@@ -9,6 +9,7 @@
#include <common.h>
#include <nand.h>
#include <errno.h>
+#include <linux/mtd/concat.h>
#ifndef CONFIG_SYS_NAND_BASE_LIST
#define CONFIG_SYS_NAND_BASE_LIST { CONFIG_SYS_NAND_BASE }
@@ -92,6 +93,44 @@ static void nand_init_chip(int i)
}
#endif
+#ifdef CONFIG_MTD_CONCAT
+static void create_mtd_concat(void)
+{
+ struct mtd_info *nand_info_list[CONFIG_SYS_MAX_NAND_DEVICE];
+ int nand_devices_found = 0;
+ int i;
+
+ for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) {
+ if (nand_info[i] != NULL) {
+ nand_info_list[nand_devices_found] = nand_info[i];
+ nand_devices_found++;
+ }
+ }
+ if (nand_devices_found > 1) {
+ struct mtd_info *mtd;
+ char c_mtd_name[16];
+
+ /*
+ * We detected multiple devices. Concatenate them together.
+ */
+ sprintf(c_mtd_name, "nand%d", nand_devices_found);
+ mtd = mtd_concat_create(nand_info_list, nand_devices_found,
+ c_mtd_name);
+
+ if (mtd == NULL)
+ return;
+
+ nand_register(nand_devices_found, mtd);
+ }
+
+ return;
+}
+#else
+static void create_mtd_concat(void)
+{
+}
+#endif
+
void nand_init(void)
{
#ifdef CONFIG_SYS_NAND_SELF_INIT
@@ -112,4 +151,6 @@ void nand_init(void)
board_nand_select_device(mtd_to_nand(nand_info[nand_curr_device]),
nand_curr_device);
#endif
+
+ create_mtd_concat();
}
add for nand devices mtd concat support. Generic MTD concat support is already ported to mainline, and used in the cfi_mtd driver. This patch adds it similiar for nand devices. Signed-off-by: Heiko Schocher <hs@denx.de> --- Changes in v2: - add comments from Scott Wood: - move c_mtd_name from file scope to local - use nand_info instead mtd_nand_list - use oss@buserror.net as email address for Scott - rebase to current mainline commit id: e4a94ce4ac77396b181663c0493c50bc2d5b9143 and the "mtd: nand Sync with Linux v4.6" patches: [U-Boot,1/7] mtd: nand: Remove jz4740 driver http://patchwork.ozlabs.org/patch/627922/ [U-Boot,2/7] mtd: nand: Remove docg4 driver and palmtreo680 flashing tool http://patchwork.ozlabs.org/patch/627924/ [U-Boot,3/7] mtd: nand: Remove nand_info_t typedef http://patchwork.ozlabs.org/patch/627923/ [U-Boot,4/7] nand: Embed mtd_info in struct nand_chip http://patchwork.ozlabs.org/patch/627925/ [U-Boot,5/7] mtd: nand: Add+use mtd_to/from_nand and nand_get/set_controller_data http://patchwork.ozlabs.org/patch/627926/ [U-Boot,6/7] mtd: nand: Add page argument to write_page() etc. http://patchwork.ozlabs.org/patch/627927/ [U-Boot,7/7] mtd: nand: Sync with Linux v4.6 http://patchwork.ozlabs.org/patch/627928/ Series-changes: 3 - add comment from Scott Wood build an array for none NULL-devices. While at it move the nand mtd concat code into a seperate function. - rebase to "Prepare v2016.07-rc1" b104b3dc1dd90cdbf67ccf3c51b06e4f1592fe91 drivers/mtd/nand/nand.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+)