+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * linux/arch/arm/mach-mmp/devices.c
- */
-
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/delay.h>
-
-#include <asm/irq.h>
-#include "irqs.h"
-#include "devices.h"
-#include <linux/soc/mmp/cputype.h>
-#include "regs-usb.h"
-
-int __init mmp_register_device(struct mmp_device_desc *desc,
- void *data, size_t size)
-{
- struct platform_device *pdev;
- struct resource res[2 + MAX_RESOURCE_DMA];
- int i, ret = 0, nres = 0;
-
- pdev = platform_device_alloc(desc->drv_name, desc->id);
- if (pdev == NULL)
- return -ENOMEM;
-
- pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
-
- memset(res, 0, sizeof(res));
-
- if (desc->start != -1ul && desc->size > 0) {
- res[nres].start = desc->start;
- res[nres].end = desc->start + desc->size - 1;
- res[nres].flags = IORESOURCE_MEM;
- nres++;
- }
-
- if (desc->irq != NO_IRQ) {
- res[nres].start = desc->irq;
- res[nres].end = desc->irq;
- res[nres].flags = IORESOURCE_IRQ;
- nres++;
- }
-
- for (i = 0; i < MAX_RESOURCE_DMA; i++, nres++) {
- if (desc->dma[i] == 0)
- break;
-
- res[nres].start = desc->dma[i];
- res[nres].end = desc->dma[i];
- res[nres].flags = IORESOURCE_DMA;
- }
-
- ret = platform_device_add_resources(pdev, res, nres);
- if (ret) {
- platform_device_put(pdev);
- return ret;
- }
-
- if (data && size) {
- ret = platform_device_add_data(pdev, data, size);
- if (ret) {
- platform_device_put(pdev);
- return ret;
- }
- }
-
- return platform_device_add(pdev);
-}
-
-#if IS_ENABLED(CONFIG_USB) || IS_ENABLED(CONFIG_USB_GADGET)
-#if IS_ENABLED(CONFIG_USB_MV_UDC) || IS_ENABLED(CONFIG_USB_EHCI_MV)
-#if IS_ENABLED(CONFIG_CPU_PXA910) || IS_ENABLED(CONFIG_CPU_PXA168)
-
-/*****************************************************************************
- * The registers read/write routines
- *****************************************************************************/
-
-static unsigned int u2o_get(void __iomem *base, unsigned int offset)
-{
- return readl_relaxed(base + offset);
-}
-
-static void u2o_set(void __iomem *base, unsigned int offset,
- unsigned int value)
-{
- u32 reg;
-
- reg = readl_relaxed(base + offset);
- reg |= value;
- writel_relaxed(reg, base + offset);
- readl_relaxed(base + offset);
-}
-
-static void u2o_clear(void __iomem *base, unsigned int offset,
- unsigned int value)
-{
- u32 reg;
-
- reg = readl_relaxed(base + offset);
- reg &= ~value;
- writel_relaxed(reg, base + offset);
- readl_relaxed(base + offset);
-}
-
-static void u2o_write(void __iomem *base, unsigned int offset,
- unsigned int value)
-{
- writel_relaxed(value, base + offset);
- readl_relaxed(base + offset);
-}
-
-
-static DEFINE_MUTEX(phy_lock);
-static int phy_init_cnt;
-
-static int usb_phy_init_internal(void __iomem *base)
-{
- int loops;
-
- pr_info("Init usb phy!!!\n");
-
- /* Initialize the USB PHY power */
- if (cpu_is_pxa910()) {
- u2o_set(base, UTMI_CTRL, (1<<UTMI_CTRL_INPKT_DELAY_SOF_SHIFT)
- | (1<<UTMI_CTRL_PU_REF_SHIFT));
- }
-
- u2o_set(base, UTMI_CTRL, 1<<UTMI_CTRL_PLL_PWR_UP_SHIFT);
- u2o_set(base, UTMI_CTRL, 1<<UTMI_CTRL_PWR_UP_SHIFT);
-
- /* UTMI_PLL settings */
- u2o_clear(base, UTMI_PLL, UTMI_PLL_PLLVDD18_MASK
- | UTMI_PLL_PLLVDD12_MASK | UTMI_PLL_PLLCALI12_MASK
- | UTMI_PLL_FBDIV_MASK | UTMI_PLL_REFDIV_MASK
- | UTMI_PLL_ICP_MASK | UTMI_PLL_KVCO_MASK);
-
- u2o_set(base, UTMI_PLL, 0xee<<UTMI_PLL_FBDIV_SHIFT
- | 0xb<<UTMI_PLL_REFDIV_SHIFT | 3<<UTMI_PLL_PLLVDD18_SHIFT
- | 3<<UTMI_PLL_PLLVDD12_SHIFT | 3<<UTMI_PLL_PLLCALI12_SHIFT
- | 1<<UTMI_PLL_ICP_SHIFT | 3<<UTMI_PLL_KVCO_SHIFT);
-
- /* UTMI_TX */
- u2o_clear(base, UTMI_TX, UTMI_TX_REG_EXT_FS_RCAL_EN_MASK
- | UTMI_TX_TXVDD12_MASK | UTMI_TX_CK60_PHSEL_MASK
- | UTMI_TX_IMPCAL_VTH_MASK | UTMI_TX_REG_EXT_FS_RCAL_MASK
- | UTMI_TX_AMP_MASK);
- u2o_set(base, UTMI_TX, 3<<UTMI_TX_TXVDD12_SHIFT
- | 4<<UTMI_TX_CK60_PHSEL_SHIFT | 4<<UTMI_TX_IMPCAL_VTH_SHIFT
- | 8<<UTMI_TX_REG_EXT_FS_RCAL_SHIFT | 3<<UTMI_TX_AMP_SHIFT);
-
- /* UTMI_RX */
- u2o_clear(base, UTMI_RX, UTMI_RX_SQ_THRESH_MASK
- | UTMI_REG_SQ_LENGTH_MASK);
- u2o_set(base, UTMI_RX, 7<<UTMI_RX_SQ_THRESH_SHIFT
- | 2<<UTMI_REG_SQ_LENGTH_SHIFT);
-
- /* UTMI_IVREF */
- if (cpu_is_pxa168())
- /* fixing Microsoft Altair board interface with NEC hub issue -
- * Set UTMI_IVREF from 0x4a3 to 0x4bf */
- u2o_write(base, UTMI_IVREF, 0x4bf);
-
- /* toggle VCOCAL_START bit of UTMI_PLL */
- udelay(200);
- u2o_set(base, UTMI_PLL, VCOCAL_START);
- udelay(40);
- u2o_clear(base, UTMI_PLL, VCOCAL_START);
-
- /* toggle REG_RCAL_START bit of UTMI_TX */
- udelay(400);
- u2o_set(base, UTMI_TX, REG_RCAL_START);
- udelay(40);
- u2o_clear(base, UTMI_TX, REG_RCAL_START);
- udelay(400);
-
- /* Make sure PHY PLL is ready */
- loops = 0;
- while ((u2o_get(base, UTMI_PLL) & PLL_READY) == 0) {
- mdelay(1);
- loops++;
- if (loops > 100) {
- printk(KERN_WARNING "calibrate timeout, UTMI_PLL %x\n",
- u2o_get(base, UTMI_PLL));
- break;
- }
- }
-
- if (cpu_is_pxa168()) {
- u2o_set(base, UTMI_RESERVE, 1 << 5);
- /* Turn on UTMI PHY OTG extension */
- u2o_write(base, UTMI_OTG_ADDON, 1);
- }
-
- return 0;
-}
-
-static int usb_phy_deinit_internal(void __iomem *base)
-{
- pr_info("Deinit usb phy!!!\n");
-
- if (cpu_is_pxa168())
- u2o_clear(base, UTMI_OTG_ADDON, UTMI_OTG_ADDON_OTG_ON);
-
- u2o_clear(base, UTMI_CTRL, UTMI_CTRL_RXBUF_PDWN);
- u2o_clear(base, UTMI_CTRL, UTMI_CTRL_TXBUF_PDWN);
- u2o_clear(base, UTMI_CTRL, UTMI_CTRL_USB_CLK_EN);
- u2o_clear(base, UTMI_CTRL, 1<<UTMI_CTRL_PWR_UP_SHIFT);
- u2o_clear(base, UTMI_CTRL, 1<<UTMI_CTRL_PLL_PWR_UP_SHIFT);
-
- return 0;
-}
-
-int pxa_usb_phy_init(void __iomem *phy_reg)
-{
- mutex_lock(&phy_lock);
- if (phy_init_cnt++ == 0)
- usb_phy_init_internal(phy_reg);
- mutex_unlock(&phy_lock);
- return 0;
-}
-
-void pxa_usb_phy_deinit(void __iomem *phy_reg)
-{
- WARN_ON(phy_init_cnt == 0);
-
- mutex_lock(&phy_lock);
- if (--phy_init_cnt == 0)
- usb_phy_deinit_internal(phy_reg);
- mutex_unlock(&phy_lock);
-}
-#endif
-#endif
-#endif
-
-#if IS_ENABLED(CONFIG_USB_SUPPORT)
-static u64 __maybe_unused usb_dma_mask = ~(u32)0;
-
-#if IS_ENABLED(CONFIG_PHY_PXA_USB)
-static struct resource pxa168_usb_phy_resources[] = {
- [0] = {
- .start = PXA168_U2O_PHYBASE,
- .end = PXA168_U2O_PHYBASE + USB_PHY_RANGE,
- .flags = IORESOURCE_MEM,
- },
-};
-
-struct platform_device pxa168_device_usb_phy = {
- .name = "pxa-usb-phy",
- .id = -1,
- .resource = pxa168_usb_phy_resources,
- .num_resources = ARRAY_SIZE(pxa168_usb_phy_resources),
- .dev = {
- .dma_mask = &usb_dma_mask,
- .coherent_dma_mask = 0xffffffff,
- }
-};
-#endif /* CONFIG_PHY_PXA_USB */
-
-#if IS_ENABLED(CONFIG_USB_MV_UDC)
-static struct resource pxa168_u2o_resources[] = {
- /* regbase */
- [0] = {
- .start = PXA168_U2O_REGBASE + U2x_CAPREGS_OFFSET,
- .end = PXA168_U2O_REGBASE + USB_REG_RANGE,
- .flags = IORESOURCE_MEM,
- .name = "capregs",
- },
- /* phybase */
- [1] = {
- .start = PXA168_U2O_PHYBASE,
- .end = PXA168_U2O_PHYBASE + USB_PHY_RANGE,
- .flags = IORESOURCE_MEM,
- .name = "phyregs",
- },
- [2] = {
- .start = IRQ_PXA168_USB1,
- .end = IRQ_PXA168_USB1,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-struct platform_device pxa168_device_u2o = {
- .name = "mv-udc",
- .id = -1,
- .resource = pxa168_u2o_resources,
- .num_resources = ARRAY_SIZE(pxa168_u2o_resources),
- .dev = {
- .dma_mask = &usb_dma_mask,
- .coherent_dma_mask = 0xffffffff,
- }
-};
-#endif /* CONFIG_USB_MV_UDC */
-
-#if IS_ENABLED(CONFIG_USB_EHCI_MV_U2O)
-static struct resource pxa168_u2oehci_resources[] = {
- [0] = {
- .start = PXA168_U2O_REGBASE,
- .end = PXA168_U2O_REGBASE + USB_REG_RANGE,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = IRQ_PXA168_USB1,
- .end = IRQ_PXA168_USB1,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-struct platform_device pxa168_device_u2oehci = {
- .name = "pxa-u2oehci",
- .id = -1,
- .dev = {
- .dma_mask = &usb_dma_mask,
- .coherent_dma_mask = 0xffffffff,
- },
-
- .num_resources = ARRAY_SIZE(pxa168_u2oehci_resources),
- .resource = pxa168_u2oehci_resources,
-};
-#endif
-
-#if IS_ENABLED(CONFIG_USB_MV_OTG)
-static struct resource pxa168_u2ootg_resources[] = {
- /* regbase */
- [0] = {
- .start = PXA168_U2O_REGBASE + U2x_CAPREGS_OFFSET,
- .end = PXA168_U2O_REGBASE + USB_REG_RANGE,
- .flags = IORESOURCE_MEM,
- .name = "capregs",
- },
- /* phybase */
- [1] = {
- .start = PXA168_U2O_PHYBASE,
- .end = PXA168_U2O_PHYBASE + USB_PHY_RANGE,
- .flags = IORESOURCE_MEM,
- .name = "phyregs",
- },
- [2] = {
- .start = IRQ_PXA168_USB1,
- .end = IRQ_PXA168_USB1,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-struct platform_device pxa168_device_u2ootg = {
- .name = "mv-otg",
- .id = -1,
- .dev = {
- .dma_mask = &usb_dma_mask,
- .coherent_dma_mask = 0xffffffff,
- },
-
- .num_resources = ARRAY_SIZE(pxa168_u2ootg_resources),
- .resource = pxa168_u2ootg_resources,
-};
-#endif /* CONFIG_USB_MV_OTG */
-
-#endif
git.samba.org / sfrench / cifs-2.6.git / blobdiff