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(®s->port[PORTC].dr) | (1 << 31), + ®s->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 */