diff options
Diffstat (limited to 'board/espt/lowlevel_init.S')
| -rw-r--r-- | board/espt/lowlevel_init.S | 334 |
1 files changed, 334 insertions, 0 deletions
diff --git a/board/espt/lowlevel_init.S b/board/espt/lowlevel_init.S new file mode 100644 index 0000000..7d5d72e --- /dev/null +++ b/board/espt/lowlevel_init.S @@ -0,0 +1,334 @@ +/* + * Copyright (C) 2009 Renesas Solutions Corp. + * Copyright (C) 2009 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> + * + * board/espt/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> +#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 + + mov.l MMSEL_A, r0 + synco + mov.l @r0, r1 + synco + + mov.l CS0_A, r0 + synco + mov.l @r0, r1 + synco + + /* 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: .long 0x00001400 +PBDR_D: .long 0x00000000 +PBCR_D: .long 0x0000555A +PCDR_D: .long 0x00000000 +PCCR_D: .long 0x00005555 +PDDR_D: .long 0x00000000 +PDCR_D: .long 0x00000155 +PECR_D: .long 0x00000000 +PFCR_D: .long 0x00000000 +PGCR_D: .long 0x00000000 +PHCR_D: .long 0x00000000 +PICR_D: .long 0x00000800 +PJDR_D: .long 0x00000006 +PJCR_D: .long 0x00005A57 +PKDR_D: .long 0x00000000 +PKCR_D: .long 0x0000FFF9 +PLCR_D: .long 0x0000C330 +PMCR_D: .long 0x0000FFFF +PNCR_D: .long 0x00000242 +POCR_D: .long 0x00000000 + +/* Pin Select */ +PSEL0_A: .long 0xFFEF0070 +PSEL1_A: .long 0xFFEF0072 +PSEL2_A: .long 0xFFEF0074 +PSEL3_A: .long 0xFFEF0076 +PSEL4_A: .long 0xFFEF0078 +PSEL0_D: .long 0x0001 +PSEL1_D: .long 0x2400 +PSEL2_D: .long 0x0000 +PSEL3_D: .long 0x2421 +PSEL4_D: .long 0x0000 + +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 |