From: Florian Fainelli <florian@openwrt.org>
Date: Wed, 11 Mar 2009 10:32:44 +0000 (+0000)
Subject: do not duplicate fifo_size, since RX and TX fifo sizes are the same, request_mem_regi... 
X-Git-Tag: reboot~24253
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=8065eb4a551f4c2874a761325a0a83ef6784784d;p=openwrt%2Fstaging%2Fpepe2k.git

do not duplicate fifo_size, since RX and TX fifo sizes are the same, request_mem_region on the registers

SVN-Revision: 14848
---

diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-spi.c b/target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-spi.c
index bfbda2b17f..1ba4aded3a 100644
--- a/target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-spi.c
+++ b/target/linux/brcm63xx/files/arch/mips/bcm63xx/dev-spi.c
@@ -50,15 +50,11 @@ int __init bcm63xx_spi_register(void)
 	spi_resources[1].start = bcm63xx_get_irq_number(IRQ_SPI);
 
 	/* Fill in platform data */
-	if (BCMCPU_IS_6338() || BCMCPU_IS_6348()) {
-		spi_pdata.msg_fifo_size = SPI_BCM_6338_SPI_MSG_DATA_SIZE;
-		spi_pdata.rx_fifo_size = SPI_BCM_6338_SPI_RX_DATA_SIZE;
-	}
+	if (BCMCPU_IS_6338() || BCMCPU_IS_6348())
+		spi_pdata.fifo_size = SPI_BCM_6338_SPI_MSG_DATA_SIZE;
 
-	if (BCMCPU_IS_6358()) {
-		spi_pdata.msg_fifo_size = SPI_BCM_6358_SPI_MSG_DATA_SIZE;
-		spi_pdata.rx_fifo_size =  SPI_BCM_6358_SPI_RX_DATA_SIZE;
-	}
+	if (BCMCPU_IS_6358())
+		spi_pdata.fifo_size = SPI_BCM_6358_SPI_MSG_DATA_SIZE;
 	
 	return platform_device_register(&bcm63xx_spi_device);
 }
diff --git a/target/linux/brcm63xx/files/drivers/spi/bcm63xx_spi.c b/target/linux/brcm63xx/files/drivers/spi/bcm63xx_spi.c
index d12ae99ce6..598196197e 100644
--- a/target/linux/brcm63xx/files/drivers/spi/bcm63xx_spi.c
+++ b/target/linux/brcm63xx/files/drivers/spi/bcm63xx_spi.c
@@ -48,8 +48,7 @@ struct bcm63xx_spi {
 
 	/* Platform data */
         u32			speed_hz;
-	unsigned		msg_fifo_size;
-	unsigned		rx_fifo_size;
+	unsigned		fifo_size;
 
 	/* Data buffers */
 	const unsigned char	*tx_ptr;
@@ -70,6 +69,7 @@ static void bcm63xx_spi_chipselect(struct spi_device *spi, int is_on)
 		val |= SPI_CMD_NOOP;
 	else if (is_on == BITBANG_CS_ACTIVE)
 		val |= (1 << spi->chip_select << SPI_CMD_DEVICE_ID_SHIFT);
+		
 	bcm_spi_writew(val, SPI_CMD);
 }
 
@@ -173,7 +173,7 @@ static void bcm63xx_spi_fill_tx_fifo(struct bcm63xx_spi *bs)
 
         /* Fill the Tx FIFO with as many bytes as possible */
 	tail = bcm_spi_readb(SPI_MSG_TAIL);
-        while ((tail < bs->msg_fifo_size) && (bs->remaining_bytes > 0)) {
+        while ((tail < bs->fifo_size) && (bs->remaining_bytes > 0)) {
                 if (bs->tx_ptr)
                         bcm_spi_writeb(*bs->tx_ptr++, SPI_MSG_DATA);
 		else
@@ -317,6 +317,12 @@ static int __init bcm63xx_spi_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, master);
         bs->pdev = pdev;
 
+	if (!request_mem_region(r->start,
+			r->end - r->start, PFX)) {
+		ret = -ENXIO;
+		goto out_free;
+	}
+
         bs->regs = ioremap_nocache(r->start, r->end - r->start);
 	if (!bs->regs) {
 		printk(KERN_ERR PFX " unable to ioremap regs\n");
@@ -325,8 +331,7 @@ static int __init bcm63xx_spi_probe(struct platform_device *pdev)
 	}
 	bs->irq = irq;
 	bs->clk = clk;
-	bs->msg_fifo_size = pdata->msg_fifo_size;
-	bs->rx_fifo_size = pdata->rx_fifo_size;
+	bs->fifo_size = pdata->fifo_size;
 
 	ret = request_irq(irq, bcm63xx_spi_interrupt, 0,
 				pdev->dev.bus_id, master);
@@ -344,8 +349,8 @@ static int __init bcm63xx_spi_probe(struct platform_device *pdev)
 	bcm_spi_writew(SPI_CMD_HARD_RESET, SPI_CMD);
 	bcm_spi_writeb(SPI_INTR_CLEAR_ALL, SPI_INT_MASK);
 	
-	dev_info(&pdev->dev, PFX " at 0x%08x (irq %d) %s\n",
-				r->start, irq, DRV_VER);
+	dev_info(&pdev->dev, PFX " at 0x%08x (irq %d, FIFOs size %d) v%s\n",
+				r->start, irq, bs->fifo_size, DRV_VER);
 
 	ret = spi_bitbang_start(&bs->bitbang);
 	if (ret) {
diff --git a/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm63xx_dev_spi.h b/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm63xx_dev_spi.h
index 879580fc9d..cfa79bf94b 100644
--- a/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm63xx_dev_spi.h
+++ b/target/linux/brcm63xx/files/include/asm-mips/mach-bcm63xx/bcm63xx_dev_spi.h
@@ -6,8 +6,7 @@
 int __init bcm63xx_spi_register(void);
 
 struct bcm63xx_spi_pdata {
-	unsigned int	msg_fifo_size;
-	unsigned int	rx_fifo_size;
+	unsigned int	fifo_size;
 	int		bus_num;
 	int		num_chipselect;
 	u32		speed_hz;