diff options
| author | Marek Vasut <marex@denx.de> | 2019-04-16 22:28:08 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2019-04-29 10:08:56 +0200 |
| commit | 72c347ced8c09f8a61452c884e992c444f555fe2 (patch) | |
| tree | 7cb994f0967066d7b5b265a7e5caca841d34340a /arch/arm/mach-socfpga/misc.c | |
| parent | ba2cfcee889db2de099c46a60090624edf202a81 (diff) | |
ARM: socfpga: Add support for selecting bridges in bridge command
Add optional "mask" argument to the SoCFPGA bridge command, to select
which bridges should be enabled/disabled. This allows the user to avoid
enabling bridges which are not connected into the FPGA fabric. Default
behavior is to enable/disable all bridges.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tien Fong Chee <tien.fong.chee@intel.com>
Diffstat (limited to 'arch/arm/mach-socfpga/misc.c')
| -rw-r--r-- | arch/arm/mach-socfpga/misc.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/arch/arm/mach-socfpga/misc.c b/arch/arm/mach-socfpga/misc.c index ec8339e045..e1ea8eb73e 100644 --- a/arch/arm/mach-socfpga/misc.c +++ b/arch/arm/mach-socfpga/misc.c @@ -126,17 +126,22 @@ int arch_cpu_init(void) #ifndef CONFIG_SPL_BUILD static int do_bridge(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { - if (argc != 2) + unsigned int mask = ~0; + + if (argc < 2 || argc > 3) return CMD_RET_USAGE; argv++; + if (argc == 3) + mask = simple_strtoul(argv[1], NULL, 16); + switch (*argv[0]) { case 'e': /* Enable */ - do_bridge_reset(1); + do_bridge_reset(1, mask); break; case 'd': /* Disable */ - do_bridge_reset(0); + do_bridge_reset(0, mask); break; default: return CMD_RET_USAGE; @@ -145,10 +150,10 @@ static int do_bridge(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return 0; } -U_BOOT_CMD(bridge, 2, 1, do_bridge, +U_BOOT_CMD(bridge, 3, 1, do_bridge, "SoCFPGA HPS FPGA bridge control", - "enable - Enable HPS-to-FPGA, FPGA-to-HPS, LWHPS-to-FPGA bridges\n" - "bridge disable - Enable HPS-to-FPGA, FPGA-to-HPS, LWHPS-to-FPGA bridges\n" + "enable [mask] - Enable HPS-to-FPGA, FPGA-to-HPS, LWHPS-to-FPGA bridges\n" + "bridge disable [mask] - Enable HPS-to-FPGA, FPGA-to-HPS, LWHPS-to-FPGA bridges\n" "" ); |