--- /dev/null
+/*
+ * 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
projects / oweals / u-boot.git / blobdiff