* Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
* on behalf of DENX Software Engineering GmbH
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
mxs_adjust_memory_params(dram_vals);
+ /*
+ * HW_DRAM_CTL27, HW_DRAM_CTL28 and HW_DRAM_CTL35 are not initialized as
+ * per FSL bootlets code.
+ *
+ * mx23 Reference Manual marks HW_DRAM_CTL27 and HW_DRAM_CTL28 as
+ * "reserved".
+ * HW_DRAM_CTL8 is setup as the last element.
+ * So skip the initialization of these HW_DRAM_CTL registers.
+ */
for (i = 0; i < ARRAY_SIZE(dram_vals); i++) {
if (i == 8 || i == 27 || i == 28 || i == 35)
continue;
struct mxs_power_regs *power_regs =
(struct mxs_power_regs *)MXS_POWER_BASE;
- writel((0x12 << POWER_VDDMEMCTRL_TRG_OFFSET) |
- POWER_VDDMEMCTRL_ENABLE_ILIMIT |
- POWER_VDDMEMCTRL_ENABLE_LINREG |
- POWER_VDDMEMCTRL_PULLDOWN_ACTIVE,
- &power_regs->hw_power_vddmemctrl);
-
- early_delay(10000);
+ clrbits_le32(&power_regs->hw_power_vddmemctrl,
+ POWER_VDDMEMCTRL_ENABLE_ILIMIT);
- writel((0x12 << POWER_VDDMEMCTRL_TRG_OFFSET) |
- POWER_VDDMEMCTRL_ENABLE_LINREG,
- &power_regs->hw_power_vddmemctrl);
}
static void mx23_mem_init(void)
early_delay(20000);
/* Adjust EMI port priority. */
- clrsetbits_le32(0x80020000, 0x1f << 16, 0x8);
+ clrsetbits_le32(0x80020000, 0x1f << 16, 0x2);
early_delay(20000);
setbits_le32(MXS_DRAM_BASE + 0x40, 1 << 19);