[3/3] ARM: OMAP4: hwmod data: add des
diff mbox series

Message ID 20170609231206.19798-4-sre@kernel.org
State New, archived
Headers show
Series
  • OMAP4: crypto support
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Commit Message

Sebastian Reichel June 9, 2017, 11:12 p.m. UTC
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@ti.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
---
 arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 37 ++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

Comments

Tero Kristo June 12, 2017, 8:16 a.m. UTC | #1
On 10/06/17 02:12, Sebastian Reichel wrote:
> 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@ti.com>
> Signed-off-by: Sebastian Reichel <sre@kernel.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",

Change the above to l3_div_ck.

> +	.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",

l3_div_ck.

> +	.user		= OCP_USER_MPU | OCP_USER_SDMA,
> +};

l4_per is wrong interconnect for this module. It is actually connected 
to l3_main_2.

> +
> +/*
>    * '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,
>   };
>   
>

Patch
diff mbox series

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,
 };