Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 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 | |
Tony Lindgren | dd7667a | 2009-01-15 13:09:51 +0200 | [diff] [blame] | 20 | #include <mach/irqs.h> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 21 | #include <mach/dma.h> |
Russell King | 80b02c1 | 2009-01-08 10:01:47 +0000 | [diff] [blame] | 22 | #include <mach/irqs.h> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 23 | #include <mach/mux.h> |
| 24 | #include <mach/cpu.h> |
| 25 | #include <mach/mcbsp.h> |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 26 | |
Stanley.Miao | 0615115 | 2009-01-29 08:57:12 -0800 | [diff] [blame] | 27 | const char *clk_names[] = { "mcbsp_ick", "mcbsp_fck" }; |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 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 | |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 47 | static struct omap_mcbsp_ops omap2_mcbsp_ops = { |
| 48 | .request = omap2_mcbsp_request, |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 49 | }; |
| 50 | |
Jarkko Nikula | 05228c3 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 51 | #ifdef CONFIG_ARCH_OMAP2420 |
| 52 | static struct omap_mcbsp_platform_data omap2420_mcbsp_pdata[] = { |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 53 | { |
Russell King | 6584690 | 2008-09-03 23:46:18 +0100 | [diff] [blame] | 54 | .phys_base = OMAP24XX_MCBSP1_BASE, |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 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, |
Stanley.Miao | 0615115 | 2009-01-29 08:57:12 -0800 | [diff] [blame] | 60 | .clk_names = clk_names, |
| 61 | .num_clks = 2, |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 62 | }, |
| 63 | { |
Russell King | 6584690 | 2008-09-03 23:46:18 +0100 | [diff] [blame] | 64 | .phys_base = OMAP24XX_MCBSP2_BASE, |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 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, |
Stanley.Miao | 0615115 | 2009-01-29 08:57:12 -0800 | [diff] [blame] | 70 | .clk_names = clk_names, |
| 71 | .num_clks = 2, |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 72 | }, |
| 73 | }; |
Jarkko Nikula | 05228c3 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 74 | #define OMAP2420_MCBSP_PDATA_SZ ARRAY_SIZE(omap2420_mcbsp_pdata) |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 75 | #else |
Jarkko Nikula | 05228c3 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 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, |
Stanley.Miao | 0615115 | 2009-01-29 08:57:12 -0800 | [diff] [blame] | 89 | .clk_names = clk_names, |
| 90 | .num_clks = 2, |
Jarkko Nikula | 05228c3 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 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, |
Stanley.Miao | 0615115 | 2009-01-29 08:57:12 -0800 | [diff] [blame] | 99 | .clk_names = clk_names, |
| 100 | .num_clks = 2, |
Jarkko Nikula | 05228c3 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 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, |
Stanley.Miao | 0615115 | 2009-01-29 08:57:12 -0800 | [diff] [blame] | 109 | .clk_names = clk_names, |
| 110 | .num_clks = 2, |
Jarkko Nikula | 05228c3 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 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, |
Stanley.Miao | 0615115 | 2009-01-29 08:57:12 -0800 | [diff] [blame] | 119 | .clk_names = clk_names, |
| 120 | .num_clks = 2, |
Jarkko Nikula | 05228c3 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 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, |
Stanley.Miao | 0615115 | 2009-01-29 08:57:12 -0800 | [diff] [blame] | 129 | .clk_names = clk_names, |
| 130 | .num_clks = 2, |
Jarkko Nikula | 05228c3 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 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 |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 137 | #endif |
| 138 | |
| 139 | #ifdef CONFIG_ARCH_OMAP34XX |
| 140 | static struct omap_mcbsp_platform_data omap34xx_mcbsp_pdata[] = { |
| 141 | { |
Russell King | 6584690 | 2008-09-03 23:46:18 +0100 | [diff] [blame] | 142 | .phys_base = OMAP34XX_MCBSP1_BASE, |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 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, |
Stanley.Miao | 0615115 | 2009-01-29 08:57:12 -0800 | [diff] [blame] | 148 | .clk_names = clk_names, |
| 149 | .num_clks = 2, |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 150 | }, |
| 151 | { |
Russell King | 6584690 | 2008-09-03 23:46:18 +0100 | [diff] [blame] | 152 | .phys_base = OMAP34XX_MCBSP2_BASE, |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 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, |
Stanley.Miao | 0615115 | 2009-01-29 08:57:12 -0800 | [diff] [blame] | 158 | .clk_names = clk_names, |
| 159 | .num_clks = 2, |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 160 | }, |
Chandra Shekhar | 9c8e3a0 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 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, |
Stanley.Miao | 0615115 | 2009-01-29 08:57:12 -0800 | [diff] [blame] | 168 | .clk_names = clk_names, |
| 169 | .num_clks = 2, |
Chandra Shekhar | 9c8e3a0 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 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, |
Stanley.Miao | 0615115 | 2009-01-29 08:57:12 -0800 | [diff] [blame] | 178 | .clk_names = clk_names, |
| 179 | .num_clks = 2, |
Chandra Shekhar | 9c8e3a0 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 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, |
Stanley.Miao | 0615115 | 2009-01-29 08:57:12 -0800 | [diff] [blame] | 188 | .clk_names = clk_names, |
| 189 | .num_clks = 2, |
Chandra Shekhar | 9c8e3a0 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 190 | }, |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 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 | |
Chandra Shekhar | b4b58f5 | 2008-10-08 10:01:39 +0300 | [diff] [blame] | 198 | static int __init omap2_mcbsp_init(void) |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 199 | { |
Jarkko Nikula | 05228c3 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 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; |
Chandra Shekhar | b4b58f5 | 2008-10-08 10:01:39 +0300 | [diff] [blame] | 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 | |
Jarkko Nikula | 05228c3 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 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); |
Chandra Shekhar | 9c8e3a0 | 2008-10-08 10:01:40 +0300 | [diff] [blame] | 218 | if (cpu_is_omap34xx()) |
| 219 | omap_mcbsp_register_board_cfg(omap34xx_mcbsp_pdata, |
| 220 | OMAP34XX_MCBSP_PDATA_SZ); |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 221 | |
Eduardo Valentin | 78673bc | 2008-07-03 12:24:40 +0300 | [diff] [blame] | 222 | return omap_mcbsp_init(); |
| 223 | } |
| 224 | arch_initcall(omap2_mcbsp_init); |