ARM: sti: Add STiH415 SOC support

The STiH415 is the next generation of HD, AVC set-top box processors for
satellite, cable, terrestrial and IP-STB markets. It is an ARM Cortex-A9
1.0 GHz, dual-core CPU.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
CC: Stephen Gallimore <stephen.gallimore@st.com>
CC: Stuart Menefy <stuart.menefy@st.com>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 47 insertions, 0 deletions

diff --git a/arch/arm/mach-sti/board-dt.c b/arch/arm/mach-sti/board-dt.c
new file mode 100644
index 000000000000..3faf64221d45
--- /dev/null
+++ b/arch/arm/mach-sti/board-dt.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2013 STMicroelectronics (R&D) Limited.
+ * Author(s): Srinivas Kandagatla <srinivas.kandagatla@st.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
+#include <linux/irq.h>
+#include <asm/hardware/cache-l2x0.h>
+#include <asm/mach/arch.h>
+
+#include "smp.h"
+
+void __init stih41x_l2x0_init(void)
+{
+        u32 way_size = 0x4;
+        u32 aux_ctrl;
+        /* may be this can be encoded in macros like BIT*() */
+        aux_ctrl = (0x1 << L2X0_AUX_CTRL_SHARE_OVERRIDE_SHIFT) |
+                (0x1 << L2X0_AUX_CTRL_DATA_PREFETCH_SHIFT) |
+                (0x1 << L2X0_AUX_CTRL_INSTR_PREFETCH_SHIFT) |
+                (way_size << L2X0_AUX_CTRL_WAY_SIZE_SHIFT);
+
+        l2x0_of_init(aux_ctrl, L2X0_AUX_CTRL_MASK);
+}
+
+static void __init stih41x_timer_init(void)
+{
+        of_clk_init(NULL);
+        clocksource_of_init();
+        stih41x_l2x0_init();
+}
+
+static const char *stih41x_dt_match[] __initdata = {
+        "st,stih415",
+        NULL
+};
+
+DT_MACHINE_START(STM, "STiH415 SoC with Flattened Device Tree")
+        .init_time      = stih41x_timer_init,
+        .smp            = smp_ops(sti_smp_ops),
+        .dt_compat      = stih41x_dt_match,
+MACHINE_END