2 * Copyright (C) ST-Ericsson SA 2011
4 * Author: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
5 * License terms: GNU General Public License (GPL) version 2
7 #include <linux/platform_device.h>
8 #include <linux/usb/musb.h>
9 #include <linux/dma-mapping.h>
11 #include <plat/ste_dma40.h>
12 #include <mach/hardware.h>
13 #include <linux/platform_data/usb-musb-ux500.h>
15 #define MUSB_DMA40_RX_CH { \
16 .mode = STEDMA40_MODE_LOGICAL, \
17 .dir = STEDMA40_PERIPH_TO_MEM, \
18 .dst_dev_type = STEDMA40_DEV_DST_MEMORY, \
19 .src_info.data_width = STEDMA40_WORD_WIDTH, \
20 .dst_info.data_width = STEDMA40_WORD_WIDTH, \
21 .src_info.psize = STEDMA40_PSIZE_LOG_16, \
22 .dst_info.psize = STEDMA40_PSIZE_LOG_16, \
25 #define MUSB_DMA40_TX_CH { \
26 .mode = STEDMA40_MODE_LOGICAL, \
27 .dir = STEDMA40_MEM_TO_PERIPH, \
28 .src_dev_type = STEDMA40_DEV_SRC_MEMORY, \
29 .src_info.data_width = STEDMA40_WORD_WIDTH, \
30 .dst_info.data_width = STEDMA40_WORD_WIDTH, \
31 .src_info.psize = STEDMA40_PSIZE_LOG_16, \
32 .dst_info.psize = STEDMA40_PSIZE_LOG_16, \
35 static struct stedma40_chan_cfg musb_dma_rx_ch
[UX500_MUSB_DMA_NUM_RX_CHANNELS
]
47 static struct stedma40_chan_cfg musb_dma_tx_ch
[UX500_MUSB_DMA_NUM_TX_CHANNELS
]
59 static void *ux500_dma_rx_param_array
[UX500_MUSB_DMA_NUM_RX_CHANNELS
] = {
70 static void *ux500_dma_tx_param_array
[UX500_MUSB_DMA_NUM_TX_CHANNELS
] = {
81 static struct ux500_musb_board_data musb_board_data
= {
82 .dma_rx_param_array
= ux500_dma_rx_param_array
,
83 .dma_tx_param_array
= ux500_dma_tx_param_array
,
84 .num_rx_channels
= UX500_MUSB_DMA_NUM_RX_CHANNELS
,
85 .num_tx_channels
= UX500_MUSB_DMA_NUM_TX_CHANNELS
,
86 .dma_filter
= stedma40_filter
,
89 static u64 ux500_musb_dmamask
= DMA_BIT_MASK(32);
91 static struct musb_hdrc_config musb_hdrc_config
= {
98 static struct musb_hdrc_platform_data musb_platform_data
= {
100 .config
= &musb_hdrc_config
,
101 .board_data
= &musb_board_data
,
104 static struct resource usb_resources
[] = {
107 .flags
= IORESOURCE_MEM
,
111 .name
= "mc", /* hard-coded in musb */
112 .flags
= IORESOURCE_IRQ
,
116 struct platform_device ux500_musb_device
= {
117 .name
= "musb-ux500",
120 .platform_data
= &musb_platform_data
,
121 .dma_mask
= &ux500_musb_dmamask
,
122 .coherent_dma_mask
= DMA_BIT_MASK(32),
124 .num_resources
= ARRAY_SIZE(usb_resources
),
125 .resource
= usb_resources
,
128 static inline void ux500_usb_dma_update_rx_ch_config(int *src_dev_type
)
132 for (idx
= 0; idx
< UX500_MUSB_DMA_NUM_RX_CHANNELS
; idx
++)
133 musb_dma_rx_ch
[idx
].src_dev_type
= src_dev_type
[idx
];
136 static inline void ux500_usb_dma_update_tx_ch_config(int *dst_dev_type
)
140 for (idx
= 0; idx
< UX500_MUSB_DMA_NUM_TX_CHANNELS
; idx
++)
141 musb_dma_tx_ch
[idx
].dst_dev_type
= dst_dev_type
[idx
];
144 void ux500_add_usb(struct device
*parent
, resource_size_t base
, int irq
,
145 int *dma_rx_cfg
, int *dma_tx_cfg
)
147 ux500_musb_device
.resource
[0].start
= base
;
148 ux500_musb_device
.resource
[0].end
= base
+ SZ_64K
- 1;
149 ux500_musb_device
.resource
[1].start
= irq
;
150 ux500_musb_device
.resource
[1].end
= irq
;
152 ux500_usb_dma_update_rx_ch_config(dma_rx_cfg
);
153 ux500_usb_dma_update_tx_ch_config(dma_tx_cfg
);
155 ux500_musb_device
.dev
.parent
= parent
;
157 platform_device_register(&ux500_musb_device
);