[PATCH] TXx9: Add TX4939 RNG support (v2)

[PATCH] TXx9: Add TX4939 RNG support (v2)

[Atsushi Nemoto]

Add platform support for RNG of TX4939 SoC.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
---
Changes since v1:
* Move TX4939_RNG_REG definition to tx4939.h

 arch/mips/include/asm/txx9/tx4939.h   |    3 +++
 arch/mips/txx9/generic/setup_tx4939.c |   17 +++++++++++++++++
 arch/mips/txx9/rbtx4939/setup.c       |    1 +
 3 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/arch/mips/include/asm/txx9/tx4939.h b/arch/mips/include/asm/txx9/tx4939.h
index 050364d..d4f342c 100644
--- a/arch/mips/include/asm/txx9/tx4939.h
+++ b/arch/mips/include/asm/txx9/tx4939.h
@@ -45,6 +45,8 @@
 #define TX4939_RTC_REG		(TX4939_REG_BASE + 0xfb00)
 #define TX4939_CIR_REG		(TX4939_REG_BASE + 0xfc00)
 
+#define TX4939_RNG_REG		(TX4939_CRYPTO_REG + 0xb0)
+
 struct tx4939_le_reg {
 	__u32 r;
 	__u32 unused;
@@ -547,5 +549,6 @@ 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..3dc19f4 100644
--- a/arch/mips/txx9/generic/setup_tx4939.c
+++ b/arch/mips/txx9/generic/setup_tx4939.c
@@ -500,6 +500,23 @@ void __init tx4939_sramc_init(void)
 		txx9_sramc_init(&tx4939_sram_resource);
 }
 
+void __init tx4939_rng_init(void)
+{
+	static struct resource res = {
+		.start = TX4939_RNG_REG & 0xfffffffffULL,
+		.end = (TX4939_RNG_REG & 0xfffffffffULL) + 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

Re: [PATCH] TXx9: Add TX4939 RNG support (v2)

[Herbert Xu]

On Tue, Jun 02, 2009 at 11:54:22PM +0900, Atsushi Nemoto wrote:
> Add platform support for RNG of TX4939 SoC.
> 
> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>

Aha, I knew I should have left Ralf take the patch, and this is
the reason :)

Rather than having the patches split between the two of us, I'll
back out the RNG patch from my tree so both of them can go through
Ralf's MIPS tree.

Thanks,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

Re: [PATCH] TXx9: Add TX4939 RNG support (v2)

[Ralf Baechle]

On Wed, Jun 03, 2009 at 07:44:54PM +1000, Herbert Xu wrote:
> From: Herbert Xu <herbert@gondor.apana.org.au>
> Date: Wed, 3 Jun 2009 19:44:54 +1000
> To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
> Cc: linux-mips@linux-mips.org, ralf@linux-mips.org, mpm@selenic.com,
> 	linux-kernel@vger.kernel.org
> Subject: Re: [PATCH] TXx9: Add TX4939 RNG support (v2)
> Content-Type: text/plain; charset=us-ascii
> 
> On Tue, Jun 02, 2009 at 11:54:22PM +0900, Atsushi Nemoto wrote:
> > Add platform support for RNG of TX4939 SoC.
> > 
> > Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
> 
> Aha, I knew I should have left Ralf take the patch, and this is
> the reason :)
> 
> Rather than having the patches split between the two of us, I'll
> back out the RNG patch from my tree so both of them can go through
> Ralf's MIPS tree.

Ah, got this email just in time before actually dropping the patch as I
said in the other mail so I won't drop it.

Confusion`R`Us ;-)

  Ralf

Re: [PATCH] TXx9: Add TX4939 RNG support (v2)

[Herbert Xu]

On Wed, Jun 03, 2009 at 11:03:35AM +0100, Ralf Baechle wrote:
> 
> Ah, got this email just in time before actually dropping the patch as I
> said in the other mail so I won't drop it.
> 
> Confusion`R`Us ;-)

Heh, I should stop replying emails too quickly.  Let's make this
the final agreement.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt