diff options
Diffstat (limited to 'drivers/usb/gadget/mv_udc_phy.c')
| -rw-r--r-- | drivers/usb/gadget/mv_udc_phy.c | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/drivers/usb/gadget/mv_udc_phy.c b/drivers/usb/gadget/mv_udc_phy.c deleted file mode 100644 index d4dea97e38a5..000000000000 --- a/drivers/usb/gadget/mv_udc_phy.c +++ /dev/null @@ -1,214 +0,0 @@ -#include <linux/delay.h> -#include <linux/timer.h> -#include <linux/io.h> -#include <linux/errno.h> - -#include <mach/cputype.h> - -#ifdef CONFIG_ARCH_MMP - -#define UTMI_REVISION 0x0 -#define UTMI_CTRL 0x4 -#define UTMI_PLL 0x8 -#define UTMI_TX 0xc -#define UTMI_RX 0x10 -#define UTMI_IVREF 0x14 -#define UTMI_T0 0x18 -#define UTMI_T1 0x1c -#define UTMI_T2 0x20 -#define UTMI_T3 0x24 -#define UTMI_T4 0x28 -#define UTMI_T5 0x2c -#define UTMI_RESERVE 0x30 -#define UTMI_USB_INT 0x34 -#define UTMI_DBG_CTL 0x38 -#define UTMI_OTG_ADDON 0x3c - -/* For UTMICTRL Register */ -#define UTMI_CTRL_USB_CLK_EN (1 << 31) -/* pxa168 */ -#define UTMI_CTRL_SUSPEND_SET1 (1 << 30) -#define UTMI_CTRL_SUSPEND_SET2 (1 << 29) -#define UTMI_CTRL_RXBUF_PDWN (1 << 24) -#define UTMI_CTRL_TXBUF_PDWN (1 << 11) - -#define UTMI_CTRL_INPKT_DELAY_SHIFT 30 -#define UTMI_CTRL_INPKT_DELAY_SOF_SHIFT 28 -#define UTMI_CTRL_PU_REF_SHIFT 20 -#define UTMI_CTRL_ARC_PULLDN_SHIFT 12 -#define UTMI_CTRL_PLL_PWR_UP_SHIFT 1 -#define UTMI_CTRL_PWR_UP_SHIFT 0 -/* For UTMI_PLL Register */ -#define UTMI_PLL_CLK_BLK_EN_SHIFT 24 -#define UTMI_PLL_FBDIV_SHIFT 4 -#define UTMI_PLL_REFDIV_SHIFT 0 -#define UTMI_PLL_FBDIV_MASK 0x00000FF0 -#define UTMI_PLL_REFDIV_MASK 0x0000000F -#define UTMI_PLL_ICP_MASK 0x00007000 -#define UTMI_PLL_KVCO_MASK 0x00031000 -#define UTMI_PLL_PLLCALI12_SHIFT 29 -#define UTMI_PLL_PLLCALI12_MASK (0x3 << 29) -#define UTMI_PLL_PLLVDD18_SHIFT 27 -#define UTMI_PLL_PLLVDD18_MASK (0x3 << 27) -#define UTMI_PLL_PLLVDD12_SHIFT 25 -#define UTMI_PLL_PLLVDD12_MASK (0x3 << 25) -#define UTMI_PLL_KVCO_SHIFT 15 -#define UTMI_PLL_ICP_SHIFT 12 -/* For UTMI_TX Register */ -#define UTMI_TX_REG_EXT_FS_RCAL_SHIFT 27 -#define UTMI_TX_REG_EXT_FS_RCAL_MASK (0xf << 27) -#define UTMI_TX_REG_EXT_FS_RCAL_EN_MASK 26 -#define UTMI_TX_REG_EXT_FS_RCAL_EN (0x1 << 26) -#define UTMI_TX_LOW_VDD_EN_SHIFT 11 -#define UTMI_TX_IMPCAL_VTH_SHIFT 14 -#define UTMI_TX_IMPCAL_VTH_MASK (0x7 << 14) -#define UTMI_TX_CK60_PHSEL_SHIFT 17 -#define UTMI_TX_CK60_PHSEL_MASK (0xf << 17) -#define UTMI_TX_TXVDD12_SHIFT 22 -#define UTMI_TX_TXVDD12_MASK (0x3 << 22) -#define UTMI_TX_AMP_SHIFT 0 -#define UTMI_TX_AMP_MASK (0x7 << 0) -/* For UTMI_RX Register */ -#define UTMI_RX_SQ_THRESH_SHIFT 4 -#define UTMI_RX_SQ_THRESH_MASK (0xf << 4) -#define UTMI_REG_SQ_LENGTH_SHIFT 15 -#define UTMI_REG_SQ_LENGTH_MASK (0x3 << 15) - -#define REG_RCAL_START 0x00001000 -#define VCOCAL_START 0x00200000 -#define KVCO_EXT 0x00400000 -#define PLL_READY 0x00800000 -#define CLK_BLK_EN 0x01000000 -#endif - -static unsigned int u2o_read(unsigned int base, unsigned int offset) -{ - return readl(base + offset); -} - -static void u2o_set(unsigned int base, unsigned int offset, unsigned int value) -{ - unsigned int reg; - - reg = readl(base + offset); - reg |= value; - writel(reg, base + offset); - readl(base + offset); -} - -static void u2o_clear(unsigned int base, unsigned int offset, - unsigned int value) -{ - unsigned int reg; - - reg = readl(base + offset); - reg &= ~value; - writel(reg, base + offset); - readl(base + offset); -} - -static void u2o_write(unsigned int base, unsigned int offset, - unsigned int value) -{ - writel(value, base + offset); - readl(base + offset); -} - -#ifdef CONFIG_ARCH_MMP -int mv_udc_phy_init(unsigned int base) -{ - unsigned long timeout; - - /* 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); - if (cpu_is_pxa168()) - u2o_set(base, UTMI_RX, (7 << UTMI_RX_SQ_THRESH_SHIFT) - | (2 << UTMI_REG_SQ_LENGTH_SHIFT)); - else - u2o_set(base, UTMI_RX, (0x7 << 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); - - /* calibrate */ - timeout = jiffies + 100; - while ((u2o_read(base, UTMI_PLL) & PLL_READY) == 0) { - if (time_after(jiffies, timeout)) - return -ETIME; - cpu_relax(); - } - - /* 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(200); - u2o_set(base, UTMI_TX, REG_RCAL_START); - udelay(40); - u2o_clear(base, UTMI_TX, REG_RCAL_START); - udelay(200); - - /* make sure phy is ready */ - timeout = jiffies + 100; - while ((u2o_read(base, UTMI_PLL) & PLL_READY) == 0) { - if (time_after(jiffies, timeout)) - return -ETIME; - cpu_relax(); - } - - 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; -} -#else -int mv_udc_phy_init(unsigned int base) -{ - return 0; -} -#endif |