diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/misc/Makefile | 1 | ||||
-rw-r--r-- | drivers/misc/fsl_law.c | 333 |
2 files changed, 0 insertions, 334 deletions
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index cdec88b..1f035e6 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -27,7 +27,6 @@ LIB := $(obj)libmisc.o COBJS-$(CONFIG_ALI152X) += ali512x.o COBJS-$(CONFIG_DS4510) += ds4510.o -COBJS-$(CONFIG_FSL_LAW) += fsl_law.o COBJS-$(CONFIG_GPIO_LED) += gpio_led.o COBJS-$(CONFIG_FSL_MC9SDZ60) += mc9sdz60.o COBJS-$(CONFIG_NS87308) += ns87308.o diff --git a/drivers/misc/fsl_law.c b/drivers/misc/fsl_law.c deleted file mode 100644 index 223cd5d..0000000 --- a/drivers/misc/fsl_law.c +++ /dev/null @@ -1,333 +0,0 @@ -/* - * Copyright 2008-2011 Freescale Semiconductor, Inc. - * - * (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 <linux/compiler.h> -#include <asm/fsl_law.h> -#include <asm/io.h> - -DECLARE_GLOBAL_DATA_PTR; - -#define FSL_HW_NUM_LAWS CONFIG_SYS_FSL_NUM_LAWS - -#ifdef CONFIG_FSL_CORENET -#define LAW_BASE (CONFIG_SYS_FSL_CORENET_CCM_ADDR) -#define LAWAR_ADDR(x) (&((ccsr_local_t *)LAW_BASE)->law[x].lawar) -#define LAWBARH_ADDR(x) (&((ccsr_local_t *)LAW_BASE)->law[x].lawbarh) -#define LAWBARL_ADDR(x) (&((ccsr_local_t *)LAW_BASE)->law[x].lawbarl) -#define LAWBAR_SHIFT 0 -#else -#define LAW_BASE (CONFIG_SYS_IMMR + 0xc08) -#define LAWAR_ADDR(x) ((u32 *)LAW_BASE + 8 * x + 2) -#define LAWBAR_ADDR(x) ((u32 *)LAW_BASE + 8 * x) -#define LAWBAR_SHIFT 12 -#endif - - -static inline phys_addr_t get_law_base_addr(int idx) -{ -#ifdef CONFIG_FSL_CORENET - return (phys_addr_t) - ((u64)in_be32(LAWBARH_ADDR(idx)) << 32) | - in_be32(LAWBARL_ADDR(idx)); -#else - return (phys_addr_t)in_be32(LAWBAR_ADDR(idx)) << LAWBAR_SHIFT; -#endif -} - -static inline void set_law_base_addr(int idx, phys_addr_t addr) -{ -#ifdef CONFIG_FSL_CORENET - out_be32(LAWBARL_ADDR(idx), addr & 0xffffffff); - out_be32(LAWBARH_ADDR(idx), (u64)addr >> 32); -#else - out_be32(LAWBAR_ADDR(idx), addr >> LAWBAR_SHIFT); -#endif -} - -void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id) -{ - gd->used_laws |= (1 << idx); - - out_be32(LAWAR_ADDR(idx), 0); - set_law_base_addr(idx, addr); - out_be32(LAWAR_ADDR(idx), LAW_EN | ((u32)id << 20) | (u32)sz); - - /* Read back so that we sync the writes */ - in_be32(LAWAR_ADDR(idx)); -} - -void disable_law(u8 idx) -{ - gd->used_laws &= ~(1 << idx); - - out_be32(LAWAR_ADDR(idx), 0); - set_law_base_addr(idx, 0); - - /* Read back so that we sync the writes */ - in_be32(LAWAR_ADDR(idx)); - - return; -} - -#ifndef CONFIG_NAND_SPL -static int get_law_entry(u8 i, struct law_entry *e) -{ - u32 lawar; - - lawar = in_be32(LAWAR_ADDR(i)); - - if (!(lawar & LAW_EN)) - return 0; - - e->addr = get_law_base_addr(i); - e->size = lawar & 0x3f; - e->trgt_id = (lawar >> 20) & 0xff; - - return 1; -} -#endif - -int set_next_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id) -{ - u32 idx = ffz(gd->used_laws); - - if (idx >= FSL_HW_NUM_LAWS) - return -1; - - set_law(idx, addr, sz, id); - - return idx; -} - -#ifndef CONFIG_NAND_SPL -int set_last_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id) -{ - u32 idx; - - /* we have no LAWs free */ - if (gd->used_laws == -1) - return -1; - - /* grab the last free law */ - idx = __ilog2(~(gd->used_laws)); - - if (idx >= FSL_HW_NUM_LAWS) - return -1; - - set_law(idx, addr, sz, id); - - return idx; -} - -struct law_entry find_law(phys_addr_t addr) -{ - struct law_entry entry; - int i; - - entry.index = -1; - entry.addr = 0; - entry.size = 0; - entry.trgt_id = 0; - - for (i = 0; i < FSL_HW_NUM_LAWS; i++) { - u64 upper; - - if (!get_law_entry(i, &entry)) - continue; - - upper = entry.addr + (2ull << entry.size); - if ((addr >= entry.addr) && (addr < upper)) { - entry.index = i; - break; - } - } - - return entry; -} - -void print_laws(void) -{ - int i; - u32 lawar; - - printf("\nLocal Access Window Configuration\n"); - for (i = 0; i < FSL_HW_NUM_LAWS; i++) { - lawar = in_be32(LAWAR_ADDR(i)); -#ifdef CONFIG_FSL_CORENET - printf("LAWBARH%02d: 0x%08x LAWBARL%02d: 0x%08x", - i, in_be32(LAWBARH_ADDR(i)), - i, in_be32(LAWBARL_ADDR(i))); -#else - printf("LAWBAR%02d: 0x%08x", i, in_be32(LAWBAR_ADDR(i))); -#endif - printf(" LAWAR%02d: 0x%08x\n", i, lawar); - printf("\t(EN: %d TGT: 0x%02x SIZE: ", - (lawar & LAW_EN) ? 1 : 0, (lawar >> 20) & 0xff); - print_size(lawar_size(lawar), ")\n"); - } - - return; -} - -/* use up to 2 LAWs for DDR, used the last available LAWs */ -int set_ddr_laws(u64 start, u64 sz, enum law_trgt_if id) -{ - u64 start_align, law_sz; - int law_sz_enc; - - if (start == 0) - start_align = 1ull << (LAW_SIZE_32G + 1); - else - start_align = 1ull << (ffs64(start) - 1); - law_sz = min(start_align, sz); - law_sz_enc = __ilog2_u64(law_sz) - 1; - - if (set_last_law(start, law_sz_enc, id) < 0) - return -1; - - /* recalculate size based on what was actually covered by the law */ - law_sz = 1ull << __ilog2_u64(law_sz); - - /* do we still have anything to map */ - sz = sz - law_sz; - if (sz) { - start += law_sz; - - start_align = 1ull << (ffs64(start) - 1); - law_sz = min(start_align, sz); - law_sz_enc = __ilog2_u64(law_sz) - 1; - - if (set_last_law(start, law_sz_enc, id) < 0) - return -1; - } else { - return 0; - } - - /* do we still have anything to map */ - sz = sz - law_sz; - if (sz) - return 1; - - return 0; -} -#endif - -void init_laws(void) -{ - int i; - -#if FSL_HW_NUM_LAWS < 32 - gd->used_laws = ~((1 << FSL_HW_NUM_LAWS) - 1); -#elif FSL_HW_NUM_LAWS == 32 - gd->used_laws = 0; -#else -#error FSL_HW_NUM_LAWS can not be greater than 32 w/o code changes -#endif - - /* - * Any LAWs that were set up before we booted assume they are meant to - * be around and mark them used. - */ - for (i = 0; i < FSL_HW_NUM_LAWS; i++) { - u32 lawar = in_be32(LAWAR_ADDR(i)); - - if (lawar & LAW_EN) - gd->used_laws |= (1 << i); - } - -#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) - /* - * in NAND boot we've already parsed the law_table and setup those LAWs - * so don't do it again. - */ - return; -#endif - - for (i = 0; i < num_law_entries; i++) { - if (law_table[i].index == -1) - set_next_law(law_table[i].addr, law_table[i].size, - law_table[i].trgt_id); - else - set_law(law_table[i].index, law_table[i].addr, - law_table[i].size, law_table[i].trgt_id); - } - -#ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE - /* check RCW to get which port is used for boot */ - ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; - u32 bootloc = in_be32(&gur->rcwsr[6]); - /* - * in SRIO or PCIE boot we need to set specail LAWs for - * SRIO or PCIE interfaces. - */ - switch ((bootloc & FSL_CORENET_RCWSR6_BOOT_LOC) >> 23) { - case 0x0: /* boot from PCIE1 */ - set_next_law(CONFIG_SYS_SRIO_PCIE_BOOT_SLAVE_ADDR_PHYS, - LAW_SIZE_1M, - LAW_TRGT_IF_PCIE_1); - set_next_law(CONFIG_SYS_SRIO_PCIE_BOOT_UCODE_ENV_ADDR_PHYS, - LAW_SIZE_1M, - LAW_TRGT_IF_PCIE_1); - break; - case 0x1: /* boot from PCIE2 */ - set_next_law(CONFIG_SYS_SRIO_PCIE_BOOT_SLAVE_ADDR_PHYS, - LAW_SIZE_1M, - LAW_TRGT_IF_PCIE_2); - set_next_law(CONFIG_SYS_SRIO_PCIE_BOOT_UCODE_ENV_ADDR_PHYS, - LAW_SIZE_1M, - LAW_TRGT_IF_PCIE_2); - break; - case 0x2: /* boot from PCIE3 */ - set_next_law(CONFIG_SYS_SRIO_PCIE_BOOT_SLAVE_ADDR_PHYS, - LAW_SIZE_1M, - LAW_TRGT_IF_PCIE_3); - set_next_law(CONFIG_SYS_SRIO_PCIE_BOOT_UCODE_ENV_ADDR_PHYS, - LAW_SIZE_1M, - LAW_TRGT_IF_PCIE_3); - break; - case 0x8: /* boot from SRIO1 */ - set_next_law(CONFIG_SYS_SRIO_PCIE_BOOT_SLAVE_ADDR_PHYS, - LAW_SIZE_1M, - LAW_TRGT_IF_RIO_1); - set_next_law(CONFIG_SYS_SRIO_PCIE_BOOT_UCODE_ENV_ADDR_PHYS, - LAW_SIZE_1M, - LAW_TRGT_IF_RIO_1); - break; - case 0x9: /* boot from SRIO2 */ - set_next_law(CONFIG_SYS_SRIO_PCIE_BOOT_SLAVE_ADDR_PHYS, - LAW_SIZE_1M, - LAW_TRGT_IF_RIO_2); - set_next_law(CONFIG_SYS_SRIO_PCIE_BOOT_UCODE_ENV_ADDR_PHYS, - LAW_SIZE_1M, - LAW_TRGT_IF_RIO_2); - break; - default: - break; - } -#endif - - return ; -} |