_NEVER 0x0 +#define ODT_ASSERT_WRITES 0x1 +#define ODT_ASSERT_READS 0x2 +#define ODT_ASSERT_ALWAYS 0x3 + +#endif |