diff options
Diffstat (limited to 'arch/arm/mach-mvebu')
| -rw-r--r-- | arch/arm/mach-mvebu/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/addr-map.c | 137 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/armada-370-xp.c | 18 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/armada-370-xp.h | 8 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/platsmp.c | 2 |
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 = { |