1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
From: Eduardo Valentin <eduardo.valentin@indt.org.br>
This patch adds support for mach-omap1 based on current
mcbsp platform driver.
Signed-off-by: Eduardo Valentin <eduardo.valentin@indt.org.br>
---
arch/arm/mach-omap1/Makefile | 2 +
arch/arm/mach-omap1/mcbsp.c | 165 ++++++++++++++++++++++++++++++++++++++++++
2 files changed, 167 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-omap1/mcbsp.c
diff --git a/arch/arm/mach-omap1/Makefile b/arch/arm/mach-omap1/Makefile
index 6ebf23b..09246a7 100644
--- a/arch/arm/mach-omap1/Makefile
+++ b/arch/arm/mach-omap1/Makefile
@@ -5,6 +5,8 @@
# Common support
obj-y := io.o id.o clock.o irq.o mux.o serial.o devices.o
+obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o
+
obj-$(CONFIG_OMAP_MPU_TIMER) += time.o
obj-$(CONFIG_OMAP_32K_TIMER) += timer32k.o
diff --git a/arch/arm/mach-omap1/mcbsp.c b/arch/arm/mach-omap1/mcbsp.c
new file mode 100644
index 0000000..f30624a
--- /dev/null
+++ b/arch/arm/mach-omap1/mcbsp.c
@@ -0,0 +1,165 @@
+/*
+ * linux/arch/arm/mach-omap1/mcbsp.c
+ *
+ * Copyright (C) 2008 Instituto Nokia de Tecnologia
+ * Contact: Eduardo Valentin <eduardo.valentin@indt.org.br>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Multichannel mode not supported.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+
+#include <asm/arch/dma.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/mcbsp.h>
+#include <asm/arch/dsp_common.h>
+
+#define DPS_RSTCT2_PER_EN (1 << 0)
+#define DSP_RSTCT2_WD_PER_EN (1 << 1)
+
+static int omap1_mcbsp_check(unsigned int id)
+{
+ /* REVISIT: Check correctly for number of registered McBSPs */
+ if (cpu_is_omap730()) {
+ if (id > OMAP_MAX_MCBSP_COUNT - 2) {
+ printk(KERN_ERR "OMAP-McBSP: McBSP%d doesn't exist\n",
+ id + 1);
+ return -ENODEV;
+ }
+ return 0;
+ }
+
+ if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
+ if (id > OMAP_MAX_MCBSP_COUNT - 1) {
+ printk(KERN_ERR "OMAP-McBSP: McBSP%d doesn't exist\n",
+ id + 1);
+ return -ENODEV;
+ }
+ return 0;
+ }
+
+ return -ENODEV;
+}
+
+static void omap1_mcbsp_request(unsigned int id)
+{
+ /*
+ * On 1510, 1610 and 1710, McBSP1 and McBSP3
+ * are DSP public peripherals.
+ */
+ if (id == OMAP_MCBSP1 || id == OMAP_MCBSP3) {
+ omap_dsp_request_mem();
+ /*
+ * DSP external peripheral reset
+ * FIXME: This should be moved to dsp code
+ */
+ __raw_writew(__raw_readw(DSP_RSTCT2) | DPS_RSTCT2_PER_EN |
+ DSP_RSTCT2_WD_PER_EN, DSP_RSTCT2);
+ }
+}
+
+static void omap1_mcbsp_free(unsigned int id)
+{
+ if (id == OMAP_MCBSP1 || id == OMAP_MCBSP3)
+ omap_dsp_release_mem();
+}
+
+static struct omap_mcbsp_ops omap1_mcbsp_ops = {
+ .check = omap1_mcbsp_check,
+ .request = omap1_mcbsp_request,
+ .free = omap1_mcbsp_free,
+};
+
+static struct omap_mcbsp_platform_data omap1_mcbsp_pdata[] = {
+#ifdef CONFIG_ARCH_OMAP730
+ {
+ .virt_base = io_p2v(OMAP730_MCBSP1_BASE),
+ .dma_rx_sync = OMAP_DMA_MCBSP1_RX,
+ .dma_tx_sync = OMAP_DMA_MCBSP1_TX,
+ .rx_irq = INT_730_McBSP1RX,
+ .tx_irq = INT_730_McBSP1TX,
+ .ops = &omap1_mcbsp_ops,
+ },
+ {
+ .virt_base = io_p2v(OMAP730_MCBSP2_BASE),
+ .dma_rx_sync = OMAP_DMA_MCBSP3_RX,
+ .dma_tx_sync = OMAP_DMA_MCBSP3_TX,
+ .rx_irq = INT_730_McBSP2RX,
+ .tx_irq = INT_730_McBSP2TX
+ .ops = &omap1_mcbsp_ops,
+ },
+#endif
+#ifdef CONFIG_ARCH_OMAP15XX
+ {
+ .virt_base = OMAP1510_MCBSP1_BASE,
+ .dma_rx_sync = OMAP_DMA_MCBSP1_RX,
+ .dma_tx_sync = OMAP_DMA_MCBSP1_TX,
+ .rx_irq = INT_McBSP1RX,
+ .tx_irq = INT_McBSP1TX,
+ .ops = &omap1_mcbsp_ops,
+ .clocks = { "dsp_ck", "api_ck", "dspxor_ck" },
+ },
+ {
+ .virt_base = io_p2v(OMAP1510_MCBSP2_BASE),
+ .dma_rx_sync = OMAP_DMA_MCBSP2_RX,
+ .dma_tx_sync = OMAP_DMA_MCBSP2_TX,
+ .rx_irq = INT_1510_SPI_RX,
+ .tx_irq = INT_1510_SPI_TX,
+ .ops = &omap1_mcbsp_ops,
+ },
+ {
+ .virt_base = OMAP1510_MCBSP3_BASE,
+ .dma_rx_sync = OMAP_DMA_MCBSP3_RX,
+ .dma_tx_sync = OMAP_DMA_MCBSP3_TX,
+ .rx_irq = INT_McBSP3RX,
+ .tx_irq = INT_McBSP3TX,
+ .ops = &omap1_mcbsp_ops,
+ .clocks = { "dsp_ck", "api_ck", "dspxor_ck" },
+ },
+#endif
+#ifdef CONFIG_ARCH_OMAP16XX
+ {
+ .virt_base = OMAP1610_MCBSP1_BASE,
+ .dma_rx_sync = OMAP_DMA_MCBSP1_RX,
+ .dma_tx_sync = OMAP_DMA_MCBSP1_TX,
+ .rx_irq = INT_McBSP1RX,
+ .tx_irq = INT_McBSP1TX,
+ .ops = &omap1_mcbsp_ops,
+ .clocks = { "dsp_ck", "api_ck", "dspxor_ck" },
+ },
+ {
+ .virt_base = io_p2v(OMAP1610_MCBSP2_BASE),
+ .dma_rx_sync = OMAP_DMA_MCBSP2_RX,
+ .dma_tx_sync = OMAP_DMA_MCBSP2_TX,
+ .rx_irq = INT_1610_McBSP2_RX,
+ .tx_irq = INT_1610_McBSP2_TX,
+ .ops = &omap1_mcbsp_ops,
+ },
+ {
+ .virt_base = OMAP1610_MCBSP3_BASE,
+ .dma_rx_sync = OMAP_DMA_MCBSP3_RX,
+ .dma_tx_sync = OMAP_DMA_MCBSP3_TX,
+ .rx_irq = INT_McBSP3RX,
+ .tx_irq = INT_McBSP3TX,
+ .ops = &omap1_mcbsp_ops,
+ .clocks = { "dsp_ck", "api_ck", "dspxor_ck" },
+ },
+#endif
+};
+#define mcbsp_count ARRAY_SIZE(omap1_mcbsp_pdata)
+
+int __init omap1_mcbsp_init(void)
+{
+ omap_mcbsp_register_board_cfg(omap1_mcbsp_pdata, mcbsp_count);
+
+ return omap_mcbsp_init();
+}
+arch_initcall(omap1_mcbsp_init);
--
1.5.5.1.67.gbdb8.dirty
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
|
