mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-20 06:08:08 +00:00
03a777c293
Refresh uboot-lantiq patches. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> SVN-Revision: 40546
162 lines
4.2 KiB
Diff
162 lines
4.2 KiB
Diff
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>
|
|
|
|
--- 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)
|
|
--- /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);
|
|
+}
|
|
--- 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();
|
|
}
|
|
|
|
--- a/include/switch.h
|
|
+++ b/include/switch.h
|
|
@@ -97,6 +97,7 @@ static inline void switch_setup(struct s
|
|
}
|
|
|
|
/* Init functions for supported Switch drivers */
|
|
+extern void switch_psb697x_init(void);
|
|
|
|
#endif /* __SWITCH_H */
|
|
|