diff options
| author | Andrew Victor <andrew@sanpeople.com> | 2007-02-07 16:40:44 +0100 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-02-07 18:50:53 -0500 |
| commit | 0cc8674f2be3078fb586add1900c7835c977f384 (patch) | |
| tree | a27d665a8e859755f2c8974e5e90e83f6fea85c2 | |
| parent | 683349a3fae4896d91b1fe507ebbadb866587cd8 (diff) | |
| download | linux-0cc8674f2be3078fb586add1900c7835c977f384.tar.gz linux-0cc8674f2be3078fb586add1900c7835c977f384.tar.bz2 linux-0cc8674f2be3078fb586add1900c7835c977f384.zip | |
AT91: MACB support
The Atmel MACB Ethernet peripheral is also integrated in the AT91SAM9260
and AT91SAM9263 processors. The differences from the AVR32 version are:
* Single peripheral clock.
* MII/RMII selection bit is inverted.
* Clock enable bit.
Original patch from Patrice Vilchez.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
| -rw-r--r-- | drivers/net/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/net/macb.c | 25 | ||||
| -rw-r--r-- | drivers/net/macb.h | 8 |
3 files changed, 31 insertions, 4 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index a005517a4184..ad92b6a76ee6 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -190,7 +190,7 @@ config MII config MACB tristate "Atmel MACB support" - depends on NET_ETHERNET && AVR32 + depends on NET_ETHERNET && (AVR32 || ARCH_AT91SAM9260 || ARCH_AT91SAM9263) select MII help The Atmel MACB ethernet interface is found on many AT32 and AT91 diff --git a/drivers/net/macb.c b/drivers/net/macb.c index 25b559b5d5ed..5eb7a3536f29 100644 --- a/drivers/net/macb.c +++ b/drivers/net/macb.c @@ -1046,6 +1046,14 @@ static int __devinit macb_probe(struct platform_device *pdev) spin_lock_init(&bp->lock); +#if defined(CONFIG_ARCH_AT91) + bp->pclk = clk_get(&pdev->dev, "macb_clk"); + if (IS_ERR(bp->pclk)) { + dev_err(&pdev->dev, "failed to get macb_clk\n"); + goto err_out_free_dev; + } + clk_enable(bp->pclk); +#else bp->pclk = clk_get(&pdev->dev, "pclk"); if (IS_ERR(bp->pclk)) { dev_err(&pdev->dev, "failed to get pclk\n"); @@ -1059,6 +1067,7 @@ static int __devinit macb_probe(struct platform_device *pdev) clk_enable(bp->pclk); clk_enable(bp->hclk); +#endif bp->regs = ioremap(regs->start, regs->end - regs->start + 1); if (!bp->regs) { @@ -1119,9 +1128,17 @@ static int __devinit macb_probe(struct platform_device *pdev) pdata = pdev->dev.platform_data; if (pdata && pdata->is_rmii) +#if defined(CONFIG_ARCH_AT91) + macb_writel(bp, USRIO, (MACB_BIT(RMII) | MACB_BIT(CLKEN)) ); +#else macb_writel(bp, USRIO, 0); +#endif else +#if defined(CONFIG_ARCH_AT91) + macb_writel(bp, USRIO, MACB_BIT(CLKEN)); +#else macb_writel(bp, USRIO, MACB_BIT(MII)); +#endif bp->tx_pending = DEF_TX_RING_PENDING; @@ -1148,9 +1165,11 @@ err_out_free_irq: err_out_iounmap: iounmap(bp->regs); err_out_disable_clocks: +#ifndef CONFIG_ARCH_AT91 clk_disable(bp->hclk); - clk_disable(bp->pclk); clk_put(bp->hclk); +#endif + clk_disable(bp->pclk); err_out_put_pclk: clk_put(bp->pclk); err_out_free_dev: @@ -1173,9 +1192,11 @@ static int __devexit macb_remove(struct platform_device *pdev) unregister_netdev(dev); free_irq(dev->irq, dev); iounmap(bp->regs); +#ifndef CONFIG_ARCH_AT91 clk_disable(bp->hclk); - clk_disable(bp->pclk); clk_put(bp->hclk); +#endif + clk_disable(bp->pclk); clk_put(bp->pclk); free_netdev(dev); platform_set_drvdata(pdev, NULL); diff --git a/drivers/net/macb.h b/drivers/net/macb.h index 27bf0ae0f0bb..b3bb2182edd1 100644 --- a/drivers/net/macb.h +++ b/drivers/net/macb.h @@ -200,7 +200,7 @@ #define MACB_SOF_OFFSET 30 #define MACB_SOF_SIZE 2 -/* Bitfields in USRIO */ +/* Bitfields in USRIO (AVR32) */ #define MACB_MII_OFFSET 0 #define MACB_MII_SIZE 1 #define MACB_EAM_OFFSET 1 @@ -210,6 +210,12 @@ #define MACB_TX_PAUSE_ZERO_OFFSET 3 #define MACB_TX_PAUSE_ZERO_SIZE 1 +/* Bitfields in USRIO (AT91) */ +#define MACB_RMII_OFFSET 0 +#define MACB_RMII_SIZE 1 +#define MACB_CLKEN_OFFSET 1 +#define MACB_CLKEN_SIZE 1 + /* Bitfields in WOL */ #define MACB_IP_OFFSET 0 #define MACB_IP_SIZE 16 |