[PATCH 1/2] ARM: socfpga: Add driver for the L3 interconnect
Steffen Trumtrar
s.trumtrar at pengutronix.de
Wed Oct 29 04:33:55 PDT 2014
The L3 interconnect provides Global Programmer View (GPV) registers for every
AXI master and slave on the SoC.
Although this is just a bunch of bits, syscon is not the right approach for
this IP core.
The L3 interconnect is configured with a lot of reserved "holes" in its memory
space. Just mapping this with regmap, what syscon would do, would lead to the
system completely hanging, if one of those areas would be touched.
One example for when this might happen is the regmap registers dump in the
debugfs.
This driver specifies also the valid readable and writable ranges of the L3
interconnect. Other drivers that want to access their GPV registers can do
so with this driver via socfpga_l3nic_regmap_by_phandle.
Signed-off-by: Steffen Trumtrar <s.trumtrar at pengutronix.de>
---
.../bindings/soc/socfpga/altr,l3-nic.txt | 15 ++
drivers/soc/Kconfig | 1 +
drivers/soc/Makefile | 1 +
drivers/soc/socfpga/Kconfig | 11 +
drivers/soc/socfpga/Makefile | 1 +
drivers/soc/socfpga/l3nic.c | 221 +++++++++++++++++++++
include/soc/socfpga/gpv.h | 63 ++++++
include/soc/socfpga/l3regs.h | 194 ++++++++++++++++++
8 files changed, 507 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/socfpga/altr,l3-nic.txt
create mode 100644 drivers/soc/socfpga/Kconfig
create mode 100644 drivers/soc/socfpga/Makefile
create mode 100644 drivers/soc/socfpga/l3nic.c
create mode 100644 include/soc/socfpga/gpv.h
create mode 100644 include/soc/socfpga/l3regs.h
diff --git a/Documentation/devicetree/bindings/soc/socfpga/altr,l3-nic.txt b/Documentation/devicetree/bindings/soc/socfpga/altr,l3-nic.txt
new file mode 100644
index 000000000000..d9491f14eed3
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/socfpga/altr,l3-nic.txt
@@ -0,0 +1,15 @@
+Altera SOCFPGA L3 Network Interconnect
+--------------------------------------
+
+The L3 NIC provides access to Global Programmer View (GPV) registers for all
+AXI slaves and masters on the SoC.
+
+Required properties:
+- compatible : "altr,l3-nic"
+- reg : Should contain 1 register range (address and length)
+
+Example:
+ gpv at ff800000 {
+ compatible = "altr,l3-nic";
+ reg = <0xff800000 0x100000>;
+ };
diff --git a/drivers/soc/Kconfig b/drivers/soc/Kconfig
index 76d6bd4da138..11db07da894f 100644
--- a/drivers/soc/Kconfig
+++ b/drivers/soc/Kconfig
@@ -1,6 +1,7 @@
menu "SOC (System On Chip) specific Drivers"
source "drivers/soc/qcom/Kconfig"
+source "drivers/soc/socfpga/Kconfig"
source "drivers/soc/ti/Kconfig"
source "drivers/soc/versatile/Kconfig"
diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile
index 063113d0bd38..0f89173e328a 100644
--- a/drivers/soc/Makefile
+++ b/drivers/soc/Makefile
@@ -3,6 +3,7 @@
#
obj-$(CONFIG_ARCH_QCOM) += qcom/
+obj-$(CONFIG_ARCH_SOCFPGA) += socfpga/
obj-$(CONFIG_ARCH_TEGRA) += tegra/
obj-$(CONFIG_SOC_TI) += ti/
obj-$(CONFIG_PLAT_VERSATILE) += versatile/
diff --git a/drivers/soc/socfpga/Kconfig b/drivers/soc/socfpga/Kconfig
new file mode 100644
index 000000000000..0478c959ab2c
--- /dev/null
+++ b/drivers/soc/socfpga/Kconfig
@@ -0,0 +1,11 @@
+#
+# SoCFPGA Soc drivers
+#
+
+config SOCFPGA_L3NIC
+ tristate "SoCFPGA L3 NIC-301 driver"
+ depends on ARCH_SOCFPGA
+ select REGMAP_MMIO
+ default y
+ help
+ Enable configuration support for the SoCFPGA L3 AMBA Network Interconnect.
diff --git a/drivers/soc/socfpga/Makefile b/drivers/soc/socfpga/Makefile
new file mode 100644
index 000000000000..e6616d079226
--- /dev/null
+++ b/drivers/soc/socfpga/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_SOCFPGA_L3NIC) += l3nic.o
diff --git a/drivers/soc/socfpga/l3nic.c b/drivers/soc/socfpga/l3nic.c
new file mode 100644
index 000000000000..87cae77e5764
--- /dev/null
+++ b/drivers/soc/socfpga/l3nic.c
@@ -0,0 +1,221 @@
+/*
+ * Copyright 2014 Steffen Trumtrar <s.trumtrar at pengutronix.de>
+ *
+ * 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.
+ */
+
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/types.h>
+#include <soc/socfpga/gpv.h>
+#include <soc/socfpga/l3regs.h>
+
+static const struct regmap_range l3nic_write_regs_range[] = {
+ regmap_reg_range(L3NIC_REMAP, L3NIC_REMAP),
+ regmap_reg_range(L3NIC_L4MAIN, L3NIC_LWHPS2FPGAREGS),
+ regmap_reg_range(L3NIC_USB1, L3NIC_NANDDATA),
+ regmap_reg_range(L3NIC_USB0, L3NIC_SDRDATA),
+ regmap_reg_range(L3NIC_L4_MAIN_FN_MOD_BM_ISS, L3NIC_L4_MAIN_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_L4_SP_FN_MOD_BM_ISS, L3NIC_L4_SP_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_L4_MP_FN_MOD_BM_ISS, L3NIC_L4_MP_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_L4_OSC1_FN_MOD_BM_ISS, L3NIC_L4_OSC1_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_L4_SPIM_FN_MOD_BM_ISS, L3NIC_L4_SPIM_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_STM_FN_MOD_BM_ISS, L3NIC_STM_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_STM_FN_MOD, L3NIC_STM_FN_MOD),
+ regmap_reg_range(L3NIC_LWHPS2FPGA_FN_MOD_BM_ISS, L3NIC_LWHPS2FPGA_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_LWHPS2FPGA_FN_MOD, L3NIC_LWHPS2FPGA_FN_MOD),
+ regmap_reg_range(L3NIC_USB1_FN_MOD_BM_ISS, L3NIC_USB1_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_USB1_AHB_CNTL, L3NIC_USB1_AHB_CNTL),
+ regmap_reg_range(L3NIC_NANDDATA_FN_MOD_BM_ISS, L3NIC_NANDDATA_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_NANDDATA_FN_MOD, L3NIC_NANDDATA_FN_MOD),
+ regmap_reg_range(L3NIC_USB0_FN_MOD_BM_ISS, L3NIC_USB0_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_USB0_AHB_CNTL, L3NIC_USB0_AHB_CNTL),
+ regmap_reg_range(L3NIC_QSPIDATA_FN_MOD_BM_ISS, L3NIC_QSPIDATA_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_QSPIDATA_AHB_CNTL, L3NIC_QSPIDATA_AHB_CNTL),
+ regmap_reg_range(L3NIC_FPGAMGRDATA_FN_MOD_BM_ISS, L3NIC_FPGAMGRDATA_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_FPGAMGRDATA_WR_TIDEMARK, L3NIC_FPGAMGRDATA_WR_TIDEMARK),
+ regmap_reg_range(L3NIC_FPGAMGRDATA_FN_MOD, L3NIC_FPGAMGRDATA_FN_MOD),
+ regmap_reg_range(L3NIC_HPS2FPGA_FN_MOD_BM_ISS, L3NIC_HPS2FPGA_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_HPS2FPGA_WR_TIDEMARK, L3NIC_HPS2FPGA_WR_TIDEMARK),
+ regmap_reg_range(L3NIC_HPS2FPGA_FN_MOD, L3NIC_HPS2FPGA_FN_MOD),
+ regmap_reg_range(L3NIC_ACP_FN_MOD_BM_ISS, L3NIC_ACP_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_ACP_FN_MOD, L3NIC_ACP_FN_MOD),
+ regmap_reg_range(L3NIC_BOOT_ROM_FN_MOD_BM_ISS, L3NIC_BOOT_ROM_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_BOOT_ROM_FN_MOD, L3NIC_BOOT_ROM_FN_MOD),
+ regmap_reg_range(L3NIC_OCRAM_FN_MOD_BM_ISS, L3NIC_OCRAM_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_OCRAM_WR_TIDEMARK, L3NIC_OCRAM_WR_TIDEMARK),
+ regmap_reg_range(L3NIC_OCRAM_FN_MOD, L3NIC_OCRAM_FN_MOD),
+ regmap_reg_range(L3NIC_DAP_FN_MOD2, L3NIC_DAP_FN_MOD_AHB),
+ regmap_reg_range(L3NIC_DAP_READ_QOS, L3NIC_DAP_FN_MOD),
+ regmap_reg_range(L3NIC_MPU_READ_QOS, L3NIC_MPU_FN_MOD),
+ regmap_reg_range(L3NIC_SDMMC_FN_MOD_AHB, L3NIC_SDMMC_FN_MOD_AHB),
+ regmap_reg_range(L3NIC_SDMMC_READ_QOS, L3NIC_SDMMC_FN_MOD),
+ regmap_reg_range(L3NIC_DMA_READ_QOS, L3NIC_DMA_FN_MOD),
+ regmap_reg_range(L3NIC_FPGA2HPS_WR_TIDEMARK, L3NIC_FPGA2HPS_WR_TIDEMARK),
+ regmap_reg_range(L3NIC_FPGA2HPS_READ_QOS, L3NIC_FPGA2HPS_FN_MOD),
+ regmap_reg_range(L3NIC_ETR_READ_QOS, L3NIC_ETR_FN_MOD),
+ regmap_reg_range(L3NIC_EMAC0_READ_QOS, L3NIC_EMAC0_FN_MOD),
+ regmap_reg_range(L3NIC_EMAC1_READ_QOS, L3NIC_EMAC1_FN_MOD),
+ regmap_reg_range(L3NIC_USB0_FN_MOD_AHB, L3NIC_USB0_FN_MOD_AHB),
+ regmap_reg_range(L3NIC_USB0_READ_QOS, L3NIC_USB0_FN_MOD),
+ regmap_reg_range(L3NIC_NAND_READ_QOS, L3NIC_NAND_FN_MOD),
+ regmap_reg_range(L3NIC_USB1_FN_MOD_AHB, L3NIC_USB1_FN_MOD_AHB),
+ regmap_reg_range(L3NIC_USB1_READ_QOS, L3NIC_USB1_FN_MOD),
+};
+
+static const struct regmap_range l3nic_read_regs_range[] = {
+ regmap_reg_range(L3NIC_REMAP, L3NIC_REMAP),
+
+ regmap_reg_range(L3NIC_PERIPH_ID_4, L3NIC_PERIPH_ID_4),
+ regmap_reg_range(L3NIC_PERIPH_ID_0, L3NIC_COMP_ID_3),
+
+ regmap_reg_range(L3NIC_L4_MAIN_FN_MOD_BM_ISS, L3NIC_L4_MAIN_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_L4_SP_FN_MOD_BM_ISS, L3NIC_L4_SP_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_L4_MP_FN_MOD_BM_ISS, L3NIC_L4_MP_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_L4_OSC1_FN_MOD_BM_ISS, L3NIC_L4_OSC1_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_L4_SPIM_FN_MOD_BM_ISS, L3NIC_L4_SPIM_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_STM_FN_MOD_BM_ISS, L3NIC_STM_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_STM_FN_MOD, L3NIC_STM_FN_MOD),
+ regmap_reg_range(L3NIC_LWHPS2FPGA_FN_MOD_BM_ISS, L3NIC_LWHPS2FPGA_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_LWHPS2FPGA_FN_MOD, L3NIC_LWHPS2FPGA_FN_MOD),
+ regmap_reg_range(L3NIC_USB1_FN_MOD_BM_ISS, L3NIC_USB1_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_USB1_AHB_CNTL, L3NIC_USB1_AHB_CNTL),
+ regmap_reg_range(L3NIC_NANDDATA_FN_MOD_BM_ISS, L3NIC_NANDDATA_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_NANDDATA_FN_MOD, L3NIC_NANDDATA_FN_MOD),
+ regmap_reg_range(L3NIC_USB0_FN_MOD_BM_ISS, L3NIC_USB0_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_USB0_AHB_CNTL, L3NIC_USB0_AHB_CNTL),
+ regmap_reg_range(L3NIC_QSPIDATA_FN_MOD_BM_ISS, L3NIC_QSPIDATA_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_QSPIDATA_AHB_CNTL, L3NIC_QSPIDATA_AHB_CNTL),
+ regmap_reg_range(L3NIC_FPGAMGRDATA_FN_MOD_BM_ISS, L3NIC_FPGAMGRDATA_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_FPGAMGRDATA_WR_TIDEMARK, L3NIC_FPGAMGRDATA_WR_TIDEMARK),
+ regmap_reg_range(L3NIC_FPGAMGRDATA_FN_MOD, L3NIC_FPGAMGRDATA_FN_MOD),
+ regmap_reg_range(L3NIC_HPS2FPGA_FN_MOD_BM_ISS, L3NIC_HPS2FPGA_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_HPS2FPGA_WR_TIDEMARK, L3NIC_HPS2FPGA_WR_TIDEMARK),
+ regmap_reg_range(L3NIC_HPS2FPGA_FN_MOD, L3NIC_HPS2FPGA_FN_MOD),
+ regmap_reg_range(L3NIC_ACP_FN_MOD_BM_ISS, L3NIC_ACP_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_ACP_FN_MOD, L3NIC_ACP_FN_MOD),
+ regmap_reg_range(L3NIC_BOOT_ROM_FN_MOD_BM_ISS, L3NIC_BOOT_ROM_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_BOOT_ROM_FN_MOD, L3NIC_BOOT_ROM_FN_MOD),
+ regmap_reg_range(L3NIC_OCRAM_FN_MOD_BM_ISS, L3NIC_OCRAM_FN_MOD_BM_ISS),
+ regmap_reg_range(L3NIC_OCRAM_WR_TIDEMARK, L3NIC_OCRAM_WR_TIDEMARK),
+ regmap_reg_range(L3NIC_OCRAM_FN_MOD, L3NIC_OCRAM_FN_MOD),
+ regmap_reg_range(L3NIC_DAP_FN_MOD2, L3NIC_DAP_FN_MOD_AHB),
+ regmap_reg_range(L3NIC_DAP_READ_QOS, L3NIC_DAP_FN_MOD),
+ regmap_reg_range(L3NIC_MPU_READ_QOS, L3NIC_MPU_FN_MOD),
+ regmap_reg_range(L3NIC_SDMMC_FN_MOD_AHB, L3NIC_SDMMC_FN_MOD_AHB),
+ regmap_reg_range(L3NIC_SDMMC_READ_QOS, L3NIC_SDMMC_FN_MOD),
+ regmap_reg_range(L3NIC_DMA_READ_QOS, L3NIC_DMA_FN_MOD),
+ regmap_reg_range(L3NIC_FPGA2HPS_WR_TIDEMARK, L3NIC_FPGA2HPS_WR_TIDEMARK),
+ regmap_reg_range(L3NIC_FPGA2HPS_READ_QOS, L3NIC_FPGA2HPS_FN_MOD),
+ regmap_reg_range(L3NIC_ETR_READ_QOS, L3NIC_ETR_FN_MOD),
+ regmap_reg_range(L3NIC_EMAC0_READ_QOS, L3NIC_EMAC0_FN_MOD),
+ regmap_reg_range(L3NIC_EMAC1_READ_QOS, L3NIC_EMAC1_FN_MOD),
+ regmap_reg_range(L3NIC_USB0_FN_MOD_AHB, L3NIC_USB0_FN_MOD_AHB),
+ regmap_reg_range(L3NIC_USB0_READ_QOS, L3NIC_USB0_FN_MOD),
+ regmap_reg_range(L3NIC_NAND_READ_QOS, L3NIC_NAND_FN_MOD),
+ regmap_reg_range(L3NIC_USB1_FN_MOD_AHB, L3NIC_USB1_FN_MOD_AHB),
+ regmap_reg_range(L3NIC_USB1_READ_QOS, L3NIC_USB1_FN_MOD),
+};
+
+static const struct regmap_access_table l3nic_write_regs = {
+ .yes_ranges = l3nic_write_regs_range,
+ .n_yes_ranges = ARRAY_SIZE(l3nic_write_regs_range),
+};
+
+static const struct regmap_access_table l3nic_read_regs = {
+ .yes_ranges = l3nic_read_regs_range,
+ .n_yes_ranges = ARRAY_SIZE(l3nic_read_regs_range),
+};
+
+static struct regmap_config l3nic_regmap_config = {
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_stride = 4,
+ .rd_table = &l3nic_read_regs,
+ .wr_table = &l3nic_write_regs,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+int socfpga_l3nic_regmap_by_phandle(struct device_node *np,
+ struct regmap **regmap,
+ const char *name)
+{
+ struct socfpga_l3nic *l3nic;
+ struct platform_device *pdev;
+
+ pdev = socfpga_gpv_device_by_phandle(np, name);
+ if (!pdev)
+ return PTR_ERR(pdev);
+
+ l3nic = dev_get_drvdata(&pdev->dev);
+ if (!l3nic)
+ return -EINVAL;
+
+ *regmap = l3nic->regmap;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(socfpga_l3nic_regmap_by_phandle);
+
+static int socfpga_l3nic_probe(struct platform_device *pdev)
+{
+ struct socfpga_l3nic *priv;
+ struct resource *res;
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ priv->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(priv->base))
+ return PTR_ERR(priv->base);
+
+ l3nic_regmap_config.max_register = res->end - res->start - 3;
+ priv->regmap = devm_regmap_init_mmio(&pdev->dev, priv->base,
+ &l3nic_regmap_config);
+ if (IS_ERR(priv->regmap)) {
+ dev_err(&pdev->dev, "regmap init failed\n");
+ return PTR_ERR(priv->regmap);
+ }
+
+ platform_set_drvdata(pdev, priv);
+
+ dev_info(&pdev->dev, "L3 NIC-301 registered\n");
+
+ return 0;
+}
+
+static int socfpga_l3nic_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static const struct of_device_id socfpga_l3nic_dt_ids[] = {
+ { .compatible = "altr,l3-nic", },
+ { /* sentinel */ },
+};
+
+static struct platform_driver socfpga_l3nic_driver = {
+ .probe = socfpga_l3nic_probe,
+ .remove = socfpga_l3nic_remove,
+ .driver = {
+ .name = "socfpga-l3-nic",
+ .owner = THIS_MODULE,
+ .of_match_table = socfpga_l3nic_dt_ids,
+ },
+};
+module_platform_driver(socfpga_l3nic_driver);
+
+MODULE_AUTHOR("Steffen Trumtrar <s.trumtrar at pengutronix.de");
+MODULE_DESCRIPTION("Socfpga L3 NIC-301 Interconnect Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/soc/socfpga/gpv.h b/include/soc/socfpga/gpv.h
new file mode 100644
index 000000000000..31bb555ea2c3
--- /dev/null
+++ b/include/soc/socfpga/gpv.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2014 Steffen Trumtrar <s.trumtrar at pengutronix.de>
+ *
+ * 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.
+ */
+
+#ifndef __SOC_SOCFPGA_GPV_H__
+#define __SOC_SOCFPGA_GPV_H__
+
+#ifdef CONFIG_ARCH_SOCFPGA
+
+#include <linux/device.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+#define GPV_FN_MOD_BM_ISS_WR BIT(1)
+#define GPV_FN_MOD_BM_ISS_RD BIT(0)
+#define GPV_AHB_CNTL_FORCE_INCR BIT(1)
+#define GPV_AHB_CNTL_DECERR_EN BIT(0)
+#define GPV_WR_TIDEMARK_MASK 0xf
+#define GPV_FN_MOD_AHB_WR_INCR_OVERRIDE BIT(1)
+#define GPV_FN_MOD_AHB_RD_INCR_OVERRIDE BIT(0)
+#define GPV_FN_MOD_WR BIT(1)
+#define GPV_FN_MOD_RD BIT(0)
+#define GPV_FN_MOD_BYPASS_MERGE BIT(0)
+#define GPV_READ_QOS_MASK 0xf
+#define GPV_WRITE_QOS_MASK 0xf
+
+static inline struct platform_device *socfpga_gpv_device_by_phandle(
+ struct device_node *np,
+ const char *name)
+{
+ struct device_node *gpv_np;
+ struct platform_device *pdev;
+
+ gpv_np = of_parse_phandle(np, name, 0);
+ if (!gpv_np)
+ return ERR_PTR(-EINVAL);
+
+ pdev = of_find_device_by_node(gpv_np);
+
+ of_node_put(gpv_np);
+
+ if (!pdev)
+ return ERR_PTR(-EPROBE_DEFER);
+
+ return pdev;
+}
+
+#else
+
+static struct platform_device *socfpga_gpv_device_by_phandle(
+ struct device_node *np,
+ const char *name)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
+#endif
+#endif
diff --git a/include/soc/socfpga/l3regs.h b/include/soc/socfpga/l3regs.h
new file mode 100644
index 000000000000..90fc67af6315
--- /dev/null
+++ b/include/soc/socfpga/l3regs.h
@@ -0,0 +1,194 @@
+/*
+ * Copyright (c) 2014 Steffen Trumtrar <s.trumtrar at pengutronix.de>
+ *
+ * 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.
+ */
+
+#ifndef __SOC_SOCFPGA_L3NIC_H__
+#define __SOC_SOCFPGA_L3NIC_H__
+
+#ifdef CONFIG_ARCH_SOCFPGA
+
+#define L3NIC_REMAP 0x0
+
+/* Security Registers */
+
+#define L3NIC_L4MAIN 0x8
+#define L3NIC_L4SP 0xc
+#define L3NIC_L4MP 0x10
+#define L3NIC_L4OSC1 0x14
+#define L3NIC_L4SPIM 0x18
+#define L3NIC_STM 0x1c
+#define L3NIC_LWHPS2FPGAREGS 0x20
+
+#define L3NIC_USB1 0x28
+#define L3NIC_NANDDATA 0x2c
+
+#define L3NIC_USB0 0x80
+#define L3NIC_NANDREGS 0x84
+#define L3NIC_QSPIDATA 0x88
+#define L3NIC_FPGAMGRDATA 0x8c
+#define L3NIC_HPS2FPGAREGS 0x90
+#define L3NIC_ACP 0x94
+#define L3NIC_ROM 0x98
+#define L3NIC_OCRAM 0x9c
+#define L3NIC_SDRDATA 0xa0
+
+/* ID registers */
+
+#define L3NIC_PERIPH_ID_4 0x1fd0
+
+#define L3NIC_PERIPH_ID_0 0x1fe0
+#define L3NIC_PERIPH_ID_1 0x1fe4
+#define L3NIC_PERIPH_ID_2 0x1fe8
+#define L3NIC_PERIPH_ID_3 0x1fec
+#define L3NIC_COMP_ID_0 0x1ff0
+#define L3NIC_COMP_ID_1 0x1ff4
+#define L3NIC_COMP_ID_2 0x1ff8
+#define L3NIC_COMP_ID_3 0x1ffc
+
+/* Master Registers */
+
+#define L3NIC_L4_MAIN_FN_MOD_BM_ISS 0x2008
+
+#define L3NIC_L4_SP_FN_MOD_BM_ISS 0x3008
+
+#define L3NIC_L4_MP_FN_MOD_BM_ISS 0x4008
+
+#define L3NIC_L4_OSC1_FN_MOD_BM_ISS 0x5008
+
+#define L3NIC_L4_SPIM_FN_MOD_BM_ISS 0x6008
+
+#define L3NIC_STM_FN_MOD_BM_ISS 0x7008
+
+#define L3NIC_STM_FN_MOD 0x7108
+
+#define L3NIC_LWHPS2FPGA_FN_MOD_BM_ISS 0x8008
+
+#define L3NIC_LWHPS2FPGA_FN_MOD 0x8108
+
+#define L3NIC_USB1_FN_MOD_BM_ISS 0xa008
+
+#define L3NIC_USB1_AHB_CNTL 0xa044
+
+#define L3NIC_NANDDATA_FN_MOD_BM_ISS 0xb008
+
+#define L3NIC_NANDDATA_FN_MOD 0xb108
+
+#define L3NIC_USB0_FN_MOD_BM_ISS 0x20008
+
+#define L3NIC_USB0_AHB_CNTL 0x20044
+
+#define L3NIC_QSPIDATA_FN_MOD_BM_ISS 0x22008
+
+#define L3NIC_QSPIDATA_AHB_CNTL 0x22044
+
+#define L3NIC_FPGAMGRDATA_FN_MOD_BM_ISS 0x23008
+
+#define L3NIC_FPGAMGRDATA_WR_TIDEMARK 0x23040
+
+#define L3NIC_FPGAMGRDATA_FN_MOD 0x23108
+
+#define L3NIC_HPS2FPGA_FN_MOD_BM_ISS 0x24008
+
+#define L3NIC_HPS2FPGA_WR_TIDEMARK 0x24040
+
+#define L3NIC_HPS2FPGA_FN_MOD 0x24108
+
+#define L3NIC_ACP_FN_MOD_BM_ISS 0x25008
+
+#define L3NIC_ACP_FN_MOD 0x25108
+
+#define L3NIC_BOOT_ROM_FN_MOD_BM_ISS 0x26008
+
+#define L3NIC_BOOT_ROM_FN_MOD 0x26108
+
+#define L3NIC_OCRAM_FN_MOD_BM_ISS 0x27008
+
+#define L3NIC_OCRAM_WR_TIDEMARK 0x27040
+
+#define L3NIC_OCRAM_FN_MOD 0x27108
+
+/* Slave Registers */
+
+#define L3NIC_DAP_FN_MOD2 0x42024
+#define L3NIC_DAP_FN_MOD_AHB 0x42028
+
+#define L3NIC_DAP_READ_QOS 0x42100
+#define L3NIC_DAP_WRITE_QOS 0x42104
+#define L3NIC_DAP_FN_MOD 0x42108
+
+#define L3NIC_MPU_READ_QOS 0x43100
+#define L3NIC_MPU_WRITE_QOS 0x43104
+#define L3NIC_MPU_FN_MOD 0x43108
+
+#define L3NIC_SDMMC_FN_MOD_AHB 0x44028
+
+#define L3NIC_SDMMC_READ_QOS 0x44100
+#define L3NIC_SDMMC_WRITE_QOS 0x44104
+#define L3NIC_SDMMC_FN_MOD 0x44108
+
+#define L3NIC_DMA_READ_QOS 0x45100
+#define L3NIC_DMA_WRITE_QOS 0x45104
+#define L3NIC_DMA_FN_MOD 0x45108
+
+#define L3NIC_FPGA2HPS_WR_TIDEMARK 0x46040
+
+#define L3NIC_FPGA2HPS_READ_QOS 0x46100
+#define L3NIC_FPGA2HPS_WRITE_QOS 0x46104
+#define L3NIC_FPGA2HPS_FN_MOD 0x46108
+
+#define L3NIC_ETR_READ_QOS 0x47100
+#define L3NIC_ETR_WRITE_QOS 0x47104
+#define L3NIC_ETR_FN_MOD 0x47108
+
+#define L3NIC_EMAC0_READ_QOS 0x48100
+#define L3NIC_EMAC0_WRITE_QOS 0x48104
+#define L3NIC_EMAC0_FN_MOD 0x48108
+
+#define L3NIC_EMAC1_READ_QOS 0x49100
+#define L3NIC_EMAC1_WRITE_QOS 0x49104
+#define L3NIC_EMAC1_FN_MOD 0x49108
+
+#define L3NIC_USB0_FN_MOD_AHB 0x4a028
+
+#define L3NIC_USB0_READ_QOS 0x4a100
+#define L3NIC_USB0_WRITE_QOS 0x4a104
+#define L3NIC_USB0_FN_MOD 0x4a108
+
+#define L3NIC_NAND_READ_QOS 0x4b100
+#define L3NIC_NAND_WRITE_QOS 0x4b104
+#define L3NIC_NAND_FN_MOD 0x4b108
+
+#define L3NIC_USB1_FN_MOD_AHB 0x4c028
+
+#define L3NIC_USB1_READ_QOS 0x4c100
+#define L3NIC_USB1_WRITE_QOS 0x4c104
+#define L3NIC_USB1_FN_MOD 0x4c108
+
+#define L3NIC_LWHPS2FPGA_VISIBILITY BIT(4)
+#define L3NIC_HPS2FPGA_VISIBILITY BIT(3)
+
+struct socfpga_l3nic {
+ void __iomem *base;
+ struct regmap *regmap;
+};
+
+extern int socfpga_l3nic_regmap_by_phandle(struct device_node *np,
+ struct regmap **regmap,
+ const char *name);
+
+#else
+
+int socfpga_l3nic_regmap_by_phandle(struct device_node *np,
+ struct regmap *regmap,
+ const char *name)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
+#endif
+#endif
--
2.1.1
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