diff options
Diffstat (limited to 'arch/arm/mach-mx5/usb_h1.c')
| -rw-r--r-- | arch/arm/mach-mx5/usb_h1.c | 81 |
1 files changed, 69 insertions, 12 deletions
diff --git a/arch/arm/mach-mx5/usb_h1.c b/arch/arm/mach-mx5/usb_h1.c index 7f0c463d45c1..3c53ed8901ae 100644 --- a/arch/arm/mach-mx5/usb_h1.c +++ b/arch/arm/mach-mx5/usb_h1.c @@ -17,14 +17,15 @@ #include <linux/clk.h> #include <linux/platform_device.h> #include <linux/fsl_devices.h> +#include <asm/delay.h> #include <mach/arc_otg.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include "usb.h" #include "iomux.h" #include "mx51_pins.h" - - +//#undef pr_debug +//#define pr_debug printk /* * USB Host1 HS port */ @@ -70,25 +71,67 @@ static void _wake_up_enable(struct fsl_usb2_platform_data *pdata, bool enable) { if (enable) USBCTRL |= UCTRL_H1WIE; - else + else { USBCTRL &= ~UCTRL_H1WIE; + /* The interrupt must be disabled for at least 3 + * cycles of the standby clock(32k Hz) , that is 0.094 ms*/ + udelay(100); + } +} + +static void _phy_lowpower_suspend(bool enable) +{ + if (enable) { + UH1_PORTSC1 |= PORTSC_PHCD; + }else { + UH1_PORTSC1 &= ~PORTSC_PHCD; + } } static void usbotg_clock_gate(bool on) { - struct clk *usboh3_clk = clk_get(NULL, "usboh3_clk"); - struct clk *usb_ahb_clk = clk_get(NULL, "usb_ahb_clk"); + struct clk *usb_clk; + if (cpu_is_mx50()) { + if (on) { + usb_clk = clk_get(NULL, "usb_ahb_clk"); + clk_enable(usb_clk); + clk_put(usb_clk); + + } else { + usb_clk = clk_get(NULL, "usb_ahb_clk"); + clk_disable(usb_clk); + clk_put(usb_clk); + } + return; + } + if (cpu_is_mx53()) { + usb_clk = clk_get(NULL, "usb_phy2_clk"); + if (on) { + clk_enable(usb_clk); + } else { + clk_disable(usb_clk); + } + clk_put(usb_clk); + } if (on) { - clk_enable(usb_ahb_clk); - clk_enable(usboh3_clk); + usb_clk = clk_get(NULL, "usb_ahb_clk"); + clk_enable(usb_clk); + clk_put(usb_clk); + + usb_clk = clk_get(NULL, "usboh3_clk"); + clk_enable(usb_clk); + clk_put(usb_clk); + } else { - clk_disable(usboh3_clk); - clk_disable(usb_ahb_clk); - } + usb_clk = clk_get(NULL, "usboh3_clk"); + clk_disable(usb_clk); + clk_put(usb_clk); - clk_put(usboh3_clk); - clk_put(usb_ahb_clk); + usb_clk = clk_get(NULL, "usb_ahb_clk"); + clk_disable(usb_clk); + clk_put(usb_clk); + } } static int fsl_usb_host_init_ext(struct platform_device *pdev) @@ -109,6 +152,10 @@ static int fsl_usb_host_init_ext(struct platform_device *pdev) usb_clk = clk_get(NULL, "usb_utmi_clk"); clk_disable(usb_clk); clk_put(usb_clk); + } else if (cpu_is_mx50()) { + usb_clk = clk_get(NULL, "usb_phy2_clk"); + clk_enable(usb_clk); + clk_put(usb_clk); } ret = fsl_usb_host_init(pdev); @@ -143,7 +190,12 @@ static void fsl_usb_host_uninit_ext(struct fsl_usb2_platform_data *pdata) usb_clk = clk_get(&pdata->pdev->dev, "usb_phy2_clk"); clk_disable(usb_clk); clk_put(usb_clk); + } else if (cpu_is_mx50()) { + usb_clk = clk_get(NULL, "usb_phy2_clk"); + clk_disable(usb_clk); + clk_put(usb_clk); } + fsl_usb_host_uninit(pdata); } @@ -156,9 +208,14 @@ static struct fsl_usb2_platform_data usbh1_config = { .power_budget = 500, /* 500 mA max power */ .wake_up_enable = _wake_up_enable, .usb_clock_for_pm = usbotg_clock_gate, + .phy_lowpower_suspend = _phy_lowpower_suspend, .transceiver = "utmi", }; +void mx5_set_host1_vbus_func(driver_vbus_func driver_vbus) +{ + usbh1_config.platform_driver_vbus = driver_vbus; +} void __init mx5_usbh1_init(void) { if (cpu_is_mx51()) { |