[flashrom] [PATCH] Convert SPI write status register to multicommand

[Carl-Daniel Hailfinger]

Convert SPI write status register to multicommand infrastructure.

Signed-off-by: Carl-Daniel Hailfinger

Index: flashrom-spi_multicommand_statusreg/spi.c
===================================================================
--- flashrom-spi_multicommand_statusreg/spi.c	(Revision 652)
+++ flashrom-spi_multicommand_statusreg/spi.c	(Arbeitskopie)
@@ -690,21 +690,7 @@
    result = spi_send_command(sizeof(cmd), JEDEC_EWSR_INSIZE, cmd, NULL);

if (result)
-		printf_debug("%s failed", __func__);
-	if (result == SPI_INVALID_OPCODE) {
-		switch (spi_controller) {
-		case SPI_CONTROLLER_ICH7:
-		case SPI_CONTROLLER_ICH9:
-		case SPI_CONTROLLER_VIA:
-			printf_debug(" due to SPI master limitation, ignoring"
-				     " and hoping it will be run as PREOP\n");
-			return 0;
-		default:
-			break;
-		}
-	}
-	if (result)
-		printf_debug("\n");
+		printf_debug("%s failed\n", __func__);

return result;
 }
@@ -715,11 +701,30 @@
  */
 int spi_write_status_register(int status)
 {
-	const unsigned char cmd[JEDEC_WRSR_OUTSIZE] =
-	    { JEDEC_WRSR, (unsigned char)status };
+	int result;
+	struct spi_command spicommands[] = {
+	{
+		.writecnt	= JEDEC_EWSR_OUTSIZE,
+		.writearr	= (const unsigned char[]){ JEDEC_EWSR },
+		.readcnt	= 0,
+		.readarr	= NULL,
+	}, {
+		.writecnt	= JEDEC_WRSR_OUTSIZE,
+		.writearr	= (const unsigned char[]){ JEDEC_WRSR, (unsigned char) status },
+		.readcnt	= 0,
+		.readarr	= NULL,
+	}, {
+		.writecnt	= 0,
+		.writearr	= NULL,
+		.readcnt	= 0,
+		.readarr	= NULL,
+	}};

-	/* Send WRSR (Write Status Register) */
-	return spi_send_command(sizeof(cmd), 0, cmd, NULL);
+	result = spi_send_multicommand(spicommands);
+	if (result) {
+		printf_debug("%s failed during command execution\n", __func__);
+	}
+	return result;
 }

int spi_byte_program(int addr, uint8_t byte)
@@ -746,7 +751,6 @@
    result = spi_send_multicommand(spicommands);
    if (result) {
    	printf_debug("%s failed during command execution\n", __func__);
-		return result;
    }
    return result;
 }
@@ -793,7 +797,6 @@
    result = spi_send_multicommand(spicommands);
    if (result) {
    	printf_debug("%s failed during command execution\n", __func__);
-		return result;
    }
    return result;
 }
@@ -807,11 +810,6 @@
    /* If there is block protection in effect, unprotect it first. */
    if ((status & 0x3c) != 0) {
    	printf_debug("Some block protection in effect, disabling\n");
-		result = spi_write_status_enable();
-		if (result) {
-			printf_debug("spi_write_status_enable failed\n");
-			return result;
-		}
    	result = spi_write_status_register(status & ~0x3c);
    	if (result) {
    		printf_debug("spi_write_status_register failed\n");