summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-at91
diff options
context:
space:
mode:
authorPeter Korsgaard <jacmet@sunsite.dk>2011-10-06 17:41:33 +0200
committerNicolas Ferre <nicolas.ferre@atmel.com>2011-10-10 12:42:41 +0200
commit237a62a1436eca94497476a9138baf795c16c97c (patch)
treec348175dbdedfbe976a978beef7b1ccb001356f5 /arch/arm/mach-at91
parent976d167615b64e14bc1491ca51d424e2ba9a5e84 (diff)
downloadlinux-237a62a1436eca94497476a9138baf795c16c97c.tar.bz2
ARM: at91: at91sam9g45: add trng clock and platform device
For the new hw_random driver. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'arch/arm/mach-at91')
-rw-r--r--arch/arm/mach-at91/at91sam9g45.c7
-rw-r--r--arch/arm/mach-at91/at91sam9g45_devices.c29
2 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index e04c5fb6f1ee..06910598819a 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),
};
static struct clk_lookup usart_clocks_lookups[] = {
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index 600bffb01edb..ee1efa4f8807 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -1095,6 +1095,34 @@ 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
* -------------------------------------------------------------------- */
@@ -1583,6 +1611,7 @@ 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;