From 8d1f268204b07e172f3cb5cee0a3974d605b0b98 Mon Sep 17 00:00:00 2001 From: Peter Tyser Date: Mon, 12 Apr 2010 22:28:09 -0500 Subject: ppc: Move cpu/$CPU to arch/ppc/cpu/$CPU Signed-off-by: Peter Tyser --- cpu/mpc85xx/mp.c | 355 ------------------------------------------------------- 1 file changed, 355 deletions(-) delete mode 100644 cpu/mpc85xx/mp.c (limited to 'cpu/mpc85xx/mp.c') diff --git a/cpu/mpc85xx/mp.c b/cpu/mpc85xx/mp.c deleted file mode 100644 index 826bf32..0000000 --- a/cpu/mpc85xx/mp.c +++ /dev/null @@ -1,355 +0,0 @@ -/* - * Copyright 2008-2010 Freescale Semiconductor, Inc. - * - * 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 -#include -#include -#include -#include -#include -#include -#include "mp.h" - -DECLARE_GLOBAL_DATA_PTR; - -u32 get_my_id() -{ - return mfspr(SPRN_PIR); -} - -int cpu_reset(int nr) -{ - volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR); - out_be32(&pic->pir, 1 << nr); - /* the dummy read works around an errata on early 85xx MP PICs */ - (void)in_be32(&pic->pir); - out_be32(&pic->pir, 0x0); - - return 0; -} - -int cpu_status(int nr) -{ - u32 *table, id = get_my_id(); - - if (nr == id) { - table = (u32 *)get_spin_virt_addr(); - printf("table base @ 0x%p\n", table); - } else { - table = (u32 *)get_spin_virt_addr() + nr * NUM_BOOT_ENTRY; - printf("Running on cpu %d\n", id); - printf("\n"); - printf("table @ 0x%p\n", table); - printf(" addr - 0x%08x\n", table[BOOT_ENTRY_ADDR_LOWER]); - printf(" pir - 0x%08x\n", table[BOOT_ENTRY_PIR]); - printf(" r3 - 0x%08x\n", table[BOOT_ENTRY_R3_LOWER]); - printf(" r6 - 0x%08x\n", table[BOOT_ENTRY_R6_LOWER]); - } - - return 0; -} - -#ifdef CONFIG_FSL_CORENET -int cpu_disable(int nr) -{ - volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); - - setbits_be32(&gur->coredisrl, 1 << nr); - - return 0; -} -#else -int cpu_disable(int nr) -{ - volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); - - switch (nr) { - case 0: - setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_CPU0); - break; - case 1: - setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_CPU1); - break; - default: - printf("Invalid cpu number for disable %d\n", nr); - return 1; - } - - return 0; -} -#endif - -static u8 boot_entry_map[4] = { - 0, - BOOT_ENTRY_PIR, - BOOT_ENTRY_R3_LOWER, - BOOT_ENTRY_R6_LOWER, -}; - -int cpu_release(int nr, int argc, char *argv[]) -{ - u32 i, val, *table = (u32 *)get_spin_virt_addr() + nr * NUM_BOOT_ENTRY; - u64 boot_addr; - - if (nr == get_my_id()) { - printf("Invalid to release the boot core.\n\n"); - return 1; - } - - if (argc != 4) { - printf("Invalid number of arguments to release.\n\n"); - return 1; - } - - boot_addr = simple_strtoull(argv[0], NULL, 16); - - /* handle pir, r3, r6 */ - for (i = 1; i < 4; i++) { - if (argv[i][0] != '-') { - u8 entry = boot_entry_map[i]; - val = simple_strtoul(argv[i], NULL, 16); - table[entry] = val; - } - } - - table[BOOT_ENTRY_ADDR_UPPER] = (u32)(boot_addr >> 32); - - /* ensure all table updates complete before final address write */ - eieio(); - - table[BOOT_ENTRY_ADDR_LOWER] = (u32)(boot_addr & 0xffffffff); - - return 0; -} - -u32 determine_mp_bootpg(void) -{ - /* if we have 4G or more of memory, put the boot page at 4Gb-4k */ - if ((u64)gd->ram_size > 0xfffff000) - return (0xfffff000); - - return (gd->ram_size - 4096); -} - -ulong get_spin_phys_addr(void) -{ - extern ulong __secondary_start_page; - extern ulong __spin_table; - - return (determine_mp_bootpg() + - (ulong)&__spin_table - (ulong)&__secondary_start_page); -} - -ulong get_spin_virt_addr(void) -{ - extern ulong __secondary_start_page; - extern ulong __spin_table; - - return (CONFIG_BPTR_VIRT_ADDR + - (ulong)&__spin_table - (ulong)&__secondary_start_page); -} - -#ifdef CONFIG_FSL_CORENET -static void plat_mp_up(unsigned long bootpg) -{ - u32 up, cpu_up_mask, whoami; - u32 *table = (u32 *)get_spin_virt_addr(); - volatile ccsr_gur_t *gur; - volatile ccsr_local_t *ccm; - volatile ccsr_rcpm_t *rcpm; - volatile ccsr_pic_t *pic; - int timeout = 10; - u32 nr_cpus; - struct law_entry e; - - gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); - ccm = (void *)(CONFIG_SYS_FSL_CORENET_CCM_ADDR); - rcpm = (void *)(CONFIG_SYS_FSL_CORENET_RCPM_ADDR); - pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR); - - nr_cpus = ((in_be32(&pic->frr) >> 8) & 0xff) + 1; - - whoami = in_be32(&pic->whoami); - cpu_up_mask = 1 << whoami; - out_be32(&ccm->bstrl, bootpg); - - e = find_law(bootpg); - out_be32(&ccm->bstrar, LAW_EN | e.trgt_id << 20 | LAW_SIZE_4K); - - /* readback to sync write */ - in_be32(&ccm->bstrar); - - /* disable time base at the platform */ - out_be32(&rcpm->ctbenrl, cpu_up_mask); - - /* release the hounds */ - up = ((1 << nr_cpus) - 1); - out_be32(&gur->brrl, up); - - /* wait for everyone */ - while (timeout) { - int i; - for (i = 0; i < nr_cpus; i++) { - if (table[i * NUM_BOOT_ENTRY + BOOT_ENTRY_ADDR_LOWER]) - cpu_up_mask |= (1 << i); - }; - - if ((cpu_up_mask & up) == up) - break; - - udelay(100); - timeout--; - } - - if (timeout == 0) - printf("CPU up timeout. CPU up mask is %x should be %x\n", - cpu_up_mask, up); - - /* enable time base at the platform */ - out_be32(&rcpm->ctbenrl, 0); - mtspr(SPRN_TBWU, 0); - mtspr(SPRN_TBWL, 0); - out_be32(&rcpm->ctbenrl, (1 << nr_cpus) - 1); - -#ifdef CONFIG_MPC8xxx_DISABLE_BPTR - /* - * Disabling Boot Page Translation allows the memory region 0xfffff000 - * to 0xffffffff to be used normally. Leaving Boot Page Translation - * enabled remaps 0xfffff000 to SDRAM which makes that memory region - * unusable for normal operation but it does allow OSes to easily - * reset a processor core to put it back into U-Boot's spinloop. - */ - clrbits_be32(&ecm->bptr, 0x80000000); -#endif -} -#else -static void plat_mp_up(unsigned long bootpg) -{ - u32 up, cpu_up_mask, whoami; - u32 *table = (u32 *)get_spin_virt_addr(); - volatile u32 bpcr; - volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR); - volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); - volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR); - u32 devdisr; - int timeout = 10; - - whoami = in_be32(&pic->whoami); - out_be32(&ecm->bptr, 0x80000000 | (bootpg >> 12)); - - /* disable time base at the platform */ - devdisr = in_be32(&gur->devdisr); - if (whoami) - devdisr |= MPC85xx_DEVDISR_TB0; - else - devdisr |= MPC85xx_DEVDISR_TB1; - out_be32(&gur->devdisr, devdisr); - - /* release the hounds */ - up = ((1 << cpu_numcores()) - 1); - bpcr = in_be32(&ecm->eebpcr); - bpcr |= (up << 24); - out_be32(&ecm->eebpcr, bpcr); - asm("sync; isync; msync"); - - cpu_up_mask = 1 << whoami; - /* wait for everyone */ - while (timeout) { - int i; - for (i = 0; i < cpu_numcores(); i++) { - if (table[i * NUM_BOOT_ENTRY + BOOT_ENTRY_ADDR_LOWER]) - cpu_up_mask |= (1 << i); - }; - - if ((cpu_up_mask & up) == up) - break; - - udelay(100); - timeout--; - } - - if (timeout == 0) - printf("CPU up timeout. CPU up mask is %x should be %x\n", - cpu_up_mask, up); - - /* enable time base at the platform */ - if (whoami) - devdisr |= MPC85xx_DEVDISR_TB1; - else - devdisr |= MPC85xx_DEVDISR_TB0; - out_be32(&gur->devdisr, devdisr); - mtspr(SPRN_TBWU, 0); - mtspr(SPRN_TBWL, 0); - - devdisr &= ~(MPC85xx_DEVDISR_TB0 | MPC85xx_DEVDISR_TB1); - out_be32(&gur->devdisr, devdisr); - -#ifdef CONFIG_MPC8xxx_DISABLE_BPTR - /* - * Disabling Boot Page Translation allows the memory region 0xfffff000 - * to 0xffffffff to be used normally. Leaving Boot Page Translation - * enabled remaps 0xfffff000 to SDRAM which makes that memory region - * unusable for normal operation but it does allow OSes to easily - * reset a processor core to put it back into U-Boot's spinloop. - */ - clrbits_be32(&ecm->bptr, 0x80000000); -#endif -} -#endif - -void cpu_mp_lmb_reserve(struct lmb *lmb) -{ - u32 bootpg = determine_mp_bootpg(); - - lmb_reserve(lmb, bootpg, 4096); -} - -void setup_mp(void) -{ - extern ulong __secondary_start_page; - extern ulong __bootpg_addr; - ulong fixup = (ulong)&__secondary_start_page; - u32 bootpg = determine_mp_bootpg(); - - /* Store the bootpg's SDRAM address for use by secondary CPU cores */ - __bootpg_addr = bootpg; - - /* look for the tlb covering the reset page, there better be one */ - int i = find_tlb_idx((void *)CONFIG_BPTR_VIRT_ADDR, 1); - - /* we found a match */ - if (i != -1) { - /* map reset page to bootpg so we can copy code there */ - disable_tlb(i); - - set_tlb(1, CONFIG_BPTR_VIRT_ADDR, bootpg, /* tlb, epn, rpn */ - MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, /* perms, wimge */ - 0, i, BOOKE_PAGESZ_4K, 1); /* ts, esel, tsize, iprot */ - - memcpy((void *)CONFIG_BPTR_VIRT_ADDR, (void *)fixup, 4096); - - plat_mp_up(bootpg); - } else { - puts("WARNING: No reset page TLB. " - "Skipping secondary core setup\n"); - } -} -- cgit v1.1