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Message-Id: <1332314014-31992-1-git-send-email-nobuhiro.iwamatsu.yj@renesas.com>
Date: Wed, 21 Mar 2012 16:13:34 +0900
From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>
To: netdev@...r.kernel.org
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>
Subject: [PATCH] sh: sh_eth: Add support SH7734
Add define of SH7734 register and sh_eth_reset_hw_crc function.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@...esas.com>
---
drivers/net/ethernet/renesas/Kconfig | 9 +++++----
drivers/net/ethernet/renesas/sh_eth.c | 23 ++++++++++++++++++++---
drivers/net/ethernet/renesas/sh_eth.h | 10 ++++++++--
3 files changed, 33 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/renesas/Kconfig b/drivers/net/ethernet/renesas/Kconfig
index 9755b49..077528b 100644
--- a/drivers/net/ethernet/renesas/Kconfig
+++ b/drivers/net/ethernet/renesas/Kconfig
@@ -5,9 +5,10 @@
config SH_ETH
tristate "Renesas SuperH Ethernet support"
depends on SUPERH && \
- (CPU_SUBTYPE_SH7710 || CPU_SUBTYPE_SH7712 || \
- CPU_SUBTYPE_SH7763 || CPU_SUBTYPE_SH7619 || \
- CPU_SUBTYPE_SH7724 || CPU_SUBTYPE_SH7757)
+ (CPU_SUBTYPE_SH7619 || \
+ CPU_SUBTYPE_SH7710 || CPU_SUBTYPE_SH7712 || \
+ CPU_SUBTYPE_SH7724 || CPU_SUBTYPE_SH7734 || \
+ CPU_SUBTYPE_SH7763 || CPU_SUBTYPE_SH7757)
select CRC32
select NET_CORE
select MII
@@ -16,4 +17,4 @@ config SH_ETH
---help---
Renesas SuperH Ethernet device driver.
This driver supporting CPUs are:
- - SH7710, SH7712, SH7763, SH7619, SH7724, and SH7757.
+ - SH7619, SH7710, SH7712, SH7724, SH7734, SH7763 and SH7757.
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 87b6501..685d048 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -1,8 +1,8 @@
/*
* SuperH Ethernet device driver
*
- * Copyright (C) 2006-2008 Nobuhiro Iwamatsu
- * Copyright (C) 2008-2009 Renesas Solutions Corp.
+ * Copyright (C) 2006-2011 Nobuhiro Iwamatsu
+ * Copyright (C) 2008-2011 Renesas Solutions Corp.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -40,6 +40,7 @@
#include <linux/ethtool.h>
#include <linux/if_vlan.h>
#include <linux/sh_eth.h>
+#include <linux/clk.h>
#include "sh_eth.h"
@@ -97,6 +98,7 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
.tpauser = 1,
.hw_swap = 1,
.rpadir = 1,
+ .hw_crc = 0,
.rpadir_value = 0x00020000, /* NET_IP_ALIGN assumed to be 2 */
};
#elif defined(CONFIG_CPU_SUBTYPE_SH7757)
@@ -147,6 +149,7 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
.hw_swap = 1,
.no_ade = 1,
.rpadir = 1,
+ .hw_crc = 0,
.rpadir_value = 2 << 16,
};
@@ -269,6 +272,7 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data_giga = {
.rpadir_value = 2 << 16,
.no_trimd = 1,
.no_ade = 1,
+ .hw_crc = 0,
};
static struct sh_eth_cpu_data *sh_eth_get_cpu_data(struct sh_eth_private *mdp)
@@ -279,8 +283,10 @@ static struct sh_eth_cpu_data *sh_eth_get_cpu_data(struct sh_eth_private *mdp)
return &sh_eth_my_cpu_data;
}
-#elif defined(CONFIG_CPU_SUBTYPE_SH7763)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7734) ||\
+ defined(CONFIG_CPU_SUBTYPE_SH7763)
#define SH_ETH_HAS_TSU 1
+static void sh_eth_reset_hw_crc(struct net_device *ndev);
static void sh_eth_chip_reset(struct net_device *ndev)
{
struct sh_eth_private *mdp = netdev_priv(ndev);
@@ -314,6 +320,9 @@ static void sh_eth_reset(struct net_device *ndev)
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);
}
static void sh_eth_set_duplex(struct net_device *ndev)
@@ -370,8 +379,15 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
.no_trimd = 1,
.no_ade = 1,
.tsu = 1,
+ .hw_crc = 1,
};
+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_CPU_SUBTYPE_SH7619)
#define SH_ETH_RESET_DEFAULT 1
static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
@@ -381,6 +397,7 @@ static struct sh_eth_cpu_data sh_eth_my_cpu_data = {
.mpr = 1,
.tpauser = 1,
.hw_swap = 1,
+ .hw_crc = 0,
};
#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
#define SH_ETH_RESET_DEFAULT 1
diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index cdbd844..da384d2 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -1,7 +1,7 @@
/*
* SuperH Ethernet device driver
*
- * Copyright (C) 2006-2008 Nobuhiro Iwamatsu
+ * Copyright (C) 2006-2008, 2011 Nobuhiro Iwamatsu
* Copyright (C) 2008-2011 Renesas Solutions Corp.
*
* This program is free software; you can redistribute it and/or modify it
@@ -59,6 +59,8 @@ enum {
TRIMD,
RBWAR,
TBRAR,
+ CSMR,
+ RMII_MII,
/* Ether registers */
ECMR,
@@ -170,6 +172,8 @@ static const u16 sh_eth_offset_gigabit[SH_ETH_MAX_REGISTER_OFFSET] = {
[RMCR] = 0x0458,
[RPADIR] = 0x0460,
[FCFTR] = 0x0468,
+ [CSMR] = 0x04E4,
+ [RMII_MII] = 0x0790,
[ECMR] = 0x0500,
[ECSR] = 0x0510,
@@ -375,7 +379,8 @@ static const u16 sh_eth_offset_fast_sh3_sh2[SH_ETH_MAX_REGISTER_OFFSET] = {
/*
* Register's bits
*/
-#ifdef CONFIG_CPU_SUBTYPE_SH7763
+#if defined(CONFIG_CPU_SUBTYPE_SH7734) ||\
+ defined(CONFIG_CPU_SUBTYPE_SH7763)
/* EDSR */
enum EDSR_BIT {
EDSR_ENT = 0x01, EDSR_ENR = 0x02,
@@ -745,6 +750,7 @@ struct sh_eth_cpu_data {
unsigned rpadir:1; /* E-DMAC have RPADIR */
unsigned no_trimd:1; /* E-DMAC DO NOT have TRIMD */
unsigned no_ade:1; /* E-DMAC DO NOT have ADE bit in EESR */
+ unsigned hw_crc:1; /* E-DMAC have CSMR */
};
struct sh_eth_private {
--
1.7.9.1
--
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