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Diffstat (limited to 'arch/arm/mach-omap2/prm33xx.c')
-rw-r--r--arch/arm/mach-omap2/prm33xx.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/arch/arm/mach-omap2/prm33xx.c b/arch/arm/mach-omap2/prm33xx.c
index 4b65a0f9cf..505d685d67 100644
--- a/arch/arm/mach-omap2/prm33xx.c
+++ b/arch/arm/mach-omap2/prm33xx.c
@@ -10,15 +10,12 @@
#include <linux/errno.h>
#include <linux/err.h>
#include <linux/io.h>
+#include <linux/reboot.h>
#include "powerdomain.h"
#include "prm33xx.h"
#include "prm-regbits-33xx.h"
-#define AM33XX_PRM_RSTCTRL_OFFSET 0x0000
-
-#define AM33XX_RST_GLOBAL_WARM_SW_MASK (1 << 0)
-
/* Read a register in a PRM instance */
static u32 am33xx_prm_read_reg(s16 inst, u16 idx)
{
@@ -322,10 +319,19 @@ static int am33xx_check_vcvp(void)
*
* Immediately reboots the device through warm reset.
*/
-static void am33xx_prm_global_warm_sw_reset(void)
+static void am33xx_prm_global_sw_reset(void)
{
- am33xx_prm_rmw_reg_bits(AM33XX_RST_GLOBAL_WARM_SW_MASK,
- AM33XX_RST_GLOBAL_WARM_SW_MASK,
+ /*
+ * Historically AM33xx performed warm reset for all requested reboot_mode.
+ * Keep this behaviour unchanged for all except newly added REBOOT_COLD.
+ */
+ u32 mask = AM33XX_RST_GLOBAL_WARM_SW_MASK;
+
+ if (prm_reboot_mode == REBOOT_COLD)
+ mask = AM33XX_RST_GLOBAL_COLD_SW_MASK;
+
+ am33xx_prm_rmw_reg_bits(mask,
+ mask,
AM33XX_PRM_DEVICE_MOD,
AM33XX_PRM_RSTCTRL_OFFSET);
@@ -386,7 +392,7 @@ static struct prm_ll_data am33xx_prm_ll_data = {
.assert_hardreset = am33xx_prm_assert_hardreset,
.deassert_hardreset = am33xx_prm_deassert_hardreset,
.is_hardreset_asserted = am33xx_prm_is_hardreset_asserted,
- .reset_system = am33xx_prm_global_warm_sw_reset,
+ .reset_system = am33xx_prm_global_sw_reset,
};
int __init am33xx_prm_init(const struct omap_prcm_init_data *data)