[PATCH 02/14] at91sam9263ek: add runtime nor detection

Jean-Christophe PLAGNIOL-VILLARD plagnioj at jcrosoft.com
Mon Mar 12 07:17:50 EDT 2012


most of the board does not have a nor soldered

update the nand partition table to boot from nand with bootstrap

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj at jcrosoft.com>
---
 arch/arm/boards/at91sam9263ek/env/config |    6 +++---
 arch/arm/boards/at91sam9263ek/init.c     |   23 ++++++++++++++---------
 2 files changed, 17 insertions(+), 12 deletions(-)

diff --git a/arch/arm/boards/at91sam9263ek/env/config b/arch/arm/boards/at91sam9263ek/env/config
index e189b8e..388a939 100644
--- a/arch/arm/boards/at91sam9263ek/env/config
+++ b/arch/arm/boards/at91sam9263ek/env/config
@@ -25,10 +25,10 @@ kernelimage=uImage
 #kernelimage=Image.lzo
 
 nand_device=atmel_nand
-nand_parts="256k(barebox)ro,128k(bareboxenv),1536k(kernel),-(root)"
-rootfs_mtdblock_nand=3
+nand_parts="128k(at91bootstrap),256k(barebox)ro,128k(bareboxenv),128k(bareboxenv2),4M(kernel),120M(rootfs),-(data)"
+rootfs_mtdblock_nand=5
 
-nor_parts="256k(barebox),64k(bareboxenv),1536k(kernel),-(root)"
+nor_parts="256k(barebox),64k(bareboxenv),4M(kernel),-(root)"
 
 autoboot_timeout=3
 
diff --git a/arch/arm/boards/at91sam9263ek/init.c b/arch/arm/boards/at91sam9263ek/init.c
index d7b9afe..1c52acc 100644
--- a/arch/arm/boards/at91sam9263ek/init.c
+++ b/arch/arm/boards/at91sam9263ek/init.c
@@ -32,6 +32,7 @@
 #include <io.h>
 #include <asm/hardware.h>
 #include <nand.h>
+#include <sizes.h>
 #include <linux/mtd/nand.h>
 #include <mach/at91_pmc.h>
 #include <mach/board.h>
@@ -129,15 +130,19 @@ static int at91sam9263ek_devices_init(void)
 	add_cfi_flash_device(0, AT91_CHIPSELECT_0, 8 * 1024 * 1024, 0);
 	ek_add_device_mci();
 
-#if defined(CONFIG_DRIVER_CFI) || defined(CONFIG_DRIVER_CFI_OLD)
-	devfs_add_partition("nor0", 0x00000, 0x40000, PARTITION_FIXED, "self");
-	devfs_add_partition("nor0", 0x40000, 0x20000, PARTITION_FIXED, "env0");
-#elif defined(CONFIG_NAND_ATMEL)
-	devfs_add_partition("nand0", 0x00000, 0x80000, PARTITION_FIXED, "self_raw");
-	dev_add_bb_dev("self_raw", "self0");
-	devfs_add_partition("nand0", 0x80000, 0x20000, PARTITION_FIXED, "env_raw");
-	dev_add_bb_dev("env_raw", "env0");
-#endif
+	if (IS_ENABLED(CONFIG_DRIVER_CFI) && cdev_by_name("nor0")) {
+		devfs_add_partition("nor0", 0x00000, 0x40000, PARTITION_FIXED, "self");
+		devfs_add_partition("nor0", 0x40000, 0x20000, PARTITION_FIXED, "env0");
+	} else if (IS_ENABLED(CONFIG_NAND_ATMEL)) {
+		devfs_add_partition("nand0", 0x00000, SZ_128K, PARTITION_FIXED, "at91bootstrap_raw");
+		dev_add_bb_dev("at91bootstrap_raw", "at91bootstrap");
+		devfs_add_partition("nand0", SZ_128K, SZ_256K, PARTITION_FIXED, "self_raw");
+		dev_add_bb_dev("self_raw", "self0");
+		devfs_add_partition("nand0", SZ_256K + SZ_128K, SZ_128K, PARTITION_FIXED, "env_raw");
+		dev_add_bb_dev("env_raw", "env0");
+		devfs_add_partition("nand0", SZ_512K, SZ_128K, PARTITION_FIXED, "env_raw1");
+		dev_add_bb_dev("env_raw1", "env1");
+	}
 
 	armlinux_set_bootparams((void *)(AT91_CHIPSELECT_1 + 0x100));
 	armlinux_set_architecture(MACH_TYPE_AT91SAM9263EK);
-- 
1.7.7




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