+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
*
* (C) Copyright 2008-2010 Freescale Semiconductor, Inc.
*
* Copyright (C) 2011, Stefano Babic <sbabic@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 <init.h>
#include <asm/io.h>
-#include <asm/errno.h>
+#include <env.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/iomux-mx35.h>
#include <asm/gpio.h>
#include <asm/arch/sys_proto.h>
#include <netdev.h>
+#include <fdt_support.h>
+#include <mtd_node.h>
+#include <jffs2/load_kernel.h>
#ifndef CONFIG_BOARD_EARLY_INIT_F
#error "CONFIG_BOARD_EARLY_INIT_F must be set for this board"
#define CCM_CCMR_CONFIG 0x003F4208
#define ESDCTL_DDR2_CONFIG 0x007FFC3F
-#define ESDCTL_0x92220000 0x92220000
-#define ESDCTL_0xA2220000 0xA2220000
-#define ESDCTL_0xB2220000 0xB2220000
-#define ESDCTL_0x82228080 0x82228080
-#define ESDCTL_DDR2_EMR2 0x04000000
-#define ESDCTL_DDR2_EMR3 0x06000000
-#define ESDCTL_PRECHARGE 0x00000400
-#define ESDCTL_DDR2_EN_DLL 0x02000400
-#define ESDCTL_DDR2_RESET_DLL 0x00000333
-#define ESDCTL_DDR2_MR 0x00000233
-#define ESDCTL_DDR2_OCD_DEFAULT 0x02000780
-#define ESDCTL_DELAY_LINE5 0x00F49F00
static inline void dram_wait(unsigned int count)
{
return 0;
}
-static void board_setup_sdram_bank(u32 start_address)
-
-{
- struct esdc_regs *esdc = (struct esdc_regs *)ESDCTL_BASE_ADDR;
- u32 *cfg_reg, *ctl_reg;
- u32 val;
-
- switch (start_address) {
- case CSD0_BASE_ADDR:
- cfg_reg = &esdc->esdcfg0;
- ctl_reg = &esdc->esdctl0;
- break;
- case CSD1_BASE_ADDR:
- cfg_reg = &esdc->esdcfg1;
- ctl_reg = &esdc->esdctl1;
- break;
- default:
- return;
- }
-
- /* Initialize MISC register for DDR2 */
- val = ESDC_MISC_RST | ESDC_MISC_MDDR_EN | ESDC_MISC_MDDR_DL_RST |
- ESDC_MISC_DDR_EN | ESDC_MISC_DDR2_EN;
- writel(val, &esdc->esdmisc);
- val &= ~(ESDC_MISC_RST | ESDC_MISC_MDDR_DL_RST);
- writel(val, &esdc->esdmisc);
-
- /*
- * according to DDR2 specs, wait a while before
- * the PRECHARGE_ALL command
- */
- dram_wait(0x20000);
-
- /* Load DDR2 config and timing */
- writel(ESDCTL_DDR2_CONFIG, cfg_reg);
-
- /* Precharge ALL */
- writel(ESDCTL_0x92220000,
- ctl_reg);
- writel(0xda, start_address + ESDCTL_PRECHARGE);
-
- /* Load mode */
- writel(ESDCTL_0xB2220000,
- ctl_reg);
- writeb(0xda, start_address + ESDCTL_DDR2_EMR2); /* EMRS2 */
- writeb(0xda, start_address + ESDCTL_DDR2_EMR3); /* EMRS3 */
- writeb(0xda, start_address + ESDCTL_DDR2_EN_DLL); /* Enable DLL */
- writeb(0xda, start_address + ESDCTL_DDR2_RESET_DLL); /* Reset DLL */
-
- /* Precharge ALL */
- writel(ESDCTL_0x92220000,
- ctl_reg);
- writel(0xda, start_address + ESDCTL_PRECHARGE);
-
- /* Set mode auto refresh : at least two refresh are required */
- writel(ESDCTL_0xA2220000,
- ctl_reg);
- writel(0xda, start_address);
- writel(0xda, start_address);
-
- writel(ESDCTL_0xB2220000,
- ctl_reg);
- writeb(0xda, start_address + ESDCTL_DDR2_MR);
- writeb(0xda, start_address + ESDCTL_DDR2_OCD_DEFAULT);
-
- /* OCD mode exit */
- writeb(0xda, start_address + ESDCTL_DDR2_EN_DLL); /* Enable DLL */
-
- /* Set normal mode */
- writel(ESDCTL_0x82228080,
- ctl_reg);
-
- dram_wait(0x20000);
-
- /* Do not set delay lines, only for MDDR */
-}
-
static void board_setup_sdram(void)
{
struct esdc_regs *esdc = (struct esdc_regs *)ESDCTL_BASE_ADDR;
writel(0x2000, &esdc->esdctl0);
writel(0x2000, &esdc->esdctl1);
- board_setup_sdram_bank(CSD0_BASE_ADDR);
+
+ mx3_setup_sdram_bank(CSD0_BASE_ADDR, ESDCTL_DDR2_CONFIG,
+ 13, 10, 2, 0x8080);
}
static void setup_iomux_uart3(void)
MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
+ /* GPIO used to power off ethernet */
+ MX35_PAD_STXFS4__GPIO2_31,
};
/* setup pins for FEC */
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+ /* Enable power for ethernet */
+ gpio_direction_output(63, 0);
+
+ udelay(2000);
+
return 0;
}
return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8;
}
+
+/*
+ * called prior to booting kernel or by 'fdt boardsetup' command
+ *
+ */
+int ft_board_setup(void *blob, bd_t *bd)
+{
+ static const struct node_info nodes[] = {
+ { "physmap-flash.0", MTD_DEV_TYPE_NOR, }, /* NOR flash */
+ { "mxc_nand", MTD_DEV_TYPE_NAND, }, /* NAND flash */
+ };
+
+ if (env_get("fdt_noauto")) {
+ puts(" Skiping ft_board_setup (fdt_noauto defined)\n");
+ return 0;
+ }
+
+ fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
+
+ return 0;
+}
projects / oweals / u-boot.git / blobdiff