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gerrit-public.fairphone.software / kernel / msm-4.9 / c5fcafa528463b207108cd606e0d41741fb7dc50 / . / arch / m68k / coldfire / m5441x.c
blob: 98a13cce93d82ef0a70a6d9b354531248f2a8d80 [file] [log] [blame]
Steven Kingbea8bcb2012-06-06 14:28:31 -0700[diff] [blame]1/*
2 * m5441x.c -- support for Coldfire m5441x processors
3 *
4 * (C) Copyright Steven King <sfking@fdwdc.com>
5 */
6
7#include <linux/kernel.h>
8#include <linux/param.h>
9#include <linux/init.h>
10#include <linux/io.h>
11#include <linux/clk.h>
12#include <asm/machdep.h>
13#include <asm/coldfire.h>
14#include <asm/mcfsim.h>
15#include <asm/mcfuart.h>
16#include <asm/mcfdma.h>
17#include <asm/mcfclk.h>
18
19DEFINE_CLK(0, "flexbus", 2, MCF_CLK);
20DEFINE_CLK(0, "mcfcan.0", 8, MCF_CLK);
21DEFINE_CLK(0, "mcfcan.1", 9, MCF_CLK);
22DEFINE_CLK(0, "mcfi2c.1", 14, MCF_CLK);
23DEFINE_CLK(0, "mcfdspi.1", 15, MCF_CLK);
24DEFINE_CLK(0, "edma", 17, MCF_CLK);
25DEFINE_CLK(0, "intc.0", 18, MCF_CLK);
26DEFINE_CLK(0, "intc.1", 19, MCF_CLK);
27DEFINE_CLK(0, "intc.2", 20, MCF_CLK);
28DEFINE_CLK(0, "mcfi2c.0", 22, MCF_CLK);
29DEFINE_CLK(0, "mcfdspi.0", 23, MCF_CLK);
30DEFINE_CLK(0, "mcfuart.0", 24, MCF_BUSCLK);
31DEFINE_CLK(0, "mcfuart.1", 25, MCF_BUSCLK);
32DEFINE_CLK(0, "mcfuart.2", 26, MCF_BUSCLK);
33DEFINE_CLK(0, "mcfuart.3", 27, MCF_BUSCLK);
34DEFINE_CLK(0, "mcftmr.0", 28, MCF_CLK);
35DEFINE_CLK(0, "mcftmr.1", 29, MCF_CLK);
36DEFINE_CLK(0, "mcftmr.2", 30, MCF_CLK);
37DEFINE_CLK(0, "mcftmr.3", 31, MCF_CLK);
38DEFINE_CLK(0, "mcfpit.0", 32, MCF_CLK);
39DEFINE_CLK(0, "mcfpit.1", 33, MCF_CLK);
40DEFINE_CLK(0, "mcfpit.2", 34, MCF_CLK);
41DEFINE_CLK(0, "mcfpit.3", 35, MCF_CLK);
42DEFINE_CLK(0, "mcfeport.0", 37, MCF_CLK);
43DEFINE_CLK(0, "mcfadc.0", 38, MCF_CLK);
44DEFINE_CLK(0, "mcfdac.0", 39, MCF_CLK);
45DEFINE_CLK(0, "mcfrtc.0", 42, MCF_CLK);
46DEFINE_CLK(0, "mcfsim.0", 43, MCF_CLK);
47DEFINE_CLK(0, "mcfusb-otg.0", 44, MCF_CLK);
48DEFINE_CLK(0, "mcfusb-host.0", 45, MCF_CLK);
49DEFINE_CLK(0, "mcfddr-sram.0", 46, MCF_CLK);
50DEFINE_CLK(0, "mcfssi.0", 47, MCF_CLK);
51DEFINE_CLK(0, "pll.0", 48, MCF_CLK);
52DEFINE_CLK(0, "mcfrng.0", 49, MCF_CLK);
53DEFINE_CLK(0, "mcfssi.1", 50, MCF_CLK);
54DEFINE_CLK(0, "mcfsdhc.0", 51, MCF_CLK);
55DEFINE_CLK(0, "enet-fec.0", 53, MCF_CLK);
56DEFINE_CLK(0, "enet-fec.1", 54, MCF_CLK);
57DEFINE_CLK(0, "switch.0", 55, MCF_CLK);
58DEFINE_CLK(0, "switch.1", 56, MCF_CLK);
59DEFINE_CLK(0, "nand.0", 63, MCF_CLK);
60
61DEFINE_CLK(1, "mcfow.0", 2, MCF_CLK);
62DEFINE_CLK(1, "mcfi2c.2", 4, MCF_CLK);
63DEFINE_CLK(1, "mcfi2c.3", 5, MCF_CLK);
64DEFINE_CLK(1, "mcfi2c.4", 6, MCF_CLK);
65DEFINE_CLK(1, "mcfi2c.5", 7, MCF_CLK);
66DEFINE_CLK(1, "mcfuart.4", 24, MCF_BUSCLK);
67DEFINE_CLK(1, "mcfuart.5", 25, MCF_BUSCLK);
68DEFINE_CLK(1, "mcfuart.6", 26, MCF_BUSCLK);
69DEFINE_CLK(1, "mcfuart.7", 27, MCF_BUSCLK);
70DEFINE_CLK(1, "mcfuart.8", 28, MCF_BUSCLK);
71DEFINE_CLK(1, "mcfuart.9", 29, MCF_BUSCLK);
72DEFINE_CLK(1, "mcfpwm.0", 34, MCF_BUSCLK);
73DEFINE_CLK(1, "sys.0", 36, MCF_BUSCLK);
74DEFINE_CLK(1, "gpio.0", 37, MCF_BUSCLK);
75
76struct clk *mcf_clks[] = {
77 &__clk_0_2,
78 &__clk_0_8,
79 &__clk_0_9,
80 &__clk_0_14,
81 &__clk_0_15,
82 &__clk_0_17,
83 &__clk_0_18,
84 &__clk_0_19,
85 &__clk_0_20,
86 &__clk_0_22,
87 &__clk_0_23,
88 &__clk_0_24,
89 &__clk_0_25,
90 &__clk_0_26,
91 &__clk_0_27,
92 &__clk_0_28,
93 &__clk_0_29,
94 &__clk_0_30,
95 &__clk_0_31,
96 &__clk_0_32,
97 &__clk_0_33,
98 &__clk_0_34,
99 &__clk_0_35,
100 &__clk_0_37,
101 &__clk_0_38,
102 &__clk_0_39,
103 &__clk_0_42,
104 &__clk_0_43,
105 &__clk_0_44,
106 &__clk_0_45,
107 &__clk_0_46,
108 &__clk_0_47,
109 &__clk_0_48,
110 &__clk_0_49,
111 &__clk_0_50,
112 &__clk_0_51,
113 &__clk_0_53,
114 &__clk_0_54,
115 &__clk_0_55,
116 &__clk_0_56,
117 &__clk_0_63,
118
119 &__clk_1_2,
120 &__clk_1_4,
121 &__clk_1_5,
122 &__clk_1_6,
123 &__clk_1_7,
124 &__clk_1_24,
125 &__clk_1_25,
126 &__clk_1_26,
127 &__clk_1_27,
128 &__clk_1_28,
129 &__clk_1_29,
130 &__clk_1_34,
131 &__clk_1_36,
132 &__clk_1_37,
133 NULL,
134};
135
136
137static struct clk * const enable_clks[] __initconst = {
138 /* make sure these clocks are enabled */
139 &__clk_0_18, /* intc0 */
140 &__clk_0_19, /* intc0 */
141 &__clk_0_20, /* intc0 */
142 &__clk_0_24, /* uart0 */
143 &__clk_0_25, /* uart1 */
144 &__clk_0_26, /* uart2 */
145 &__clk_0_27, /* uart3 */
146
147 &__clk_0_33, /* pit.1 */
148 &__clk_0_37, /* eport */
149 &__clk_0_48, /* pll */
150
151 &__clk_1_36, /* CCM/reset module/Power management */
152 &__clk_1_37, /* gpio */
153};
154static struct clk * const disable_clks[] __initconst = {
155 &__clk_0_8, /* can.0 */
156 &__clk_0_9, /* can.1 */
157 &__clk_0_14, /* i2c.1 */
158 &__clk_0_15, /* dspi.1 */
159 &__clk_0_17, /* eDMA */
160 &__clk_0_22, /* i2c.0 */
161 &__clk_0_23, /* dspi.0 */
162 &__clk_0_28, /* tmr.1 */
163 &__clk_0_29, /* tmr.2 */
164 &__clk_0_30, /* tmr.2 */
165 &__clk_0_31, /* tmr.3 */
166 &__clk_0_32, /* pit.0 */
167 &__clk_0_34, /* pit.2 */
168 &__clk_0_35, /* pit.3 */
169 &__clk_0_38, /* adc */
170 &__clk_0_39, /* dac */
171 &__clk_0_44, /* usb otg */
172 &__clk_0_45, /* usb host */
173 &__clk_0_47, /* ssi.0 */
174 &__clk_0_49, /* rng */
175 &__clk_0_50, /* ssi.1 */
176 &__clk_0_51, /* eSDHC */
177 &__clk_0_53, /* enet-fec */
178 &__clk_0_54, /* enet-fec */
179 &__clk_0_55, /* switch.0 */
180 &__clk_0_56, /* switch.1 */
181
182 &__clk_1_2, /* 1-wire */
183 &__clk_1_4, /* i2c.2 */
184 &__clk_1_5, /* i2c.3 */
185 &__clk_1_6, /* i2c.4 */
186 &__clk_1_7, /* i2c.5 */
187 &__clk_1_24, /* uart 4 */
188 &__clk_1_25, /* uart 5 */
189 &__clk_1_26, /* uart 6 */
190 &__clk_1_27, /* uart 7 */
191 &__clk_1_28, /* uart 8 */
192 &__clk_1_29, /* uart 9 */
193};
194
195static void __init m5441x_clk_init(void)
196{
197 unsigned i;
198
199 for (i = 0; i < ARRAY_SIZE(enable_clks); ++i)
200 __clk_init_enabled(enable_clks[i]);
201 /* make sure these clocks are disabled */
202 for (i = 0; i < ARRAY_SIZE(disable_clks); ++i)
203 __clk_init_disabled(disable_clks[i]);
204}
205
206static void __init m5441x_uarts_init(void)
207{
208 __raw_writeb(0x0f, MCFGPIO_PAR_UART0);
209 __raw_writeb(0x00, MCFGPIO_PAR_UART1);
210 __raw_writeb(0x00, MCFGPIO_PAR_UART2);
211}
212
213static void __init m5441x_fec_init(void)
214{
215 __raw_writeb(0x03, MCFGPIO_PAR_FEC);
216}
217
218void __init config_BSP(char *commandp, int size)
219{
220 m5441x_clk_init();
221 mach_sched_init = hw_timer_init;
222 m5441x_uarts_init();
223 m5441x_fec_init();
224}
Steven Kingc785a3d2012-06-17 01:03:38 -0700[diff] [blame]225
226
227#if IS_ENABLED(CONFIG_RTC_DRV_M5441x)
228static struct resource m5441x_rtc_resources[] = {
229 {
230 .start = MCFRTC_BASE,
231 .end = MCFRTC_BASE + MCFRTC_SIZE - 1,
232 .flags = IORESOURCE_MEM,
233 },
234 {
235 .start = MCF_IRQ_RTC,
236 .end = MCF_IRQ_RTC,
237 .flags = IORESOURCE_IRQ,
238 },
239};
240
241static struct platform_device m5441x_rtc = {
242 .name = "mcfrtc",
243 .id = 0,
244 .resource = m5441x_rtc_resources,
245 .num_resources = ARRAY_SIZE(m5441x_rtc_resources),
246};
247#endif
248
249static struct platform_device *m5441x_devices[] __initdata = {
250#if IS_ENABLED(CONFIG_RTC_DRV_M5441x)
251 &m5441x_rtc,
252#endif
253};
254
255static int __init init_BSP(void)
256{
257 platform_add_devices(m5441x_devices, ARRAY_SIZE(m5441x_devices));
258 return 0;
259}
260
261arch_initcall(init_BSP);