[PULL 07/32] hw/arm/xlnx-versal: Connect Versal's PMC SLCR

[Peter Maydell]

From: Francisco Iglesias <francisco.iglesias@xilinx.com>

Connect Versal's PMC SLCR (system-level control registers) model.

Signed-off-by: Francisco Iglesias <francisco.iglesias@xilinx.com>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Message-id: 20220121161141.14389-4-francisco.iglesias@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 include/hw/arm/xlnx-versal.h |  5 +++
 hw/arm/xlnx-versal.c         | 71 +++++++++++++++++++++++++++++++++++-
 2 files changed, 75 insertions(+), 1 deletion(-)

diff --git a/include/hw/arm/xlnx-versal.h b/include/hw/arm/xlnx-versal.h
index 62fb6f0a688..811df73350b 100644
--- a/include/hw/arm/xlnx-versal.h
+++ b/include/hw/arm/xlnx-versal.h
@@ -26,6 +26,7 @@
 #include "hw/misc/xlnx-versal-xramc.h"
 #include "hw/nvram/xlnx-bbram.h"
 #include "hw/nvram/xlnx-versal-efuse.h"
+#include "hw/misc/xlnx-versal-pmc-iou-slcr.h"
 
 #define TYPE_XLNX_VERSAL "xlnx-versal"
 OBJECT_DECLARE_SIMPLE_TYPE(Versal, XLNX_VERSAL)
@@ -78,6 +79,7 @@ struct Versal {
     struct {
         struct {
             SDHCIState sd[XLNX_VERSAL_NR_SDS];
+            XlnxVersalPmcIouSlcr slcr;
         } iou;
 
         XlnxZynqMPRTC rtc;
@@ -179,6 +181,9 @@ struct Versal {
 #define MM_FPD_FPD_APU              0xfd5c0000
 #define MM_FPD_FPD_APU_SIZE         0x100
 
+#define MM_PMC_PMC_IOU_SLCR         0xf1060000
+#define MM_PMC_PMC_IOU_SLCR_SIZE    0x10000
+
 #define MM_PMC_SD0                  0xf1040000U
 #define MM_PMC_SD0_SIZE             0x10000
 #define MM_PMC_BBRAM_CTRL           0xf11f0000
diff --git a/hw/arm/xlnx-versal.c b/hw/arm/xlnx-versal.c
index fefd00b57c5..c8c0c102c74 100644
--- a/hw/arm/xlnx-versal.c
+++ b/hw/arm/xlnx-versal.c
@@ -21,11 +21,13 @@
 #include "kvm_arm.h"
 #include "hw/misc/unimp.h"
 #include "hw/arm/xlnx-versal.h"
+#include "qemu/log.h"
+#include "hw/sysbus.h"
 
 #define XLNX_VERSAL_ACPU_TYPE ARM_CPU_TYPE_NAME("cortex-a72")
 #define GEM_REVISION        0x40070106
 
-#define VERSAL_NUM_PMC_APB_IRQS 2
+#define VERSAL_NUM_PMC_APB_IRQS 3
 
 static void versal_create_apu_cpus(Versal *s)
 {
@@ -271,6 +273,7 @@ static void versal_create_pmc_apb_irq_orgate(Versal *s, 
qemu_irq *pic)
      * models:
      *  - RTC
      *  - BBRAM
+     *  - PMC SLCR
      */
     object_initialize_child(OBJECT(s), "pmc-apb-irq-orgate",
                             &s->pmc.apb_irq_orgate, TYPE_OR_IRQ);
@@ -392,6 +395,23 @@ static void versal_create_efuse(Versal *s, qemu_irq *pic)
     sysbus_connect_irq(SYS_BUS_DEVICE(ctrl), 0, pic[VERSAL_EFUSE_IRQ]);
 }
 
+static void versal_create_pmc_iou_slcr(Versal *s, qemu_irq *pic)
+{
+    SysBusDevice *sbd;
+
+    object_initialize_child(OBJECT(s), "versal-pmc-iou-slcr", &s->pmc.iou.slcr,
+                            TYPE_XILINX_VERSAL_PMC_IOU_SLCR);
+
+    sbd = SYS_BUS_DEVICE(&s->pmc.iou.slcr);
+    sysbus_realize(sbd, &error_fatal);
+
+    memory_region_add_subregion(&s->mr_ps, MM_PMC_PMC_IOU_SLCR,
+                                sysbus_mmio_get_region(sbd, 0));
+
+    sysbus_connect_irq(sbd, 0,
+                       qdev_get_gpio_in(DEVICE(&s->pmc.apb_irq_orgate), 2));
+}
+
 /* This takes the board allocated linear DDR memory and creates aliases
  * for each split DDR range/aperture on the Versal address map.
  */
@@ -448,8 +468,31 @@ static void versal_unimp_area(Versal *s, const char *name,
     memory_region_add_subregion(mr, base, mr_dev);
 }
 
+static void versal_unimp_sd_emmc_sel(void *opaque, int n, int level)
+{
+    qemu_log_mask(LOG_UNIMP,
+                  "Selecting between enabling SD mode or eMMC mode on "
+                  "controller %d is not yet implemented\n", n);
+}
+
+static void versal_unimp_qspi_ospi_mux_sel(void *opaque, int n, int level)
+{
+    qemu_log_mask(LOG_UNIMP,
+                  "Selecting between enabling the QSPI or OSPI linear address "
+                  "region is not yet implemented\n");
+}
+
+static void versal_unimp_irq_parity_imr(void *opaque, int n, int level)
+{
+    qemu_log_mask(LOG_UNIMP,
+                  "PMC SLCR parity interrupt behaviour "
+                  "is not yet implemented\n");
+}
+
 static void versal_unimp(Versal *s)
 {
+    qemu_irq gpio_in;
+
     versal_unimp_area(s, "psm", &s->mr_ps,
                         MM_PSM_START, MM_PSM_END - MM_PSM_START);
     versal_unimp_area(s, "crl", &s->mr_ps,
@@ -464,6 +507,31 @@ static void versal_unimp(Versal *s)
                         MM_IOU_SCNTR, MM_IOU_SCNTR_SIZE);
     versal_unimp_area(s, "iou-scntr-seucre", &s->mr_ps,
                         MM_IOU_SCNTRS, MM_IOU_SCNTRS_SIZE);
+
+    qdev_init_gpio_in_named(DEVICE(s), versal_unimp_sd_emmc_sel,
+                            "sd-emmc-sel-dummy", 2);
+    qdev_init_gpio_in_named(DEVICE(s), versal_unimp_qspi_ospi_mux_sel,
+                            "qspi-ospi-mux-sel-dummy", 1);
+    qdev_init_gpio_in_named(DEVICE(s), versal_unimp_irq_parity_imr,
+                            "irq-parity-imr-dummy", 1);
+
+    gpio_in = qdev_get_gpio_in_named(DEVICE(s), "sd-emmc-sel-dummy", 0);
+    qdev_connect_gpio_out_named(DEVICE(&s->pmc.iou.slcr), "sd-emmc-sel", 0,
+                                gpio_in);
+
+    gpio_in = qdev_get_gpio_in_named(DEVICE(s), "sd-emmc-sel-dummy", 1);
+    qdev_connect_gpio_out_named(DEVICE(&s->pmc.iou.slcr), "sd-emmc-sel", 1,
+                                gpio_in);
+
+    gpio_in = qdev_get_gpio_in_named(DEVICE(s), "qspi-ospi-mux-sel-dummy", 0);
+    qdev_connect_gpio_out_named(DEVICE(&s->pmc.iou.slcr),
+                                "qspi-ospi-mux-sel", 0,
+                                gpio_in);
+
+    gpio_in = qdev_get_gpio_in_named(DEVICE(s), "irq-parity-imr-dummy", 0);
+    qdev_connect_gpio_out_named(DEVICE(&s->pmc.iou.slcr),
+                                SYSBUS_DEVICE_GPIO_IRQ, 0,
+                                gpio_in);
 }
 
 static void versal_realize(DeviceState *dev, Error **errp)
@@ -483,6 +551,7 @@ static void versal_realize(DeviceState *dev, Error **errp)
     versal_create_xrams(s, pic);
     versal_create_bbram(s, pic);
     versal_create_efuse(s, pic);
+    versal_create_pmc_iou_slcr(s, pic);
     versal_map_ddr(s);
     versal_unimp(s);
 
-- 
2.25.1