diff options
Diffstat (limited to 'drivers/crypto/ccree/cc_driver.c')
| -rw-r--r-- | drivers/crypto/ccree/cc_driver.c | 68 |
1 files changed, 55 insertions, 13 deletions
diff --git a/drivers/crypto/ccree/cc_driver.c b/drivers/crypto/ccree/cc_driver.c index 827e32923c60..89ce013ae093 100644 --- a/drivers/crypto/ccree/cc_driver.c +++ b/drivers/crypto/ccree/cc_driver.c @@ -35,6 +35,34 @@ bool cc_dump_bytes; module_param_named(dump_bytes, cc_dump_bytes, bool, 0600); MODULE_PARM_DESC(cc_dump_bytes, "Dump buffers to kernel log as debugging aid"); +struct cc_hw_data { + char *name; + enum cc_hw_rev rev; + u32 sig; +}; + +/* Hardware revisions defs. */ + +static const struct cc_hw_data cc712_hw = { + .name = "712", .rev = CC_HW_REV_712, .sig = 0xDCC71200U +}; + +static const struct cc_hw_data cc710_hw = { + .name = "710", .rev = CC_HW_REV_710, .sig = 0xDCC63200U +}; + +static const struct cc_hw_data cc630p_hw = { + .name = "630P", .rev = CC_HW_REV_630, .sig = 0xDCC63000U +}; + +static const struct of_device_id arm_ccree_dev_of_match[] = { + { .compatible = "arm,cryptocell-712-ree", .data = &cc712_hw }, + { .compatible = "arm,cryptocell-710-ree", .data = &cc710_hw }, + { .compatible = "arm,cryptocell-630p-ree", .data = &cc630p_hw }, + {} +}; +MODULE_DEVICE_TABLE(of, arm_ccree_dev_of_match); + void __dump_byte_array(const char *name, const u8 *buf, size_t len) { char prefix[64]; @@ -128,9 +156,12 @@ int init_cc_regs(struct cc_drvdata *drvdata, bool is_probe) cc_iowrite(drvdata, CC_REG(HOST_ICR), val); /* Unmask relevant interrupt cause */ - val = (unsigned int)(~(CC_COMP_IRQ_MASK | CC_AXI_ERR_IRQ_MASK | - CC_GPR0_IRQ_MASK)); - cc_iowrite(drvdata, CC_REG(HOST_IMR), val); + val = CC_COMP_IRQ_MASK | CC_AXI_ERR_IRQ_MASK; + + if (drvdata->hw_rev >= CC_HW_REV_712) + val |= CC_GPR0_IRQ_MASK; + + cc_iowrite(drvdata, CC_REG(HOST_IMR), ~val); cache_params = (drvdata->coherent ? CC_COHERENT_CACHE_PARAMS : 0x0); @@ -157,12 +188,30 @@ static int init_cc_resources(struct platform_device *plat_dev) struct device_node *np = dev->of_node; u32 signature_val; u64 dma_mask; + const struct cc_hw_data *hw_rev; + const struct of_device_id *dev_id; int rc = 0; new_drvdata = devm_kzalloc(dev, sizeof(*new_drvdata), GFP_KERNEL); if (!new_drvdata) return -ENOMEM; + dev_id = of_match_node(arm_ccree_dev_of_match, np); + if (!dev_id) + return -ENODEV; + + hw_rev = (struct cc_hw_data *)dev_id->data; + new_drvdata->hw_rev_name = hw_rev->name; + new_drvdata->hw_rev = hw_rev->rev; + + 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); + } else { + new_drvdata->hash_len_sz = HASH_LEN_SIZE_630; + new_drvdata->axim_mon_offset = CC_REG(AXIM_MON_COMP8); + } + platform_set_drvdata(plat_dev, new_drvdata); new_drvdata->plat_dev = plat_dev; @@ -228,9 +277,9 @@ static int init_cc_resources(struct platform_device *plat_dev) /* Verify correct mapping */ signature_val = cc_ioread(new_drvdata, CC_REG(HOST_SIGNATURE)); - if (signature_val != CC_DEV_SIGNATURE) { + if (signature_val != hw_rev->sig) { dev_err(dev, "Invalid CC signature: SIGNATURE=0x%08X != expected=0x%08X\n", - signature_val, (u32)CC_DEV_SIGNATURE); + signature_val, hw_rev->sig); rc = -EINVAL; goto post_clk_err; } @@ -238,8 +287,7 @@ 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", - CC_DEV_NAME_STR, - cc_ioread(new_drvdata, CC_REG(HOST_VERSION)), + hw_rev->name, cc_ioread(new_drvdata, CC_REG(HOST_VERSION)), DRV_MODULE_VERSION); rc = init_cc_regs(new_drvdata, true); @@ -430,12 +478,6 @@ static int ccree_remove(struct platform_device *plat_dev) return 0; } -static const struct of_device_id arm_ccree_dev_of_match[] = { - {.compatible = "arm,cryptocell-712-ree"}, - {} -}; -MODULE_DEVICE_TABLE(of, arm_ccree_dev_of_match); - static struct platform_driver ccree_driver = { .driver = { .name = "ccree", |