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78673bc8 EV |
1 | /* |
2 | * linux/arch/arm/mach-omap2/mcbsp.c | |
3 | * | |
4 | * Copyright (C) 2008 Instituto Nokia de Tecnologia | |
5 | * Contact: Eduardo Valentin <eduardo.valentin@indt.org.br> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | * | |
11 | * Multichannel mode not supported. | |
12 | */ | |
13 | #include <linux/module.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/clk.h> | |
16 | #include <linux/err.h> | |
17 | #include <linux/io.h> | |
18 | #include <linux/platform_device.h> | |
19 | ||
dd7667aa | 20 | #include <mach/irqs.h> |
ce491cf8 TL |
21 | #include <plat/dma.h> |
22 | #include <plat/mux.h> | |
23 | #include <plat/cpu.h> | |
24 | #include <plat/mcbsp.h> | |
78673bc8 | 25 | |
78673bc8 EV |
26 | static void omap2_mcbsp2_mux_setup(void) |
27 | { | |
28 | omap_cfg_reg(Y15_24XX_MCBSP2_CLKX); | |
29 | omap_cfg_reg(R14_24XX_MCBSP2_FSX); | |
30 | omap_cfg_reg(W15_24XX_MCBSP2_DR); | |
31 | omap_cfg_reg(V15_24XX_MCBSP2_DX); | |
32 | omap_cfg_reg(V14_24XX_GPIO117); | |
33 | /* | |
34 | * TODO: Need to add MUX settings for OMAP 2430 SDP | |
35 | */ | |
36 | } | |
37 | ||
38 | static void omap2_mcbsp_request(unsigned int id) | |
39 | { | |
40 | if (cpu_is_omap2420() && (id == OMAP_MCBSP2)) | |
41 | omap2_mcbsp2_mux_setup(); | |
42 | } | |
43 | ||
78673bc8 EV |
44 | static struct omap_mcbsp_ops omap2_mcbsp_ops = { |
45 | .request = omap2_mcbsp_request, | |
78673bc8 EV |
46 | }; |
47 | ||
05228c35 JN |
48 | #ifdef CONFIG_ARCH_OMAP2420 |
49 | static struct omap_mcbsp_platform_data omap2420_mcbsp_pdata[] = { | |
78673bc8 | 50 | { |
65846909 | 51 | .phys_base = OMAP24XX_MCBSP1_BASE, |
78673bc8 EV |
52 | .dma_rx_sync = OMAP24XX_DMA_MCBSP1_RX, |
53 | .dma_tx_sync = OMAP24XX_DMA_MCBSP1_TX, | |
54 | .rx_irq = INT_24XX_MCBSP1_IRQ_RX, | |
55 | .tx_irq = INT_24XX_MCBSP1_IRQ_TX, | |
56 | .ops = &omap2_mcbsp_ops, | |
78673bc8 EV |
57 | }, |
58 | { | |
65846909 | 59 | .phys_base = OMAP24XX_MCBSP2_BASE, |
78673bc8 EV |
60 | .dma_rx_sync = OMAP24XX_DMA_MCBSP2_RX, |
61 | .dma_tx_sync = OMAP24XX_DMA_MCBSP2_TX, | |
62 | .rx_irq = INT_24XX_MCBSP2_IRQ_RX, | |
63 | .tx_irq = INT_24XX_MCBSP2_IRQ_TX, | |
64 | .ops = &omap2_mcbsp_ops, | |
78673bc8 EV |
65 | }, |
66 | }; | |
05228c35 | 67 | #define OMAP2420_MCBSP_PDATA_SZ ARRAY_SIZE(omap2420_mcbsp_pdata) |
c8c99699 | 68 | #define OMAP2420_MCBSP_REG_NUM (OMAP_MCBSP_REG_RCCR / sizeof(u32) + 1) |
78673bc8 | 69 | #else |
05228c35 JN |
70 | #define omap2420_mcbsp_pdata NULL |
71 | #define OMAP2420_MCBSP_PDATA_SZ 0 | |
c8c99699 | 72 | #define OMAP2420_MCBSP_REG_NUM 0 |
05228c35 JN |
73 | #endif |
74 | ||
75 | #ifdef CONFIG_ARCH_OMAP2430 | |
76 | static struct omap_mcbsp_platform_data omap2430_mcbsp_pdata[] = { | |
77 | { | |
78 | .phys_base = OMAP24XX_MCBSP1_BASE, | |
79 | .dma_rx_sync = OMAP24XX_DMA_MCBSP1_RX, | |
80 | .dma_tx_sync = OMAP24XX_DMA_MCBSP1_TX, | |
81 | .rx_irq = INT_24XX_MCBSP1_IRQ_RX, | |
82 | .tx_irq = INT_24XX_MCBSP1_IRQ_TX, | |
83 | .ops = &omap2_mcbsp_ops, | |
05228c35 JN |
84 | }, |
85 | { | |
86 | .phys_base = OMAP24XX_MCBSP2_BASE, | |
87 | .dma_rx_sync = OMAP24XX_DMA_MCBSP2_RX, | |
88 | .dma_tx_sync = OMAP24XX_DMA_MCBSP2_TX, | |
89 | .rx_irq = INT_24XX_MCBSP2_IRQ_RX, | |
90 | .tx_irq = INT_24XX_MCBSP2_IRQ_TX, | |
91 | .ops = &omap2_mcbsp_ops, | |
05228c35 JN |
92 | }, |
93 | { | |
94 | .phys_base = OMAP2430_MCBSP3_BASE, | |
95 | .dma_rx_sync = OMAP24XX_DMA_MCBSP3_RX, | |
96 | .dma_tx_sync = OMAP24XX_DMA_MCBSP3_TX, | |
97 | .rx_irq = INT_24XX_MCBSP3_IRQ_RX, | |
98 | .tx_irq = INT_24XX_MCBSP3_IRQ_TX, | |
99 | .ops = &omap2_mcbsp_ops, | |
05228c35 JN |
100 | }, |
101 | { | |
102 | .phys_base = OMAP2430_MCBSP4_BASE, | |
103 | .dma_rx_sync = OMAP24XX_DMA_MCBSP4_RX, | |
104 | .dma_tx_sync = OMAP24XX_DMA_MCBSP4_TX, | |
105 | .rx_irq = INT_24XX_MCBSP4_IRQ_RX, | |
106 | .tx_irq = INT_24XX_MCBSP4_IRQ_TX, | |
107 | .ops = &omap2_mcbsp_ops, | |
05228c35 JN |
108 | }, |
109 | { | |
110 | .phys_base = OMAP2430_MCBSP5_BASE, | |
111 | .dma_rx_sync = OMAP24XX_DMA_MCBSP5_RX, | |
112 | .dma_tx_sync = OMAP24XX_DMA_MCBSP5_TX, | |
113 | .rx_irq = INT_24XX_MCBSP5_IRQ_RX, | |
114 | .tx_irq = INT_24XX_MCBSP5_IRQ_TX, | |
115 | .ops = &omap2_mcbsp_ops, | |
05228c35 JN |
116 | }, |
117 | }; | |
118 | #define OMAP2430_MCBSP_PDATA_SZ ARRAY_SIZE(omap2430_mcbsp_pdata) | |
c8c99699 | 119 | #define OMAP2430_MCBSP_REG_NUM (OMAP_MCBSP_REG_RCCR / sizeof(u32) + 1) |
05228c35 JN |
120 | #else |
121 | #define omap2430_mcbsp_pdata NULL | |
122 | #define OMAP2430_MCBSP_PDATA_SZ 0 | |
c8c99699 | 123 | #define OMAP2430_MCBSP_REG_NUM 0 |
78673bc8 EV |
124 | #endif |
125 | ||
a8eb7ca0 | 126 | #ifdef CONFIG_ARCH_OMAP3 |
78673bc8 EV |
127 | static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = { |
128 | { | |
65846909 | 129 | .phys_base = OMAP34XX_MCBSP1_BASE, |
78673bc8 EV |
130 | .dma_rx_sync = OMAP24XX_DMA_MCBSP1_RX, |
131 | .dma_tx_sync = OMAP24XX_DMA_MCBSP1_TX, | |
132 | .rx_irq = INT_24XX_MCBSP1_IRQ_RX, | |
133 | .tx_irq = INT_24XX_MCBSP1_IRQ_TX, | |
134 | .ops = &omap2_mcbsp_ops, | |
7e4f943b | 135 | .buffer_size = 0x6F, |
78673bc8 EV |
136 | }, |
137 | { | |
65846909 | 138 | .phys_base = OMAP34XX_MCBSP2_BASE, |
d912fa92 | 139 | .phys_base_st = OMAP34XX_MCBSP2_ST_BASE, |
78673bc8 EV |
140 | .dma_rx_sync = OMAP24XX_DMA_MCBSP2_RX, |
141 | .dma_tx_sync = OMAP24XX_DMA_MCBSP2_TX, | |
142 | .rx_irq = INT_24XX_MCBSP2_IRQ_RX, | |
143 | .tx_irq = INT_24XX_MCBSP2_IRQ_TX, | |
144 | .ops = &omap2_mcbsp_ops, | |
a1a56f5f | 145 | .buffer_size = 0x3FF, |
78673bc8 | 146 | }, |
9c8e3a0f CS |
147 | { |
148 | .phys_base = OMAP34XX_MCBSP3_BASE, | |
d912fa92 | 149 | .phys_base_st = OMAP34XX_MCBSP3_ST_BASE, |
9c8e3a0f CS |
150 | .dma_rx_sync = OMAP24XX_DMA_MCBSP3_RX, |
151 | .dma_tx_sync = OMAP24XX_DMA_MCBSP3_TX, | |
152 | .rx_irq = INT_24XX_MCBSP3_IRQ_RX, | |
153 | .tx_irq = INT_24XX_MCBSP3_IRQ_TX, | |
154 | .ops = &omap2_mcbsp_ops, | |
7e4f943b | 155 | .buffer_size = 0x6F, |
9c8e3a0f CS |
156 | }, |
157 | { | |
158 | .phys_base = OMAP34XX_MCBSP4_BASE, | |
159 | .dma_rx_sync = OMAP24XX_DMA_MCBSP4_RX, | |
160 | .dma_tx_sync = OMAP24XX_DMA_MCBSP4_TX, | |
161 | .rx_irq = INT_24XX_MCBSP4_IRQ_RX, | |
162 | .tx_irq = INT_24XX_MCBSP4_IRQ_TX, | |
163 | .ops = &omap2_mcbsp_ops, | |
7e4f943b | 164 | .buffer_size = 0x6F, |
9c8e3a0f CS |
165 | }, |
166 | { | |
167 | .phys_base = OMAP34XX_MCBSP5_BASE, | |
168 | .dma_rx_sync = OMAP24XX_DMA_MCBSP5_RX, | |
169 | .dma_tx_sync = OMAP24XX_DMA_MCBSP5_TX, | |
170 | .rx_irq = INT_24XX_MCBSP5_IRQ_RX, | |
171 | .tx_irq = INT_24XX_MCBSP5_IRQ_TX, | |
172 | .ops = &omap2_mcbsp_ops, | |
7e4f943b | 173 | .buffer_size = 0x6F, |
9c8e3a0f | 174 | }, |
78673bc8 EV |
175 | }; |
176 | #define OMAP34XX_MCBSP_PDATA_SZ ARRAY_SIZE(omap34xx_mcbsp_pdata) | |
c8c99699 | 177 | #define OMAP34XX_MCBSP_REG_NUM (OMAP_MCBSP_REG_RCCR / sizeof(u32) + 1) |
78673bc8 EV |
178 | #else |
179 | #define omap34xx_mcbsp_pdata NULL | |
180 | #define OMAP34XX_MCBSP_PDATA_SZ 0 | |
c8c99699 | 181 | #define OMAP34XX_MCBSP_REG_NUM 0 |
78673bc8 EV |
182 | #endif |
183 | ||
a5b92cc3 SR |
184 | static struct omap_mcbsp_platform_data omap44xx_mcbsp_pdata[] = { |
185 | { | |
186 | .phys_base = OMAP44XX_MCBSP1_BASE, | |
187 | .dma_rx_sync = OMAP44XX_DMA_MCBSP1_RX, | |
188 | .dma_tx_sync = OMAP44XX_DMA_MCBSP1_TX, | |
189 | .rx_irq = INT_24XX_MCBSP1_IRQ_RX, | |
190 | .tx_irq = INT_24XX_MCBSP1_IRQ_TX, | |
191 | .ops = &omap2_mcbsp_ops, | |
192 | }, | |
193 | { | |
194 | .phys_base = OMAP44XX_MCBSP2_BASE, | |
195 | .dma_rx_sync = OMAP44XX_DMA_MCBSP2_RX, | |
196 | .dma_tx_sync = OMAP44XX_DMA_MCBSP2_TX, | |
197 | .rx_irq = INT_24XX_MCBSP2_IRQ_RX, | |
198 | .tx_irq = INT_24XX_MCBSP2_IRQ_TX, | |
199 | .ops = &omap2_mcbsp_ops, | |
200 | }, | |
201 | { | |
202 | .phys_base = OMAP44XX_MCBSP3_BASE, | |
203 | .dma_rx_sync = OMAP44XX_DMA_MCBSP3_RX, | |
204 | .dma_tx_sync = OMAP44XX_DMA_MCBSP3_TX, | |
205 | .rx_irq = INT_24XX_MCBSP3_IRQ_RX, | |
206 | .tx_irq = INT_24XX_MCBSP3_IRQ_TX, | |
207 | .ops = &omap2_mcbsp_ops, | |
208 | }, | |
209 | { | |
210 | .phys_base = OMAP44XX_MCBSP4_BASE, | |
211 | .dma_rx_sync = OMAP44XX_DMA_MCBSP4_RX, | |
212 | .dma_tx_sync = OMAP44XX_DMA_MCBSP4_TX, | |
213 | .rx_irq = INT_24XX_MCBSP4_IRQ_RX, | |
214 | .tx_irq = INT_24XX_MCBSP4_IRQ_TX, | |
215 | .ops = &omap2_mcbsp_ops, | |
216 | }, | |
217 | }; | |
218 | #define OMAP44XX_MCBSP_PDATA_SZ ARRAY_SIZE(omap44xx_mcbsp_pdata) | |
c8c99699 | 219 | #define OMAP44XX_MCBSP_REG_NUM (OMAP_MCBSP_REG_RCCR / sizeof(u32) + 1) |
a5b92cc3 | 220 | |
b4b58f58 | 221 | static int __init omap2_mcbsp_init(void) |
78673bc8 | 222 | { |
c8c99699 | 223 | if (cpu_is_omap2420()) { |
05228c35 | 224 | omap_mcbsp_count = OMAP2420_MCBSP_PDATA_SZ; |
c8c99699 JK |
225 | omap_mcbsp_cache_size = OMAP2420_MCBSP_REG_NUM * sizeof(u16); |
226 | } else if (cpu_is_omap2430()) { | |
05228c35 | 227 | omap_mcbsp_count = OMAP2430_MCBSP_PDATA_SZ; |
c8c99699 JK |
228 | omap_mcbsp_cache_size = OMAP2430_MCBSP_REG_NUM * sizeof(u32); |
229 | } else if (cpu_is_omap34xx()) { | |
b4b58f58 | 230 | omap_mcbsp_count = OMAP34XX_MCBSP_PDATA_SZ; |
c8c99699 JK |
231 | omap_mcbsp_cache_size = OMAP34XX_MCBSP_REG_NUM * sizeof(u32); |
232 | } else if (cpu_is_omap44xx()) { | |
a5b92cc3 | 233 | omap_mcbsp_count = OMAP44XX_MCBSP_PDATA_SZ; |
c8c99699 JK |
234 | omap_mcbsp_cache_size = OMAP44XX_MCBSP_REG_NUM * sizeof(u32); |
235 | } | |
b4b58f58 CS |
236 | |
237 | mcbsp_ptr = kzalloc(omap_mcbsp_count * sizeof(struct omap_mcbsp *), | |
238 | GFP_KERNEL); | |
239 | if (!mcbsp_ptr) | |
240 | return -ENOMEM; | |
241 | ||
05228c35 JN |
242 | if (cpu_is_omap2420()) |
243 | omap_mcbsp_register_board_cfg(omap2420_mcbsp_pdata, | |
244 | OMAP2420_MCBSP_PDATA_SZ); | |
245 | if (cpu_is_omap2430()) | |
246 | omap_mcbsp_register_board_cfg(omap2430_mcbsp_pdata, | |
247 | OMAP2430_MCBSP_PDATA_SZ); | |
9c8e3a0f CS |
248 | if (cpu_is_omap34xx()) |
249 | omap_mcbsp_register_board_cfg(omap34xx_mcbsp_pdata, | |
250 | OMAP34XX_MCBSP_PDATA_SZ); | |
a5b92cc3 SR |
251 | if (cpu_is_omap44xx()) |
252 | omap_mcbsp_register_board_cfg(omap44xx_mcbsp_pdata, | |
253 | OMAP44XX_MCBSP_PDATA_SZ); | |
78673bc8 | 254 | |
78673bc8 EV |
255 | return omap_mcbsp_init(); |
256 | } | |
257 | arch_initcall(omap2_mcbsp_init); |