diff options
| author | Marek Vasut <marex@denx.de> | 2015-12-05 19:24:22 +0100 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2015-12-20 03:36:51 +0100 |
| commit | b5a5d2bd967781818ab1eadcd3ce779d01676e2e (patch) | |
| tree | 8c657bec2877ff78a2df03625ee583f79d172dd0 /board | |
| parent | 225217da2804d1c61725e2974262bd2f27882cd7 (diff) | |
arm: socfpga: socrates: Probe DWC2 UDC from OF instead of hard-coded data
This patch adds the necessary OF alias for the UDC node, which let's
the code locate the DWC2 UDC base address in OF instead of hard-coding
it into the U-Boot binary. The code is adjusted to use the address from
OF instead of the hard-coded one. Finally, the hard-coded address is
removed and USB DM support is enabled.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Lukasz Majewski <l.majewski@majess.pl>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/ebv/socrates/socfpga.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/board/ebv/socrates/socfpga.c b/board/ebv/socrates/socfpga.c index ccb1b4b063e..449f3b5d501 100644 --- a/board/ebv/socrates/socfpga.c +++ b/board/ebv/socrates/socfpga.c @@ -5,12 +5,12 @@ */ #include <common.h> +#include <errno.h> #include <asm/arch/reset_manager.h> #include <asm/io.h> #include <usb.h> #include <usb/dwc2_udc.h> -#include <usb_mass_storage.h> DECLARE_GLOBAL_DATA_PTR; @@ -29,12 +29,29 @@ int board_init(void) #ifdef CONFIG_USB_GADGET struct dwc2_plat_otg_data socfpga_otg_data = { - .regs_otg = CONFIG_USB_DWC2_REG_ADDR, .usb_gusbcfg = 0x1417, }; int board_usb_init(int index, enum usb_init_type init) { + int node[2], count; + fdt_addr_t addr; + + count = fdtdec_find_aliases_for_id(gd->fdt_blob, "udc", + COMPAT_ALTERA_SOCFPGA_DWC2USB, + node, 2); + if (count <= 0) /* No controller found. */ + return 0; + + addr = fdtdec_get_addr(gd->fdt_blob, node[0], "reg"); + if (addr == FDT_ADDR_T_NONE) { + printf("UDC Controller has no 'reg' property!\n"); + return -EINVAL; + } + + /* Patch the address from OF into the controller pdata. */ + socfpga_otg_data.regs_otg = addr; + return dwc2_udc_probe(&socfpga_otg_data); } |