/* * Copyright 2007 Freescale Semiconductor. * * (C) Copyright 2003 Motorola Inc. * Modified by Xianghua Xiao, X.Xiao@motorola.com * * (C) Copyright 2000 * Wolfgang Denk, DENX Software Engineering, wd@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 */ #include <common.h> #include <watchdog.h> #include <asm/processor.h> #include <ioports.h> #include <asm/io.h> #include <asm/mmu.h> #include <asm/fsl_law.h> #include "mp.h" DECLARE_GLOBAL_DATA_PTR; #ifdef CONFIG_MPC8536 extern void fsl_serdes_init(void); #endif #ifdef CONFIG_QE extern qe_iop_conf_t qe_iop_conf_tab[]; extern void qe_config_iopin(u8 port, u8 pin, int dir, int open_drain, int assign); extern void qe_init(uint qe_base); extern void qe_reset(void); static void config_qe_ioports(void) { u8 port, pin; int dir, open_drain, assign; int i; for (i = 0; qe_iop_conf_tab[i].assign != QE_IOP_TAB_END; i++) { port = qe_iop_conf_tab[i].port; pin = qe_iop_conf_tab[i].pin; dir = qe_iop_conf_tab[i].dir; open_drain = qe_iop_conf_tab[i].open_drain; assign = qe_iop_conf_tab[i].assign; qe_config_iopin(port, pin, dir, open_drain, assign); } } #endif #ifdef CONFIG_CPM2 void config_8560_ioports (volatile ccsr_cpm_t * cpm) { int portnum; for (portnum = 0; portnum < 4; portnum++) { uint pmsk = 0, ppar = 0, psor = 0, pdir = 0, podr = 0, pdat = 0; iop_conf_t *iopc = (iop_conf_t *) & iop_conf_tab[portnum][0]; iop_conf_t *eiopc = iopc + 32; uint msk = 1; /* * NOTE: * index 0 refers to pin 31, * index 31 refers to pin 0 */ while (iopc < eiopc) { if (iopc->conf) { pmsk |= msk; if (iopc->ppar) ppar |= msk; if (iopc->psor) psor |= msk; if (iopc->pdir) pdir |= msk; if (iopc->podr) podr |= msk; if (iopc->pdat) pdat |= msk; } msk <<= 1; iopc++; } if (pmsk != 0) { volatile ioport_t *iop = ioport_addr (cpm, portnum); uint tpmsk = ~pmsk; /* * the (somewhat confused) paragraph at the * bottom of page 35-5 warns that there might * be "unknown behaviour" when programming * PSORx and PDIRx, if PPARx = 1, so I * decided this meant I had to disable the * dedicated function first, and enable it * last. */ iop->ppar &= tpmsk; iop->psor = (iop->psor & tpmsk) | psor; iop->podr = (iop->podr & tpmsk) | podr; iop->pdat = (iop->pdat & tpmsk) | pdat; iop->pdir = (iop->pdir & tpmsk) | pdir; iop->ppar |= ppar; } } } #endif /* We run cpu_init_early_f in AS = 1 */ void cpu_init_early_f(void) { /* Pointer is writable since we allocated a register for it */ gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET); /* Clear initial global data */ memset ((void *) gd, 0, sizeof (gd_t)); set_tlb(0, CONFIG_SYS_CCSRBAR, CONFIG_SYS_CCSRBAR_PHYS, MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, 1, 0, BOOKE_PAGESZ_4K, 0); /* set up CCSR if we want it moved */ #if (CONFIG_SYS_CCSRBAR_DEFAULT != CONFIG_SYS_CCSRBAR_PHYS) { u32 temp; volatile u32 *ccsr_virt = (volatile u32 *)(CONFIG_SYS_CCSRBAR + 0x1000); set_tlb(0, (u32)ccsr_virt, CONFIG_SYS_CCSRBAR_DEFAULT, MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, 1, 1, BOOKE_PAGESZ_4K, 0); temp = in_be32(ccsr_virt); out_be32(ccsr_virt, CONFIG_SYS_CCSRBAR_PHYS >> 12); temp = in_be32((volatile u32 *)CONFIG_SYS_CCSRBAR); } #endif init_laws(); invalidate_tlb(0); init_tlbs(); } /* * Breathe some life into the CPU... * * Set up the memory map * initialize a bunch of registers */ void cpu_init_f (void) { volatile ccsr_lbc_t *memctl = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR); extern void m8560_cpm_reset (void); #ifdef CONFIG_MPC8548 ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR); uint svr = get_svr(); /* * CPU2 errata workaround: A core hang possible while executing * a msync instruction and a snoopable transaction from an I/O * master tagged to make quick forward progress is present. * Fixed in silicon rev 2.1. */ if ((SVR_MAJ(svr) == 1) || ((SVR_MAJ(svr) == 2 && SVR_MIN(svr) == 0x0))) out_be32(&ecm->eebpcr, in_be32(&ecm->eebpcr) | (1 << 16)); #endif disable_tlb(14); disable_tlb(15); #ifdef CONFIG_CPM2 config_8560_ioports((ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR); #endif /* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary * addresses - these have to be modified later when FLASH size * has been determined */ #if defined(CONFIG_SYS_OR0_REMAP) memctl->or0 = CONFIG_SYS_OR0_REMAP; #endif #if defined(CONFIG_SYS_OR1_REMAP) memctl->or1 = CONFIG_SYS_OR1_REMAP; #endif /* now restrict to preliminary range */ /* if cs1 is already set via debugger, leave cs0/cs1 alone */ if (! memctl->br1 & 1) { #if defined(CONFIG_SYS_BR0_PRELIM) && defined(CONFIG_SYS_OR0_PRELIM) memctl->br0 = CONFIG_SYS_BR0_PRELIM; memctl->or0 = CONFIG_SYS_OR0_PRELIM; #endif #if defined(CONFIG_SYS_BR1_PRELIM) && defined(CONFIG_SYS_OR1_PRELIM) memctl->or1 = CONFIG_SYS_OR1_PRELIM; memctl->br1 = CONFIG_SYS_BR1_PRELIM; #endif } #if defined(CONFIG_SYS_BR2_PRELIM) && defined(CONFIG_SYS_OR2_PRELIM) memctl->or2 = CONFIG_SYS_OR2_PRELIM; memctl->br2 = CONFIG_SYS_BR2_PRELIM; #endif #if defined(CONFIG_SYS_BR3_PRELIM) && defined(CONFIG_SYS_OR3_PRELIM) memctl->or3 = CONFIG_SYS_OR3_PRELIM; memctl->br3 = CONFIG_SYS_BR3_PRELIM; #endif #if defined(CONFIG_SYS_BR4_PRELIM) && defined(CONFIG_SYS_OR4_PRELIM) memctl->or4 = CONFIG_SYS_OR4_PRELIM; memctl->br4 = CONFIG_SYS_BR4_PRELIM; #endif #if defined(CONFIG_SYS_BR5_PRELIM) && defined(CONFIG_SYS_OR5_PRELIM) memctl->or5 = CONFIG_SYS_OR5_PRELIM; memctl->br5 = CONFIG_SYS_BR5_PRELIM; #endif #if defined(CONFIG_SYS_BR6_PRELIM) && defined(CONFIG_SYS_OR6_PRELIM) memctl->or6 = CONFIG_SYS_OR6_PRELIM; memctl->br6 = CONFIG_SYS_BR6_PRELIM; #endif #if defined(CONFIG_SYS_BR7_PRELIM) && defined(CONFIG_SYS_OR7_PRELIM) memctl->or7 = CONFIG_SYS_OR7_PRELIM; memctl->br7 = CONFIG_SYS_BR7_PRELIM; #endif #if defined(CONFIG_CPM2) m8560_cpm_reset(); #endif #ifdef CONFIG_QE /* Config QE ioports */ config_qe_ioports(); #endif #if defined(CONFIG_MPC8536) fsl_serdes_init(); #endif } /* * Initialize L2 as cache. * * The newer 8548, etc, parts have twice as much cache, but * use the same bit-encoding as the older 8555, etc, parts. * */ int cpu_init_r(void) { puts ("L2: "); #if defined(CONFIG_L2_CACHE) volatile ccsr_l2cache_t *l2cache = (void *)CONFIG_SYS_MPC85xx_L2_ADDR; volatile uint cache_ctl; uint svr, ver; uint l2srbar; u32 l2siz_field; svr = get_svr(); ver = SVR_SOC_VER(svr); asm("msync;isync"); cache_ctl = l2cache->l2ctl; l2siz_field = (cache_ctl >> 28) & 0x3; switch (l2siz_field) { case 0x0: printf(" unknown size (0x%08x)\n", cache_ctl); return -1; break; case 0x1: if (ver == SVR_8540 || ver == SVR_8560 || ver == SVR_8541 || ver == SVR_8541_E || ver == SVR_8555 || ver == SVR_8555_E) { puts("128 KB "); /* set L2E=1, L2I=1, & L2BLKSZ=1 (128 Kbyte) */ cache_ctl = 0xc4000000; } else { puts("256 KB "); cache_ctl = 0xc0000000; /* set L2E=1, L2I=1, & L2SRAM=0 */ } break; case 0x2: if (ver == SVR_8540 || ver == SVR_8560 || ver == SVR_8541 || ver == SVR_8541_E || ver == SVR_8555 || ver == SVR_8555_E) { puts("256 KB "); /* set L2E=1, L2I=1, & L2BLKSZ=2 (256 Kbyte) */ cache_ctl = 0xc8000000; } else { puts ("512 KB "); /* set L2E=1, L2I=1, & L2SRAM=0 */ cache_ctl = 0xc0000000; } break; case 0x3: puts("1024 KB "); /* set L2E=1, L2I=1, & L2SRAM=0 */ cache_ctl = 0xc0000000; break; } if (l2cache->l2ctl & 0x80000000) { puts("already enabled"); l2srbar = l2cache->l2srbar0; #ifdef CONFIG_SYS_INIT_L2_ADDR if (l2cache->l2ctl & 0x00010000 && l2srbar >= CONFIG_SYS_FLASH_BASE) { l2srbar = CONFIG_SYS_INIT_L2_ADDR; l2cache->l2srbar0 = l2srbar; printf("moving to 0x%08x", CONFIG_SYS_INIT_L2_ADDR); } #endif /* CONFIG_SYS_INIT_L2_ADDR */ puts("\n"); } else { asm("msync;isync"); l2cache->l2ctl = cache_ctl; /* invalidate & enable */ asm("msync;isync"); puts("enabled\n"); } #else puts("disabled\n"); #endif #ifdef CONFIG_QE uint qe_base = CONFIG_SYS_IMMR + 0x00080000; /* QE immr base */ qe_init(qe_base); qe_reset(); #endif #if defined(CONFIG_MP) setup_mp(); #endif return 0; }