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Message-Id: <1366279869-23387-8-git-send-email-nobuhiro.iwamatsu.yj@renesas.com>
Date: Thu, 18 Apr 2013 19:11:09 +0900
From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>
To: netdev@...r.kernel.org
Cc: yoshihiro.shimoda.uh@...esas.com,
Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>
Subject: [PATCH v2 8/8] net: sh-eth: Rewrite sh_eth_reset function
This driver has sh_eth_reset function each CPU.
And this function is almost the same. This is summarized in
single function.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>
---
v2: Remove unnecessary comment correction.
drivers/net/ethernet/renesas/sh_eth.c | 194 +++++++++++----------------------
1 file changed, 61 insertions(+), 133 deletions(-)
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index eb428d4..d097525 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -355,7 +355,6 @@ static void sh_eth_set_duplex(struct net_device *ndev)
/* There is CPU dependent code */
#if defined(CONFIG_ARCH_R8A7779)
-#define SH_ETH_RESET_DEFAULT 1
static void sh_eth_set_rate(struct net_device *ndev)
{
struct sh_eth_private *mdp = netdev_priv(ndev);
@@ -392,7 +391,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
.hw_swap = 1,
};
#elif defined(CONFIG_CPU_SUBTYPE_SH7724)
-#define SH_ETH_RESET_DEFAULT 1
static void sh_eth_set_rate(struct net_device *ndev)
{
@@ -433,7 +431,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
};
#elif defined(CONFIG_CPU_SUBTYPE_SH7757)
#define SH_ETH_HAS_BOTH_MODULES 1
-static int sh_eth_check_reset(struct net_device *ndev);
static void sh_eth_set_rate(struct net_device *ndev)
{
@@ -500,40 +497,6 @@ static void sh_eth_chip_reset_giga(struct net_device *ndev)
}
static int sh_eth_is_gether(struct sh_eth_private *mdp);
-static int sh_eth_reset(struct net_device *ndev)
-{
- struct sh_eth_private *mdp = netdev_priv(ndev);
- int ret = 0;
-
- if (sh_eth_is_gether(mdp)) {
- sh_eth_write(ndev, EDSR_ENALL, EDSR);
- sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER,
- EDMR);
-
- ret = sh_eth_check_reset(ndev);
- if (ret)
- goto out;
-
- /* Table Init */
- sh_eth_write(ndev, 0x0, TDLAR);
- sh_eth_write(ndev, 0x0, TDFAR);
- sh_eth_write(ndev, 0x0, TDFXR);
- sh_eth_write(ndev, 0x0, TDFFR);
- sh_eth_write(ndev, 0x0, RDLAR);
- sh_eth_write(ndev, 0x0, RDFAR);
- sh_eth_write(ndev, 0x0, RDFXR);
- sh_eth_write(ndev, 0x0, RDFFR);
- } else {
- sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER,
- EDMR);
- mdelay(3);
- sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER,
- EDMR);
- }
-
-out:
- return ret;
-}
static void sh_eth_set_rate_giga(struct net_device *ndev)
{
@@ -596,8 +559,6 @@ static struct sh_eth_cpu_data *sh_eth_get_cpu_data(struct sh_eth_private *mdp)
}
#elif defined(CONFIG_CPU_SUBTYPE_SH7734) || defined(CONFIG_CPU_SUBTYPE_SH7763)
-static int sh_eth_check_reset(struct net_device *ndev);
-static void sh_eth_reset_hw_crc(struct net_device *ndev);
static void sh_eth_chip_reset(struct net_device *ndev)
{
@@ -661,45 +622,8 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
#endif
};
-static int sh_eth_reset(struct net_device *ndev)
-{
- int ret = 0;
-
- sh_eth_write(ndev, EDSR_ENALL, EDSR);
- sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, EDMR);
-
- ret = sh_eth_check_reset(ndev);
- if (ret)
- goto out;
-
- /* Table Init */
- sh_eth_write(ndev, 0x0, TDLAR);
- sh_eth_write(ndev, 0x0, TDFAR);
- sh_eth_write(ndev, 0x0, TDFXR);
- sh_eth_write(ndev, 0x0, TDFFR);
- sh_eth_write(ndev, 0x0, RDLAR);
- sh_eth_write(ndev, 0x0, RDFAR);
- sh_eth_write(ndev, 0x0, RDFXR);
- sh_eth_write(ndev, 0x0, RDFFR);
-
- /* Reset HW CRC register */
- sh_eth_reset_hw_crc(ndev);
-
- /* Select MII mode */
- if (sh_eth_my_cpu_data.select_mii)
- sh_eth_select_mii(ndev);
-out:
- return ret;
-}
-
-static void sh_eth_reset_hw_crc(struct net_device *ndev)
-{
- if (sh_eth_my_cpu_data.hw_crc)
- sh_eth_write(ndev, 0x0, CSMR);
-}
#elif defined(CONFIG_ARCH_R8A7740)
-static int sh_eth_check_reset(struct net_device *ndev);
static void sh_eth_chip_reset(struct net_device *ndev)
{
@@ -712,31 +636,6 @@ static void sh_eth_chip_reset(struct net_device *ndev)
sh_eth_select_mii(ndev);
}
-static int sh_eth_reset(struct net_device *ndev)
-{
- int ret = 0;
-
- sh_eth_write(ndev, EDSR_ENALL, EDSR);
- sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, EDMR);
-
- ret = sh_eth_check_reset(ndev);
- if (ret)
- goto out;
-
- /* Table Init */
- sh_eth_write(ndev, 0x0, TDLAR);
- sh_eth_write(ndev, 0x0, TDFAR);
- sh_eth_write(ndev, 0x0, TDFXR);
- sh_eth_write(ndev, 0x0, TDFFR);
- sh_eth_write(ndev, 0x0, RDLAR);
- sh_eth_write(ndev, 0x0, RDFAR);
- sh_eth_write(ndev, 0x0, RDFXR);
- sh_eth_write(ndev, 0x0, RDFFR);
-
-out:
- return ret;
-}
-
static void sh_eth_set_rate(struct net_device *ndev)
{
struct sh_eth_private *mdp = netdev_priv(ndev);
@@ -785,7 +684,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
};
#elif defined(CONFIG_CPU_SUBTYPE_SH7619)
-#define SH_ETH_RESET_DEFAULT 1
static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
.set_duplex = sh_eth_set_duplex,
.eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
@@ -796,7 +694,6 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
.hw_swap = 1,
};
#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
-#define SH_ETH_RESET_DEFAULT 1
static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
.set_duplex = sh_eth_set_duplex,
.eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
@@ -833,36 +730,6 @@ static void sh_eth_set_default_cpu_data(struct sh_eth_cpu_data *cd)
cd->tx_error_check = DEFAULT_TX_ERROR_CHECK;
}
-#if defined(SH_ETH_RESET_DEFAULT)
-/* Chip Reset */
-static int sh_eth_reset(struct net_device *ndev)
-{
- sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER, EDMR);
- mdelay(3);
- sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER, EDMR);
-
- return 0;
-}
-#else
-static int sh_eth_check_reset(struct net_device *ndev)
-{
- int ret = 0;
- int cnt = 100;
-
- while (cnt > 0) {
- if (!(sh_eth_read(ndev, EDMR) & 0x3))
- break;
- mdelay(1);
- cnt--;
- }
- if (cnt < 0) {
- pr_err("Device reset fail\n");
- ret = -ETIMEDOUT;
- }
- return ret;
-}
-#endif
-
#if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_SHMOBILE)
static void sh_eth_set_receive_align(struct sk_buff *skb)
{
@@ -953,6 +820,67 @@ static unsigned long sh_eth_get_edtrr_trns(struct sh_eth_private *mdp)
return EDTRR_TRNS_ETHER;
}
+static int sh_eth_check_reset(struct net_device *ndev)
+{
+ int ret = 0;
+ int cnt = 100;
+
+ while (cnt > 0) {
+ if (!(sh_eth_read(ndev, EDMR) & 0x3))
+ break;
+ mdelay(1);
+ cnt--;
+ }
+ if (cnt < 0) {
+ pr_err("Device reset fail\n");
+ ret = -ETIMEDOUT;
+ }
+ return ret;
+}
+
+static int sh_eth_reset(struct net_device *ndev)
+{
+ struct sh_eth_private *mdp = netdev_priv(ndev);
+ int ret = 0;
+
+ if (sh_eth_is_gether(mdp)) {
+ sh_eth_write(ndev, EDSR_ENALL, EDSR);
+ sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER,
+ EDMR);
+
+ ret = sh_eth_check_reset(ndev);
+ if (ret)
+ goto out;
+
+ /* Table Init */
+ sh_eth_write(ndev, 0x0, TDLAR);
+ sh_eth_write(ndev, 0x0, TDFAR);
+ sh_eth_write(ndev, 0x0, TDFXR);
+ sh_eth_write(ndev, 0x0, TDFFR);
+ sh_eth_write(ndev, 0x0, RDLAR);
+ sh_eth_write(ndev, 0x0, RDFAR);
+ sh_eth_write(ndev, 0x0, RDFXR);
+ sh_eth_write(ndev, 0x0, RDFFR);
+
+ /* Reset HW CRC register */
+ if (mdp->cd->hw_crc)
+ sh_eth_write(ndev, 0x0, CSMR);
+
+ /* Select MII mode */
+ if (mdp->cd->select_mii)
+ sh_eth_select_mii(ndev);
+ } else {
+ sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER,
+ EDMR);
+ mdelay(3);
+ sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER,
+ EDMR);
+ }
+
+out:
+ return ret;
+}
+
struct bb_info {
void (*set_gate)(void *addr);
struct mdiobb_ctrl ctrl;
--
1.7.10.4
--
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