diff options
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv7/Makefile | 7 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/spl.c | 82 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap-common/u-boot-spl.lds | 62 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap4/Makefile | 5 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap4/board.c | 7 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/omap4/clocks.c | 33 |
7 files changed, 198 insertions, 2 deletions
diff --git a/arch/arm/cpu/armv7/Makefile b/arch/arm/cpu/armv7/Makefile index 299792a..92a5a96 100644 --- a/arch/arm/cpu/armv7/Makefile +++ b/arch/arm/cpu/armv7/Makefile @@ -26,7 +26,12 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(CPU).o START := start.o -COBJS := cpu.o cache_v7.o + +ifndef CONFIG_SPL_BUILD +COBJS += cache_v7.o +COBJS += cpu.o +endif + COBJS += syslib.o SRCS := $(START:.o=.S) $(COBJS:.o=.c) diff --git a/arch/arm/cpu/armv7/omap-common/Makefile b/arch/arm/cpu/armv7/omap-common/Makefile index 8f698f8..0708796 100644 --- a/arch/arm/cpu/armv7/omap-common/Makefile +++ b/arch/arm/cpu/armv7/omap-common/Makefile @@ -30,6 +30,10 @@ SOBJS := reset.o COBJS := timer.o COBJS += utils.o +ifdef CONFIG_SPL_BUILD +COBJS += spl.o +endif + SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/arch/arm/cpu/armv7/omap-common/spl.c b/arch/arm/cpu/armv7/omap-common/spl.c new file mode 100644 index 0000000..b201543 --- /dev/null +++ b/arch/arm/cpu/armv7/omap-common/spl.c @@ -0,0 +1,82 @@ +/* + * (C) Copyright 2010 + * Texas Instruments, <www.ti.com> + * + * Aneesh V <aneesh@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/u-boot.h> +#include <asm/arch/sys_proto.h> +#include <timestamp_autogenerated.h> +#include <version_autogenerated.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* Define global data structure pointer to it*/ +static gd_t gdata __attribute__ ((section(".data"))); +static bd_t bdata __attribute__ ((section(".data"))); + +inline void hang(void) +{ + puts("### ERROR ### Please RESET the board ###\n"); + for (;;) + ; +} + +void board_init_f(ulong dummy) +{ + /* + * We call relocate_code() with relocation target same as the + * CONFIG_SYS_SPL_TEXT_BASE. This will result in relocation getting + * skipped. Instead, only .bss initialization will happen. That's + * all we need + */ + debug(">>board_init_f()\n"); + relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE); +} + +void board_init_r(gd_t *id, ulong dummy) +{ + for (;;) + ; +} + +void preloader_console_init(void) +{ + const char *u_boot_rev = U_BOOT_VERSION; + char rev_string_buffer[50]; + + gd = &gdata; + gd->bd = &bdata; + gd->flags |= GD_FLG_RELOC; + gd->baudrate = CONFIG_BAUDRATE; + + setup_clocks_for_console(); + serial_init(); /* serial communications setup */ + + /* Avoid a second "U-Boot" coming from this string */ + u_boot_rev = &u_boot_rev[7]; + + printf("\nU-Boot SPL %s (%s - %s)\n", u_boot_rev, U_BOOT_DATE, + U_BOOT_TIME); + omap_rev_string(rev_string_buffer); + printf("Texas Instruments %s\n", rev_string_buffer); +} diff --git a/arch/arm/cpu/armv7/omap-common/u-boot-spl.lds b/arch/arm/cpu/armv7/omap-common/u-boot-spl.lds new file mode 100644 index 0000000..8867e06 --- /dev/null +++ b/arch/arm/cpu/armv7/omap-common/u-boot-spl.lds @@ -0,0 +1,62 @@ +/* + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> + * + * (C) Copyright 2010 + * Texas Instruments, <www.ti.com> + * Aneesh V <aneesh@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 + */ + +MEMORY { .sram : ORIGIN = CONFIG_SPL_TEXT_BASE,\ + LENGTH = CONFIG_SPL_MAX_SIZE } +MEMORY { .sdram : ORIGIN = CONFIG_SPL_BSS_START_ADDR, \ + LENGTH = CONFIG_SPL_BSS_MAX_SIZE } + +OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) +SECTIONS +{ + .text : + { + __start = .; + arch/arm/cpu/armv7/start.o (.text) + *(.text*) + } >.sram + + . = ALIGN(4); + .rodata : { *(SORT_BY_ALIGNMENT(.rodata*)) } >.sram + + . = ALIGN(4); + .data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram + . = ALIGN(4); + __image_copy_end = .; + _end = .; + + .bss : + { + . = ALIGN(4); + __bss_start = .; + *(.bss*) + . = ALIGN(4); + __bss_end__ = .; + } >.sdram +} diff --git a/arch/arm/cpu/armv7/omap4/Makefile b/arch/arm/cpu/armv7/omap4/Makefile index e1ccd68..e7ee0b8 100644 --- a/arch/arm/cpu/armv7/omap4/Makefile +++ b/arch/arm/cpu/armv7/omap4/Makefile @@ -30,9 +30,12 @@ SOBJS += lowlevel_init.o COBJS += board.o COBJS += clocks.o COBJS += emif.o -COBJS += mem.o COBJS += sdram_elpida.o + +ifndef CONFIG_SPL_BUILD +COBJS += mem.o COBJS += sys_info.o +endif SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS)) diff --git a/arch/arm/cpu/armv7/omap4/board.c b/arch/arm/cpu/armv7/omap4/board.c index 786c239..54dd509 100644 --- a/arch/arm/cpu/armv7/omap4/board.c +++ b/arch/arm/cpu/armv7/omap4/board.c @@ -155,7 +155,14 @@ void s_init(void) init_omap4_revision(); watchdog_init(); set_mux_conf_regs(); +#ifdef CONFIG_SPL_BUILD + preloader_console_init(); +#endif prcm_init(); +#ifdef CONFIG_SPL_BUILD + /* For regular u-boot sdram_init() is called from dram_init() */ + sdram_init(); +#endif } /* diff --git a/arch/arm/cpu/armv7/omap4/clocks.c b/arch/arm/cpu/armv7/omap4/clocks.c index e8d3a52..f1e233a 100644 --- a/arch/arm/cpu/armv7/omap4/clocks.c +++ b/arch/arm/cpu/armv7/omap4/clocks.c @@ -791,6 +791,39 @@ void lock_dpll(u32 *const base) wait_for_lock(base); } +void setup_clocks_for_console(void) +{ + /* Do not add any spl_debug prints in this function */ + clrsetbits_le32(&prcm->cm_l4per_clkstctrl, CD_CLKCTRL_CLKTRCTRL_MASK, + CD_CLKCTRL_CLKTRCTRL_SW_WKUP << + CD_CLKCTRL_CLKTRCTRL_SHIFT); + + /* Enable all UARTs - console will be on one of them */ + clrsetbits_le32(&prcm->cm_l4per_uart1_clkctrl, + MODULE_CLKCTRL_MODULEMODE_MASK, + MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << + MODULE_CLKCTRL_MODULEMODE_SHIFT); + + clrsetbits_le32(&prcm->cm_l4per_uart2_clkctrl, + MODULE_CLKCTRL_MODULEMODE_MASK, + MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << + MODULE_CLKCTRL_MODULEMODE_SHIFT); + + clrsetbits_le32(&prcm->cm_l4per_uart3_clkctrl, + MODULE_CLKCTRL_MODULEMODE_MASK, + MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << + MODULE_CLKCTRL_MODULEMODE_SHIFT); + + clrsetbits_le32(&prcm->cm_l4per_uart3_clkctrl, + MODULE_CLKCTRL_MODULEMODE_MASK, + MODULE_CLKCTRL_MODULEMODE_SW_EXPLICIT_EN << + MODULE_CLKCTRL_MODULEMODE_SHIFT); + + clrsetbits_le32(&prcm->cm_l4per_clkstctrl, CD_CLKCTRL_CLKTRCTRL_MASK, + CD_CLKCTRL_CLKTRCTRL_HW_AUTO << + CD_CLKCTRL_CLKTRCTRL_SHIFT); +} + void prcm_init(void) { switch (omap4_hw_init_context()) { |