158 lines
4.4 KiB
Diff
158 lines
4.4 KiB
Diff
From c291443dc97dadcf0c6afd04688a7d9f79a221b5 Mon Sep 17 00:00:00 2001
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From: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
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Date: Wed, 29 Aug 2012 22:08:16 +0200
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Subject: net: switchlib: add driver for Lantiq ADM6996I switch family
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Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
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--- a/drivers/net/switch/Makefile
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+++ b/drivers/net/switch/Makefile
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@@ -11,6 +11,7 @@ LIB := $(obj)libswitch.o
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COBJS-$(CONFIG_SWITCH_MULTI) += switch.o
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COBJS-$(CONFIG_SWITCH_PSB697X) += psb697x.o
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+COBJS-$(CONFIG_SWITCH_ADM6996I) += adm6996i.o
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COBJS := $(COBJS-y)
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SRCS := $(COBJS:.o=.c)
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--- /dev/null
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+++ b/drivers/net/switch/adm6996i.c
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@@ -0,0 +1,115 @@
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+/*
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+ * Copyright (C) 2011-2013 Daniel Schwierzeck, daniel.schwierzeck@gmail.com
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+ *
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+ * SPDX-License-Identifier: GPL-2.0+
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+ */
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+
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+#include <common.h>
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+#include <malloc.h>
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+#include <switch.h>
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+#include <miiphy.h>
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+
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+#define ADM6996I_CHIPID0 0x1020
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+#define ADM6996I_CHIPID1 0x0007
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+#define ADM6996I_PORT_COUNT 6
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+
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+#define ADM6996I_REG_P0BC 0x001 /* P0 Basic Control */
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+#define ADM6996I_REG_P1BC 0x003 /* P1 Basic Control */
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+#define ADM6996I_REG_P2BC 0x005 /* P2 Basic Control */
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+#define ADM6996I_REG_P3BC 0x007 /* P3 Basic Control */
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+#define ADM6996I_REG_P4BC 0x008 /* P4 Basic Control */
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+#define ADM6996I_REG_P5BC 0x009 /* P5 Basic Control */
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+
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+#define ADM6996I_REG_P0EC 0x002 /* P0 Extended Control */
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+#define ADM6996I_REG_P1EC 0x002 /* P1 Extended Control */
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+#define ADM6996I_REG_P2EC 0x004 /* P2 Extended Control */
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+#define ADM6996I_REG_P3EC 0x004 /* P3 Extended Control */
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+#define ADM6996I_REG_P4EC 0x006 /* P4 Extended Control */
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+#define ADM6996I_REG_P5EC 0x006 /* P5 Extended Control */
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+
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+#define ADM6996I_REG_SC4 0x012 /* System Control 4 */
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+
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+#define ADM6996I_REG_CI0 0xA0 /* Chip Identifier 0 */
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+#define ADM6996I_REG_CI1 0xA1 /* Chip Identifier 1 */
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+
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+#define ADM6996I_REG_PXBC_DEFAULT 0x040F
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+#define ADM6996I_REG_PXBC_CROSS_EE (1 << 15)
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+#define ADM6996I_REG_PXBC_PD (1 << 5)
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+
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+#define ADM6996I_REG_SC4_DEFAULT 0x3600
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+#define ADM6996I_REG_SC4_LED_ENABLE (1 << 1)
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+
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+#define ADM6996I_REG_CI0_PC_MASK 0xFFF0
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+#define ADM6996I_REG_CI0_VN_MASK 0xF
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+#define ADM6996I_REG_CI1_PC_MASK 0xF
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+
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+
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+static inline int adm6996i_mii_read(struct mii_dev *bus, u16 reg)
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+{
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+ int ret;
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+
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+ ret = bus->read(bus, (reg >> 5) & 0x1f, MDIO_DEVAD_NONE, reg & 0x1f);
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+
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+ return ret;
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+}
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+
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+static inline int adm6996i_mii_write(struct mii_dev *bus, u16 reg, u16 val)
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+{
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+ int ret;
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+
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+ ret = bus->write(bus, (reg >> 5) & 0x1f, MDIO_DEVAD_NONE,
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+ reg & 0x1f, val);
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+
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+ return ret;
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+}
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+
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+static int adm6996i_probe(struct switch_device *dev)
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+{
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+ struct mii_dev *bus = dev->bus;
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+ u16 ci0, ci1;
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+
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+ ci0 = adm6996i_mii_read(bus, ADM6996I_REG_CI0);
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+ ci1 = adm6996i_mii_read(bus, ADM6996I_REG_CI1);
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+
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+ ci0 &= ADM6996I_REG_CI0_PC_MASK;
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+ ci1 &= ADM6996I_REG_CI1_PC_MASK;
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+
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+ if (ci0 == ADM6996I_CHIPID0 && ci1 == ADM6996I_CHIPID1)
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+ return 0;
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+
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+ return 1;
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+}
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+
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+static void adm6996i_setup(struct switch_device *dev)
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+{
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+ struct mii_dev *bus = dev->bus;
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+ u16 val;
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+
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+ /*
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+ * Write default values (Port enable, 100 Mbps, Full Duplex,
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+ * Auto negotiation, Flow control) and enable crossover auto-detect
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+ */
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+ val = ADM6996I_REG_PXBC_DEFAULT | ADM6996I_REG_PXBC_CROSS_EE;
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+ adm6996i_mii_write(bus, ADM6996I_REG_P0BC, val);
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+ adm6996i_mii_write(bus, ADM6996I_REG_P1BC, val);
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+ adm6996i_mii_write(bus, ADM6996I_REG_P2BC, val);
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+ adm6996i_mii_write(bus, ADM6996I_REG_P3BC, val);
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+ adm6996i_mii_write(bus, ADM6996I_REG_P4BC, val);
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+ adm6996i_mii_write(bus, ADM6996I_REG_P5BC, val);
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+
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+ val = ADM6996I_REG_SC4_DEFAULT | ADM6996I_REG_SC4_LED_ENABLE;
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+ adm6996i_mii_write(bus, ADM6996I_REG_SC4, val);
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+}
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+
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+static struct switch_driver adm6996i_drv = {
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+ .name = "adm6996i",
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+};
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+
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+void switch_adm6996i_init(void)
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+{
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+ /* For archs with manual relocation */
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+ adm6996i_drv.probe = adm6996i_probe;
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+ adm6996i_drv.setup = adm6996i_setup;
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+
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+ switch_driver_register(&adm6996i_drv);
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+}
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--- a/drivers/net/switch/switch.c
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+++ b/drivers/net/switch/switch.c
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@@ -20,6 +20,9 @@ void switch_init(void)
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#if defined(CONFIG_SWITCH_PSB697X)
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switch_psb697x_init();
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#endif
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+#if defined(CONFIG_SWITCH_ADM6996I)
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+ switch_adm6996i_init();
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+#endif
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board_switch_init();
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}
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--- a/include/switch.h
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+++ b/include/switch.h
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@@ -98,6 +98,7 @@ static inline void switch_setup(struct s
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/* Init functions for supported Switch drivers */
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extern void switch_psb697x_init(void);
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+extern void switch_adm6996i_init(void);
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#endif /* __SWITCH_H */
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