| /* |
| * Copyright (C) 2008 Nobuhiro Iwamatsu |
| * Copyright (C) 2008 Renesas Solutions Corp. |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| #include <config.h> |
| #include <version.h> |
| |
| #include <asm/processor.h> |
| #include <asm/macro.h> |
| |
| .global lowlevel_init |
| |
| .text |
| .align 2 |
| |
| lowlevel_init: |
| /* Cache setting */ |
| write32 CCR1_A ,CCR1_D |
| |
| /* ConfigurePortPins */ |
| write16 PECRL3_A, PECRL3_D |
| |
| write16 PCCRL4_A, PCCRL4_D0 |
| |
| write16 PECRL4_A, PECRL4_D0 |
| |
| write16 PEIORL_A, PEIORL_D0 |
| |
| write16 PCIORL_A, PCIORL_D |
| |
| write16 PFCRH2_A, PFCRH2_D |
| |
| write16 PFCRH3_A, PFCRH3_D |
| |
| write16 PFCRH1_A, PFCRH1_D |
| |
| write16 PFIORH_A, PFIORH_D |
| |
| write16 PECRL1_A, PECRL1_D0 |
| |
| write16 PEIORL_A, PEIORL_D1 |
| |
| /* Configure Operating Frequency */ |
| write16 WTCSR_A, WTCSR_D0 |
| |
| write16 WTCSR_A, WTCSR_D1 |
| |
| write16 WTCNT_A, WTCNT_D |
| |
| /* Set clock mode*/ |
| write16 FRQCR_A, FRQCR_D |
| |
| /* Configure Bus And Memory */ |
| init_bsc_cs0: |
| write16 PCCRL4_A, PCCRL4_D1 |
| |
| write16 PECRL1_A, PECRL1_D1 |
| |
| write32 CMNCR_A, CMNCR_D |
| |
| write32 CS0BCR_A, CS0BCR_D |
| |
| write32 CS0WCR_A, CS0WCR_D |
| |
| init_bsc_cs1: |
| write16 PECRL4_A, PECRL4_D1 |
| |
| write32 CS1WCR_A, CS1WCR_D |
| |
| init_sdram: |
| write16 PCCRL2_A, PCCRL2_D |
| |
| write16 PCCRL4_A, PCCRL4_D2 |
| |
| write16 PCCRL1_A, PCCRL1_D |
| |
| write16 PCCRL3_A, PCCRL3_D |
| |
| write32 CS3BCR_A, CS3BCR_D |
| |
| write32 CS3WCR_A, CS3WCR_D |
| |
| write32 SDCR_A, SDCR_D |
| |
| write32 RTCOR_A, RTCOR_D |
| |
| write32 RTCSR_A, RTCSR_D |
| |
| /* wait 200us */ |
| mov.l REPEAT_D, r3 |
| mov #0, r2 |
| repeat0: |
| add #1, r2 |
| cmp/hs r3, r2 |
| bf repeat0 |
| nop |
| |
| mov.l SDRAM_MODE, r1 |
| mov #0, r0 |
| mov.l r0, @r1 |
| |
| nop |
| rts |
| |
| .align 4 |
| |
| CCR1_A: .long CCR1 |
| CCR1_D: .long 0x0000090B |
| PCCRL4_A: .long 0xFFFE3910 |
| PCCRL4_D0: .word 0x0000 |
| .align 2 |
| PECRL4_A: .long 0xFFFE3A10 |
| PECRL4_D0: .word 0x0000 |
| .align 2 |
| PECRL3_A: .long 0xFFFE3A12 |
| PECRL3_D: .word 0x0000 |
| .align 2 |
| PEIORL_A: .long 0xFFFE3A06 |
| PEIORL_D0: .word 0x1C00 |
| PEIORL_D1: .word 0x1C02 |
| PCIORL_A: .long 0xFFFE3906 |
| PCIORL_D: .word 0x4000 |
| .align 2 |
| PFCRH2_A: .long 0xFFFE3A8C |
| PFCRH2_D: .word 0x0000 |
| .align 2 |
| PFCRH3_A: .long 0xFFFE3A8A |
| PFCRH3_D: .word 0x0000 |
| .align 2 |
| PFCRH1_A: .long 0xFFFE3A8E |
| PFCRH1_D: .word 0x0000 |
| .align 2 |
| PFIORH_A: .long 0xFFFE3A84 |
| PFIORH_D: .word 0x0729 |
| .align 2 |
| PECRL1_A: .long 0xFFFE3A16 |
| PECRL1_D0: .word 0x0033 |
| .align 2 |
| |
| |
| WTCSR_A: .long 0xFFFE0000 |
| WTCSR_D0: .word 0xA518 |
| WTCSR_D1: .word 0xA51D |
| WTCNT_A: .long 0xFFFE0002 |
| WTCNT_D: .word 0x5A84 |
| .align 2 |
| FRQCR_A: .long 0xFFFE0010 |
| FRQCR_D: .word 0x0104 |
| .align 2 |
| |
| PCCRL4_D1: .word 0x0010 |
| PECRL1_D1: .word 0x0133 |
| |
| CMNCR_A: .long 0xFFFC0000 |
| CMNCR_D: .long 0x00001810 |
| CS0BCR_A: .long 0xFFFC0004 |
| CS0BCR_D: .long 0x10000400 |
| CS0WCR_A: .long 0xFFFC0028 |
| CS0WCR_D: .long 0x00000B41 |
| PECRL4_D1: .word 0x0100 |
| .align 2 |
| CS1WCR_A: .long 0xFFFC002C |
| CS1WCR_D: .long 0x00000B01 |
| PCCRL4_D2: .word 0x0011 |
| .align 2 |
| PCCRL3_A: .long 0xFFFE3912 |
| PCCRL3_D: .word 0x0011 |
| .align 2 |
| PCCRL2_A: .long 0xFFFE3914 |
| PCCRL2_D: .word 0x1111 |
| .align 2 |
| PCCRL1_A: .long 0xFFFE3916 |
| PCCRL1_D: .word 0x1010 |
| .align 2 |
| PDCRL4_A: .long 0xFFFE3990 |
| PDCRL4_D: .word 0x0011 |
| .align 2 |
| PDCRL3_A: .long 0xFFFE3992 |
| PDCRL3_D: .word 0x00011 |
| .align 2 |
| PDCRL2_A: .long 0xFFFE3994 |
| PDCRL2_D: .word 0x1111 |
| .align 2 |
| PDCRL1_A: .long 0xFFFE3996 |
| PDCRL1_D: .word 0x1000 |
| .align 2 |
| CS3BCR_A: .long 0xFFFC0010 |
| CS3BCR_D: .long 0x00004400 |
| CS3WCR_A: .long 0xFFFC0034 |
| CS3WCR_D: .long 0x00002892 |
| SDCR_A: .long 0xFFFC004C |
| SDCR_D: .long 0x00000809 |
| RTCOR_A: .long 0xFFFC0058 |
| RTCOR_D: .long 0xA55A0041 |
| RTCSR_A: .long 0xFFFC0050 |
| RTCSR_D: .long 0xa55a0010 |
| |
| SDRAM_MODE: .long 0xFFFC5040 |
| REPEAT_D: .long 0x00009C40 |
