[Xen-devel] [PATCH v4 3/3] xen/arm: Introduce support for Renesas R-Car Gen2 platform

[Oleksandr Tyshchenko <oleksandr.tyshchenko@xxxxxxxxxxxxxxx>]

From: Iurii Konovalenko <iurii.konovalenko@xxxxxxxxxxxxxxx>

Signed-off-by: Iurii Konovalenko <iurii.konovalenko@xxxxxxxxxxxxxxx>
Reviewed-by: Julien Grall <julien.grall@xxxxxxxxxx>
---
 xen/arch/arm/platforms/Makefile   |  1 +
 xen/arch/arm/platforms/shmobile.c | 71 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 72 insertions(+)
 create mode 100644 xen/arch/arm/platforms/shmobile.c

diff --git a/xen/arch/arm/platforms/Makefile b/xen/arch/arm/platforms/Makefile
index 8f47c16..29e931a 100644
--- a/xen/arch/arm/platforms/Makefile
+++ b/xen/arch/arm/platforms/Makefile
@@ -4,5 +4,6 @@ obj-$(CONFIG_ARM_32) += exynos5.o
 obj-$(CONFIG_ARM_32) += midway.o
 obj-$(CONFIG_ARM_32) += omap5.o
 obj-$(CONFIG_ARM_32) += sunxi.o
+obj-$(CONFIG_ARM_32) += shmobile.o
 obj-$(CONFIG_ARM_64) += seattle.o
 obj-$(CONFIG_ARM_64) += xgene-storm.o
diff --git a/xen/arch/arm/platforms/shmobile.c 
b/xen/arch/arm/platforms/shmobile.c
new file mode 100644
index 0000000..c462b0e
--- /dev/null
+++ b/xen/arch/arm/platforms/shmobile.c
@@ -0,0 +1,71 @@
+/*
+ * xen/arch/arm/platforms/shmobile.c
+ *
+ * Renesas R-Car Gen2 specific settings
+ *
+ * Iurii Konovalenko <iurii.konovalenko@xxxxxxxxxxxxxxx>
+ *
+ * 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.
+ */
+
+#include <xen/mm.h>
+#include <xen/vmap.h>
+#include <asm/platform.h>
+#include <asm/io.h>
+
+#define SHMOBILE_RAM_ADDR                         0xE63C0000
+#define SHMOBILE_RAM_SIZE                         0x1000
+#define SHMOBILE_SMP_START_OFFSET                 0xFFC
+
+static int __init shmobile_smp_init(void)
+{
+    void __iomem *pram;
+
+    /* map ICRAM */
+    pram = ioremap_nocache(SHMOBILE_RAM_ADDR, SHMOBILE_RAM_SIZE);
+    if( !pram )
+    {
+        dprintk( XENLOG_ERR, "Unable to map Shmobile ICRAM\n");
+        return -ENOMEM;
+    }
+
+    /* setup reset vectors */
+    writel(__pa(init_secondary), pram + SHMOBILE_SMP_START_OFFSET);
+    iounmap(pram);
+
+    sev();
+
+    return 0;
+}
+
+static const char const *shmobile_dt_compat[] __initdata =
+{
+    "renesas,lager",
+    NULL
+};
+
+PLATFORM_START(shmobile, "Renesas R-Car Gen2")
+    .compatible = shmobile_dt_compat,
+    .cpu_up = cpu_up_send_sgi,
+    .smp_init = shmobile_smp_init,
+
+    .dom0_gnttab_start = 0xc0000000,
+    .dom0_gnttab_size = 0x20000,
+PLATFORM_END
+
+/*
+ * Local variables:
+ * mode: C
+ * c-file-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */
-- 
1.9.1


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