X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=board%2Famcc%2Fsequoia%2Finit.S;h=f876639d353fdca8c36b6fc0d17c165749d29783;hb=d4db3b86a5e090e21db710bedbbe3e50d4c56428;hp=306c92c157ed8c3406e0c2bffc2b2cf7f3a5d990;hpb=34d51566bc4fb537da9f833aa67169c79cc69a97;p=platform%2Fkernel%2Fu-boot.git diff --git a/board/amcc/sequoia/init.S b/board/amcc/sequoia/init.S index 306c92c..f876639 100644 --- a/board/amcc/sequoia/init.S +++ b/board/amcc/sequoia/init.S @@ -1,29 +1,16 @@ /* + * (C) Copyright 2008 + * Stefan Roese, DENX Software Engineering, sr@denx.de. * - * 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+ */ +#include #include -#include +#include #include -/************************************************************************** +/* * TLB TABLE * * This table is used by the cpu boot code to setup the initial tlb @@ -31,8 +18,7 @@ * this table lets each board set things up however they like. * * Pointer to the table is returned in r1 - * - *************************************************************************/ + */ .section .bootpg,"ax" .globl tlbtab @@ -40,79 +26,54 @@ tlbtab: tlbtab_start /* vxWorks needs this as first entry for the Machine Check interrupt */ - tlbentry( 0x40000000, SZ_256M, 0, 0, AC_R|AC_W|AC_X|SA_G|SA_I ) + tlbentry( 0x40000000, SZ_256M, 0, 0, AC_RWX | SA_IG ) + /* + * The RAM-boot version skips the SDRAM TLB (identified by EPN=0). This + * entry is already configured for SDRAM via the JTAG debugger and mustn't + * be re-initialized by this RAM-booting U-Boot version. + */ +#ifndef CONFIG_SYS_RAMBOOT /* TLB-entry for DDR SDRAM (Up to 2GB) */ #ifdef CONFIG_4xx_DCACHE - tlbentry( CFG_SDRAM_BASE, SZ_256M, CFG_SDRAM_BASE, 0, AC_R|AC_W|AC_X|SA_G) + tlbentry( CONFIG_SYS_SDRAM_BASE, SZ_256M, CONFIG_SYS_SDRAM_BASE, 0, AC_RWX | SA_G) #else - tlbentry( CFG_SDRAM_BASE, SZ_256M, CFG_SDRAM_BASE, 0, AC_R|AC_W|AC_X|SA_G|SA_I ) + tlbentry( CONFIG_SYS_SDRAM_BASE, SZ_256M, CONFIG_SYS_SDRAM_BASE, 0, AC_RWX | SA_IG ) #endif +#endif /* CONFIG_SYS_RAMBOOT */ /* TLB-entry for EBC */ - tlbentry( CFG_BCSR_BASE, SZ_256M, CFG_BCSR_BASE, 1, AC_R|AC_W|AC_X|SA_G|SA_I ) + tlbentry( CONFIG_SYS_BCSR_BASE, SZ_256M, CONFIG_SYS_BCSR_BASE, 1, AC_RWX | SA_IG ) /* BOOT_CS (FLASH) must be forth. Before relocation SA_I can be off to use the * speed up boot process. It is patched after relocation to enable SA_I */ -#ifndef CONFIG_NAND_SPL - tlbentry( CFG_BOOT_BASE_ADDR, SZ_256M, CFG_BOOT_BASE_ADDR, 1, AC_R|AC_W|AC_X|SA_G ) -#else - tlbentry( CFG_NAND_BOOT_SPL_SRC, SZ_4K, CFG_NAND_BOOT_SPL_SRC, 1, AC_R|AC_W|AC_X|SA_G ) -#endif + tlbentry( CONFIG_SYS_BOOT_BASE_ADDR, SZ_256M, CONFIG_SYS_BOOT_BASE_ADDR, 1, AC_RWX | SA_G ) -#ifdef CFG_INIT_RAM_DCACHE +#ifdef CONFIG_SYS_INIT_RAM_DCACHE /* TLB-entry for init-ram in dcache (SA_I must be turned off!) */ - tlbentry( CFG_INIT_RAM_ADDR, SZ_64K, CFG_INIT_RAM_ADDR, 0, AC_R|AC_W|AC_X|SA_G ) + 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( CFG_PCI_MEMBASE, SZ_256M, CFG_PCI_MEMBASE, 1, AC_R|AC_W|SA_G|SA_I ) - tlbentry( CFG_PCI_MEMBASE1, SZ_256M, CFG_PCI_MEMBASE1, 1, AC_R|AC_W|SA_G|SA_I ) - tlbentry( CFG_PCI_MEMBASE2, SZ_256M, CFG_PCI_MEMBASE2, 1, AC_R|AC_W|SA_G|SA_I ) - tlbentry( CFG_PCI_MEMBASE3, SZ_256M, CFG_PCI_MEMBASE3, 1, AC_R|AC_W|SA_G|SA_I ) + 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-entry for NAND */ - tlbentry( CFG_NAND_ADDR, SZ_1K, CFG_NAND_ADDR, 1, AC_R|AC_W|AC_X|SA_G|SA_I ) + 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_R|AC_W|AC_X|SA_I ) + tlbentry( 0xe0000000, SZ_16M, 0xe0000000, 0, AC_RWX | SA_I ) /*TLB-entry PCI registers*/ - tlbentry( 0xEEC00000, SZ_1K, 0xEEC00000, 1, AC_R|AC_W|AC_X|SA_G|SA_I ) + tlbentry( 0xEEC00000, SZ_1K, 0xEEC00000, 1, AC_RWX | SA_IG ) /* TLB-entry for peripherals */ - tlbentry( 0xEF000000, SZ_16M, 0xEF000000, 1, AC_R|AC_W|AC_X|SA_G|SA_I) + tlbentry( 0xEF000000, SZ_16M, 0xEF000000, 1, AC_RWX | SA_IG) /* TLB-entry PCI IO Space - from sr@denx.de */ - tlbentry(0xE8000000, SZ_64K, 0xE8000000, 1, AC_R|AC_W|AC_X|SA_G|SA_I) + tlbentry(0xE8000000, SZ_64K, 0xE8000000, 1, AC_RWX | SA_IG) tlbtab_end - -#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) - /* - * For NAND booting the first TLB has to be reconfigured to full size - * and with caching disabled after running from RAM! - */ -#define TLB00 TLB0(CFG_BOOT_BASE_ADDR, SZ_256M) -#define TLB01 TLB1(CFG_BOOT_BASE_ADDR, 1) -#define TLB02 TLB2(AC_R|AC_W|AC_X|SA_G|SA_I) - - .globl reconfig_tlb0 -reconfig_tlb0: - sync - isync - addi r4,r0,0x0000 /* TLB entry #0 */ - lis r5,TLB00@h - ori r5,r5,TLB00@l - tlbwe r5,r4,0x0000 /* Save it out */ - lis r5,TLB01@h - ori r5,r5,TLB01@l - tlbwe r5,r4,0x0001 /* Save it out */ - lis r5,TLB02@h - ori r5,r5,TLB02@l - tlbwe r5,r4,0x0002 /* Save it out */ - sync - isync - blr -#endif