Add realtek target files

Signed-off-by: Roman Yeryomin <roman@advem.lv>

1 files changed, 248 insertions, 0 deletions

diff --git a/target/linux/realtek/files/drivers/net/r8168/rtl_eeprom.c b/target/linux/realtek/files/drivers/net/r8168/rtl_eeprom.c
new file mode 100644
index 000000000..8106cd508
--- /dev/null
+++ b/target/linux/realtek/files/drivers/net/r8168/rtl_eeprom.c
@@ -0,0 +1,248 @@
+/*
+################################################################################
+# 
+# r8101 is the Linux device driver released for RealTek RTL8101E, RTL8102E,
+# and RTL8103E Fast Ethernet controllers with PCI-Express interface.
+# 
+# Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved.
+# 
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the Free
+# Software Foundation; either version 2 of the License, or (at your option)
+# any later version.
+# 
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+# 
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, see <http://www.gnu.org/licenses/>.
+# 
+# Author:
+# Realtek NIC software team <nicfae@realtek.com>
+# No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan
+# 
+################################################################################
+*/
+
+/*
+ * This product is covered by one or more of the following patents:
+ * US5,307,459, US5,434,872, US5,732,094, US6,570,884, US6,115,776, and US6,327,625.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/ethtool.h>
+#include <linux/netdevice.h>
+#include <linux/delay.h>
+
+#include <asm/io.h>
+
+#include "r8168.h"
+#include "rtl_eeprom.h"
+
+//-------------------------------------------------------------------
+//rtl_eeprom_type():
+//	tell the eeprom type
+//return value:
+//	0: the eeprom type is 93C46
+//	1: the eeprom type is 93C56 or 93C66
+//-------------------------------------------------------------------
+int rtl_eeprom_type(void __iomem *ioaddr)
+{
+	return RTL_R32(RxConfig) & RxCfg_9356SEL;
+}
+
+void rtl_eeprom_cleanup(void __iomem *ioaddr)
+{
+	u8 x;
+
+	x = RTL_R8(Cfg9346);
+	x &= ~(Cfg9346_EEDI | Cfg9346_EECS);
+
+	RTL_W8(Cfg9346, x);
+
+	rtl_raise_clock(&x, ioaddr);
+	rtl_lower_clock(&x, ioaddr);
+}
+
+int rtl_eeprom_cmd_done(void __iomem *ioaddr)
+{
+	u8 x;
+	int i;
+
+	rtl_stand_by(ioaddr);
+
+	for (i = 0; i < 50000; i++) {
+		x = RTL_R8(Cfg9346);
+
+		if (x & Cfg9346_EEDO) {
+			udelay(RTL_CLOCK_RATE * 2 * 3);
+			return 0;	
+		}
+		udelay(1);
+	}
+
+	return -1;
+}
+
+//-------------------------------------------------------------------
+//rtl_eeprom_read_sc():
+//	read one word from eeprom
+//-------------------------------------------------------------------
+u16 rtl_eeprom_read_sc(void __iomem *ioaddr, u16 reg)
+{
+
+	int addr_sz = 6;
+	u8 x;
+	u16 data;
+
+	if (rtl_eeprom_type(ioaddr))
+		addr_sz = 8;
+	else
+		addr_sz = 6;
+
+	x = RTL_R8(Cfg9346);
+	x &= ~(Cfg9346_EEDI | Cfg9346_EEDO | Cfg9346_EESK);
+	x |= Cfg9346_EEM1 | Cfg9346_EECS;
+	RTL_W8(Cfg9346, x);
+
+	rtl_shift_out_bits(RTL_EEPROM_READ_OPCODE, 3, ioaddr);
+	rtl_shift_out_bits(reg, addr_sz, ioaddr);
+
+	data = rtl_shift_in_bits(ioaddr);
+
+	rtl_eeprom_cleanup(ioaddr);
+
+	return data;
+}
+
+//-------------------------------------------------------------------
+//rtl_eeprom_write_sc():
+//	write one word to a specific address in the eeprom
+//-------------------------------------------------------------------
+void rtl_eeprom_write_sc(void __iomem *ioaddr, u16 reg, u16 data)
+{
+	u8 x;
+	int addr_sz = 6;
+	int w_dummy_addr = 4;
+
+	if (rtl_eeprom_type(ioaddr)) {
+		addr_sz = 8;
+		w_dummy_addr = 6;
+	} else {
+		addr_sz = 6;
+		w_dummy_addr = 4;
+	}
+
+	x = RTL_R8(Cfg9346);
+	x &= ~(Cfg9346_EEDI | Cfg9346_EEDO | Cfg9346_EESK);
+	x |= Cfg9346_EEM1 | Cfg9346_EECS;
+	RTL_W8(Cfg9346, x);
+
+	rtl_shift_out_bits(RTL_EEPROM_EWEN_OPCODE, 5, ioaddr);
+	rtl_shift_out_bits(reg, w_dummy_addr, ioaddr);
+	rtl_stand_by(ioaddr);
+
+	rtl_shift_out_bits(RTL_EEPROM_ERASE_OPCODE, 3, ioaddr);
+	rtl_shift_out_bits(reg, addr_sz, ioaddr);
+	if (rtl_eeprom_cmd_done(ioaddr) < 0) {
+		return;
+	}
+	rtl_stand_by(ioaddr);
+
+	rtl_shift_out_bits(RTL_EEPROM_WRITE_OPCODE, 3, ioaddr);
+	rtl_shift_out_bits(reg, addr_sz, ioaddr);
+	rtl_shift_out_bits(data, 16, ioaddr);
+	if (rtl_eeprom_cmd_done(ioaddr) < 0) {
+		return;
+	}
+	rtl_stand_by(ioaddr);
+
+	rtl_shift_out_bits(RTL_EEPROM_EWDS_OPCODE, 5, ioaddr);
+	rtl_shift_out_bits(reg, w_dummy_addr, ioaddr);
+
+	rtl_eeprom_cleanup(ioaddr);
+}
+
+void rtl_raise_clock(u8 *x, void __iomem *ioaddr)
+{
+
+	*x = *x | Cfg9346_EESK;
+	RTL_W8(Cfg9346, *x);
+	udelay(RTL_CLOCK_RATE);
+}
+
+void rtl_lower_clock(u8 *x, void __iomem *ioaddr)
+{
+
+	*x = *x & ~Cfg9346_EESK;
+	RTL_W8(Cfg9346, *x);
+	udelay(RTL_CLOCK_RATE);
+}
+
+void rtl_shift_out_bits(int data, int count, void __iomem *ioaddr)
+{
+	u8 x;
+	int  mask;
+
+	mask = 0x01 << (count - 1);
+	x = RTL_R8(Cfg9346);
+	x &= ~(Cfg9346_EEDI | Cfg9346_EEDO);
+
+	do {
+		x &= ~Cfg9346_EEDI;
+		if (data & mask)
+			x |= Cfg9346_EEDI;
+
+		RTL_W8(Cfg9346, x);
+		udelay(RTL_CLOCK_RATE);
+		rtl_raise_clock(&x, ioaddr);
+		rtl_lower_clock(&x, ioaddr);
+		mask = mask >> 1;
+	} while(mask);
+
+	x &= ~Cfg9346_EEDI;
+	RTL_W8(Cfg9346, x);
+}
+
+u16 rtl_shift_in_bits(void __iomem *ioaddr)
+{
+	u8 x;
+	u16 d, i;
+
+	x = RTL_R8(Cfg9346);
+	x &= ~(Cfg9346_EEDI | Cfg9346_EEDO);
+
+	d = 0;
+
+	for (i = 0; i < 16; i++) {
+		d = d << 1;
+		rtl_raise_clock(&x, ioaddr);
+
+		x = RTL_R8(Cfg9346);
+		x &= ~Cfg9346_EEDI;
+
+		if (x & Cfg9346_EEDO)
+			d |= 1;
+
+		rtl_lower_clock(&x, ioaddr);
+	}
+
+	return d;
+}
+
+void rtl_stand_by(void __iomem *ioaddr)
+{
+	u8 x;
+
+	x = RTL_R8(Cfg9346);
+	x &= ~(Cfg9346_EECS | Cfg9346_EESK);
+	RTL_W8(Cfg9346, x);
+	udelay(RTL_CLOCK_RATE);
+
+	x |= Cfg9346_EECS;
+	RTL_W8(Cfg9346, x);
+}