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Message-Id: <1299863585-17263-1-git-send-email-plagnioj@jcrosoft.com>
Date: Fri, 11 Mar 2011 18:13:05 +0100
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
To: linux-arm-kernel@...ts.infradead.org
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>,
Hans-Christian Egtvedt <hans-christian.egtvedt@...el.com>,
Nicolas Ferre <nicolas.ferre@...el.com>,
Jamie Iles <jamie@...ieiles.com>
Subject: [PATCH] macb: detect IP version to determin if we are on at91 or avr32
this will make macb soc generic and will allow to use it on other arch
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@...el.com>
Cc: Nicolas Ferre <nicolas.ferre@...el.com>
Cc: Jamie Iles <jamie@...ieiles.com>
---
drivers/net/macb.c | 96 +++++++++++++++++++++++++---------------------------
drivers/net/macb.h | 9 +++++
2 files changed, 55 insertions(+), 50 deletions(-)
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index f251866..58cebf2 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -22,7 +22,6 @@
#include <linux/phy.h>
#include <mach/board.h>
-#include <mach/cpu.h>
#include "macb.h"
@@ -1140,28 +1139,30 @@ static int __init 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");
- goto err_out_free_dev;
- }
- bp->hclk = clk_get(&pdev->dev, "hclk");
- if (IS_ERR(bp->hclk)) {
- dev_err(&pdev->dev, "failed to get hclk\n");
- goto err_out_put_pclk;
- }
+ bp->version = macb_readl(bp, VERSION);
- clk_enable(bp->pclk);
- clk_enable(bp->hclk);
-#endif
+ if (macb_is_at91(bp)) {
+ 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");
+ goto err_out_free_dev;
+ }
+ bp->hclk = clk_get(&pdev->dev, "hclk");
+ if (IS_ERR(bp->hclk)) {
+ dev_err(&pdev->dev, "failed to get hclk\n");
+ goto err_out_put_pclk;
+ }
+
+ clk_enable(bp->pclk);
+ clk_enable(bp->hclk);
+ }
bp->regs = ioremap(regs->start, regs->end - regs->start + 1);
if (!bp->regs) {
@@ -1191,18 +1192,17 @@ static int __init macb_probe(struct platform_device *pdev)
macb_get_hwaddr(bp);
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
+ if (pdata && pdata->is_rmii) {
+ if (macb_is_at91(bp))
+ macb_writel(bp, USRIO, (MACB_BIT(RMII) | MACB_BIT(CLKEN)));
+ else
+ macb_writel(bp, USRIO, 0);
+ } else {
+ if (macb_is_at91(bp))
+ macb_writel(bp, USRIO, MACB_BIT(CLKEN));
+ else
+ macb_writel(bp, USRIO, MACB_BIT(MII));
+ }
bp->tx_pending = DEF_TX_RING_PENDING;
@@ -1245,14 +1245,12 @@ err_out_unregister_netdev:
err_out_iounmap:
iounmap(bp->regs);
err_out_disable_clocks:
-#ifndef CONFIG_ARCH_AT91
- clk_disable(bp->hclk);
- clk_put(bp->hclk);
-#endif
+ if (!macb_is_at91(bp)) {
+ clk_disable(bp->hclk);
+ clk_put(bp->hclk);
+ }
clk_disable(bp->pclk);
-#ifndef CONFIG_ARCH_AT91
err_out_put_pclk:
-#endif
clk_put(bp->pclk);
err_out_free_dev:
free_netdev(dev);
@@ -1278,10 +1276,10 @@ static int __exit 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_put(bp->hclk);
-#endif
+ if (!macb_is_at91(bp)) {
+ clk_disable(bp->hclk);
+ clk_put(bp->hclk);
+ }
clk_disable(bp->pclk);
clk_put(bp->pclk);
free_netdev(dev);
@@ -1299,9 +1297,8 @@ static int macb_suspend(struct platform_device *pdev, pm_message_t state)
netif_device_detach(netdev);
-#ifndef CONFIG_ARCH_AT91
- clk_disable(bp->hclk);
-#endif
+ if (!macb_is_at91(bp))
+ clk_disable(bp->hclk);
clk_disable(bp->pclk);
return 0;
@@ -1313,9 +1310,8 @@ static int macb_resume(struct platform_device *pdev)
struct macb *bp = netdev_priv(netdev);
clk_enable(bp->pclk);
-#ifndef CONFIG_ARCH_AT91
- clk_enable(bp->hclk);
-#endif
+ if (!macb_is_at91(bp))
+ clk_enable(bp->hclk);
netif_device_attach(netdev);
diff --git a/drivers/net/macb.h b/drivers/net/macb.h
index d3212f6..56a4fcb 100644
--- a/drivers/net/macb.h
+++ b/drivers/net/macb.h
@@ -59,6 +59,7 @@
#define MACB_TPQ 0x00bc
#define MACB_USRIO 0x00c0
#define MACB_WOL 0x00c4
+#define MACB_VERSION 0x00fc
/* Bitfields in NCR */
#define MACB_LB_OFFSET 0
@@ -389,6 +390,14 @@ struct macb {
unsigned int link;
unsigned int speed;
unsigned int duplex;
+
+ uint32_t version;
};
+#define MACB_VERSION_MASK 0xffff0000
+#define macb_is_at91(bp) \
+ (((bp)->version & MACB_VERSION_MASK) == 0x06010000)
+#define macb_is_avr32(bp) \
+ (((bp)->version & MACB_VERSION_MASK) == 0x00010000)
+
#endif /* _MACB_H */
--
1.7.4.1
--
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