drivers/rtc/rtc-gamecube.c

12  * This device sits on a bus named EXI (which is similar to SPI), channel 0,
40 #define EXICSR	0
45 #define EXICSR_DEV		0x380
46 	#define EXICSR_DEV1	0x100
47 #define EXICSR_CLK		0x070
48 	#define EXICSR_CLK_1MHZ	0x000
49 	#define EXICSR_CLK_2MHZ	0x010
50 	#define EXICSR_CLK_4MHZ	0x020
51 	#define EXICSR_CLK_8MHZ	0x030
52 	#define EXICSR_CLK_16MHZ 0x040
53 	#define EXICSR_CLK_32MHZ 0x050
54 #define EXICSR_INT		0x008
55 	#define EXICSR_INTSET	0x008
57 #define EXICR_TSTART		0x001
58 #define EXICR_TRSMODE		0x002
59 	#define EXICR_TRSMODE_IMM 0x000
60 #define EXICR_TRSTYPE		0x00C
61 	#define EXICR_TRSTYPE_R	0x000
62 	#define EXICR_TRSTYPE_W	0x004
63 #define EXICR_TLEN		0x030
64 	#define EXICR_TLEN32	0x030
70 #define RTC_EXIDATA_W	0x80000000
73 #define RTC_COUNTER	0x200000
74 #define RTC_SRAM	0x200001
75 #define RTC_SRAM_BIAS	0x200004
76 #define RTC_SNAPSHOT	0x204000
77 #define RTC_ONTMR	0x210000
78 #define RTC_OFFTMR	0x210001
79 #define RTC_TEST0	0x210004
80 #define RTC_TEST1	0x210005
81 #define RTC_TEST2	0x210006
82 #define RTC_TEST3	0x210007
83 #define RTC_CONTROL0	0x21000c
84 #define RTC_CONTROL1	0x21000d
87 #define RTC_CONTROL0_UNSTABLE_POWER	0x00000800
88 #define RTC_CONTROL0_LOW_BATTERY	0x00000200
120 	iowrite32be(0, iob + EXICSR);  in exi_read()
122 	return 0;  in exi_read()
149 	iowrite32be(0, iob + EXICSR);  in exi_write()
151 	return 0;  in exi_write()
176 	return 0;  in gamecube_rtc_read_time()
202 		value = 0;  in gamecube_rtc_ioctl()
237 	ret = of_address_to_resource(np, 0, &res);  in gamecube_rtc_read_offset_from_sram()
255 	if (old != 0x7bf)  in gamecube_rtc_read_offset_from_sram()
256 		iowrite32be(0x7bf, hw_srnprot);  in gamecube_rtc_read_offset_from_sram()
270 	if (old != 0x7bf)  in gamecube_rtc_read_offset_from_sram()
282 	regmap_reg_range(0x200000, 0x200010),
283 	regmap_reg_range(0x204000, 0x204000),
284 	regmap_reg_range(0x210000, 0x210001),
285 	regmap_reg_range(0x210004, 0x210007),
286 	regmap_reg_range(0x21000c, 0x21000d),
295 	regmap_reg_range(0x200000, 0x200010),
296 	regmap_reg_range(0x204000, 0x204000),
297 	regmap_reg_range(0x210000, 0x210001),
298 	regmap_reg_range(0x21000d, 0x21000d),
311 	.max_register = 0x21000d,
326 	d->iob = devm_platform_ioremap_resource(pdev, 0);  in gamecube_rtc_probe()
338 	dev_dbg(dev, "SRAM bias: 0x%x", d->rtc_bias);  in gamecube_rtc_probe()
350 	rtc->range_min = 0;  in gamecube_rtc_probe()
356 	return 0;  in gamecube_rtc_probe()