C674x CPUs has same peripherals(uart,emac,nand contoller) like sitara processors (am1705/am1707/omapl137/omapl138). In u-boot this peripheral known as davinci SOC, and placed in arch/arm/cpu/arm926ejs/davinci This patch allow compile davinci SOC code whith c674x CPU.
Reset code rewritten in C for compile not only for arm.
Signed-off-by: Dmitry Bondar bond@inmys.ru Cc: Tom Rini trini@ti.com --- Changes for v2: - reset_c.c rewritten with readl/writel.
--- Makefile | 1 + arch/arm/cpu/arm926ejs/davinci/Makefile | 5 ++++ arch/arm/cpu/arm926ejs/davinci/reset_c.c | 31 ++++++++++++++++++++++++++++++ mkconfig | 7 +++++- 4 files changed, 43 insertions(+), 1 deletions(-) create mode 100644 arch/arm/cpu/arm926ejs/davinci/reset_c.c
diff --git a/Makefile b/Makefile index 0197239..33e12cf 100644 --- a/Makefile +++ b/Makefile @@ -779,6 +779,7 @@ clobber: tidy @rm -f $(obj)arch/powerpc/cpu/mpc824x/bedbug_603e.c @rm -f $(obj)arch/powerpc/cpu/mpc83xx/ddr-gen?.c @rm -fr $(obj)include/asm/proc $(obj)include/asm/arch $(obj)include/asm + @rm -f ${obj}arch/c6x/cpu/c674x/davinci @rm -fr $(obj)include/generated @[ ! -d $(obj)nand_spl ] || find $(obj)nand_spl -name "*" -type l -print | xargs rm -f @[ ! -d $(obj)onenand_ipl ] || find $(obj)onenand_ipl -name "*" -type l -print | xargs rm -f diff --git a/arch/arm/cpu/arm926ejs/davinci/Makefile b/arch/arm/cpu/arm926ejs/davinci/Makefile index da7efac..54f096d 100644 --- a/arch/arm/cpu/arm926ejs/davinci/Makefile +++ b/arch/arm/cpu/arm926ejs/davinci/Makefile @@ -42,7 +42,12 @@ COBJS-$(CONFIG_SOC_DM365) += dm365_lowlevel.o COBJS-$(CONFIG_SOC_DA8XX) += da850_lowlevel.o endif
+ +ifeq ($(CPU),c674x) +COBJS-y += reset_c.o +else SOBJS = reset.o +endif
ifndef CONFIG_SKIP_LOWLEVEL_INIT SOBJS += lowlevel_init.o diff --git a/arch/arm/cpu/arm926ejs/davinci/reset_c.c b/arch/arm/cpu/arm926ejs/davinci/reset_c.c new file mode 100644 index 0000000..c1340e3 --- /dev/null +++ b/arch/arm/cpu/arm926ejs/davinci/reset_c.c @@ -0,0 +1,31 @@ +/* + * Processor reset using WDT. + * + * Copyright (C) 2012 Dmitry Bondar bond@inmys.ru + * Copyright (C) 2007 Sergey Kubushyn ksi@koi8.net + * + * This file is released under the terms of GPL v2 and any later version. + * See the file COPYING in the root directory of the source tree for details. +*/ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/timer_defs.h> + +void reset_cpu(unsigned long a) +{ + struct davinci_timer * const wdttimer = + (struct davinci_timer *)DAVINCI_TIMER1_BASE; + writel(0x08, &wdttimer->tgcr); + writel(readl(&wdttimer->tgcr) | 0x03, &wdttimer->tgcr); + writel(0, &wdttimer->tim12); + writel(0, &wdttimer->tim34); + writel(0, &wdttimer->prd12); + writel(0, &wdttimer->prd34); + writel(readl(&wdttimer->tcr) | 0x40, &wdttimer->tcr); + writel(readl(&wdttimer->wdtcr) | 0x4000, &wdttimer->wdtcr); + writel(0xa5c64000, &wdttimer->wdtcr); + writel(0xda7e4000, &wdttimer->wdtcr); + writel(0x4000, &wdttimer->wdtcr); + while(1); +} diff --git a/mkconfig b/mkconfig index daa1810..c80625e 100755 --- a/mkconfig +++ b/mkconfig @@ -119,7 +119,12 @@ rm -f asm/arch if [ -z "${soc}" ] ; then ln -s ${LNPREFIX}arch-${cpu} asm/arch else - ln -s ${LNPREFIX}arch-${soc} asm/arch + if [ "${arch}" == "c6x" -a "$soc" == "davinci" ]; then + ln -s ${SRCTREE}/arch/arm/include/asm/arch-davinci asm/arch + ln -s ${SRCTREE}/arch/arm/cpu/arm926ejs/davinci ${SRCTREE}/arch/c6x/cpu/c674x/davinci + else + ln -s ${LNPREFIX}arch-${soc} asm/arch + fi fi
if [ "${arch}" = "arm" ] ; then