diff options
Diffstat (limited to 'drivers/crypto/ccree/cc_driver.c')
| -rw-r--r-- | drivers/crypto/ccree/cc_driver.c | 36 |
1 files changed, 29 insertions, 7 deletions
diff --git a/drivers/crypto/ccree/cc_driver.c b/drivers/crypto/ccree/cc_driver.c index 89ce013ae093..bd974fef05e4 100644 --- a/drivers/crypto/ccree/cc_driver.c +++ b/drivers/crypto/ccree/cc_driver.c @@ -168,14 +168,14 @@ int init_cc_regs(struct cc_drvdata *drvdata, bool is_probe) val = cc_ioread(drvdata, CC_REG(AXIM_CACHE_PARAMS)); if (is_probe) - dev_info(dev, "Cache params previous: 0x%08X\n", val); + dev_dbg(dev, "Cache params previous: 0x%08X\n", val); cc_iowrite(drvdata, CC_REG(AXIM_CACHE_PARAMS), cache_params); val = cc_ioread(drvdata, CC_REG(AXIM_CACHE_PARAMS)); if (is_probe) - dev_info(dev, "Cache params current: 0x%08X (expect: 0x%08X)\n", - val, cache_params); + dev_dbg(dev, "Cache params current: 0x%08X (expect: 0x%08X)\n", + val, cache_params); return 0; } @@ -190,6 +190,7 @@ static int init_cc_resources(struct platform_device *plat_dev) u64 dma_mask; const struct cc_hw_data *hw_rev; const struct of_device_id *dev_id; + struct clk *clk; int rc = 0; new_drvdata = devm_kzalloc(dev, sizeof(*new_drvdata), GFP_KERNEL); @@ -207,15 +208,36 @@ static int init_cc_resources(struct platform_device *plat_dev) if (hw_rev->rev >= CC_HW_REV_712) { new_drvdata->hash_len_sz = HASH_LEN_SIZE_712; new_drvdata->axim_mon_offset = CC_REG(AXIM_MON_COMP); + new_drvdata->sig_offset = CC_REG(HOST_SIGNATURE_712); + new_drvdata->ver_offset = CC_REG(HOST_VERSION_712); } else { new_drvdata->hash_len_sz = HASH_LEN_SIZE_630; new_drvdata->axim_mon_offset = CC_REG(AXIM_MON_COMP8); + new_drvdata->sig_offset = CC_REG(HOST_SIGNATURE_630); + new_drvdata->ver_offset = CC_REG(HOST_VERSION_630); } platform_set_drvdata(plat_dev, new_drvdata); new_drvdata->plat_dev = plat_dev; - new_drvdata->clk = of_clk_get(np, 0); + clk = devm_clk_get(dev, NULL); + if (IS_ERR(clk)) + switch (PTR_ERR(clk)) { + /* Clock is optional so this might be fine */ + case -ENOENT: + break; + + /* Clock not available, let's try again soon */ + case -EPROBE_DEFER: + return -EPROBE_DEFER; + + default: + dev_err(dev, "Error getting clock: %ld\n", + PTR_ERR(clk)); + return PTR_ERR(clk); + } + new_drvdata->clk = clk; + new_drvdata->coherent = of_dma_is_coherent(np); /* Get device resources */ @@ -265,7 +287,7 @@ static int init_cc_resources(struct platform_device *plat_dev) } if (rc) { - dev_err(dev, "Failed in dma_set_mask, mask=%pad\n", &dma_mask); + dev_err(dev, "Failed in dma_set_mask, mask=%llx\n", dma_mask); return rc; } @@ -276,7 +298,7 @@ static int init_cc_resources(struct platform_device *plat_dev) } /* Verify correct mapping */ - signature_val = cc_ioread(new_drvdata, CC_REG(HOST_SIGNATURE)); + signature_val = cc_ioread(new_drvdata, new_drvdata->sig_offset); if (signature_val != hw_rev->sig) { dev_err(dev, "Invalid CC signature: SIGNATURE=0x%08X != expected=0x%08X\n", signature_val, hw_rev->sig); @@ -287,7 +309,7 @@ static int init_cc_resources(struct platform_device *plat_dev) /* Display HW versions */ dev_info(dev, "ARM CryptoCell %s Driver: HW version 0x%08X, Driver version %s\n", - hw_rev->name, cc_ioread(new_drvdata, CC_REG(HOST_VERSION)), + hw_rev->name, cc_ioread(new_drvdata, new_drvdata->ver_offset), DRV_MODULE_VERSION); rc = init_cc_regs(new_drvdata, true); |