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  1/*
  2 * Copyright (C) ST-Ericsson SA 2010
  3 *
  4 * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
  5 * License terms: GNU General Public License (GPL) version 2
  6 */
  7
  8#include <linux/kernel.h>
  9#include <linux/platform_device.h>
 10#include <linux/interrupt.h>
 11#include <linux/io.h>
 12#include <linux/gpio.h>
 13#include <linux/amba/bus.h>
 14#include <linux/amba/pl022.h>
 15
 16#include <plat/ste_dma40.h>
 17
 18#include <mach/hardware.h>
 19#include <mach/setup.h>
 20
 21#include "ste-dma40-db8500.h"
 22
 23static struct resource dma40_resources[] = {
 24	[0] = {
 25		.start = U8500_DMA_BASE,
 26		.end   = U8500_DMA_BASE + SZ_4K - 1,
 27		.flags = IORESOURCE_MEM,
 28		.name  = "base",
 29	},
 30	[1] = {
 31		.start = U8500_DMA_LCPA_BASE,
 32		.end   = U8500_DMA_LCPA_BASE + 2 * SZ_1K - 1,
 33		.flags = IORESOURCE_MEM,
 34		.name  = "lcpa",
 35	},
 36	[2] = {
 37		.start = IRQ_DB8500_DMA,
 38		.end   = IRQ_DB8500_DMA,
 39		.flags = IORESOURCE_IRQ,
 40	}
 41};
 42
 43/* Default configuration for physcial memcpy */
 44struct stedma40_chan_cfg dma40_memcpy_conf_phy = {
 45	.mode = STEDMA40_MODE_PHYSICAL,
 46	.dir = STEDMA40_MEM_TO_MEM,
 47
 48	.src_info.data_width = STEDMA40_BYTE_WIDTH,
 49	.src_info.psize = STEDMA40_PSIZE_PHY_1,
 50	.src_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,
 51
 52	.dst_info.data_width = STEDMA40_BYTE_WIDTH,
 53	.dst_info.psize = STEDMA40_PSIZE_PHY_1,
 54	.dst_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,
 55};
 56/* Default configuration for logical memcpy */
 57struct stedma40_chan_cfg dma40_memcpy_conf_log = {
 58	.dir = STEDMA40_MEM_TO_MEM,
 59
 60	.src_info.data_width = STEDMA40_BYTE_WIDTH,
 61	.src_info.psize = STEDMA40_PSIZE_LOG_1,
 62	.src_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,
 63
 64	.dst_info.data_width = STEDMA40_BYTE_WIDTH,
 65	.dst_info.psize = STEDMA40_PSIZE_LOG_1,
 66	.dst_info.flow_ctrl = STEDMA40_NO_FLOW_CTRL,
 67};
 68
 69/*
 70 * Mapping between destination event lines and physical device address.
 71 * The event line is tied to a device and therefore the address is constant.
 72 * When the address comes from a primecell it will be configured in runtime
 73 * and we set the address to -1 as a placeholder.
 74 */
 75static const dma_addr_t dma40_tx_map[DB8500_DMA_NR_DEV] = {
 76	/* MUSB - these will be runtime-reconfigured */
 77	[DB8500_DMA_DEV39_USB_OTG_OEP_8] = -1,
 78	[DB8500_DMA_DEV16_USB_OTG_OEP_7_15] = -1,
 79	[DB8500_DMA_DEV17_USB_OTG_OEP_6_14] = -1,
 80	[DB8500_DMA_DEV18_USB_OTG_OEP_5_13] = -1,
 81	[DB8500_DMA_DEV19_USB_OTG_OEP_4_12] = -1,
 82	[DB8500_DMA_DEV36_USB_OTG_OEP_3_11] = -1,
 83	[DB8500_DMA_DEV37_USB_OTG_OEP_2_10] = -1,
 84	[DB8500_DMA_DEV38_USB_OTG_OEP_1_9] = -1,
 85	/* PrimeCells - run-time configured */
 86	[DB8500_DMA_DEV0_SPI0_TX] = -1,
 87	[DB8500_DMA_DEV1_SD_MMC0_TX] = -1,
 88	[DB8500_DMA_DEV2_SD_MMC1_TX] = -1,
 89	[DB8500_DMA_DEV3_SD_MMC2_TX] = -1,
 90	[DB8500_DMA_DEV8_SSP0_TX] = -1,
 91	[DB8500_DMA_DEV9_SSP1_TX] = -1,
 92	[DB8500_DMA_DEV11_UART2_TX] = -1,
 93	[DB8500_DMA_DEV12_UART1_TX] = -1,
 94	[DB8500_DMA_DEV13_UART0_TX] = -1,
 95	[DB8500_DMA_DEV28_SD_MM2_TX] = -1,
 96	[DB8500_DMA_DEV29_SD_MM0_TX] = -1,
 97	[DB8500_DMA_DEV32_SD_MM1_TX] = -1,
 98	[DB8500_DMA_DEV33_SPI2_TX] = -1,
 99	[DB8500_DMA_DEV35_SPI1_TX] = -1,
100	[DB8500_DMA_DEV40_SPI3_TX] = -1,
101	[DB8500_DMA_DEV41_SD_MM3_TX] = -1,
102	[DB8500_DMA_DEV42_SD_MM4_TX] = -1,
103	[DB8500_DMA_DEV43_SD_MM5_TX] = -1,
104};
105
106/* Mapping between source event lines and physical device address */
107static const dma_addr_t dma40_rx_map[DB8500_DMA_NR_DEV] = {
108	/* MUSB - these will be runtime-reconfigured */
109	[DB8500_DMA_DEV39_USB_OTG_IEP_8] = -1,
110	[DB8500_DMA_DEV16_USB_OTG_IEP_7_15] = -1,
111	[DB8500_DMA_DEV17_USB_OTG_IEP_6_14] = -1,
112	[DB8500_DMA_DEV18_USB_OTG_IEP_5_13] = -1,
113	[DB8500_DMA_DEV19_USB_OTG_IEP_4_12] = -1,
114	[DB8500_DMA_DEV36_USB_OTG_IEP_3_11] = -1,
115	[DB8500_DMA_DEV37_USB_OTG_IEP_2_10] = -1,
116	[DB8500_DMA_DEV38_USB_OTG_IEP_1_9] = -1,
117	/* PrimeCells */
118	[DB8500_DMA_DEV0_SPI0_RX] = -1,
119	[DB8500_DMA_DEV1_SD_MMC0_RX] = -1,
120	[DB8500_DMA_DEV2_SD_MMC1_RX] = -1,
121	[DB8500_DMA_DEV3_SD_MMC2_RX] = -1,
122	[DB8500_DMA_DEV8_SSP0_RX] = -1,
123	[DB8500_DMA_DEV9_SSP1_RX] = -1,
124	[DB8500_DMA_DEV11_UART2_RX] = -1,
125	[DB8500_DMA_DEV12_UART1_RX] = -1,
126	[DB8500_DMA_DEV13_UART0_RX] = -1,
127	[DB8500_DMA_DEV28_SD_MM2_RX] = -1,
128	[DB8500_DMA_DEV29_SD_MM0_RX] = -1,
129	[DB8500_DMA_DEV32_SD_MM1_RX] = -1,
130	[DB8500_DMA_DEV33_SPI2_RX] = -1,
131	[DB8500_DMA_DEV35_SPI1_RX] = -1,
132	[DB8500_DMA_DEV40_SPI3_RX] = -1,
133	[DB8500_DMA_DEV41_SD_MM3_RX] = -1,
134	[DB8500_DMA_DEV42_SD_MM4_RX] = -1,
135	[DB8500_DMA_DEV43_SD_MM5_RX] = -1,
136};
137
138/* Reserved event lines for memcpy only */
139static int dma40_memcpy_event[] = {
140	DB8500_DMA_MEMCPY_TX_0,
141	DB8500_DMA_MEMCPY_TX_1,
142	DB8500_DMA_MEMCPY_TX_2,
143	DB8500_DMA_MEMCPY_TX_3,
144	DB8500_DMA_MEMCPY_TX_4,
145	DB8500_DMA_MEMCPY_TX_5,
146};
147
148static struct stedma40_platform_data dma40_plat_data = {
149	.dev_len = DB8500_DMA_NR_DEV,
150	.dev_rx = dma40_rx_map,
151	.dev_tx = dma40_tx_map,
152	.memcpy = dma40_memcpy_event,
153	.memcpy_len = ARRAY_SIZE(dma40_memcpy_event),
154	.memcpy_conf_phy = &dma40_memcpy_conf_phy,
155	.memcpy_conf_log = &dma40_memcpy_conf_log,
156	.disabled_channels = {-1},
157};
158
159struct platform_device u8500_dma40_device = {
160	.dev = {
161		.platform_data = &dma40_plat_data,
162	},
163	.name = "dma40",
164	.id = 0,
165	.num_resources = ARRAY_SIZE(dma40_resources),
166	.resource = dma40_resources
167};
168
169void dma40_u8500ed_fixup(void)
170{
171	dma40_plat_data.memcpy = NULL;
172	dma40_plat_data.memcpy_len = 0;
173	dma40_resources[0].start = U8500_DMA_BASE_ED;
174	dma40_resources[0].end = U8500_DMA_BASE_ED + SZ_4K - 1;
175	dma40_resources[1].start = U8500_DMA_LCPA_BASE_ED;
176	dma40_resources[1].end = U8500_DMA_LCPA_BASE_ED + 2 * SZ_1K - 1;
177}
178
179struct resource keypad_resources[] = {
180	[0] = {
181		.start = U8500_SKE_BASE,
182		.end = U8500_SKE_BASE + SZ_4K - 1,
183		.flags = IORESOURCE_MEM,
184	},
185	[1] = {
186		.start = IRQ_DB8500_KB,
187		.end = IRQ_DB8500_KB,
188		.flags = IORESOURCE_IRQ,
189	},
190};
191
192struct platform_device u8500_ske_keypad_device = {
193	.name = "nmk-ske-keypad",
194	.id = -1,
195	.num_resources = ARRAY_SIZE(keypad_resources),
196	.resource = keypad_resources,
197};