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- /*
- * Board-specific sbf ddr/sdram init.
- *
- * (C) Copyright 2017 Angelo Dureghello <angelo@sysam.it>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
- .global sbf_dram_init
- .text
- sbf_dram_init:
- move.l #0xFC04002D, %a1
- move.b #46, (%a1) /* DDR */
- /* slew settings */
- move.l #0xEC094060, %a1
- move.b #0, (%a1)
- /* use vco instead of cpu*2 clock for ddr clock */
- move.l #0xEC09001A, %a1
- move.w #0xE01D, (%a1)
- /* DDR settings */
- move.l #0xFC0B8180, %a1
- move.l #0x00000000, (%a1)
- move.l #0x40000000, (%a1)
- move.l #0xFC0B81AC, %a1
- move.l #0x01030203, (%a1)
- move.l #0xFC0B8000, %a1
- move.l #0x01010101, (%a1)+ /* 0x00 */
- move.l #0x00000101, (%a1)+ /* 0x04 */
- move.l #0x01010100, (%a1)+ /* 0x08 */
- move.l #0x01010000, (%a1)+ /* 0x0C */
- move.l #0x00010101, (%a1)+ /* 0x10 */
- move.l #0xFC0B8018, %a1
- move.l #0x00010100, (%a1)+ /* 0x18 */
- move.l #0x00000001, (%a1)+ /* 0x1C */
- move.l #0x01000001, (%a1)+ /* 0x20 */
- move.l #0x00000100, (%a1)+ /* 0x24 */
- move.l #0x00010001, (%a1)+ /* 0x28 */
- move.l #0x00000200, (%a1)+ /* 0x2C */
- move.l #0x01000002, (%a1)+ /* 0x30 */
- move.l #0x00000000, (%a1)+ /* 0x34 */
- move.l #0x00000100, (%a1)+ /* 0x38 */
- move.l #0x02000100, (%a1)+ /* 0x3C */
- move.l #0x02000407, (%a1)+ /* 0x40 */
- move.l #0x02030007, (%a1)+ /* 0x44 */
- move.l #0x02000100, (%a1)+ /* 0x48 */
- move.l #0x0A030203, (%a1)+ /* 0x4C */
- move.l #0x00020708, (%a1)+ /* 0x50 */
- move.l #0x00050008, (%a1)+ /* 0x54 */
- move.l #0x04030002, (%a1)+ /* 0x58 */
- move.l #0x00000004, (%a1)+ /* 0x5C */
- move.l #0x020A0000, (%a1)+ /* 0x60 */
- move.l #0x0C00000E, (%a1)+ /* 0x64 */
- move.l #0x00002004, (%a1)+ /* 0x68 */
- move.l #0x00000000, (%a1)+ /* 0x6C */
- move.l #0x00100010, (%a1)+ /* 0x70 */
- move.l #0x00100010, (%a1)+ /* 0x74 */
- move.l #0x00000000, (%a1)+ /* 0x78 */
- move.l #0x07990000, (%a1)+ /* 0x7C */
- move.l #0xFC0B80A0, %a1
- move.l #0x00000000, (%a1)+ /* 0xA0 */
- move.l #0x00C80064, (%a1)+ /* 0xA4 */
- move.l #0x44520002, (%a1)+ /* 0xA8 */
- move.l #0x00C80023, (%a1)+ /* 0xAC */
- move.l #0xFC0B80B4, %a1
- move.l #0x0000C350, (%a1) /* 0xB4 */
- move.l #0xFC0B80E0, %a1
- move.l #0x04000000, (%a1)+ /* 0xE0 */
- move.l #0x03000304, (%a1)+ /* 0xE4 */
- move.l #0x40040000, (%a1)+ /* 0xE8 */
- move.l #0xC0004004, (%a1)+ /* 0xEC */
- move.l #0x0642C000, (%a1)+ /* 0xF0 */
- move.l #0x00000642, (%a1)+ /* 0xF4 */
- move.l #0xFC0B8024, %a1
- tpf
- move.l #0x01000100, (%a1) /* 0x24 */
- move.l #0x2000, %d1
- bsr asm_delay
- rts
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