Commit 9368aa6a680f150755a233be9f97956bba5a915e
1 parent
5b5226a8e6
Exists in
v2017.01-smarct4x
and in
30 other branches
arm: socfpga: mcvevk: 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>
Showing 4 changed files with 26 additions and 5 deletions Side-by-side Diff
arch/arm/dts/socfpga_cyclone5_mcvevk.dts
board/denx/mcvevk/socfpga.c
| ... | ... | @@ -5,12 +5,12 @@ |
| 5 | 5 | */ |
| 6 | 6 | |
| 7 | 7 | #include <common.h> |
| 8 | +#include <errno.h> | |
| 8 | 9 | #include <asm/arch/reset_manager.h> |
| 9 | 10 | #include <asm/io.h> |
| 10 | 11 | |
| 11 | 12 | #include <usb.h> |
| 12 | 13 | #include <usb/dwc2_udc.h> |
| 13 | -#include <usb_mass_storage.h> | |
| 14 | 14 | |
| 15 | 15 | DECLARE_GLOBAL_DATA_PTR; |
| 16 | 16 | |
| 17 | 17 | |
| ... | ... | @@ -29,12 +29,29 @@ |
| 29 | 29 | |
| 30 | 30 | #ifdef CONFIG_USB_GADGET |
| 31 | 31 | struct dwc2_plat_otg_data socfpga_otg_data = { |
| 32 | - .regs_otg = CONFIG_USB_DWC2_REG_ADDR, | |
| 33 | 32 | .usb_gusbcfg = 0x1417, |
| 34 | 33 | }; |
| 35 | 34 | |
| 36 | 35 | int board_usb_init(int index, enum usb_init_type init) |
| 37 | 36 | { |
| 37 | + int node[2], count; | |
| 38 | + fdt_addr_t addr; | |
| 39 | + | |
| 40 | + count = fdtdec_find_aliases_for_id(gd->fdt_blob, "udc", | |
| 41 | + COMPAT_ALTERA_SOCFPGA_DWC2USB, | |
| 42 | + node, 2); | |
| 43 | + if (count <= 0) /* No controller found. */ | |
| 44 | + return 0; | |
| 45 | + | |
| 46 | + addr = fdtdec_get_addr(gd->fdt_blob, node[0], "reg"); | |
| 47 | + if (addr == FDT_ADDR_T_NONE) { | |
| 48 | + printf("UDC Controller has no 'reg' property!\n"); | |
| 49 | + return -EINVAL; | |
| 50 | + } | |
| 51 | + | |
| 52 | + /* Patch the address from OF into the controller pdata. */ | |
| 53 | + socfpga_otg_data.regs_otg = addr; | |
| 54 | + | |
| 38 | 55 | return dwc2_udc_probe(&socfpga_otg_data); |
| 39 | 56 | } |
| 40 | 57 |
configs/socfpga_mcvevk_defconfig
include/configs/socfpga_mcvevk.h