hwrng: iproc-rng200 - Add support for BCM7278

BCM7278 features a RNG200 hardware random number generator block, add
support for this chip by matching the chip-specific compatible string
and extending the Kconfig dependencies to allow building on ARCH_BRCMSTB
(base platform for 7278).

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 95a031e9eced07ce3566387054c00610a9825ffe..f6e3e5abc117fa4be755d91c47d0acd1d026bc8d 100644 (file)
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -100,12 +100,12 @@ config HW_RANDOM_BCM2835
          If unsure, say Y.
 
 config HW_RANDOM_IPROC_RNG200
-       tristate "Broadcom iProc RNG200 support"
-       depends on ARCH_BCM_IPROC
+       tristate "Broadcom iProc/STB RNG200 support"
+       depends on ARCH_BCM_IPROC || ARCH_BRCMSTB
        default HW_RANDOM
        ---help---
          This driver provides kernel-side support for the RNG200
-         hardware found on the Broadcom iProc SoCs.
+         hardware found on the Broadcom iProc and STB SoCs.
 
          To compile this driver as a module, choose M here: the
          module will be called iproc-rng200

diff --git a/drivers/char/hw_random/iproc-rng200.c b/drivers/char/hw_random/iproc-rng200.c
index 3eaf7cb96d360e0987c7b05ab82fff7499122bbd..8b5a20b3529300f8bf4be914051ffe22c4e8c3c7 100644 (file)
--- a/drivers/char/hw_random/iproc-rng200.c
+++ b/drivers/char/hw_random/iproc-rng200.c
@@ -220,6 +220,7 @@ static int iproc_rng200_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id iproc_rng200_of_match[] = {
+       { .compatible = "brcm,bcm7278-rng200", },
        { .compatible = "brcm,iproc-rng200", },
        {},
 };