Re: [U-Boot] [PATCH v2] mx27ads: add support for iMX27ADS board from Freescale

ping

On 9/9/09, Alan Carvalho de Assis acassis@gmail.com wrote:

This patch adds support to iMX27ADS development board. This board has 128MB RAM, 32MB NOR Flash and 128MB NAND Flash. Currently only booting from NOR is supported.

Signed-off-by: Alan Carvalho de Assis acassis@gmail.com

MAINTAINERS | 3 + MAKEALL | 1 + Makefile | 3 + board/freescale/mx27ads/Makefile | 51 ++++++++ board/freescale/mx27ads/config.mk | 1 + board/freescale/mx27ads/lowlevel_init.S | 128 +++++++++++++++++++ board/freescale/mx27ads/mx27ads.c | 93 ++++++++++++++ board/freescale/mx27ads/u-boot.lds | 56 +++++++++ include/configs/mx27ads.h | 202 +++++++++++++++++++++++++++++++ 9 files changed, 538 insertions(+), 0 deletions(-) create mode 100644 board/freescale/mx27ads/Makefile create mode 100644 board/freescale/mx27ads/config.mk create mode 100644 board/freescale/mx27ads/lowlevel_init.S create mode 100644 board/freescale/mx27ads/mx27ads.c create mode 100644 board/freescale/mx27ads/u-boot.lds create mode 100644 include/configs/mx27ads.h

diff --git a/MAINTAINERS b/MAINTAINERS index e9db278..5b25188 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -550,6 +550,9 @@ Thomas Elste info@elste.org

modnet50 ARM720T (NET+50)

+Alan Carvalho de Assis acassis@gmail.com

• mx27ads i.MX27

Fabio Estevam Fabio.Estevam@freescale.com

mx31pdk i.MX31 diff --git a/MAKEALL b/MAKEALL index f0ed8ea..8411eef 100755 --- a/MAKEALL +++ b/MAKEALL @@ -520,6 +520,7 @@ LIST_ARM9=" \ cp926ejs \ cp946es \ cp966 \

• mx27ads \ imx27lite \ lpd7a400 \ mv88f6281gtw_ge \

diff --git a/Makefile b/Makefile index 0449a5b..6fa4b28 100644 --- a/Makefile +++ b/Makefile @@ -2961,6 +2961,9 @@ davinci_dm365evm_config : unconfig imx27lite_config: unconfig @$(MKCONFIG) $(@:_config=) arm arm926ejs imx27lite logicpd mx27

+mx27ads_config : unconfig

• @$(MKCONFIG) $(@:_config=) arm arm926ejs mx27ads freescale mx27

lpd7a400_config \ lpd7a404_config: unconfig @$(MKCONFIG) $(@:_config=) arm lh7a40x lpd7a40x diff --git a/board/freescale/mx27ads/Makefile b/board/freescale/mx27ads/Makefile new file mode 100644 index 0000000..d142a9e --- /dev/null +++ b/board/freescale/mx27ads/Makefile @@ -0,0 +1,51 @@ +# +# (C) Copyright 2000-2004 +# 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 $(TOPDIR)/config.mk

+LIB = $(obj)lib$(BOARD).a

+COBJS := mx27ads.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)

• $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)

+clean:

• rm -f $(SOBJS) $(OBJS)

+distclean: clean

• rm -f $(LIB) core *.bak $(obj).depend

+#########################################################################

+include $(SRCTREE)/rules.mk

+sinclude $(obj).depend

+#########################################################################

diff --git a/board/freescale/mx27ads/config.mk b/board/freescale/mx27ads/config.mk new file mode 100644 index 0000000..a2e7768 --- /dev/null +++ b/board/freescale/mx27ads/config.mk @@ -0,0 +1 @@ +TEXT_BASE = 0xA7F00000 diff --git a/board/freescale/mx27ads/lowlevel_init.S b/board/freescale/mx27ads/lowlevel_init.S new file mode 100644 index 0000000..a4e1191 --- /dev/null +++ b/board/freescale/mx27ads/lowlevel_init.S @@ -0,0 +1,128 @@ +/*

• • Copyright (C) 2008, Guennadi Liakhovetski lg@denx.de
• • 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
• */

+/*

• • For clock initialization, see chapter 3 of the "MCIMX27 Multimedia
• • Applications Processor Reference Manual, Rev. 0.2".
• */

+#include <config.h> +#include <asm/macro.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/asm-offsets.h>

+.macro sdram_init

• /*

• * DDR on CSD0
  

• */
  

• write32 0xD8001010 0x00000008
• write32 0x10027828 0x55555555
• write32 0x10027830 0x55555555
• write32 0x10027834 0x55555555
• write32 0x10027838 0x00005005
• write32 0x1002783C 0x15555555
• write32 0xD8001010 0x00000004
• write32 0xD8001004 0x006ac73a
• write32 0xD8001000 0x92100000
• write32 0xA0000F00 0x00000000
• write32 0xD8001000 0xA2100000
• write32 0xA0000F00 0x00000000
• write32 0xA0000F00 0x00000000
• write32 0xA0000F00 0x00000000
• write32 0xA0000F00 0x00000000
• write32 0xD8001000 0xA2200000
• write32 0xA0000F00 0x00000000
• write32 0xA0000F00 0x00000000
• write32 0xA0000F00 0x00000000
• write32 0xA0000F00 0x00000000
• write32 0xD8001000 0xb2100000
• ldr r0, =0xA0000033
• mov r1, #0xda
• strb r1, [r0]
• ldr r0, =0xA1000000
• mov r1, #0xff
• strb r1, [r0]
• write32 0xD8001000 0x82226080

+.endm

+.globl lowlevel_init +lowlevel_init:

• mov r10, lr
• /* ahb lite ip interface */
• write32 AIPI1_PSR0 0x20040304
• write32 AIPI1_PSR1 0xDFFBFCFB
• write32 AIPI2_PSR0 0x00000000
• write32 AIPI2_PSR1 0xFFFFFFFF
• /* disable mpll/spll */
• ldr r0, =CSCR
• ldr r1, [r0]
• bic r1, r1, #0x03
• str r1, [r0]
• /*

• * pll clock initialization - see section 3.4.3 of the i.MX27 manual
  

• *
  

• * FIXME: Using the 399*2 MHz values from table 3-8 doens't work
  

• *        with 1.2 V core voltage! Find out if this is
  

• *        documented somewhere.
  

• */
  

• write32 MPCTL0 0x1EF15D5 /* MPLL = 199.5*2 MHz */
• write32 SPCTL0 0x043A1C09 /* SPLL = FIXME (needs review) */
• /*

• * ARM clock = (399 MHz / 2) / (ARM divider = 1) = 200 MHz
  

• * AHB clock = (399 MHz / 3) / (AHB divider = 2) = 66.5 MHz
  

• * System clock (HCLK) = 133 MHz
  

• */
  

• write32 CSCR, (0x33F08107 | CSCR_MPLL_RESTART | CSCR_SPLL_RESTART)
• /* add some delay here */
• mov r1, #0x1000

+1: subs r1, r1, #0x1

• bne 1b
• /* clock gating enable */
• write32 0x10027818 0x00050f08
• /* peripheral clock divider */
• write32 PCDR0 0x120470C3 /* FIXME */
• write32 PCDR1 0x03030303 /* PERDIV1=08 @133 MHz */

• 			/* PERDIV1=04 @266 MHz              *
  

• 			 * /
  

• /* Configure PCCR0 and PCCR1*/
• write32 PCCR0 0xFFFFFFFF
• write32 PCCR1 0xFFFFFFFC
• /* skip sdram initialization if we run from ram */
• cmp pc, #0xa0000000
• bls 1f
• cmp pc, #0xc0000000
• bhi 1f
• mov pc,r10

+1:

• sdram_init
• mov pc,r10

diff --git a/board/freescale/mx27ads/mx27ads.c b/board/freescale/mx27ads/mx27ads.c new file mode 100644 index 0000000..4def923 --- /dev/null +++ b/board/freescale/mx27ads/mx27ads.c @@ -0,0 +1,93 @@ +/*

• • Copyright (C) 2007 Sascha Hauer, Pengutronix
• • Copyright (C) 2008,2009 Eric Jarrige jorasse@users.sourceforge.net
• • Copyright (C) 2009 Ilya Yanok yanok@emcraft.com
• • Copyright (C) 2009 Alan Carvalho de Assis alan@maxtrack.com.br
• • 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/macro.h> +#include <asm/arch/imx-regs.h>

+# define __REG(x) (*((volatile u32 *)(x)))

+#define IMX_CS4_BASE 0xD4000000 +#define CS4U __REG(IMX_WEIM_BASE + 0x40) /* Chip Select 4 Upper Register */ +#define CS4L __REG(IMX_WEIM_BASE + 0x44) /* Chip Select 4 Lower Register */ +#define CS4A __REG(IMX_WEIM_BASE + 0x48) /* Chip Select 4 Addition Register */

+DECLARE_GLOBAL_DATA_PTR;

+int board_init(void) +{

• struct gpio_regs *regs = (struct gpio_regs *)IMX_GPIO_BASE;
• gd->bd->bi_arch_number = MACH_TYPE_MX27ADS;
• gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;

+#ifdef CONFIG_MXC_UART

• mx27_uart_init_pins();

+#endif +#ifdef CONFIG_FEC_MXC

• mx27_fec_init_pins();
• imx_gpio_mode((GPIO_PORTC | GPIO_OUT | GPIO_PUEN | GPIO_GPIO | 31));
• writel(readl(&regs->port[PORTC].dr) | (1 << 31),

• 		&regs->port[PORTC].dr);
  

• /* Configure CPLD on CS4 */
• CS4U = 0x0000DCF6;
• CS4L = 0x444A4541;
• CS4A = 0x44443302;
• /* Select FEC data through data path */
• writew(0x0020, IMX_CS4_BASE + 0x10);
• /* Enable CPLD FEC data path */
• writew(0x0010, IMX_CS4_BASE + 0x14);

+#endif +#ifdef CONFIG_MXC_MMC

• mx27_sd2_init_pins();

+#endif

• return 0;

+}

+int dram_init(void) +{

+#if CONFIG_NR_DRAM_BANKS > 0

• gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
• gd->bd->bi_dram[0].size = get_ram_size((volatile void *)PHYS_SDRAM_1,

• 	PHYS_SDRAM_1_SIZE);
  

+#endif +#if CONFIG_NR_DRAM_BANKS > 1

• gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
• gd->bd->bi_dram[1].size = get_ram_size((volatile void *)PHYS_SDRAM_2,

• 	PHYS_SDRAM_2_SIZE);
  

+#endif

• return 0;

+}

+int checkboard(void) +{

• printf("Freescale i.MX27ADS\n");
• return 0;

+} diff --git a/board/freescale/mx27ads/u-boot.lds b/board/freescale/mx27ads/u-boot.lds new file mode 100644 index 0000000..f66f20e --- /dev/null +++ b/board/freescale/mx27ads/u-boot.lds @@ -0,0 +1,56 @@ +/*

• • (C) Copyright 2007
• • 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
• */

+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) +SECTIONS +{

• . = 0x00000000;
• . = ALIGN(4);
• .text :
• {

• cpu/arm926ejs/start.o	(.text)
  

• *(.text)
  

• }
• . = ALIGN(4);
• .rodata : { *(.rodata) }
• . = ALIGN(4);
• .data : { *(.data) }
• . = ALIGN(4);
• .got : { *(.got) }
• __u_boot_cmd_start = .;
• .u_boot_cmd : { *(.u_boot_cmd) }
• __u_boot_cmd_end = .;
• . = ALIGN(4);
• __bss_start = .;
• .bss : { *(.bss) }
• _end = .;

+}

diff --git a/include/configs/mx27ads.h b/include/configs/mx27ads.h new file mode 100644 index 0000000..3360d76 --- /dev/null +++ b/include/configs/mx27ads.h @@ -0,0 +1,202 @@ +/*

• • Copyright (C) 2009 Ilya Yanok yanok@emcraft.com
• • 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
• */

+#ifndef __CONFIG_H +#define __CONFIG_H

+/*===================*/ +/* SoC Configuration */ +/*===================*/ +#define CONFIG_ARM926EJS /* arm926ejs CPU core */ +#define CONFIG_MX27 +#define CONFIG_IMX27ADS +#define CONFIG_MX27_CLK32 32768 /* OSC32K frequency */ +#define CONFIG_SYS_HZ 1000

+#define CONFIG_DISPLAY_CPUINFO

+#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */ +#define CONFIG_SETUP_MEMORY_TAGS 1 +#define CONFIG_INITRD_TAG 1

+/*=============*/ +/* Memory Info */ +/*=============*/ +/* malloc() len */ +#define CONFIG_SYS_MALLOC_LEN (0x10000 + 256*1024) +/* reserved for initial data */ +#define CONFIG_SYS_GBL_DATA_SIZE 128 +/* memtest start address */ +#define CONFIG_SYS_MEMTEST_START 0xA0000000 +#define CONFIG_SYS_MEMTEST_END 0xA1000000 /* 16MB RAM test */ +#define CONFIG_NR_DRAM_BANKS 1 /* we have 1 bank of DRAM */ +#define CONFIG_STACKSIZE (256*1024) /* regular stack */ +#define PHYS_SDRAM_1 0xA0000000 /* DDR Start */ +#define PHYS_SDRAM_1_SIZE 0x08000000 /* DDR size 128MB */

+/*====================*/ +/* Serial Driver info */ +/*====================*/ +#define CONFIG_MXC_UART +#define CONFIG_SYS_MX27_UART1 +#define CONFIG_CONS_INDEX 1 /* use UART0 for console */ +#define CONFIG_BAUDRATE 115200 /* Default baud rate */ +#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }

+/*=====================*/ +/* Flash & Environment */ +/*=====================*/

+#define CONFIG_ENV_IS_IN_FLASH +#define CONFIG_FLASH_CFI_DRIVER +#define CONFIG_FLASH_CFI_MTD +#define CONFIG_SYS_FLASH_CFI

+/* Use hardware sector protection */ +#define CONFIG_SYS_FLASH_PROTECTION 1 +#define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of flash banks */ +#define CONFIG_SYS_FLASH_SECT_SZ 0x2000 /* 8KB sect size Intel Flash */ +/* end of flash */ +#define CONFIG_ENV_OFFSET (PHYS_FLASH_SIZE - 0x20000) +/* CS2 Base address */ +#define PHYS_FLASH_1 0xc0000000 +/* Flash Base for U-Boot */ +#define CONFIG_SYS_FLASH_BASE PHYS_FLASH_1 +/* Flash size 32MB */ +#define PHYS_FLASH_SIZE 0x2000000 +#define CONFIG_SYS_MAX_FLASH_SECT (PHYS_FLASH_SIZE / \

• CONFIG_SYS_FLASH_SECT_SZ)
  

+#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE +#define CONFIG_SYS_MONITOR_LEN 0x40000 /* Reserve 256KiB */ +#define CONFIG_ENV_SECT_SIZE 0x10000 /* Env sector Size */ +#define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE +/* Address and size of Redundant Environment Sector */ +#define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE) +#define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE

+/*

• • Ethernet
• */

+#define CONFIG_FEC_MXC +#define CONFIG_FEC_MXC_PHYADDR 0x1f +#define CONFIG_MII +#define CONFIG_NET_MULTI

+/*#define CONFIG_DRIVER_CS8900 1 +#define CS8900_BASE 0xD4020300 +#define CS8900_BUS16 1*/ +#define CONFIG_ETHADDR 02:80:ad:20:31:e8

+/*

• • NAND
• */

+#define CONFIG_NAND_MXC +#define CONFIG_MXC_NAND_REGS_BASE 0xd8000000 +#define CONFIG_SYS_MAX_NAND_DEVICE 1 +#define CONFIG_SYS_NAND_BASE 0xd8000000 +#define CONFIG_JFFS2_NAND +#define CONFIG_MXC_NAND_HWECC

+/*

• • SD/MMC
• */

+#define CONFIG_MMC +#define CONFIG_GENERIC_MMC +#define CONFIG_MXC_MMC +#define CONFIG_MXC_MCI_REGS_BASE 0x10014000 +#define CONFIG_DOS_PARTITION

+/*

• • MTD partitions
• */

+#define CONFIG_MTD_DEVICE +#define CONFIG_CMD_MTDPARTS +#define MTDIDS_DEFAULT "nor0=physmap-flash.0" +#define MTDPARTS_DEFAULT \

• "mtdparts=physmap-flash.0:256k(U-Boot),3968k(kernel),28416k(user),64k(env1),64k(env2)"

+/*==============================*/ +/* U-Boot general configuration */ +/*==============================*/ +#define CONFIG_BOOTFILE "uImage" /* Boot file name */ +#define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */ +#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */ +/* Print buffer sz */ +#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \

• sizeof(CONFIG_SYS_PROMPT) + 16)
  

+#define CONFIG_SYS_MAXARGS 16 /* max number of command args */ +/* Boot Argument Buffer Size */ +#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE +#define CONFIG_CMDLINE_EDITING +#define CONFIG_SYS_LONGHELP

+/*=================*/ +/* U-Boot commands */ +/*=================*/ +#include <config_cmd_default.h> +#define CONFIG_CMD_ASKENV +#define CONFIG_CMD_BDI +#define CONFIG_CMD_DHCP +#define CONFIG_CMD_DIAG +#define CONFIG_CMD_FAT +#define CONFIG_CMD_JFFS2 +#define CONFIG_CMD_MII +#define CONFIG_CMD_MMC +#define CONFIG_CMD_NAND +#define CONFIG_CMD_NET +#define CONFIG_CMD_NFS +#define CONFIG_CMD_PING

+#define CONFIG_BOOTDELAY 5

+#define CONFIG_LOADADDR 0xa0800000 /* loadaddr env var */ +#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR

+#define xstr(s) str(s) +#define str(s) #s

+#define CONFIG_EXTRA_ENV_SETTINGS \

• "netdev=eth0\0" \
• "nfsargs=setenv bootargs root=/dev/nfs rw " \

• "nfsroot=${serverip}:${rootpath}\0"			\
  

• "ramargs=setenv bootargs root=/dev/ram rw\0" \
• "addip=setenv bootargs ${bootargs} " \

• "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}"	\
  

• ":${hostname}:${netdev}:off panic=1\0"			\
  

• "addtty=setenv bootargs ${bootargs}" \

• " console=ttymxc0,${baudrate}\0"			\
  

• "addmtd=setenv bootargs ${bootargs} ${mtdparts}\0" \
• "addmisc=setenv bootargs ${bootargs}\0" \
• "u-boot=imx27/u-boot.bin\0" \
• "kernel_addr_r=a0800000\0" \
• "hostname=imx27\0" \
• "bootfile=imx27/uImage\0" \
• "rootpath=/opt/eldk-4.2-arm/arm\0" \
• "net_nfs=tftp ${kernel_addr_r} ${bootfile};" \

• "run nfsargs addip addtty addmtd addmisc;"		\
  

• "bootm\0"						\
  

• "bootcmd=run net_nfs\0" \
• "load=tftp ${loadaddr} ${u-boot}\0" \
• "update=protect off " xstr(CONFIG_SYS_MONITOR_BASE) \

• " +${filesize};era " xstr(CONFIG_SYS_MONITOR_BASE)	\
  

• " +${filesize};cp.b ${fileaddr} "			\
  

• xstr(CONFIG_SYS_MONITOR_BASE) " ${filesize}\0"		\
  

• "upd=run load update\0" \

+#endif /* __CONFIG_H */

1.6.0.4