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ARM: shmobile: kzm9g: enable USB function
This patch enable USB function on CN17 Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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0fcc6d5502
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@ -100,7 +100,12 @@ CONFIG_SND_SOC_SH4_FSI=y
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CONFIG_USB=y
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CONFIG_USB_DEVICEFS=y
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CONFIG_USB_R8A66597_HCD=y
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CONFIG_USB_RENESAS_USBHS=y
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CONFIG_USB_STORAGE=y
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CONFIG_USB_GADGET=y
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CONFIG_USB_RENESAS_USBHS_UDC=y
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CONFIG_USB_ETH=m
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CONFIG_USB_MASS_STORAGE=m
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CONFIG_MMC=y
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# CONFIG_MMC_BLOCK_BOUNCE is not set
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CONFIG_MMC_SDHI=y
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@ -32,6 +32,7 @@
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#include <linux/platform_device.h>
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#include <linux/smsc911x.h>
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#include <linux/usb/r8a66597.h>
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#include <linux/usb/renesas_usbhs.h>
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#include <linux/videodev2.h>
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#include <sound/sh_fsi.h>
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#include <sound/simple_card.h>
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@ -122,6 +123,151 @@ static struct platform_device usb_host_device = {
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.resource = usb_resources,
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};
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/* USB Func CN17 */
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struct usbhs_private {
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unsigned int phy;
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unsigned int cr2;
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struct renesas_usbhs_platform_info info;
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};
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#define IRQ15 intcs_evt2irq(0x03e0)
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#define USB_PHY_MODE (1 << 4)
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#define USB_PHY_INT_EN ((1 << 3) | (1 << 2))
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#define USB_PHY_ON (1 << 1)
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#define USB_PHY_OFF (1 << 0)
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#define USB_PHY_INT_CLR (USB_PHY_ON | USB_PHY_OFF)
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#define usbhs_get_priv(pdev) \
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container_of(renesas_usbhs_get_info(pdev), struct usbhs_private, info)
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static int usbhs_get_vbus(struct platform_device *pdev)
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{
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struct usbhs_private *priv = usbhs_get_priv(pdev);
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return !((1 << 7) & __raw_readw(priv->cr2));
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}
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static void usbhs_phy_reset(struct platform_device *pdev)
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{
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struct usbhs_private *priv = usbhs_get_priv(pdev);
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/* init phy */
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__raw_writew(0x8a0a, priv->cr2);
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}
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static int usbhs_get_id(struct platform_device *pdev)
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{
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return USBHS_GADGET;
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}
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static irqreturn_t usbhs_interrupt(int irq, void *data)
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{
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struct platform_device *pdev = data;
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struct usbhs_private *priv = usbhs_get_priv(pdev);
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renesas_usbhs_call_notify_hotplug(pdev);
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/* clear status */
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__raw_writew(__raw_readw(priv->phy) | USB_PHY_INT_CLR, priv->phy);
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return IRQ_HANDLED;
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}
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static int usbhs_hardware_init(struct platform_device *pdev)
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{
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struct usbhs_private *priv = usbhs_get_priv(pdev);
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int ret;
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/* clear interrupt status */
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__raw_writew(USB_PHY_MODE | USB_PHY_INT_CLR, priv->phy);
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ret = request_irq(IRQ15, usbhs_interrupt, IRQF_TRIGGER_HIGH,
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dev_name(&pdev->dev), pdev);
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if (ret) {
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dev_err(&pdev->dev, "request_irq err\n");
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return ret;
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}
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/* enable USB phy interrupt */
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__raw_writew(USB_PHY_MODE | USB_PHY_INT_EN, priv->phy);
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return 0;
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}
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static void usbhs_hardware_exit(struct platform_device *pdev)
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{
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struct usbhs_private *priv = usbhs_get_priv(pdev);
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/* clear interrupt status */
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__raw_writew(USB_PHY_MODE | USB_PHY_INT_CLR, priv->phy);
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free_irq(IRQ15, pdev);
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}
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static u32 usbhs_pipe_cfg[] = {
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USB_ENDPOINT_XFER_CONTROL,
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USB_ENDPOINT_XFER_ISOC,
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USB_ENDPOINT_XFER_ISOC,
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USB_ENDPOINT_XFER_BULK,
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USB_ENDPOINT_XFER_BULK,
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USB_ENDPOINT_XFER_BULK,
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USB_ENDPOINT_XFER_INT,
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USB_ENDPOINT_XFER_INT,
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USB_ENDPOINT_XFER_INT,
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USB_ENDPOINT_XFER_BULK,
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USB_ENDPOINT_XFER_BULK,
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USB_ENDPOINT_XFER_BULK,
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USB_ENDPOINT_XFER_BULK,
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USB_ENDPOINT_XFER_BULK,
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USB_ENDPOINT_XFER_BULK,
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USB_ENDPOINT_XFER_BULK,
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};
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static struct usbhs_private usbhs_private = {
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.phy = 0xe60781e0, /* USBPHYINT */
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.cr2 = 0xe605810c, /* USBCR2 */
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.info = {
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.platform_callback = {
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.hardware_init = usbhs_hardware_init,
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.hardware_exit = usbhs_hardware_exit,
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.get_id = usbhs_get_id,
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.phy_reset = usbhs_phy_reset,
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.get_vbus = usbhs_get_vbus,
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},
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.driver_param = {
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.buswait_bwait = 4,
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.has_otg = 1,
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.pipe_type = usbhs_pipe_cfg,
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.pipe_size = ARRAY_SIZE(usbhs_pipe_cfg),
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},
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},
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};
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static struct resource usbhs_resources[] = {
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[0] = {
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.start = 0xE6890000,
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.end = 0xE68900e6 - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = gic_spi(62),
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.end = gic_spi(62),
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device usbhs_device = {
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.name = "renesas_usbhs",
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.id = -1,
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.dev = {
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.dma_mask = NULL,
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.coherent_dma_mask = 0xffffffff,
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.platform_data = &usbhs_private.info,
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},
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.num_resources = ARRAY_SIZE(usbhs_resources),
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.resource = usbhs_resources,
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};
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/* LCDC */
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static struct fb_videomode kzm_lcdc_mode = {
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.name = "WVGA Panel",
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@ -361,6 +507,7 @@ static struct i2c_board_info i2c3_devices[] = {
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static struct platform_device *kzm_devices[] __initdata = {
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&smsc_device,
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&usb_host_device,
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&usbhs_device,
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&lcdc_device,
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&mmc_device,
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&sdhi0_device,
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@ -512,6 +659,9 @@ static void __init kzm_init(void)
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gpio_request(GPIO_FN_FSIAISLD, NULL);
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gpio_request(GPIO_FN_FSIAOSLD, NULL);
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/* enable USB */
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gpio_request(GPIO_FN_VBUS_0, NULL);
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#ifdef CONFIG_CACHE_L2X0
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/* Early BRESP enable, Shared attribute override enable, 64K*8way */
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l2x0_init(IOMEM(0xf0100000), 0x40460000, 0x82000fff);
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