Merge branch 'topic/aoa' into for-linus
[linux-2.6] / arch / arm / mach-omap2 / mcbsp.c
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
20 #include <mach/irqs.h>
21 #include <mach/dma.h>
22 #include <mach/irqs.h>
23 #include <mach/mux.h>
24 #include <mach/cpu.h>
25 #include <mach/mcbsp.h>
26
27 const char *clk_names[] = { "mcbsp_ick", "mcbsp_fck" };
28
29 static void omap2_mcbsp2_mux_setup(void)
30 {
31         omap_cfg_reg(Y15_24XX_MCBSP2_CLKX);
32         omap_cfg_reg(R14_24XX_MCBSP2_FSX);
33         omap_cfg_reg(W15_24XX_MCBSP2_DR);
34         omap_cfg_reg(V15_24XX_MCBSP2_DX);
35         omap_cfg_reg(V14_24XX_GPIO117);
36         /*
37          * TODO: Need to add MUX settings for OMAP 2430 SDP
38          */
39 }
40
41 static void omap2_mcbsp_request(unsigned int id)
42 {
43         if (cpu_is_omap2420() && (id == OMAP_MCBSP2))
44                 omap2_mcbsp2_mux_setup();
45 }
46
47 static struct omap_mcbsp_ops omap2_mcbsp_ops = {
48         .request        = omap2_mcbsp_request,
49 };
50
51 #ifdef CONFIG_ARCH_OMAP2420
52 static struct omap_mcbsp_platform_data omap2420_mcbsp_pdata[] = {
53         {
54                 .phys_base      = OMAP24XX_MCBSP1_BASE,
55                 .dma_rx_sync    = OMAP24XX_DMA_MCBSP1_RX,
56                 .dma_tx_sync    = OMAP24XX_DMA_MCBSP1_TX,
57                 .rx_irq         = INT_24XX_MCBSP1_IRQ_RX,
58                 .tx_irq         = INT_24XX_MCBSP1_IRQ_TX,
59                 .ops            = &omap2_mcbsp_ops,
60                 .clk_names      = clk_names,
61                 .num_clks       = 2,
62         },
63         {
64                 .phys_base      = OMAP24XX_MCBSP2_BASE,
65                 .dma_rx_sync    = OMAP24XX_DMA_MCBSP2_RX,
66                 .dma_tx_sync    = OMAP24XX_DMA_MCBSP2_TX,
67                 .rx_irq         = INT_24XX_MCBSP2_IRQ_RX,
68                 .tx_irq         = INT_24XX_MCBSP2_IRQ_TX,
69                 .ops            = &omap2_mcbsp_ops,
70                 .clk_names      = clk_names,
71                 .num_clks       = 2,
72         },
73 };
74 #define OMAP2420_MCBSP_PDATA_SZ         ARRAY_SIZE(omap2420_mcbsp_pdata)
75 #else
76 #define omap2420_mcbsp_pdata            NULL
77 #define OMAP2420_MCBSP_PDATA_SZ         0
78 #endif
79
80 #ifdef CONFIG_ARCH_OMAP2430
81 static struct omap_mcbsp_platform_data omap2430_mcbsp_pdata[] = {
82         {
83                 .phys_base      = OMAP24XX_MCBSP1_BASE,
84                 .dma_rx_sync    = OMAP24XX_DMA_MCBSP1_RX,
85                 .dma_tx_sync    = OMAP24XX_DMA_MCBSP1_TX,
86                 .rx_irq         = INT_24XX_MCBSP1_IRQ_RX,
87                 .tx_irq         = INT_24XX_MCBSP1_IRQ_TX,
88                 .ops            = &omap2_mcbsp_ops,
89                 .clk_names      = clk_names,
90                 .num_clks       = 2,
91         },
92         {
93                 .phys_base      = OMAP24XX_MCBSP2_BASE,
94                 .dma_rx_sync    = OMAP24XX_DMA_MCBSP2_RX,
95                 .dma_tx_sync    = OMAP24XX_DMA_MCBSP2_TX,
96                 .rx_irq         = INT_24XX_MCBSP2_IRQ_RX,
97                 .tx_irq         = INT_24XX_MCBSP2_IRQ_TX,
98                 .ops            = &omap2_mcbsp_ops,
99                 .clk_names      = clk_names,
100                 .num_clks       = 2,
101         },
102         {
103                 .phys_base      = OMAP2430_MCBSP3_BASE,
104                 .dma_rx_sync    = OMAP24XX_DMA_MCBSP3_RX,
105                 .dma_tx_sync    = OMAP24XX_DMA_MCBSP3_TX,
106                 .rx_irq         = INT_24XX_MCBSP3_IRQ_RX,
107                 .tx_irq         = INT_24XX_MCBSP3_IRQ_TX,
108                 .ops            = &omap2_mcbsp_ops,
109                 .clk_names      = clk_names,
110                 .num_clks       = 2,
111         },
112         {
113                 .phys_base      = OMAP2430_MCBSP4_BASE,
114                 .dma_rx_sync    = OMAP24XX_DMA_MCBSP4_RX,
115                 .dma_tx_sync    = OMAP24XX_DMA_MCBSP4_TX,
116                 .rx_irq         = INT_24XX_MCBSP4_IRQ_RX,
117                 .tx_irq         = INT_24XX_MCBSP4_IRQ_TX,
118                 .ops            = &omap2_mcbsp_ops,
119                 .clk_names      = clk_names,
120                 .num_clks       = 2,
121         },
122         {
123                 .phys_base      = OMAP2430_MCBSP5_BASE,
124                 .dma_rx_sync    = OMAP24XX_DMA_MCBSP5_RX,
125                 .dma_tx_sync    = OMAP24XX_DMA_MCBSP5_TX,
126                 .rx_irq         = INT_24XX_MCBSP5_IRQ_RX,
127                 .tx_irq         = INT_24XX_MCBSP5_IRQ_TX,
128                 .ops            = &omap2_mcbsp_ops,
129                 .clk_names      = clk_names,
130                 .num_clks       = 2,
131         },
132 };
133 #define OMAP2430_MCBSP_PDATA_SZ         ARRAY_SIZE(omap2430_mcbsp_pdata)
134 #else
135 #define omap2430_mcbsp_pdata            NULL
136 #define OMAP2430_MCBSP_PDATA_SZ         0
137 #endif
138
139 #ifdef CONFIG_ARCH_OMAP34XX
140 static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = {
141         {
142                 .phys_base      = OMAP34XX_MCBSP1_BASE,
143                 .dma_rx_sync    = OMAP24XX_DMA_MCBSP1_RX,
144                 .dma_tx_sync    = OMAP24XX_DMA_MCBSP1_TX,
145                 .rx_irq         = INT_24XX_MCBSP1_IRQ_RX,
146                 .tx_irq         = INT_24XX_MCBSP1_IRQ_TX,
147                 .ops            = &omap2_mcbsp_ops,
148                 .clk_names      = clk_names,
149                 .num_clks       = 2,
150         },
151         {
152                 .phys_base      = OMAP34XX_MCBSP2_BASE,
153                 .dma_rx_sync    = OMAP24XX_DMA_MCBSP2_RX,
154                 .dma_tx_sync    = OMAP24XX_DMA_MCBSP2_TX,
155                 .rx_irq         = INT_24XX_MCBSP2_IRQ_RX,
156                 .tx_irq         = INT_24XX_MCBSP2_IRQ_TX,
157                 .ops            = &omap2_mcbsp_ops,
158                 .clk_names      = clk_names,
159                 .num_clks       = 2,
160         },
161         {
162                 .phys_base      = OMAP34XX_MCBSP3_BASE,
163                 .dma_rx_sync    = OMAP24XX_DMA_MCBSP3_RX,
164                 .dma_tx_sync    = OMAP24XX_DMA_MCBSP3_TX,
165                 .rx_irq         = INT_24XX_MCBSP3_IRQ_RX,
166                 .tx_irq         = INT_24XX_MCBSP3_IRQ_TX,
167                 .ops            = &omap2_mcbsp_ops,
168                 .clk_names      = clk_names,
169                 .num_clks       = 2,
170         },
171         {
172                 .phys_base      = OMAP34XX_MCBSP4_BASE,
173                 .dma_rx_sync    = OMAP24XX_DMA_MCBSP4_RX,
174                 .dma_tx_sync    = OMAP24XX_DMA_MCBSP4_TX,
175                 .rx_irq         = INT_24XX_MCBSP4_IRQ_RX,
176                 .tx_irq         = INT_24XX_MCBSP4_IRQ_TX,
177                 .ops            = &omap2_mcbsp_ops,
178                 .clk_names      = clk_names,
179                 .num_clks       = 2,
180         },
181         {
182                 .phys_base      = OMAP34XX_MCBSP5_BASE,
183                 .dma_rx_sync    = OMAP24XX_DMA_MCBSP5_RX,
184                 .dma_tx_sync    = OMAP24XX_DMA_MCBSP5_TX,
185                 .rx_irq         = INT_24XX_MCBSP5_IRQ_RX,
186                 .tx_irq         = INT_24XX_MCBSP5_IRQ_TX,
187                 .ops            = &omap2_mcbsp_ops,
188                 .clk_names      = clk_names,
189                 .num_clks       = 2,
190         },
191 };
192 #define OMAP34XX_MCBSP_PDATA_SZ         ARRAY_SIZE(omap34xx_mcbsp_pdata)
193 #else
194 #define omap34xx_mcbsp_pdata            NULL
195 #define OMAP34XX_MCBSP_PDATA_SZ         0
196 #endif
197
198 static int __init omap2_mcbsp_init(void)
199 {
200         if (cpu_is_omap2420())
201                 omap_mcbsp_count = OMAP2420_MCBSP_PDATA_SZ;
202         if (cpu_is_omap2430())
203                 omap_mcbsp_count = OMAP2430_MCBSP_PDATA_SZ;
204         if (cpu_is_omap34xx())
205                 omap_mcbsp_count = OMAP34XX_MCBSP_PDATA_SZ;
206
207         mcbsp_ptr = kzalloc(omap_mcbsp_count * sizeof(struct omap_mcbsp *),
208                                                                 GFP_KERNEL);
209         if (!mcbsp_ptr)
210                 return -ENOMEM;
211
212         if (cpu_is_omap2420())
213                 omap_mcbsp_register_board_cfg(omap2420_mcbsp_pdata,
214                                                 OMAP2420_MCBSP_PDATA_SZ);
215         if (cpu_is_omap2430())
216                 omap_mcbsp_register_board_cfg(omap2430_mcbsp_pdata,
217                                                 OMAP2430_MCBSP_PDATA_SZ);
218         if (cpu_is_omap34xx())
219                 omap_mcbsp_register_board_cfg(omap34xx_mcbsp_pdata,
220                                                 OMAP34XX_MCBSP_PDATA_SZ);
221
222         return omap_mcbsp_init();
223 }
224 arch_initcall(omap2_mcbsp_init);