linux-kernel - [PATCH 3/3] ARM: OMAP4: hwmod data: add des

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Message-Id: <20170609231206.19798-4-sre@kernel.org>
Date:   Sat, 10 Jun 2017 01:12:06 +0200
From:   Sebastian Reichel <sre@...nel.org>
To:     Sebastian Reichel <sre@...nel.org>,
        Tony Lindgren <tony@...mide.com>,
        Paul Walmsley <paul@...an.com>,
        Benoît Cousson <bcousson@...libre.com>
Cc:     Russell King <linux@...linux.org.uk>, linux-omap@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Joel Fernandes <joelf@...com>
Subject: [PATCH 3/3] ARM: OMAP4: hwmod data: add des

This fixes the following error during kernel boot:

platform 480a5000.des: Cannot lookup hwmod 'des'

Unfortunately the DES module is only documented partly
in the OMAP4430 TRM. I found an old patch from Joel,
which I took over and updated for currently mainline.

Signed-off-by: Joel Fernandes <joelf@...com>
Signed-off-by: Sebastian Reichel <sre@...nel.org>
---
 arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 37 ++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index 18feb49e813b..f2f13c678cfb 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -993,6 +993,42 @@ static struct omap_hwmod_ocp_if omap44xx_l3_main_2__aes1 = {
 };
 
 /*
+ * 'des' class for DES3DES module
+ */
+static struct omap_hwmod_class_sysconfig omap44xx_des_sysc = {
+	.rev_offs	= 0x30,
+	.sysc_offs	= 0x34,
+	.syss_offs	= 0x38,
+	.sysc_flags	= SYSS_HAS_RESET_STATUS,
+};
+
+static struct omap_hwmod_class omap44xx_des_hwmod_class = {
+	.name		= "des",
+	.sysc		= &omap44xx_des_sysc,
+};
+
+static struct omap_hwmod omap44xx_des_hwmod = {
+	.name		= "des",
+	.class		= &omap44xx_des_hwmod_class,
+	.clkdm_name	= "l4_secure_clkdm",
+	.main_clk	= "des_fck",
+	.prcm		= {
+		.omap4	= {
+			.context_offs	= OMAP4_RM_L4SEC_DES3DES_CONTEXT_OFFSET,
+			.clkctrl_offs	= OMAP4_CM_L4SEC_DES3DES_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+struct omap_hwmod_ocp_if omap44xx_l4_per__des = {
+	.master		= &omap44xx_l4_per_hwmod,
+	.slave		= &omap44xx_des_hwmod,
+	.clk		= "des_fck",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/*
  * 'fdif' class
  * face detection hw accelerator module
  */
@@ -4834,6 +4870,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
 	&omap44xx_mpu__emif1,
 	&omap44xx_mpu__emif2,
 	&omap44xx_l3_main_2__aes1,
+	&omap44xx_l4_per__des,
 	NULL,
 };
 
-- 
2.11.0