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Diffstat (limited to 'drivers/misc/fsl_law.c')
-rw-r--r--drivers/misc/fsl_law.c333
1 files changed, 0 insertions, 333 deletions
diff --git a/drivers/misc/fsl_law.c b/drivers/misc/fsl_law.c
deleted file mode 100644
index 223cd5d65..000000000
--- 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 ;
-}
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