u-boot/board/esd/pmc440/init.S
Stefan Roese 345b77baca ppc4xx: Remove 4xx NAND booting support
As ppc4xx currently only supports the deprecated nand_spl infrastructure
and nobody seems to have time / resources to port this over to the newer
SPL infrastructure, lets remove NAND booting completely.

This should not affect the "normal", non NAND-booting ppc4xx platforms
that are currently supported.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Tirumala Marri <tmarri@apm.com>
Cc: Matthias Fuchs <matthias.fuchs@esd.eu>
Cc: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Rini <trini@ti.com>
Tested-by: Matthias Fuchs <matthias.fuchs@esd.eu>
2014-03-07 10:59:06 -05:00

69 lines
2.2 KiB
ArmAsm

/*
* 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( CONFIG_SYS_BOOT_BASE_ADDR, SZ_256M, CONFIG_SYS_BOOT_BASE_ADDR, 1, AC_RWX | SA_G )
/* TLB entries for DDR2 SDRAM are generated dynamically */
#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, SZ_256M, CONFIG_SYS_PCI_MEMBASE, 1, AC_RW | SA_IG )
tlbentry( CONFIG_SYS_PCI_MEMBASE1, SZ_256M, CONFIG_SYS_PCI_MEMBASE1, 1, AC_RW | SA_IG )
tlbentry( CONFIG_SYS_PCI_MEMBASE2, SZ_256M, CONFIG_SYS_PCI_MEMBASE2, 1, AC_RW | SA_IG )
tlbentry( CONFIG_SYS_PCI_MEMBASE3, SZ_256M, CONFIG_SYS_PCI_MEMBASE3, 1, AC_RW | SA_IG )
/* TLB-entries for EBC */
/* PMC440 maps EBC to 0xef000000 which is handled by the peripheral
* tlb entry.
* This dummy entry is only for convinience in order not to modify the
* amount of entries. Currently OS/9 relies on this :-)
*/
tlbentry( 0xc0000000, SZ_256M, 0xc0000000, 1, AC_RWX | SA_IG )
/* TLB-entry for NAND */
tlbentry( CONFIG_SYS_NAND_ADDR, SZ_1K, CONFIG_SYS_NAND_ADDR, 1, AC_RWX | SA_IG )
/* TLB-entry for Internal Registers & OCM */
tlbentry( 0xe0000000, SZ_16M, 0xe0000000, 0, AC_RWX | SA_I )
/*TLB-entry PCI registers*/
tlbentry( 0xEEC00000, SZ_1K, 0xEEC00000, 1, AC_RWX | SA_IG )
/* TLB-entry for peripherals */
tlbentry( 0xEF000000, SZ_16M, 0xEF000000, 1, AC_RWX | SA_IG)
/* TLB-entry PCI IO space */
tlbentry(0xE8000000, SZ_64K, 0xE8000000, 1, AC_RWX | SA_IG)
/* TODO: what about high IO space */
tlbtab_end