From: Ohad Ben-Cohen <ohadb@xxxxxx>
Add an omap_device for each remote processor on the system
Signed-off-by: Ohad Ben-Cohen <ohadb@xxxxxx>
Signed-off-by: Hari Kanigeri <h-kanigeri2@xxxxxx>
---
arch/arm/mach-omap2/devices.c | 86 +++++++++++++++++++++++++++++++++++++++++
1 files changed, 86 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 18ad931..d365db6 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -15,6 +15,7 @@
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/clk.h>
+#include <linux/err.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
@@ -26,9 +27,13 @@
#include <plat/mux.h>
#include <mach/gpio.h>
#include <plat/mmc.h>
+#include <plat/remoteproc.h>
#include "mux.h"
+#include <plat/omap_device.h>
+#include <plat/omap_hwmod.h>
+
#if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
static struct resource cam_resources[] = {
@@ -136,6 +141,86 @@ static inline void omap_init_camera(void)
}
#endif
+#if defined(CONFIG_OMAP_REMOTE_PROC) || defined(CONFIG_OMAP_REMOTE_PROC_MODULE)
+static struct omap_device_pm_latency omap_rproc_latency[] = {
+ {
+ .deactivate_func = omap_device_idle_hwmods,
+ .activate_func = omap_device_enable_hwmods,
+ .deactivate_lat = 1,
+ .activate_lat = 1,
+ },
+};
+
+static struct omap_rproc_platform_data *omap_get_remoteproc_data(void)
+{
+ struct omap_rproc_platform_data *rproc_data = NULL;
+
+ if (cpu_is_omap3430() || cpu_is_omap3630())
+ rproc_data = omap3_get_rproc_data();
+ else if (cpu_is_omap44xx())
+ rproc_data = omap4_get_rproc_data();
+ else
+ pr_err("%s: platform not supported\n", __func__);
+
+ return rproc_data;
+}
+
+int omap_get_num_of_remoteproc(void)
+{
+ int num = -1;
+
+ if (cpu_is_omap3430() || cpu_is_omap3630())
+ num = omap3_get_rproc_data_size();
+ else if (cpu_is_omap44xx())
+ num = omap4_get_rproc_data_size();
+ else
+ pr_err("%s: platform not supported\n", __func__);
+
+ return num;
+}
+EXPORT_SYMBOL(omap_get_num_of_remoteproc);
+
+static inline void omap_init_rproc(void)
+{
+ struct omap_hwmod *oh;
+ struct omap_device *od;
+ struct omap_device_pm_latency *ohl;
+ char *oh_name, *pdev_name;
+ int ohl_cnt = 0, i;
+ int rproc_data_size;
+ struct omap_rproc_platform_data *rproc_data;
+
+ pdev_name = "omap-rproc";
+ ohl = omap_rproc_latency;
+ ohl_cnt = ARRAY_SIZE(omap_rproc_latency);
+
+ rproc_data = omap_get_remoteproc_data();
+ rproc_data_size = omap_get_num_of_remoteproc();
+ if (rproc_data == NULL || rproc_data_size <= 0) {
+ pr_err("%s: platform not supported\n", __func__);
+ return;
+ }
+
+ for (i = 0; i < rproc_data_size; i++) {
+ oh_name = rproc_data[i].oh_name;
+ oh = omap_hwmod_lookup(oh_name);
+ if (!oh) {
+ pr_err("%s: could not look up %s\n", __func__, oh_name);
+ continue;
+ }
+
+ od = omap_device_build(pdev_name, i, oh,
+ &rproc_data[i],
+ sizeof(struct omap_rproc_platform_data),
+ ohl, ohl_cnt);
+ WARN(IS_ERR(od), "Could not build omap_device for %s %s\n",
+ pdev_name, oh_name);
+ }
+}
+#else
+static inline void omap_init_rproc(void) { }
+#endif /* CONFIG_OMAP_REMOTE_PROC */
+
#if defined(CONFIG_OMAP_MBOX_FWK) || defined(CONFIG_OMAP_MBOX_FWK_MODULE)
#define MBOX_REG_SIZE 0x120
@@ -773,6 +858,7 @@ static int __init omap2_init_devices(void)
omap_hsmmc_reset();
omap_init_camera();
omap_init_mbox();
+ omap_init_rproc();
omap_init_mcspi();
omap_hdq_init();
omap_init_sti();
--
1.7.0.4
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