1 files changed, 64 insertions, 0 deletions
diff --git a/target/linux/ath79/patches-4.19/403-mtd_fix_cfi_cmdset_0002_status_check.patch b/target/linux/ath79/patches-4.19/403-mtd_fix_cfi_cmdset_0002_status_check.patch
new file mode 100644
index 0000000000..eeda620957
--- /dev/null
+++ b/target/linux/ath79/patches-4.19/403-mtd_fix_cfi_cmdset_0002_status_check.patch
@@ -0,0 +1,64 @@
+--- a/drivers/mtd/chips/cfi_cmdset_0002.c
++++ b/drivers/mtd/chips/cfi_cmdset_0002.c
+@@ -1634,8 +1634,8 @@ static int __xipram do_write_oneword(str
+ 			break;
+ 		}
+ 
+-		if (chip_ready(map, adr))
+-			break;
++		if (chip_good(map, adr, datum))
++			goto enable_xip;
+ 
+ 		/* Latency issues. Drop the lock, wait a while and retry */
+ 		UDELAY(map, chip, adr, 1);
+@@ -1651,6 +1651,8 @@ static int __xipram do_write_oneword(str
+ 
+ 		ret = -EIO;
+ 	}
++
++ enable_xip:
+ 	xip_enable(map, chip, adr);
+  op_done:
+ 	if (mode == FL_OTP_WRITE)
+@@ -2229,7 +2231,6 @@ static int cfi_amdstd_panic_write(struct
+ 	return 0;
+ }
+ 
+-
+ /*
+  * Handle devices with one erase region, that only implement
+  * the chip erase command.
+@@ -2297,7 +2298,7 @@ static int __xipram do_erase_chip(struct
+ 		}
+ 
+ 		if (chip_good(map, adr, map_word_ff(map)))
+-			break;
++			goto op_done;
+ 
+ 		if (time_after(jiffies, timeo)) {
+ 			printk(KERN_WARNING "MTD %s(): software timeout\n",
+@@ -2321,6 +2322,7 @@ static int __xipram do_erase_chip(struct
+ 		}
+ 	}
+ 
++ op_done:
+ 	chip->state = FL_READY;
+ 	xip_enable(map, chip, adr);
+ 	DISABLE_VPP(map);
+@@ -2393,7 +2395,7 @@ static int __xipram do_erase_oneblock(st
+ 		}
+ 
+ 		if (chip_good(map, adr, map_word_ff(map)))
+-			break;
++			goto op_done;
+ 
+ 		if (time_after(jiffies, timeo)) {
+ 			printk(KERN_WARNING "MTD %s(): software timeout\n",
+@@ -2417,6 +2419,7 @@ static int __xipram do_erase_oneblock(st
+ 		}
+ 	}
+ 
++ op_done:
+ 	chip->state = FL_READY;
+ 	xip_enable(map, chip, adr);
+ 	DISABLE_VPP(map);