Add platform support for RNG of TX4939 SoC.
Signed-off-by: Atsushi Nemoto <anemo@xxxxxxxxxxxxx>
---
arch/mips/include/asm/txx9/tx4939.h | 1 +
arch/mips/txx9/generic/setup_tx4939.c | 18 ++++++++++++++++++
arch/mips/txx9/rbtx4939/setup.c | 1 +
3 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/arch/mips/include/asm/txx9/tx4939.h b/arch/mips/include/asm/txx9/tx4939.h
index 050364d..3451499 100644
--- a/arch/mips/include/asm/txx9/tx4939.h
+++ b/arch/mips/include/asm/txx9/tx4939.h
@@ -547,5 +547,6 @@ void tx4939_ndfmc_init(unsigned int hold, unsigned int spw,
void tx4939_dmac_init(int memcpy_chan0, int memcpy_chan1);
void tx4939_aclc_init(void);
void tx4939_sramc_init(void);
+void tx4939_rng_init(void);
#endif /* __ASM_TXX9_TX4939_H */
diff --git a/arch/mips/txx9/generic/setup_tx4939.c b/arch/mips/txx9/generic/setup_tx4939.c
index df13a89..4b7293c 100644
--- a/arch/mips/txx9/generic/setup_tx4939.c
+++ b/arch/mips/txx9/generic/setup_tx4939.c
@@ -500,6 +500,24 @@ void __init tx4939_sramc_init(void)
txx9_sramc_init(&tx4939_sram_resource);
}
+#define TX4939_RNG_REG ((TX4939_CRYPTO_REG & 0xfffffffffULL) + 0xb0)
+void __init tx4939_rng_init(void)
+{
+ static struct resource res = {
+ .start = TX4939_RNG_REG,
+ .end = TX4939_RNG_REG + 0x30 - 1,
+ .flags = IORESOURCE_MEM,
+ };
+ static struct platform_device pdev = {
+ .name = "tx4939-rng",
+ .id = -1,
+ .num_resources = 1,
+ .resource = &res,
+ };
+
+ platform_device_register(&pdev);
+}
+
static void __init tx4939_stop_unused_modules(void)
{
__u64 pcfg, rst = 0, ckd = 0;
diff --git a/arch/mips/txx9/rbtx4939/setup.c b/arch/mips/txx9/rbtx4939/setup.c
index b919696..c033ffe 100644
--- a/arch/mips/txx9/rbtx4939/setup.c
+++ b/arch/mips/txx9/rbtx4939/setup.c
@@ -502,6 +502,7 @@ static void __init rbtx4939_device_init(void)
tx4939_aclc_init();
platform_device_register_simple("txx9aclc-generic", -1, NULL, 0);
tx4939_sramc_init();
+ tx4939_rng_init();
}
static void __init rbtx4939_setup(void)
--
1.5.6.5
