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arm/zynq: Add software system reset via SCLR 

Support software-driven system reset via the register in the SCLR.

Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Sebastian Huber 2014-02-05 08:31:55 +01:00 committed by Peter Maydell
parent db7dfd4c7e
commit 69991d7dcb
1 changed files with 5 additions and 0 deletions
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5
hw/misc/zynq_slcr.c
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@ -31,6 +31,8 @@
#define XILINX_LOCK_KEY 0x767b
#define XILINX_UNLOCK_KEY 0xdf0d
#define R_PSS_RST_CTRL_SOFT_RST 0x1
typedef enum {
ARM_PLL_CTRL,
DDR_PLL_CTRL,
@ -399,6 +401,9 @@ static void zynq_slcr_write(void *opaque, hwaddr offset,
goto bad_reg;
}
s->reset[(offset - 0x200) / 4] = val;
if (offset == 0x200 && (val & R_PSS_RST_CTRL_SOFT_RST)) {
qemu_system_reset_request();
}
break;
case 0x300:
s->apu_ctrl = val;