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| author |   Nimrod Andy <B38611@freescale.com> | 2014-12-24 17:30:40 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-12-31 13:06:51 -0500 |
| commit | 456062b3ec6f5b96ffe7dd31c84e8666747f8720 (patch) | |
| tree | 2e158abeec59596bb734b1a6b57cd490ac9cce68 /arch/arm/mach-imx/mach-imx6sx.c | |
| parent | net: fec: add Wake-on-LAN support (diff) | |
| download | linux-dev-456062b3ec6f5b96ffe7dd31c84e8666747f8720.tar.xz linux-dev-456062b3ec6f5b96ffe7dd31c84e8666747f8720.zip | |
ARM: imx: add FEC sleep mode callback function
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>
Diffstat (limited to '')
| -rw-r--r-- | arch/arm/mach-imx/mach-imx6sx.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mach-imx6sx.c b/arch/arm/mach-imx/mach-imx6sx.c index 7a96c6577234..747b012665f5 100644 --- a/arch/arm/mach-imx/mach-imx6sx.c +++ b/arch/arm/mach-imx/mach-imx6sx.c @@ -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; |