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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> | |
5a0e3ad6 | 19 | #include <linux/slab.h> |
78673bc8 | 20 | |
dd7667aa | 21 | #include <mach/irqs.h> |
ce491cf8 | 22 | #include <plat/dma.h> |
ce491cf8 TL |
23 | #include <plat/cpu.h> |
24 | #include <plat/mcbsp.h> | |
cf4c87ab | 25 | #include <plat/control.h> |
78673bc8 | 26 | |
cf4c87ab PW |
27 | /* McBSP internal signal muxing functions */ |
28 | ||
29 | void omap2_mcbsp1_mux_clkr_src(u8 mux) | |
30 | { | |
31 | u32 v; | |
32 | ||
33 | v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); | |
34 | if (mux == CLKR_SRC_CLKR) | |
35 | v &= OMAP2_MCBSP1_CLKR_MASK; | |
36 | else if (mux == CLKR_SRC_CLKX) | |
37 | v |= OMAP2_MCBSP1_CLKR_MASK; | |
38 | omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0); | |
39 | } | |
40 | EXPORT_SYMBOL(omap2_mcbsp1_mux_clkr_src); | |
41 | ||
42 | void omap2_mcbsp1_mux_fsr_src(u8 mux) | |
43 | { | |
44 | u32 v; | |
45 | ||
46 | v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); | |
47 | if (mux == FSR_SRC_FSR) | |
48 | v &= OMAP2_MCBSP1_FSR_MASK; | |
49 | else if (mux == FSR_SRC_FSX) | |
50 | v |= OMAP2_MCBSP1_FSR_MASK; | |
51 | omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0); | |
52 | } | |
53 | EXPORT_SYMBOL(omap2_mcbsp1_mux_fsr_src); | |
54 | ||
55 | /* Platform data */ | |
78673bc8 | 56 | |
05228c35 JN |
57 | #ifdef CONFIG_ARCH_OMAP2420 |
58 | static struct omap_mcbsp_platform_data omap2420_mcbsp_pdata[] = { | |
78673bc8 | 59 | { |
65846909 | 60 | .phys_base = OMAP24XX_MCBSP1_BASE, |
78673bc8 EV |
61 | .dma_rx_sync = OMAP24XX_DMA_MCBSP1_RX, |
62 | .dma_tx_sync = OMAP24XX_DMA_MCBSP1_TX, | |
63 | .rx_irq = INT_24XX_MCBSP1_IRQ_RX, | |
64 | .tx_irq = INT_24XX_MCBSP1_IRQ_TX, | |
78673bc8 EV |
65 | }, |
66 | { | |
65846909 | 67 | .phys_base = OMAP24XX_MCBSP2_BASE, |
78673bc8 EV |
68 | .dma_rx_sync = OMAP24XX_DMA_MCBSP2_RX, |
69 | .dma_tx_sync = OMAP24XX_DMA_MCBSP2_TX, | |
70 | .rx_irq = INT_24XX_MCBSP2_IRQ_RX, | |
71 | .tx_irq = INT_24XX_MCBSP2_IRQ_TX, | |
78673bc8 EV |
72 | }, |
73 | }; | |
05228c35 | 74 | #define OMAP2420_MCBSP_PDATA_SZ ARRAY_SIZE(omap2420_mcbsp_pdata) |
c8c99699 | 75 | #define OMAP2420_MCBSP_REG_NUM (OMAP_MCBSP_REG_RCCR / sizeof(u32) + 1) |
78673bc8 | 76 | #else |
05228c35 JN |
77 | #define omap2420_mcbsp_pdata NULL |
78 | #define OMAP2420_MCBSP_PDATA_SZ 0 | |
c8c99699 | 79 | #define OMAP2420_MCBSP_REG_NUM 0 |
05228c35 JN |
80 | #endif |
81 | ||
82 | #ifdef CONFIG_ARCH_OMAP2430 | |
83 | static struct omap_mcbsp_platform_data omap2430_mcbsp_pdata[] = { | |
84 | { | |
85 | .phys_base = OMAP24XX_MCBSP1_BASE, | |
86 | .dma_rx_sync = OMAP24XX_DMA_MCBSP1_RX, | |
87 | .dma_tx_sync = OMAP24XX_DMA_MCBSP1_TX, | |
88 | .rx_irq = INT_24XX_MCBSP1_IRQ_RX, | |
89 | .tx_irq = INT_24XX_MCBSP1_IRQ_TX, | |
05228c35 JN |
90 | }, |
91 | { | |
92 | .phys_base = OMAP24XX_MCBSP2_BASE, | |
93 | .dma_rx_sync = OMAP24XX_DMA_MCBSP2_RX, | |
94 | .dma_tx_sync = OMAP24XX_DMA_MCBSP2_TX, | |
95 | .rx_irq = INT_24XX_MCBSP2_IRQ_RX, | |
96 | .tx_irq = INT_24XX_MCBSP2_IRQ_TX, | |
05228c35 JN |
97 | }, |
98 | { | |
99 | .phys_base = OMAP2430_MCBSP3_BASE, | |
100 | .dma_rx_sync = OMAP24XX_DMA_MCBSP3_RX, | |
101 | .dma_tx_sync = OMAP24XX_DMA_MCBSP3_TX, | |
102 | .rx_irq = INT_24XX_MCBSP3_IRQ_RX, | |
103 | .tx_irq = INT_24XX_MCBSP3_IRQ_TX, | |
05228c35 JN |
104 | }, |
105 | { | |
106 | .phys_base = OMAP2430_MCBSP4_BASE, | |
107 | .dma_rx_sync = OMAP24XX_DMA_MCBSP4_RX, | |
108 | .dma_tx_sync = OMAP24XX_DMA_MCBSP4_TX, | |
109 | .rx_irq = INT_24XX_MCBSP4_IRQ_RX, | |
110 | .tx_irq = INT_24XX_MCBSP4_IRQ_TX, | |
05228c35 JN |
111 | }, |
112 | { | |
113 | .phys_base = OMAP2430_MCBSP5_BASE, | |
114 | .dma_rx_sync = OMAP24XX_DMA_MCBSP5_RX, | |
115 | .dma_tx_sync = OMAP24XX_DMA_MCBSP5_TX, | |
116 | .rx_irq = INT_24XX_MCBSP5_IRQ_RX, | |
117 | .tx_irq = INT_24XX_MCBSP5_IRQ_TX, | |
05228c35 JN |
118 | }, |
119 | }; | |
120 | #define OMAP2430_MCBSP_PDATA_SZ ARRAY_SIZE(omap2430_mcbsp_pdata) | |
c8c99699 | 121 | #define OMAP2430_MCBSP_REG_NUM (OMAP_MCBSP_REG_RCCR / sizeof(u32) + 1) |
05228c35 JN |
122 | #else |
123 | #define omap2430_mcbsp_pdata NULL | |
124 | #define OMAP2430_MCBSP_PDATA_SZ 0 | |
c8c99699 | 125 | #define OMAP2430_MCBSP_REG_NUM 0 |
78673bc8 EV |
126 | #endif |
127 | ||
a8eb7ca0 | 128 | #ifdef CONFIG_ARCH_OMAP3 |
78673bc8 EV |
129 | static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = { |
130 | { | |
65846909 | 131 | .phys_base = OMAP34XX_MCBSP1_BASE, |
78673bc8 EV |
132 | .dma_rx_sync = OMAP24XX_DMA_MCBSP1_RX, |
133 | .dma_tx_sync = OMAP24XX_DMA_MCBSP1_TX, | |
134 | .rx_irq = INT_24XX_MCBSP1_IRQ_RX, | |
135 | .tx_irq = INT_24XX_MCBSP1_IRQ_TX, | |
451fd82d | 136 | .buffer_size = 0x80, /* The FIFO has 128 locations */ |
78673bc8 EV |
137 | }, |
138 | { | |
65846909 | 139 | .phys_base = OMAP34XX_MCBSP2_BASE, |
d912fa92 | 140 | .phys_base_st = OMAP34XX_MCBSP2_ST_BASE, |
78673bc8 EV |
141 | .dma_rx_sync = OMAP24XX_DMA_MCBSP2_RX, |
142 | .dma_tx_sync = OMAP24XX_DMA_MCBSP2_TX, | |
143 | .rx_irq = INT_24XX_MCBSP2_IRQ_RX, | |
144 | .tx_irq = INT_24XX_MCBSP2_IRQ_TX, | |
451fd82d | 145 | .buffer_size = 0x500, /* The FIFO has 1024 + 256 locations */ |
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, | |
451fd82d | 154 | .buffer_size = 0x80, /* The FIFO has 128 locations */ |
9c8e3a0f CS |
155 | }, |
156 | { | |
157 | .phys_base = OMAP34XX_MCBSP4_BASE, | |
158 | .dma_rx_sync = OMAP24XX_DMA_MCBSP4_RX, | |
159 | .dma_tx_sync = OMAP24XX_DMA_MCBSP4_TX, | |
160 | .rx_irq = INT_24XX_MCBSP4_IRQ_RX, | |
161 | .tx_irq = INT_24XX_MCBSP4_IRQ_TX, | |
451fd82d | 162 | .buffer_size = 0x80, /* The FIFO has 128 locations */ |
9c8e3a0f CS |
163 | }, |
164 | { | |
165 | .phys_base = OMAP34XX_MCBSP5_BASE, | |
166 | .dma_rx_sync = OMAP24XX_DMA_MCBSP5_RX, | |
167 | .dma_tx_sync = OMAP24XX_DMA_MCBSP5_TX, | |
168 | .rx_irq = INT_24XX_MCBSP5_IRQ_RX, | |
169 | .tx_irq = INT_24XX_MCBSP5_IRQ_TX, | |
451fd82d | 170 | .buffer_size = 0x80, /* The FIFO has 128 locations */ |
9c8e3a0f | 171 | }, |
78673bc8 EV |
172 | }; |
173 | #define OMAP34XX_MCBSP_PDATA_SZ ARRAY_SIZE(omap34xx_mcbsp_pdata) | |
c8c99699 | 174 | #define OMAP34XX_MCBSP_REG_NUM (OMAP_MCBSP_REG_RCCR / sizeof(u32) + 1) |
78673bc8 EV |
175 | #else |
176 | #define omap34xx_mcbsp_pdata NULL | |
177 | #define OMAP34XX_MCBSP_PDATA_SZ 0 | |
c8c99699 | 178 | #define OMAP34XX_MCBSP_REG_NUM 0 |
78673bc8 EV |
179 | #endif |
180 | ||
a5b92cc3 SR |
181 | static struct omap_mcbsp_platform_data omap44xx_mcbsp_pdata[] = { |
182 | { | |
183 | .phys_base = OMAP44XX_MCBSP1_BASE, | |
184 | .dma_rx_sync = OMAP44XX_DMA_MCBSP1_RX, | |
185 | .dma_tx_sync = OMAP44XX_DMA_MCBSP1_TX, | |
9319b9da | 186 | .tx_irq = OMAP44XX_IRQ_MCBSP1, |
a5b92cc3 SR |
187 | }, |
188 | { | |
189 | .phys_base = OMAP44XX_MCBSP2_BASE, | |
190 | .dma_rx_sync = OMAP44XX_DMA_MCBSP2_RX, | |
191 | .dma_tx_sync = OMAP44XX_DMA_MCBSP2_TX, | |
9319b9da | 192 | .tx_irq = OMAP44XX_IRQ_MCBSP2, |
a5b92cc3 SR |
193 | }, |
194 | { | |
195 | .phys_base = OMAP44XX_MCBSP3_BASE, | |
196 | .dma_rx_sync = OMAP44XX_DMA_MCBSP3_RX, | |
197 | .dma_tx_sync = OMAP44XX_DMA_MCBSP3_TX, | |
9319b9da | 198 | .tx_irq = OMAP44XX_IRQ_MCBSP3, |
a5b92cc3 SR |
199 | }, |
200 | { | |
201 | .phys_base = OMAP44XX_MCBSP4_BASE, | |
202 | .dma_rx_sync = OMAP44XX_DMA_MCBSP4_RX, | |
203 | .dma_tx_sync = OMAP44XX_DMA_MCBSP4_TX, | |
9319b9da | 204 | .tx_irq = OMAP44XX_IRQ_MCBSP4, |
a5b92cc3 SR |
205 | }, |
206 | }; | |
207 | #define OMAP44XX_MCBSP_PDATA_SZ ARRAY_SIZE(omap44xx_mcbsp_pdata) | |
c8c99699 | 208 | #define OMAP44XX_MCBSP_REG_NUM (OMAP_MCBSP_REG_RCCR / sizeof(u32) + 1) |
a5b92cc3 | 209 | |
b4b58f58 | 210 | static int __init omap2_mcbsp_init(void) |
78673bc8 | 211 | { |
c8c99699 | 212 | if (cpu_is_omap2420()) { |
05228c35 | 213 | omap_mcbsp_count = OMAP2420_MCBSP_PDATA_SZ; |
c8c99699 JK |
214 | omap_mcbsp_cache_size = OMAP2420_MCBSP_REG_NUM * sizeof(u16); |
215 | } else if (cpu_is_omap2430()) { | |
05228c35 | 216 | omap_mcbsp_count = OMAP2430_MCBSP_PDATA_SZ; |
c8c99699 JK |
217 | omap_mcbsp_cache_size = OMAP2430_MCBSP_REG_NUM * sizeof(u32); |
218 | } else if (cpu_is_omap34xx()) { | |
b4b58f58 | 219 | omap_mcbsp_count = OMAP34XX_MCBSP_PDATA_SZ; |
c8c99699 JK |
220 | omap_mcbsp_cache_size = OMAP34XX_MCBSP_REG_NUM * sizeof(u32); |
221 | } else if (cpu_is_omap44xx()) { | |
a5b92cc3 | 222 | omap_mcbsp_count = OMAP44XX_MCBSP_PDATA_SZ; |
c8c99699 JK |
223 | omap_mcbsp_cache_size = OMAP44XX_MCBSP_REG_NUM * sizeof(u32); |
224 | } | |
b4b58f58 CS |
225 | |
226 | mcbsp_ptr = kzalloc(omap_mcbsp_count * sizeof(struct omap_mcbsp *), | |
227 | GFP_KERNEL); | |
228 | if (!mcbsp_ptr) | |
229 | return -ENOMEM; | |
230 | ||
05228c35 JN |
231 | if (cpu_is_omap2420()) |
232 | omap_mcbsp_register_board_cfg(omap2420_mcbsp_pdata, | |
233 | OMAP2420_MCBSP_PDATA_SZ); | |
234 | if (cpu_is_omap2430()) | |
235 | omap_mcbsp_register_board_cfg(omap2430_mcbsp_pdata, | |
236 | OMAP2430_MCBSP_PDATA_SZ); | |
9c8e3a0f CS |
237 | if (cpu_is_omap34xx()) |
238 | omap_mcbsp_register_board_cfg(omap34xx_mcbsp_pdata, | |
239 | OMAP34XX_MCBSP_PDATA_SZ); | |
a5b92cc3 SR |
240 | if (cpu_is_omap44xx()) |
241 | omap_mcbsp_register_board_cfg(omap44xx_mcbsp_pdata, | |
242 | OMAP44XX_MCBSP_PDATA_SZ); | |
78673bc8 | 243 | |
78673bc8 EV |
244 | return omap_mcbsp_init(); |
245 | } | |
246 | arch_initcall(omap2_mcbsp_init); |