shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 11:26:02 +09:00
Code Issues Packages Projects Releases Wiki Activity

drivers: rkflash: Support NOR Flash to init MTD part list by default partition.

Browse Source 
Change-Id: I108c6ea704307221a58e3a7cdf4d6dc83b153437
Signed-off-by: Dingqiang Lin <jon.lin@rock-chips.com>
This commit is contained in:
Dingqiang Lin
2018-10-16 16:43:46 +08:00
committed by Tao Huang
parent 37184f54fe
commit fa8683a467
1 changed files with 26 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/rkflash/sfc_nor_mtd.c
View File

@@ -156,6 +156,17 @@ static int sfc_read_mtd(struct mtd_info *mtd, loff_t from, size_t len,
return 0;
}
/*
* if not support rk_partition and partition is confirmed, you can define
* strust def_nor_part by adding new partition like following example:
* {"u-boot", 0x1000 * 512, 0x2000 * 512},
* Note.
* 1. New partition format {name. size, offset}
* 2. Unit:Byte
* 3. Last partition 'size' can be set 0xFFFFFFFFF to fully user left space.
*/
struct mtd_partition def_nor_part[] = {};
int sfc_nor_mtd_init(struct SFNOR_DEV *p_dev)
{
int ret, i, part_num = 0;
@@ -204,13 +215,24 @@ int sfc_nor_mtd_init(struct SFNOR_DEV *p_dev)
(u64)g_part->part[i].ui_pt_sz << 9;
nor_parts[i].mask_flags = 0;
}
} else {
part_num = ARRAY_SIZE(def_nor_part);
for (i = 0; i < part_num; i++) {
nor_parts[i].name =
kstrdup(def_nor_part[i].name,
GFP_KERNEL);
if (def_nor_part[i].size == 0xFFFFFFFF)
def_nor_part[i].size = (capacity << 9) -
def_nor_part[i].offset;
nor_parts[i].offset =
def_nor_part[i].offset;
nor_parts[i].size =
def_nor_part[i].size;
nor_parts[i].mask_flags = 0;
}
}
}
kfree(g_part);
if (part_num == 0) {
ret = -1;
goto free_dma_buf;
}
ret = mtd_device_register(&p_dev->mtd, nor_parts, part_num);
if (ret != 0)
goto free_dma_buf;