OMAP: McBSP: Add 32-bit mode support
[deliverable/linux.git] / arch / arm / mach-omap2 / mcbsp.c
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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>
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21#include <plat/dma.h>
22#include <plat/mux.h>
23#include <plat/cpu.h>
24#include <plat/mcbsp.h>
78673bc8 25
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26static 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
38static void omap2_mcbsp_request(unsigned int id)
39{
40 if (cpu_is_omap2420() && (id == OMAP_MCBSP2))
41 omap2_mcbsp2_mux_setup();
42}
43
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44static struct omap_mcbsp_ops omap2_mcbsp_ops = {
45 .request = omap2_mcbsp_request,
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46};
47
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48#ifdef CONFIG_ARCH_OMAP2420
49static struct omap_mcbsp_platform_data omap2420_mcbsp_pdata[] = {
78673bc8 50 {
65846909 51 .phys_base = OMAP24XX_MCBSP1_BASE,
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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,
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57 },
58 {
65846909 59 .phys_base = OMAP24XX_MCBSP2_BASE,
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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,
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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
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70#define omap2420_mcbsp_pdata NULL
71#define OMAP2420_MCBSP_PDATA_SZ 0
c8c99699 72#define OMAP2420_MCBSP_REG_NUM 0
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73#endif
74
75#ifdef CONFIG_ARCH_OMAP2430
76static 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,
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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,
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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,
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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,
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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,
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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)
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120#else
121#define omap2430_mcbsp_pdata NULL
122#define OMAP2430_MCBSP_PDATA_SZ 0
c8c99699 123#define OMAP2430_MCBSP_REG_NUM 0
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124#endif
125
a8eb7ca0 126#ifdef CONFIG_ARCH_OMAP3
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127static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
128 {
65846909 129 .phys_base = OMAP34XX_MCBSP1_BASE,
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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,
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136 },
137 {
65846909 138 .phys_base = OMAP34XX_MCBSP2_BASE,
d912fa92 139 .phys_base_st = OMAP34XX_MCBSP2_ST_BASE,
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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 },
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147 {
148 .phys_base = OMAP34XX_MCBSP3_BASE,
d912fa92 149 .phys_base_st = OMAP34XX_MCBSP3_ST_BASE,
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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,
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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,
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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 },
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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)
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178#else
179#define omap34xx_mcbsp_pdata NULL
180#define OMAP34XX_MCBSP_PDATA_SZ 0
c8c99699 181#define OMAP34XX_MCBSP_REG_NUM 0
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182#endif
183
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184static 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 221static int __init omap2_mcbsp_init(void)
78673bc8 222{
c8c99699 223 if (cpu_is_omap2420()) {
05228c35 224 omap_mcbsp_count = OMAP2420_MCBSP_PDATA_SZ;
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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;
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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;
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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;
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234 omap_mcbsp_cache_size = OMAP44XX_MCBSP_REG_NUM * sizeof(u32);
235 }
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236
237 mcbsp_ptr = kzalloc(omap_mcbsp_count * sizeof(struct omap_mcbsp *),
238 GFP_KERNEL);
239 if (!mcbsp_ptr)
240 return -ENOMEM;
241
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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);
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248 if (cpu_is_omap34xx())
249 omap_mcbsp_register_board_cfg(omap34xx_mcbsp_pdata,
250 OMAP34XX_MCBSP_PDATA_SZ);
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251 if (cpu_is_omap44xx())
252 omap_mcbsp_register_board_cfg(omap44xx_mcbsp_pdata,
253 OMAP44XX_MCBSP_PDATA_SZ);
78673bc8 254
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255 return omap_mcbsp_init();
256}
257arch_initcall(omap2_mcbsp_init);
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