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drivers: entropy: mcux_trng: get the base address from the device tree

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Instead of getting the base address from the MCUX headers, use the base
address from the device tree.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2019-01-10 21:42:49 +01:00 committed by Kumar Gala
parent 2cf134f797
commit 2ff5d641f2
1 changed files with 13 additions and 3 deletions
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16
drivers/entropy/entropy_mcux_trng.c
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@ -11,14 +11,19 @@
#include "fsl_trng.h"
struct mcux_entropy_config {
TRNG_Type *base;
};
static int entropy_mcux_trng_get_entropy(struct device *dev, u8_t *buffer,
u16_t length)
{
const struct mcux_entropy_config *config = dev->config->config_info;
status_t status;
ARG_UNUSED(dev);
status = TRNG_GetRandomData(TRNG0, buffer, length);
status = TRNG_GetRandomData(config->base, buffer, length);
__ASSERT_NO_MSG(!status);
return 0;
@ -28,15 +33,20 @@ static const struct entropy_driver_api entropy_mcux_trng_api_funcs = {
.get_entropy = entropy_mcux_trng_get_entropy
};
static struct mcux_entropy_config entropy_mcux_config = {
.base = (TRNG_Type *)DT_ENTROPY_MCUX_TRNG_BASE_ADDRESS
};
static int entropy_mcux_trng_init(struct device *);
DEVICE_AND_API_INIT(entropy_mcux_trng, CONFIG_ENTROPY_NAME,
entropy_mcux_trng_init, NULL, NULL,
entropy_mcux_trng_init, NULL, &entropy_mcux_config,
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE,
&entropy_mcux_trng_api_funcs);
static int entropy_mcux_trng_init(struct device *dev)
{
const struct mcux_entropy_config *config = dev->config->config_info;
trng_config_t conf;
status_t status;
@ -45,7 +55,7 @@ static int entropy_mcux_trng_init(struct device *dev)
status = TRNG_GetDefaultConfig(&conf);
__ASSERT_NO_MSG(!status);
status = TRNG_Init(TRNG0, &conf);
status = TRNG_Init(config->base, &conf);
__ASSERT_NO_MSG(!status);
return 0;