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_mux_init_signal("usb0_puen", 0);
omap_mux_init_signal("usb0_dat", 0);
omap_mux_init_signal("usb0_txen", 0);
omap_mux_init_signal("usb0_se0", 0);
if (nwires != 3)
omap_mux_init_signal("usb0_rcv", 0);
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_mux_init_signal("usb0_vp", 0);
omap_mux_init_signal("usb0_vm", 0);
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 omap2_usb1_init(unsigned nwires)
{
u32 syscon1 = 0;
omap2_usb_devconf_clear(1, USB_BIDIR_TLL);
if (nwires == 0)
return 0;
/*
*/
switch (nwires) {
case 2:
/*
*/
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 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_class_is_omap1() && !cpu_is_omap15xx() && nwires != 6) {
u32 l;
l = omap_readl(USB_TRANSCEIVER_CTRL);
l &= ~CONF_USB1_UNI_R;
omap_writel(l, USB_TRANSCEIVER_CTRL);
}
if (cpu_is_omap24xx())
omap2_usb_devconf_clear(1, USB_BIDIR_TLL);
if (nwires == 0)
return 0;
/* external transceiver */
if (cpu_class_is_omap1()) {
omap_cfg_reg(USB1_TXD);
omap_cfg_reg(USB1_TXEN);
if (nwires != 3)
omap_cfg_reg(USB1_RCV);
}
if (cpu_is_omap15xx()) {
omap_cfg_reg(USB1_SEO);
omap_cfg_reg(USB1_SPEED);
// SUSP
} else if (cpu_is_omap1610() || cpu_is_omap5912()) {
omap_cfg_reg(W13_1610_USB1_SE0);
omap_cfg_reg(R13_1610_USB1_SPEED);
// SUSP
} else if (cpu_is_omap1710()) {
omap_cfg_reg(R13_1710_USB1_SE0);
// SUSP
} else if (cpu_is_omap24xx()) {
/* NOTE: board-specific code must set up pin muxing for usb1,
* since each signal could come out on either of two balls.
*/
} else {
pr_debug("usb%d cpu unrecognized\n", 1);
return 0;
}
switch (nwires) {
case 2:
if (!cpu_is_omap24xx())
goto bad;
/* 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;
if (cpu_is_omap24xx())
omap2_usb_devconf_set(1, USB_BIDIR);
break;
case 4:
syscon1 = 1;
if (cpu_is_omap24xx())
omap2_usb_devconf_set(1, USB_BIDIR);
break;
case 6:
if (cpu_is_omap24xx())
goto bad;
syscon1 = 3;
omap_cfg_reg(USB1_VP);
omap_cfg_reg(USB1_VM);
if (!cpu_is_omap15xx()) {
u32 l;
l = omap_readl(USB_TRANSCEIVER_CTRL);
l |= CONF_USB1_UNI_R;
omap_writel(l, USB_TRANSCEIVER_CTRL);
}
break;
default:
bad:
printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
1, nwires);
}
return syscon1 << 20;
}
static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device)
{
u32 syscon1 = 0;
if (cpu_is_omap24xx())
omap2_usb_devconf_clear(0, USB_BIDIR_TLL);
if (nwires == 0) {
if (cpu_class_is_omap1() && !cpu_is_omap15xx()) {
u32 l;
/* pulldown D+/D- */
l = omap_readl(USB_TRANSCEIVER_CTRL);
l &= ~(3 << 1);
omap_writel(l, USB_TRANSCEIVER_CTRL);
}
return 0;
}
if (is_device) {
if (cpu_is_omap24xx())
omap_cfg_reg(J20_24XX_USB0_PUEN);
else
omap_cfg_reg(W4_USB_PUEN);
}
/* internal transceiver (unavailable on 17xx, 24xx) */
if (!cpu_class_is_omap2() && nwires == 2) {
u32 l;
// omap_cfg_reg(P9_USB_DP);
// omap_cfg_reg(R8_USB_DM);
if (cpu_is_omap15xx()) {
/* This works on 1510-Innovator */
return 0;
}
/* NOTES:
* - peripheral should configure VBUS detection!
* - only peripherals may use the internal D+/D- pulldowns
* - OTG support on this port not yet written
*/
l = omap_readl(USB_TRANSCEIVER_CTRL);
l &= ~(7 << 4);
if (!is_device)
l |= (3 << 1);
omap_writel(l, USB_TRANSCEIVER_CTRL);
return 3 << 16;
}
/* alternate pin config, external transceiver */
if (cpu_is_omap15xx()) {
printk(KERN_ERR "no usb0 alt pin config on 15xx\n");
return 0;
}
if (cpu_is_omap24xx()) {
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);
} else {
omap_cfg_reg(V6_USB0_TXD);
omap_cfg_reg(W9_USB0_TXEN);
omap_cfg_reg(W5_USB0_SE0);
if (nwires != 3)
omap_cfg_reg(Y5_USB0_RCV);
}
/* NOTE: SPEED and SUSP aren't configured here. OTG hosts
* may be able to use I2C requests to set those bits along
* with VBUS switching and overcurrent detection.
*/
if (cpu_class_is_omap1() && nwires != 6) {
u32 l;
l = omap_readl(USB_TRANSCEIVER_CTRL);
l &= ~CONF_USB2_UNI_R;
omap_writel(l, USB_TRANSCEIVER_CTRL);
}
switch (nwires) {
case 3:
syscon1 = 2;
if (cpu_is_omap24xx())
omap2_usb_devconf_set(0, USB_BIDIR);
break;
case 4:
syscon1 = 1;
if (cpu_is_omap24xx())
omap2_usb_devconf_set(0, USB_BIDIR);
break;
case 6:
syscon1 = 3;
if (cpu_is_omap24xx()) {
omap_cfg_reg(J19_24XX_USB0_VP);
omap_cfg_reg(K20_24XX_USB0_VM);
omap2_usb_devconf_set(0, USB_UNIDIR);
} else {
u32 l;
omap_cfg_reg(AA9_USB0_VP);
omap_cfg_reg(R9_USB0_VM);
l = omap_readl(USB_TRANSCEIVER_CTRL);
l |= CONF_USB2_UNI_R;
omap_writel(l, USB_TRANSCEIVER_CTRL);
}
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())
omap2_usb_devconf_clear(0, USB_BIDIR_TLL);
if (nwires == 0) {
if (cpu_class_is_omap1() && !cpu_is_omap15xx()) {
u32 l;
l = omap_readl(USB_TRANSCEIVER_CTRL);
l &= ~(3 << 1);
omap_writel(l, USB_TRANSCEIVER_CTRL);
}
return 0;
}
if (is_device) {
if (cpu_is_omap24xx())
omap_cfg_reg(J20_24XX_USB0_PUEN);
else
omap_cfg_reg(W4_USB_PUEN);
}
if (!cpu_class_is_omap2() && nwires == 2) {
u32 l;
if (cpu_is_omap15xx()) {
return 0;
}
l = omap_readl(USB_TRANSCEIVER_CTRL);
l &= ~(7 << 4);
if (!is_device)
l |= (3 << 1);
omap_writel(l, USB_TRANSCEIVER_CTRL);
return 3 << 16;
}
if (cpu_is_omap15xx()) {
printk(KERN_ERR "no usb0 alt pin config on 15xx\n");
return 0;
}
if (cpu_is_omap24xx()) {
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);
} else {
omap_cfg_reg(V6_USB0_TXD);
omap_cfg_reg(W9_USB0_TXEN);
omap_cfg_reg(W5_USB0_SE0);
if (nwires != 3)
omap_cfg_reg(Y5_USB0_RCV);
}
if (cpu_class_is_omap1() && nwires != 6) {
u32 l;
l = omap_readl(USB_TRANSCEIVER_CTRL);
l &= ~CONF_USB2_UNI_R;
omap_writel(l, USB_TRANSCEIVER_CTRL);
}
switch (nwires) {
case 3:
syscon1 = 2;
if (cpu_is_omap24xx())
omap2_usb_devconf_set(0, USB_BIDIR);
break;
case 4:
syscon1 = 1;
if (cpu_is_omap24xx())
omap2_usb_devconf_set(0, USB_BIDIR);
break;
case 6:
syscon1 = 3;
if (cpu_is_omap24xx()) {
omap_cfg_reg(J19_24XX_USB0_VP);
omap_cfg_reg(K20_24XX_USB0_VM);
omap2_usb_devconf_set(0, USB_UNIDIR);
} else {
u32 l;
omap_cfg_reg(AA9_USB0_VP);
omap_cfg_reg(R9_USB0_VM);
l = omap_readl(USB_TRANSCEIVER_CTRL);
l |= CONF_USB2_UNI_R;
omap_writel(l, USB_TRANSCEIVER_CTRL);
}
break;
default:
printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
0, nwires);
}
return syscon1 << 16;
}
static u32 __init omap_usb1_init(unsigned nwires)
{
u32 syscon1 = 0;
if (cpu_class_is_omap1() && !cpu_is_omap15xx() && nwires != 6) {
u32 l;
l = omap_readl(USB_TRANSCEIVER_CTRL);
l &= ~CONF_USB1_UNI_R;
omap_writel(l, USB_TRANSCEIVER_CTRL);
}
if (cpu_is_omap24xx())
omap2_usb_devconf_clear(1, USB_BIDIR_TLL);
if (nwires == 0)
return 0;
if (cpu_class_is_omap1()) {
omap_cfg_reg(USB1_TXD);
omap_cfg_reg(USB1_TXEN);
if (nwires != 3)
omap_cfg_reg(USB1_RCV);
}
if (cpu_is_omap15xx()) {
omap_cfg_reg(USB1_SEO);
omap_cfg_reg(USB1_SPEED);
} else if (cpu_is_omap1610() || cpu_is_omap5912()) {
omap_cfg_reg(W13_1610_USB1_SE0);
omap_cfg_reg(R13_1610_USB1_SPEED);
} else if (cpu_is_omap1710()) {
omap_cfg_reg(R13_1710_USB1_SE0);
} else if (cpu_is_omap24xx()) {
} else {
pr_debug("usb%d cpu unrecognized\n", 1);
return 0;
}
switch (nwires) {
case 2:
if (!cpu_is_omap24xx())
goto bad;
syscon1 = 1;
omap2_usb_devconf_set(1, USB_BIDIR_TLL);
break;
case 3:
syscon1 = 2;
if (cpu_is_omap24xx())
omap2_usb_devconf_set(1, USB_BIDIR);
break;
case 4:
syscon1 = 1;
if (cpu_is_omap24xx())
omap2_usb_devconf_set(1, USB_BIDIR);
break;
case 6:
if (cpu_is_omap24xx())
goto bad;
syscon1 = 3;
omap_cfg_reg(USB1_VP);
omap_cfg_reg(USB1_VM);
if (!cpu_is_omap15xx()) {
u32 l;
l = omap_readl(USB_TRANSCEIVER_CTRL);
l |= CONF_USB1_UNI_R;
omap_writel(l, USB_TRANSCEIVER_CTRL);
}
break;
default:
bad:
printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
1, nwires);
}
return syscon1 << 20;
}