From: Joel Fernandes <joelf@xxxxxx>
DRA7 SoC contains hardware random number generator. Add hwmod data for
this IP so that it can be utilized.
Signed-off-by: Joel Fernandes <joelf@xxxxxx>
Signed-off-by: Lokesh Vutla <lokeshvutla@xxxxxx>
[t-kristo@xxxxxx: squashed the RNG hwmod IP flag fixes from Lokesh,
squashed the HS chip fix from Daniel Allred]
Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
---
arch/arm/mach-omap2/omap_hwmod_7xx_data.c | 36 +++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
index 87e9293..2804f06 100644
--- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
@@ -2641,6 +2641,34 @@ static int dra7xx_pciess_reset(struct omap_hwmod *oh)
},
};
+/* rng */
+static struct omap_hwmod_class_sysconfig dra7xx_rng_sysc = {
+ .rev_offs = 0x1fe0,
+ .sysc_offs = 0x1fe4,
+ .sysc_flags = SYSC_HAS_AUTOIDLE | SYSC_HAS_SIDLEMODE,
+ .idlemodes = SIDLE_FORCE | SIDLE_NO,
+ .sysc_fields = &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class dra7xx_rng_hwmod_class = {
+ .name = "rng",
+ .sysc = &dra7xx_rng_sysc,
+};
+
+static struct omap_hwmod dra7xx_rng_hwmod = {
+ .name = "rng",
+ .class = &dra7xx_rng_hwmod_class,
+ .flags = HWMOD_SWSUP_SIDLE,
+ .clkdm_name = "l4sec_clkdm",
+ .prcm = {
+ .omap4 = {
+ .clkctrl_offs = DRA7XX_CM_L4SEC_RNG_CLKCTRL_OFFSET,
+ .context_offs = DRA7XX_RM_L4SEC_RNG_CONTEXT_OFFSET,
+ .modulemode = MODULEMODE_HWCTRL,
+ },
+ },
+};
+
/*
* 'usb_otg_ss' class
*
@@ -3798,6 +3826,13 @@ static int dra7xx_pciess_reset(struct omap_hwmod *oh)
.user = OCP_USER_MPU | OCP_USER_SDMA,
};
+/* l4_per1 -> rng */
+static struct omap_hwmod_ocp_if dra7xx_l4_per1__rng = {
+ .master = &dra7xx_l4_per1_hwmod,
+ .slave = &dra7xx_rng_hwmod,
+ .user = OCP_USER_MPU,
+};
+
/* l4_per3 -> usb_otg_ss1 */
static struct omap_hwmod_ocp_if dra7xx_l4_per3__usb_otg_ss1 = {
.master = &dra7xx_l4_per3_hwmod,
@@ -4028,6 +4063,7 @@ static int dra7xx_pciess_reset(struct omap_hwmod *oh)
/* GP-only hwmod links */
static struct omap_hwmod_ocp_if *dra7xx_gp_hwmod_ocp_ifs[] __initdata = {
&dra7xx_l4_wkup__timer12,
+ &dra7xx_l4_per1__rng,
NULL,
};
--
1.9.1
--
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