diff options
Diffstat (limited to 'arch/arm/plat-omap/usb.c')
-rw-r--r-- | arch/arm/plat-omap/usb.c | 267 |
1 files changed, 64 insertions, 203 deletions
diff --git a/arch/arm/plat-omap/usb.c b/arch/arm/plat-omap/usb.c index 9c4929a..27b471c 100644 --- a/arch/arm/plat-omap/usb.c +++ b/arch/arm/plat-omap/usb.c @@ -38,25 +38,12 @@ #include <plat/usb.h> #include <plat/board.h> -#ifdef CONFIG_ARCH_OMAP1 - #define INT_USB_IRQ_GEN IH2_BASE + 20 #define INT_USB_IRQ_NISO IH2_BASE + 30 #define INT_USB_IRQ_ISO IH2_BASE + 29 #define INT_USB_IRQ_HGEN INT_USB_HHC_1 #define INT_USB_IRQ_OTG IH2_BASE + 8 -#else - -#define INT_USB_IRQ_GEN INT_24XX_USB_IRQ_GEN -#define INT_USB_IRQ_NISO INT_24XX_USB_IRQ_NISO -#define INT_USB_IRQ_ISO INT_24XX_USB_IRQ_ISO -#define INT_USB_IRQ_HGEN INT_24XX_USB_IRQ_HGEN -#define INT_USB_IRQ_OTG INT_24XX_USB_IRQ_OTG - -#endif - - /* These routines should handle the standard chip-specific modes * for usb0/1/2 ports, covering basic mux and transceiver setup. * @@ -79,90 +66,10 @@ #if defined(CONFIG_ARCH_OMAP_OTG) || defined(CONFIG_ARCH_OMAP15XX) -static void omap2_usb_devconf_clear(u8 port, u32 mask) -{ - u32 r; - - r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); - r &= ~USBTXWRMODEI(port, mask); - omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0); -} - -static void omap2_usb_devconf_set(u8 port, u32 mask) -{ - u32 r; - - r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); - r |= USBTXWRMODEI(port, mask); - omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0); -} - -static void omap2_usb2_disable_5pinbitll(void) -{ - u32 r; - - r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); - r &= ~(USBTXWRMODEI(2, USB_BIDIR_TLL) | USBT2TLL5PI); - omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0); -} - -static void omap2_usb2_enable_5pinunitll(void) -{ - u32 r; - - r = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); - r |= USBTXWRMODEI(2, USB_UNIDIR_TLL) | USBT2TLL5PI; - omap_ctrl_writel(r, OMAP2_CONTROL_DEVCONF0); -} - -static u32 __init omap2_usb0_init(unsigned nwires, unsigned is_device) -{ - u32 syscon1 = 0; - - omap2_usb_devconf_clear(0, USB_BIDIR_TLL); - - if (nwires == 0) - return 0; - - if (is_device) - omap_cfg_reg(J20_24XX_USB0_PUEN); - - omap_cfg_reg(K18_24XX_USB0_DAT); - omap_cfg_reg(K19_24XX_USB0_TXEN); - omap_cfg_reg(J14_24XX_USB0_SE0); - if (nwires != 3) - omap_cfg_reg(J18_24XX_USB0_RCV); - - switch (nwires) { - case 3: - syscon1 = 2; - omap2_usb_devconf_set(0, USB_BIDIR); - break; - case 4: - syscon1 = 1; - omap2_usb_devconf_set(0, USB_BIDIR); - break; - case 6: - syscon1 = 3; - omap_cfg_reg(J19_24XX_USB0_VP); - omap_cfg_reg(K20_24XX_USB0_VM); - omap2_usb_devconf_set(0, USB_UNIDIR); - break; - default: - printk(KERN_ERR "illegal usb%d %d-wire transceiver\n", - 0, nwires); - } - - return syscon1 << 16; -} - static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device) { u32 syscon1 = 0; - if (cpu_is_omap24xx()) - return omap2_usb0_init(nwires, is_device); - if (nwires == 0) { if (!cpu_is_omap15xx()) { u32 l; @@ -266,51 +173,10 @@ static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device) return syscon1 << 16; } -static u32 __init omap2_usb1_init(unsigned nwires) -{ - u32 syscon1 = 0; - - omap2_usb_devconf_clear(1, USB_BIDIR_TLL); - - if (nwires == 0) - return 0; - - /* NOTE: board-specific code must set up pin muxing for usb1, - * since each signal could come out on either of two balls. - */ - - switch (nwires) { - case 2: - /* NOTE: board-specific code must override this setting if - * this TLL link is not using DP/DM - */ - syscon1 = 1; - omap2_usb_devconf_set(1, USB_BIDIR_TLL); - break; - case 3: - syscon1 = 2; - omap2_usb_devconf_set(1, USB_BIDIR); - break; - case 4: - syscon1 = 1; - omap2_usb_devconf_set(1, USB_BIDIR); - break; - case 6: - default: - printk(KERN_ERR "illegal usb%d %d-wire transceiver\n", - 1, nwires); - } - - return syscon1 << 20; -} - static u32 __init omap_usb1_init(unsigned nwires) { u32 syscon1 = 0; - if (cpu_is_omap24xx()) - return omap2_usb1_init(nwires); - if (!cpu_is_omap15xx() && nwires != 6) { u32 l; @@ -372,65 +238,10 @@ bad: return syscon1 << 20; } -static u32 __init omap2_usb2_init(unsigned nwires, unsigned alt_pingroup) -{ - u32 syscon1 = 0; - - omap2_usb2_disable_5pinbitll(); - alt_pingroup = 0; - - /* NOTE omap1 erratum: must leave USB2_UNI_R set if usb0 in use */ - if (alt_pingroup || nwires == 0) - return 0; - - omap_cfg_reg(Y11_24XX_USB2_DAT); - omap_cfg_reg(AA10_24XX_USB2_SE0); - if (nwires > 2) - omap_cfg_reg(AA12_24XX_USB2_TXEN); - if (nwires > 3) - omap_cfg_reg(AA6_24XX_USB2_RCV); - - switch (nwires) { - case 2: - /* NOTE: board-specific code must override this setting if - * this TLL link is not using DP/DM - */ - syscon1 = 1; - omap2_usb_devconf_set(2, USB_BIDIR_TLL); - break; - case 3: - syscon1 = 2; - omap2_usb_devconf_set(2, USB_BIDIR); - break; - case 4: - syscon1 = 1; - omap2_usb_devconf_set(2, USB_BIDIR); - break; - case 5: - omap_cfg_reg(AA4_24XX_USB2_TLLSE0); - /* NOTE: board-specific code must override this setting if - * this TLL link is not using DP/DM. Something must also - * set up OTG_SYSCON2.HMC_TLL{ATTACH,SPEED} - */ - syscon1 = 3; - omap2_usb2_enable_5pinunitll(); - break; - case 6: - default: - printk(KERN_ERR "illegal usb%d %d-wire transceiver\n", - 2, nwires); - } - - return syscon1 << 24; -} - static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup) { u32 syscon1 = 0; - if (cpu_is_omap24xx()) - return omap2_usb2_init(nwires, alt_pingroup); - /* NOTE omap1 erratum: must leave USB2_UNI_R set if usb0 in use */ if (alt_pingroup || nwires == 0) return 0; @@ -498,6 +309,10 @@ bad: return syscon1 << 24; } +#else +#define omap_usb0_init NULL +#define omap_usb1_init NULL +#define omap_usb2_init NULL #endif /*-------------------------------------------------------------------------*/ @@ -535,6 +350,17 @@ static struct platform_device udc_device = { .resource = udc_resources, }; +static inline void udc_device_init(struct omap_usb_config *pdata) +{ + pdata->udc_device = &udc_device; +} + +#else + +static inline void udc_device_init(struct omap_usb_config *pdata) +{ +} + #endif #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) @@ -565,6 +391,17 @@ static struct platform_device ohci_device = { .resource = ohci_resources, }; +static inline void ohci_device_init(struct omap_usb_config *pdata) +{ + pdata->ohci_device = &ohci_device; +} + +#else + +static inline void ohci_device_init(struct omap_usb_config *pdata) +{ +} + #endif #if defined(CONFIG_USB_OTG) && defined(CONFIG_ARCH_OMAP_OTG) @@ -588,6 +425,17 @@ static struct platform_device otg_device = { .resource = otg_resources, }; +static inline void otg_device_init(struct omap_usb_config *pdata) +{ + pdata->otg_device = &otg_device; +} + +#else + +static inline void otg_device_init(struct omap_usb_config *pdata) +{ +} + #endif /*-------------------------------------------------------------------------*/ @@ -622,9 +470,9 @@ omap_otg_init(struct omap_usb_config *config) /* pin muxing and transceiver pinouts */ if (config->pins[0] > 2) /* alt pingroup 2 */ alt_pingroup = 1; - syscon |= omap_usb0_init(config->pins[0], is_usb0_device(config)); - syscon |= omap_usb1_init(config->pins[1]); - syscon |= omap_usb2_init(config->pins[2], alt_pingroup); + syscon |= config->usb0_init(config->pins[0], is_usb0_device(config)); + syscon |= config->usb1_init(config->pins[1]); + syscon |= config->usb2_init(config->pins[2], alt_pingroup); pr_debug("OTG_SYSCON_1 = %08x\n", omap_readl(OTG_SYSCON_1)); omap_writel(syscon, OTG_SYSCON_1); @@ -672,15 +520,17 @@ omap_otg_init(struct omap_usb_config *config) #ifdef CONFIG_USB_GADGET_OMAP if (config->otg || config->register_dev) { + struct platform_device *udc_device = config->udc_device; + syscon &= ~DEV_IDLE_EN; - udc_device.dev.platform_data = config; + udc_device->dev.platform_data = config; /* IRQ numbers for omap7xx */ if(cpu_is_omap7xx()) { udc_resources[1].start = INT_7XX_USB_GENI; udc_resources[2].start = INT_7XX_USB_NON_ISO; udc_resources[3].start = INT_7XX_USB_ISO; } - status = platform_device_register(&udc_device); + status = platform_device_register(udc_device); if (status) pr_debug("can't register UDC device, %d\n", status); } @@ -688,11 +538,13 @@ omap_otg_init(struct omap_usb_config *config) #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) if (config->otg || config->register_host) { + struct platform_device *ohci_device = config->ohci_device; + syscon &= ~HST_IDLE_EN; - ohci_device.dev.platform_data = config; + ohci_device->dev.platform_data = config; if (cpu_is_omap7xx()) ohci_resources[1].start = INT_7XX_USB_HHC_1; - status = platform_device_register(&ohci_device); + status = platform_device_register(ohci_device); if (status) pr_debug("can't register OHCI device, %d\n", status); } @@ -700,11 +552,13 @@ omap_otg_init(struct omap_usb_config *config) #ifdef CONFIG_USB_OTG if (config->otg) { + struct platform_device *otg_device = config->otg_device; + syscon &= ~OTG_IDLE_EN; - otg_device.dev.platform_data = config; + otg_device->dev.platform_data = config; if (cpu_is_omap7xx()) otg_resources[1].start = INT_7XX_USB_OTG; - status = platform_device_register(&otg_device); + status = platform_device_register(otg_device); if (status) pr_debug("can't register OTG device, %d\n", status); } @@ -716,7 +570,7 @@ omap_otg_init(struct omap_usb_config *config) } #else -static inline void omap_otg_init(struct omap_usb_config *config) {} +void omap_otg_init(struct omap_usb_config *config) {} #endif /*-------------------------------------------------------------------------*/ @@ -737,9 +591,9 @@ static void __init omap_1510_usb_init(struct omap_usb_config *config) unsigned int val; u16 w; - omap_usb0_init(config->pins[0], is_usb0_device(config)); - omap_usb1_init(config->pins[1]); - omap_usb2_init(config->pins[2], 0); + config->usb0_init(config->pins[0], is_usb0_device(config)); + config->usb1_init(config->pins[1]); + config->usb2_init(config->pins[2], 0); val = omap_readl(MOD_CONF_CTRL_0) & ~(0x3f << 1); val |= (config->hmc_mode << 1); @@ -807,7 +661,14 @@ static inline void omap_1510_usb_init(struct omap_usb_config *config) {} void __init omap_usb_init(struct omap_usb_config *pdata) { - if (cpu_is_omap7xx() || cpu_is_omap16xx() || cpu_is_omap24xx()) + pdata->usb0_init = omap_usb0_init; + pdata->usb1_init = omap_usb1_init; + pdata->usb2_init = omap_usb2_init; + udc_device_init(pdata); + ohci_device_init(pdata); + otg_device_init(pdata); + + if (cpu_is_omap7xx() || cpu_is_omap16xx()) omap_otg_init(pdata); else if (cpu_is_omap15xx()) omap_1510_usb_init(pdata); |