Clean up a25.c, at25.c, spi25.c

- introduce spi_prettyprint_status_register_atmel_at25_wpen()
- use spi_prettyprint_status_register_bit() where possible
- generify spi_prettyprint_status_register_bp3210 and use it in at25.c too

Corresponding to flashrom svn r1560.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
diff --git a/at25.c b/at25.c
index ec9b4b6..8891e2b 100644
--- a/at25.c
+++ b/at25.c
@@ -23,6 +23,12 @@
 
 /* Prettyprint the status register. Works for Atmel A25/A26 series. */
 
+static void spi_prettyprint_status_register_atmel_at25_wpen(uint8_t status)
+{
+	msg_cdbg("Chip status register: Write Protect Enable (WPEN) "
+		 "is %sset\n", (status & (1 << 7)) ? "" : "not ");
+}
+
 static void spi_prettyprint_status_register_atmel_at25_srpl(uint8_t status)
 {
 	msg_cdbg("Chip status register: Sector Protection Register Lock (SRPL) "
@@ -91,10 +97,7 @@
 	spi_prettyprint_status_register_bit(status, 6);
 	spi_prettyprint_status_register_atmel_at25_epewpp(status);
 	spi_prettyprint_status_register_bit(status, 3);
-	msg_cdbg("Chip status register: Block Protect 0 (BP0) is "
-		 "%sset, %s sectors are protected\n",
-		 (status & (1 << 2)) ? "" : "not ",
-		 (status & (1 << 2)) ? "all" : "no");
+	spi_prettyprint_status_register_bp(status, 0);
 	spi_prettyprint_status_register_welwip(status);
 	return 0;
 }
@@ -106,14 +109,12 @@
 	status = spi_read_status_register(flash);
 	msg_cdbg("Chip status register is %02x\n", status);
 
-	msg_cdbg("Chip status register: Status Register Write Protect (WPEN) "
-		 "is %sset\n", (status & (1 << 7)) ? "" : "not ");
+	spi_prettyprint_status_register_atmel_at25_wpen(status);
 	msg_cdbg("Chip status register: Bit 6 / Block Protect 4 (BP4) is "
 		 "%sset\n", (status & (1 << 6)) ? "" : "not ");
 	msg_cdbg("Chip status register: Bit 5 / Block Protect 3 (BP3) is "
 		 "%sset\n", (status & (1 << 5)) ? "" : "not ");
-	msg_cdbg("Chip status register: Bit 4 is "
-		 "%sset\n", (status & (1 << 4)) ? "" : "not ");
+	spi_prettyprint_status_register_bit(status, 4);
 	msg_cdbg("Chip status register: Bit 3 / Block Protect 1 (BP1) is "
 		 "%sset\n", (status & (1 << 3)) ? "" : "not ");
 	msg_cdbg("Chip status register: Bit 2 / Block Protect 0 (BP0) is "
@@ -130,18 +131,8 @@
 	status = spi_read_status_register(flash);
 	msg_cdbg("Chip status register is %02x\n", status);
 
-	msg_cdbg("Chip status register: Status Register Write Protect (WPEN) "
-		 "is %sset\n", (status & (1 << 7)) ? "" : "not ");
-	msg_cdbg("Chip status register: Bit 6 / Block Protect 4 (BP4) is "
-		 "%sset\n", (status & (1 << 6)) ? "" : "not ");
-	msg_cdbg("Chip status register: Bit 5 / Block Protect 3 (BP3) is "
-		 "%sset\n", (status & (1 << 5)) ? "" : "not ");
-	msg_cdbg("Chip status register: Bit 4 / Block Protect 2 (BP2) is "
-		 "%sset\n", (status & (1 << 4)) ? "" : "not ");
-	msg_cdbg("Chip status register: Bit 3 / Block Protect 1 (BP1) is "
-		 "%sset\n", (status & (1 << 3)) ? "" : "not ");
-	msg_cdbg("Chip status register: Bit 2 / Block Protect 0 (BP0) is "
-		 "%sset\n", (status & (1 << 2)) ? "" : "not ");
+	spi_prettyprint_status_register_atmel_at25_wpen(status);
+	spi_prettyprint_status_register_bp(status, 4);
 	/* FIXME: Pretty-print detailed sector protection status. */
 	spi_prettyprint_status_register_welwip(status);
 	return 0;