You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
110 lines
3.7 KiB
Diff
110 lines
3.7 KiB
Diff
From 070469397154c87b14fab48d2fc231ba83007c1b Mon Sep 17 00:00:00 2001
|
|
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
|
|
Date: Wed, 5 Jun 2013 09:04:59 +0200
|
|
Subject: [PATCH 029/203] arm: mvebu: don't hardcode the physical address for
|
|
mvebu-mbus
|
|
|
|
Since the mvebu-mbus driver doesn't yet have a DT binding (and this DT
|
|
binding may not necessarily be ready for 3.11), the physical address
|
|
of the mvebu-mbus registers are currently hardcoded. This doesn't play
|
|
well with the fact that the internal registers base address may be
|
|
different depending on the bootloader.
|
|
|
|
In order to have only one central place for the physical address of
|
|
the internal registers, we now use of_translate_address() to translate
|
|
the mvebu-mbus register offsets into the real physical address, by
|
|
using DT-based address translation. This will go away once the
|
|
mvebu-mbus driver gains a proper DT binding.
|
|
|
|
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
|
|
Acked-by: Arnd Bergmann <arnd@arndb.de>
|
|
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
|
|
---
|
|
arch/arm/mach-mvebu/armada-370-xp.c | 38 ++++++++++++++++++++++++++-----------
|
|
arch/arm/mach-mvebu/armada-370-xp.h | 8 --------
|
|
2 files changed, 27 insertions(+), 19 deletions(-)
|
|
|
|
--- a/arch/arm/mach-mvebu/armada-370-xp.c
|
|
+++ b/arch/arm/mach-mvebu/armada-370-xp.c
|
|
@@ -14,6 +14,7 @@
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
+#include <linux/of_address.h>
|
|
#include <linux/of_platform.h>
|
|
#include <linux/io.h>
|
|
#include <linux/time-armada-370-xp.h>
|
|
@@ -34,29 +35,44 @@ static void __init armada_370_xp_map_io(
|
|
debug_ll_io_init();
|
|
}
|
|
|
|
-static void __init armada_370_xp_timer_and_clk_init(void)
|
|
+/*
|
|
+ * This initialization will be replaced by a DT-based
|
|
+ * initialization once the mvebu-mbus driver gains DT support.
|
|
+ */
|
|
+
|
|
+#define ARMADA_370_XP_MBUS_WINS_OFFS 0x20000
|
|
+#define ARMADA_370_XP_MBUS_WINS_SIZE 0x100
|
|
+#define ARMADA_370_XP_SDRAM_WINS_OFFS 0x20180
|
|
+#define ARMADA_370_XP_SDRAM_WINS_SIZE 0x20
|
|
+
|
|
+static void __init armada_370_xp_mbus_init(void)
|
|
{
|
|
char *mbus_soc_name;
|
|
+ struct device_node *dn;
|
|
+ const __be32 mbus_wins_offs = cpu_to_be32(ARMADA_370_XP_MBUS_WINS_OFFS);
|
|
+ const __be32 sdram_wins_offs = cpu_to_be32(ARMADA_370_XP_SDRAM_WINS_OFFS);
|
|
|
|
- mvebu_clocks_init();
|
|
- armada_370_xp_timer_init();
|
|
- coherency_init();
|
|
-
|
|
- /*
|
|
- * This initialization will be replaced by a DT-based
|
|
- * initialization once the mvebu-mbus driver gains DT support.
|
|
- */
|
|
if (of_machine_is_compatible("marvell,armada370"))
|
|
mbus_soc_name = "marvell,armada370-mbus";
|
|
else
|
|
mbus_soc_name = "marvell,armadaxp-mbus";
|
|
|
|
+ dn = of_find_node_by_name(NULL, "internal-regs");
|
|
+ BUG_ON(!dn);
|
|
+
|
|
mvebu_mbus_init(mbus_soc_name,
|
|
- ARMADA_370_XP_MBUS_WINS_BASE,
|
|
+ of_translate_address(dn, &mbus_wins_offs),
|
|
ARMADA_370_XP_MBUS_WINS_SIZE,
|
|
- ARMADA_370_XP_SDRAM_WINS_BASE,
|
|
+ of_translate_address(dn, &sdram_wins_offs),
|
|
ARMADA_370_XP_SDRAM_WINS_SIZE);
|
|
+}
|
|
|
|
+static void __init armada_370_xp_timer_and_clk_init(void)
|
|
+{
|
|
+ mvebu_clocks_init();
|
|
+ armada_370_xp_timer_init();
|
|
+ coherency_init();
|
|
+ armada_370_xp_mbus_init();
|
|
#ifdef CONFIG_CACHE_L2X0
|
|
l2x0_of_init(0, ~0UL);
|
|
#endif
|
|
--- a/arch/arm/mach-mvebu/armada-370-xp.h
|
|
+++ b/arch/arm/mach-mvebu/armada-370-xp.h
|
|
@@ -15,14 +15,6 @@
|
|
#ifndef __MACH_ARMADA_370_XP_H
|
|
#define __MACH_ARMADA_370_XP_H
|
|
|
|
-#define ARMADA_370_XP_REGS_PHYS_BASE 0xd0000000
|
|
-
|
|
-/* These defines can go away once mvebu-mbus has a DT binding */
|
|
-#define ARMADA_370_XP_MBUS_WINS_BASE (ARMADA_370_XP_REGS_PHYS_BASE + 0x20000)
|
|
-#define ARMADA_370_XP_MBUS_WINS_SIZE 0x100
|
|
-#define ARMADA_370_XP_SDRAM_WINS_BASE (ARMADA_370_XP_REGS_PHYS_BASE + 0x20180)
|
|
-#define ARMADA_370_XP_SDRAM_WINS_SIZE 0x20
|
|
-
|
|
#ifdef CONFIG_SMP
|
|
#include <linux/cpumask.h>
|
|
|