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usb: sunxi: Simplify ccm reg base code

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Move struct sunxi_ccm_reg pointer to private structure
so-that accessing ccm reg base become more proper way
and avoid local initialization in each function.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Jun Nie <jun.nie@linaro.org>
This commit is contained in:
Jagan Teki 2018-05-07 13:03:17 +05:30
parent 3def2f8dbb
commit 831cc98b1f
3 changed files with 43 additions and 25 deletions
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15
drivers/usb/host/ehci-sunxi.c
View file

@ -26,19 +26,23 @@
struct ehci_sunxi_priv {
struct ehci_ctrl ehci;
struct sunxi_ccm_reg *ccm;
int ahb_gate_mask; /* Mask of ahb_gate0 clk gate bits for this hcd */
int phy_index; /* Index of the usb-phy attached to this hcd */
};
static int ehci_usb_probe(struct udevice *dev)
{
struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
struct usb_platdata *plat = dev_get_platdata(dev);
struct ehci_sunxi_priv *priv = dev_get_priv(dev);
struct ehci_hccr *hccr = (struct ehci_hccr *)devfdt_get_addr(dev);
struct ehci_hcor *hcor;
int extra_ahb_gate_mask = 0;
priv->ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
if (IS_ERR(priv->ccm))
return PTR_ERR(priv->ccm);
/*
* This should go away once we've moved to the driver model for
* clocks resp. phys.
@ -52,10 +56,10 @@ static int ehci_usb_probe(struct udevice *dev)
extra_ahb_gate_mask <<= priv->phy_index * AHB_CLK_DIST;
priv->phy_index++; /* Non otg phys start at 1 */
setbits_le32(&ccm->ahb_gate0,
setbits_le32(&priv->ccm->ahb_gate0,
priv->ahb_gate_mask | extra_ahb_gate_mask);
#ifdef CONFIG_SUNXI_GEN_SUN6I
setbits_le32(&ccm->ahb_reset0_cfg,
setbits_le32(&priv->ccm->ahb_reset0_cfg,
priv->ahb_gate_mask | extra_ahb_gate_mask);
#endif
@ -70,7 +74,6 @@ static int ehci_usb_probe(struct udevice *dev)
static int ehci_usb_remove(struct udevice *dev)
{
struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
struct ehci_sunxi_priv *priv = dev_get_priv(dev);
int ret;
@ -81,9 +84,9 @@ static int ehci_usb_remove(struct udevice *dev)
sunxi_usb_phy_exit(priv->phy_index);
#ifdef CONFIG_SUNXI_GEN_SUN6I
clrbits_le32(&ccm->ahb_reset0_cfg, priv->ahb_gate_mask);
clrbits_le32(&priv->ccm->ahb_reset0_cfg, priv->ahb_gate_mask);
#endif
clrbits_le32(&ccm->ahb_gate0, priv->ahb_gate_mask);
clrbits_le32(&priv->ccm->ahb_gate0, priv->ahb_gate_mask);
return 0;
}

19
drivers/usb/host/ohci-sunxi.c
View file

@ -25,6 +25,7 @@
#endif
struct ohci_sunxi_priv {
struct sunxi_ccm_reg *ccm;
ohci_t ohci;
int ahb_gate_mask; /* Mask of ahb_gate0 clk gate bits for this hcd */
int usb_gate_mask; /* Mask of usb_clk_cfg clk gate bits for this hcd */
@ -33,12 +34,15 @@ struct ohci_sunxi_priv {
static int ohci_usb_probe(struct udevice *dev)
{
struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
struct usb_bus_priv *bus_priv = dev_get_uclass_priv(dev);
struct ohci_sunxi_priv *priv = dev_get_priv(dev);
struct ohci_regs *regs = (struct ohci_regs *)devfdt_get_addr(dev);
int extra_ahb_gate_mask = 0;
priv->ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
if (IS_ERR(priv->ccm))
return PTR_ERR(priv->ccm);
bus_priv->companion = true;
/*
@ -56,11 +60,11 @@ static int ohci_usb_probe(struct udevice *dev)
priv->usb_gate_mask <<= priv->phy_index;
priv->phy_index++; /* Non otg phys start at 1 */
setbits_le32(&ccm->ahb_gate0,
setbits_le32(&priv->ccm->ahb_gate0,
priv->ahb_gate_mask | extra_ahb_gate_mask);
setbits_le32(&ccm->usb_clk_cfg, priv->usb_gate_mask);
setbits_le32(&priv->ccm->usb_clk_cfg, priv->usb_gate_mask);
#ifdef CONFIG_SUNXI_GEN_SUN6I
setbits_le32(&ccm->ahb_reset0_cfg,
setbits_le32(&priv->ccm->ahb_reset0_cfg,
priv->ahb_gate_mask | extra_ahb_gate_mask);
#endif
@ -72,7 +76,6 @@ static int ohci_usb_probe(struct udevice *dev)
static int ohci_usb_remove(struct udevice *dev)
{
struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
struct ohci_sunxi_priv *priv = dev_get_priv(dev);
int ret;
@ -83,10 +86,10 @@ static int ohci_usb_remove(struct udevice *dev)
sunxi_usb_phy_exit(priv->phy_index);
#ifdef CONFIG_SUNXI_GEN_SUN6I
clrbits_le32(&ccm->ahb_reset0_cfg, priv->ahb_gate_mask);
clrbits_le32(&priv->ccm->ahb_reset0_cfg, priv->ahb_gate_mask);
#endif
clrbits_le32(&ccm->usb_clk_cfg, priv->usb_gate_mask);
clrbits_le32(&ccm->ahb_gate0, priv->ahb_gate_mask);
clrbits_le32(&priv->ccm->usb_clk_cfg, priv->usb_gate_mask);
clrbits_le32(&priv->ccm->ahb_gate0, priv->ahb_gate_mask);
return 0;
}

34
drivers/usb/musb-new/sunxi.c
View file

@ -75,6 +75,13 @@
* From usbc/usbc.c
******************************************************************************/
struct sunxi_glue {
struct musb_host_data mdata;
struct sunxi_ccm_reg *ccm;
struct device dev;
};
#define to_sunxi_glue(d) container_of(d, struct sunxi_glue, dev)
static u32 USBC_WakeUp_ClearChangeDetect(u32 reg_val)
{
u32 temp = reg_val;
@ -255,15 +262,15 @@ static void sunxi_musb_disable(struct musb *musb)
static int sunxi_musb_init(struct musb *musb)
{
struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
struct sunxi_glue *glue = to_sunxi_glue(musb->controller);
pr_debug("%s():\n", __func__);
musb->isr = sunxi_musb_interrupt;
setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0);
setbits_le32(&glue->ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0);
#ifdef CONFIG_SUNXI_GEN_SUN6I
setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_GATE_OFFSET_USB0);
setbits_le32(&glue->ccm->ahb_reset0_cfg, 1 << AHB_GATE_OFFSET_USB0);
#endif
sunxi_usb_phy_init(0);
@ -309,7 +316,8 @@ static struct musb_hdrc_platform_data musb_plat = {
static int musb_usb_probe(struct udevice *dev)
{
struct musb_host_data *host = dev_get_priv(dev);
struct sunxi_glue *glue = dev_get_priv(dev);
struct musb_host_data *host = &glue->mdata;
struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
void *base = dev_read_addr_ptr(dev);
int ret;
@ -317,10 +325,14 @@ static int musb_usb_probe(struct udevice *dev)
if (!base)
return -EINVAL;
glue->ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
if (IS_ERR(glue->ccm))
return PTR_ERR(glue->ccm);
priv->desc_before_addr = true;
#ifdef CONFIG_USB_MUSB_HOST
host->host = musb_init_controller(&musb_plat, NULL, base);
host->host = musb_init_controller(&musb_plat, &glue->dev, base);
if (!host->host)
return -EIO;
@ -328,7 +340,7 @@ static int musb_usb_probe(struct udevice *dev)
if (!ret)
printf("Allwinner mUSB OTG (Host)\n");
#else
ret = musb_register(&musb_plat, NULL, base);
ret = musb_register(&musb_plat, &glue->dev, base);
if (!ret)
printf("Allwinner mUSB OTG (Peripheral)\n");
#endif
@ -338,16 +350,16 @@ static int musb_usb_probe(struct udevice *dev)
static int musb_usb_remove(struct udevice *dev)
{
struct musb_host_data *host = dev_get_priv(dev);
struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
struct sunxi_glue *glue = dev_get_priv(dev);
struct musb_host_data *host = &glue->mdata;
musb_stop(host->host);
sunxi_usb_phy_exit(0);
#ifdef CONFIG_SUNXI_GEN_SUN6I
clrbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_GATE_OFFSET_USB0);
clrbits_le32(&glue->ccm->ahb_reset0_cfg, 1 << AHB_GATE_OFFSET_USB0);
#endif
clrbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0);
clrbits_le32(&glue->ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_USB0);
free(host->host);
host->host = NULL;
@ -377,5 +389,5 @@ U_BOOT_DRIVER(usb_musb) = {
.ops = &musb_usb_ops,
#endif
.platdata_auto_alloc_size = sizeof(struct usb_platdata),
.priv_auto_alloc_size = sizeof(struct musb_host_data),
.priv_auto_alloc_size = sizeof(struct sunxi_glue),
};