From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from 18.mo5.mail-out.ovh.net ([178.33.45.10] helo=mo5.mail-out.ovh.net) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TxEcU-0003Nw-80 for barebox@lists.infradead.org; Mon, 21 Jan 2013 10:28:57 +0000 Received: from mail609.ha.ovh.net (b7.ovh.net [213.186.33.57]) by mo5.mail-out.ovh.net (Postfix) with SMTP id 0BE9FFFA85C for ; Mon, 21 Jan 2013 11:38:32 +0100 (CET) From: Jean-Christophe PLAGNIOL-VILLARD Date: Mon, 21 Jan 2013 11:27:19 +0100 Message-Id: <1358764040-10690-9-git-send-email-plagnioj@jcrosoft.com> In-Reply-To: <1358764040-10690-1-git-send-email-plagnioj@jcrosoft.com> References: <20130121102319.GE26329@game.jcrosoft.org> <1358764040-10690-1-git-send-email-plagnioj@jcrosoft.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 09/10] at91: add bootstrap version To: barebox@lists.infradead.org This will allow to boot from NAND/MMC and others. This version of bootstrap is a non shell version of barebox compressed by the pbl. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD --- arch/arm/mach-at91/Kconfig | 5 ++ arch/arm/mach-at91/Makefile | 1 + arch/arm/mach-at91/bootstrap.c | 95 +++++++++++++++++++++++++++ arch/arm/mach-at91/include/mach/bootstrap.h | 28 ++++++++ 4 files changed, 129 insertions(+) create mode 100644 arch/arm/mach-at91/bootstrap.c create mode 100644 arch/arm/mach-at91/include/mach/bootstrap.h diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index 101b2b7..f2d434b 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -494,4 +494,9 @@ config CMD_AT91_BOOT_TEST endif +config AT91_BOOTSTRAP + bool "at91 bootstrap" + depends on MACH_HAS_LOWLEVEL_INIT + select BOOTSTRAP + endif diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index 4404d23..634b160 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -1,6 +1,7 @@ obj-y += setup.o clock.o gpio.o obj-$(CONFIG_CMD_AT91_BOOT_TEST) += boot_test_cmd.o +obj-$(CONFIG_AT91_BOOTSTRAP) += bootstrap.o lowlevel_init-y = at91sam926x_lowlevel_init.o lowlevel_init-$(CONFIG_ARCH_AT91RM9200) = at91rm9200_lowlevel_init.o obj-$(CONFIG_MACH_DO_LOWLEVEL_INIT) += $(lowlevel_init-y) diff --git a/arch/arm/mach-at91/bootstrap.c b/arch/arm/mach-at91/bootstrap.c new file mode 100644 index 0000000..657e3cc --- /dev/null +++ b/arch/arm/mach-at91/bootstrap.c @@ -0,0 +1,95 @@ +/* + * Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD + * + * Under GPLv2 + */ + +#include +#include +#include +#include +#include +#include + +#if defined(CONFIG_MCI_ATMEL) +#define is_mmc() 1 +#else +#define is_mmc() 0 +#endif + +#ifdef CONFIG_NAND_ATMEL +#define is_nand() 1 +#else +#define is_nand() 0 +#endif + +#ifdef CONFIG_MTD_M25P80 +#define is_m25p80() 1 +#else +#define is_m25p80() 0 +#endif + +#ifdef CONFIG_MTD_DATAFLASH +#define is_dataflash() 1 +#else +#define is_dataflash() 0 +#endif + +static void boot_seq(bool is_barebox) +{ + char *name = is_barebox ? "barebox" : "unknown"; + int (*func)(void) = NULL; + + if (is_m25p80()) { + func = bootstrap_board_read_m25p80(); + printf("Boot %s from m25p80\n", name); + bootstrap_boot(func, is_barebox); + bootstrap_err("... failed\n"); + free(func); + } + if (is_dataflash()) { + printf("Boot %s from dataflash\n", name); + func = bootstrap_board_read_dataflash(); + bootstrap_boot(func, is_barebox); + bootstrap_err("... failed\n"); + free(func); + } + if (is_nand()) { + printf("Boot %s from nand\n", name); + func = bootstrap_read_devfs("nand0", true, SZ_128K, SZ_256K, SZ_1M); + bootstrap_boot(func, is_barebox); + bootstrap_err("... failed\n"); + free(func); + } +} + +static int at91_bootstrap(void) +{ + int (*func)(void) = NULL; + + if (is_mmc()) { + printf("Boot from mmc\n"); + func = bootstrap_read_disk("disk0.0"); + bootstrap_boot(func, false); + bootstrap_err("... failed\n"); + free(func); + } + + /* First only bootstrap_boot a barebox */ + boot_seq(true); + /* Second bootstrap_boot any */ + boot_seq(false); + + bootstrap_err("bootstrap_booting failed\n"); + while (1); + + return 0; +} + +static int at91_set_bootstrap(void) +{ + barebox_main = at91_bootstrap; + + return 0; +} +late_initcall(at91_set_bootstrap); diff --git a/arch/arm/mach-at91/include/mach/bootstrap.h b/arch/arm/mach-at91/include/mach/bootstrap.h new file mode 100644 index 0000000..a3d19dd --- /dev/null +++ b/arch/arm/mach-at91/include/mach/bootstrap.h @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD + * + * Under GPLv2 + */ + +#ifndef __MACH_BOOTSTRAP_H__ +#define __MACH_BOOTSTRAP_H__ + +#ifdef CONFIG_MTD_M25P80 +void * bootstrap_board_read_m25p80(void); +#else +static inline void * bootstrap_board_read_m25p80(void) +{ + return NULL; +} +#endif + +#ifdef CONFIG_MTD_DATAFLASH +void * bootstrap_board_read_dataflash(void); +#else +static inline void * bootstrap_board_read_dataflash(void) +{ + return NULL; +} +#endif + +#endif /* __MACH_BOOTSTRAP_H__ */ -- 1.7.10.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox