linux-kernel - [PATCH 16/28] phy: phy_brcmstb_sata: add data for phy version

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Message-ID: <1450780741-2237-17-git-send-email-kishon@ti.com>
Date:	Tue, 22 Dec 2015 16:08:49 +0530
From:	Kishon Vijay Abraham I <kishon@...com>
To:	<gregkh@...uxfoundation.org>
CC:	<linux-kernel@...r.kernel.org>
Subject: [PATCH 16/28] phy: phy_brcmstb_sata: add data for phy version

From: Jaedon Shin <jaedon.shin@...il.com>

Add data for phy version, and the default value of version is using the
BRCM_SATA_PHY_28NM.

Signed-off-by: Jaedon Shin <jaedon.shin@...il.com>
Tested-by: Florian Fainelli <f.fainelli@...il.com>
Acked-by: Brian Norris <computersforpeace@...il.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
---
 drivers/phy/phy-brcmstb-sata.c |   23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/drivers/phy/phy-brcmstb-sata.c b/drivers/phy/phy-brcmstb-sata.c
index ddb9b9e..555fb2d 100644
--- a/drivers/phy/phy-brcmstb-sata.c
+++ b/drivers/phy/phy-brcmstb-sata.c
@@ -30,7 +30,11 @@
 #define MAX_PORTS					2
 
 /* Register offset between PHYs in PCB space */
-#define SATA_MDIO_REG_SPACE_SIZE			0x1000
+#define SATA_MDIO_REG_28NM_SPACE_SIZE			0x1000
+
+enum brcm_sata_phy_version {
+	BRCM_SATA_PHY_28NM,
+};
 
 struct brcm_sata_port {
 	int portnum;
@@ -42,6 +46,7 @@ struct brcm_sata_port {
 struct brcm_sata_phy {
 	struct device *dev;
 	void __iomem *phy_base;
+	enum brcm_sata_phy_version version;
 
 	struct brcm_sata_port phys[MAX_PORTS];
 };
@@ -64,8 +69,12 @@ enum sata_mdio_phy_regs_28nm {
 static inline void __iomem *brcm_sata_phy_base(struct brcm_sata_port *port)
 {
 	struct brcm_sata_phy *priv = port->phy_priv;
+	u32 offset;
 
-	return priv->phy_base + (port->portnum * SATA_MDIO_REG_SPACE_SIZE);
+	if (priv->version == BRCM_SATA_PHY_28NM)
+		offset = SATA_MDIO_REG_28NM_SPACE_SIZE;
+
+	return priv->phy_base + (port->portnum * offset);
 }
 
 static void brcm_sata_mdio_wr(void __iomem *addr, u32 bank, u32 ofs,
@@ -126,7 +135,8 @@ static const struct phy_ops phy_ops_28nm = {
 };
 
 static const struct of_device_id brcm_sata_phy_of_match[] = {
-	{ .compatible	= "brcm,bcm7445-sata-phy" },
+	{ .compatible	= "brcm,bcm7445-sata-phy",
+	  .data = (void *)BRCM_SATA_PHY_28NM },
 	{},
 };
 MODULE_DEVICE_TABLE(of, brcm_sata_phy_of_match);
@@ -135,6 +145,7 @@ static int brcm_sata_phy_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct device_node *dn = dev->of_node, *child;
+	const struct of_device_id *of_id;
 	struct brcm_sata_phy *priv;
 	struct resource *res;
 	struct phy_provider *provider;
@@ -154,6 +165,12 @@ static int brcm_sata_phy_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->phy_base))
 		return PTR_ERR(priv->phy_base);
 
+	of_id = of_match_node(brcm_sata_phy_of_match, dn);
+	if (of_id)
+		priv->version = (enum brcm_sata_phy_version)of_id->data;
+	else
+		priv->version = BRCM_SATA_PHY_28NM;
+
 	for_each_available_child_of_node(dn, child) {
 		unsigned int id;
 		struct brcm_sata_port *port;
-- 
1.7.9.5

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