cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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usb-da8xx.c (3478B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * DA8xx USB
      4 */
      5#include <linux/clk-provider.h>
      6#include <linux/delay.h>
      7#include <linux/dma-mapping.h>
      8#include <linux/init.h>
      9#include <linux/mfd/da8xx-cfgchip.h>
     10#include <linux/mfd/syscon.h>
     11#include <linux/phy/phy.h>
     12#include <linux/platform_data/clk-da8xx-cfgchip.h>
     13#include <linux/platform_data/phy-da8xx-usb.h>
     14#include <linux/platform_data/usb-davinci.h>
     15#include <linux/platform_device.h>
     16#include <linux/usb/musb.h>
     17
     18#include "common.h"
     19#include "cputype.h"
     20#include "da8xx.h"
     21#include "irqs.h"
     22
     23#define DA8XX_USB0_BASE		0x01e00000
     24#define DA8XX_USB1_BASE		0x01e25000
     25
     26#ifndef CONFIG_COMMON_CLK
     27static struct clk *usb20_clk;
     28#endif
     29
     30static struct da8xx_usb_phy_platform_data da8xx_usb_phy_pdata;
     31
     32static struct platform_device da8xx_usb_phy = {
     33	.name		= "da8xx-usb-phy",
     34	.id		= -1,
     35	.dev		= {
     36		/*
     37		 * Setting init_name so that clock lookup will work in
     38		 * da8xx_register_usb11_phy_clk() even if this device is not
     39		 * registered yet.
     40		 */
     41		.init_name	= "da8xx-usb-phy",
     42		.platform_data	= &da8xx_usb_phy_pdata,
     43	},
     44};
     45
     46int __init da8xx_register_usb_phy(void)
     47{
     48	da8xx_usb_phy_pdata.cfgchip = da8xx_get_cfgchip();
     49
     50	return platform_device_register(&da8xx_usb_phy);
     51}
     52
     53static struct musb_hdrc_config musb_config = {
     54	.multipoint	= true,
     55	.num_eps	= 5,
     56	.ram_bits	= 10,
     57};
     58
     59static struct musb_hdrc_platform_data usb_data = {
     60	/* OTG requires a Mini-AB connector */
     61	.mode           = MUSB_OTG,
     62	.clock		= "usb20",
     63	.config		= &musb_config,
     64};
     65
     66static struct resource da8xx_usb20_resources[] = {
     67	{
     68		.start		= DA8XX_USB0_BASE,
     69		.end		= DA8XX_USB0_BASE + SZ_64K - 1,
     70		.flags		= IORESOURCE_MEM,
     71	},
     72	{
     73		.start		= DAVINCI_INTC_IRQ(IRQ_DA8XX_USB_INT),
     74		.flags		= IORESOURCE_IRQ,
     75		.name		= "mc",
     76	},
     77};
     78
     79static u64 usb_dmamask = DMA_BIT_MASK(32);
     80
     81static struct platform_device da8xx_usb20_dev = {
     82	.name		= "musb-da8xx",
     83	.id             = -1,
     84	.dev = {
     85		.platform_data		= &usb_data,
     86		.dma_mask		= &usb_dmamask,
     87		.coherent_dma_mask      = DMA_BIT_MASK(32),
     88	},
     89	.resource	= da8xx_usb20_resources,
     90	.num_resources	= ARRAY_SIZE(da8xx_usb20_resources),
     91};
     92
     93int __init da8xx_register_usb20(unsigned int mA, unsigned int potpgt)
     94{
     95	usb_data.power	= mA > 510 ? 255 : mA / 2;
     96	usb_data.potpgt = (potpgt + 1) / 2;
     97
     98	return platform_device_register(&da8xx_usb20_dev);
     99}
    100
    101static struct resource da8xx_usb11_resources[] = {
    102	[0] = {
    103		.start	= DA8XX_USB1_BASE,
    104		.end	= DA8XX_USB1_BASE + SZ_4K - 1,
    105		.flags	= IORESOURCE_MEM,
    106	},
    107	[1] = {
    108		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_IRQN),
    109		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_IRQN),
    110		.flags	= IORESOURCE_IRQ,
    111	},
    112};
    113
    114static u64 da8xx_usb11_dma_mask = DMA_BIT_MASK(32);
    115
    116static struct platform_device da8xx_usb11_device = {
    117	.name		= "ohci-da8xx",
    118	.id		= -1,
    119	.dev = {
    120		.dma_mask		= &da8xx_usb11_dma_mask,
    121		.coherent_dma_mask	= DMA_BIT_MASK(32),
    122	},
    123	.num_resources	= ARRAY_SIZE(da8xx_usb11_resources),
    124	.resource	= da8xx_usb11_resources,
    125};
    126
    127int __init da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata)
    128{
    129	da8xx_usb11_device.dev.platform_data = pdata;
    130	return platform_device_register(&da8xx_usb11_device);
    131}
    132
    133static struct platform_device da8xx_usb_phy_clks_device = {
    134	.name		= "da830-usb-phy-clks",
    135	.id		= -1,
    136};
    137
    138int __init da8xx_register_usb_phy_clocks(void)
    139{
    140	struct da8xx_cfgchip_clk_platform_data pdata;
    141
    142	pdata.cfgchip = da8xx_get_cfgchip();
    143	da8xx_usb_phy_clks_device.dev.platform_data = &pdata;
    144
    145	return platform_device_register(&da8xx_usb_phy_clks_device);
    146}