From 46373beb9dddd1f2b43466e2dd2c0d480e27b285 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Thu, 6 Oct 2011 17:41:33 +0200 Subject: [PATCH] ARM: at91: at91sam9g45: add trng clock and platform device For the new hw_random driver. Signed-off-by: Peter Korsgaard Signed-off-by: Nicolas Ferre --- arch/arm/mach-at91/at91sam9g45.c | 7 ++++++ arch/arm/mach-at91/at91sam9g45_devices.c | 29 ++++++++++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c index 753df6323bfb..e47570f7633f 100644 --- a/arch/arm/mach-at91/at91sam9g45.c +++ b/arch/arm/mach-at91/at91sam9g45.c @@ -53,6 +53,11 @@ static struct clk pioDE_clk = { .pmc_mask = 1 << AT91SAM9G45_ID_PIODE, .type = CLK_TYPE_PERIPHERAL, }; +static struct clk trng_clk = { + .name = "trng_clk", + .pmc_mask = 1 << AT91SAM9G45_ID_TRNG, + .type = CLK_TYPE_PERIPHERAL, +}; static struct clk usart0_clk = { .name = "usart0_clk", .pmc_mask = 1 << AT91SAM9G45_ID_US0, @@ -176,6 +181,7 @@ static struct clk *periph_clocks[] __initdata = { &pioB_clk, &pioC_clk, &pioDE_clk, + &trng_clk, &usart0_clk, &usart1_clk, &usart2_clk, @@ -215,6 +221,7 @@ static struct clk_lookup periph_clocks_lookups[] = { CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tcb0_clk), CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk), CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk), + CLKDEV_CON_DEV_ID(NULL, "atmel-trng", &trng_clk), /* fake hclk clock */ CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &uhphs_clk), }; diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c index ffd655bbe50f..3d0957fc8b81 100644 --- a/arch/arm/mach-at91/at91sam9g45_devices.c +++ b/arch/arm/mach-at91/at91sam9g45_devices.c @@ -1100,6 +1100,34 @@ static void __init at91_add_device_rtt(void) } +/* -------------------------------------------------------------------- + * TRNG + * -------------------------------------------------------------------- */ + +#if defined(CONFIG_HW_RANDOM_ATMEL) || defined(CONFIG_HW_RANDOM_ATMEL_MODULE) +static struct resource trng_resources[] = { + { + .start = AT91SAM9G45_BASE_TRNG, + .end = AT91SAM9G45_BASE_TRNG + SZ_16K - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device at91sam9g45_trng_device = { + .name = "atmel-trng", + .id = -1, + .resource = trng_resources, + .num_resources = ARRAY_SIZE(trng_resources), +}; + +static void __init at91_add_device_trng(void) +{ + platform_device_register(&at91sam9g45_trng_device); +} +#else +static void __init at91_add_device_trng(void) {} +#endif + /* -------------------------------------------------------------------- * Watchdog * -------------------------------------------------------------------- */ @@ -1589,6 +1617,7 @@ static int __init at91_add_standard_devices(void) at91_add_device_hdmac(); at91_add_device_rtc(); at91_add_device_rtt(); + at91_add_device_trng(); at91_add_device_watchdog(); at91_add_device_tc(); return 0; -- 2.39.5