From: Arkadiusz Wlodarczyk a.wlodarczyk@samsung.com
This commit enables support for USB mass storage composite function. It defines platform code and enables it at config file.
Signed-off-by: Arkadiusz Wlodarczyk a.wlodarczyk@samsung.com Signed-off-by: Kyungmin Park kyungmin.park@samsung.com Tested-by: Arkadiusz Wlodarczyk a.wlodarczyk@samsung.com Cc: Minkyu Kang mk7.kang@samsung.com --- board/samsung/goni/goni.c | 68 ++++++++++++++++++++++++++++++++++++++++++++ include/configs/s5p_goni.h | 5 ++++ 2 files changed, 73 insertions(+)
diff --git a/board/samsung/goni/goni.c b/board/samsung/goni/goni.c index 3c53106..a09daca 100644 --- a/board/samsung/goni/goni.c +++ b/board/samsung/goni/goni.c @@ -29,6 +29,7 @@ #include <usb/s3c_udc.h> #include <asm/arch/cpu.h> #include <power/max8998_pmic.h> +#include <usb_mass_storage.h> DECLARE_GLOBAL_DATA_PTR;
static struct s5pc110_gpio *s5pc110_gpio; @@ -163,3 +164,70 @@ void board_usb_init(void) }
#endif + +#ifdef CONFIG_USB_GADGET_MASS_STORAGE +static int ums_read_sector(struct ums_device *ums_dev, + ulong start, lbaint_t blkcnt, void *buf) +{ + if (ums_dev->mmc->block_dev.block_read(ums_dev->dev_num, + start + ums_dev->offset, blkcnt, buf) != blkcnt) + return -1; + + return 0; +} + +static int ums_write_sector(struct ums_device *ums_dev, + ulong start, lbaint_t blkcnt, const void *buf) +{ + if (ums_dev->mmc->block_dev.block_write(ums_dev->dev_num, + start + ums_dev->offset, blkcnt, buf) != blkcnt) + return -1; + + return 0; +} + +static void ums_get_capacity(struct ums_device *ums_dev, + long long int *capacity) +{ + long long int tmp_capacity; + + tmp_capacity = (long long int) ((ums_dev->offset + ums_dev->part_size) + * SECTOR_SIZE); + *capacity = ums_dev->mmc->capacity - tmp_capacity; +} + +static struct ums_board_info ums_board = { + .read_sector = ums_read_sector, + .write_sector = ums_write_sector, + .get_capacity = ums_get_capacity, + .name = "GONI UMS disk", + .ums_dev = { + .mmc = NULL, + .dev_num = 0, + .offset = 0, + .part_size = 0. + }, +}; + +struct ums_board_info *board_ums_init(unsigned int dev_num, unsigned int offset, + unsigned int part_size) +{ + struct mmc *mmc; + + mmc = find_mmc_device(dev_num); + /* mmc initialization is necessary prior to the ums command usage + * due to fact that on goni target environment is read from oneNand + * memory, so the mmc remains uninitialized whenu-boot prompt appears + * */ + if (!mmc || mmc_init(mmc)) + return NULL; + + ums_board.ums_dev.mmc = mmc; + ums_board.ums_dev.dev_num = dev_num; + ums_board.ums_dev.offset = offset; + ums_board.ums_dev.part_size = part_size; + + return &ums_board; +} + +#endif diff --git a/include/configs/s5p_goni.h b/include/configs/s5p_goni.h index e8f2639..1cfbb88 100644 --- a/include/configs/s5p_goni.h +++ b/include/configs/s5p_goni.h @@ -269,4 +269,9 @@ #define CONFIG_USB_GADGET_DUALSPEED #define CONFIG_USB_GADGET_VBUS_DRAW 2
+#define CONFIG_CMD_USB_MASS_STORAGE +#if defined(CONFIG_CMD_USB_MASS_STORAGE) +#define CONFIG_USB_GADGET_MASS_STORAGE +#endif + #endif /* __CONFIG_H */