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author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-01-11 13:28:19 -0200 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-01-11 13:28:19 -0200 |
commit | 734d1ece37fbf3d2ddfc71bc6c69e0fe35f02542 (patch) | |
tree | c4805dd7e746b1feb9e09e9849f3245d0b2c0c6b /arch/arm/mach-omap2/omap_phy_internal.c | |
parent | 216c82c6aba63eeb49d7654b448e0d47bea255bb (diff) | |
parent | 9931faca02c604c22335f5a935a501bb2ace6e20 (diff) |
Merge tag 'v3.8-rc3' into v4l_for_linus
Linux 3.8-rc3
* tag 'v3.8-rc3': (11110 commits)
Linux 3.8-rc3
mm: reinstante dropped pmd_trans_splitting() check
cred: Remove tgcred pointer from struct cred
drm/ttm: fix fence locking in ttm_buffer_object_transfer
ARM: clps711x: Fix bad merge of clockevents setup
ARM: highbank: save and restore L2 cache and GIC on suspend
ARM: highbank: add a power request clear
ARM: highbank: fix secondary boot and hotplug
ARM: highbank: fix typos with hignbank in power request functions
ARM: dts: fix highbank cpu mpidr values
ARM: dts: add device_type prop to cpu nodes on Calxeda platforms
drm/prime: drop reference on imported dma-buf come from gem
xen/netfront: improve truesize tracking
ARM: mx5: Fix MX53 flexcan2 clock
ARM: OMAP2+: am33xx-hwmod: Fix wrongly terminated am33xx_usbss_mpu_irqs array
sctp: fix Kconfig bug in default cookie hmac selection
EDAC: Cleanup device deregistering path
EDAC: Fix EDAC Kconfig menu
EDAC: Fix kernel panic on module unloading
ALSA: hda - add mute LED for HP Pavilion 17 (Realtek codec)
...
Diffstat (limited to 'arch/arm/mach-omap2/omap_phy_internal.c')
-rw-r--r-- | arch/arm/mach-omap2/omap_phy_internal.c | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c b/arch/arm/mach-omap2/omap_phy_internal.c index d992db8ff0b..e237602e10e 100644 --- a/arch/arm/mach-omap2/omap_phy_internal.c +++ b/arch/arm/mach-omap2/omap_phy_internal.c @@ -27,11 +27,43 @@ #include <linux/io.h> #include <linux/err.h> #include <linux/usb.h> - -#include <plat/usb.h> +#include <linux/usb/musb.h> #include "soc.h" #include "control.h" +#include "usb.h" + +#define CONTROL_DEV_CONF 0x300 +#define PHY_PD 0x1 + +/** + * omap4430_phy_power_down: disable MUSB PHY during early init + * + * OMAP4 MUSB PHY module is enabled by default on reset, but this will + * prevent core retention if not disabled by SW. USB driver will + * later on enable this, once and if the driver needs it. + */ +static int __init omap4430_phy_power_down(void) +{ + void __iomem *ctrl_base; + + if (!cpu_is_omap44xx()) + return 0; + + ctrl_base = ioremap(OMAP443X_SCM_BASE, SZ_1K); + if (!ctrl_base) { + pr_err("control module ioremap failed\n"); + return -ENOMEM; + } + + /* Power down the phy */ + __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF); + + iounmap(ctrl_base); + + return 0; +} +early_initcall(omap4430_phy_power_down); void am35x_musb_reset(void) { |