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 <[email protected]>
Signed-off-by: Sebastian Reichel <[email protected]>
---
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,
};
