+// SPDX-License-Identifier: GPL-2.0+
/*
* 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 <asm/bitops.h>
#include <linux/compiler.h>
#include <asm/fsl_law.h>
#include <asm/io.h>
+#include <linux/log2.h>
DECLARE_GLOBAL_DATA_PTR;
void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
{
- gd->used_laws |= (1 << idx);
+ gd->arch.used_laws |= (1 << idx);
out_be32(LAWAR_ADDR(idx), 0);
set_law_base_addr(idx, addr);
void disable_law(u8 idx)
{
- gd->used_laws &= ~(1 << idx);
+ gd->arch.used_laws &= ~(1 << idx);
out_be32(LAWAR_ADDR(idx), 0);
set_law_base_addr(idx, 0);
return;
}
-#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SPL_BUILD)
+#if !defined(CONFIG_NAND_SPL) && \
+ (!defined(CONFIG_SPL_BUILD) || !defined(CONFIG_SPL_INIT_MINIMAL))
static int get_law_entry(u8 i, struct law_entry *e)
{
u32 lawar;
int set_next_law(phys_addr_t addr, enum law_size sz, enum law_trgt_if id)
{
- u32 idx = ffz(gd->used_laws);
+ u32 idx = ffz(gd->arch.used_laws);
if (idx >= FSL_HW_NUM_LAWS)
return -1;
return idx;
}
-#if !defined(CONFIG_NAND_SPL) && !defined(CONFIG_SPL_BUILD)
+#if !defined(CONFIG_NAND_SPL) && \
+ (!defined(CONFIG_SPL_BUILD) || !defined(CONFIG_SPL_INIT_MINIMAL))
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)
+ if (gd->arch.used_laws == -1)
return -1;
/* grab the last free law */
- idx = __ilog2(~(gd->used_laws));
+ idx = __ilog2(~(gd->arch.used_laws));
if (idx >= FSL_HW_NUM_LAWS)
return -1;
if (start == 0)
start_align = 1ull << (LAW_SIZE_32G + 1);
else
- start_align = 1ull << (ffs64(start) - 1);
+ start_align = 1ull << (__ffs64(start));
law_sz = min(start_align, sz);
law_sz_enc = __ilog2_u64(law_sz) - 1;
if (sz) {
start += law_sz;
- start_align = 1ull << (ffs64(start) - 1);
+ start_align = 1ull << (__ffs64(start));
law_sz = min(start_align, sz);
law_sz_enc = __ilog2_u64(law_sz) - 1;
}
#endif /* not SPL */
+void disable_non_ddr_laws(void)
+{
+ int i;
+ int id;
+ for (i = 0; i < FSL_HW_NUM_LAWS; i++) {
+ u32 lawar = in_be32(LAWAR_ADDR(i));
+
+ if (lawar & LAW_EN) {
+ id = (lawar & ~LAW_EN) >> 20;
+ switch (id) {
+ case LAW_TRGT_IF_DDR_1:
+ case LAW_TRGT_IF_DDR_2:
+ case LAW_TRGT_IF_DDR_3:
+ case LAW_TRGT_IF_DDR_4:
+ case LAW_TRGT_IF_DDR_INTRLV:
+ case LAW_TRGT_IF_DDR_INTLV_34:
+ case LAW_TRGT_IF_DDR_INTLV_123:
+ case LAW_TRGT_IF_DDR_INTLV_1234:
+ continue;
+ default:
+ disable_law(i);
+ }
+ }
+ }
+}
+
void init_laws(void)
{
int i;
#if FSL_HW_NUM_LAWS < 32
- gd->used_laws = ~((1 << FSL_HW_NUM_LAWS) - 1);
+ gd->arch.used_laws = ~((1 << FSL_HW_NUM_LAWS) - 1);
#elif FSL_HW_NUM_LAWS == 32
- gd->used_laws = 0;
+ gd->arch.used_laws = 0;
#else
#error FSL_HW_NUM_LAWS can not be greater than 32 w/o code changes
#endif
+#if defined(CONFIG_NXP_ESBC) && defined(CONFIG_E500) && \
+ !defined(CONFIG_E500MC)
+ /* ISBC (Boot ROM) creates a LAW 0 entry for non PBL platforms,
+ * which is not disabled before transferring the control to uboot.
+ * Disable the LAW 0 entry here.
+ */
+ disable_law(0);
+#endif
+
+#if !defined(CONFIG_NXP_ESBC)
+ /*
+ * if any non DDR LAWs has been created earlier, remove them before
+ * LAW table is parsed.
+ */
+ disable_non_ddr_laws();
+#endif
+
/*
* Any LAWs that were set up before we booted assume they are meant to
* be around and mark them used.
u32 lawar = in_be32(LAWAR_ADDR(i));
if (lawar & LAW_EN)
- gd->used_laws |= (1 << i);
+ gd->arch.used_laws |= (1 << i);
}
-#if (defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL)) || \
- (defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD))
- /*
- * in SPL 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,
projects / oweals / u-boot.git / blobdiff