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/*
* Copyright (C) 2008 Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#include <version.h>
#include <asm/processor.h>
.macro write32, addr, data
mov.l \addr ,r1
mov.l \data ,r0
mov.l r0, @r1
.endm
.macro write16, addr, data
mov.l \addr ,r1
mov.l \data ,r0
mov.w r0, @r1
.endm
.macro write8, addr, data
mov.l \addr ,r1
mov.l \data ,r0
mov.b r0, @r1
.endm
.macro wait_timer, time
mov.l \time ,r3
1:
nop
tst r3, r3
bf/s 1b
dt r3
.endm
#include <asm/processor.h>
.global lowlevel_init
.text
.align 2
lowlevel_init:
wait_timer WAIT_200US
wait_timer WAIT_200US
/*------- LBSC -------*/
write32 MMSELR_A, MMSELR_D
/*------- DBSC2 -------*/
write32 DBSC2_DBCONF_A, DBSC2_DBCONF_D
write32 DBSC2_DBTR0_A, DBSC2_DBTR0_D
write32 DBSC2_DBTR1_A, DBSC2_DBTR1_D
write32 DBSC2_DBTR2_A, DBSC2_DBTR2_D
write32 DBSC2_DBFREQ_A, DBSC2_DBFREQ_D1
write32 DBSC2_DBFREQ_A, DBSC2_DBFREQ_D2
wait_timer WAIT_200US
write32 DBSC2_DBDICODTOCD_A, DBSC2_DBDICODTOCD_D
write32 DBSC2_DBCMDCNT_A, DBSC2_DBCMDCNT_D_CKE_H
wait_timer WAIT_200US
write32 DBSC2_DBCMDCNT_A, DBSC2_DBCMDCNT_D_PALL
write32 DBSC2_DBMRCNT_A, DBSC2_DBMRCNT_D_EMRS2
write32 DBSC2_DBMRCNT_A, DBSC2_DBMRCNT_D_EMRS3
write32 DBSC2_DBMRCNT_A, DBSC2_DBMRCNT_D_EMRS1_1
write32 DBSC2_DBMRCNT_A, DBSC2_DBMRCNT_D_MRS_1
write32 DBSC2_DBCMDCNT_A, DBSC2_DBCMDCNT_D_PALL
write32 DBSC2_DBCMDCNT_A, DBSC2_DBCMDCNT_D_REF
write32 DBSC2_DBCMDCNT_A, DBSC2_DBCMDCNT_D_REF
write32 DBSC2_DBMRCNT_A, DBSC2_DBMRCNT_D_MRS_2
wait_timer WAIT_200US
write32 DBSC2_DBMRCNT_A, DBSC2_DBMRCNT_D_EMRS1_2
write32 DBSC2_DBMRCNT_A, DBSC2_DBMRCNT_D_EMRS1_1
write32 DBSC2_DBEN_A, DBSC2_DBEN_D
write32 DBSC2_DBRFCNT1_A, DBSC2_DBRFCNT1_D
write32 DBSC2_DBRFCNT2_A, DBSC2_DBRFCNT2_D
write32 DBSC2_DBRFCNT0_A, DBSC2_DBRFCNT0_D
wait_timer WAIT_200US
/*------- GPIO -------*/
write16 PACR_A, PACR_D
write16 PBCR_A, PBCR_D
write16 PCCR_A, PCCR_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 PJCR_A, PJCR_D
write16 PKCR_A, PKCR_D
write16 PLCR_A, PLCR_D
write16 PMCR_A, PMCR_D
write16 PNCR_A, PNCR_D
write16 PPCR_A, PPCR_D
write16 PQCR_A, PQCR_D
write16 PRCR_A, PRCR_D
write8 PEPUPR_A, PEPUPR_D
write8 PHPUPR_A, PHPUPR_D
write8 PJPUPR_A, PJPUPR_D
write8 PKPUPR_A, PKPUPR_D
write8 PLPUPR_A, PLPUPR_D
write8 PMPUPR_A, PMPUPR_D
write8 PNPUPR_A, PNPUPR_D
write16 PPUPR1_A, PPUPR1_D
write16 PPUPR2_A, PPUPR2_D
write16 P1MSELR_A, P1MSELR_D
write16 P2MSELR_A, P2MSELR_D
/*------- LBSC -------*/
write32 BCR_A, BCR_D
write32 CS0BCR_A, CS0BCR_D
write32 CS0WCR_A, CS0WCR_D
write32 CS1BCR_A, CS1BCR_D
write32 CS1WCR_A, CS1WCR_D
write32 CS4BCR_A, CS4BCR_D
write32 CS4WCR_A, CS4WCR_D
mov.l PASCR_A, r0
mov.l @r0, r2
mov.l PASCR_32BIT_MODE, r1
tst r1, r2
bt lbsc_29bit
write32 CS2BCR_A, CS_USB_BCR_D
write32 CS2WCR_A, CS_USB_WCR_D
write32 CS3BCR_A, CS_SD_BCR_D
write32 CS3WCR_A, CS_SD_WCR_D
write32 CS5BCR_A, CS_I2C_BCR_D
write32 CS5WCR_A, CS_I2C_WCR_D
write32 CS6BCR_A, CS0BCR_D
write32 CS6WCR_A, CS0WCR_D
bra lbsc_end
nop
lbsc_29bit:
write32 CS5BCR_A, CS_USB_BCR_D
write32 CS5WCR_A, CS_USB_WCR_D
write32 CS6BCR_A, CS_SD_BCR_D
write32 CS6WCR_A, CS_SD_WCR_D
lbsc_end:
write32 CCR_A, CCR_D
rts
nop
.align 4
/*------- LBSC -------*/
MMSELR_A: .long 0xfc400020
MMSELR_D: .long 0xa5a50002
/*------- DBSC2 -------*/
#define DBSC2_BASE 0xfe800000
DBSC2_DBSTATE_A: .long DBSC2_BASE + 0x0c
DBSC2_DBEN_A: .long DBSC2_BASE + 0x10
DBSC2_DBCMDCNT_A: .long DBSC2_BASE + 0x14
DBSC2_DBCONF_A: .long DBSC2_BASE + 0x20
DBSC2_DBTR0_A: .long DBSC2_BASE + 0x30
DBSC2_DBTR1_A: .long DBSC2_BASE + 0x34
DBSC2_DBTR2_A: .long DBSC2_BASE + 0x38
DBSC2_DBRFCNT0_A: .long DBSC2_BASE + 0x40
DBSC2_DBRFCNT1_A: .long DBSC2_BASE + 0x44
DBSC2_DBRFCNT2_A: .long DBSC2_BASE + 0x48
DBSC2_DBRFSTS_A: .long DBSC2_BASE + 0x4c
DBSC2_DBFREQ_A: .long DBSC2_BASE + 0x50
DBSC2_DBDICODTOCD_A: .long DBSC2_BASE + 0x54
DBSC2_DBMRCNT_A: .long DBSC2_BASE + 0x60
DDR_DUMMY_ACCESS_A: .long 0x40000000
DBSC2_DBCONF_D: .long 0x00630002
DBSC2_DBTR0_D: .long 0x050b1f04
DBSC2_DBTR1_D: .long 0x00040204
DBSC2_DBTR2_D: .long 0x02100308
DBSC2_DBFREQ_D1: .long 0x00000000
DBSC2_DBFREQ_D2: .long 0x00000100
DBSC2_DBDICODTOCD_D: .long 0x000f0907
DBSC2_DBCMDCNT_D_CKE_H: .long 0x00000003
DBSC2_DBCMDCNT_D_PALL: .long 0x00000002
DBSC2_DBCMDCNT_D_REF: .long 0x00000004
DBSC2_DBMRCNT_D_EMRS2: .long 0x00020000
DBSC2_DBMRCNT_D_EMRS3: .long 0x00030000
DBSC2_DBMRCNT_D_EMRS1_1: .long 0x00010006
DBSC2_DBMRCNT_D_EMRS1_2: .long 0x00010386
DBSC2_DBMRCNT_D_MRS_1: .long 0x00000952
DBSC2_DBMRCNT_D_MRS_2: .long 0x00000852
DBSC2_DBEN_D: .long 0x00000001
DBSC2_DBPDCNT0_D3: .long 0x00000080
DBSC2_DBRFCNT1_D: .long 0x00000926
DBSC2_DBRFCNT2_D: .long 0x00fe00fe
DBSC2_DBRFCNT0_D: .long 0x00010000
WAIT_200US: .long 33333
/*------- GPIO -------*/
#define GPIO_BASE 0xffe70000
PACR_A: .long GPIO_BASE + 0x00
PBCR_A: .long GPIO_BASE + 0x02
PCCR_A: .long GPIO_BASE + 0x04
PDCR_A: .long GPIO_BASE + 0x06
PECR_A: .long GPIO_BASE + 0x08
PFCR_A: .long GPIO_BASE + 0x0a
PGCR_A: .long GPIO_BASE + 0x0c
PHCR_A: .long GPIO_BASE + 0x0e
PJCR_A: .long GPIO_BASE + 0x10
PKCR_A: .long GPIO_BASE + 0x12
PLCR_A: .long GPIO_BASE + 0x14
PMCR_A: .long GPIO_BASE + 0x16
PNCR_A: .long GPIO_BASE + 0x18
PPCR_A: .long GPIO_BASE + 0x1a
PQCR_A: .long GPIO_BASE + 0x1c
PRCR_A: .long GPIO_BASE + 0x1e
PEPUPR_A: .long GPIO_BASE + 0x48
PHPUPR_A: .long GPIO_BASE + 0x4e
PJPUPR_A: .long GPIO_BASE + 0x50
PKPUPR_A: .long GPIO_BASE + 0x52
PLPUPR_A: .long GPIO_BASE + 0x54
PMPUPR_A: .long GPIO_BASE + 0x56
PNPUPR_A: .long GPIO_BASE + 0x58
PPUPR1_A: .long GPIO_BASE + 0x60
PPUPR2_A: .long GPIO_BASE + 0x62
P1MSELR_A: .long GPIO_BASE + 0x80
P2MSELR_A: .long GPIO_BASE + 0x82
PACR_D: .long 0x0000
PBCR_D: .long 0x0000
PCCR_D: .long 0x0000
PDCR_D: .long 0x0000
PECR_D: .long 0x0000
PFCR_D: .long 0x0000
PGCR_D: .long 0x0000
PHCR_D: .long 0x00c0
PJCR_D: .long 0xc3fc
PKCR_D: .long 0x03ff
PLCR_D: .long 0x0000
PMCR_D: .long 0xffff
PNCR_D: .long 0xf0c3
PPCR_D: .long 0x0000
PQCR_D: .long 0x0000
PRCR_D: .long 0x0000
PEPUPR_D: .long 0xff
PHPUPR_D: .long 0x00
PJPUPR_D: .long 0x00
PKPUPR_D: .long 0x00
PLPUPR_D: .long 0x00
PMPUPR_D: .long 0xfc
PNPUPR_D: .long 0x00
PPUPR1_D: .long 0xffbf
PPUPR2_D: .long 0xff00
P1MSELR_D: .long 0x3780
P2MSELR_D: .long 0x0000
/*------- LBSC -------*/
PASCR_A: .long 0xff000070
PASCR_32BIT_MODE: .long 0x80000000 /* check booting mode */
BCR_A: .long BCR
CS0BCR_A: .long CS0BCR
CS0WCR_A: .long CS0WCR
CS1BCR_A: .long CS1BCR
CS1WCR_A: .long CS1WCR
CS2BCR_A: .long CS2BCR
CS2WCR_A: .long CS2WCR
CS3BCR_A: .long CS3BCR
CS3WCR_A: .long CS3WCR
CS4BCR_A: .long CS4BCR
CS4WCR_A: .long CS4WCR
CS5BCR_A: .long CS5BCR
CS5WCR_A: .long CS5WCR
CS6BCR_A: .long CS6BCR
CS6WCR_A: .long CS6WCR
BCR_D: .long 0x80000003
CS0BCR_D: .long 0x22222340
CS0WCR_D: .long 0x00111118
CS1BCR_D: .long 0x11111100
CS1WCR_D: .long 0x33333303
CS4BCR_D: .long 0x11111300
CS4WCR_D: .long 0x00101012
/* USB setting : 32bit mode = CS2, 29bit mode = CS5 */
CS_USB_BCR_D: .long 0x11111200
CS_USB_WCR_D: .long 0x00020004
/* SD setting : 32bit mode = CS3, 29bit mode = CS6 */
CS_SD_BCR_D: .long 0x00000300
CS_SD_WCR_D: .long 0x00030108
/* I2C setting : 32bit mode = CS5, 29bit mode = CS1(already setting) */
CS_I2C_BCR_D: .long 0x11111100
CS_I2C_WCR_D: .long 0x00000003
CCR_A: .long 0xff00001c
CCR_D: .long 0x0000090b
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