From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?Pali=20Roh=C3=A1r?= Subject: [PATCH 2/2] RX-51: Add support for OMAP3 ROM Random Number Generator Date: Wed, 18 Sep 2013 22:05:57 +0200 Message-ID: <1379534757-20870-3-git-send-email-pali.rohar@gmail.com> References: <201303281854.02847@pali> <1379534757-20870-1-git-send-email-pali.rohar@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <1379534757-20870-1-git-send-email-pali.rohar@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Matt Mackall , Herbert Xu , Tony Lindgren , Russell King Cc: linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org, =?UTF-8?q?Pali=20Roh=C3=A1r?= List-Id: linux-omap@vger.kernel.org Signed-off-by: Pali Roh=C3=A1r --- arch/arm/mach-omap2/board-rx51.c | 10 ++++++++++ arch/arm/mach-omap2/omap-secure.c | 11 +++++++++++ arch/arm/mach-omap2/omap-secure.h | 1 + 3 files changed, 22 insertions(+) diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/boa= rd-rx51.c index db168c9..c2a3e39 100644 --- a/arch/arm/mach-omap2/board-rx51.c +++ b/arch/arm/mach-omap2/board-rx51.c @@ -93,6 +93,14 @@ static struct omap_musb_board_data musb_board_data =3D= { .power =3D 0, }; =20 +static struct platform_device omap3_rom_rng_device =3D { + .name =3D "omap_rng", + .id =3D -1, + .dev =3D { + .platform_data =3D rx51_secure_rng_call, + }, +}; + static void __init rx51_init(void) { struct omap_sdrc_params *sdrc_params; @@ -113,6 +121,8 @@ static void __init rx51_init(void) /* set IBE to 1 */ rx51_secure_update_aux_cr(BIT(6), 0); #endif + pr_info("RX-51: Registring OMAP3 HWRNG device\n"); + platform_device_register(&omap3_rom_rng_device); } =20 /* Ensure SDRC pins are mux'd for self-refresh */ diff --git a/arch/arm/mach-omap2/omap-secure.c b/arch/arm/mach-omap2/om= ap-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 cl= ear_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/om= ap-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); =20 #ifdef CONFIG_OMAP4_ERRATA_I688 extern int omap_barrier_reserve_memblock(void); --=20 1.7.10.4