sh: Add support ESPT-GIGA borad

ESPT-Giga is SH7763-based reference board.
Board support is relatively sparse, presently supporting serial,
gigabit ethernet, USB host, and MTD.

More information (in Japanese) available at:
http://www.cente.jp/product/cente_hard/ESPT-Giga.html

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

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