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arm: omap4: usb: add platform init code for EHCI
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- Add platform init code for EHCI on OMAP4
- Add pad configuration for PHY and TLL modes

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
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Anand Gadiyar committed Nov 30, 2010
1 parent 811406c commit becf073
Showing 1 changed file with 136 additions and 8 deletions.
144 changes: 136 additions & 8 deletions arch/arm/mach-omap2/usb-ehci.c
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Original file line number Diff line number Diff line change
Expand Up @@ -34,22 +34,15 @@

static struct resource ehci_resources[] = {
{
.start = OMAP34XX_EHCI_BASE,
.end = OMAP34XX_EHCI_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = OMAP34XX_UHH_CONFIG_BASE,
.end = OMAP34XX_UHH_CONFIG_BASE + SZ_1K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = OMAP34XX_USBTLL_BASE,
.end = OMAP34XX_USBTLL_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
{ /* general IRQ */
.start = INT_34XX_EHCI_IRQ,
.flags = IORESOURCE_IRQ,
}
};
Expand Down Expand Up @@ -214,13 +207,148 @@ static void setup_ehci_io_mux(const enum ehci_hcd_omap_mode *port_mode)
return;
}

static void setup_4430ehci_io_mux(const enum ehci_hcd_omap_mode *port_mode)
{
switch (port_mode[0]) {
case EHCI_HCD_OMAP_MODE_PHY:
omap_mux_init_signal("usbb1_ulpiphy_stp",
OMAP_PIN_OUTPUT);
omap_mux_init_signal("usbb1_ulpiphy_clk",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpiphy_dir",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpiphy_nxt",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpiphy_dat0",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpiphy_dat1",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpiphy_dat2",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpiphy_dat3",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpiphy_dat4",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpiphy_dat5",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpiphy_dat6",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpiphy_dat7",
OMAP_PIN_INPUT_PULLDOWN);
break;
case EHCI_HCD_OMAP_MODE_TLL:
omap_mux_init_signal("usbb1_ulpitll_stp",
OMAP_PIN_INPUT_PULLUP);
omap_mux_init_signal("usbb1_ulpitll_clk",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpitll_dir",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpitll_nxt",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpitll_dat0",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpitll_dat1",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpitll_dat2",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpitll_dat3",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpitll_dat4",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpitll_dat5",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpitll_dat6",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb1_ulpitll_dat7",
OMAP_PIN_INPUT_PULLDOWN);
break;
case EHCI_HCD_OMAP_MODE_UNKNOWN:
default:
break;
}
switch (port_mode[1]) {
case EHCI_HCD_OMAP_MODE_PHY:
omap_mux_init_signal("usbb2_ulpiphy_stp",
OMAP_PIN_OUTPUT);
omap_mux_init_signal("usbb2_ulpiphy_clk",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpiphy_dir",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpiphy_nxt",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpiphy_dat0",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpiphy_dat1",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpiphy_dat2",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpiphy_dat3",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpiphy_dat4",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpiphy_dat5",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpiphy_dat6",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpiphy_dat7",
OMAP_PIN_INPUT_PULLDOWN);
break;
case EHCI_HCD_OMAP_MODE_TLL:
omap_mux_init_signal("usbb2_ulpitll_stp",
OMAP_PIN_INPUT_PULLUP);
omap_mux_init_signal("usbb2_ulpitll_clk",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpitll_dir",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpitll_nxt",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpitll_dat0",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpitll_dat1",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpitll_dat2",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpitll_dat3",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpitll_dat4",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpitll_dat5",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpitll_dat6",
OMAP_PIN_INPUT_PULLDOWN);
omap_mux_init_signal("usbb2_ulpitll_dat7",
OMAP_PIN_INPUT_PULLDOWN);
break;
case EHCI_HCD_OMAP_MODE_UNKNOWN:
default:
break;
}
}

void __init usb_ehci_init(const struct ehci_hcd_omap_platform_data *pdata)
{
platform_device_add_data(&ehci_device, pdata, sizeof(*pdata));

/* Setup Pin IO MUX for EHCI */
if (cpu_is_omap34xx())
if (cpu_is_omap34xx()) {
ehci_resources[0].start = OMAP34XX_EHCI_BASE;
ehci_resources[0].end = OMAP34XX_EHCI_BASE + SZ_1K - 1;
ehci_resources[1].start = OMAP34XX_UHH_CONFIG_BASE;
ehci_resources[1].end = OMAP34XX_UHH_CONFIG_BASE + SZ_1K - 1;
ehci_resources[2].start = OMAP34XX_USBTLL_BASE;
ehci_resources[2].end = OMAP34XX_USBTLL_BASE + SZ_4K - 1;
ehci_resources[3].start = INT_34XX_EHCI_IRQ;
setup_ehci_io_mux(pdata->port_mode);
} else if (cpu_is_omap44xx()) {
ehci_resources[0].start = OMAP44XX_HSUSB_EHCI_BASE;
ehci_resources[0].end = OMAP44XX_HSUSB_EHCI_BASE + SZ_1K - 1;
ehci_resources[1].start = OMAP44XX_UHH_CONFIG_BASE;
ehci_resources[1].end = OMAP44XX_UHH_CONFIG_BASE + SZ_2K - 1;
ehci_resources[2].start = OMAP44XX_USBTLL_BASE;
ehci_resources[2].end = OMAP44XX_USBTLL_BASE + SZ_4K - 1;
ehci_resources[3].start = OMAP44XX_IRQ_EHCI;
setup_4430ehci_io_mux(pdata->port_mode);
}

if (platform_device_register(&ehci_device) < 0) {
printk(KERN_ERR "Unable to register HS-USB (EHCI) device\n");
Expand Down

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