leon3: introduce the plug and play mechanism

This adds the AHB and APB plug and play devices.
They are scanned during the linux boot to discover the various peripheral.

Reviewed-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: KONRAD Frederic <frederic.konrad@adacore.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>

1 files changed, 60 insertions, 0 deletions

diff --git a/include/hw/misc/grlib_ahb_apb_pnp.h b/include/hw/misc/grlib_ahb_apb_pnp.h
new file mode 100644
index 0000000000..a0f6dcfda7
--- /dev/null
+++ b/include/hw/misc/grlib_ahb_apb_pnp.h
@@ -0,0 +1,60 @@
+/*
+ * GRLIB AHB APB PNP
+ *
+ *  Copyright (C) 2019 AdaCore
+ *
+ *  Developed by :
+ *  Frederic Konrad   <frederic.konrad@adacore.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef GRLIB_AHB_APB_PNP_H
+#define GRLIB_AHB_APB_PNP_H
+
+#define TYPE_GRLIB_AHB_PNP "grlib,ahbpnp"
+#define GRLIB_AHB_PNP(obj) \
+    OBJECT_CHECK(AHBPnp, (obj), TYPE_GRLIB_AHB_PNP)
+typedef struct AHBPnp AHBPnp;
+
+#define TYPE_GRLIB_APB_PNP "grlib,apbpnp"
+#define GRLIB_APB_PNP(obj) \
+    OBJECT_CHECK(APBPnp, (obj), TYPE_GRLIB_APB_PNP)
+typedef struct APBPnp APBPnp;
+
+void grlib_ahb_pnp_add_entry(AHBPnp *dev, uint32_t address, uint32_t mask,
+                             uint8_t vendor, uint16_t device, int slave,
+                             int type);
+void grlib_apb_pnp_add_entry(APBPnp *dev, uint32_t address, uint32_t mask,
+                             uint8_t vendor, uint16_t device, uint8_t version,
+                             uint8_t irq, int type);
+
+/* VENDORS */
+#define GRLIB_VENDOR_GAISLER (0x01)
+/* DEVICES */
+#define GRLIB_LEON3_DEV      (0x03)
+#define GRLIB_APBMST_DEV     (0x06)
+#define GRLIB_APBUART_DEV    (0x0C)
+#define GRLIB_IRQMP_DEV      (0x0D)
+#define GRLIB_GPTIMER_DEV    (0x11)
+/* TYPE */
+#define GRLIB_CPU_AREA       (0x00)
+#define GRLIB_APBIO_AREA     (0x01)
+#define GRLIB_AHBMEM_AREA    (0x02)
+
+#define GRLIB_AHB_MASTER     (0x00)
+#define GRLIB_AHB_SLAVE      (0x01)
+
+#endif /* GRLIB_AHB_APB_PNP_H */