* Copyright (c) 2008 Nuovation System Designs, LLC
* Grant Erickson <gerickson@nuovations.com>
*
- * SPDX-License-Identifier: GPL-2.0 ibm-pibs
+ * SPDX-License-Identifier: GPL-2.0 IBM-pibs
*/
/*
#include <asm/ppc4xx.h>
#include <version.h>
-#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */
-
#include <ppc_asm.tmpl>
#include <ppc_defs.h>
.extern ext_bus_cntlr_init
-#ifdef CONFIG_NAND_U_BOOT
- .extern reconfig_tlb0
-#endif
/*
* Set up GOT: Global Offset Table
*
* Use r12 to access the GOT
*/
-#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SPL_BUILD)
+#if !defined(CONFIG_SPL_BUILD)
START_GOT
GOT_ENTRY(_GOT2_TABLE_)
GOT_ENTRY(_FIXUP_TABLE_)
GOT_ENTRY(__bss_end)
GOT_ENTRY(__bss_start)
END_GOT
-#endif /* CONFIG_NAND_SPL */
-
-#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) && \
- !defined(CONFIG_SPL_BUILD)
- /*
- * NAND U-Boot image is started from offset 0
- */
- .text
-#if defined(CONFIG_440)
- bl reconfig_tlb0
-#endif
- GET_GOT
- bl cpu_init_f /* run low-level CPU init code (from Flash) */
- bl board_init_f
- /* NOTREACHED - board_init_f() does not return */
-#endif
+#endif /* CONFIG_SPL_BUILD */
#if defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_BOOT_FROM_XMD)
/*
*/
#if defined(CONFIG_440)
-#if !defined(CONFIG_NAND_SPL)
.section .bootpg,"ax"
-#endif
.globl _start_440
/**************************************************************************/
* r3 - 1st arg to board_init(): IMMP pointer
* r4 - 2nd arg to board_init(): boot flag
*/
-#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SPL_BUILD)
+#if !defined(CONFIG_SPL_BUILD)
.text
.long 0x27051956 /* U-Boot Magic Number */
.globl version_string
defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
defined(CONFIG_460SX)
mtdcr L2_CACHE_CFG,r0 /* Ensure L2 Cache is off */
-#elif defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
- defined(CONFIG_APM821XX)
+#elif defined(CONFIG_460EX) || defined(CONFIG_460GT)
lis r1, 0x0000
ori r1,r1,0x0008 /* Set L2_CACHE_CFG[RDBW]=1 */
mtdcr L2_CACHE_CFG,r1
ori r1,r1, 0x0980 /* fourth 64k */
mtdcr ISRAM0_SB3CR,r1
#elif defined(CONFIG_440SPE) || defined(CONFIG_460EX) || \
- defined(CONFIG_460GT) || defined(CONFIG_APM821XX)
+ defined(CONFIG_460GT)
lis r1,0x0000 /* BAS = X_0000_0000 */
ori r1,r1,0x0984 /* first 64k */
mtdcr ISRAM0_SB0CR,r1
lis r1, 0x0003
ori r1,r1, 0x0984 /* fourth 64k */
mtdcr ISRAM0_SB3CR,r1
-#if defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
- defined(CONFIG_APM821XX)
+#if defined(CONFIG_460EX) || defined(CONFIG_460GT)
lis r2,0x7fff
ori r2,r2,0xffff
mfdcr r1,ISRAM1_DPC
stwu r1,-8(r1) /* Save back chain and move SP */
stw r0,+12(r1) /* Save return addr (underflow vect) */
-#ifdef CONFIG_NAND_SPL
- bl nand_boot_common /* will not return */
-#else
#ifndef CONFIG_SPL_BUILD
GET_GOT
#endif
bl cpu_init_f /* run low-level CPU init code (from Flash) */
+#ifdef CONFIG_SYS_GENERIC_BOARD
+ mr r3, r1
+ bl board_init_f_mem
+ mr r1, r3
+ li r0,0
+ stwu r0, -4(r1)
+ stwu r0, -4(r1)
+#endif
+ li r3, 0
bl board_init_f
/* NOTREACHED - board_init_f() does not return */
-#endif
#endif /* CONFIG_440 */
/*****************************************************************************/
-#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \
+#if defined(CONFIG_405GP) || \
defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \
defined(CONFIG_405EX) || defined(CONFIG_405)
/*----------------------------------------------------------------------- */
stw r0, +12(r1) /* Save return addr (underflow vect) */
#endif /* CONFIG_SYS_INIT_DCACHE_CS */
-#ifdef CONFIG_NAND_SPL
- bl nand_boot_common /* will not return */
-#else
GET_GOT /* initialize GOT access */
bl cpu_init_f /* run low-level CPU init code (from Flash) */
-
+#ifdef CONFIG_SYS_GENERIC_BOARD
+ mr r3, r1
+ bl board_init_f_mem
+ mr r1, r3
+ stwu r0, -4(r1)
+ stwu r0, -4(r1)
+#endif
+ li r3, 0
bl board_init_f /* run first part of init code (from Flash) */
/* NOTREACHED - board_init_f() does not return */
-#endif /* CONFIG_NAND_SPL */
-
-#endif /* CONFIG_405GP || CONFIG_405CR || CONFIG_405 || CONFIG_405EP */
+#endif /* CONFIG_405GP || CONFIG_405 || CONFIG_405EP */
/*----------------------------------------------------------------------- */
-#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SPL_BUILD)
+#if !defined(CONFIG_SPL_BUILD)
/*
* This code finishes saving the registers to the exception frame
* and jumps to the appropriate handler for the exception.
blr
function_epilog(dcbz_area)
#endif /* CONFIG_440 */
-#endif /* CONFIG_NAND_SPL */
+#endif /* CONFIG_SPL_BUILD */
/*------------------------------------------------------------------------------- */
/* Function: in8 */
blr
function_epilog(mftlb1)
#endif /* CONFIG_440 */
-
-#if defined(CONFIG_NAND_SPL)
-/*
- * void nand_boot_relocate(dst, src, bytes)
- *
- * r3 = Destination address to copy code to (in SDRAM)
- * r4 = Source address to copy code from
- * r5 = size to copy in bytes
- */
-nand_boot_relocate:
- mr r6,r3
- mr r7,r4
- mflr r8
-
- /*
- * Copy SPL from icache into SDRAM
- */
- subi r3,r3,4
- subi r4,r4,4
- srwi r5,r5,2
- mtctr r5
-..spl_loop:
- lwzu r0,4(r4)
- stwu r0,4(r3)
- bdnz ..spl_loop
-
- /*
- * Calculate "corrected" link register, so that we "continue"
- * in execution in destination range
- */
- sub r3,r7,r6 /* r3 = src - dst */
- sub r8,r8,r3 /* r8 = link-reg - (src - dst) */
- mtlr r8
- blr
-
-nand_boot_common:
- /*
- * First initialize SDRAM. It has to be available *before* calling
- * nand_boot().
- */
- lis r3,CONFIG_SYS_SDRAM_BASE@h
- ori r3,r3,CONFIG_SYS_SDRAM_BASE@l
- bl initdram
-
- /*
- * Now copy the 4k SPL code into SDRAM and continue execution
- * from there.
- */
- lis r3,CONFIG_SYS_NAND_BOOT_SPL_DST@h
- ori r3,r3,CONFIG_SYS_NAND_BOOT_SPL_DST@l
- lis r4,CONFIG_SYS_NAND_BOOT_SPL_SRC@h
- ori r4,r4,CONFIG_SYS_NAND_BOOT_SPL_SRC@l
- lis r5,CONFIG_SYS_NAND_BOOT_SPL_SIZE@h
- ori r5,r5,CONFIG_SYS_NAND_BOOT_SPL_SIZE@l
- bl nand_boot_relocate
-
- /*
- * We're running from SDRAM now!!!
- *
- * It is necessary for 4xx systems to relocate from running at
- * the original location (0xfffffxxx) to somewhere else (SDRAM
- * preferably). This is because CS0 needs to be reconfigured for
- * NAND access. And we can't reconfigure this CS when currently
- * "running" from it.
- */
-
- /*
- * Finally call nand_boot() to load main NAND U-Boot image from
- * NAND and jump to it.
- */
- bl nand_boot /* will not return */
-#endif /* CONFIG_NAND_SPL */
projects / oweals / u-boot.git / blobdiff