diff options
| author | Karl Kurbjun <kkurbjun@gmail.com> | 2009-11-02 04:37:57 +0000 |
|---|---|---|
| committer | Karl Kurbjun <kkurbjun@gmail.com> | 2009-11-02 04:37:57 +0000 |
| commit | 02385cb5b02ecd13ee63fb636a8ed65071407b01 (patch) | |
| tree | b8d1a58c7676ec0ff6d989f2b6990b6a7dea0a17 /firmware/target/arm/tms320dm320/mrobe-500 | |
| parent | 451f9d58f35a2372a119caa4d9ca56879d8aae4c (diff) | |
M:Robe 500/M66591 USB improvements: Interrupts now work, a bug in odd-length transfers has been fixed. Buffers that are not initially short aligned are also now supported. Enable USB HID mouse mode.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23483 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/arm/tms320dm320/mrobe-500')
| -rw-r--r-- | firmware/target/arm/tms320dm320/mrobe-500/usb-mr500.c | 38 |
1 files changed, 25 insertions, 13 deletions
diff --git a/firmware/target/arm/tms320dm320/mrobe-500/usb-mr500.c b/firmware/target/arm/tms320dm320/mrobe-500/usb-mr500.c index 1fbc1ce60f..06a501179d 100644 --- a/firmware/target/arm/tms320dm320/mrobe-500/usb-mr500.c +++ b/firmware/target/arm/tms320dm320/mrobe-500/usb-mr500.c @@ -30,32 +30,44 @@ void usb_init_device(void) { logf("mxx: SOC Init"); - /* The EMIF timing that is currently used may not be apropriate when the - * device is boosted. The following values were used with sucess too: + /* The following EMIF timing values are from the OF: * IO_EMIF_CS4CTRL1 = 0x66AB; * IO_EMIF_CS4CTRL2 = 0x4220; + * + * These EMIF timing values are more agressive, but appear to work as long + * as USB_TRANS_BLOCK is defined in the USB driver: + * IO_EMIF_CS4CTRL1 = 0x2245; + * IO_EMIF_CS4CTRL2 = 0x4110; + * + * When USB_TRANS_BLOCK is not defined the USB driver does not work unless + * the values from the OF are used. */ + IO_EMIF_CS4CTRL1 = 0x2245; IO_EMIF_CS4CTRL2 = 0x4110; - IO_GIO_DIR0 &= ~(1<<2); - IO_GIO_INV0 &= ~(1<<2); - IO_GIO_FSEL0 &= ~(0x03); + /* Setup the m66591 reset signal */ + IO_GIO_DIR0 &= ~(1<<2); /* output */ + IO_GIO_INV0 &= ~(1<<2); /* non-inverted */ + IO_GIO_FSEL0 &= ~(0x03); /* normal pins */ + + /* Setup the m66591 interrupt signal */ + IO_GIO_DIR0 |= 1<<3; /* input */ + IO_GIO_INV0 &= ~(1<<3); /* non-inverted */ + IO_GIO_IRQPORT |= 1<<3; /* enable EIRQ */ + + udelay(100); /* Drive the reset pin low */ - IO_GIO_BITCLR0 = 1<<2; + IO_GIO_BITCLR0 = 1<<2; /* Wait a bit */ - udelay(3); + udelay(100); /* Release the reset (drive it high) */ - IO_GIO_BITSET0 = 1<<2; - - udelay(300); + IO_GIO_BITSET0 = 1<<2; - IO_GIO_DIR0 |= 1<<3; - IO_GIO_INV0 &= ~(1<<3); - IO_GIO_IRQPORT |= 1<<3; + udelay(500); /* Enable the MXX interrupt */ IO_INTC_EINT1 |= (1<<8); /* IRQ_GIO3 */ |