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ARM: imx: add FEC sleep mode callback function

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i.MX6q/dl, i.MX6SX SOCs enet support sleep mode that magic packet can
wake up system in suspend status. For different SOCs, there have some
SOC specifical GPR register to set sleep on/off mode. So add these to
callback function for driver.

Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nimrod Andy 2014-12-24 17:30:40 +08:00 committed by David S. Miller
parent de40ed31b3
commit 456062b3ec
2 changed files with 90 additions and 1 deletions
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41
arch/arm/mach-imx/mach-imx6q.c
View File

@ -31,6 +31,8 @@
#include <linux/micrel_phy.h>
#include <linux/mfd/syscon.h>
#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
#include <linux/fec.h>
#include <linux/netdevice.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/system_misc.h>
@ -39,6 +41,35 @@
#include "cpuidle.h"
#include "hardware.h"
static struct fec_platform_data fec_pdata;
static void imx6q_fec_sleep_enable(int enabled)
{
struct regmap *gpr;
gpr = syscon_regmap_lookup_by_compatible("fsl,imx6q-iomuxc-gpr");
if (!IS_ERR(gpr)) {
if (enabled)
regmap_update_bits(gpr, IOMUXC_GPR13,
IMX6Q_GPR13_ENET_STOP_REQ,
IMX6Q_GPR13_ENET_STOP_REQ);
else
regmap_update_bits(gpr, IOMUXC_GPR13,
IMX6Q_GPR13_ENET_STOP_REQ, 0);
} else
pr_err("failed to find fsl,imx6q-iomux-gpr regmap\n");
}
static void __init imx6q_enet_plt_init(void)
{
struct device_node *np;
np = of_find_node_by_path("/soc/aips-bus@02100000/ethernet@02188000");
if (np && of_get_property(np, "fsl,magic-packet", NULL))
fec_pdata.sleep_mode_enable = imx6q_fec_sleep_enable;
}
/* For imx6q sabrelite board: set KSZ9021RN RGMII pad skew */
static int ksz9021rn_phy_fixup(struct phy_device *phydev)
{
@ -261,6 +292,12 @@ static void __init imx6q_axi_init(void)
}
}
/* Add auxdata to pass platform data */
static const struct of_dev_auxdata imx6q_auxdata_lookup[] __initconst = {
OF_DEV_AUXDATA("fsl,imx6q-fec", 0x02188000, NULL, &fec_pdata),
{ /* sentinel */ }
};
static void __init imx6q_init_machine(void)
{
struct device *parent;
@ -274,11 +311,13 @@ static void __init imx6q_init_machine(void)
imx6q_enet_phy_init();
of_platform_populate(NULL, of_default_bus_match_table, NULL, parent);
of_platform_populate(NULL, of_default_bus_match_table,
imx6q_auxdata_lookup, parent);
imx_anatop_init();
cpu_is_imx6q() ? imx6q_pm_init() : imx6dl_pm_init();
imx6q_1588_init();
imx6q_enet_plt_init();
imx6q_axi_init();
}

50
arch/arm/mach-imx/mach-imx6sx.c
View File

@ -12,12 +12,62 @@
#include <linux/regmap.h>
#include <linux/mfd/syscon.h>
#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
#include <linux/fec.h>
#include <linux/netdevice.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include "common.h"
#include "cpuidle.h"
static struct fec_platform_data fec_pdata[2];
static void imx6sx_fec1_sleep_enable(int enabled)
{
struct regmap *gpr;
gpr = syscon_regmap_lookup_by_compatible("fsl,imx6sx-iomuxc-gpr");
if (!IS_ERR(gpr)) {
if (enabled)
regmap_update_bits(gpr, IOMUXC_GPR4,
IMX6SX_GPR4_FEC_ENET1_STOP_REQ,
IMX6SX_GPR4_FEC_ENET1_STOP_REQ);
else
regmap_update_bits(gpr, IOMUXC_GPR4,
IMX6SX_GPR4_FEC_ENET1_STOP_REQ, 0);
} else
pr_err("failed to find fsl,imx6sx-iomux-gpr regmap\n");
}
static void imx6sx_fec2_sleep_enable(int enabled)
{
struct regmap *gpr;
gpr = syscon_regmap_lookup_by_compatible("fsl,imx6sx-iomuxc-gpr");
if (!IS_ERR(gpr)) {
if (enabled)
regmap_update_bits(gpr, IOMUXC_GPR4,
IMX6SX_GPR4_FEC_ENET2_STOP_REQ,
IMX6SX_GPR4_FEC_ENET2_STOP_REQ);
else
regmap_update_bits(gpr, IOMUXC_GPR4,
IMX6SX_GPR4_FEC_ENET2_STOP_REQ, 0);
} else
pr_err("failed to find fsl,imx6sx-iomux-gpr regmap\n");
}
static void __init imx6sx_enet_plt_init(void)
{
struct device_node *np;
np = of_find_node_by_path("/soc/aips-bus@02100000/ethernet@02188000");
if (np && of_get_property(np, "fsl,magic-packet", NULL))
fec_pdata[0].sleep_mode_enable = imx6sx_fec1_sleep_enable;
np = of_find_node_by_path("/soc/aips-bus@02100000/ethernet@021b4000");
if (np && of_get_property(np, "fsl,magic-packet", NULL))
fec_pdata[1].sleep_mode_enable = imx6sx_fec2_sleep_enable;
}
static int ar8031_phy_fixup(struct phy_device *dev)
{
u16 val;