Adding support for OMAP4430 SDP board based on the TI OMAP4430 SOC.
TI OMAP4430 is an SOC based on ARM Cortex-A9 cpu. OMAP4430 SDP is a reference board based on OMAP4430.
This patch adds minimum support for booting the board. OMAP4430 SDP does not support XIP. U-boot is loaded to SDRAM with the help of another small bootloader running from SRAM. U-boot currently relies on this bootloader for clock, mux, and SDRAM initialization.
This will change when OMAP4430 Configuration Header(CH) is attached to u-boot. CH is a feature by which ROM code can be made to intialize the clocks and SDRAM and to copy u-boot directly into SDRAM from a non-XIP device.
More support such as MMC, ethernet etc will be added in subsequent patches.
Signed-off-by: Aneesh V aneesh@ti.com --- Makefile | 8 +- arch/arm/cpu/armv7/omap4/Makefile | 50 +++++ arch/arm/cpu/armv7/omap4/cache.S | 128 ++++++++++++ arch/arm/cpu/armv7/omap4/lowlevel_init.S | 49 +++++ arch/arm/cpu/armv7/omap4/omap4.c | 97 +++++++++ arch/arm/cpu/armv7/omap4/reset.S | 36 ++++ arch/arm/cpu/armv7/omap4/sys_info.c | 58 ++++++ arch/arm/cpu/armv7/omap4/timer.c | 140 +++++++++++++ arch/arm/include/asm/arch-omap4/cpu.h | 89 +++++++++ arch/arm/include/asm/arch-omap4/omap4.h | 142 ++++++++++++++ arch/arm/include/asm/arch-omap4/sys_proto.h | 36 ++++ board/ti/sdp4430/Makefile | 49 +++++ board/ti/sdp4430/config.mk | 32 +++ board/ti/sdp4430/sdp.c | 56 ++++++ include/configs/omap4_sdp4430.h | 280 +++++++++++++++++++++++++++ 15 files changed, 1249 insertions(+), 1 deletions(-) create mode 100644 arch/arm/cpu/armv7/omap4/Makefile create mode 100644 arch/arm/cpu/armv7/omap4/cache.S create mode 100644 arch/arm/cpu/armv7/omap4/lowlevel_init.S create mode 100644 arch/arm/cpu/armv7/omap4/omap4.c create mode 100644 arch/arm/cpu/armv7/omap4/reset.S create mode 100644 arch/arm/cpu/armv7/omap4/sys_info.c create mode 100644 arch/arm/cpu/armv7/omap4/timer.c create mode 100644 arch/arm/include/asm/arch-omap4/cpu.h create mode 100644 arch/arm/include/asm/arch-omap4/omap4.h create mode 100644 arch/arm/include/asm/arch-omap4/sys_proto.h create mode 100644 board/ti/sdp4430/Makefile create mode 100644 board/ti/sdp4430/config.mk create mode 100644 board/ti/sdp4430/sdp.c create mode 100644 include/configs/omap4_sdp4430.h
diff --git a/Makefile b/Makefile index 0c7c130..3fb488c 100644 --- a/Makefile +++ b/Makefile @@ -3152,7 +3152,7 @@ SMN42_config : unconfig @$(MKCONFIG) $(@:_config=) arm arm720t SMN42 siemens lpc2292
######################################################################### -## ARM CORTEX Systems +## ARM v7 Cortex-A8 systems #########################################################################
devkit8000_config : unconfig @@ -3183,6 +3183,12 @@ smdkc100_config: unconfig @$(MKCONFIG) $(@:_config=) arm armv7 smdkc100 samsung s5pc1xx
######################################################################### +## ARM v7 CORTEX-A9 Systems +######################################################################### +omap4_sdp4430_config : unconfig + @$(MKCONFIG) $(@:_config=) arm armv7 sdp4430 ti omap4 + +######################################################################### ## XScale Systems #########################################################################
diff --git a/arch/arm/cpu/armv7/omap4/Makefile b/arch/arm/cpu/armv7/omap4/Makefile new file mode 100644 index 0000000..824a64c --- /dev/null +++ b/arch/arm/cpu/armv7/omap4/Makefile @@ -0,0 +1,50 @@ +# +# (C) Copyright 2000-2003 +# 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 = $(obj)lib$(SOC).a + +SOBJS := lowlevel_init.o +SOBJS += reset.o + +COBJS += omap4.o +COBJS += sys_info.o +COBJS += timer.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS)) + +all: $(obj).depend $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/arm/cpu/armv7/omap4/cache.S b/arch/arm/cpu/armv7/omap4/cache.S new file mode 100644 index 0000000..3c78aa9 --- /dev/null +++ b/arch/arm/cpu/armv7/omap4/cache.S @@ -0,0 +1,128 @@ +/* + * Copyright (c) 2009 Wind River Systems, Inc. + * Tom Rix Tom.Rix@windriver.com + * + * This file is based on and replaces the existing cache.c file + * The copyrights for the cache.c file are: + * + * (C) Copyright 2008 Texas Insturments + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger mgroeger@sysgo.de + * + * (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 + */ + +/* + * omap4 cache code + */ + +.align 5 +.global invalidate_dcache +.global l2_cache_enable +.global l2_cache_disable +.global invalidate_icache +/* + * invalidate_dcache() + * + * Invalidate the whole L1 D-cache. + * + * Corrupted registers: r0-r5, r7, r9-r11 + * + * - mm - mm_struct describing address space + */ +invalidate_dcache: + stmfd r13!, {r0 - r5, r7, r9 - r12, r14} + mrc p15, 1, r0, c0, c0, 1 @ read clidr + ands r3, r0, #0x7000000 @ extract loc from clidr + mov r3, r3, lsr #23 @ left align loc bit field + beq finished_inval @ if loc is 0, then no need to + @ clean + mov r10, #0 @ start clean at cache level 0 +inval_loop1: + add r2, r10, r10, lsr #1 @ work out 3x current cache + @ level + mov r1, r0, lsr r2 @ extract cache type bits from + @ clidr + and r1, r1, #7 @ mask of the bits for current + @ cache only + cmp r1, #2 @ see what cache we have at + @ this level + blt skip_inval @ skip if no cache, or just + @ i-cache + mcr p15, 2, r10, c0, c0, 0 @ select current cache level + @ in cssr + mov r2, #0 @ operand for mcr SBZ + mcr p15, 0, r2, c7, c5, 4 @ flush prefetch buffer to + @ sych the new cssr&csidr, + @ with armv7 this is 'isb', + @ but we compile with armv5 + mrc p15, 1, r1, c0, c0, 0 @ read the new csidr + and r2, r1, #7 @ extract the length of the + @ cache lines + add r2, r2, #4 @ add 4 (line length offset) + ldr r4, =0x3ff + ands r4, r4, r1, lsr #3 @ find maximum number on the + @ way size + clz r5, r4 @ find bit position of way + @ size increment + ldr r7, =0x7fff + ands r7, r7, r1, lsr #13 @ extract max number of the + @ index size +inval_loop2: + mov r9, r4 @ create working copy of max + @ way size +inval_loop3: + orr r11, r10, r9, lsl r5 @ factor way and cache number + @ into r11 + orr r11, r11, r7, lsl r2 @ factor index number into r11 + mcr p15, 0, r11, c7, c6, 2 @ invalidate by set/way + subs r9, r9, #1 @ decrement the way + bge inval_loop3 + subs r7, r7, #1 @ decrement the index + bge inval_loop2 +skip_inval: + add r10, r10, #2 @ increment cache number + cmp r3, r10 + bgt inval_loop1 +finished_inval: + mov r10, #0 @ swith back to cache level 0 + mcr p15, 2, r10, c0, c0, 0 @ select current cache level + @ in cssr + dmb @ DMB is sufficient to guarantee the + @ ordering of D$ maintenance operations. + + ldmfd r13!, {r0 - r5, r7, r9 - r12, pc} + +l2_cache_enable: + bx r14 + +l2_cache_disable: + bx r14 + +invalidate_icache: + /* ICIALLU - Invalidate the entire Instruction Cache to POU */ + mov r0, #0 + mcr p15, 0, r0, c7, c5, 0 + dsb + bx lr diff --git a/arch/arm/cpu/armv7/omap4/lowlevel_init.S b/arch/arm/cpu/armv7/omap4/lowlevel_init.S new file mode 100644 index 0000000..fd2ff38 --- /dev/null +++ b/arch/arm/cpu/armv7/omap4/lowlevel_init.S @@ -0,0 +1,49 @@ +/* + * Board specific setup info + * + * (C) Copyright 2008 + * Texas Instruments, <www.ti.com> + * + * Initial Code by: + * Richard Woodruff r-woodruff2@ti.com + * Syed Mohammed Khasim khasim@ti.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 <asm/arch/omap4.h> + +.globl lowlevel_init +lowlevel_init: + /* + * Setup a temporary stack + */ + ldr sp, =LOW_LEVEL_SRAM_STACK + + /* + * Save the old lr(passed in ip) and the current lr to stack + */ + push {ip, lr} + + /* + * go setup pll, mux, memory + */ + bl s_init + pop {ip, pc} + diff --git a/arch/arm/cpu/armv7/omap4/omap4.c b/arch/arm/cpu/armv7/omap4/omap4.c new file mode 100644 index 0000000..a28cbcf --- /dev/null +++ b/arch/arm/cpu/armv7/omap4/omap4.c @@ -0,0 +1,97 @@ +/* + * + * Common functions for OMAP4 processor + * + * (C) Copyright 2004-2008 + * Texas Instruments, <www.ti.com> + * + * Author : + * Sunil Kumar sunilsaini05@gmail.com + * Shashi Ranjan shashiranjanmca05@gmail.com + * Aneesh V aneesh@ti.com - Created OMAP4 version + * + * Derived from Beagle Board and 3430 SDP code by + * Richard Woodruff r-woodruff2@ti.com + * Syed Mohammed Khasim khasim@ti.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 the global data pointer - gd */ +DECLARE_GLOBAL_DATA_PTR; + +/* + * Routine: s_init + * Description: Does early system init of muxing and clocks. + * - Called path is with SRAM stack. + */ +void s_init (void) +{ + watchdog_init (); +} + +/* + * Routine: wait_for_command_complete + * Description: Wait for posting to finish on watchdog + */ +void wait_for_command_complete (struct watchdog *wd_base) +{ + int pending = 1; + do { + pending = readl (&wd_base->wwps); + } while (pending); +} + +/* + * Routine: watchdog_init + * Description: Shut down watch dogs + */ +void watchdog_init (void) +{ + struct watchdog *wd2_base = (struct watchdog *)WDT2_BASE; + + writel (WD_UNLOCK1, &wd2_base->wspr); + wait_for_command_complete (wd2_base); + writel (WD_UNLOCK2, &wd2_base->wspr); +} + +/* + * Routine: dram_init + * Description: sets uboots idea of sdram size + */ +int dram_init (void) +{ + gd->bd->bi_dram[0].start = 0x80000000; + gd->bd->bi_dram[0].size = 512 << 20; + return 0; +} + +#ifdef CONFIG_DISPLAY_BOARDINFO +/* + * Print board information + */ +int checkboard (void) +{ + printf ("%s\n", sysinfo.board_string); + return 0; +} +#endif /* CONFIG_DISPLAY_BOARDINFO */ diff --git a/arch/arm/cpu/armv7/omap4/reset.S b/arch/arm/cpu/armv7/omap4/reset.S new file mode 100644 index 0000000..a53c408 --- /dev/null +++ b/arch/arm/cpu/armv7/omap4/reset.S @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2009 Samsung Electronics. + * Minkyu Kang mk7.kang@samsung.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 <config.h> + +.global reset_cpu +reset_cpu: + ldr r1, rstctl @ get addr for global reset + @ reg + mov r3, #0x2 @ full reset pll + mpu + str r3, [r1] @ force reset + mov r0, r0 +_loop_forever: + b _loop_forever +rstctl: + .word PRM_RSTCTRL diff --git a/arch/arm/cpu/armv7/omap4/sys_info.c b/arch/arm/cpu/armv7/omap4/sys_info.c new file mode 100644 index 0000000..acfafad --- /dev/null +++ b/arch/arm/cpu/armv7/omap4/sys_info.c @@ -0,0 +1,58 @@ +/* + * (C) Copyright 2008 + * Texas Instruments, <www.ti.com> + * + * Author : + * Manikandan Pillai mani.pillai@ti.com + * + * Derived from Beagle Board and 3430 SDP code by + * Richard Woodruff r-woodruff2@ti.com + * Syed Mohammed Khasim khasim@ti.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 + */ + +#include <common.h> +#include <asm/arch/sys_proto.h> + +/* + * get_device_type(): tell if GP/HS/EMU/TST + */ +u32 get_device_type (void) +{ + return 0; +} + +/* + * get_board_rev() - get board revision + */ +u32 get_board_rev (void) +{ + return 0x20; +} + +/* + * Print CPU information + */ +#ifdef CONFIG_DISPLAY_CPUINFO +int print_cpuinfo (void) +{ + + printf ("CPU : OMAP4430 ES1.0 \n"); + + return 0; +} +#endif /* CONFIG_DISPLAY_CPUINFO */ diff --git a/arch/arm/cpu/armv7/omap4/timer.c b/arch/arm/cpu/armv7/omap4/timer.c new file mode 100644 index 0000000..2c2ec45 --- /dev/null +++ b/arch/arm/cpu/armv7/omap4/timer.c @@ -0,0 +1,140 @@ +/* + * (C) Copyright 2008 + * Texas Instruments + * + * Richard Woodruff r-woodruff2@ti.com + * Syed Moahmmed Khasim khasim@ti.com + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger mgroeger@sysgo.de + * Alex Zuepke azu@sysgo.de + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, garyj@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 <common.h> +#include <asm/io.h> +#include <asm/arch/omap4.h> + +static ulong timestamp; +static ulong lastinc; +static struct gptimer *timer_base = (struct gptimer *)CONFIG_SYS_TIMERBASE; + +/* + * Nothing really to do with interrupts, just starts up a counter. + * We run the counter with 13MHz, divided by 8, resulting in timer + * frequency of 1.625MHz. With 32bit counter register, counter + * overflows in ~44min + */ + +/* 13MHz / 8 = 1.625MHz */ +#define TIMER_CLOCK (V_SCLK / (2 << CONFIG_SYS_PTV)) +#define TIMER_LOAD_VAL 0xffffffff + +int timer_init (void) +{ + /* start the counter ticking up, reload value on overflow */ + writel (TIMER_LOAD_VAL, &timer_base->tldr); + /* enable timer */ + writel ((CONFIG_SYS_PTV << 2) | TCLR_PRE | TCLR_AR | TCLR_ST, + &timer_base->tclr); + + reset_timer_masked (); /* init the timestamp and lastinc value */ + + return 0; +} + +/* + * timer without interrupts + */ +void reset_timer (void) +{ + reset_timer_masked (); +} + +ulong get_timer (ulong base) +{ + return get_timer_masked () - base; +} + +void set_timer (ulong t) +{ + timestamp = t; +} + +/* delay x useconds */ +void __udelay (unsigned long usec) +{ + long tmo = usec * (TIMER_CLOCK / 1000) / 1000; + unsigned long now, last = readl (&timer_base->tcrr); + + while (tmo > 0) { + now = readl (&timer_base->tcrr); + if (last > now) /* count up timer overflow */ + tmo -= TIMER_LOAD_VAL - last + now; + else + tmo -= now - last; + last = now; + } +} + +void reset_timer_masked (void) +{ + /* reset time, capture current incrementer value time */ + lastinc = readl (&timer_base->tcrr) / (TIMER_CLOCK / CONFIG_SYS_HZ); + timestamp = 0; /* start "advancing" time stamp from 0 */ +} + +ulong get_timer_masked (void) +{ + /* current tick value */ + ulong now = readl (&timer_base->tcrr) / (TIMER_CLOCK / CONFIG_SYS_HZ); + + if (now >= lastinc) + /* normal mode (non roll) */ + /* move stamp fordward with absoulte diff ticks */ + timestamp += (now - lastinc); + else /* we have rollover of incrementer */ + timestamp += ((TIMER_LOAD_VAL / (TIMER_CLOCK / CONFIG_SYS_HZ)) + - lastinc) + now; + lastinc = now; + return timestamp; +} + +/* + * This function is derived from PowerPC code (read timebase as long long). + * On ARM it just returns the timer value. + */ +unsigned long long get_ticks (void) +{ + return get_timer (0); +} + +/* + * This function is derived from PowerPC code (timebase clock frequency). + * On ARM it returns the number of timer ticks per second. + */ +ulong get_tbclk (void) +{ + return CONFIG_SYS_HZ; +} diff --git a/arch/arm/include/asm/arch-omap4/cpu.h b/arch/arm/include/asm/arch-omap4/cpu.h new file mode 100644 index 0000000..637e02c --- /dev/null +++ b/arch/arm/include/asm/arch-omap4/cpu.h @@ -0,0 +1,89 @@ +/* + * (C) Copyright 2006-2008 + * Texas Instruments, <www.ti.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 + * + */ + +#ifndef _CPU_OMAP4_H +#define _CPU_OMAP4_H + +#if !(defined(__KERNEL_STRICT_NAMES) || defined(__ASSEMBLY__)) +#include <asm/types.h> +#endif /* !(__KERNEL_STRICT_NAMES || __ASSEMBLY__) */ + +#ifndef __KERNEL_STRICT_NAMES +#ifndef __ASSEMBLY__ +struct gptimer { + u32 tidr; /* 0x00 r */ + u8 res[0xc]; + u32 tiocp_cfg; /* 0x10 rw */ + u32 tistat; /* 0x14 r */ + u32 tisr; /* 0x18 rw */ + u32 tier; /* 0x1c rw */ + u32 twer; /* 0x20 rw */ + u32 tclr; /* 0x24 rw */ + u32 tcrr; /* 0x28 rw */ + u32 tldr; /* 0x2c rw */ + u32 ttgr; /* 0x30 rw */ + u32 twpc; /* 0x34 r */ + u32 tmar; /* 0x38 rw */ + u32 tcar1; /* 0x3c r */ + u32 tcicr; /* 0x40 rw */ + u32 tcar2; /* 0x44 r */ +}; +#endif /* __ASSEMBLY__ */ +#endif /* __KERNEL_STRICT_NAMES */ + +/* enable sys_clk NO-prescale /1 */ +#define GPT_EN ((0x0 << 2) | (0x1 << 1) | (0x1 << 0)) + +/* Watchdog */ +#ifndef __KERNEL_STRICT_NAMES +#ifndef __ASSEMBLY__ +struct watchdog { + u8 res1[0x34]; + u32 wwps; /* 0x34 r */ + u8 res2[0x10]; + u32 wspr; /* 0x48 rw */ +}; +#endif /* __ASSEMBLY__ */ +#endif /* __KERNEL_STRICT_NAMES */ + +#define WD_UNLOCK1 0xAAAA +#define WD_UNLOCK2 0x5555 + +#define SYSCLKDIV_1 (0x1 << 6) +#define SYSCLKDIV_2 (0x1 << 7) + +#define CLKSEL_GPT1 (0x1 << 0) + +#define EN_GPT1 (0x1 << 0) +#define EN_32KSYNC (0x1 << 2) + +#define ST_WDT2 (0x1 << 5) + +#define RESETDONE (0x1 << 0) + +#define TCLR_ST (0x1 << 0) +#define TCLR_AR (0x1 << 1) +#define TCLR_PRE (0x1 << 5) + +#endif /* _CPU_H */ diff --git a/arch/arm/include/asm/arch-omap4/omap4.h b/arch/arm/include/asm/arch-omap4/omap4.h new file mode 100644 index 0000000..62557f3 --- /dev/null +++ b/arch/arm/include/asm/arch-omap4/omap4.h @@ -0,0 +1,142 @@ +/* + * (C) Copyright 2006-2008 + * Texas Instruments, <www.ti.com> + * + * Authors: + * Aneesh V aneesh@ti.com + * + * Derived from OMAP3 work by + * Richard Woodruff r-woodruff2@ti.com + * Syed Mohammed Khasim x0khasim@ti.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 + */ + +#ifndef _OMAP4_H_ +#define _OMAP4_H_ + +#if !(defined(__KERNEL_STRICT_NAMES) || defined(__ASSEMBLY__)) +#include <asm/types.h> +#endif /* !(__KERNEL_STRICT_NAMES || __ASSEMBLY__) */ + +/* + * L4 Peripherals - L4 Wakeup and L4 Core now + */ +#define OMAP44XX_L4_CORE_BASE 0x4A000000 +#define OMAP44XX_L4_WKUP_BASE 0x4A300000 +#define OMAP44XX_L4_PER_BASE 0x48000000 + +/* CONTROL */ +#define CTRL_BASE (OMAP44XX_L4_CORE_BASE + 0x2000) + +/* UART */ +#define UART1_BASE (OMAP44XX_L4_PER_BASE + 0x6a000) +#define UART2_BASE (OMAP44XX_L4_PER_BASE + 0x6c000) +#define UART3_BASE (OMAP44XX_L4_PER_BASE + 0x20000) + +/* General Purpose Timers */ +#define GPT1_BASE (OMAP44XX_L4_WKUP_BASE + 0x18000) + +/* Watchdog Timer2 - MPU watchdog */ +#define WDT2_BASE (OMAP44XX_L4_WKUP_BASE + 0x14000) + +/* 32KTIMER */ +#define SYNC_32KTIMER_BASE (OMAP44XX_L4_WKUP_BASE + 0x4000) + +/* GPMC */ +#define GPMC_BASE 0x50000000 + +/* + * Hardware Register Details + */ + +/* Watchdog Timer */ +#define WD_UNLOCK1 0xAAAA +#define WD_UNLOCK2 0x5555 + +/* GP Timer */ +#define TCLR_ST (0x1 << 0) +#define TCLR_AR (0x1 << 1) +#define TCLR_PRE (0x1 << 5) + +/* + * PRCM + */ + +/* PRM */ +#define PRM_BASE 0x4A306000 +#define PRM_DEVICE_BASE (PRM_BASE + 0x1B00) + +#define PRM_RSTCTRL PRM_DEVICE_BASE + +#ifndef __ASSEMBLY__ + +struct s32ktimer { + unsigned char res[0x10]; + unsigned int s32k_cr; /* 0x10 */ +}; + +struct gptimer { + u32 tidr; /* 0x00 r */ + u8 res[0xc]; + u32 tiocp_cfg; /* 0x10 rw */ + u32 tistat; /* 0x14 r */ + u32 tisr; /* 0x18 rw */ + u32 tier; /* 0x1c rw */ + u32 twer; /* 0x20 rw */ + u32 tclr; /* 0x24 rw */ + u32 tcrr; /* 0x28 rw */ + u32 tldr; /* 0x2c rw */ + u32 ttgr; /* 0x30 rw */ + u32 twpc; /* 0x34 r */ + u32 tmar; /* 0x38 rw */ + u32 tcar1; /* 0x3c r */ + u32 tcicr; /* 0x40 rw */ + u32 tcar2; /* 0x44 r */ +}; + +struct watchdog { + u8 res1[0x34]; + u32 wwps; /* 0x34 r */ + u8 res2[0x10]; + u32 wspr; /* 0x48 rw */ +}; + +#endif /* __ASSEMBLY__ */ + +/* + * Non-secure SRAM Addresses + * Non-secure RAM starts at 0x40300000 for GP devices. But we keep SRAM_BASE + * at 0x40304000(EMU base) so that our code works for both EMU and GP + */ +#define NON_SECURE_SRAM_START 0x40304000 +#define NON_SECURE_SRAM_END 0x4030E000 /* Not inclusive */ +/* base address for indirect vectors (internal boot mode) */ +#define SRAM_ROM_VECT_BASE 0x4030D000 +/* Temporary SRAM stack used while low level init is done */ +#define LOW_LEVEL_SRAM_STACK NON_SECURE_SRAM_END + +/* + * OMAP4 real hardware: + * TODO: Change this to the IDCODE in the hw regsiter + */ +#define CPU_OMAP4430_ES10 1 +#define CPU_OMAP4430_ES20 2 + +#endif diff --git a/arch/arm/include/asm/arch-omap4/sys_proto.h b/arch/arm/include/asm/arch-omap4/sys_proto.h new file mode 100644 index 0000000..29915ee --- /dev/null +++ b/arch/arm/include/asm/arch-omap4/sys_proto.h @@ -0,0 +1,36 @@ +/* + * (C) Copyright 2004-2008 + * Texas Instruments, <www.ti.com> + * Richard Woodruff r-woodruff2@ti.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 _SYS_PROTO_H_ +#define _SYS_PROTO_H_ +#include <asm/arch/omap4.h> +#include <asm/io.h> + +struct omap_sysinfo { + char *board_string; +}; + +void watchdog_init (void); +u32 get_device_type (void); +void invalidate_dcache (u32); + +extern const struct omap_sysinfo sysinfo; + +#endif diff --git a/board/ti/sdp4430/Makefile b/board/ti/sdp4430/Makefile new file mode 100644 index 0000000..2554c7b --- /dev/null +++ b/board/ti/sdp4430/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 := sdp.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/sdp4430/config.mk b/board/ti/sdp4430/config.mk new file mode 100644 index 0000000..3c0349e --- /dev/null +++ b/board/ti/sdp4430/config.mk @@ -0,0 +1,32 @@ +# +# (C) Copyright 2006-2009 +# Texas Instruments Incorporated, <www.ti.com> +# +# OMAP 3430 SDP uses OMAP3 (ARM-CortexA8) cpu +# 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/sdp4430/sdp.c b/board/ti/sdp4430/sdp.c new file mode 100644 index 0000000..6989187 --- /dev/null +++ b/board/ti/sdp4430/sdp.c @@ -0,0 +1,56 @@ +/* + * (C) Copyright 2004-2009 + * Texas Instruments Incorporated, <www.ti.com> + * Richard Woodruff r-woodruff2@ti.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> + +const struct omap_sysinfo sysinfo = { + "Board: OMAP4430 SDP" +}; + +/** + * @brief board_init + * + * @return 0 + */ +int board_init (void) +{ + return 0; +} + +int board_eth_init (bd_t *bis) +{ + return 0; +} + +/** + * @brief misc_init_r - Configure SDP 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/include/configs/omap4_sdp4430.h b/include/configs/omap4_sdp4430.h new file mode 100644 index 0000000..68a0c27 --- /dev/null +++ b/include/configs/omap4_sdp4430.h @@ -0,0 +1,280 @@ +/* + * (C) Copyright 2006-2009 + * Texas Instruments Incorporated. + * Richard Woodruff r-woodruff2@ti.com + * Syed Mohammed Khasim x0khasim@ti.com + * Nishanth Menon nm@ti.com + * Aneesh V aneesh@ti.com + * + * Configuration settings for the 3430 TI SDP3430 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_ARMCORTEXA9 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_4430SDP 1 /* working with SDP */ + /*#define CONFIG_FASTBOOT 1*//* Using fastboot interface */ + +/* Get CPU defs */ +#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 + */ + +/* + * TWL4030 + */ +#define CONFIG_TWL4030_POWER 1 + +/* + * serial port - NS16550 compatible + */ +#define V_NS16550_CLK 48000000 /* 48MHz (APLL96/2) */ + +#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> + +#if 0 +/* Enabled commands */ +#define CONFIG_CMD_DHCP /* DHCP Support */ +#define CONFIG_CMD_EXT2 /* EXT2 Support */ +#define CONFIG_CMD_FAT /* FAT support */ +#define CONFIG_CMD_I2C /* I2C serial bus support */ +#define CONFIG_CMD_MMC /* MMC support */ +#endif + +/* Disabled commands */ +#undef CONFIG_CMD_NET +#undef CONFIG_CMD_FPGA /* FPGA configuration Support */ +#undef CONFIG_CMD_IMLS /* List all found images */ + +/* + * MMC boot support + */ +#if defined(CONFIG_CMD_MMC) +#define CONFIG_MMC 1 +#define CONFIG_DOS_PARTITION 1 +#endif + +/* + * I2C for power management setup + */ +#undef CONFIG_HARD_I2C +#define CONFIG_SYS_I2C_SPEED 100000 +#define CONFIG_SYS_I2C_SLAVE 1 +#define CONFIG_SYS_I2C_BUS 0 +#define CONFIG_SYS_I2C_BUS_SELECT 1 + +/* + * 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 + * + * Default boot order: mmc bootscript, MMC uImage, NOR image. + * Network booting environment must be configured at site. + */ + +/* allow overwriting serial config and ethaddr */ +#define CONFIG_ENV_OVERWRITE + +#define CONFIG_EXTRA_ENV_SETTINGS \ + "loadaddr=0x82000000\0" \ + "console=ttyS0,115200n8\0" \ + "mmcargs=setenv bootargs console=${console} " \ + "root=/dev/mmcblk0p2 rw " \ + "rootfstype=ext3 rootwait\0" \ + "norargs=setenv bootargs console=${console} " \ + "root=/dev/mtdblock3 rw " \ + "rootfstype=jffs2\0" \ + "loadbootscript=fatload mmc 0 ${loadaddr} boot.scr\0" \ + "bootscript=echo Running bootscript from MMC/SD ...; " \ + "autoscr ${loadaddr}\0" \ + "loaduimage=fatload mmc 0 ${loadaddr} uImage\0" \ + "mmcboot=echo Booting from MMC/SD ...; " \ + "run mmcargs; " \ + "bootm ${loadaddr}\0" \ + "norboot=echo Booting from NOR ...; " \ + "run norargs; " \ + "bootm 0x80000\0" \ + +#define CONFIG_BOOTCOMMAND \ + "if mmcinit; then " \ + "if run loadbootscript; then " \ + "run bootscript; " \ + "else " \ + "if run loaduimage; then " \ + "run mmcboot; " \ + "else run norboot; " \ + "fi; " \ + "fi; " \ + "else run norboot; fi" + +#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 /* Console I/O Buffer Size */ +/* Print Buffer Size */ +#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) + +/* SDRAM Test range - start at 16 meg boundary -ends at 1Meg - + * a basic sanity check ONLY + * IF you would like to increase coverage, increase the end address + * or run the test with custom options + */ +#define CONFIG_SYS_MEMTEST_START 0x80000000 +#define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_MEMTEST_START + (1 << 20)) + +/* Default load address */ +#define CONFIG_SYS_LOAD_ADDR 0x80000000 + +/*--------------------------------------------------------------------------*/ + +/* + * 3430 has 12 GP timers, they can be driven by the SysClk (12/13/19.2) or by + * 32KHz clk, or from external sig. This rate is divided by a local divisor. + */ +#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 + +/* Monitor at start of flash */ +#define CONFIG_SYS_MONITOR_BASE 0 +#define CONFIG_SYS_MONITOR_LEN (256 << 10) + +/* + * Although we don't have + * CFI FLASH driver setup + * NOR boot support - single 1 Gbit PF48F6000M0 Strataflash + * + */ +#if 0 +#define CONFIG_SYS_FLASH_BASE 0x10000000 +#define CONFIG_FLASH_CFI_DRIVER 1 /* Use drivers/cfi_flash.c */ +#define CONFIG_SYS_FLASH_CFI 1 /* use CFI geometry data */ +#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE 1 /* ~10x faster writes */ +#define CONFIG_SYS_FLASH_PROTECTION 1 /* hardware sector protection */ +#define CONFIG_SYS_FLASH_EMPTY_INFO 1 /* flinfo 'E' for empty */ +#define CONFIG_SYS_FLASH_BANKS_LIST {CONFIG_SYS_FLASH_BASE} +#define CONFIG_SYS_MAX_FLASH_BANKS 1 /* max number of flash banks */ + +#define CONFIG_SYS_FLASH_CFI_WIDTH 2 +#define PHYS_FLASH_SIZE (128 << 20) +#define CONFIG_SYS_MAX_FLASH_SECT 512 /* max sectors on one chip */ +#endif + +#ifndef __ASSEMBLY__ +extern unsigned int boot_flash_base; +extern unsigned int boot_flash_off; +extern unsigned int boot_flash_sec; +extern unsigned int boot_flash_type; +#endif + +#endif /* __CONFIG_H */