From: "Pali Rohár" <pali.rohar@gmail.com>
To: Matt Mackall <mpm@selenic.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Tony Lindgren <tony@atomide.com>,
Russell King <linux@arm.linux.org.uk>,
Joe Perches <joe@perches.com>,
Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org,
"Pali Rohár" <pali.rohar@gmail.com>
Subject: [PATCH v2 3/3] RX-51: Add support for OMAP3 ROM Random Number Generator
Date: Fri, 20 Sep 2013 15:25:07 +0200 [thread overview]
Message-ID: <1379683507-30793-4-git-send-email-pali.rohar@gmail.com> (raw)
In-Reply-To: <1379683507-30793-1-git-send-email-pali.rohar@gmail.com>
Adding this driver as platform device and only for RX-51 until somebody test if
it working also on other OMAP3 HS devices and until there will be generic ARM
way to deal with SMC calls.
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
---
arch/arm/mach-omap2/board-rx51-peripherals.c | 19 +++++++++++++++++++
arch/arm/mach-omap2/omap-secure.c | 11 +++++++++++
arch/arm/mach-omap2/omap-secure.h | 1 +
3 files changed, 31 insertions(+)
diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index c3270c0..497d260 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -57,6 +57,8 @@
#include "common-board-devices.h"
#include "gpmc.h"
#include "gpmc-onenand.h"
+#include "soc.h"
+#include "omap-secure.h"
#define SYSTEM_REV_B_USES_VAUX3 0x1699
#define SYSTEM_REV_S_USES_VAUX3 0x8
@@ -1289,6 +1291,22 @@ static void __init rx51_init_twl4030_hwmon(void)
platform_device_register(&madc_hwmon);
}
+static struct platform_device omap3_rom_rng_device = {
+ .name = "omap3-rom-rng",
+ .id = -1,
+ .dev = {
+ .platform_data = rx51_secure_rng_call,
+ },
+};
+
+static void __init rx51_init_omap3_rom_rng(void)
+{
+ if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
+ pr_info("RX-51: Registring OMAP3 HWRNG device\n");
+ platform_device_register(&omap3_rom_rng_device);
+ }
+}
+
void __init rx51_peripherals_init(void)
{
rx51_i2c_init();
@@ -1309,5 +1327,6 @@ void __init rx51_peripherals_init(void)
rx51_charger_init();
rx51_init_twl4030_hwmon();
+ rx51_init_omap3_rom_rng();
}
diff --git a/arch/arm/mach-omap2/omap-secure.c b/arch/arm/mach-omap2/omap-secure.c
index 146a7c4..5ac122e 100644
--- a/arch/arm/mach-omap2/omap-secure.c
+++ b/arch/arm/mach-omap2/omap-secure.c
@@ -135,3 +135,14 @@ u32 rx51_secure_update_aux_cr(u32 set_bits, u32 clear_bits)
FLAG_START_CRITICAL,
1, acr, 0, 0, 0);
}
+
+/**
+ * rx51_secure_rng_call: Routine for HW random generator
+ */
+u32 rx51_secure_rng_call(u32 ptr, u32 count, u32 flag)
+{
+ return rx51_secure_dispatcher(RX51_PPA_HWRNG,
+ 0,
+ NO_FLAG,
+ 3, ptr, count, flag, 0);
+}
diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-secure.h
index 51b59c6..f6cabb0 100644
--- a/arch/arm/mach-omap2/omap-secure.h
+++ b/arch/arm/mach-omap2/omap-secure.h
@@ -65,6 +65,7 @@ extern int omap_secure_ram_reserve_memblock(void);
extern u32 rx51_secure_dispatcher(u32 idx, u32 process, u32 flag, u32 nargs,
u32 arg1, u32 arg2, u32 arg3, u32 arg4);
extern u32 rx51_secure_update_aux_cr(u32 set_bits, u32 clear_bits);
+extern u32 rx51_secure_rng_call(u32 ptr, u32 count, u32 flag);
#ifdef CONFIG_OMAP4_ERRATA_I688
extern int omap_barrier_reserve_memblock(void);
--
1.7.10.4
next prev parent reply other threads:[~2013-09-20 13:25 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-28 18:05 [PATCH] OMAP3 ROM Random Number Generator support Pali Rohár
2013-03-24 14:15 ` Pali Rohár
2013-03-27 21:09 ` Tony Lindgren
2013-03-27 22:03 ` Pali Rohár
2013-03-27 22:25 ` Tony Lindgren
2013-03-28 17:54 ` Pali Rohár
2013-03-28 21:44 ` Tony Lindgren
2013-03-31 9:28 ` Pali Rohár
2013-04-01 16:25 ` Tony Lindgren
2013-09-18 20:05 ` [PATCH 0/2] " Pali Rohár
2013-09-18 20:05 ` [PATCH 1/2] hwrng: " Pali Rohár
2013-09-18 20:22 ` Joe Perches
2013-09-18 20:50 ` Aaro Koskinen
2013-09-18 20:05 ` [PATCH 2/2] RX-51: Add support for OMAP3 ROM Random Number Generator Pali Rohár
2013-09-18 20:39 ` Tony Lindgren
2013-09-20 13:25 ` [PATCH v2 0/3] OMAP3 ROM Random Number Generator support Pali Rohár
2013-09-20 13:25 ` [PATCH v2 1/3] omap2: Change clk dev id for rng to omap3-rom-rng Pali Rohár
2013-09-20 16:23 ` Tony Lindgren
2013-09-20 16:41 ` Pali Rohár
2013-09-20 17:46 ` Tony Lindgren
2013-09-20 18:24 ` Pali Rohár
2013-09-20 18:31 ` Tony Lindgren
2013-09-20 13:25 ` [PATCH v2 2/3] hwrng: OMAP3 ROM Random Number Generator support Pali Rohár
2013-10-08 19:04 ` Tony Lindgren
2013-10-16 12:57 ` Herbert Xu
2013-11-18 21:51 ` Pali Rohár
2013-11-19 2:14 ` Herbert Xu
2013-11-23 9:37 ` Pali Rohár
2013-11-23 12:09 ` Sebastian Reichel
2013-09-20 13:25 ` Pali Rohár [this message]
2013-10-08 19:06 ` [PATCH v2 3/3] RX-51: Add support for OMAP3 ROM Random Number Generator Tony Lindgren
2013-03-28 9:52 ` [PATCH] OMAP3 ROM Random Number Generator support Russell King - ARM Linux
2013-03-28 17:24 ` Pali Rohár
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