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Diffstat (limited to 'arch/arm/mach-omap2/omap_phy_internal.c')
-rw-r--r--arch/arm/mach-omap2/omap_phy_internal.c138
1 files changed, 0 insertions, 138 deletions
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c b/arch/arm/mach-omap2/omap_phy_internal.c
index 593eaea35cec..d992db8ff0b0 100644
--- a/arch/arm/mach-omap2/omap_phy_internal.c
+++ b/arch/arm/mach-omap2/omap_phy_internal.c
@@ -33,144 +33,6 @@
33#include "soc.h" 33#include "soc.h"
34#include "control.h" 34#include "control.h"
35 35
36/* OMAP control module register for UTMI PHY */
37#define CONTROL_DEV_CONF 0x300
38#define PHY_PD 0x1
39
40#define USBOTGHS_CONTROL 0x33c
41#define AVALID BIT(0)
42#define BVALID BIT(1)
43#define VBUSVALID BIT(2)
44#define SESSEND BIT(3)
45#define IDDIG BIT(4)
46
47static struct clk *phyclk, *clk48m, *clk32k;
48static void __iomem *ctrl_base;
49static int usbotghs_control;
50
51int omap4430_phy_init(struct device *dev)
52{
53 ctrl_base = ioremap(OMAP443X_SCM_BASE, SZ_1K);
54 if (!ctrl_base) {
55 pr_err("control module ioremap failed\n");
56 return -ENOMEM;
57 }
58 /* Power down the phy */
59 __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
60
61 if (!dev) {
62 iounmap(ctrl_base);
63 return 0;
64 }
65
66 phyclk = clk_get(dev, "ocp2scp_usb_phy_ick");
67 if (IS_ERR(phyclk)) {
68 dev_err(dev, "cannot clk_get ocp2scp_usb_phy_ick\n");
69 iounmap(ctrl_base);
70 return PTR_ERR(phyclk);
71 }
72
73 clk48m = clk_get(dev, "ocp2scp_usb_phy_phy_48m");
74 if (IS_ERR(clk48m)) {
75 dev_err(dev, "cannot clk_get ocp2scp_usb_phy_phy_48m\n");
76 clk_put(phyclk);
77 iounmap(ctrl_base);
78 return PTR_ERR(clk48m);
79 }
80
81 clk32k = clk_get(dev, "usb_phy_cm_clk32k");
82 if (IS_ERR(clk32k)) {
83 dev_err(dev, "cannot clk_get usb_phy_cm_clk32k\n");
84 clk_put(phyclk);
85 clk_put(clk48m);
86 iounmap(ctrl_base);
87 return PTR_ERR(clk32k);
88 }
89 return 0;
90}
91
92int omap4430_phy_set_clk(struct device *dev, int on)
93{
94 static int state;
95
96 if (on && !state) {
97 /* Enable the phy clocks */
98 clk_enable(phyclk);
99 clk_enable(clk48m);
100 clk_enable(clk32k);
101 state = 1;
102 } else if (state) {
103 /* Disable the phy clocks */
104 clk_disable(phyclk);
105 clk_disable(clk48m);
106 clk_disable(clk32k);
107 state = 0;
108 }
109 return 0;
110}
111
112int omap4430_phy_power(struct device *dev, int ID, int on)
113{
114 if (on) {
115 if (ID)
116 /* enable VBUS valid, IDDIG groung */
117 __raw_writel(AVALID | VBUSVALID, ctrl_base +
118 USBOTGHS_CONTROL);
119 else
120 /*
121 * Enable VBUS Valid, AValid and IDDIG
122 * high impedance
123 */
124 __raw_writel(IDDIG | AVALID | VBUSVALID,
125 ctrl_base + USBOTGHS_CONTROL);
126 } else {
127 /* Enable session END and IDIG to high impedance. */
128 __raw_writel(SESSEND | IDDIG, ctrl_base +
129 USBOTGHS_CONTROL);
130 }
131 return 0;
132}
133
134int omap4430_phy_suspend(struct device *dev, int suspend)
135{
136 if (suspend) {
137 /* Disable the clocks */
138 omap4430_phy_set_clk(dev, 0);
139 /* Power down the phy */
140 __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
141
142 /* save the context */
143 usbotghs_control = __raw_readl(ctrl_base + USBOTGHS_CONTROL);
144 } else {
145 /* Enable the internel phy clcoks */
146 omap4430_phy_set_clk(dev, 1);
147 /* power on the phy */
148 if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
149 __raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
150 mdelay(200);
151 }
152
153 /* restore the context */
154 __raw_writel(usbotghs_control, ctrl_base + USBOTGHS_CONTROL);
155 }
156
157 return 0;
158}
159
160int omap4430_phy_exit(struct device *dev)
161{
162 if (ctrl_base)
163 iounmap(ctrl_base);
164 if (phyclk)
165 clk_put(phyclk);
166 if (clk48m)
167 clk_put(clk48m);
168 if (clk32k)
169 clk_put(clk32k);
170
171 return 0;
172}
173
174void am35x_musb_reset(void) 36void am35x_musb_reset(void)
175{ 37{
176 u32 regval; 38 u32 regval;