diff mbox series

[v4,1/3] hw/misc/zynq_slcr: Add boot-mode property

Message ID 20240621125906.1300995-2-sai.pavan.boddu@amd.com (mailing list archive)
State New, archived
Headers show
Series Add boot-mode property for zynq | expand

Commit Message

Sai Pavan Boddu June 21, 2024, 12:59 p.m. UTC 
boot-mode property sets user values into BOOT_MODE register, on hardware
these are derived from board switches.

Signed-off-by: Sai Pavan Boddu <sai.pavan.boddu@amd.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Francisco Iglesias <francisco.iglesias@amd.com>
---
 hw/misc/zynq_slcr.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/hw/misc/zynq_slcr.c b/hw/misc/zynq_slcr.c
index 3412ff099ea..ad814c3a79b 100644
--- a/hw/misc/zynq_slcr.c
+++ b/hw/misc/zynq_slcr.c
@@ -24,6 +24,8 @@ 
 #include "hw/registerfields.h"
 #include "hw/qdev-clock.h"
 #include "qom/object.h"
+#include "hw/qdev-properties.h"
+#include "qapi/error.h"
 
 #ifndef ZYNQ_SLCR_ERR_DEBUG
 #define ZYNQ_SLCR_ERR_DEBUG 0
@@ -121,6 +123,7 @@  REG32(RST_REASON, 0x250)
 
 REG32(REBOOT_STATUS, 0x258)
 REG32(BOOT_MODE, 0x25c)
+    FIELD(BOOT_MODE, BOOT_MODE, 0, 4)
 
 REG32(APU_CTRL, 0x300)
 REG32(WDT_CLK_SEL, 0x304)
@@ -195,6 +198,7 @@  struct ZynqSLCRState {
     Clock *ps_clk;
     Clock *uart0_ref_clk;
     Clock *uart1_ref_clk;
+    uint8_t boot_mode;
 };
 
 /*
@@ -371,7 +375,7 @@  static void zynq_slcr_reset_init(Object *obj, ResetType type)
     s->regs[R_FPGA_RST_CTRL]  = 0x01F33F0F;
     s->regs[R_RST_REASON]     = 0x00000040;
 
-    s->regs[R_BOOT_MODE]      = 0x00000001;
+    s->regs[R_BOOT_MODE]      = s->boot_mode & R_BOOT_MODE_BOOT_MODE_MASK;
 
     /* 0x700 - 0x7D4 */
     for (i = 0; i < 54; i++) {
@@ -588,6 +592,15 @@  static const ClockPortInitArray zynq_slcr_clocks = {
     QDEV_CLOCK_END
 };
 
+static void zynq_slcr_realize(DeviceState *dev, Error **errp)
+{
+    ZynqSLCRState *s = ZYNQ_SLCR(dev);
+
+    if (s->boot_mode > 0xF) {
+        error_setg(errp, "Invalid boot mode %d specified", s->boot_mode);
+    }
+}
+
 static void zynq_slcr_init(Object *obj)
 {
     ZynqSLCRState *s = ZYNQ_SLCR(obj);
@@ -610,15 +623,22 @@  static const VMStateDescription vmstate_zynq_slcr = {
     }
 };
 
+static Property zynq_slcr_props[] = {
+    DEFINE_PROP_UINT8("boot-mode", ZynqSLCRState, boot_mode, 1),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 static void zynq_slcr_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     ResettableClass *rc = RESETTABLE_CLASS(klass);
 
     dc->vmsd = &vmstate_zynq_slcr;
+    dc->realize = zynq_slcr_realize;
     rc->phases.enter = zynq_slcr_reset_init;
     rc->phases.hold  = zynq_slcr_reset_hold;
     rc->phases.exit  = zynq_slcr_reset_exit;
+    device_class_set_props(dc, zynq_slcr_props);
 }
 
 static const TypeInfo zynq_slcr_info = {