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From: Jan Luebbe <jlu@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 06/10] omap: add SPI as a boot mode for xload
Date: Mon,  3 Sep 2012 13:46:01 +0200	[thread overview]
Message-ID: <1346672765-16162-7-git-send-email-jlu@pengutronix.de> (raw)
In-Reply-To: <1346672765-16162-1-git-send-email-jlu@pengutronix.de>

Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
---
 arch/arm/mach-omap/include/mach/xload.h |    1 +
 arch/arm/mach-omap/xload.c              |   27 +++++++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/arch/arm/mach-omap/include/mach/xload.h b/arch/arm/mach-omap/include/mach/xload.h
index 844b57f..c62912a 100644
--- a/arch/arm/mach-omap/include/mach/xload.h
+++ b/arch/arm/mach-omap/include/mach/xload.h
@@ -8,6 +8,7 @@ enum omap_boot_src {
 	OMAP_BOOTSRC_UNKNOWN,
 	OMAP_BOOTSRC_MMC1,
 	OMAP_BOOTSRC_NAND,
+	OMAP_BOOTSRC_SPI1,
 };
 
 enum omap_boot_src omap3_bootsrc(void);
diff --git a/arch/arm/mach-omap/xload.c b/arch/arm/mach-omap/xload.c
index 13024ab..1daa827 100644
--- a/arch/arm/mach-omap/xload.c
+++ b/arch/arm/mach-omap/xload.c
@@ -54,6 +54,29 @@ void *omap_xload_boot_mmc(void)
 	return buf;
 }
 
+void *omap_xload_boot_spi(int offset, int size)
+{
+	int ret;
+	void *to = xmalloc(size);
+	struct cdev *cdev;
+
+	devfs_add_partition("m25p0", offset, size, DEVFS_PARTITION_FIXED, "x");
+
+	cdev = cdev_open("x", O_RDONLY);
+	if (!cdev) {
+		printf("failed to open spi flash\n");
+		return NULL;
+	}
+
+	ret = cdev_read(cdev, to, size, 0, 0);
+	if (ret != size) {
+		printf("failed to read from spi flash\n");
+		return NULL;
+	}
+
+	return to;
+}
+
 enum omap_boot_src omap_bootsrc(void)
 {
 #if defined(CONFIG_ARCH_OMAP3)
@@ -82,6 +105,10 @@ int run_shell(void)
 		printf("booting from NAND\n");
 		func = omap_xload_boot_nand(SZ_128K, SZ_256K);
 		break;
+	case OMAP_BOOTSRC_SPI1:
+		printf("booting from SPI1\n");
+		func = omap_xload_boot_spi(SZ_128K, SZ_512K);
+		break;
 	}
 
 	if (!func) {
-- 
1.7.10.4


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  parent reply	other threads:[~2012-09-03 11:46 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-03 11:45 Prepare support for TI AM35xx Jan Luebbe
2012-09-03 11:45 ` [PATCH 01/10] drivers/nor/m25p80: add JEDEC ID for Micron/Numonyx SPI NOR flash Jan Luebbe
2012-09-03 11:45 ` [PATCH 02/10] drivers/nor/m25p80: add MEMGETINFO ioctl Jan Luebbe
2012-09-04  8:20   ` Sascha Hauer
2012-09-03 11:45 ` [PATCH 03/10] Makefile: add target to produce a SPL compatible uimage Jan Luebbe
2012-09-03 16:22   ` Jean-Christophe PLAGNIOL-VILLARD
2012-09-03 11:45 ` [PATCH 04/10] scripts: add tool to create image for SPI boot on AM35xx Jan Luebbe
2012-09-04  8:27   ` Sascha Hauer
2012-09-03 11:46 ` [PATCH 05/10] common: split out meminfo output and make it optional Jan Luebbe
2012-09-03 11:46 ` Jan Luebbe [this message]
2012-09-03 16:24   ` [PATCH 06/10] omap: add SPI as a boot mode for xload Jean-Christophe PLAGNIOL-VILLARD
2012-09-04  7:41     ` Jan Weitzel
2012-09-03 11:46 ` [PATCH 07/10] drivers/net/ksz8864rmn: add driver for Micrel KSZ8864RMN Ethernet Switch Jan Luebbe
2012-09-03 11:46 ` [PATCH 08/10] drivers/net: add driver for the EMAC device found in some TI SoCs Jan Luebbe
2012-09-03 16:27   ` Jean-Christophe PLAGNIOL-VILLARD
2012-09-04  8:42   ` Sascha Hauer
2012-09-03 11:46 ` [PATCH 09/10] omap3: allow enabling clocks for UART3, MMC1 and SPI Jan Luebbe
2012-09-04  8:48   ` Sascha Hauer
2012-09-05  9:28     ` Jan Lübbe
2012-09-03 11:46 ` [PATCH 10/10] drivers/spi: add driver for the Multichannel SPI controller found in TI SoCs Jan Luebbe
2012-09-03 16:32   ` Jean-Christophe PLAGNIOL-VILLARD
2012-09-04  8:58   ` Sascha Hauer
2012-09-05  9:20     ` Jan Lübbe

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