fpga: zynqpl: Add support for zc7035

[oweals/u-boot.git] / arch / powerpc / cpu / 74xx_7xx / start.S

diff --git a/arch/powerpc/cpu/74xx_7xx/start.S b/arch/powerpc/cpu/74xx_7xx/start.S
index a36af5a83fd4967e747e3d36cbaf000966e8a57e..83937812bd2757c89c64087429bcec9fbfd281d4 100644 (file)
--- a/arch/powerpc/cpu/74xx_7xx/start.S
+++ b/arch/powerpc/cpu/74xx_7xx/start.S
@@ -4,23 +4,7 @@
  *  Copyright (C) 2000,2001,2002 Wolfgang Denk <wd@denx.de>
  *  Copyright (C) 2001  Josh Huber <huber@mclx.com>
  *
- * 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
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 /*  U-Boot - Startup Code for PowerPC based Embedded Boards
@@ -32,9 +16,9 @@
  *  board_init lies at a quite high address and when the cpu has
  *  jumped there, everything is ok.
  */
+#include <asm-offsets.h>
 #include <config.h>
 #include <74xx_7xx.h>
-#include <timestamp.h>
 #include <version.h>
 
 #include <ppc_asm.tmpl>
@@ -42,17 +26,7 @@
 
 #include <asm/cache.h>
 #include <asm/mmu.h>
-
-#if !defined(CONFIG_DB64360) && \
-    !defined(CONFIG_DB64460) && \
-    !defined(CONFIG_CPCI750) && \
-    !defined(CONFIG_P3Mx)
-#include <galileo/gt64260R.h>
-#endif
-
-#ifndef  CONFIG_IDENT_STRING
-#define  CONFIG_IDENT_STRING ""
-#endif
+#include <asm/u-boot.h>
 
 /* We don't want the  MMU yet.
 */
@@ -75,7 +49,7 @@
        GOT_ENTRY(transfer_to_handler)
 
        GOT_ENTRY(__init_end)
-       GOT_ENTRY(_end)
+       GOT_ENTRY(__bss_end)
        GOT_ENTRY(__bss_start)
        END_GOT
 
@@ -87,24 +61,12 @@
        .long   0x27051956              /* U-Boot Magic Number          */
        .globl  version_string
 version_string:
-       .ascii  U_BOOT_VERSION
-       .ascii  " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")"
-       .ascii  CONFIG_IDENT_STRING, "\0"
+       .ascii U_BOOT_VERSION_STRING, "\0"
 
        . = EXC_OFF_SYS_RESET
        .globl  _start
 _start:
-       li      r21, BOOTFLAG_COLD      /* Normal Power-On: Boot from FLASH */
        b       boot_cold
-       sync
-
-       . = EXC_OFF_SYS_RESET + 0x10
-
-       .globl  _start_warm
-_start_warm:
-       li      r21, BOOTFLAG_WARM      /* Software reboot              */
-       b       boot_warm
-       sync
 
        /* the boot code is located below the exception table */
 
@@ -188,7 +150,6 @@ _end_of_vectors:
        . = 0x2000
 
 boot_cold:
-boot_warm:
        /* disable everything */
        li      r0, 0
        mtspr   HID0, r0
@@ -288,14 +249,11 @@ in_flash:
        bl      cpu_init_f
        sync
 
-       mr      r3, r21
-
-       /* r3: BOOTFLAG */
        /* run 1st part of board init code (from Flash)   */
        bl      board_init_f
        sync
 
-       /* NOTREACHED */
+       /* NOTREACHED - board_init_f() does not return */
 
        .globl  invalidate_bats
 invalidate_bats:
@@ -722,17 +680,19 @@ in_ram:
        beq     4f
 3:     lwzu    r4,4(r3)
        lwzux   r0,r4,r11
+       cmpwi   r0,0
        add     r0,r0,r11
-       stw     r10,0(r3)
+       stw     r4,0(r3)
+       beq-    5f
        stw     r0,0(r4)
-       bdnz    3b
+5:     bdnz    3b
 4:
 /* clear_bss: */
        /*
         * Now clear BSS segment
         */
        lwz     r3,GOT(__bss_start)
-       lwz     r4,GOT(_end)
+       lwz     r4,GOT(__bss_end)
 
        cmplw   0, r3, r4
        beq     6f
@@ -745,11 +705,7 @@ in_ram:
        bne     5b
 6:
        mr      r3, r10         /* Destination Address          */
-#if defined(CONFIG_DB64360)    || \
-    defined(CONFIG_DB64460)     || \
-    defined(CONFIG_CPCI750)    || \
-    defined(CONFIG_PPMC7XX)     || \
-    defined(CONFIG_P3Mx)
+#if defined(CONFIG_PPMC7XX)
        mr      r4, r9          /* Use RAM copy of the global data */
 #endif
        bl      after_reloc
@@ -830,7 +786,7 @@ lock_ram_in_cache:
         */
        lis     r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@h
        ori     r3, r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@l
-       li      r4, ((CONFIG_SYS_INIT_RAM_END & ~31) + \
+       li      r4, ((CONFIG_SYS_INIT_RAM_SIZE & ~31) + \
                     (CONFIG_SYS_INIT_RAM_ADDR & 31) + 31) / 32
        mtctr   r4
 1:
@@ -851,7 +807,7 @@ unlock_ram_in_cache:
        /* invalidate the INIT_RAM section */
        lis     r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@h
        ori     r3, r3, (CONFIG_SYS_INIT_RAM_ADDR & ~31)@l
-       li      r4, ((CONFIG_SYS_INIT_RAM_END & ~31) + \
+       li      r4, ((CONFIG_SYS_INIT_RAM_SIZE & ~31) + \
                     (CONFIG_SYS_INIT_RAM_ADDR & 31) + 31) / 32
        mtctr   r4
 1:     icbi    r0, r3