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authorOlof Johansson <olof@lixom.net>2013-04-17 22:26:15 -0700
committerOlof Johansson <olof@lixom.net>2013-04-17 22:26:25 -0700
commit8b85143e5dc428e8023bd741dfa9ec2e64ff4525 (patch)
treec7bdc555c5ac39c8ce6850e575e3906666cc05d2 /arch/arm/mach-mvebu
parent567b1b0839150e8d701553cbb586365b1f2ed36c (diff)
parentda497f6fbaa190d34907ecc9dd85cfc62ba9f5a2 (diff)
Merge tag 'soc_for_v3.10' of git://git.infradead.org/users/jcooper/linux into next/soc2
From Jason Cooper: mvebu soc changes for v3.10 - use the mvebu-mbus driver - prep for LPAE support Depends: - mvebu/cleanup (tags/cleanup_for_v3.10) - mvebu/drivers (tags/drivers_for_v3.10) * tag 'soc_for_v3.10' of git://git.infradead.org/users/jcooper/linux: ARM: mvebu: Align the internal registers virtual base to support LPAE ARM: mvebu: Limit the DMA zone when LPAE is selected arm: plat-orion: remove addr-map code arm: mach-mv78xx0: convert to use the mvebu-mbus driver arm: mach-orion5x: convert to use mvebu-mbus driver arm: mach-dove: convert to use mvebu-mbus driver arm: mach-kirkwood: convert to use mvebu-mbus driver arm: mach-mvebu: convert to use mvebu-mbus driver bus: mvebu: fix mistake in PCIe window target attribute for Kirkwood bus: mvebu-mbus: Restore checking for coherency fabric hardware ARM: Orion: add dbg_show function to gpio-orion driver bus: introduce an Marvell EBU MBus driver arm: mach-orion5x: use mv_mbus_dram_info() in PCI code arm: plat-orion: use mv_mbus_dram_info() in PCIe code arm: plat-orion: only build addr-map.c when needed Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/mach-mvebu')
-rw-r--r--arch/arm/mach-mvebu/Kconfig2
-rw-r--r--arch/arm/mach-mvebu/Makefile2
-rw-r--r--arch/arm/mach-mvebu/addr-map.c137
-rw-r--r--arch/arm/mach-mvebu/armada-370-xp.c18
-rw-r--r--arch/arm/mach-mvebu/armada-370-xp.h8
-rw-r--r--arch/arm/mach-mvebu/platsmp.c2
6 files changed, 30 insertions, 139 deletions
diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig
index 440b13ef1fed..e11acbb0a46d 100644
--- a/arch/arm/mach-mvebu/Kconfig
+++ b/arch/arm/mach-mvebu/Kconfig
@@ -13,6 +13,8 @@ config ARCH_MVEBU
select MVEBU_CLK_CORE
select MVEBU_CLK_CPU
select MVEBU_CLK_GATING
+ select MVEBU_MBUS
+ select ZONE_DMA if ARM_LPAE
if ARCH_MVEBU
diff --git a/arch/arm/mach-mvebu/Makefile b/arch/arm/mach-mvebu/Makefile
index da93bcbc74c1..ba769e082ad4 100644
--- a/arch/arm/mach-mvebu/Makefile
+++ b/arch/arm/mach-mvebu/Makefile
@@ -5,6 +5,6 @@ AFLAGS_coherency_ll.o := -Wa,-march=armv7-a
obj-y += system-controller.o
obj-$(CONFIG_MACH_ARMADA_370_XP) += armada-370-xp.o
-obj-$(CONFIG_ARCH_MVEBU) += addr-map.o coherency.o coherency_ll.o pmsu.o irq-armada-370-xp.o
+obj-$(CONFIG_ARCH_MVEBU) += coherency.o coherency_ll.o pmsu.o irq-armada-370-xp.o
obj-$(CONFIG_SMP) += platsmp.o headsmp.o
obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
diff --git a/arch/arm/mach-mvebu/addr-map.c b/arch/arm/mach-mvebu/addr-map.c
deleted file mode 100644
index ab9b3bd4fef5..000000000000
--- a/arch/arm/mach-mvebu/addr-map.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * Address map functions for Marvell 370 / XP SoCs
- *
- * Copyright (C) 2012 Marvell
- *
- * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/mbus.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <plat/addr-map.h>
-
-/*
- * Generic Address Decode Windows bit settings
- */
-#define ARMADA_XP_TARGET_DEV_BUS 1
-#define ARMADA_XP_ATTR_DEV_BOOTROM 0x1D
-#define ARMADA_XP_TARGET_ETH1 3
-#define ARMADA_XP_TARGET_PCIE_0_2 4
-#define ARMADA_XP_TARGET_ETH0 7
-#define ARMADA_XP_TARGET_PCIE_1_3 8
-
-#define ARMADA_370_TARGET_DEV_BUS 1
-#define ARMADA_370_ATTR_DEV_BOOTROM 0x1D
-#define ARMADA_370_TARGET_PCIE_0 4
-#define ARMADA_370_TARGET_PCIE_1 8
-
-#define ARMADA_WINDOW_8_PLUS_OFFSET 0x90
-#define ARMADA_SDRAM_ADDR_DECODING_OFFSET 0x180
-
-static const struct __initdata orion_addr_map_info
-armada_xp_addr_map_info[] = {
- /*
- * Window for the BootROM, needed for SMP on Armada XP
- */
- { 0, 0xfff00000, SZ_1M, ARMADA_XP_TARGET_DEV_BUS,
- ARMADA_XP_ATTR_DEV_BOOTROM, -1 },
- /* End marker */
- { -1, 0, 0, 0, 0, 0 },
-};
-
-static const struct __initdata orion_addr_map_info
-armada_370_addr_map_info[] = {
- /* End marker */
- { -1, 0, 0, 0, 0, 0 },
-};
-
-static struct of_device_id of_addr_decoding_controller_table[] = {
- { .compatible = "marvell,armada-addr-decoding-controller" },
- { /* end of list */ },
-};
-
-static void __iomem *
-armada_cfg_base(const struct orion_addr_map_cfg *cfg, int win)
-{
- unsigned int offset;
-
- /* The register layout is a bit annoying and the below code
- * tries to cope with it.
- * - At offset 0x0, there are the registers for the first 8
- * windows, with 4 registers of 32 bits per window (ctrl,
- * base, remap low, remap high)
- * - Then at offset 0x80, there is a hole of 0x10 bytes for
- * the internal registers base address and internal units
- * sync barrier register.
- * - Then at offset 0x90, there the registers for 12
- * windows, with only 2 registers of 32 bits per window
- * (ctrl, base).
- */
- if (win < 8)
- offset = (win << 4);
- else
- offset = ARMADA_WINDOW_8_PLUS_OFFSET + ((win - 8) << 3);
-
- return cfg->bridge_virt_base + offset;
-}
-
-static struct __initdata orion_addr_map_cfg addr_map_cfg = {
- .num_wins = 20,
- .remappable_wins = 8,
- .win_cfg_base = armada_cfg_base,
-};
-
-static int __init armada_setup_cpu_mbus(void)
-{
- struct device_node *np;
- void __iomem *mbus_unit_addr_decoding_base;
- void __iomem *sdram_addr_decoding_base;
-
- np = of_find_matching_node(NULL, of_addr_decoding_controller_table);
- if (!np)
- return -ENODEV;
-
- mbus_unit_addr_decoding_base = of_iomap(np, 0);
- BUG_ON(!mbus_unit_addr_decoding_base);
-
- sdram_addr_decoding_base =
- mbus_unit_addr_decoding_base +
- ARMADA_SDRAM_ADDR_DECODING_OFFSET;
-
- addr_map_cfg.bridge_virt_base = mbus_unit_addr_decoding_base;
-
- if (of_find_compatible_node(NULL, NULL, "marvell,coherency-fabric"))
- addr_map_cfg.hw_io_coherency = 1;
-
- /*
- * Disable, clear and configure windows.
- */
- if (of_machine_is_compatible("marvell,armadaxp"))
- orion_config_wins(&addr_map_cfg, armada_xp_addr_map_info);
- else if (of_machine_is_compatible("marvell,armada370"))
- orion_config_wins(&addr_map_cfg, armada_370_addr_map_info);
- else {
- pr_err("Unsupported SoC\n");
- return -EINVAL;
- }
-
- /*
- * Setup MBUS dram target info.
- */
- orion_setup_cpu_mbus_target(&addr_map_cfg,
- sdram_addr_decoding_base);
- return 0;
-}
-
-/* Using a early_initcall is needed so that this initialization gets
- * done before the SMP initialization, which requires the BootROM to
- * be remapped. */
-early_initcall(armada_setup_cpu_mbus);
diff --git a/arch/arm/mach-mvebu/armada-370-xp.c b/arch/arm/mach-mvebu/armada-370-xp.c
index a5ea616d6d12..12d3655830d1 100644
--- a/arch/arm/mach-mvebu/armada-370-xp.c
+++ b/arch/arm/mach-mvebu/armada-370-xp.c
@@ -19,6 +19,7 @@
#include <linux/time-armada-370-xp.h>
#include <linux/clk/mvebu.h>
#include <linux/dma-mapping.h>
+#include <linux/mbus.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
@@ -48,12 +49,29 @@ void __init armada_370_xp_timer_and_clk_init(void)
void __init armada_370_xp_init_early(void)
{
+ char *mbus_soc_name;
+
/*
* Some Armada 370/XP devices allocate their coherent buffers
* from atomic context. Increase size of atomic coherent pool
* to make sure such the allocations won't fail.
*/
init_dma_coherent_pool_size(SZ_1M);
+
+ /*
+ * 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";
+
+ mvebu_mbus_init(mbus_soc_name,
+ ARMADA_370_XP_MBUS_WINS_BASE,
+ ARMADA_370_XP_MBUS_WINS_SIZE,
+ ARMADA_370_XP_SDRAM_WINS_BASE,
+ ARMADA_370_XP_SDRAM_WINS_SIZE);
}
static void __init armada_370_xp_dt_init(void)
diff --git a/arch/arm/mach-mvebu/armada-370-xp.h b/arch/arm/mach-mvebu/armada-370-xp.h
index c6a7d74fddfe..2070e1b4f342 100644
--- a/arch/arm/mach-mvebu/armada-370-xp.h
+++ b/arch/arm/mach-mvebu/armada-370-xp.h
@@ -16,9 +16,15 @@
#define __MACH_ARMADA_370_XP_H
#define ARMADA_370_XP_REGS_PHYS_BASE 0xd0000000
-#define ARMADA_370_XP_REGS_VIRT_BASE IOMEM(0xfeb00000)
+#define ARMADA_370_XP_REGS_VIRT_BASE IOMEM(0xfec00000)
#define ARMADA_370_XP_REGS_SIZE SZ_1M
+/* 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>
diff --git a/arch/arm/mach-mvebu/platsmp.c b/arch/arm/mach-mvebu/platsmp.c
index fe16aaf7c19c..875ea748391c 100644
--- a/arch/arm/mach-mvebu/platsmp.c
+++ b/arch/arm/mach-mvebu/platsmp.c
@@ -21,6 +21,7 @@
#include <linux/smp.h>
#include <linux/clk.h>
#include <linux/of.h>
+#include <linux/mbus.h>
#include <asm/cacheflush.h>
#include <asm/smp_plat.h>
#include "common.h"
@@ -109,6 +110,7 @@ void __init armada_xp_smp_prepare_cpus(unsigned int max_cpus)
set_secondary_cpus_clock();
flush_cache_all();
set_cpu_coherent(cpu_logical_map(smp_processor_id()), 0);
+ mvebu_mbus_add_window("bootrom", 0xfff00000, SZ_1M);
}
struct smp_operations armada_xp_smp_ops __initdata = {