Lines Matching full:ss
3 * sun4i-ss-core.c - hardware cryptographic accelerator for Allwinner A20 SoC
7 * Core file which registers crypto algorithms supported by the SS.
25 #include "sun4i-ss.h"
51 .cra_driver_name = "md5-sun4i-ss",
78 .cra_driver_name = "sha1-sun4i-ss",
100 .cra_driver_name = "cbc-aes-sun4i-ss",
121 .cra_driver_name = "ecb-aes-sun4i-ss",
143 .cra_driver_name = "cbc-des-sun4i-ss",
164 .cra_driver_name = "ecb-des-sun4i-ss",
186 .cra_driver_name = "cbc-des3-sun4i-ss",
207 .cra_driver_name = "ecb-des3-sun4i-ss",
243 if (!ss_algs[i].ss) in sun4i_ss_debugfs_show()
277 struct sun4i_ss_ctx *ss = dev_get_drvdata(dev); in sun4i_ss_pm_suspend() local
279 reset_control_assert(ss->reset); in sun4i_ss_pm_suspend()
281 clk_disable_unprepare(ss->ssclk); in sun4i_ss_pm_suspend()
282 clk_disable_unprepare(ss->busclk); in sun4i_ss_pm_suspend()
288 struct sun4i_ss_ctx *ss = dev_get_drvdata(dev); in sun4i_ss_pm_resume() local
292 err = clk_prepare_enable(ss->busclk); in sun4i_ss_pm_resume()
294 dev_err(ss->dev, "Cannot prepare_enable busclk\n"); in sun4i_ss_pm_resume()
298 err = clk_prepare_enable(ss->ssclk); in sun4i_ss_pm_resume()
300 dev_err(ss->dev, "Cannot prepare_enable ssclk\n"); in sun4i_ss_pm_resume()
304 err = reset_control_deassert(ss->reset); in sun4i_ss_pm_resume()
306 dev_err(ss->dev, "Cannot deassert reset control\n"); in sun4i_ss_pm_resume()
325 static int sun4i_ss_pm_init(struct sun4i_ss_ctx *ss) in sun4i_ss_pm_init() argument
329 pm_runtime_use_autosuspend(ss->dev); in sun4i_ss_pm_init()
330 pm_runtime_set_autosuspend_delay(ss->dev, 2000); in sun4i_ss_pm_init()
332 err = pm_runtime_set_suspended(ss->dev); in sun4i_ss_pm_init()
335 pm_runtime_enable(ss->dev); in sun4i_ss_pm_init()
339 static void sun4i_ss_pm_exit(struct sun4i_ss_ctx *ss) in sun4i_ss_pm_exit() argument
341 pm_runtime_disable(ss->dev); in sun4i_ss_pm_exit()
351 struct sun4i_ss_ctx *ss; in sun4i_ss_probe() local
356 ss = devm_kzalloc(&pdev->dev, sizeof(*ss), GFP_KERNEL); in sun4i_ss_probe()
357 if (!ss) in sun4i_ss_probe()
360 ss->base = devm_platform_ioremap_resource(pdev, 0); in sun4i_ss_probe()
361 if (IS_ERR(ss->base)) { in sun4i_ss_probe()
363 return PTR_ERR(ss->base); in sun4i_ss_probe()
366 ss->variant = of_device_get_match_data(&pdev->dev); in sun4i_ss_probe()
367 if (!ss->variant) { in sun4i_ss_probe()
372 ss->ssclk = devm_clk_get(&pdev->dev, "mod"); in sun4i_ss_probe()
373 if (IS_ERR(ss->ssclk)) { in sun4i_ss_probe()
374 err = PTR_ERR(ss->ssclk); in sun4i_ss_probe()
375 dev_err(&pdev->dev, "Cannot get SS clock err=%d\n", err); in sun4i_ss_probe()
378 dev_dbg(&pdev->dev, "clock ss acquired\n"); in sun4i_ss_probe()
380 ss->busclk = devm_clk_get(&pdev->dev, "ahb"); in sun4i_ss_probe()
381 if (IS_ERR(ss->busclk)) { in sun4i_ss_probe()
382 err = PTR_ERR(ss->busclk); in sun4i_ss_probe()
383 dev_err(&pdev->dev, "Cannot get AHB SS clock err=%d\n", err); in sun4i_ss_probe()
388 ss->reset = devm_reset_control_get_optional(&pdev->dev, "ahb"); in sun4i_ss_probe()
389 if (IS_ERR(ss->reset)) in sun4i_ss_probe()
390 return PTR_ERR(ss->reset); in sun4i_ss_probe()
391 if (!ss->reset) in sun4i_ss_probe()
398 err = clk_set_rate(ss->ssclk, cr_mod); in sun4i_ss_probe()
409 cr = clk_get_rate(ss->busclk); in sun4i_ss_probe()
417 cr = clk_get_rate(ss->ssclk); in sun4i_ss_probe()
420 dev_warn(&pdev->dev, "Clock ss %lu (%lu MHz) (must be <= %lu)\n", in sun4i_ss_probe()
423 dev_dbg(&pdev->dev, "Clock ss %lu (%lu MHz) (must be <= %lu)\n", in sun4i_ss_probe()
426 dev_warn(&pdev->dev, "Clock ss is at %lu (%lu MHz) (must be <= %lu)\n", in sun4i_ss_probe()
429 ss->dev = &pdev->dev; in sun4i_ss_probe()
430 platform_set_drvdata(pdev, ss); in sun4i_ss_probe()
432 spin_lock_init(&ss->slock); in sun4i_ss_probe()
434 err = sun4i_ss_pm_init(ss); in sun4i_ss_probe()
441 * Since the A80 seems to have an other version of SS in sun4i_ss_probe()
445 err = pm_runtime_resume_and_get(ss->dev); in sun4i_ss_probe()
449 writel(SS_ENABLED, ss->base + SS_CTL); in sun4i_ss_probe()
450 v = readl(ss->base + SS_CTL); in sun4i_ss_probe()
454 writel(0, ss->base + SS_CTL); in sun4i_ss_probe()
456 pm_runtime_put_sync(ss->dev); in sun4i_ss_probe()
459 ss_algs[i].ss = ss; in sun4i_ss_probe()
464 dev_err(ss->dev, "Fail to register %s\n", in sun4i_ss_probe()
472 dev_err(ss->dev, "Fail to register %s\n", in sun4i_ss_probe()
480 dev_err(ss->dev, "Fail to register %s\n", in sun4i_ss_probe()
488 ss->dbgfs_dir = debugfs_create_dir("sun4i-ss", NULL); in sun4i_ss_probe()
489 ss->dbgfs_stats = debugfs_create_file("stats", 0444, ss->dbgfs_dir, ss, in sun4i_ss_probe()
509 sun4i_ss_pm_exit(ss); in sun4i_ss_probe()
516 struct sun4i_ss_ctx *ss = platform_get_drvdata(pdev); in sun4i_ss_remove() local
532 sun4i_ss_pm_exit(ss); in sun4i_ss_remove()
551 .name = "sun4i-ss",
559 MODULE_ALIAS("platform:sun4i-ss");