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Diffstat (limited to 'arch/arm/plat-omap/usb.c')
-rw-r--r--arch/arm/plat-omap/usb.c267
1 files changed, 64 insertions, 203 deletions
diff --git a/arch/arm/plat-omap/usb.c b/arch/arm/plat-omap/usb.c
index 9c4929a33e52..27b471ce11a0 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);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 22:30:31 +0000