this board is based on an i.MX25 from Freescale.
It consists of a SOM containing :
- NAND flash (internal or external boot supported and tested)
- mDDR (64MB tested)
- ethernet PHY connected in RMII mode (tested)
and a baseboard containing :
- a serial transceiver on UART1 (tested)
- a SDCard connector on eSDHC1 (tested but disabled until Benoît's fix
gets applied)
bootlog :
U-Boot 2012.10-rc1-00003-gdd12be5 (Sep 23 2012 - 13:53:21)
CPU: Freescale i.MX25 rev1.2 at 399 MHz
Reset cause: POR
DRAM: 64 MiB
NAND: 256 MiB
MMC:
In: serial
Out: serial
Err: serial
Net: FEC
Hit any key to stop autoboot: 0
Signed-off-by: Eric Bénard<e...@eukrea.com>
---
v2: rebased against 2012.10-rc1, disabled eSDHC until proper fix
from Benoît gets applied, updated bootlog.
MAINTAINERS | 2 +
board/eukrea/cpuimx25/Makefile | 44 +++++++
board/eukrea/cpuimx25/config.mk | 5 +
board/eukrea/cpuimx25/cpuimx25.c | 123 ++++++++++++++++++
board/eukrea/cpuimx25/imximage.cfg | 55 ++++++++
board/eukrea/cpuimx25/lowlevel_init.S | 113 ++++++++++++++++
boards.cfg | 2 +
include/configs/cpuimx25.h | 198 +++++++++++++++++++++++++++++
nand_spl/board/eukrea/cpuimx25/Makefile | 79 ++++++++++++
nand_spl/board/eukrea/cpuimx25/config.mk | 1 +
nand_spl/board/eukrea/cpuimx25/u-boot.lds | 83 ++++++++++++
11 files changed, 705 insertions(+), 0 deletions(-)
create mode 100644 board/eukrea/cpuimx25/Makefile
create mode 100644 board/eukrea/cpuimx25/config.mk
create mode 100644 board/eukrea/cpuimx25/cpuimx25.c
create mode 100644 board/eukrea/cpuimx25/imximage.cfg
create mode 100644 board/eukrea/cpuimx25/lowlevel_init.S
create mode 100644 include/configs/cpuimx25.h
create mode 100644 nand_spl/board/eukrea/cpuimx25/Makefile
create mode 100644 nand_spl/board/eukrea/cpuimx25/config.mk
create mode 100644 nand_spl/board/eukrea/cpuimx25/u-boot.lds
diff --git a/MAINTAINERS b/MAINTAINERS
index aa54fe1..94e759f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -606,6 +606,8 @@ Eric Benard<e...@eukrea.com>
cpuat91 ARM920T
cpu9260 ARM926EJS (AT91SAM9260 SoC)
cpu9G20 ARM926EJS (AT91SAM9G20 SoC)
+ cpuimx25 i.MX25
+ cpuimx25nand i.MX25
Ajay Bhargav<ajay.bhar...@einfochips.com>
diff --git a/board/eukrea/cpuimx25/Makefile b/board/eukrea/cpuimx25/Makefile
new file mode 100644
index 0000000..46131fd
--- /dev/null
+++ b/board/eukrea/cpuimx25/Makefile
@@ -0,0 +1,44 @@
+#
+# (C) Copyright 2009 DENX Software Engineering
+# Author: John Rigby<jcri...@gmail.com>
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(BOARD).o
+
+COBJS := cpuimx25.o
+SOBJS := lowlevel_init.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(LIB): $(obj).depend $(OBJS) $(SOBJS)
+ $(call cmd_link_o_target, $(OBJS) $(SOBJS))
+
+#########################################################################
+
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/eukrea/cpuimx25/config.mk b/board/eukrea/cpuimx25/config.mk
new file mode 100644
index 0000000..18b2883
--- /dev/null
+++ b/board/eukrea/cpuimx25/config.mk
@@ -0,0 +1,5 @@
+ifdef CONFIG_NAND_SPL
+CONFIG_SYS_TEXT_BASE = 0x810c0000
+else
+CONFIG_SYS_TEXT_BASE = 0x81200000
+endif
diff --git a/board/eukrea/cpuimx25/cpuimx25.c b/board/eukrea/cpuimx25/cpuimx25.c
new file mode 100644
index 0000000..72fa8a5
--- /dev/null
+++ b/board/eukrea/cpuimx25/cpuimx25.c
@@ -0,0 +1,123 @@
+/*
+ * (C) Copyright 2009 DENX Software Engineering
+ * (C) Copyright 2012 Eukrea Electromatique<www.eukrea.com>
+ * Eric Benard<e...@eukrea.com>
+ *
+ * Based on tx25.c:
+ * Author: John Rigby<jri...@gmail.com>
+ *
+ * Based on imx27lite.c:
+ * Copyright (C) 2008,2009 Eric Jarrige<jora...@users.sourceforge.net>
+ * Copyright (C) 2009 Ilya Yanok<ya...@emcraft.com>
+ * And:
+ * RedBoot tx25_misc.c Copyright (C) 2009 Red Hat
+ *
+ * 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/io.h>
+#include<asm/arch/imx-regs.h>
+#include<asm/arch/imx25-pinmux.h>
+#include<asm/gpio.h>
+#include<asm/arch/sys_proto.h>
+#include<mmc.h>
+#include<fsl_esdhc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_FSL_ESDHC
+struct fsl_esdhc_cfg esdhc_cfg[1] = {
+ {IMX_MMC_SDHC1_BASE},
+};
+#endif
+
+int board_init()
+{
+#ifdef CONFIG_MXC_UART
+ mx25_uart1_init_pins();
+#endif
+ /* board id for linux */
+ gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+ return 0;
+}
+
+int board_late_init(void)
+{
+#ifdef CONFIG_FEC_MXC
+ mx25_fec_init_pins();
+#endif
+ return 0;
+}
+
+int dram_init(void)
+{
+ /* dram_init must store complete ramsize in gd->ram_size */
+ gd->ram_size = get_ram_size((void *)PHYS_SDRAM_1,
+ PHYS_SDRAM_1_SIZE);
+ return 0;
+}
+
+void dram_init_banksize(void)
+{
+ gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+ gd->bd->bi_dram[0].size = get_ram_size((void *)PHYS_SDRAM_1,
+ PHYS_SDRAM_1_SIZE);
+}
+
+int checkboard(void)
+{
+ printf("Eukrea Electromatique CPUIMX25\n");
+ return 0;
+}
+
+#ifdef CONFIG_FSL_ESDHC
+int board_mmc_getcd(struct mmc *mmc)
+{
+ struct iomuxc_mux_ctl *muxctl;
+ struct iomuxc_pad_ctl *padctl;
+ struct gpio_regs *gpio2 = (struct gpio_regs *)IMX_GPIO2_BASE;
+ u32 val;
+
+ muxctl = (struct iomuxc_mux_ctl *)IMX_IOPADMUX_BASE;
+ padctl = (struct iomuxc_pad_ctl *)IMX_IOPADCTL_BASE;
+
+ writel(MX25_PIN_MUX_MODE(5),&muxctl->pad_de_b);
+
+ writel(0x0,&padctl->pad_de_b);
+
+ val = readl(&gpio2->gpio_dir)& ~(1<< 20);
+ writel(val,&gpio2->gpio_dir);
+ val = readl(&gpio2->gpio_dr)& (1<< 20);
+ return val ? 0 : 1;
+
+}
+
+int board_mmc_init(bd_t *bis)
+{
+ struct iomuxc_mux_ctl *muxctl;
+ struct iomuxc_pad_ctl *padctl;
+ u32 sdhc1_mux_mode = MX25_PIN_MUX_MODE(0) | MX25_PIN_MUX_SION;
+ muxctl = (struct iomuxc_mux_ctl *)IMX_IOPADMUX_BASE;
+ writel(sdhc1_mux_mode,&muxctl->pad_sd1_cmd);
+ writel(sdhc1_mux_mode,&muxctl->pad_sd1_clk);
+ writel(sdhc1_mux_mode,&muxctl->pad_sd1_data0);
+ writel(sdhc1_mux_mode,&muxctl->pad_sd1_data1);
+ writel(sdhc1_mux_mode,&muxctl->pad_sd1_data2);
+ writel(sdhc1_mux_mode,&muxctl->pad_sd1_data3);
+ return fsl_esdhc_initialize(bis,&esdhc_cfg[0]);
+}
+#endif
diff --git a/board/eukrea/cpuimx25/imximage.cfg
b/board/eukrea/cpuimx25/imximage.cfg
new file mode 100644
index 0000000..c0b7b20
--- /dev/null
+++ b/board/eukrea/cpuimx25/imximage.cfg
@@ -0,0 +1,55 @@
+#
+# (C) Copyright 2009
+# Stefano Babic DENX Software Engineering sba...@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.
+#
+# Refer docs/README.imxmage for more details about how-to configure
+# and create imximage boot image
+#
+# The syntax is taken as close as possible with the kwbimage
+
+# Boot Device : one of
+# nand, sd, spi
+
+BOOT_FROM nand
+
+# Device Configuration Data (DCD)
+#
+# Each entry must have the format:
+# Addr-type Address Value
+#
+# where:
+# Addr-type register length (1,2 or 4 bytes)
+# Address absolute address of the register
+# value value to be stored in the register
+
+# MDDR init
+DATA 4 0xb8001010 0x00000004
+DATA 4 0xb8001000 0x92100000
+DATA 1 0x80000400 0x12344321
+DATA 4 0xb8001000 0xa2100000
+DATA 4 0x80000000 0x12344321
+DATA 4 0x80000000 0x12344321
+DATA 4 0xb8001000 0xb2100000
+DATA 1 0x80000033 0xda
+DATA 1 0x81000000 0xff
+DATA 4 0xb8001000 0x82216080
+DATA 4 0xb8001004 0x00295729
+DATA 4 0x53f80008 0x20034000
+
+# Enable the clocks
+DATA 4 0x53f8000c 0x1fffffff
+DATA 4 0x53f80010 0xffffffff
+DATA 4 0x53f80014 0xfdfff
diff --git a/board/eukrea/cpuimx25/lowlevel_init.S
b/board/eukrea/cpuimx25/lowlevel_init.S
new file mode 100644
index 0000000..76e4e6f
--- /dev/null
+++ b/board/eukrea/cpuimx25/lowlevel_init.S
@@ -0,0 +1,113 @@
+/*
+ * (C) Copyright 2009 DENX Software Engineering
+ * (C) Copyright 2012 Eukrea Electromatique<www.eukrea.com>
+ * Eric Benard<e...@eukrea.com>
+ *
+ * Based on tx25 and zmx25:
+ * Author: John Rigby<jri...@gmail.com>
+ *
+ * Based on U-Boot and RedBoot sources for several different i.mx
+ * platforms.
+ *
+ * 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<asm/macro.h>
+#include<asm/arch/macro.h>
+#include<asm/arch/imx-regs.h>
+#include<generated/asm-offsets.h>
+
+.macro init_m3if
+ write32 0xb8003000, 0x1
+.endm
+
+.macro init_clocks
+ write32 0x53f80064, 0x00000000
+ write32 0x53f80008, 0x20034000
+
+ /*
+ * enable all implemented clocks in all three
+ * clock control registers
+ */
+ write32 0x53f8000c, 0x1fffffff
+ write32 0x53f80010, 0xffffffff
+ write32 0x53f80014, 0xfdfff
+.endm
