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author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-07-02 15:36:20 +1000 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-07-02 15:36:20 +1000 |
commit | 1d880992fd8c8457a2d990ac6622cfd58fb1b261 (patch) | |
tree | c4c843b12e96b5612c315db5a23c5da1a900618c /core/platform.c | |
download | skiboot-1d880992fd8c8457a2d990ac6622cfd58fb1b261.zip skiboot-1d880992fd8c8457a2d990ac6622cfd58fb1b261.tar.gz skiboot-1d880992fd8c8457a2d990ac6622cfd58fb1b261.tar.bz2 |
Initial commit of Open Source release
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'core/platform.c')
-rw-r--r-- | core/platform.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/core/platform.c b/core/platform.c new file mode 100644 index 0000000..e54b334 --- /dev/null +++ b/core/platform.c @@ -0,0 +1,78 @@ +/* Copyright 2013-2014 IBM Corp. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + * implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + + +#include <skiboot.h> +#include <opal.h> +#include <console.h> + +/* + * Various wrappers for platform functions + */ +static int64_t opal_cec_power_down(uint64_t request) +{ + printf("OPAL: Shutdown request type 0x%llx...\n", request); + + if (platform.cec_power_down) + return platform.cec_power_down(request); + + return OPAL_SUCCESS; +} +opal_call(OPAL_CEC_POWER_DOWN, opal_cec_power_down, 1); + +static int64_t opal_cec_reboot(void) +{ + printf("OPAL: Reboot request...\n"); + +#ifdef ENABLE_FAST_RESET + /* Try a fast reset first */ + fast_reset(); +#endif + if (platform.cec_reboot) + return platform.cec_reboot(); + + return OPAL_SUCCESS; +} +opal_call(OPAL_CEC_REBOOT, opal_cec_reboot, 0); + +static void generic_platform_init(void) +{ + /* Do we want to unconditionally enable it ? */ + if (dummy_console_enabled()) + dummy_console_add_nodes(); +} + +static struct platform generic_platform = { + .name = "generic", + .init = generic_platform_init, +}; + +void probe_platform(void) +{ + struct platform *platforms = &__platforms_start; + unsigned int i; + + platform = generic_platform; + + for (i = 0; &platforms[i] < &__platforms_end; i++) { + if (platforms[i].probe && platforms[i].probe()) { + platform = platforms[i]; + break; + } + } + + printf("PLAT: Detected %s platform\n", platform.name); +} |