forked from mirrors/linux
x86/platform/mellanox: Introduce support for Mellanox systems platform
Enable system support for the Mellanox Technologies platform, which provides support for the next Mellanox basic systems: "msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410", "msb7800", "msn2740", "msn2100" and also various number of derivative systems from the above basic types. The Kconfig controlling compilation of this code is: MLX_PLATFORM Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Cc: jiri@resnulli.us Cc: gregkh@linuxfoundation.org Cc: platform-driver-x86@vger.kernel.org Cc: geert@linux-m68k.org Cc: linux@roeck-us.net Cc: akpm@linux-foundation.org Cc: mchehab@kernel.org Cc: davem@davemloft.net Cc: kvalo@codeaurora.org Link: http://lkml.kernel.org/r/1474578822-33805-1-git-send-email-vadimp@mellanox.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Vadim Pasternak
Thomas Gleixner
parent
4f059d514f
commit
58cbbee239
5 changed files with 286 additions and 0 deletions
|
|
@ -7668,6 +7668,12 @@ W: http://www.mellanox.com
|
|||
Q: http://patchwork.ozlabs.org/project/netdev/list/
|
||||
F: drivers/net/ethernet/mellanox/mlxsw/
|
||||
|
||||
MELLANOX PLATFORM DRIVER
|
||||
M: Vadim Pasternak <vadimp@mellanox.com>
|
||||
L: platform-driver-x86@vger.kernel.org
|
||||
S: Supported
|
||||
F: arch/x86/platform/mellanox/mlx-platform.c
|
||||
|
||||
SOFT-ROCE DRIVER (rxe)
|
||||
M: Moni Shoua <monis@mellanox.com>
|
||||
L: linux-rdma@vger.kernel.org
|
||||
|
|
|
|||
|
|
@ -549,6 +549,18 @@ config X86_INTEL_QUARK
|
|||
Say Y here if you have a Quark based system such as the Arduino
|
||||
compatible Intel Galileo.
|
||||
|
||||
config MLX_PLATFORM
|
||||
tristate "Mellanox Technologies platform support"
|
||||
depends on X86_64
|
||||
depends on X86_EXTENDED_PLATFORM
|
||||
---help---
|
||||
This option enables system support for the Mellanox Technologies
|
||||
platform.
|
||||
|
||||
Say Y here if you are building a kernel for Mellanox system.
|
||||
|
||||
Otherwise, say N.
|
||||
|
||||
config X86_INTEL_LPSS
|
||||
bool "Intel Low Power Subsystem Support"
|
||||
depends on X86 && ACPI
|
||||
|
|
|
|||
|
|
@ -8,6 +8,7 @@ obj-y += iris/
|
|||
obj-y += intel/
|
||||
obj-y += intel-mid/
|
||||
obj-y += intel-quark/
|
||||
obj-y += mellanox/
|
||||
obj-y += olpc/
|
||||
obj-y += scx200/
|
||||
obj-y += sfi/
|
||||
|
|
|
|||
1
arch/x86/platform/mellanox/Makefile
Normal file
1
arch/x86/platform/mellanox/Makefile
Normal file
|
|
@ -0,0 +1 @@
|
|||
obj-$(CONFIG_MLX_PLATFORM) += mlx-platform.o
|
||||
266
arch/x86/platform/mellanox/mlx-platform.c
Normal file
266
arch/x86/platform/mellanox/mlx-platform.c
Normal file
|
|
@ -0,0 +1,266 @@
|
|||
/*
|
||||
* arch/x86/platform/mellanox/mlx-platform.c
|
||||
* Copyright (c) 2016 Mellanox Technologies. All rights reserved.
|
||||
* Copyright (c) 2016 Vadim Pasternak <vadimp@mellanox.com>
|
||||
*
|
||||
* 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.
|
||||
* 3. Neither the names of the copyright holders nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* Alternatively, this software may be distributed under the terms of the
|
||||
* GNU General Public License ("GPL") version 2 as published by the Free
|
||||
* Software Foundation.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER 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/dmi.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/i2c-mux.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/platform_data/i2c-mux-reg.h>
|
||||
|
||||
#define MLX_PLAT_DEVICE_NAME "mlxplat"
|
||||
|
||||
/* LPC bus IO offsets */
|
||||
#define MLXPLAT_CPLD_LPC_I2C_BASE_ADRR 0x2000
|
||||
#define MLXPLAT_CPLD_LPC_REG_BASE_ADRR 0x2500
|
||||
#define MLXPLAT_CPLD_LPC_IO_RANGE 0x100
|
||||
#define MLXPLAT_CPLD_LPC_I2C_CH1_OFF 0xdb
|
||||
#define MLXPLAT_CPLD_LPC_I2C_CH2_OFF 0xda
|
||||
#define MLXPLAT_CPLD_LPC_PIO_OFFSET 0x10000UL
|
||||
#define MLXPLAT_CPLD_LPC_REG1 ((MLXPLAT_CPLD_LPC_REG_BASE_ADRR + \
|
||||
MLXPLAT_CPLD_LPC_I2C_CH1_OFF) | \
|
||||
MLXPLAT_CPLD_LPC_PIO_OFFSET)
|
||||
#define MLXPLAT_CPLD_LPC_REG2 ((MLXPLAT_CPLD_LPC_REG_BASE_ADRR + \
|
||||
MLXPLAT_CPLD_LPC_I2C_CH2_OFF) | \
|
||||
MLXPLAT_CPLD_LPC_PIO_OFFSET)
|
||||
|
||||
/* Start channel numbers */
|
||||
#define MLXPLAT_CPLD_CH1 2
|
||||
#define MLXPLAT_CPLD_CH2 10
|
||||
|
||||
/* Number of LPC attached MUX platform devices */
|
||||
#define MLXPLAT_CPLD_LPC_MUX_DEVS 2
|
||||
|
||||
/* mlxplat_priv - platform private data
|
||||
* @pdev_i2c - i2c controller platform device
|
||||
* @pdev_mux - array of mux platform devices
|
||||
*/
|
||||
struct mlxplat_priv {
|
||||
struct platform_device *pdev_i2c;
|
||||
struct platform_device *pdev_mux[MLXPLAT_CPLD_LPC_MUX_DEVS];
|
||||
};
|
||||
|
||||
/* Regions for LPC I2C controller and LPC base register space */
|
||||
static const struct resource mlxplat_lpc_resources[] = {
|
||||
[0] = DEFINE_RES_NAMED(MLXPLAT_CPLD_LPC_I2C_BASE_ADRR,
|
||||
MLXPLAT_CPLD_LPC_IO_RANGE,
|
||||
"mlxplat_cpld_lpc_i2c_ctrl", IORESOURCE_IO),
|
||||
[1] = DEFINE_RES_NAMED(MLXPLAT_CPLD_LPC_REG_BASE_ADRR,
|
||||
MLXPLAT_CPLD_LPC_IO_RANGE,
|
||||
"mlxplat_cpld_lpc_regs",
|
||||
IORESOURCE_IO),
|
||||
};
|
||||
|
||||
/* Platform default channels */
|
||||
static const int mlxplat_default_channels[][8] = {
|
||||
{
|
||||
MLXPLAT_CPLD_CH1, MLXPLAT_CPLD_CH1 + 1, MLXPLAT_CPLD_CH1 + 2,
|
||||
MLXPLAT_CPLD_CH1 + 3, MLXPLAT_CPLD_CH1 + 4, MLXPLAT_CPLD_CH1 +
|
||||
5, MLXPLAT_CPLD_CH1 + 6, MLXPLAT_CPLD_CH1 + 7
|
||||
},
|
||||
{
|
||||
MLXPLAT_CPLD_CH2, MLXPLAT_CPLD_CH2 + 1, MLXPLAT_CPLD_CH2 + 2,
|
||||
MLXPLAT_CPLD_CH2 + 3, MLXPLAT_CPLD_CH2 + 4, MLXPLAT_CPLD_CH2 +
|
||||
5, MLXPLAT_CPLD_CH2 + 6, MLXPLAT_CPLD_CH2 + 7
|
||||
},
|
||||
};
|
||||
|
||||
/* Platform channels for MSN21xx system family */
|
||||
static const int mlxplat_msn21xx_channels[] = { 1, 2, 3, 4, 5, 6, 7, 8 };
|
||||
|
||||
/* Platform mux data */
|
||||
static struct i2c_mux_reg_platform_data mlxplat_mux_data[] = {
|
||||
{
|
||||
.parent = 1,
|
||||
.base_nr = MLXPLAT_CPLD_CH1,
|
||||
.write_only = 1,
|
||||
.reg = (void __iomem *)MLXPLAT_CPLD_LPC_REG1,
|
||||
.reg_size = 1,
|
||||
.idle_in_use = 1,
|
||||
},
|
||||
{
|
||||
.parent = 1,
|
||||
.base_nr = MLXPLAT_CPLD_CH2,
|
||||
.write_only = 1,
|
||||
.reg = (void __iomem *)MLXPLAT_CPLD_LPC_REG2,
|
||||
.reg_size = 1,
|
||||
.idle_in_use = 1,
|
||||
},
|
||||
|
||||
};
|
||||
|
||||
static struct platform_device *mlxplat_dev;
|
||||
|
||||
static int __init mlxplat_dmi_default_matched(const struct dmi_system_id *dmi)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
|
||||
mlxplat_mux_data[i].values = mlxplat_default_channels[i];
|
||||
mlxplat_mux_data[i].n_values =
|
||||
ARRAY_SIZE(mlxplat_default_channels[i]);
|
||||
}
|
||||
|
||||
return 1;
|
||||
};
|
||||
|
||||
static int __init mlxplat_dmi_msn21xx_matched(const struct dmi_system_id *dmi)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
|
||||
mlxplat_mux_data[i].values = mlxplat_msn21xx_channels;
|
||||
mlxplat_mux_data[i].n_values =
|
||||
ARRAY_SIZE(mlxplat_msn21xx_channels);
|
||||
}
|
||||
|
||||
return 1;
|
||||
};
|
||||
|
||||
static struct dmi_system_id mlxplat_dmi_table[] __initdata = {
|
||||
{
|
||||
.callback = mlxplat_dmi_default_matched,
|
||||
.matches = {
|
||||
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
|
||||
DMI_MATCH(DMI_PRODUCT_NAME, "MSN24"),
|
||||
},
|
||||
},
|
||||
{
|
||||
.callback = mlxplat_dmi_default_matched,
|
||||
.matches = {
|
||||
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
|
||||
DMI_MATCH(DMI_PRODUCT_NAME, "MSN27"),
|
||||
},
|
||||
},
|
||||
{
|
||||
.callback = mlxplat_dmi_default_matched,
|
||||
.matches = {
|
||||
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
|
||||
DMI_MATCH(DMI_PRODUCT_NAME, "MSB"),
|
||||
},
|
||||
},
|
||||
{
|
||||
.callback = mlxplat_dmi_default_matched,
|
||||
.matches = {
|
||||
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
|
||||
DMI_MATCH(DMI_PRODUCT_NAME, "MSX"),
|
||||
},
|
||||
},
|
||||
{
|
||||
.callback = mlxplat_dmi_msn21xx_matched,
|
||||
.matches = {
|
||||
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
|
||||
DMI_MATCH(DMI_PRODUCT_NAME, "MSN21"),
|
||||
},
|
||||
},
|
||||
{ }
|
||||
};
|
||||
|
||||
static int __init mlxplat_init(void)
|
||||
{
|
||||
struct mlxplat_priv *priv;
|
||||
int i, err;
|
||||
|
||||
if (!dmi_check_system(mlxplat_dmi_table))
|
||||
return -ENODEV;
|
||||
|
||||
mlxplat_dev = platform_device_register_simple(MLX_PLAT_DEVICE_NAME, -1,
|
||||
mlxplat_lpc_resources,
|
||||
ARRAY_SIZE(mlxplat_lpc_resources));
|
||||
|
||||
if (!mlxplat_dev)
|
||||
return -ENOMEM;
|
||||
|
||||
priv = devm_kzalloc(&mlxplat_dev->dev, sizeof(struct mlxplat_priv),
|
||||
GFP_KERNEL);
|
||||
if (!priv) {
|
||||
err = -ENOMEM;
|
||||
goto fail_alloc;
|
||||
}
|
||||
platform_set_drvdata(mlxplat_dev, priv);
|
||||
|
||||
priv->pdev_i2c = platform_device_register_simple("i2c_mlxcpld", -1,
|
||||
NULL, 0);
|
||||
if (IS_ERR(priv->pdev_i2c)) {
|
||||
err = PTR_ERR(priv->pdev_i2c);
|
||||
goto fail_alloc;
|
||||
};
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
|
||||
priv->pdev_mux[i] = platform_device_register_resndata(
|
||||
&mlxplat_dev->dev,
|
||||
"i2c-mux-reg", i, NULL,
|
||||
0, &mlxplat_mux_data[i],
|
||||
sizeof(mlxplat_mux_data[i]));
|
||||
if (IS_ERR(priv->pdev_mux[i])) {
|
||||
err = PTR_ERR(priv->pdev_mux[i]);
|
||||
goto fail_platform_mux_register;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
fail_platform_mux_register:
|
||||
for (i--; i > 0 ; i--)
|
||||
platform_device_unregister(priv->pdev_mux[i]);
|
||||
platform_device_unregister(priv->pdev_i2c);
|
||||
fail_alloc:
|
||||
platform_device_unregister(mlxplat_dev);
|
||||
|
||||
return err;
|
||||
}
|
||||
module_init(mlxplat_init);
|
||||
|
||||
static void __exit mlxplat_exit(void)
|
||||
{
|
||||
struct mlxplat_priv *priv = platform_get_drvdata(mlxplat_dev);
|
||||
int i;
|
||||
|
||||
for (i = ARRAY_SIZE(mlxplat_mux_data) - 1; i >= 0 ; i--)
|
||||
platform_device_unregister(priv->pdev_mux[i]);
|
||||
|
||||
platform_device_unregister(priv->pdev_i2c);
|
||||
platform_device_unregister(mlxplat_dev);
|
||||
}
|
||||
module_exit(mlxplat_exit);
|
||||
|
||||
MODULE_AUTHOR("Vadim Pasternak (vadimp@mellanox.com)");
|
||||
MODULE_DESCRIPTION("Mellanox platform driver");
|
||||
MODULE_LICENSE("Dual BSD/GPL");
|
||||
MODULE_ALIAS("dmi:*:*Mellanox*:MSN24*:");
|
||||
MODULE_ALIAS("dmi:*:*Mellanox*:MSN27*:");
|
||||
MODULE_ALIAS("dmi:*:*Mellanox*:MSB*:");
|
||||
MODULE_ALIAS("dmi:*:*Mellanox*:MSX*:");
|
||||
MODULE_ALIAS("dmi:*:*Mellanox*:MSN21*:");
|
||||
Loading…
Reference in a new issue