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MIPS: TXx9: Add TX4939 RNG support

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Add platform support for RNG of TX4939 SoC.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Atsushi Nemoto 2009-06-02 23:54:22 +09:00 committed by Ralf Baechle
parent 049a947c61
commit 923e381900
3 changed files with 21 additions and 0 deletions
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3
arch/mips/include/asm/txx9/tx4939.h
View file

@ -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 */

17
arch/mips/txx9/generic/setup_tx4939.c
View file

@ -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;

1
arch/mips/txx9/rbtx4939/setup.c
View file

@ -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)