Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / drivers / staging / netlogic / platform_net.c
diff --git a/kernel/drivers/staging/netlogic/platform_net.c b/kernel/drivers/staging/netlogic/platform_net.c
new file mode 100644 (file)
index 0000000..77c3c35
--- /dev/null
@@ -0,0 +1,245 @@
+/*
+ * Copyright (c) 2003-2012 Broadcom Corporation
+ * All Rights Reserved
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * 1. Redistributions of source code must retain the above copyright
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the Broadcom
+ * license below:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/resource.h>
+#include <linux/phy.h>
+
+#include <asm/netlogic/haldefs.h>
+#include <asm/netlogic/common.h>
+#include <asm/netlogic/xlr/fmn.h>
+#include <asm/netlogic/xlr/xlr.h>
+#include <asm/netlogic/psb-bootinfo.h>
+#include <asm/netlogic/xlr/pic.h>
+#include <asm/netlogic/xlr/iomap.h>
+
+#include "platform_net.h"
+
+/* Linux Net */
+#define MAX_NUM_GMAC           8
+#define MAX_NUM_XLS_GMAC       8
+#define MAX_NUM_XLR_GMAC       4
+
+
+static u32 xlr_gmac_offsets[] = {
+       NETLOGIC_IO_GMAC_0_OFFSET, NETLOGIC_IO_GMAC_1_OFFSET,
+       NETLOGIC_IO_GMAC_2_OFFSET, NETLOGIC_IO_GMAC_3_OFFSET,
+       NETLOGIC_IO_GMAC_4_OFFSET, NETLOGIC_IO_GMAC_5_OFFSET,
+       NETLOGIC_IO_GMAC_6_OFFSET, NETLOGIC_IO_GMAC_7_OFFSET
+};
+
+static u32 xlr_gmac_irqs[] = { PIC_GMAC_0_IRQ, PIC_GMAC_1_IRQ,
+       PIC_GMAC_2_IRQ, PIC_GMAC_3_IRQ,
+       PIC_GMAC_4_IRQ, PIC_GMAC_5_IRQ,
+       PIC_GMAC_6_IRQ, PIC_GMAC_7_IRQ
+};
+
+static struct resource xlr_net0_res[8];
+static struct resource xlr_net1_res[8];
+static u32 __iomem *gmac4_addr;
+static u32 __iomem *gpio_addr;
+
+static void xlr_resource_init(struct resource *res, int offset, int irq)
+{
+       res->name = "gmac";
+
+       res->start = CPHYSADDR(nlm_mmio_base(offset));
+       res->end = res->start + 0xfff;
+       res->flags = IORESOURCE_MEM;
+
+       res++;
+       res->name = "gmac";
+       res->start = res->end = irq;
+       res->flags = IORESOURCE_IRQ;
+}
+
+static struct platform_device *gmac_controller2_init(void *gmac0_addr)
+{
+       int mac;
+       static struct xlr_net_data ndata1 = {
+               .phy_interface  = PHY_INTERFACE_MODE_SGMII,
+               .rfr_station    = FMN_STNID_GMAC1_FR_0,
+               .bucket_size    = xlr_board_fmn_config.bucket_size,
+               .gmac_fmn_info  = &xlr_board_fmn_config.gmac[1],
+       };
+
+       static struct platform_device xlr_net_dev1 = {
+               .name           = "xlr-net",
+               .id             = 1,
+               .dev.platform_data = &ndata1,
+       };
+
+       gmac4_addr = ioremap(CPHYSADDR(
+               nlm_mmio_base(NETLOGIC_IO_GMAC_4_OFFSET)), 0xfff);
+       ndata1.serdes_addr = gmac4_addr;
+       ndata1.pcs_addr = gmac4_addr;
+       ndata1.mii_addr = gmac0_addr;
+       ndata1.gpio_addr = gpio_addr;
+       ndata1.cpu_mask = nlm_current_node()->coremask;
+
+       xlr_net_dev1.resource = xlr_net1_res;
+
+       for (mac = 0; mac < 4; mac++) {
+               ndata1.tx_stnid[mac] = FMN_STNID_GMAC1_TX0 + mac;
+               ndata1.phy_addr[mac] = mac + 4 + 0x10;
+
+               xlr_resource_init(&xlr_net1_res[mac * 2],
+                               xlr_gmac_offsets[mac + 4],
+                               xlr_gmac_irqs[mac + 4]);
+       }
+       xlr_net_dev1.num_resources = 8;
+
+       return &xlr_net_dev1;
+}
+
+static void xls_gmac_init(void)
+{
+       int mac;
+       struct platform_device *xlr_net_dev1;
+       void __iomem *gmac0_addr = ioremap(CPHYSADDR(
+               nlm_mmio_base(NETLOGIC_IO_GMAC_0_OFFSET)), 0xfff);
+
+       static struct xlr_net_data ndata0 = {
+               .rfr_station    = FMN_STNID_GMACRFR_0,
+               .bucket_size    = xlr_board_fmn_config.bucket_size,
+               .gmac_fmn_info  = &xlr_board_fmn_config.gmac[0],
+       };
+
+       static struct platform_device xlr_net_dev0 = {
+               .name           = "xlr-net",
+               .id             = 0,
+       };
+       xlr_net_dev0.dev.platform_data = &ndata0;
+       ndata0.serdes_addr = gmac0_addr;
+       ndata0.pcs_addr = gmac0_addr;
+       ndata0.mii_addr = gmac0_addr;
+
+       /* Passing GPIO base for serdes init. Only needed on sgmii ports */
+       gpio_addr = ioremap(CPHYSADDR(
+               nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET)), 0xfff);
+       ndata0.gpio_addr = gpio_addr;
+       ndata0.cpu_mask = nlm_current_node()->coremask;
+
+       xlr_net_dev0.resource = xlr_net0_res;
+
+       switch (nlm_prom_info.board_major_version) {
+       case 12:
+               /* first block RGMII or XAUI, use RGMII */
+               ndata0.phy_interface = PHY_INTERFACE_MODE_RGMII,
+               ndata0.tx_stnid[0] = FMN_STNID_GMAC0_TX0;
+               ndata0.phy_addr[0] = 0;
+
+               xlr_net_dev0.num_resources = 2;
+
+               xlr_resource_init(&xlr_net0_res[0], xlr_gmac_offsets[0],
+                               xlr_gmac_irqs[0]);
+               platform_device_register(&xlr_net_dev0);
+
+               /* second block is XAUI, not supported yet */
+               break;
+       default:
+               /* default XLS config, all ports SGMII */
+               ndata0.phy_interface = PHY_INTERFACE_MODE_SGMII;
+               for (mac = 0; mac < 4; mac++) {
+                       ndata0.tx_stnid[mac] = FMN_STNID_GMAC0_TX0 + mac;
+                       ndata0.phy_addr[mac] = mac + 0x10;
+
+                       xlr_resource_init(&xlr_net0_res[mac * 2],
+                                       xlr_gmac_offsets[mac],
+                                       xlr_gmac_irqs[mac]);
+               }
+               xlr_net_dev0.num_resources = 8;
+               platform_device_register(&xlr_net_dev0);
+
+               xlr_net_dev1 = gmac_controller2_init(gmac0_addr);
+               platform_device_register(xlr_net_dev1);
+       }
+}
+
+static void xlr_gmac_init(void)
+{
+       int mac;
+
+       /* assume all GMACs for now */
+       static struct xlr_net_data ndata0 = {
+               .phy_interface  = PHY_INTERFACE_MODE_RGMII,
+               .serdes_addr    = NULL,
+               .pcs_addr       = NULL,
+               .rfr_station    = FMN_STNID_GMACRFR_0,
+               .bucket_size    = xlr_board_fmn_config.bucket_size,
+               .gmac_fmn_info  = &xlr_board_fmn_config.gmac[0],
+               .gpio_addr      = NULL,
+       };
+
+
+       static struct platform_device xlr_net_dev0 = {
+               .name           = "xlr-net",
+               .id             = 0,
+               .dev.platform_data = &ndata0,
+       };
+       ndata0.mii_addr = ioremap(CPHYSADDR(
+               nlm_mmio_base(NETLOGIC_IO_GMAC_0_OFFSET)), 0xfff);
+
+       ndata0.cpu_mask = nlm_current_node()->coremask;
+
+       for (mac = 0; mac < MAX_NUM_XLR_GMAC; mac++) {
+               ndata0.tx_stnid[mac] = FMN_STNID_GMAC0_TX0 + mac;
+               ndata0.phy_addr[mac] = mac;
+               xlr_resource_init(&xlr_net0_res[mac * 2], xlr_gmac_offsets[mac],
+                               xlr_gmac_irqs[mac]);
+       }
+       xlr_net_dev0.num_resources = 8;
+       xlr_net_dev0.resource = xlr_net0_res;
+
+       platform_device_register(&xlr_net_dev0);
+}
+
+static int __init xlr_net_init(void)
+{
+       if (nlm_chip_is_xls())
+               xls_gmac_init();
+       else
+               xlr_gmac_init();
+
+       return 0;
+}
+
+arch_initcall(xlr_net_init);