This function is going to be reused with the CONFIG_DM_USB enabled in the imx28 mxs USB ehci driver.
No functional changes introduced.
Signed-off-by: Lukasz Majewski lukma@denx.de ---
drivers/usb/host/ehci-mxs.c | 42 ++++++++++++++++++------------------- 1 file changed, 21 insertions(+), 21 deletions(-)
diff --git a/drivers/usb/host/ehci-mxs.c b/drivers/usb/host/ehci-mxs.c index 824c620e638..a9d5d58970a 100644 --- a/drivers/usb/host/ehci-mxs.c +++ b/drivers/usb/host/ehci-mxs.c @@ -29,6 +29,27 @@ struct ehci_mxs_port { uint32_t gate_bits; };
+static int ehci_mxs_toggle_clock(const struct ehci_mxs_port *port, int enable) +{ + struct mxs_register_32 *digctl_ctrl = + (struct mxs_register_32 *)HW_DIGCTL_CTRL; + int pll_offset, dig_offset; + + if (enable) { + pll_offset = offsetof(struct mxs_register_32, reg_set); + dig_offset = offsetof(struct mxs_register_32, reg_clr); + writel(port->gate_bits, (u32)&digctl_ctrl->reg + dig_offset); + writel(port->pll_en_bits, (u32)port->pll + pll_offset); + } else { + pll_offset = offsetof(struct mxs_register_32, reg_clr); + dig_offset = offsetof(struct mxs_register_32, reg_set); + writel(port->pll_dis_bits, (u32)port->pll + pll_offset); + writel(port->gate_bits, (u32)&digctl_ctrl->reg + dig_offset); + } + + return 0; +} + static const struct ehci_mxs_port mxs_port[] = { #ifdef CONFIG_EHCI_MXS_PORT0 { @@ -56,27 +77,6 @@ static const struct ehci_mxs_port mxs_port[] = { #endif };
-static int ehci_mxs_toggle_clock(const struct ehci_mxs_port *port, int enable) -{ - struct mxs_register_32 *digctl_ctrl = - (struct mxs_register_32 *)HW_DIGCTL_CTRL; - int pll_offset, dig_offset; - - if (enable) { - pll_offset = offsetof(struct mxs_register_32, reg_set); - dig_offset = offsetof(struct mxs_register_32, reg_clr); - writel(port->gate_bits, (u32)&digctl_ctrl->reg + dig_offset); - writel(port->pll_en_bits, (u32)port->pll + pll_offset); - } else { - pll_offset = offsetof(struct mxs_register_32, reg_clr); - dig_offset = offsetof(struct mxs_register_32, reg_set); - writel(port->pll_dis_bits, (u32)port->pll + pll_offset); - writel(port->gate_bits, (u32)&digctl_ctrl->reg + dig_offset); - } - - return 0; -} - int __weak board_ehci_hcd_init(int port) { return 0;