Kukjin Kim | f1fee58 | 2010-09-08 19:25:44 +0900 | [diff] [blame] | 1 | /* linux/arch/arm/mach-s5p64x0/dma.c |
| 2 | * |
| 3 | * Copyright (c) 2010 Samsung Electronics Co., Ltd. |
| 4 | * http://www.samsung.com |
| 5 | * |
| 6 | * Copyright (C) 2010 Samsung Electronics Co. Ltd. |
| 7 | * Jaswinder Singh <jassi.brar@samsung.com> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 22 | */ |
| 23 | |
Kukjin Kim | f1fee58 | 2010-09-08 19:25:44 +0900 | [diff] [blame] | 24 | #include <linux/dma-mapping.h> |
Boojin Kim | 3091e61 | 2011-09-02 09:44:39 +0900 | [diff] [blame^] | 25 | #include <linux/amba/bus.h> |
| 26 | #include <linux/amba/pl330.h> |
| 27 | |
| 28 | #include <asm/irq.h> |
Kukjin Kim | f1fee58 | 2010-09-08 19:25:44 +0900 | [diff] [blame] | 29 | |
| 30 | #include <mach/map.h> |
| 31 | #include <mach/irqs.h> |
| 32 | #include <mach/regs-clock.h> |
Boojin Kim | 3091e61 | 2011-09-02 09:44:39 +0900 | [diff] [blame^] | 33 | #include <mach/dma.h> |
Kukjin Kim | f1fee58 | 2010-09-08 19:25:44 +0900 | [diff] [blame] | 34 | |
| 35 | #include <plat/devs.h> |
Boojin Kim | 3091e61 | 2011-09-02 09:44:39 +0900 | [diff] [blame^] | 36 | #include <plat/irqs.h> |
Kukjin Kim | f1fee58 | 2010-09-08 19:25:44 +0900 | [diff] [blame] | 37 | |
| 38 | static u64 dma_dmamask = DMA_BIT_MASK(32); |
| 39 | |
Boojin Kim | 3091e61 | 2011-09-02 09:44:39 +0900 | [diff] [blame^] | 40 | struct dma_pl330_peri s5p6440_pdma_peri[22] = { |
| 41 | { |
| 42 | .peri_id = (u8)DMACH_UART0_RX, |
| 43 | .rqtype = DEVTOMEM, |
| 44 | }, { |
| 45 | .peri_id = (u8)DMACH_UART0_TX, |
| 46 | .rqtype = MEMTODEV, |
| 47 | }, { |
| 48 | .peri_id = (u8)DMACH_UART1_RX, |
| 49 | .rqtype = DEVTOMEM, |
| 50 | }, { |
| 51 | .peri_id = (u8)DMACH_UART1_TX, |
| 52 | .rqtype = MEMTODEV, |
| 53 | }, { |
| 54 | .peri_id = (u8)DMACH_UART2_RX, |
| 55 | .rqtype = DEVTOMEM, |
| 56 | }, { |
| 57 | .peri_id = (u8)DMACH_UART2_TX, |
| 58 | .rqtype = MEMTODEV, |
| 59 | }, { |
| 60 | .peri_id = (u8)DMACH_UART3_RX, |
| 61 | .rqtype = DEVTOMEM, |
| 62 | }, { |
| 63 | .peri_id = (u8)DMACH_UART3_TX, |
| 64 | .rqtype = MEMTODEV, |
| 65 | }, { |
| 66 | .peri_id = DMACH_MAX, |
| 67 | }, { |
| 68 | .peri_id = DMACH_MAX, |
| 69 | }, { |
| 70 | .peri_id = (u8)DMACH_PCM0_TX, |
| 71 | .rqtype = MEMTODEV, |
| 72 | }, { |
| 73 | .peri_id = (u8)DMACH_PCM0_RX, |
| 74 | .rqtype = DEVTOMEM, |
| 75 | }, { |
| 76 | .peri_id = (u8)DMACH_I2S0_TX, |
| 77 | .rqtype = MEMTODEV, |
| 78 | }, { |
| 79 | .peri_id = (u8)DMACH_I2S0_RX, |
| 80 | .rqtype = DEVTOMEM, |
| 81 | }, { |
| 82 | .peri_id = (u8)DMACH_SPI0_TX, |
| 83 | .rqtype = MEMTODEV, |
| 84 | }, { |
| 85 | .peri_id = (u8)DMACH_SPI0_RX, |
| 86 | .rqtype = DEVTOMEM, |
| 87 | }, { |
| 88 | .peri_id = (u8)DMACH_MAX, |
| 89 | }, { |
| 90 | .peri_id = (u8)DMACH_MAX, |
| 91 | }, { |
| 92 | .peri_id = (u8)DMACH_MAX, |
| 93 | }, { |
| 94 | .peri_id = (u8)DMACH_MAX, |
| 95 | }, { |
| 96 | .peri_id = (u8)DMACH_SPI1_TX, |
| 97 | .rqtype = MEMTODEV, |
| 98 | }, { |
| 99 | .peri_id = (u8)DMACH_SPI1_RX, |
| 100 | .rqtype = DEVTOMEM, |
Kukjin Kim | f1fee58 | 2010-09-08 19:25:44 +0900 | [diff] [blame] | 101 | }, |
| 102 | }; |
| 103 | |
Boojin Kim | 3091e61 | 2011-09-02 09:44:39 +0900 | [diff] [blame^] | 104 | struct dma_pl330_platdata s5p6440_pdma_pdata = { |
| 105 | .nr_valid_peri = ARRAY_SIZE(s5p6440_pdma_peri), |
| 106 | .peri = s5p6440_pdma_peri, |
| 107 | }; |
| 108 | |
| 109 | struct dma_pl330_peri s5p6450_pdma_peri[32] = { |
| 110 | { |
| 111 | .peri_id = (u8)DMACH_UART0_RX, |
| 112 | .rqtype = DEVTOMEM, |
| 113 | }, { |
| 114 | .peri_id = (u8)DMACH_UART0_TX, |
| 115 | .rqtype = MEMTODEV, |
| 116 | }, { |
| 117 | .peri_id = (u8)DMACH_UART1_RX, |
| 118 | .rqtype = DEVTOMEM, |
| 119 | }, { |
| 120 | .peri_id = (u8)DMACH_UART1_TX, |
| 121 | .rqtype = MEMTODEV, |
| 122 | }, { |
| 123 | .peri_id = (u8)DMACH_UART2_RX, |
| 124 | .rqtype = DEVTOMEM, |
| 125 | }, { |
| 126 | .peri_id = (u8)DMACH_UART2_TX, |
| 127 | .rqtype = MEMTODEV, |
| 128 | }, { |
| 129 | .peri_id = (u8)DMACH_UART3_RX, |
| 130 | .rqtype = DEVTOMEM, |
| 131 | }, { |
| 132 | .peri_id = (u8)DMACH_UART3_TX, |
| 133 | .rqtype = MEMTODEV, |
| 134 | }, { |
| 135 | .peri_id = (u8)DMACH_UART4_RX, |
| 136 | .rqtype = DEVTOMEM, |
| 137 | }, { |
| 138 | .peri_id = (u8)DMACH_UART4_TX, |
| 139 | .rqtype = MEMTODEV, |
| 140 | }, { |
| 141 | .peri_id = (u8)DMACH_PCM0_TX, |
| 142 | .rqtype = MEMTODEV, |
| 143 | }, { |
| 144 | .peri_id = (u8)DMACH_PCM0_RX, |
| 145 | .rqtype = DEVTOMEM, |
| 146 | }, { |
| 147 | .peri_id = (u8)DMACH_I2S0_TX, |
| 148 | .rqtype = MEMTODEV, |
| 149 | }, { |
| 150 | .peri_id = (u8)DMACH_I2S0_RX, |
| 151 | .rqtype = DEVTOMEM, |
| 152 | }, { |
| 153 | .peri_id = (u8)DMACH_SPI0_TX, |
| 154 | .rqtype = MEMTODEV, |
| 155 | }, { |
| 156 | .peri_id = (u8)DMACH_SPI0_RX, |
| 157 | .rqtype = DEVTOMEM, |
| 158 | }, { |
| 159 | .peri_id = (u8)DMACH_PCM1_TX, |
| 160 | .rqtype = MEMTODEV, |
| 161 | }, { |
| 162 | .peri_id = (u8)DMACH_PCM1_RX, |
| 163 | .rqtype = DEVTOMEM, |
| 164 | }, { |
| 165 | .peri_id = (u8)DMACH_PCM2_TX, |
| 166 | .rqtype = MEMTODEV, |
| 167 | }, { |
| 168 | .peri_id = (u8)DMACH_PCM2_RX, |
| 169 | .rqtype = DEVTOMEM, |
| 170 | }, { |
| 171 | .peri_id = (u8)DMACH_SPI1_TX, |
| 172 | .rqtype = MEMTODEV, |
| 173 | }, { |
| 174 | .peri_id = (u8)DMACH_SPI1_RX, |
| 175 | .rqtype = DEVTOMEM, |
| 176 | }, { |
| 177 | .peri_id = (u8)DMACH_USI_TX, |
| 178 | .rqtype = MEMTODEV, |
| 179 | }, { |
| 180 | .peri_id = (u8)DMACH_USI_RX, |
| 181 | .rqtype = DEVTOMEM, |
| 182 | }, { |
| 183 | .peri_id = (u8)DMACH_MAX, |
| 184 | }, { |
| 185 | .peri_id = (u8)DMACH_I2S1_TX, |
| 186 | .rqtype = MEMTODEV, |
| 187 | }, { |
| 188 | .peri_id = (u8)DMACH_I2S1_RX, |
| 189 | .rqtype = DEVTOMEM, |
| 190 | }, { |
| 191 | .peri_id = (u8)DMACH_I2S2_TX, |
| 192 | .rqtype = MEMTODEV, |
| 193 | }, { |
| 194 | .peri_id = (u8)DMACH_I2S2_RX, |
| 195 | .rqtype = DEVTOMEM, |
| 196 | }, { |
| 197 | .peri_id = (u8)DMACH_PWM, |
| 198 | }, { |
| 199 | .peri_id = (u8)DMACH_UART5_RX, |
| 200 | .rqtype = DEVTOMEM, |
| 201 | }, { |
| 202 | .peri_id = (u8)DMACH_UART5_TX, |
| 203 | .rqtype = MEMTODEV, |
Kukjin Kim | f1fee58 | 2010-09-08 19:25:44 +0900 | [diff] [blame] | 204 | }, |
| 205 | }; |
| 206 | |
Boojin Kim | 3091e61 | 2011-09-02 09:44:39 +0900 | [diff] [blame^] | 207 | struct dma_pl330_platdata s5p6450_pdma_pdata = { |
| 208 | .nr_valid_peri = ARRAY_SIZE(s5p6450_pdma_peri), |
| 209 | .peri = s5p6450_pdma_peri, |
Kukjin Kim | f1fee58 | 2010-09-08 19:25:44 +0900 | [diff] [blame] | 210 | }; |
| 211 | |
Boojin Kim | 3091e61 | 2011-09-02 09:44:39 +0900 | [diff] [blame^] | 212 | struct amba_device s5p64x0_device_pdma = { |
| 213 | .dev = { |
| 214 | .init_name = "dma-pl330", |
Kukjin Kim | f1fee58 | 2010-09-08 19:25:44 +0900 | [diff] [blame] | 215 | .dma_mask = &dma_dmamask, |
| 216 | .coherent_dma_mask = DMA_BIT_MASK(32), |
| 217 | }, |
Boojin Kim | 3091e61 | 2011-09-02 09:44:39 +0900 | [diff] [blame^] | 218 | .res = { |
| 219 | .start = S5P64X0_PA_PDMA, |
| 220 | .end = S5P64X0_PA_PDMA + SZ_4K, |
| 221 | .flags = IORESOURCE_MEM, |
| 222 | }, |
| 223 | .irq = {IRQ_DMA0, NO_IRQ}, |
| 224 | .periphid = 0x00041330, |
Kukjin Kim | f1fee58 | 2010-09-08 19:25:44 +0900 | [diff] [blame] | 225 | }; |
| 226 | |
| 227 | static int __init s5p64x0_dma_init(void) |
| 228 | { |
Boojin Kim | 3091e61 | 2011-09-02 09:44:39 +0900 | [diff] [blame^] | 229 | unsigned int id = __raw_readl(S5P64X0_SYS_ID) & 0xFF000; |
Kukjin Kim | f1fee58 | 2010-09-08 19:25:44 +0900 | [diff] [blame] | 230 | |
| 231 | if (id == 0x50000) |
| 232 | s5p64x0_device_pdma.dev.platform_data = &s5p6450_pdma_pdata; |
| 233 | else |
| 234 | s5p64x0_device_pdma.dev.platform_data = &s5p6440_pdma_pdata; |
| 235 | |
Boojin Kim | 3091e61 | 2011-09-02 09:44:39 +0900 | [diff] [blame^] | 236 | amba_device_register(&s5p64x0_device_pdma, &iomem_resource); |
Kukjin Kim | f1fee58 | 2010-09-08 19:25:44 +0900 | [diff] [blame] | 237 | |
| 238 | return 0; |
| 239 | } |
| 240 | arch_initcall(s5p64x0_dma_init); |