/*
|
* Copyright (C) 2009 Renesas Solutions Corp.
|
* Copyright (C) 2009 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
|
*
|
* board/espt/lowlevel_init.S
|
*
|
* SPDX-License-Identifier: GPL-2.0+
|
*/
|
|
#include <config.h>
|
#include <asm/processor.h>
|
#include <asm/macro.h>
|
|
.global lowlevel_init
|
|
.text
|
.align 2
|
|
lowlevel_init:
|
|
write32 WDTCSR_A, WDTCSR_D
|
|
write32 WDTST_A, WDTST_D
|
|
write32 WDTBST_A, WDTBST_D
|
|
write32 CCR_A, CCR_CACHE_ICI_D
|
|
write32 MMUCR_A, MMU_CONTROL_TI_D
|
|
write32 MSTPCR0_A, MSTPCR0_D
|
|
write32 MSTPCR1_A, MSTPCR1_D
|
|
write32 RAMCR_A, RAMCR_D
|
|
/*
|
* Setting infomation from
|
* original ESPT-GIGA bootloader register
|
*/
|
write32 MMSEL_A, MMSEL_D
|
|
/* dummy */
|
mov.l @r1, r2
|
mov.l @r1, r2
|
synco
|
|
write32 BCR_A, BCR_D
|
|
write32 CS0BCR_A, CS0BCR_D
|
|
write32 CS0WCR_A, CS0WCR_D
|
|
/*
|
* DDR-SDRAM setting
|
*/
|
|
/* set DDR-SDRAM dummy read */
|
write32 MMSEL_A, MMSEL_D
|
|
write32 MMSEL_A, CS0_A
|
|
/* set DDR-SDRAM bus/endian etc */
|
write32 MIM_U_A, MIM_U_D
|
|
write32 MIM_L_A, MIM_L_D0
|
|
write32 SDR_L_A, SDR_L_A_D0
|
|
write32 STR_L_A, STR_L_A_D0
|
|
/* DDR-SDRAM access control */
|
write32 MIM_L_A, MIM_L_D1
|
|
write32 SCR_L_A, SCR_L_A_D0
|
|
write32 SCR_L_A, SCR_L_A_D1
|
|
write32 EMRS_A, EMRS_D
|
|
write32 MRS1_A, MRS1_D
|
|
write32 MIM_U_A, MIM_U_D
|
|
write32 MIM_L_A, MIM_L_A_D2
|
|
write32 SCR_L_A, SCR_L_A_D2
|
|
write32 SCR_L_A, SCR_L_A_D2
|
|
write32 MRS2_A, MRS2_D
|
|
/* wait 200us */
|
wait_timer REPEAT_R3
|
|
/* GPIO setting */
|
write16 PSEL0_A, PSEL0_D
|
|
write16 PSEL1_A, PSEL1_D
|
|
write16 PSEL2_A, PSEL2_D
|
|
write16 PSEL3_A, PSEL3_D
|
|
write16 PSEL4_A, PSEL4_D
|
|
write8 PADR_A, PADR_D
|
|
write16 PACR_A, PACR_D
|
|
write8 PBDR_A, PBDR_D
|
|
write16 PBCR_A, PBCR_D
|
|
write8 PCDR_A, PCDR_D
|
|
write16 PCCR_A, PCCR_D
|
|
write8 PDDR_A, PDDR_D
|
|
write16 PDCR_A, PDCR_D
|
|
write16 PECR_A, PECR_D
|
|
write16 PFCR_A, PFCR_D
|
|
write16 PGCR_A, PGCR_D
|
|
write16 PHCR_A, PHCR_D
|
|
write16 PICR_A, PICR_D
|
|
write8 PJDR_A, PJDR_D
|
|
write16 PJCR_A, PJCR_D
|
|
/* wait 50us */
|
wait_timer REPEAT_R3
|
|
write8 PKDR_A, PKDR_D
|
|
write16 PKCR_A, PKCR_D
|
|
write16 PLCR_A, PLCR_D
|
|
write16 PMCR_A, PMCR_D
|
|
write16 PNCR_A, PNCR_D
|
|
write16 POCR_A, POCR_D
|
|
|
/* ICR0 ,ICR1 */
|
write32 ICR0_A, ICR0_D
|
|
write32 ICR1_A, ICR1_D
|
|
/* USB Host */
|
write32 USB_USBHSC_A, USB_USBHSC_D
|
|
write32 CCR_A, CCR_CACHE_D_2
|
|
rts
|
nop
|
|
.align 2
|
|
/* GPIO Crontrol Register */
|
PACR_A: .long 0xFFEF0000
|
PBCR_A: .long 0xFFEF0002
|
PCCR_A: .long 0xFFEF0004
|
PDCR_A: .long 0xFFEF0006
|
PECR_A: .long 0xFFEF0008
|
PFCR_A: .long 0xFFEF000A
|
PGCR_A: .long 0xFFEF000C
|
PHCR_A: .long 0xFFEF000E
|
PICR_A: .long 0xFFEF0010
|
PJCR_A: .long 0xFFEF0012
|
PKCR_A: .long 0xFFEF0014
|
PLCR_A: .long 0xFFEF0016
|
PMCR_A: .long 0xFFEF0018
|
PNCR_A: .long 0xFFEF001A
|
POCR_A: .long 0xFFEF001C
|
|
/* GPIO Data Register */
|
PADR_A: .long 0xFFEF0020
|
PBDR_A: .long 0xFFEF0022
|
PCDR_A: .long 0xFFEF0024
|
PDDR_A: .long 0xFFEF0026
|
PJDR_A: .long 0xFFEF0032
|
PKDR_A: .long 0xFFEF0034
|
|
/* GPIO Set data */
|
PADR_D: .long 0x00000000
|
PACR_D: .word 0x1400
|
.align 2
|
PBDR_D: .long 0x00000000
|
PBCR_D: .word 0x555A
|
.align 2
|
PCDR_D: .long 0x00000000
|
PCCR_D: .word 0x5555
|
.align 2
|
PDDR_D: .long 0x00000000
|
PDCR_D: .word 0x0155
|
PECR_D: .word 0x0000
|
PFCR_D: .word 0x0000
|
PGCR_D: .word 0x0000
|
PHCR_D: .word 0x0000
|
PICR_D: .word 0x0800
|
PJDR_D: .long 0x00000006
|
PJCR_D: .word 0x5A57
|
.align 2
|
PKDR_D: .long 0x00000000
|
PKCR_D: .word 0xFFF9
|
.align 2
|
PLCR_D: .word 0xC330
|
PMCR_D: .word 0xFFFF
|
PNCR_D: .word 0x0242
|
POCR_D: .word 0x0000
|
|
/* Pin Select */
|
PSEL0_A: .long 0xFFEF0070
|
PSEL1_A: .long 0xFFEF0072
|
PSEL2_A: .long 0xFFEF0074
|
PSEL3_A: .long 0xFFEF0076
|
PSEL4_A: .long 0xFFEF0078
|
PSEL0_D: .word 0x0001
|
PSEL1_D: .word 0x2400
|
PSEL2_D: .word 0x0000
|
PSEL3_D: .word 0x2421
|
PSEL4_D: .word 0x0000
|
.align 2
|
|
MMSEL_A: .long 0xFE600020
|
BCR_A: .long 0xFF801000
|
CS0BCR_A: .long 0xFF802000
|
CS0WCR_A: .long 0xFF802008
|
ICR0_A: .long 0xFFD00000
|
ICR1_A: .long 0xFFD0001C
|
|
MMSEL_D: .long 0xA5A50000
|
BCR_D: .long 0x05000000
|
CS0BCR_D: .long 0x232306F0
|
CS0WCR_D: .long 0x00011104
|
ICR0_D: .long 0x80C00000
|
ICR1_D: .long 0x00020000
|
|
/* RWBT Address */
|
WDTST_A: .long 0xFFCC0000
|
WDTCSR_A: .long 0xFFCC0004
|
WDTBST_A: .long 0xFFCC0008
|
/* RWBT Data */
|
WDTST_D: .long 0x5A000FFF
|
WDTCSR_D: .long 0xA5000000
|
WDTBST_D: .long 0x55000000
|
|
/* Cache Address */
|
CCR_A: .long 0xFF00001C
|
MMUCR_A: .long 0xFF000010
|
RAMCR_A: .long 0xFF000074
|
|
/* Cache Data */
|
CCR_CACHE_ICI_D:.long 0x00000800
|
CCR_CACHE_D_2: .long 0x00000103
|
MMU_CONTROL_TI_D:.long 0x00000004
|
RAMCR_D: .long 0x00000200
|
|
/* Low power mode control Address */
|
MSTPCR0_A: .long 0xFFC80030
|
MSTPCR1_A: .long 0xFFC80038
|
/* Low power mode control Data */
|
MSTPCR0_D: .long 0x00000000
|
MSTPCR1_D: .long 0x00000000
|
|
REPEAT0_R3: .long 0x00002000
|
REPEAT_R3: .long 0x00000200
|
CS0_A: .long 0xA8000000
|
|
MIM_U_A: .long 0xFE800008
|
MIM_L_A: .long 0xFE80000C
|
SCR_U_A: .long 0xFE800010
|
SCR_L_A: .long 0xFE800014
|
STR_U_A: .long 0xFE800018
|
STR_L_A: .long 0xFE80001C
|
SDR_U_A: .long 0xFE800030
|
SDR_L_A: .long 0xFE800034
|
EMRS_A: .long 0xFE902000
|
MRS1_A: .long 0xFE900B08
|
MRS2_A: .long 0xFE900308
|
|
MIM_U_D: .long 0x00000000
|
MIM_L_D0: .long 0x04100008
|
MIM_L_D1: .long 0x02EE0009
|
MIM_L_D2: .long 0x02EE0209
|
|
SDR_L_A_D0: .long 0x00000300
|
STR_L_A_D0: .long 0x00010040
|
MIM_L_A_D1: .long 0x04100009
|
SCR_L_A_D0: .long 0x00000003
|
SCR_L_A_D1: .long 0x00000002
|
MIM_L_A_D2: .long 0x04100209
|
SCR_L_A_D2: .long 0x00000004
|
|
SCR_L_NORMAL: .long 0x00000000
|
SCR_L_NOP: .long 0x00000001
|
SCR_L_PALL: .long 0x00000002
|
SCR_L_CKE_EN: .long 0x00000003
|
SCR_L_CBR: .long 0x00000004
|
|
STR_L_D: .long 0x000F3980
|
SDR_L_D: .long 0x00000400
|
EMRS_D: .long 0x00000000
|
MRS1_D: .long 0x00000000
|
MRS2_D: .long 0x00000000
|
|
/* USB */
|
USB_USBHSC_A: .long 0xFFEC80F0
|
USB_USBHSC_D: .long 0x00000000
|
