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https://github.com/brain-hackers/u-boot-brain
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![Liu Gang](/assets/img/avatar_default.png)
For the powerpc processors with SRIO interface, boot location can be configured from SRIO1 or SRIO2 by RCW. The processor booting from SRIO can do without flash for u-boot image. The image can be fetched from another processor's memory space by SRIO link connected between them. The processor boots from SRIO is slave, the processor boots from normal flash memory space and can help slave to boot from its memory space is master. They are different environments and requirements: master: 1. NOR flash for its own u-boot image, ucode and ENV space. 2. Slave's u-boot image in master NOR flash. 3. Normally boot from local NOR flash. 4. Configure SRIO switch system if needed. slave: 1. Just has EEPROM for RCW. No flash for u-boot image, ucode and ENV. 2. Boot location should be set to SRIO1 or SRIO2 by RCW. 3. RCW should configure the SerDes, SRIO interfaces correctly. 4. Slave must be powered on after master's boot. 5. Must define CONFIG_SYS_QE_FMAN_FW_IN_REMOTE because of no ucode locally. For the slave module, need to finish these processes: 1. Set the boot location to SRIO1 or SRIO2 by RCW. 2. Set a specific TLB entry for the boot process. 3. Set a LAW entry with the TargetID SRIO1 or SRIO2 for the boot. 4. Slave's u-boot image should be generated specifically by make xxxx_SRIOBOOT_SLAVE_config. This will set SYS_TEXT_BASE=0xFFF80000 and other configurations. Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
153 lines
5.1 KiB
C
153 lines
5.1 KiB
C
/*
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* Copyright 2008-2011 Freescale Semiconductor, Inc.
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*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/mmu.h>
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struct fsl_e_tlb_entry tlb_table[] = {
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/* TLB 0 - for temp stack in cache */
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SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR,
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CONFIG_SYS_INIT_RAM_ADDR_PHYS,
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MAS3_SW|MAS3_SR, 0,
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0, 0, BOOKE_PAGESZ_4K, 0),
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SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 4 * 1024,
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CONFIG_SYS_INIT_RAM_ADDR_PHYS + 4 * 1024,
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MAS3_SW|MAS3_SR, 0,
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0, 0, BOOKE_PAGESZ_4K, 0),
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SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 8 * 1024,
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CONFIG_SYS_INIT_RAM_ADDR_PHYS + 8 * 1024,
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MAS3_SW|MAS3_SR, 0,
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0, 0, BOOKE_PAGESZ_4K, 0),
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SET_TLB_ENTRY(0, CONFIG_SYS_INIT_RAM_ADDR + 12 * 1024,
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CONFIG_SYS_INIT_RAM_ADDR_PHYS + 12 * 1024,
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MAS3_SW|MAS3_SR, 0,
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0, 0, BOOKE_PAGESZ_4K, 0),
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#ifdef CPLD_BASE
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SET_TLB_ENTRY(0, CPLD_BASE, CPLD_BASE_PHYS,
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MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 0, BOOKE_PAGESZ_4K, 0),
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#endif
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#ifdef PIXIS_BASE
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SET_TLB_ENTRY(0, PIXIS_BASE, PIXIS_BASE_PHYS,
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MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 0, BOOKE_PAGESZ_4K, 0),
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#endif
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/* TLB 1 */
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/* *I*** - Covers boot page */
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#if defined(CONFIG_SYS_RAMBOOT) && defined(CONFIG_SYS_INIT_L3_ADDR)
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/*
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* *I*G - L3SRAM. When L3 is used as 1M SRAM, the address of the
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* SRAM is at 0xfff00000, it covered the 0xfffff000.
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*/
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SET_TLB_ENTRY(1, CONFIG_SYS_INIT_L3_ADDR, CONFIG_SYS_INIT_L3_ADDR,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 0, BOOKE_PAGESZ_1M, 1),
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#elif defined(CONFIG_SRIOBOOT_SLAVE)
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/*
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* SRIOBOOT-SLAVE. When slave boot, the address of the
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* space is at 0xfff00000, it covered the 0xfffff000.
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*/
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SET_TLB_ENTRY(1, CONFIG_SYS_SRIOBOOT_SLAVE_ADDR,
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CONFIG_SYS_SRIOBOOT_SLAVE_ADDR_PHYS,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_W|MAS2_G,
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0, 0, BOOKE_PAGESZ_1M, 1),
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#else
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SET_TLB_ENTRY(1, 0xfffff000, 0xfffff000,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 0, BOOKE_PAGESZ_4K, 1),
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#endif
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/* *I*G* - CCSRBAR */
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SET_TLB_ENTRY(1, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS,
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MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 1, BOOKE_PAGESZ_16M, 1),
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/* *I*G* - Flash, localbus */
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/* This will be changed to *I*G* after relocation to RAM. */
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SET_TLB_ENTRY(1, CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_BASE_PHYS,
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MAS3_SX|MAS3_SR, MAS2_W|MAS2_G,
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0, 2, BOOKE_PAGESZ_256M, 1),
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/* *I*G* - PCI */
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SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT, CONFIG_SYS_PCIE1_MEM_PHYS,
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MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 3, BOOKE_PAGESZ_1G, 1),
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/* *I*G* - PCI */
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SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT + 0x40000000,
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CONFIG_SYS_PCIE1_MEM_PHYS + 0x40000000,
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MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 4, BOOKE_PAGESZ_256M, 1),
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SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_MEM_VIRT + 0x50000000,
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CONFIG_SYS_PCIE1_MEM_PHYS + 0x50000000,
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MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 5, BOOKE_PAGESZ_256M, 1),
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/* *I*G* - PCI I/O */
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SET_TLB_ENTRY(1, CONFIG_SYS_PCIE1_IO_VIRT, CONFIG_SYS_PCIE1_IO_PHYS,
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MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 6, BOOKE_PAGESZ_256K, 1),
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/* Bman/Qman */
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#ifdef CONFIG_SYS_BMAN_MEM_PHYS
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SET_TLB_ENTRY(1, CONFIG_SYS_BMAN_MEM_BASE, CONFIG_SYS_BMAN_MEM_PHYS,
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MAS3_SW|MAS3_SR, 0,
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0, 9, BOOKE_PAGESZ_1M, 1),
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SET_TLB_ENTRY(1, CONFIG_SYS_BMAN_MEM_BASE + 0x00100000,
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CONFIG_SYS_BMAN_MEM_PHYS + 0x00100000,
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MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 10, BOOKE_PAGESZ_1M, 1),
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#endif
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#ifdef CONFIG_SYS_QMAN_MEM_PHYS
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SET_TLB_ENTRY(1, CONFIG_SYS_QMAN_MEM_BASE, CONFIG_SYS_QMAN_MEM_PHYS,
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MAS3_SW|MAS3_SR, 0,
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0, 11, BOOKE_PAGESZ_1M, 1),
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SET_TLB_ENTRY(1, CONFIG_SYS_QMAN_MEM_BASE + 0x00100000,
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CONFIG_SYS_QMAN_MEM_PHYS + 0x00100000,
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MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 12, BOOKE_PAGESZ_1M, 1),
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#endif
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#ifdef CONFIG_SYS_DCSRBAR_PHYS
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SET_TLB_ENTRY(1, CONFIG_SYS_DCSRBAR, CONFIG_SYS_DCSRBAR_PHYS,
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MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 13, BOOKE_PAGESZ_4M, 1),
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#endif
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#ifdef CONFIG_SYS_NAND_BASE
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/*
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* *I*G - NAND
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* entry 14 and 15 has been used hard coded, they will be disabled
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* in cpu_init_f, so we use entry 16 for nand.
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*/
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SET_TLB_ENTRY(1, CONFIG_SYS_NAND_BASE, CONFIG_SYS_NAND_BASE_PHYS,
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MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
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0, 16, BOOKE_PAGESZ_1M, 1),
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#endif
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};
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int num_tlb_entries = ARRAY_SIZE(tlb_table);
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