diff options
Diffstat (limited to 'board/sh7785lcr/lowlevel_init.S')
| -rw-r--r-- | board/sh7785lcr/lowlevel_init.S | 318 |
1 files changed, 318 insertions, 0 deletions
diff --git a/board/sh7785lcr/lowlevel_init.S b/board/sh7785lcr/lowlevel_init.S new file mode 100644 index 0000000..8126296 --- /dev/null +++ b/board/sh7785lcr/lowlevel_init.S @@ -0,0 +1,318 @@ +/* + * 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 + |