diff options
Diffstat (limited to 'drivers/nvmem/stm32-romem.c')
| -rw-r--r-- | drivers/nvmem/stm32-romem.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/drivers/nvmem/stm32-romem.c b/drivers/nvmem/stm32-romem.c index 38d0bf557129..82879b1c9eb9 100644 --- a/drivers/nvmem/stm32-romem.c +++ b/drivers/nvmem/stm32-romem.c @@ -10,7 +10,9 @@ #include <linux/io.h> #include <linux/module.h> #include <linux/nvmem-provider.h> -#include <linux/of_device.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/property.h> #include <linux/tee_drv.h> #include "stm32-bsec-optee-ta.h" @@ -196,8 +198,7 @@ static int stm32_romem_probe(struct platform_device *pdev) if (!priv) return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - priv->base = devm_ioremap_resource(dev, res); + priv->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res); if (IS_ERR(priv->base)) return PTR_ERR(priv->base); @@ -208,11 +209,11 @@ static int stm32_romem_probe(struct platform_device *pdev) priv->cfg.priv = priv; priv->cfg.owner = THIS_MODULE; priv->cfg.type = NVMEM_TYPE_OTP; + priv->cfg.add_legacy_fixed_of_cells = true; priv->lower = 0; - cfg = (const struct stm32_romem_cfg *) - of_match_device(dev->driver->of_match_table, dev)->data; + cfg = device_get_match_data(dev); if (!cfg) { priv->cfg.read_only = true; priv->cfg.size = resource_size(res); @@ -268,6 +269,19 @@ static const struct stm32_romem_cfg stm32mp13_bsec_cfg = { .ta = true, }; +/* + * STM32MP25 BSEC OTP: 3 regions of 32-bits data words + * lower OTP (OTP0 to OTP127), bitwise (1-bit) programmable + * mid OTP (OTP128 to OTP255), bulk (32-bit) programmable + * upper OTP (OTP256 to OTP383), bulk (32-bit) programmable + * but no access to HWKEY and ECIES key: limited at OTP367 + */ +static const struct stm32_romem_cfg stm32mp25_bsec_cfg = { + .size = 368 * 4, + .lower = 127, + .ta = true, +}; + static const struct of_device_id stm32_romem_of_match[] __maybe_unused = { { .compatible = "st,stm32f4-otp", }, { .compatible = "st,stm32mp15-bsec", @@ -275,6 +289,9 @@ static const struct of_device_id stm32_romem_of_match[] __maybe_unused = { }, { .compatible = "st,stm32mp13-bsec", .data = (void *)&stm32mp13_bsec_cfg, + }, { + .compatible = "st,stm32mp25-bsec", + .data = (void *)&stm32mp25_bsec_cfg, }, { /* sentinel */ }, }; |