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/*
* Copyright (C) 2008 Renesas Solutions Corp.
* Copyright (C) 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
* Copyright (C) 2007 Kenati Technologies, Inc.
*
* board/sh7763rdp/lowlevel_init.S
*
* 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>
.global lowlevel_init
.text
.align 2
lowlevel_init:
mov.l WDTCSR_A, r1 /* Watchdog Control / Status Register */
mov.l WDTCSR_D, r0
mov.l r0, @r1
mov.l WDTST_A, r1 /* Watchdog Stop Time Register */
mov.l WDTST_D, r0
mov.l r0, @r1
mov.l WDTBST_A, r1 /* 0xFFCC0008 (Watchdog Base Stop Time Register */
mov.l WDTBST_D, r0
mov.l r0, @r1
mov.l CCR_A, r1 /* Address of Cache Control Register */
mov.l CCR_CACHE_ICI_D, r0 /* Instruction Cache Invalidate */
mov.l r0, @r1
mov.l MMUCR_A, r1 /* Address of MMU Control Register */
mov.l MMU_CONTROL_TI_D, r0 /* TI == TLB Invalidate bit */
mov.l r0, @r1
mov.l MSTPCR0_A, r1 /* Address of Power Control Register 0 */
mov.l MSTPCR0_D, r0
mov.l r0, @r1
mov.l MSTPCR1_A, r1 /*i Address of Power Control Register 1 */
mov.l MSTPCR1_D, r0
mov.l r0, @r1
mov.l RAMCR_A,r1
mov.l RAMCR_D,r0
mov.l r0, @r1
mov.l MMSELR_A,r1
mov.l MMSELR_D,r0
synco
mov.l r0, @r1
mov.l @r1,r2 /* execute two reads after setting MMSELR*/
mov.l @r1,r2
synco
/* issue memory read */
mov.l DDRSD_START_A,r1 /* memory address to read*/
mov.l @r1,r0
synco
mov.l MIM8_A,r1
mov.l MIM8_D,r0
mov.l r0,@r1
mov.l MIMC_A,r1
mov.l MIMC_D1,r0
mov.l r0,@r1
mov.l STRC_A,r1
mov.l STRC_D,r0
mov.l r0,@r1
mov.l SDR4_A,r1
mov.l SDR4_D,r0
mov.l r0,@r1
mov.l MIMC_A,r1
mov.l MIMC_D2,r0
mov.l r0,@r1
nop
nop
nop
mov.l SCR4_A,r1
mov.l SCR4_D3,r0
mov.l r0,@r1
mov.l SCR4_A,r1
mov.l SCR4_D2,r0
mov.l r0,@r1
mov.l SDMR02000_A,r1
mov.l SDMR02000_D,r0
mov.l r0,@r1
mov.l SDMR00B08_A,r1
mov.l SDMR00B08_D,r0
mov.l r0,@r1
mov.l SCR4_A,r1
mov.l SCR4_D2,r0
mov.l r0,@r1
mov.l SCR4_A,r1
mov.l SCR4_D4,r0
mov.l r0,@r1
nop
nop
nop
nop
mov.l SCR4_A,r1
mov.l SCR4_D4,r0
mov.l r0,@r1
nop
nop
nop
nop
mov.l SDMR00308_A,r1
mov.l SDMR00308_D,r0
mov.l r0,@r1
mov.l MIMC_A,r1
mov.l MIMC_D3,r0
mov.l r0,@r1
mov.l SCR4_A,r1
mov.l SCR4_D1,r0
mov.l DELAY60_D,r3
delay_loop_60:
mov.l r0,@r1
dt r3
bf delay_loop_60
nop
mov.l CCR_A, r1 /* Address of Cache Control Register */
mov.l CCR_CACHE_D_2, r0
mov.l r0, @r1
bsc_init:
mov.l BCR_A, r1
mov.l BCR_D, r0
mov.l r0, @r1
mov.l CS0BCR_A, r1
mov.l CS0BCR_D, r0
mov.l r0, @r1
mov.l CS1BCR_A,r1
mov.l CS1BCR_D,r0
mov.l r0,@r1
mov.l CS2BCR_A, r1
mov.l CS2BCR_D, r0
mov.l r0, @r1
mov.l CS4BCR_A, r1
mov.l CS4BCR_D, r0
mov.l r0, @r1
mov.l CS5BCR_A, r1
mov.l CS5BCR_D, r0
mov.l r0, @r1
mov.l CS6BCR_A, r1
mov.l CS6BCR_D, r0
mov.l r0, @r1
mov.l CS0WCR_A, r1
mov.l CS0WCR_D, r0
mov.l r0, @r1
mov.l CS1WCR_A, r1
mov.l CS1WCR_D, r0
mov.l r0, @r1
mov.l CS2WCR_A, r1
mov.l CS2WCR_D, r0
mov.l r0, @r1
mov.l CS4WCR_A, r1
mov.l CS4WCR_D, r0
mov.l r0, @r1
mov.l CS5WCR_A, r1
mov.l CS5WCR_D, r0
mov.l r0, @r1
mov.l CS6WCR_A, r1
mov.l CS6WCR_D, r0
mov.l r0, @r1
mov.l CS5PCR_A, r1
mov.l CS5PCR_D, r0
mov.l r0, @r1
mov.l CS6PCR_A, r1
mov.l CS6PCR_D, r0
mov.l r0, @r1
mov.l DELAY200_D,r3
delay_loop_200:
dt r3
bf delay_loop_200
nop
mov.l PSEL0_A,r1
mov.l PSEL0_D,r0
mov.w r0,@r1
mov.l PSEL1_A,r1
mov.l PSEL1_D,r0
mov.w r0,@r1
mov.l ICR0_A,r1
mov.l ICR0_D,r0
mov.l r0,@r1
stc sr, r0 /* BL bit off(init=ON) */
mov.l SR_MASK_D, r1
and r1, r0
ldc r0, sr
rts
nop
.align 2
DELAY60_D: .long 60
DELAY200_D: .long 17800
CCR_A: .long 0xFF00001C
MMUCR_A: .long 0xFF000010
RAMCR_A: .long 0xFF000074
/* Low power mode control */
MSTPCR0_A: .long 0xFFC80030
MSTPCR1_A: .long 0xFFC80038
/* RWBT */
WDTST_A: .long 0xFFCC0000
WDTCSR_A: .long 0xFFCC0004
WDTBST_A: .long 0xFFCC0008
/* BSC */
MMSELR_A: .long 0xFE600020
BCR_A: .long 0xFF801000
CS0BCR_A: .long 0xFF802000
CS1BCR_A: .long 0xFF802010
CS2BCR_A: .long 0xFF802020
CS4BCR_A: .long 0xFF802040
CS5BCR_A: .long 0xFF802050
CS6BCR_A: .long 0xFF802060
CS0WCR_A: .long 0xFF802008
CS1WCR_A: .long 0xFF802018
CS2WCR_A: .long 0xFF802028
CS4WCR_A: .long 0xFF802048
CS5WCR_A: .long 0xFF802058
CS6WCR_A: .long 0xFF802068
CS5PCR_A: .long 0xFF802070
CS6PCR_A: .long 0xFF802080
DDRSD_START_A: .long 0xAC000000
/* INTC */
ICR0_A: .long 0xFFD00000
/* DDR I/F */
MIM8_A: .long 0xFE800008
MIMC_A: .long 0xFE80000C
SCR4_A: .long 0xFE800014
STRC_A: .long 0xFE80001C
SDR4_A: .long 0xFE800034
SDMR00308_A: .long 0xFE900308
SDMR00B08_A: .long 0xFE900B08
SDMR02000_A: .long 0xFE902000
/* GPIO */
PSEL0_A: .long 0xFFEF0070
PSEL1_A: .long 0xFFEF0072
CCR_CACHE_ICI_D:.long 0x00000800
CCR_CACHE_D_2: .long 0x00000103
MMU_CONTROL_TI_D:.long 0x00000004
RAMCR_D: .long 0x00000200
MSTPCR0_D: .long 0x00000000
MSTPCR1_D: .long 0x00000000
MMSELR_D: .long 0xa5a50000
BCR_D: .long 0x00000000
CS0BCR_D: .long 0x77777770
CS1BCR_D: .long 0x77777670
CS2BCR_D: .long 0x77777670
CS4BCR_D: .long 0x77777670
CS5BCR_D: .long 0x77777670
CS6BCR_D: .long 0x77777670
CS0WCR_D: .long 0x7777770F
CS1WCR_D: .long 0x22000002
CS2WCR_D: .long 0x7777770F
CS4WCR_D: .long 0x7777770F
CS5WCR_D: .long 0x7777770F
CS6WCR_D: .long 0x7777770F
CS5PCR_D: .long 0x77000000
CS6PCR_D: .long 0x77000000
ICR0_D: .long 0x00E00000
MIM8_D: .long 0x00000000
MIMC_D1: .long 0x01d10008
MIMC_D2: .long 0x01d10009
MIMC_D3: .long 0x01d10209
SCR4_D1: .long 0x00000001
SCR4_D2: .long 0x00000002
SCR4_D3: .long 0x00000003
SCR4_D4: .long 0x00000004
STRC_D: .long 0x000f3980
SDR4_D: .long 0x00000300
SDMR00308_D: .long 0x00000000
SDMR00B08_D: .long 0x00000000
SDMR02000_D: .long 0x00000000
PSEL0_D: .long 0x00000001
PSEL1_D: .long 0x00000244
SR_MASK_D: .long 0xEFFFFF0F
WDTST_D: .long 0x5A000FFF
WDTCSR_D: .long 0xA5000000
WDTBST_D: .long 0x55000000
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