+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2003 Josef Baumgartner <josef.baumgartner@telex.de>
* Based on code from Bernhard Kuhn <bkuhn@metrowerks.com>
*
* Copyright 2010-2012 Freescale Semiconductor, Inc.
* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm-offsets.h>
#include <config.h>
-#include <timestamp.h>
-#include "version.h"
#include <asm/cache.h>
-#ifndef CONFIG_IDENT_STRING
-#define CONFIG_IDENT_STRING ""
-#endif
-
#define _START _start
#define _FAULT _fault
rte;
#if defined(CONFIG_SERIAL_BOOT)
-#define ASM_DRAMINIT (asm_dram_init - CONFIG_SYS_TEXT_BASE + CONFIG_SYS_INIT_RAM_ADDR)
+#define ASM_DRAMINIT (asm_dram_init - CONFIG_SYS_TEXT_BASE + \
+ CONFIG_SYS_INIT_RAM_ADDR)
#define ASM_DRAMINIT_N (asm_dram_init - CONFIG_SYS_TEXT_BASE)
-#define ASM_SBF_IMG_HDR (asm_sbf_img_hdr - CONFIG_SYS_TEXT_BASE + CONFIG_SYS_INIT_RAM_ADDR)
+#define ASM_SBF_IMG_HDR (asm_sbf_img_hdr - CONFIG_SYS_TEXT_BASE + \
+ CONFIG_SYS_INIT_RAM_ADDR)
#endif
.text
/*
- * Vector table. This is used for initial platform startup.
- * These vectors are to catch any un-intended traps.
+ * Vector table. This is used for initial platform startup.
+ * These vectors are to catch any un-intended traps.
*/
_vectors:
#if defined(CONFIG_SERIAL_BOOT)
-INITSP: .long 0 /* Initial SP */
+INITSP: .long 0 /* Initial SP */
#ifdef CONFIG_CF_SBF
-INITPC: .long ASM_DRAMINIT /* Initial PC */
+INITPC: .long ASM_DRAMINIT /* Initial PC */
#endif
#ifdef CONFIG_SYS_NAND_BOOT
-INITPC: .long ASM_DRAMINIT_N /* Initial PC */
+INITPC: .long ASM_DRAMINIT_N /* Initial PC */
#endif
#else
-INITSP: .long 0 /* Initial SP */
-INITPC: .long _START /* Initial PC */
+INITSP: .long 0 /* Initial SP */
+INITPC: .long _START /* Initial PC */
#endif
-vector02: .long _FAULT /* Access Error */
-vector03: .long _FAULT /* Address Error */
-vector04: .long _FAULT /* Illegal Instruction */
-vector05: .long _FAULT /* Reserved */
-vector06: .long _FAULT /* Reserved */
-vector07: .long _FAULT /* Reserved */
-vector08: .long _FAULT /* Privilege Violation */
-vector09: .long _FAULT /* Trace */
-vector0A: .long _FAULT /* Unimplemented A-Line */
-vector0B: .long _FAULT /* Unimplemented F-Line */
-vector0C: .long _FAULT /* Debug Interrupt */
-vector0D: .long _FAULT /* Reserved */
-vector0E: .long _FAULT /* Format Error */
-vector0F: .long _FAULT /* Unitialized Int. */
+vector02_0F:
+.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
+.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
/* Reserved */
vector10_17:
.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
-vector18: .long _FAULT /* Spurious Interrupt */
-vector19: .long _FAULT /* Autovector Level 1 */
-vector1A: .long _FAULT /* Autovector Level 2 */
-vector1B: .long _FAULT /* Autovector Level 3 */
-vector1C: .long _FAULT /* Autovector Level 4 */
-vector1D: .long _FAULT /* Autovector Level 5 */
-vector1E: .long _FAULT /* Autovector Level 6 */
-vector1F: .long _FAULT /* Autovector Level 7 */
+vector18_1F:
+.long _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT, _FAULT
#if !defined(CONFIG_SERIAL_BOOT)
#if defined(CONFIG_SERIAL_BOOT)
/* Image header: chksum 4 bytes, len 4 bytes, img dest 4 bytes */
asm_sbf_img_hdr:
- .long 0x00000000 /* checksum, not yet implemented */
- .long 0x00040000 /* image length */
+ .long 0x00000000 /* checksum, not yet implemented */
+ .long 0x00040000 /* image length */
.long CONFIG_SYS_TEXT_BASE /* image to be relocated at */
asm_dram_init:
- move.w #0x2700,%sr /* Mask off Interrupt */
+ move.w #0x2700,%sr /* Mask off Interrupt */
#ifdef CONFIG_SYS_NAND_BOOT
/* for assembly stack */
movec %d0, %RAMBAR1
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
- clr.l %sp@-
+ clr.l %sp@-
#endif
#ifdef CONFIG_CF_SBF
movec %d0, %RAMBAR1
/* initialize general use internal ram */
- move.l #0, %d0
- move.l #(ICACHE_STATUS), %a1 /* icache */
- move.l #(DCACHE_STATUS), %a2 /* dcache */
- move.l %d0, (%a1)
- move.l %d0, (%a2)
+ move.l #0, %d0
+ move.l #(ICACHE_STATUS), %a1 /* icache */
+ move.l #(DCACHE_STATUS), %a2 /* dcache */
+ move.l %d0, (%a1)
+ move.l %d0, (%a2)
/* invalidate and disable cache */
move.l #(CONFIG_SYS_ICACHE_INV + CONFIG_SYS_DCACHE_INV), %d0
movec %d0, %ACR3
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
- clr.l %sp@-
+ clr.l %sp@-
+#ifdef CONFIG_SYS_CS0_BASE
/* Must disable global address */
move.l #0xFC008000, %a1
move.l #(CONFIG_SYS_CS0_BASE), (%a1)
move.l #(CONFIG_SYS_CS0_CTRL), (%a1)
move.l #0xFC008004, %a1
move.l #(CONFIG_SYS_CS0_MASK), (%a1)
-#endif /* CONFIG_CF_SBF */
+#endif
+#endif /* CONFIG_CF_SBF */
#ifdef CONFIG_MCF5441x
/* TC: enable all peripherals,
move.l #0xFC04002D, %a1
#if defined(CONFIG_CF_SBF)
- move.b #23, (%a1) /* dspi */
-#endif
- move.b #46, (%a1) /* DDR */
-
- /* slew settings */
- move.l #0xEC094060, %a1
- move.b #0, (%a1)
-
- /* use vco instead of cpu*2 clock for ddr clock */
- move.l #0xEC09001A, %a1
- move.w #0xE01D, (%a1)
-
- /* DDR settings */
- move.l #0xFC0B8180, %a1
- move.l #0x00000000, (%a1)
- move.l #0x40000000, (%a1)
-
- move.l #0xFC0B81AC, %a1
- move.l #0x01030203, (%a1)
-
- move.l #0xFC0B8000, %a1
- move.l #0x01010101, (%a1)+ /* 0x00 */
- move.l #0x00000101, (%a1)+ /* 0x04 */
- move.l #0x01010100, (%a1)+ /* 0x08 */
- move.l #0x01010000, (%a1)+ /* 0x0C */
- move.l #0x00010101, (%a1)+ /* 0x10 */
- move.l #0xFC0B8018, %a1
- move.l #0x00010100, (%a1)+ /* 0x18 */
- move.l #0x00000001, (%a1)+ /* 0x1C */
- move.l #0x01000001, (%a1)+ /* 0x20 */
- move.l #0x00000100, (%a1)+ /* 0x24 */
- move.l #0x00010001, (%a1)+ /* 0x28 */
- move.l #0x00000200, (%a1)+ /* 0x2C */
- move.l #0x01000002, (%a1)+ /* 0x30 */
- move.l #0x00000000, (%a1)+ /* 0x34 */
- move.l #0x00000100, (%a1)+ /* 0x38 */
- move.l #0x02000100, (%a1)+ /* 0x3C */
- move.l #0x02000407, (%a1)+ /* 0x40 */
- move.l #0x02030007, (%a1)+ /* 0x44 */
- move.l #0x02000100, (%a1)+ /* 0x48 */
- move.l #0x0A030203, (%a1)+ /* 0x4C */
- move.l #0x00020708, (%a1)+ /* 0x50 */
- move.l #0x00050008, (%a1)+ /* 0x54 */
- move.l #0x04030002, (%a1)+ /* 0x58 */
- move.l #0x00000004, (%a1)+ /* 0x5C */
- move.l #0x020A0000, (%a1)+ /* 0x60 */
- move.l #0x0C00000E, (%a1)+ /* 0x64 */
- move.l #0x00002004, (%a1)+ /* 0x68 */
- move.l #0x00000000, (%a1)+ /* 0x6C */
- move.l #0x00100010, (%a1)+ /* 0x70 */
- move.l #0x00100010, (%a1)+ /* 0x74 */
- move.l #0x00000000, (%a1)+ /* 0x78 */
- move.l #0x07990000, (%a1)+ /* 0x7C */
- move.l #0xFC0B80A0, %a1
- move.l #0x00000000, (%a1)+ /* 0xA0 */
- move.l #0x00C80064, (%a1)+ /* 0xA4 */
- move.l #0x44520002, (%a1)+ /* 0xA8 */
- move.l #0x00C80023, (%a1)+ /* 0xAC */
- move.l #0xFC0B80B4, %a1
- move.l #0x0000C350, (%a1) /* 0xB4 */
- move.l #0xFC0B80E0, %a1
- move.l #0x04000000, (%a1)+ /* 0xE0 */
- move.l #0x03000304, (%a1)+ /* 0xE4 */
- move.l #0x40040000, (%a1)+ /* 0xE8 */
- move.l #0xC0004004, (%a1)+ /* 0xEC */
- move.l #0x0642C000, (%a1)+ /* 0xF0 */
- move.l #0x00000642, (%a1)+ /* 0xF4 */
- move.l #0xFC0B8024, %a1
- tpf
- move.l #0x01000100, (%a1) /* 0x24 */
-
- move.l #0x2000, %d1
- jsr asm_delay
-#endif /* CONFIG_MCF5441x */
-
-#ifdef CONFIG_MCF5445x
- /* Dram Initialization a1, a2, and d0 */
- /* mscr sdram */
- move.l #0xFC0A4074, %a1
- move.b #(CONFIG_SYS_SDRAM_DRV_STRENGTH), (%a1)
- nop
-
- /* SDRAM Chip 0 and 1 */
- move.l #0xFC0B8110, %a1
- move.l #0xFC0B8114, %a2
-
- /* calculate the size */
- move.l #0x13, %d1
- move.l #(CONFIG_SYS_SDRAM_SIZE), %d2
-#ifdef CONFIG_SYS_SDRAM_BASE1
- lsr.l #1, %d2
-#endif
-
-dramsz_loop:
- lsr.l #1, %d2
- add.l #1, %d1
- cmp.l #1, %d2
- bne dramsz_loop
-#ifdef CONFIG_SYS_NAND_BOOT
- beq asm_nand_chk_status
-#endif
- /* SDRAM Chip 0 and 1 */
- move.l #(CONFIG_SYS_SDRAM_BASE), (%a1)
- or.l %d1, (%a1)
-#ifdef CONFIG_SYS_SDRAM_BASE1
- move.l #(CONFIG_SYS_SDRAM_BASE1), (%a2)
- or.l %d1, (%a2)
-#endif
- nop
-
- /* dram cfg1 and cfg2 */
- move.l #0xFC0B8008, %a1
- move.l #(CONFIG_SYS_SDRAM_CFG1), (%a1)
- nop
- move.l #0xFC0B800C, %a2
- move.l #(CONFIG_SYS_SDRAM_CFG2), (%a2)
- nop
-
- move.l #0xFC0B8000, %a1 /* Mode */
- move.l #0xFC0B8004, %a2 /* Ctrl */
-
- /* Issue PALL */
- move.l #(CONFIG_SYS_SDRAM_CTRL + 2), (%a2)
- nop
-
-#ifdef CONFIG_M54455EVB
- /* Issue LEMR */
- move.l #(CONFIG_SYS_SDRAM_EMOD + 0x408), (%a1)
- nop
- move.l #(CONFIG_SYS_SDRAM_MODE + 0x300), (%a1)
- nop
+ move.b #23, (%a1) /* dspi */
#endif
+#endif /* CONFIG_MCF5441x */
- move.l #1000, %d1
- jsr asm_delay
-
- /* Issue PALL */
- move.l #(CONFIG_SYS_SDRAM_CTRL + 2), (%a2)
- nop
-
- /* Perform two refresh cycles */
- move.l #(CONFIG_SYS_SDRAM_CTRL + 4), %d0
- nop
- move.l %d0, (%a2)
- move.l %d0, (%a2)
- nop
-
-#ifdef CONFIG_M54455EVB
- move.l #(CONFIG_SYS_SDRAM_MODE + 0x200), (%a1)
- nop
-#elif defined(CONFIG_M54451EVB)
- /* Issue LEMR */
- move.l #(CONFIG_SYS_SDRAM_MODE), (%a1)
- nop
- move.l #(CONFIG_SYS_SDRAM_EMOD), (%a1)
-#endif
-
- move.l #500, %d1
- jsr asm_delay
-
- move.l #(CONFIG_SYS_SDRAM_CTRL), %d1
- and.l #0x7FFFFFFF, %d1
-#ifdef CONFIG_M54455EVB
- or.l #0x10000C00, %d1
-#elif defined(CONFIG_M54451EVB)
- or.l #0x10000C00, %d1
-#endif
- move.l %d1, (%a2)
- nop
-
- move.l #2000, %d1
- jsr asm_delay
-#endif /* CONFIG_MCF5445x */
+ /* mandatory board level ddr-sdram init,
+ * for both 5441x and 5445x
+ */
+ bsr sbf_dram_init
#ifdef CONFIG_CF_SBF
/*
move.b #0x80, (%a2)
#endif
-#ifdef CONFIG_MCF5445x
- move.l #0xFC0A4063, %a0
- move.b #0x7F, (%a0)
-#endif
/* Configure DSPI module */
move.l #0xFC05C000, %a0
move.l #0x80FF0C00, (%a0) /* Master, clear TX/RX FIFO */
#ifdef CONFIG_MCF5441x
move.l #0x3E000016, (%a0)
#endif
-#ifdef CONFIG_MCF5445x
- move.l #0x3E000011, (%a0)
-#endif
move.l #0xFC05C034, %a2 /* dtfr */
move.l #0xFC05C03B, %a3 /* drfr */
move.b (%a3), %d1
rts
-#endif /* CONFIG_CF_SBF */
+#endif /* CONFIG_CF_SBF */
#ifdef CONFIG_SYS_NAND_BOOT
/* copy 4 boot pages to dram as soon as possible */
move.l %d1, (%a1)
/* initialize general use internal ram */
- move.l #0, %d0
- move.l #(CACR_STATUS), %a1 /* CACR */
- move.l #(ICACHE_STATUS), %a2 /* icache */
- move.l #(DCACHE_STATUS), %a3 /* dcache */
- move.l %d0, (%a1)
- move.l %d0, (%a2)
- move.l %d0, (%a3)
+ move.l #0, %d0
+ move.l #(CACR_STATUS), %a1 /* CACR */
+ move.l #(ICACHE_STATUS), %a2 /* icache */
+ move.l #(DCACHE_STATUS), %a3 /* dcache */
+ move.l %d0, (%a1)
+ move.l %d0, (%a2)
+ move.l %d0, (%a3)
/* invalidate and disable cache */
move.l #0x01004100, %d0 /* Invalidate cache cmd */
movec %d0, %ACR2
movec %d0, %ACR3
+#ifdef CONFIG_SYS_CS0_BASE
/* Must disable global address */
move.l #0xFC008000, %a1
move.l #(CONFIG_SYS_CS0_BASE), (%a1)
move.l #(CONFIG_SYS_CS0_CTRL), (%a1)
move.l #0xFC008004, %a1
move.l #(CONFIG_SYS_CS0_MASK), (%a1)
+#endif
/* NAND port configuration */
move.l #0xEC094048, %a1
move.l #0x000e0000, (%a1)
move.l #0x2000, %d1
- jsr asm_delay
+ bsr asm_delay
/* setup nand */
move.l #0xFC0FFF00, %a1
move.l #4, %d2 /* start at 4 */
move.l #0xFC0FFF04, %a0 /* cmd2 */
move.l #0xFC0FFF0C, %a1 /* rar */
- move.l #(CONFIG_SYS_TEXT_BASE + 0xF80), %a2 /* dst */
+ move.l #(CONFIG_SYS_TEXT_BASE + 0xF80), %a2
asm_nand_read:
move.l #0x11000000, %d0 /* rar */
move.l %d0, (%a0)
move.l #0x200, %d1
- jsr asm_delay
+ bsr asm_delay
asm_nand_chk_status:
move.l #0xFC0FFF38, %a4 /* isr */
#endif /* CONFIG_SYS_NAND_BOOT */
+.globl asm_delay
asm_delay:
nop
subq.l #1, %d1
rts
#endif /* CONFIG_CF_SBF || CONFIG_NAND_U_BOOT */
- .text
+.text
. = 0x400
- .globl _start
+.globl _start
_start:
#if !defined(CONFIG_SERIAL_BOOT)
nop
nop
- move.w #0x2700,%sr /* Mask off Interrupt */
+ move.w #0x2700,%sr /* Mask off Interrupt */
/* Set vector base register at the beginning of the Flash */
move.l #CONFIG_SYS_FLASH_BASE, %d0
movec %d0, %RAMBAR1
/* initialize general use internal ram */
- move.l #0, %d0
- move.l #(ICACHE_STATUS), %a1 /* icache */
- move.l #(DCACHE_STATUS), %a2 /* dcache */
- move.l %d0, (%a1)
- move.l %d0, (%a2)
+ move.l #0, %d0
+ move.l #(ICACHE_STATUS), %a1 /* icache */
+ move.l #(DCACHE_STATUS), %a2 /* dcache */
+ move.l %d0, (%a1)
+ move.l %d0, (%a2)
/* invalidate and disable cache */
move.l #(CONFIG_SYS_ICACHE_INV + CONFIG_SYS_DCACHE_INV), %d0
movec %d0, %RAMBAR1
#endif
- /* set stackpointer to end of internal ram to get some stackspace for
- the first c-code */
- move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
- clr.l %sp@-
+ /* put relocation table address to a5 */
+ move.l #__got_start, %a5
- move.l #__got_start, %a5 /* put relocation table address to a5 */
+ /* setup stack initially on top of internal static ram */
+ move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE), %sp
+
+ /*
+ * if configured, malloc_f arena will be reserved first,
+ * then (and always) gd struct space will be reserved
+ */
+ move.l %sp, -(%sp)
+ move.l #board_init_f_alloc_reserve, %a1
+ jsr (%a1)
- bsr cpu_init_f /* run low-level CPU init code (from flash) */
- bsr board_init_f /* run low-level board init code (from flash) */
+ /* update stack and frame-pointers */
+ move.l %d0, %sp
+ move.l %sp, %fp
+
+ /* initialize reserved area */
+ move.l %d0, -(%sp)
+ move.l #board_init_f_init_reserve, %a1
+ jsr (%a1)
+
+ /* run low-level CPU init code (from flash) */
+ move.l #cpu_init_f, %a1
+ jsr (%a1)
+
+ /* run low-level board init code (from flash) */
+ clr.l %sp@-
+ move.l #board_init_f, %a1
+ jsr (%a1)
/* board_init_f() does not return */
-/*------------------------------------------------------------------------------*/
+/******************************************************************************/
/*
- * void relocate_code (addr_sp, gd, addr_moni)
+ * void relocate_code(addr_sp, gd, addr_moni)
*
* This "function" does not return, instead it continues in RAM
* after relocating the monitor code.
* r5 = length in bytes
* r6 = cachelinesize
*/
- .globl relocate_code
+.globl relocate_code
relocate_code:
- link.w %a6,#0
- move.l 8(%a6), %sp /* set new stack pointer */
+ link.w %a6,#0
+ move.l 8(%a6), %sp /* set new stack pointer */
- move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
- move.l 16(%a6), %a0 /* Save copy of Destination Address */
+ move.l 12(%a6), %d0 /* Save copy of Global Data pointer */
+ move.l 16(%a6), %a0 /* Save copy of Destination Address */
- move.l #CONFIG_SYS_MONITOR_BASE, %a1
- move.l #__init_end, %a2
- move.l %a0, %a3
+ move.l #CONFIG_SYS_MONITOR_BASE, %a1
+ move.l #__init_end, %a2
+ move.l %a0, %a3
/* copy the code to RAM */
1:
- move.l (%a1)+, (%a3)+
- cmp.l %a1,%a2
- bgt.s 1b
+ move.l (%a1)+, (%a3)+
+ cmp.l %a1,%a2
+ bgt.s 1b
/*
* We are done. Do not return, instead branch to second part of board
*/
move.l %a0, %a1
add.l #(__got_start - CONFIG_SYS_MONITOR_BASE),%a1
- move.l %a1,%a5 /* * fix got pointer register a5 */
+ move.l %a1,%a5 /* fix got pointer register a5 */
move.l %a0, %a2
add.l #(__got_end - CONFIG_SYS_MONITOR_BASE),%a2
bne 7b
/* calculate relative jump to board_init_r in ram */
- move.l %a0, %a1
- add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
+ move.l %a0, %a1
+ add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1
/* set parameters for board_init_r */
- move.l %a0,-(%sp) /* dest_addr */
- move.l %d0,-(%sp) /* gd */
+ move.l %a0,-(%sp) /* dest_addr */
+ move.l %d0,-(%sp) /* gd */
jsr (%a1)
-/*------------------------------------------------------------------------------*/
+/******************************************************************************/
+
/* exception code */
- .globl _fault
+.globl _fault
_fault:
- bra _fault
- .globl _exc_handler
+ bra _fault
+.globl _exc_handler
_exc_handler:
SAVE_ALL
movel %sp,%sp@-
- bsr exc_handler
+ bsr exc_handler
addql #4,%sp
RESTORE_ALL
- .globl _int_handler
+.globl _int_handler
_int_handler:
SAVE_ALL
movel %sp,%sp@-
- bsr int_handler
+ bsr int_handler
addql #4,%sp
RESTORE_ALL
-/*------------------------------------------------------------------------------*/
+/******************************************************************************/
- .globl version_string
-version_string:
- .ascii U_BOOT_VERSION_STRING, "\0"
- .align 4
+.align 4
projects / platform / kernel / u-boot.git / blobdiff