OMAP4 Panda is a reference board based on OMAP4430, an ARMV7 Cortex A9 CPU
This patch adds minimum support for booting the board. It assumes U-boot is loaded to SDRAM with the help of another small bootloader (x-load) running from SRAM. U-boot currently relies on x-load for clock, mux, and SDRAM initialization
Signed-off-by: Steve Sakoman steve@sakoman.com --- MAINTAINERS | 1 + MAKEALL | 1 + board/ti/panda/Makefile | 49 ++++++++++++ board/ti/panda/config.mk | 32 ++++++++ board/ti/panda/panda.c | 61 ++++++++++++++ boards.cfg | 1 + include/configs/omap4_panda.h | 174 +++++++++++++++++++++++++++++++++++++++++ 7 files changed, 319 insertions(+), 0 deletions(-) create mode 100644 board/ti/panda/Makefile create mode 100644 board/ti/panda/config.mk create mode 100644 board/ti/panda/panda.c create mode 100644 include/configs/omap4_panda.h
diff --git a/MAINTAINERS b/MAINTAINERS index 36327ed..a5db970 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -756,6 +756,7 @@ Nomadik Linux Team STN_WMM_nomadik_linux@list.st.com Steve Sakoman sakoman@gmail.com
omap3_overo ARM ARMV7 (OMAP3xx SoC) + omap4_panda ARM ARMV7 (OMAP4xx SoC) omap4_sdp4430 ARM ARMV7 (OMAP4xx SoC)
Jens Scharsig esw@bus-elektronik.de diff --git a/MAKEALL b/MAKEALL index 6acd69d..5413f6d 100755 --- a/MAKEALL +++ b/MAKEALL @@ -654,6 +654,7 @@ LIST_ARMV7=" \ omap3_sdp3430 \ omap3_zoom1 \ omap3_zoom2 \ + omap4_panda \ omap4_sdp4430 \ s5p_goni \ smdkc100 \ diff --git a/board/ti/panda/Makefile b/board/ti/panda/Makefile new file mode 100644 index 0000000..81e5469 --- /dev/null +++ b/board/ti/panda/Makefile @@ -0,0 +1,49 @@ +# +# (C) Copyright 2000, 2001, 2002 +# 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 := panda.o + +SRCS := $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) + +$(LIB): $(obj).depend $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +clean: + rm -f $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak $(obj).depend + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/ti/panda/config.mk b/board/ti/panda/config.mk new file mode 100644 index 0000000..7382263 --- /dev/null +++ b/board/ti/panda/config.mk @@ -0,0 +1,32 @@ +# +# (C) Copyright 2006-2009 +# Texas Instruments Incorporated, <www.ti.com> +# +# OMAP 4430 SDP +# see http://www.ti.com/ for more information on Texas Instruments +# +# 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 +# +# SDRAM Address Space: +# 8000'0000 - 9fff'ffff (512 MB) +# Linux-Kernel is expected to be at 8000'8000, entry 8000'8000 +# (mem base + reserved) + +# Let's place u-boot 1MB before the end of SDRAM. +TEXT_BASE = 0x9ff00000 diff --git a/board/ti/panda/panda.c b/board/ti/panda/panda.c new file mode 100644 index 0000000..46a5d1d --- /dev/null +++ b/board/ti/panda/panda.c @@ -0,0 +1,61 @@ +/* + * (C) Copyright 2010 + * Texas Instruments Incorporated, <www.ti.com> + * Steve Sakoman steve@sakoman.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 <common.h> +#include <asm/arch/sys_proto.h> + +DECLARE_GLOBAL_DATA_PTR; + +const struct omap_sysinfo sysinfo = { + "Board: OMAP4 Panda\n" +}; + +/** + * @brief board_init + * + * @return 0 + */ +int board_init(void) +{ + gd->bd->bi_arch_number = MACH_TYPE_OMAP4_PANDA; + gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */ + + return 0; +} + +int board_eth_init(bd_t *bis) +{ + return 0; +} + +/** + * @brief misc_init_r - Configure Panda board specific configurations + * such as power configurations, ethernet initialization as phase2 of + * boot sequence + * + * @return 0 + */ +int misc_init_r(void) +{ + return 0; +} diff --git a/boards.cfg b/boards.cfg index 7bf0dee..7091ac4 100644 --- a/boards.cfg +++ b/boards.cfg @@ -261,6 +261,7 @@ omap3_zoom2 arm armv7 zoom2 logicpd omap3 omap3_beagle arm armv7 beagle ti omap3 omap3_evm arm armv7 evm ti omap3 omap3_sdp3430 arm armv7 sdp3430 ti omap3 +omap4_panda arm armv7 panda ti omap4 omap4_sdp4430 arm armv7 sdp4430 ti omap4 devkit8000 arm armv7 devkit8000 timll omap3 smdkc100 arm armv7 smdkc100 samsung s5pc1xx diff --git a/include/configs/omap4_panda.h b/include/configs/omap4_panda.h new file mode 100644 index 0000000..5b96b2e --- /dev/null +++ b/include/configs/omap4_panda.h @@ -0,0 +1,174 @@ +/* + * (C) Copyright 2010 + * Texas Instruments Incorporated. + * Steve Sakoman steve@sakoman.com + * + * Configuration settings for the TI OMAP4 Panda 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 + +/* + * High Level Configuration Options + */ +#define CONFIG_ARMV7 1 /* This is an ARM V7 CPU core */ +#define CONFIG_OMAP 1 /* in a TI OMAP core */ +#define CONFIG_OMAP44XX 1 /* which is a 44XX */ +#define CONFIG_OMAP4430 1 /* which is in a 4430 */ +#define CONFIG_PANDA 1 /* working with Panda */ + +/* Get CPU defs */ +#include <asm/arch/cpu.h> +#include <asm/arch/omap4.h> + +/* Display CPU and Board Info */ +#define CONFIG_DISPLAY_CPUINFO 1 +#define CONFIG_DISPLAY_BOARDINFO 1 + +/* Keep L2 Cache Disabled */ +#define CONFIG_L2_OFF 1 + +/* Clock Defines */ +#define V_OSCK 38400000 /* Clock output from T2 */ +#define V_SCLK V_OSCK + +#undef CONFIG_USE_IRQ /* no support for IRQs */ +#define CONFIG_MISC_INIT_R + +#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */ +#define CONFIG_SETUP_MEMORY_TAGS 1 +#define CONFIG_INITRD_TAG 1 +#define CONFIG_REVISION_TAG 1 + +/* + * Size of malloc() pool + * Total Size Environment - 256k + * Malloc - add 256k + */ +#define CONFIG_ENV_SIZE (256 << 10) +#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + (256 << 10)) +#define CONFIG_SYS_GBL_DATA_SIZE 128 /* bytes reserved for */ + /* initial data */ +/* Vector Base */ +#define CONFIG_SYS_CA9_VECTOR_BASE SRAM_ROM_VECT_BASE + +/* + * Hardware drivers + */ + +/* + * serial port - NS16550 compatible + */ +#define V_NS16550_CLK 48000000 + +#define CONFIG_SYS_NS16550 +#define CONFIG_SYS_NS16550_SERIAL +#define CONFIG_SYS_NS16550_REG_SIZE (-4) +#define CONFIG_SYS_NS16550_CLK V_NS16550_CLK +#define CONFIG_CONS_INDEX 3 +#define CONFIG_SYS_NS16550_COM3 UART3_BASE + +#define CONFIG_ENV_IS_NOWHERE +#define CONFIG_ENV_OVERWRITE +#define CONFIG_BAUDRATE 115200 +#define CONFIG_SYS_BAUDRATE_TABLE {4800, 9600, 19200, 38400, 57600,\ + 115200} + +/* Flash */ +#define CONFIG_SYS_NO_FLASH 1 + +/* commands to include */ +#include <config_cmd_default.h> + +/* Disabled commands */ +#undef CONFIG_CMD_NET +#undef CONFIG_CMD_FPGA /* FPGA configuration Support */ +#undef CONFIG_CMD_IMLS /* List all found images */ + +/* + * Enabling relocation of u-boot by default + * Relocation can be skipped if u-boot is copied to the TEXT_BASE + */ +#undef CONFIG_SKIP_RELOCATE_UBOOT + +/* + * Environment setup + */ + +/* allow overwriting serial config and ethaddr */ +#define CONFIG_ENV_OVERWRITE + +#define CONFIG_EXTRA_ENV_SETTINGS \ + "loadaddr=0x82000000\0" \ + "console=ttyS2,115200n8\0" \ + +#define CONFIG_AUTO_COMPLETE 1 + +/* + * Miscellaneous configurable options + */ + +#define CONFIG_SYS_LONGHELP /* undef to save memory */ +#define CONFIG_SYS_HUSH_PARSER /* use "hush" command parser */ +#define CONFIG_SYS_PROMPT_HUSH_PS2 "> " +#define CONFIG_SYS_PROMPT "OMAP4430 SDP # " +#define CONFIG_SYS_CBSIZE 256 +/* Print Buffer Size */ +#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \ + sizeof(CONFIG_SYS_PROMPT) + 16) +#define CONFIG_SYS_MAXARGS 16 +/* Boot Argument Buffer Size */ +#define CONFIG_SYS_BARGSIZE (CONFIG_SYS_CBSIZE) + +/* + * memtest setup + */ +#define CONFIG_SYS_MEMTEST_START 0x80000000 +#define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_MEMTEST_START + (32 << 20)) + +/* Default load address */ +#define CONFIG_SYS_LOAD_ADDR 0x80000000 + +/* Use General purpose timer 1 */ +#define CONFIG_SYS_TIMERBASE GPT1_BASE +#define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */ +#define CONFIG_SYS_HZ 1000 + +/* + * Stack sizes + * + * The stack sizes are set up in start.S using the settings below + */ +#define CONFIG_STACKSIZE (128 << 10) /* Regular stack */ +#ifdef CONFIG_USE_IRQ +#define CONFIG_STACKSIZE_IRQ (4 << 10) /* IRQ stack */ +#define CONFIG_STACKSIZE_FIQ (4 << 10) /* FIQ stack */ +#endif + +/* + * SDRAM Memory Map + * Even though we use two CS all the memory + * is mapped to one contiguous block + */ +#define CONFIG_NR_DRAM_BANKS 1 + +#endif /* __CONFIG_H */