This patch adds basic initialization in
the voltage layer for AM35xx processors.
In absence of AVS, functions vp_init() and
vc_init() are empty.
Signed-off-by: Sanjeev Premi <premi@xxxxxx>
---
arch/arm/mach-omap2/voltage.c | 45 ++++++++++++++++++++++++++++++++++++++++-
1 files changed, 44 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/voltage.c b/arch/arm/mach-omap2/voltage.c
index bbc36e7..63dac11 100644
--- a/arch/arm/mach-omap2/voltage.c
+++ b/arch/arm/mach-omap2/voltage.c
@@ -194,6 +194,30 @@ static struct omap_vdd_info omap3_vdd_info[] = {
#define OMAP3_NR_SCALABLE_VDD ARRAY_SIZE(omap3_vdd_info)
+/*
+ * AM3517 VDD structures
+ * TODO: The values in vp_offs are just a copy of OMAP3 for now.
+ * Assignments need to be looked again; but appears that
+ * they won't ever be used.
+ */
+static struct omap_vdd_info am3517_vdd_info[] = {
+ {
+ .vp_offs = {
+ .vpconfig = OMAP3_PRM_VP1_CONFIG_OFFSET,
+ .vstepmin = OMAP3_PRM_VP1_VSTEPMIN_OFFSET,
+ .vstepmax = OMAP3_PRM_VP1_VSTEPMAX_OFFSET,
+ .vlimitto = OMAP3_PRM_VP1_VLIMITTO_OFFSET,
+ .vstatus = OMAP3_PRM_VP1_STATUS_OFFSET,
+ .voltage = OMAP3_PRM_VP1_VOLTAGE_OFFSET,
+ },
+ .voltdm = {
+ .name = "mpu",
+ },
+ },
+};
+
+#define AM3517_NR_SCALABLE_VDD 0
+
/* OMAP4 VDD sturctures */
static struct omap_vdd_info omap4_vdd_info[] = {
{
@@ -1551,11 +1575,30 @@ int __init omap_voltage_late_init(void)
}
/**
+ * AM35xx - dummy initialization of voltage controller
+ */
+static void __init am3517_vc_init(struct omap_vdd_info *vdd)
+{
+}
+/**
+ * AM35xx - dummy initialization of voltage processor
+ */
+static void __init am3517_vp_init(struct omap_vdd_info *vdd)
+{
+}
+
+/**
* omap_voltage_early_init()- Volatage driver early init
*/
static int __init omap_voltage_early_init(void)
{
- if (cpu_is_omap34xx()) {
+ if (cpu_is_omap3505() || cpu_is_omap3517()) {
+ vdd_info = am3517_vdd_info;
+ nr_scalable_vdd = AM3517_NR_SCALABLE_VDD;
+ vc_init = am3517_vc_init;
+ vp_init = am3517_vp_init;
+ vdd_data_configure = omap3_vdd_data_configure;
+ } else if (cpu_is_omap34xx()) {
vdd_info = omap3_vdd_info;
nr_scalable_vdd = OMAP3_NR_SCALABLE_VDD;
vc_init = omap3_vc_init;
--
1.7.2.2
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