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Commit 923e3819 authored by Atsushi Nemoto's avatar Atsushi Nemoto Committed by Ralf Baechle
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MIPS: TXx9: Add TX4939 RNG support 



Add platform support for RNG of TX4939 SoC.

Signed-off-by: default avatarAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 049a947c

arch/mips/include/asm/txx9/tx4939.h

+3 −0
Original line number Diff line number Diff line
@@ -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 */

arch/mips/txx9/generic/setup_tx4939.c

+17 −0
Original line number Diff line number Diff line
@@ -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;

arch/mips/txx9/rbtx4939/setup.c

+1 −0
Original line number Diff line number Diff line
@@ -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)