For 4460sdp/blaze/panda, GPIO-7 of bank1 is used for controlling
the TPS modes, hence GPIO1 should not be reset
during init as reset will cause the TPS voltage to
drop to 0.9 V preventing the system from continuing the boot.
Signed-off-by: Nishanth Menon <nm@xxxxxx>
Signed-off-by: Moiz Sonasath <m-sonasath@xxxxxx>
Signed-off-by: Rajendra Nayak <rnayak@xxxxxx>
---
arch/arm/mach-omap2/board-4430sdp.c | 14 ++++++++++++++
arch/arm/mach-omap2/board-omap4panda.c | 14 ++++++++++++++
2 files changed, 28 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index 63de2d3..7343209 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -36,6 +36,7 @@
#include <plat/usb.h>
#include <plat/mmc.h>
#include <plat/omap4-keypad.h>
+#include <plat/omap_hwmod.h>
#include <video/omapdss.h>
#include "mux.h"
@@ -298,6 +299,19 @@ static void __init omap_4430sdp_init_early(void)
#ifdef CONFIG_OMAP_32K_TIMER
omap2_gp_clockevent_set_gptimer(1);
#endif
+ /*
+ * For 4460sdp/blaze, GPIO-7 of bank1 is used for controlling
+ * the TPS modes, hence GPIO1 should not be reset
+ * during init as reset will cause the TPS voltage to
+ * drop to 0.9 V preventing the system from continuing the boot.
+ */
+ if (cpu_is_omap446x()) {
+ struct omap_hwmod *gpio1 = omap_hwmod_lookup("gpio1");
+ if (gpio1)
+ omap_hwmod_no_setup_reset(gpio1);
+ else
+ pr_err("%s: gpio1 hwmod lookup failed\n", __func__);
+ }
}
static struct omap_musb_board_data musb_board_data = {
diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index 0cfe200..75a847c 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -40,6 +40,7 @@
#include <plat/common.h>
#include <plat/usb.h>
#include <plat/mmc.h>
+#include <plat/omap_hwmod.h>
#include <video/omap-panel-generic-dpi.h>
#include "timer-gp.h"
@@ -100,6 +101,19 @@ static void __init omap4_panda_init_early(void)
{
omap2_init_common_infrastructure();
omap2_init_common_devices(NULL, NULL);
+ /*
+ * For 4460panda, GPIO-7 of bank1 is used for controling
+ * the TPS modes, hence GPIO1 should not be reset
+ * during init as reset will cause the TPS voltage to
+ * drop to 0.9 V preventing the system from continuing the boot.
+ */
+ if (cpu_is_omap446x()) {
+ struct omap_hwmod *gpio1 = omap_hwmod_lookup("gpio1");
+ if (gpio1)
+ omap_hwmod_no_setup_reset(gpio1);
+ else
+ pr_err("%s: gpio1 hwmod lookup failed\n", __func__);
+ }
}
static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
--
1.7.4.1
--
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