1*c74dda8bSAngelo Dureghello/* 2*c74dda8bSAngelo Dureghello * Board-specific sbf ddr/sdram init. 3*c74dda8bSAngelo Dureghello * 4*c74dda8bSAngelo Dureghello * (C) Copyright 2017 Angelo Dureghello <angelo@sysam.it> 5*c74dda8bSAngelo Dureghello * 6*c74dda8bSAngelo Dureghello * SPDX-License-Identifier: GPL-2.0+ 7*c74dda8bSAngelo Dureghello */ 8*c74dda8bSAngelo Dureghello 9*c74dda8bSAngelo Dureghello.global sbf_dram_init 10*c74dda8bSAngelo Dureghello.text 11*c74dda8bSAngelo Dureghello 12*c74dda8bSAngelo Dureghellosbf_dram_init: 13*c74dda8bSAngelo Dureghello move.l #0xFC04002D, %a1 14*c74dda8bSAngelo Dureghello move.b #46, (%a1) /* DDR */ 15*c74dda8bSAngelo Dureghello 16*c74dda8bSAngelo Dureghello /* slew settings */ 17*c74dda8bSAngelo Dureghello move.l #0xEC094060, %a1 18*c74dda8bSAngelo Dureghello move.b #0, (%a1) 19*c74dda8bSAngelo Dureghello 20*c74dda8bSAngelo Dureghello /* use vco instead of cpu*2 clock for ddr clock */ 21*c74dda8bSAngelo Dureghello move.l #0xEC09001A, %a1 22*c74dda8bSAngelo Dureghello move.w #0xE01D, (%a1) 23*c74dda8bSAngelo Dureghello 24*c74dda8bSAngelo Dureghello /* DDR settings */ 25*c74dda8bSAngelo Dureghello move.l #0xFC0B8180, %a1 26*c74dda8bSAngelo Dureghello move.l #0x00000000, (%a1) 27*c74dda8bSAngelo Dureghello move.l #0x40000000, (%a1) 28*c74dda8bSAngelo Dureghello 29*c74dda8bSAngelo Dureghello move.l #0xFC0B81AC, %a1 30*c74dda8bSAngelo Dureghello move.l #0x01030203, (%a1) 31*c74dda8bSAngelo Dureghello 32*c74dda8bSAngelo Dureghello move.l #0xFC0B8000, %a1 33*c74dda8bSAngelo Dureghello move.l #0x01010101, (%a1)+ /* 0x00 */ 34*c74dda8bSAngelo Dureghello move.l #0x00000101, (%a1)+ /* 0x04 */ 35*c74dda8bSAngelo Dureghello move.l #0x01010100, (%a1)+ /* 0x08 */ 36*c74dda8bSAngelo Dureghello move.l #0x01010000, (%a1)+ /* 0x0C */ 37*c74dda8bSAngelo Dureghello move.l #0x00010101, (%a1)+ /* 0x10 */ 38*c74dda8bSAngelo Dureghello move.l #0xFC0B8018, %a1 39*c74dda8bSAngelo Dureghello move.l #0x00010100, (%a1)+ /* 0x18 */ 40*c74dda8bSAngelo Dureghello move.l #0x00000001, (%a1)+ /* 0x1C */ 41*c74dda8bSAngelo Dureghello move.l #0x01000001, (%a1)+ /* 0x20 */ 42*c74dda8bSAngelo Dureghello move.l #0x00000100, (%a1)+ /* 0x24 */ 43*c74dda8bSAngelo Dureghello move.l #0x00010001, (%a1)+ /* 0x28 */ 44*c74dda8bSAngelo Dureghello move.l #0x00000200, (%a1)+ /* 0x2C */ 45*c74dda8bSAngelo Dureghello move.l #0x01000002, (%a1)+ /* 0x30 */ 46*c74dda8bSAngelo Dureghello move.l #0x00000000, (%a1)+ /* 0x34 */ 47*c74dda8bSAngelo Dureghello move.l #0x00000100, (%a1)+ /* 0x38 */ 48*c74dda8bSAngelo Dureghello move.l #0x02000100, (%a1)+ /* 0x3C */ 49*c74dda8bSAngelo Dureghello move.l #0x02000407, (%a1)+ /* 0x40 */ 50*c74dda8bSAngelo Dureghello move.l #0x02030007, (%a1)+ /* 0x44 */ 51*c74dda8bSAngelo Dureghello move.l #0x02000100, (%a1)+ /* 0x48 */ 52*c74dda8bSAngelo Dureghello move.l #0x0A030203, (%a1)+ /* 0x4C */ 53*c74dda8bSAngelo Dureghello move.l #0x00020708, (%a1)+ /* 0x50 */ 54*c74dda8bSAngelo Dureghello move.l #0x00050008, (%a1)+ /* 0x54 */ 55*c74dda8bSAngelo Dureghello move.l #0x04030002, (%a1)+ /* 0x58 */ 56*c74dda8bSAngelo Dureghello move.l #0x00000004, (%a1)+ /* 0x5C */ 57*c74dda8bSAngelo Dureghello move.l #0x020A0000, (%a1)+ /* 0x60 */ 58*c74dda8bSAngelo Dureghello move.l #0x0C00000E, (%a1)+ /* 0x64 */ 59*c74dda8bSAngelo Dureghello move.l #0x00002004, (%a1)+ /* 0x68 */ 60*c74dda8bSAngelo Dureghello move.l #0x00000000, (%a1)+ /* 0x6C */ 61*c74dda8bSAngelo Dureghello move.l #0x00100010, (%a1)+ /* 0x70 */ 62*c74dda8bSAngelo Dureghello move.l #0x00100010, (%a1)+ /* 0x74 */ 63*c74dda8bSAngelo Dureghello move.l #0x00000000, (%a1)+ /* 0x78 */ 64*c74dda8bSAngelo Dureghello move.l #0x07990000, (%a1)+ /* 0x7C */ 65*c74dda8bSAngelo Dureghello move.l #0xFC0B80A0, %a1 66*c74dda8bSAngelo Dureghello move.l #0x00000000, (%a1)+ /* 0xA0 */ 67*c74dda8bSAngelo Dureghello move.l #0x00C80064, (%a1)+ /* 0xA4 */ 68*c74dda8bSAngelo Dureghello move.l #0x44520002, (%a1)+ /* 0xA8 */ 69*c74dda8bSAngelo Dureghello move.l #0x00C80023, (%a1)+ /* 0xAC */ 70*c74dda8bSAngelo Dureghello move.l #0xFC0B80B4, %a1 71*c74dda8bSAngelo Dureghello move.l #0x0000C350, (%a1) /* 0xB4 */ 72*c74dda8bSAngelo Dureghello move.l #0xFC0B80E0, %a1 73*c74dda8bSAngelo Dureghello move.l #0x04000000, (%a1)+ /* 0xE0 */ 74*c74dda8bSAngelo Dureghello move.l #0x03000304, (%a1)+ /* 0xE4 */ 75*c74dda8bSAngelo Dureghello move.l #0x40040000, (%a1)+ /* 0xE8 */ 76*c74dda8bSAngelo Dureghello move.l #0xC0004004, (%a1)+ /* 0xEC */ 77*c74dda8bSAngelo Dureghello move.l #0x0642C000, (%a1)+ /* 0xF0 */ 78*c74dda8bSAngelo Dureghello move.l #0x00000642, (%a1)+ /* 0xF4 */ 79*c74dda8bSAngelo Dureghello move.l #0xFC0B8024, %a1 80*c74dda8bSAngelo Dureghello tpf 81*c74dda8bSAngelo Dureghello move.l #0x01000100, (%a1) /* 0x24 */ 82*c74dda8bSAngelo Dureghello 83*c74dda8bSAngelo Dureghello move.l #0x2000, %d1 84*c74dda8bSAngelo Dureghello bsr asm_delay 85*c74dda8bSAngelo Dureghello 86*c74dda8bSAngelo Dureghello rts 87