upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 
u-boot/board/korat/init.S

80 lines
2.3 KiB

/*
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <asm-offsets.h>
#include <ppc_asm.tmpl>
#include <asm/mmu.h>
#include <config.h>
/**************************************************************************
* TLB TABLE
*
* This table is used by the cpu boot code to setup the initial tlb
* entries. Rather than make broad assumptions in the cpu source tree,
* this table lets each board set things up however they like.
*
* Pointer to the table is returned in r1
*
*************************************************************************/
.section .bootpg,"ax"
.globl tlbtab
tlbtab:
tlbtab_start
/*
* BOOT_CS (FLASH) must be first. Before relocation SA_I can be off to use the
* speed up boot process. It is patched after relocation to enable SA_I
*/
tlbentry( 0xF0000000, SZ_256M, 0xF0000000, 1, AC_RWX | SA_G )
/*
* TLB entries for SDRAM are not needed on this platform. They are
* generated dynamically in the SPD DDR2 detection routine.
*/
#ifdef CONFIG_SYS_INIT_RAM_DCACHE
/* TLB-entry for init-ram in dcache (SA_I must be turned off!) */
tlbentry( CONFIG_SYS_INIT_RAM_ADDR, SZ_64K, CONFIG_SYS_INIT_RAM_ADDR, 0,
AC_RWX | SA_G )
#endif
/* TLB-entry for PCI Memory */
tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x00000000, SZ_256M,
CONFIG_SYS_PCI_MEMBASE + 0x00000000, 1, AC_RW | SA_IG )
tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x10000000, SZ_256M,
CONFIG_SYS_PCI_MEMBASE + 0x10000000, 1, AC_RW | SA_IG )
tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x20000000, SZ_256M,
CONFIG_SYS_PCI_MEMBASE + 0x20000000, 1, AC_RW | SA_IG )
tlbentry( CONFIG_SYS_PCI_MEMBASE + 0x30000000, SZ_256M,
CONFIG_SYS_PCI_MEMBASE + 0x30000000, 1, AC_RW | SA_IG )
/* TLB-entry for EBC */
tlbentry( CONFIG_SYS_CPLD_BASE, SZ_1K, CONFIG_SYS_CPLD_BASE, 1, AC_RW | SA_IG )
/* TLB-entry for Internal Registers & OCM */
/* I wonder why this must be executable -- lrj@acm.org 2007-10-08 */
tlbentry( 0xE0000000, SZ_16M, 0xE0000000, 0, AC_RWX | SA_I )
/*TLB-entry PCI registers*/
tlbentry( 0xEEC00000, SZ_1K, 0xEEC00000, 1, AC_RW | SA_IG )
/* TLB-entry for peripherals */
tlbentry( 0xEF000000, SZ_16M, 0xEF000000, 1, AC_RW | SA_IG)
/* TLB-entry PCI IO Space - from sr@denx.de */
tlbentry(0xE8000000, SZ_64K, 0xE8000000, 1, AC_RW | SA_IG)
tlbtab_end
#if defined(CONFIG_KORAT_PERMANENT)
.globl korat_branch_absolute
korat_branch_absolute:
mtlr r3
blr
#endif