--- /dev/null
+From e2c59cedebf72e4a002134a2932f722b508a5448 Mon Sep 17 00:00:00 2001
+From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
+Date: Wed, 29 Aug 2012 22:08:15 +0200
+Subject: net: switchlib: add driver for Lantiq PSB697X switch family
+
+Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
+
+diff --git a/drivers/net/switch/Makefile b/drivers/net/switch/Makefile
+index 31719d8..a426774 100644
+--- a/drivers/net/switch/Makefile
++++ b/drivers/net/switch/Makefile
+@@ -10,6 +10,7 @@ include $(TOPDIR)/config.mk
+ LIB := $(obj)libswitch.o
+
+ COBJS-$(CONFIG_SWITCH_MULTI) += switch.o
++COBJS-$(CONFIG_SWITCH_PSB697X) += psb697x.o
+
+ COBJS := $(COBJS-y)
+ SRCS := $(COBJS:.o=.c)
+diff --git a/drivers/net/switch/psb697x.c b/drivers/net/switch/psb697x.c
+new file mode 100644
+index 0000000..cb6c391
+--- /dev/null
++++ b/drivers/net/switch/psb697x.c
+@@ -0,0 +1,118 @@
++/*
++ * Copyright (C) 2011-2013 Daniel Schwierzeck, daniel.schwierzeck@gmail.com
++ *
++ * SPDX-License-Identifier: GPL-2.0+
++ */
++
++#include <common.h>
++#include <malloc.h>
++#include <switch.h>
++#include <miiphy.h>
++
++#define PSB697X_CHIPID1 0x2599
++#define PSB697X_PORT_COUNT 7
++
++#define PSB697X_PORT_BASE(p) (p * 0x20)
++#define PSB697X_REG_PS(p) (PSB697X_PORT_BASE(p) + 0x00)
++#define PSB697X_REG_PBC(p) (PSB697X_PORT_BASE(p) + 0x01)
++#define PSB697X_REG_PEC(p) (PSB697X_PORT_BASE(p) + 0x02)
++
++#define PSB697X_REG_SGC1 0x0E0 /* Switch Global Control Register 1 */
++#define PSB697X_REG_SGC2 0x0E1 /* Switch Global Control Register 2 */
++#define PSB697X_REG_CMH 0x0E2 /* CPU Port & Mirror Control */
++#define PSB697X_REG_MIICR 0x0F5 /* MII Port Control */
++#define PSB697X_REG_CI0 0x100 /* Chip Identifier 0 */
++#define PSB697X_REG_CI1 0x101 /* Chip Identifier 1 */
++#define PSB697X_REG_MIIAC 0x120 /* MII Indirect Access Control */
++#define PSB697X_REG_MIIWD 0x121 /* MII Indirect Write Data */
++#define PSB697X_REG_MIIRD 0x122 /* MII Indirect Read Data */
++
++#define PSB697X_REG_PORT_FLP (1 << 2) /* Force link up */
++#define PSB697X_REG_PORT_FLD (1 << 1) /* Force link down */
++
++#define PSB697X_REG_SGC2_SE (1 << 15) /* Switch enable */
++
++#define PSB697X_REG_CMH_CPN_MASK 0x7
++#define PSB697X_REG_CMH_CPN_SHIFT 5
++
++
++static inline int psb697x_mii_read(struct mii_dev *bus, u16 reg)
++{
++ int ret;
++
++ ret = bus->read(bus, (reg >> 5) & 0x1f, MDIO_DEVAD_NONE, reg & 0x1f);
++
++ return ret;
++}
++
++static inline int psb697x_mii_write(struct mii_dev *bus, u16 reg, u16 val)
++{
++ int ret;
++
++ ret = bus->write(bus, (reg >> 5) & 0x1f, MDIO_DEVAD_NONE,
++ reg & 0x1f, val);
++
++ return ret;
++}
++
++static int psb697x_probe(struct switch_device *dev)
++{
++ struct mii_dev *bus = dev->bus;
++ int ci1;
++
++ ci1 = psb697x_mii_read(bus, PSB697X_REG_CI1);
++
++ if (ci1 == PSB697X_CHIPID1)
++ return 0;
++
++ return 1;
++}
++
++static void psb697x_setup(struct switch_device *dev)
++{
++ struct mii_dev *bus = dev->bus;
++ int i, state;
++
++ /* Enable switch */
++ psb697x_mii_write(bus, PSB697X_REG_SGC2, PSB697X_REG_SGC2_SE);
++
++ /*
++ * Force 100 Mbps as default value for CPU ports 5 and 6 to get
++ * full speed.
++ */
++ psb697x_mii_write(bus, PSB697X_REG_MIICR, 0x0773);
++
++ for (i = 0; i < PSB697X_PORT_COUNT; i++) {
++ state = dev->port_mask & (1 << i);
++
++ /*
++ * Software workaround from Errata Sheet:
++ * Force link down and reset internal PHY, keep that state
++ * for all unconnected ports and disable force link down
++ * for all connected ports
++ */
++ psb697x_mii_write(bus, PSB697X_REG_PBC(i),
++ PSB697X_REG_PORT_FLD);
++
++ if (i == dev->cpu_port)
++ /* Force link up for CPU port */
++ psb697x_mii_write(bus, PSB697X_REG_PBC(i),
++ PSB697X_REG_PORT_FLP);
++ else if (state)
++ /* Disable force link down for active LAN ports */
++ psb697x_mii_write(bus, PSB697X_REG_PBC(i), 0);
++ }
++}
++
++static struct switch_driver psb697x_drv = {
++ .name = "psb697x",
++};
++
++void switch_psb697x_init(void)
++{
++ /* For archs with manual relocation */
++ psb697x_drv.probe = psb697x_probe;
++ psb697x_drv.setup = psb697x_setup;
++
++ switch_driver_register(&psb697x_drv);
++}
+diff --git a/drivers/net/switch/switch.c b/drivers/net/switch/switch.c
+index 0e1d6b7..3d02610 100644
+--- a/drivers/net/switch/switch.c
++++ b/drivers/net/switch/switch.c
+@@ -17,6 +17,10 @@ void switch_init(void)
+ INIT_LIST_HEAD(&switch_drivers);
+ INIT_LIST_HEAD(&switch_devices);
+
++#if defined(CONFIG_SWITCH_PSB697X)
++ switch_psb697x_init();
++#endif
++
+ board_switch_init();
+ }
+
+diff --git a/include/switch.h b/include/switch.h
+index 4a7ae63..fd3cdbd 100644
+--- a/include/switch.h
++++ b/include/switch.h
+@@ -97,6 +97,7 @@ static inline void switch_setup(struct switch_device *dev)
+ }
+
+ /* Init functions for supported Switch drivers */
++extern void switch_psb697x_init(void);
+
+ #endif /* __SWITCH_H */
+
+--
+1.8.3.2
+
projects / openwrt.git / blobdiff