add neo_gta02.h lowlevel_init.S and kboot-stage1.lds

qiboot/src/kboot.lds

@@ -0,0 +1,53 @@
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+/*OUTPUT_FORMAT("elf32-arm", "elf32-arm", "elf32-arm")*/
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0x00000000;
+
+	. = ALIGN(4);
+	.text      :
+	{
+	  led_S.o	(.text)
+	  led_C.o (.text)
+	  *(.text)
+	}
+
+	. = ALIGN(4);
+	.rodata : { *(.rodata) }
+
+	. = ALIGN(4);
+	.data : { *(.data) }
+
+	. = ALIGN(4);
+	.got : { *(.got) }
+
+	. = ALIGN(4);
+	__bss_start = .;
+	.bss (NOLOAD) : { *(.bss) }
+	_end = .;
+}

qiboot/src/lowlevel_init.S

@@ -0,0 +1,209 @@
+/*
+ * Memory Setup stuff - taken from blob memsetup.S
+ *
+ * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) and
+ *                     Jan-Derk Bakker (J.D.Bakker@its.tudelft.nl)
+ *
+ * Modified for the FIC Neo1973 GTA01 by Harald Welte <laforge@openmoko.org>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 <neo_gta02.h>
+/* some parameters for the board */
+
+/*
+ *
+ * Taken from linux/arch/arm/boot/compressed/head-s3c2410.S
+ *
+ * Copyright (C) 2002 Samsung Electronics SW.LEE  <hitchcar@sec.samsung.com>
+ *
+ */
+
+#define BWSCON	0x48000000
+
+/* BWSCON */
+#define DW8		 	(0x0)
+#define DW16		 	(0x1)
+#define DW32		 	(0x2)
+#define WAIT		 	(0x1<<2)
+#define UBLB		 	(0x1<<3)
+
+#define B1_BWSCON	  	(DW16 + WAIT + UBLB)
+#define B2_BWSCON	  	(DW16)
+#define B3_BWSCON	  	(DW16 + WAIT + UBLB)
+#define B4_BWSCON	  	(DW16)
+#define B5_BWSCON	  	(DW16)
+#define B6_BWSCON	  	(DW32)
+#define B7_BWSCON	  	(DW32)
+
+/* BANK0CON */
+#define B0_Tacs		 	0x0	/*  0clk */
+#define B0_Tcos		 	0x0	/*  0clk */
+#define B0_Tacc		 	0x7	/* 14clk */
+#define B0_Tcoh		 	0x0	/*  0clk */
+#define B0_Tah		 	0x0	/*  0clk */
+#define B0_Tacp		 	0x0
+#define B0_PMC		 	0x0	/* normal */
+
+/* BANK1CON: Smedia Glamo 3362 (on GTA02) */
+#define B1_Tacs		 	0x0	/*  0clk */
+#define B1_Tcos		 	0x3	/*  4clk */
+#define B1_Tacc		 	0x3	/*  4clk */
+#define B1_Tcoh		 	0x3	/*  4clk */
+#define B1_Tah		 	0x0	/*  0clk */
+#define B1_Tacp		 	0x0
+#define B1_PMC		 	0x0
+
+#define B2_Tacs		 	0x0
+#define B2_Tcos		 	0x0
+#define B2_Tacc		 	0x7
+#define B2_Tcoh		 	0x0
+#define B2_Tah		 	0x0
+#define B2_Tacp		 	0x0
+#define B2_PMC		 	0x0
+
+#define B3_Tacs		 	0x0	/*  0clk */
+#define B3_Tcos		 	0x3	/*  4clk */
+#define B3_Tacc		 	0x7	/* 14clk */
+#define B3_Tcoh		 	0x1	/*  1clk */
+#define B3_Tah		 	0x0	/*  0clk */
+#define B3_Tacp		 	0x3     /*  6clk */
+#define B3_PMC		 	0x0	/* normal */
+
+#define B4_Tacs		 	0x0	/*  0clk */
+#define B4_Tcos		 	0x0	/*  0clk */
+#define B4_Tacc		 	0x7	/* 14clk */
+#define B4_Tcoh		 	0x0	/*  0clk */
+#define B4_Tah		 	0x0	/*  0clk */
+#define B4_Tacp		 	0x0
+#define B4_PMC		 	0x0	/* normal */
+
+#define B5_Tacs		 	0x0	/*  0clk */
+#define B5_Tcos		 	0x0	/*  0clk */
+#define B5_Tacc		 	0x7	/* 14clk */
+#define B5_Tcoh		 	0x0	/*  0clk */
+#define B5_Tah		 	0x0	/*  0clk */
+#define B5_Tacp		 	0x0
+#define B5_PMC		 	0x0	/* normal */
+
+#define B6_MT		 	0x3	/* SDRAM */
+#define B6_Trcd	 	 	0x1	/* 3clk */
+
+#define B6_SCAN		 	0x1	/* 9bit */
+#define B7_SCAN		 	0x1	/* 9bit */
+
+
+#define B7_MT		 	0x3	/* SDRAM */
+#define B7_Trcd		 	0x1	/* 3clk */
+
+/* REFRESH parameter */
+#define REFEN		 	0x1	/* Refresh enable */
+#define TREFMD		 	0x0	/* CBR(CAS before RAS)/Auto refresh */
+#define Trp		 	0x1	/* 3clk */
+#define Trc		 	0x3	/* 7clk */
+#define Tchr		 	0x2	/* 3clk */
+//#define REFCNT		 	1113	/* period=15.6us, HCLK=60Mhz, (2048+1-15.6*60) */
+#define REFCNT		 	997	/* period=17.5us, HCLK=60Mhz, (2048+1-15.6*60) */
+/**************************************/
+
+_TEXT_BASE:
+	.word	TEXT_BASE
+
+.globl lowlevel_init
+lowlevel_init:
+	/* memory control configuration */
+	/* make r0 relative the current location so that it */
+	/* reads SMRDATA out of FLASH rather than memory ! */
+	adr	r0, SMRDATA
+	ldr	r1, =BWSCON	/* Bus Width Status Controller */
+	add     r2, r0, #13*4
+0:
+	ldr     r3, [r0], #4
+	str     r3, [r1], #4
+	cmp     r2, r0
+	bne     0b
+
+	/* setup asynchronous bus mode */
+	mrc	p15, 0, r1 ,c1 ,c0, 0
+	orr	r1, r1, #0xc0000000
+	mcr	p15, 0, r1, c1, c0, 0
+
+#if defined(CONFIG_ARCH_GTA01_v4) || defined(CONFIG_ARCH_GTA01B_v2) || defined(CONFIG_ARCH_GTA01B_v3)
+	/* switch on power for NAND */
+	ldr	r0, =0x56000010	/* GPBCON */
+	ldr	r1, [r0]
+	orr	r1, r1, #0x10
+	str	r1, [r0]
+
+	ldr	r0, =0x56000014	/* GPBDAT */
+	ldr	r1, [r0]
+	orr	r1, r1, #(1 <<2)
+	str	r1, [r0]
+#endif
+
+#if defined(CONFIG_ARCH_GTA02_v1)
+	/* enable KEEPACT(GPJ3) to make sure PMU keeps us alive */
+	ldr	r0, =0x56000000	/* GPJ base */
+	ldr	r1, [r0, #0xd0]	/* GPJCON */
+	orr	r1, r1, #(1 << 6)
+	str	r1, [r0, #0xd0]
+
+	ldr	r1, [r0, #0xd4]	/* GPJDAT */
+	orr	r1, r1, #(1 << 3)
+	str	r1, [r0, #0xd4]
+#elif CONFIG_GTA02_REVISION >= 2
+	/* enable KEEPACT(GPJ8) to make sure PMU keeps us alive */
+	ldr	r0, =0x56000000	/* GPJ base */
+	ldr	r1, [r0, #0xd0]	/* GPJCON */
+	orr	r1, r1, #(1 << 16)
+	str	r1, [r0, #0xd0]
+
+	ldr	r1, [r0, #0xd4]	/* GPJDAT */
+	orr	r1, r1, #(1 << 8)
+	str	r1, [r0, #0xd4]
+#endif
+	/* everything is fine now */
+	mov	pc, lr
+
+	.ltorg
+/* the literal pools origin */
+
+SMRDATA:
+    .word (0+(B1_BWSCON<<4)+(B2_BWSCON<<8)+(B3_BWSCON<<12)+(B4_BWSCON<<16)+(B5_BWSCON<<20)+(B6_BWSCON<<24)+(B7_BWSCON<<28))
+    .word ((B0_Tacs<<13)+(B0_Tcos<<11)+(B0_Tacc<<8)+(B0_Tcoh<<6)+(B0_Tah<<4)+(B0_Tacp<<2)+(B0_PMC))
+    .word ((B1_Tacs<<13)+(B1_Tcos<<11)+(B1_Tacc<<8)+(B1_Tcoh<<6)+(B1_Tah<<4)+(B1_Tacp<<2)+(B1_PMC))
+    .word ((B2_Tacs<<13)+(B2_Tcos<<11)+(B2_Tacc<<8)+(B2_Tcoh<<6)+(B2_Tah<<4)+(B2_Tacp<<2)+(B2_PMC))
+    .word ((B3_Tacs<<13)+(B3_Tcos<<11)+(B3_Tacc<<8)+(B3_Tcoh<<6)+(B3_Tah<<4)+(B3_Tacp<<2)+(B3_PMC))
+    .word ((B4_Tacs<<13)+(B4_Tcos<<11)+(B4_Tacc<<8)+(B4_Tcoh<<6)+(B4_Tah<<4)+(B4_Tacp<<2)+(B4_PMC))
+    .word ((B5_Tacs<<13)+(B5_Tcos<<11)+(B5_Tacc<<8)+(B5_Tcoh<<6)+(B5_Tah<<4)+(B5_Tacp<<2)+(B5_PMC))
+    .word ((B6_MT<<15)+(B6_Trcd<<2)+(B6_SCAN))
+    .word ((B7_MT<<15)+(B7_Trcd<<2)+(B7_SCAN))
+    .word ((REFEN<<23)+(TREFMD<<22)+(Trp<<20)+(Trc<<18)+(Tchr<<16)+REFCNT)
+#if CONFIG_GTA02_REVISION >= 2
+    .word 0xb1
+#else
+    .word 0xb2
+#endif
+    .word 0x30
+    .word 0x30