Linux kernel mirror (for testing)
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linux
1#ifndef __TI_SYSC_DATA_H__
2#define __TI_SYSC_DATA_H__
3
4enum ti_sysc_module_type {
5 TI_SYSC_OMAP2,
6 TI_SYSC_OMAP2_TIMER,
7 TI_SYSC_OMAP3_SHAM,
8 TI_SYSC_OMAP3_AES,
9 TI_SYSC_OMAP4,
10 TI_SYSC_OMAP4_TIMER,
11 TI_SYSC_OMAP4_SIMPLE,
12 TI_SYSC_OMAP34XX_SR,
13 TI_SYSC_OMAP36XX_SR,
14 TI_SYSC_OMAP4_SR,
15 TI_SYSC_OMAP4_MCASP,
16 TI_SYSC_OMAP4_USB_HOST_FS,
17 TI_SYSC_DRA7_MCAN,
18};
19
20struct ti_sysc_cookie {
21 void *data;
22 void *clkdm;
23};
24
25/**
26 * struct sysc_regbits - TI OCP_SYSCONFIG register field offsets
27 * @midle_shift: Offset of the midle bit
28 * @clkact_shift: Offset of the clockactivity bit
29 * @sidle_shift: Offset of the sidle bit
30 * @enwkup_shift: Offset of the enawakeup bit
31 * @srst_shift: Offset of the softreset bit
32 * @autoidle_shift: Offset of the autoidle bit
33 * @dmadisable_shift: Offset of the dmadisable bit
34 * @emufree_shift; Offset of the emufree bit
35 *
36 * Note that 0 is a valid shift, and for ti-sysc.c -ENODEV can be used if a
37 * feature is not available.
38 */
39struct sysc_regbits {
40 s8 midle_shift;
41 s8 clkact_shift;
42 s8 sidle_shift;
43 s8 enwkup_shift;
44 s8 srst_shift;
45 s8 autoidle_shift;
46 s8 dmadisable_shift;
47 s8 emufree_shift;
48};
49
50#define SYSC_MODULE_QUIRK_HDQ1W BIT(17)
51#define SYSC_MODULE_QUIRK_I2C BIT(16)
52#define SYSC_MODULE_QUIRK_WDT BIT(15)
53#define SYSS_QUIRK_RESETDONE_INVERTED BIT(14)
54#define SYSC_QUIRK_SWSUP_MSTANDBY BIT(13)
55#define SYSC_QUIRK_SWSUP_SIDLE_ACT BIT(12)
56#define SYSC_QUIRK_SWSUP_SIDLE BIT(11)
57#define SYSC_QUIRK_EXT_OPT_CLOCK BIT(10)
58#define SYSC_QUIRK_LEGACY_IDLE BIT(9)
59#define SYSC_QUIRK_RESET_STATUS BIT(8)
60#define SYSC_QUIRK_NO_IDLE BIT(7)
61#define SYSC_QUIRK_NO_IDLE_ON_INIT BIT(6)
62#define SYSC_QUIRK_NO_RESET_ON_INIT BIT(5)
63#define SYSC_QUIRK_OPT_CLKS_NEEDED BIT(4)
64#define SYSC_QUIRK_OPT_CLKS_IN_RESET BIT(3)
65#define SYSC_QUIRK_16BIT BIT(2)
66#define SYSC_QUIRK_UNCACHED BIT(1)
67#define SYSC_QUIRK_USE_CLOCKACT BIT(0)
68
69#define SYSC_NR_IDLEMODES 4
70
71/**
72 * struct sysc_capabilities - capabilities for an interconnect target module
73 *
74 * @sysc_mask: bitmask of supported SYSCONFIG register bits
75 * @regbits: bitmask of SYSCONFIG register bits
76 * @mod_quirks: bitmask of module specific quirks
77 */
78struct sysc_capabilities {
79 const enum ti_sysc_module_type type;
80 const u32 sysc_mask;
81 const struct sysc_regbits *regbits;
82 const u32 mod_quirks;
83};
84
85/**
86 * struct sysc_config - configuration for an interconnect target module
87 * @sysc_val: configured value for sysc register
88 * @midlemodes: bitmask of supported master idle modes
89 * @sidlemodes: bitmask of supported master idle modes
90 * @srst_udelay: optional delay needed after OCP soft reset
91 * @quirks: bitmask of enabled quirks
92 */
93struct sysc_config {
94 u32 sysc_val;
95 u32 syss_mask;
96 u8 midlemodes;
97 u8 sidlemodes;
98 u8 srst_udelay;
99 u32 quirks;
100};
101
102enum sysc_registers {
103 SYSC_REVISION,
104 SYSC_SYSCONFIG,
105 SYSC_SYSSTATUS,
106 SYSC_MAX_REGS,
107};
108
109/**
110 * struct ti_sysc_module_data - ti-sysc to hwmod translation data for a module
111 * @name: legacy "ti,hwmods" module name
112 * @module_pa: physical address of the interconnect target module
113 * @module_size: size of the interconnect target module
114 * @offsets: array of register offsets as listed in enum sysc_registers
115 * @nr_offsets: number of registers
116 * @cap: interconnect target module capabilities
117 * @cfg: interconnect target module configuration
118 *
119 * This data is enough to allocate a new struct omap_hwmod_class_sysconfig
120 * based on device tree data parsed by ti-sysc driver.
121 */
122struct ti_sysc_module_data {
123 const char *name;
124 u64 module_pa;
125 u32 module_size;
126 int *offsets;
127 int nr_offsets;
128 const struct sysc_capabilities *cap;
129 struct sysc_config *cfg;
130};
131
132struct device;
133struct clk;
134
135struct ti_sysc_platform_data {
136 struct of_dev_auxdata *auxdata;
137 int (*init_clockdomain)(struct device *dev, struct clk *fck,
138 struct clk *ick, struct ti_sysc_cookie *cookie);
139 void (*clkdm_deny_idle)(struct device *dev,
140 const struct ti_sysc_cookie *cookie);
141 void (*clkdm_allow_idle)(struct device *dev,
142 const struct ti_sysc_cookie *cookie);
143 int (*init_module)(struct device *dev,
144 const struct ti_sysc_module_data *data,
145 struct ti_sysc_cookie *cookie);
146 int (*enable_module)(struct device *dev,
147 const struct ti_sysc_cookie *cookie);
148 int (*idle_module)(struct device *dev,
149 const struct ti_sysc_cookie *cookie);
150 int (*shutdown_module)(struct device *dev,
151 const struct ti_sysc_cookie *cookie);
152};
153
154#endif /* __TI_SYSC_DATA_H__ */