mirror of
https://github.com/brain-hackers/u-boot-brain
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0a85a9e705
When boot from SRIO, slave's ENV can be stored in master's memory space, then slave can fetch the ENV through SRIO interface. NOTE: Because the slave can not erase, write master's NOR flash by SRIO interface, so it can not modify the ENV parameters stored in master's NOR flash using "saveenv" or other commands. Master needs to: 1. Put the slave's ENV into it's own memory space. 2. Set an inbound SRIO window covered slave's ENV stored in master's memory space. Slave needs to: 1. Set a specific TLB entry in order to fetch ucode and ENV from master. 2. Set a LAW entry with the TargetID SRIO1 or SRIO2 for ucode and ENV. Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
172 lines
5.9 KiB
C
172 lines
5.9 KiB
C
/*
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* Copyright 2011 Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* 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 <config.h>
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#include <asm/fsl_law.h>
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#include <asm/fsl_serdes.h>
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#include <asm/fsl_srio.h>
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#define SRIO_PORT_ACCEPT_ALL 0x10000001
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#define SRIO_IB_ATMU_AR 0x80f55000
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#if defined(CONFIG_FSL_CORENET)
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#define _DEVDISR_SRIO1 FSL_CORENET_DEVDISR_SRIO1
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#define _DEVDISR_SRIO2 FSL_CORENET_DEVDISR_SRIO2
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#define _DEVDISR_RMU FSL_CORENET_DEVDISR_RMU
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#define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR
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#elif defined(CONFIG_MPC85xx)
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#define _DEVDISR_SRIO1 MPC85xx_DEVDISR_SRIO
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#define _DEVDISR_SRIO2 MPC85xx_DEVDISR_SRIO
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#define _DEVDISR_RMU MPC85xx_DEVDISR_RMSG
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#define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR
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#elif defined(CONFIG_MPC86xx)
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#define _DEVDISR_SRIO1 MPC86xx_DEVDISR_SRIO
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#define _DEVDISR_SRIO2 MPC86xx_DEVDISR_SRIO
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#define _DEVDISR_RMU MPC86xx_DEVDISR_RMSG
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#define CONFIG_SYS_MPC8xxx_GUTS_ADDR \
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(&((immap_t *)CONFIG_SYS_IMMR)->im_gur)
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#else
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#error "No defines for DEVDISR_SRIO"
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#endif
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void srio_init(void)
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{
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ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC8xxx_GUTS_ADDR;
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int srio1_used = 0, srio2_used = 0;
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if (is_serdes_configured(SRIO1)) {
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set_next_law(CONFIG_SYS_SRIO1_MEM_PHYS,
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law_size_bits(CONFIG_SYS_SRIO1_MEM_SIZE),
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LAW_TRGT_IF_RIO_1);
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srio1_used = 1;
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printf("SRIO1: enabled\n");
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} else {
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printf("SRIO1: disabled\n");
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}
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#ifdef CONFIG_SRIO2
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if (is_serdes_configured(SRIO2)) {
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set_next_law(CONFIG_SYS_SRIO2_MEM_PHYS,
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law_size_bits(CONFIG_SYS_SRIO2_MEM_SIZE),
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LAW_TRGT_IF_RIO_2);
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srio2_used = 1;
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printf("SRIO2: enabled\n");
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} else {
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printf("SRIO2: disabled\n");
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}
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#endif
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#ifdef CONFIG_FSL_CORENET
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/* On FSL_CORENET devices we can disable individual ports */
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if (!srio1_used)
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setbits_be32(&gur->devdisr, FSL_CORENET_DEVDISR_SRIO1);
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if (!srio2_used)
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setbits_be32(&gur->devdisr, FSL_CORENET_DEVDISR_SRIO2);
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#endif
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/* neither port is used - disable everything */
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if (!srio1_used && !srio2_used) {
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setbits_be32(&gur->devdisr, _DEVDISR_SRIO1);
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setbits_be32(&gur->devdisr, _DEVDISR_SRIO2);
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setbits_be32(&gur->devdisr, _DEVDISR_RMU);
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}
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}
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#ifdef CONFIG_SRIOBOOT_MASTER
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void srio_boot_master(void)
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{
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struct ccsr_rio *srio = (void *)CONFIG_SYS_FSL_SRIO_ADDR;
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/* set port accept-all */
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out_be32((void *)&srio->impl.port[CONFIG_SRIOBOOT_MASTER_PORT].ptaacr,
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SRIO_PORT_ACCEPT_ALL);
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debug("SRIOBOOT - MASTER: Master port [ %d ] for srio boot.\n",
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CONFIG_SRIOBOOT_MASTER_PORT);
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/* configure inbound window for slave's u-boot image */
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debug("SRIOBOOT - MASTER: Inbound window for slave's image; "
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"Local = 0x%llx, Srio = 0x%llx, Size = 0x%x\n",
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(u64)CONFIG_SRIOBOOT_SLAVE_IMAGE_LAW_PHYS1,
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(u64)CONFIG_SRIOBOOT_SLAVE_IMAGE_SRIO_PHYS1,
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CONFIG_SRIOBOOT_SLAVE_IMAGE_SIZE);
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out_be32((void *)&srio->atmu
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.port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[0].riwtar,
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CONFIG_SRIOBOOT_SLAVE_IMAGE_LAW_PHYS1 >> 12);
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out_be32((void *)&srio->atmu
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.port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[0].riwbar,
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CONFIG_SRIOBOOT_SLAVE_IMAGE_SRIO_PHYS1 >> 12);
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out_be32((void *)&srio->atmu
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.port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[0].riwar,
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SRIO_IB_ATMU_AR
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| atmu_size_mask(CONFIG_SRIOBOOT_SLAVE_IMAGE_SIZE));
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/* configure inbound window for slave's u-boot image */
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debug("SRIOBOOT - MASTER: Inbound window for slave's image; "
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"Local = 0x%llx, Srio = 0x%llx, Size = 0x%x\n",
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(u64)CONFIG_SRIOBOOT_SLAVE_IMAGE_LAW_PHYS2,
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(u64)CONFIG_SRIOBOOT_SLAVE_IMAGE_SRIO_PHYS2,
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CONFIG_SRIOBOOT_SLAVE_IMAGE_SIZE);
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out_be32((void *)&srio->atmu
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.port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[1].riwtar,
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CONFIG_SRIOBOOT_SLAVE_IMAGE_LAW_PHYS2 >> 12);
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out_be32((void *)&srio->atmu
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.port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[1].riwbar,
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CONFIG_SRIOBOOT_SLAVE_IMAGE_SRIO_PHYS2 >> 12);
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out_be32((void *)&srio->atmu
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.port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[1].riwar,
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SRIO_IB_ATMU_AR
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| atmu_size_mask(CONFIG_SRIOBOOT_SLAVE_IMAGE_SIZE));
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/* configure inbound window for slave's ucode */
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debug("SRIOBOOT - MASTER: Inbound window for slave's ucode; "
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"Local = 0x%llx, Srio = 0x%llx, Size = 0x%x\n",
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(u64)CONFIG_SRIOBOOT_SLAVE_UCODE_LAW_PHYS,
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(u64)CONFIG_SRIOBOOT_SLAVE_UCODE_SRIO_PHYS,
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CONFIG_SRIOBOOT_SLAVE_UCODE_SIZE);
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out_be32((void *)&srio->atmu
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.port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[2].riwtar,
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CONFIG_SRIOBOOT_SLAVE_UCODE_LAW_PHYS >> 12);
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out_be32((void *)&srio->atmu
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.port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[2].riwbar,
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CONFIG_SRIOBOOT_SLAVE_UCODE_SRIO_PHYS >> 12);
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out_be32((void *)&srio->atmu
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.port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[2].riwar,
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SRIO_IB_ATMU_AR
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| atmu_size_mask(CONFIG_SRIOBOOT_SLAVE_UCODE_SIZE));
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/* configure inbound window for slave's ENV */
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debug("SRIOBOOT - MASTER: Inbound window for slave's ENV; "
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"Local = 0x%llx, Siro = 0x%llx, Size = 0x%x\n",
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CONFIG_SRIOBOOT_SLAVE_ENV_LAW_PHYS,
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CONFIG_SRIOBOOT_SLAVE_ENV_SRIO_PHYS,
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CONFIG_SRIOBOOT_SLAVE_ENV_SIZE);
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out_be32((void *)&srio->atmu
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.port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[3].riwtar,
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CONFIG_SRIOBOOT_SLAVE_ENV_LAW_PHYS >> 12);
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out_be32((void *)&srio->atmu
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.port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[3].riwbar,
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CONFIG_SRIOBOOT_SLAVE_ENV_SRIO_PHYS >> 12);
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out_be32((void *)&srio->atmu
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.port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[3].riwar,
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SRIO_IB_ATMU_AR
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| atmu_size_mask(CONFIG_SRIOBOOT_SLAVE_ENV_SIZE));
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}
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#endif
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