148 строки
3.4 KiB
C
148 строки
3.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* DA8xx USB
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*/
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#include <linux/clk-provider.h>
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#include <linux/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/init.h>
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#include <linux/mfd/da8xx-cfgchip.h>
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#include <linux/mfd/syscon.h>
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#include <linux/phy/phy.h>
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#include <linux/platform_data/clk-da8xx-cfgchip.h>
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#include <linux/platform_data/phy-da8xx-usb.h>
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#include <linux/platform_data/usb-davinci.h>
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#include <linux/platform_device.h>
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#include <linux/usb/musb.h>
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#include <mach/common.h>
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#include <mach/cputype.h>
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#include <mach/da8xx.h>
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#include "irqs.h"
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#define DA8XX_USB0_BASE 0x01e00000
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#define DA8XX_USB1_BASE 0x01e25000
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#ifndef CONFIG_COMMON_CLK
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static struct clk *usb20_clk;
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#endif
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static struct da8xx_usb_phy_platform_data da8xx_usb_phy_pdata;
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static struct platform_device da8xx_usb_phy = {
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.name = "da8xx-usb-phy",
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.id = -1,
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.dev = {
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/*
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* Setting init_name so that clock lookup will work in
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* da8xx_register_usb11_phy_clk() even if this device is not
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* registered yet.
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*/
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.init_name = "da8xx-usb-phy",
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.platform_data = &da8xx_usb_phy_pdata,
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},
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};
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int __init da8xx_register_usb_phy(void)
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{
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da8xx_usb_phy_pdata.cfgchip = da8xx_get_cfgchip();
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return platform_device_register(&da8xx_usb_phy);
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}
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static struct musb_hdrc_config musb_config = {
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.multipoint = true,
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.num_eps = 5,
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.ram_bits = 10,
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};
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static struct musb_hdrc_platform_data usb_data = {
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/* OTG requires a Mini-AB connector */
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.mode = MUSB_OTG,
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.clock = "usb20",
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.config = &musb_config,
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};
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static struct resource da8xx_usb20_resources[] = {
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{
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.start = DA8XX_USB0_BASE,
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.end = DA8XX_USB0_BASE + SZ_64K - 1,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = DAVINCI_INTC_IRQ(IRQ_DA8XX_USB_INT),
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.flags = IORESOURCE_IRQ,
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.name = "mc",
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},
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};
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static u64 usb_dmamask = DMA_BIT_MASK(32);
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static struct platform_device da8xx_usb20_dev = {
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.name = "musb-da8xx",
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.id = -1,
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.dev = {
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.platform_data = &usb_data,
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.dma_mask = &usb_dmamask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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.resource = da8xx_usb20_resources,
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.num_resources = ARRAY_SIZE(da8xx_usb20_resources),
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};
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int __init da8xx_register_usb20(unsigned int mA, unsigned int potpgt)
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{
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usb_data.power = mA > 510 ? 255 : mA / 2;
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usb_data.potpgt = (potpgt + 1) / 2;
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return platform_device_register(&da8xx_usb20_dev);
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}
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static struct resource da8xx_usb11_resources[] = {
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[0] = {
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.start = DA8XX_USB1_BASE,
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.end = DA8XX_USB1_BASE + SZ_4K - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = DAVINCI_INTC_IRQ(IRQ_DA8XX_IRQN),
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.end = DAVINCI_INTC_IRQ(IRQ_DA8XX_IRQN),
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.flags = IORESOURCE_IRQ,
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},
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};
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static u64 da8xx_usb11_dma_mask = DMA_BIT_MASK(32);
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static struct platform_device da8xx_usb11_device = {
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.name = "ohci-da8xx",
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.id = -1,
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.dev = {
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.dma_mask = &da8xx_usb11_dma_mask,
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.coherent_dma_mask = DMA_BIT_MASK(32),
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},
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.num_resources = ARRAY_SIZE(da8xx_usb11_resources),
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.resource = da8xx_usb11_resources,
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};
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int __init da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata)
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{
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da8xx_usb11_device.dev.platform_data = pdata;
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return platform_device_register(&da8xx_usb11_device);
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}
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static struct platform_device da8xx_usb_phy_clks_device = {
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.name = "da830-usb-phy-clks",
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.id = -1,
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};
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int __init da8xx_register_usb_phy_clocks(void)
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{
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struct da8xx_cfgchip_clk_platform_data pdata;
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pdata.cfgchip = da8xx_get_cfgchip();
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da8xx_usb_phy_clks_device.dev.platform_data = &pdata;
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return platform_device_register(&da8xx_usb_phy_clks_device);
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}
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