Add support for the Freescale i.MX31 PDK (a.k.a 3DS) board. Ethernet and MC13873 RTC support is enabled by this patch.

Booting from NAND is not supported yet so U-boot relies on some other initial boot loader to set up SDRAM and clocks and copying U-boot to SDRAM.

Signed-off-by: Magnus Lilja lilja.magnus@gmail.com ---

Changes from last version: - Rebased on current arm-master. - Replaced spaces in u-boot-lds with tabs.

Tested on a PDK board using a JTAG debugger to download U-boot to SDRAM.

MAKEALL | 1 + Makefile | 3 + board/freescale/mx31pdk/Makefile | 53 ++++++++++ board/freescale/mx31pdk/config.mk | 1 + board/freescale/mx31pdk/lowlevel_init.S | 30 ++++++ board/freescale/mx31pdk/mx31pdk.c | 76 ++++++++++++++ board/freescale/mx31pdk/u-boot.lds | 59 +++++++++++ include/configs/mx31pdk.h | 163 +++++++++++++++++++++++++++++++ 8 files changed, 386 insertions(+), 0 deletions(-)

diff --git a/MAKEALL b/MAKEALL index aa602b7..f877224 100755 --- a/MAKEALL +++ b/MAKEALL @@ -525,6 +525,7 @@ LIST_ARM11=" \ imx31_litekit \ imx31_phycore \ mx31ads \ + mx31pdk \ smdk6400 \ "

diff --git a/Makefile b/Makefile index fceb8a2..58ceff3 100644 --- a/Makefile +++ b/Makefile @@ -2814,6 +2814,9 @@ imx31_phycore_config : unconfig mx31ads_config : unconfig @$(MKCONFIG) $(@:_config=) arm arm1136 mx31ads freescale mx31

+mx31pdk_config : unconfig + @$(MKCONFIG) $(@:_config=) arm arm1136 mx31pdk freescale mx31 + omap2420h4_config : unconfig @$(MKCONFIG) $(@:_config=) arm arm1136 omap2420h4 NULL omap24xx

diff --git a/board/freescale/mx31pdk/Makefile b/board/freescale/mx31pdk/Makefile new file mode 100644 index 0000000..6ae34ea --- /dev/null +++ b/board/freescale/mx31pdk/Makefile @@ -0,0 +1,53 @@ +# +# (C) Copyright 2008 Magnus Lilja lilja.magnus@gmail.com +# +# (C) Copyright 2000-2006 +# 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 := mx31pdk.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 .depend + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/freescale/mx31pdk/config.mk b/board/freescale/mx31pdk/config.mk new file mode 100644 index 0000000..d34dc02 --- /dev/null +++ b/board/freescale/mx31pdk/config.mk @@ -0,0 +1 @@ +TEXT_BASE = 0x87f00000 diff --git a/board/freescale/mx31pdk/lowlevel_init.S b/board/freescale/mx31pdk/lowlevel_init.S new file mode 100644 index 0000000..a94ea7f --- /dev/null +++ b/board/freescale/mx31pdk/lowlevel_init.S @@ -0,0 +1,30 @@ +/* + * (C) Copyright 2008 Magnus Lilja lilja.magnus@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 + */ + +/* + * This is just to keep the linker happy. + */ + +.globl lowlevel_init +lowlevel_init: + mov pc, lr + diff --git a/board/freescale/mx31pdk/mx31pdk.c b/board/freescale/mx31pdk/mx31pdk.c new file mode 100644 index 0000000..9eed979 --- /dev/null +++ b/board/freescale/mx31pdk/mx31pdk.c @@ -0,0 +1,76 @@ +/* + * + * (C) Copyright 2008 Magnus Lilja lilja.magnus@gmail.com + * + * (c) 2007 Pengutronix, Sascha Hauer s.hauer@pengutronix.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 <asm/arch/mx31.h> +#include <asm/arch/mx31-regs.h> + +DECLARE_GLOBAL_DATA_PTR; + +int dram_init(void) +{ + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; + + return 0; +} + +int board_init(void) +{ + /* CS5: CPLD incl. network controller */ + __REG(CSCR_U(5)) = 0x0000d843; + __REG(CSCR_L(5)) = 0x22252521; + __REG(CSCR_A(5)) = 0x22220a00; + + /* setup pins for UART1 */ + mx31_gpio_mux(MUX_RXD1__UART1_RXD_MUX); + mx31_gpio_mux(MUX_TXD1__UART1_TXD_MUX); + mx31_gpio_mux(MUX_RTS1__UART1_RTS_B); + mx31_gpio_mux(MUX_CTS1__UART1_CTS_B); + + /* SPI2 */ + mx31_gpio_mux(MUX_CSPI2_SS2__CSPI2_SS2_B); + mx31_gpio_mux(MUX_CSPI2_SCLK__CSPI2_CLK); + mx31_gpio_mux(MUX_CSPI2_SPI_RDY__CSPI2_DATAREADY_B); + mx31_gpio_mux(MUX_CSPI2_MOSI__CSPI2_MOSI); + mx31_gpio_mux(MUX_CSPI2_MISO__CSPI2_MISO); + mx31_gpio_mux(MUX_CSPI2_SS0__CSPI2_SS0_B); + mx31_gpio_mux(MUX_CSPI2_SS1__CSPI2_SS1_B); + + /* start SPI2 clock */ + __REG(CCM_CGR2) = __REG(CCM_CGR2) | (3 << 4); + + gd->bd->bi_arch_number = MACH_TYPE_MX31_3DS; /* board id for linux */ + gd->bd->bi_boot_params = 0x80000100; /* adress of boot parameters */ + + return 0; +} + +int checkboard(void) +{ + printf("Board: i.MX31 MAX PDK (3DS)\n"); + return 0; +} diff --git a/board/freescale/mx31pdk/u-boot.lds b/board/freescale/mx31pdk/u-boot.lds new file mode 100644 index 0000000..e96509a --- /dev/null +++ b/board/freescale/mx31pdk/u-boot.lds @@ -0,0 +1,59 @@ +/* + * January 2004 - Changed to support H4 device + * Copyright (c) 2004 Texas Instruments + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, gj@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/arm1136/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/mx31pdk.h b/include/configs/mx31pdk.h new file mode 100644 index 0000000..7b71a14 --- /dev/null +++ b/include/configs/mx31pdk.h @@ -0,0 +1,163 @@ +/* + * (C) Copyright 2008 Magnus Lilja lilja.magnus@gmail.com + * + * (C) Copyright 2004 + * Texas Instruments. + * Richard Woodruff r-woodruff2@ti.com + * Kshitij Gupta kshitij@ti.com + * + * Configuration settings for the Freescale i.MX31 PDK board. + * + * 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 + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +#include <asm/arch/mx31-regs.h> + +/* High Level Configuration Options */ +#define CONFIG_ARM1136 1 /* This is an arm1136 CPU core */ +#define CONFIG_MX31 1 /* in a mx31 */ +#define CONFIG_MX31_HCLK_FREQ 26000000 +#define CONFIG_MX31_CLK32 32768 + +#define CONFIG_DISPLAY_CPUINFO +#define CONFIG_DISPLAY_BOARDINFO + +#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */ +#define CONFIG_SETUP_MEMORY_TAGS 1 +#define CONFIG_INITRD_TAG 1 + +/* No support for NAND boot for i.MX31 PDK yet, so we rely on some other + * program to initialize the SDRAM. + */ +#define CONFIG_SKIP_LOWLEVEL_INIT + +/* + * Size of malloc() pool + */ +#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 128 * 1024) +/* Bytes reserved for initial data */ +#define CONFIG_SYS_GBL_DATA_SIZE 128 + +/* + * Hardware drivers + */ + +#define CONFIG_MX31_UART 1 +#define CONFIG_SYS_MX31_UART1 1 + +#define CONFIG_HARD_SPI 1 +#define CONFIG_MXC_SPI 1 +#define CONFIG_MXC_SPI_IFACE 1 +#define CONFIG_DEFAULT_SPI_BUS 1 +#define CONFIG_DEFAULT_SPI_MODE (SPI_MODE_2 | SPI_CS_HIGH) + +#define CONFIG_RTC_MC13783 1 + +/* MC13783 connected to CSPI2 and SS2 */ +#define CONFIG_MC13783_SPI_BUS 1 +#define CONFIG_MC13783_SPI_CS 2 + +/* allow to overwrite serial and ethaddr */ +#define CONFIG_ENV_OVERWRITE +#define CONFIG_CONS_INDEX 1 +#define CONFIG_BAUDRATE 115200 +#define CONFIG_SYS_BAUDRATE_TABLE {9600, 19200, 38400, 57600, 115200} + +/*********************************************************** + * Command definition + ***********************************************************/ + +#include <config_cmd_default.h> + +#define CONFIG_CMD_MII +#define CONFIG_CMD_PING +#define CONFIG_CMD_SPI +#define CONFIG_CMD_DATE + +/* Disabled due to compilation errors in cmd_bootm.c (IMLS seems to require + * that CFG_NO_FLASH is undefined). + */ +#undef CONFIG_CMD_IMLS + +#define CONFIG_BOOTDELAY 3 + +#define CONFIG_EXTRA_ENV_SETTINGS \ + "bootargs_base=setenv bootargs console=ttymxc0,115200\0" \ + "bootargs_nfs=setenv bootargs $(bootargs) root=/dev/nfs " \ + "ip=dhcp nfsroot=$(serverip):$(nfsrootfs),v3,tcp\0" \ + "bootcmd=run bootcmd_net\0" \ + "bootcmd_net=run bootargs_base bootargs_mtd bootargs_nfs; " \ + "tftpboot 0x81000000 uImage-mx31; bootm\0" + +#define CONFIG_DRIVER_SMC911X 1 +#define CONFIG_DRIVER_SMC911X_BASE CS5_BASE +#define CONFIG_DRIVER_SMC911X_32_BIT 1 + +/* + * Miscellaneous configurable options + */ +#define CONFIG_SYS_LONGHELP /* undef to save memory */ +#define CONFIG_SYS_PROMPT "uboot> " +#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */ +/* Print Buffer Size */ +#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \ + sizeof(CONFIG_SYS_PROMPT)+16) +/* max number of command args */ +#define CONFIG_SYS_MAXARGS 16 +/* Boot Argument Buffer Size */ +#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE + +#define CONFIG_SYS_MEMTEST_START PHYS_SDRAM_1 /* memtest works on */ +#define CONFIG_SYS_MEMTEST_END 0x10000 + +#define CONFIG_SYS_LOAD_ADDR 0x81000000 /* default load address */ + +#define CONFIG_SYS_HZ 1000 + +#define CONFIG_CMDLINE_EDITING 1 + +/*----------------------------------------------------------------------- + * Stack sizes + * + * The stack sizes are set up in start.S using the settings below + */ +#define CONFIG_STACKSIZE (128 * 1024) /* regular stack */ + +/*----------------------------------------------------------------------- + * Physical Memory Map + */ +#define CONFIG_NR_DRAM_BANKS 1 +#define PHYS_SDRAM_1 CSD0_BASE +#define PHYS_SDRAM_1_SIZE (128 * 1024 * 1024) + +/*----------------------------------------------------------------------- + * FLASH and environment organization + */ +/* No NOR flash present */ +#define CONFIG_SYS_NO_FLASH 1 + +#define CONFIG_ENV_IS_NOWHERE 1 + +#define CONFIG_ENV_SIZE (128 * 1024) + +#endif /* __CONFIG_H */ +