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arm: mach-dove: convert to use mvebu-mbus driver

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This commit migrates the mach-dove platforms to use the mvebu-mbus
driver and therefore removes the Dove-specific addr-map code.

The dove_init_early() function now initializes the mvebu-mbus driver
by calling mvebu_mbus_init().

The address decoding windows are now registered in the
dove_setup_cpu_wins() function. It is worth noting that the four PCIe
address decoding windows will ultimately no longer have to be
registered here: it will be done automatically by the PCIe driver once
Dove has been migrated to use the upcoming mvebu PCIe driver.

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>
This commit is contained in:
Thomas Petazzoni 2013-03-21 17:59:17 +01:00 committed by Jason Cooper
parent 5cc0673a67
commit 7d55490277
8 changed files with 47 additions and 130 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/Kconfig
View File

@ -562,6 +562,7 @@ config ARCH_DOVE
select PINCTRL_DOVE
select PLAT_ORION_LEGACY
select USB_ARCH_HAS_EHCI
select MVEBU_MBUS
help
Support for the Marvell Dove SoC 88AP510

2
arch/arm/mach-dove/Makefile
View File

@ -1,4 +1,4 @@
obj-y += common.o addr-map.o irq.o
obj-y += common.o irq.o
obj-$(CONFIG_DOVE_LEGACY) += mpp.o
obj-$(CONFIG_PCI) += pcie.o
obj-$(CONFIG_MACH_DOVE_DB) += dove-db-setup.o

125
arch/arm/mach-dove/addr-map.c
View File

@ -1,125 +0,0 @@
/*
* arch/arm/mach-dove/addr-map.c
*
* Address map functions for Marvell Dove 88AP510 SoC
*
* 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 <asm/mach/arch.h>
#include <asm/setup.h>
#include <mach/dove.h>
#include <plat/addr-map.h>
#include "common.h"
/*
* Generic Address Decode Windows bit settings
*/
#define TARGET_DDR 0x0
#define TARGET_BOOTROM 0x1
#define TARGET_CESA 0x3
#define TARGET_PCIE0 0x4
#define TARGET_PCIE1 0x8
#define TARGET_SCRATCHPAD 0xd
#define ATTR_CESA 0x01
#define ATTR_BOOTROM 0xfd
#define ATTR_DEV_SPI0_ROM 0xfe
#define ATTR_DEV_SPI1_ROM 0xfb
#define ATTR_PCIE_IO 0xe0
#define ATTR_PCIE_MEM 0xe8
#define ATTR_SCRATCHPAD 0x0
static inline void __iomem *ddr_map_sc(int i)
{
return (void __iomem *)(DOVE_MC_VIRT_BASE + 0x100 + ((i) << 4));
}
/*
* Description of the windows needed by the platform code
*/
static struct __initdata orion_addr_map_cfg addr_map_cfg = {
.num_wins = 8,
.remappable_wins = 4,
.bridge_virt_base = BRIDGE_VIRT_BASE,
};
static const struct __initdata orion_addr_map_info addr_map_info[] = {
/*
* Windows for PCIe IO+MEM space.
*/
{ 0, DOVE_PCIE0_IO_PHYS_BASE, DOVE_PCIE0_IO_SIZE,
TARGET_PCIE0, ATTR_PCIE_IO, DOVE_PCIE0_IO_BUS_BASE
},
{ 1, DOVE_PCIE1_IO_PHYS_BASE, DOVE_PCIE1_IO_SIZE,
TARGET_PCIE1, ATTR_PCIE_IO, DOVE_PCIE1_IO_BUS_BASE
},
{ 2, DOVE_PCIE0_MEM_PHYS_BASE, DOVE_PCIE0_MEM_SIZE,
TARGET_PCIE0, ATTR_PCIE_MEM, -1
},
{ 3, DOVE_PCIE1_MEM_PHYS_BASE, DOVE_PCIE1_MEM_SIZE,
TARGET_PCIE1, ATTR_PCIE_MEM, -1
},
/*
* Window for CESA engine.
*/
{ 4, DOVE_CESA_PHYS_BASE, DOVE_CESA_SIZE,
TARGET_CESA, ATTR_CESA, -1
},
/*
* Window to the BootROM for Standby and Sleep Resume
*/
{ 5, DOVE_BOOTROM_PHYS_BASE, DOVE_BOOTROM_SIZE,
TARGET_BOOTROM, ATTR_BOOTROM, -1
},
/*
* Window to the PMU Scratch Pad space
*/
{ 6, DOVE_SCRATCHPAD_PHYS_BASE, DOVE_SCRATCHPAD_SIZE,
TARGET_SCRATCHPAD, ATTR_SCRATCHPAD, -1
},
/* End marker */
{ -1, 0, 0, 0, 0, 0 }
};
void __init dove_setup_cpu_mbus(void)
{
int i;
int cs;
/*
* Disable, clear and configure windows.
*/
orion_config_wins(&addr_map_cfg, addr_map_info);
/*
* Setup MBUS dram target info.
*/
orion_mbus_dram_info.mbus_dram_target_id = TARGET_DDR;
for (i = 0, cs = 0; i < 2; i++) {
u32 map = readl(ddr_map_sc(i));
/*
* Chip select enabled?
*/
if (map & 1) {
struct mbus_dram_window *w;
w = &orion_mbus_dram_info.cs[cs++];
w->cs_index = i;
w->mbus_attr = 0; /* CS address decoding done inside */
/* the DDR controller, no need to */
/* provide attributes */
w->base = map & 0xff800000;
w->size = 0x100000 << (((map & 0x000f0000) >> 16) - 4);
}
}
orion_mbus_dram_info.num_cs = cs;
}

2
arch/arm/mach-dove/board-dt.c
View File

@ -64,7 +64,7 @@ static void __init dove_dt_init(void)
#ifdef CONFIG_CACHE_TAUROS2
tauros2_init(0);
#endif
dove_setup_cpu_mbus();
dove_setup_cpu_wins();
/* Setup root of clk tree */
dove_of_clk_init();

39
arch/arm/mach-dove/common.c
View File

@ -224,6 +224,9 @@ void __init dove_i2c_init(void)
void __init dove_init_early(void)
{
orion_time_set_base(TIMER_VIRT_BASE);
mvebu_mbus_init("marvell,dove-mbus",
BRIDGE_WINS_BASE, BRIDGE_WINS_SZ,
DOVE_MC_WINS_BASE, DOVE_MC_WINS_SZ);
}
static int __init dove_find_tclk(void)
@ -326,6 +329,40 @@ void __init dove_sdio1_init(void)
platform_device_register(&dove_sdio1);
}
void __init dove_setup_cpu_wins(void)
{
/*
* The PCIe windows will no longer be statically allocated
* here once Dove is migrated to the pci-mvebu driver.
*/
mvebu_mbus_add_window_remap_flags("pcie0.0",
DOVE_PCIE0_IO_PHYS_BASE,
DOVE_PCIE0_IO_SIZE,
DOVE_PCIE0_IO_BUS_BASE,
MVEBU_MBUS_PCI_IO);
mvebu_mbus_add_window_remap_flags("pcie1.0",
DOVE_PCIE1_IO_PHYS_BASE,
DOVE_PCIE1_IO_SIZE,
DOVE_PCIE1_IO_BUS_BASE,
MVEBU_MBUS_PCI_IO);
mvebu_mbus_add_window_remap_flags("pcie0.0",
DOVE_PCIE0_MEM_PHYS_BASE,
DOVE_PCIE0_MEM_SIZE,
MVEBU_MBUS_NO_REMAP,
MVEBU_MBUS_PCI_MEM);
mvebu_mbus_add_window_remap_flags("pcie1.0",
DOVE_PCIE1_MEM_PHYS_BASE,
DOVE_PCIE1_MEM_SIZE,
MVEBU_MBUS_NO_REMAP,
MVEBU_MBUS_PCI_MEM);
mvebu_mbus_add_window("cesa", DOVE_CESA_PHYS_BASE,
DOVE_CESA_SIZE);
mvebu_mbus_add_window("bootrom", DOVE_BOOTROM_PHYS_BASE,
DOVE_BOOTROM_SIZE);
mvebu_mbus_add_window("scratchpad", DOVE_SCRATCHPAD_PHYS_BASE,
DOVE_SCRATCHPAD_SIZE);
}
void __init dove_init(void)
{
pr_info("Dove 88AP510 SoC, TCLK = %d MHz.\n",
@ -334,7 +371,7 @@ void __init dove_init(void)
#ifdef CONFIG_CACHE_TAUROS2
tauros2_init(0);
#endif
dove_setup_cpu_mbus();
dove_setup_cpu_wins();
/* Setup root of clk tree */
dove_clk_init();

2
arch/arm/mach-dove/common.h
View File

@ -23,7 +23,7 @@ void dove_map_io(void);
void dove_init(void);
void dove_init_early(void);
void dove_init_irq(void);
void dove_setup_cpu_mbus(void);
void dove_setup_cpu_wins(void);
void dove_ge00_init(struct mv643xx_eth_platform_data *eth_data);
void dove_sata_init(struct mv_sata_platform_data *sata_data);
#ifdef CONFIG_PCI

5
arch/arm/mach-dove/include/mach/dove.h
View File

@ -77,6 +77,8 @@
/* North-South Bridge */
#define BRIDGE_VIRT_BASE (DOVE_SB_REGS_VIRT_BASE + 0x20000)
#define BRIDGE_PHYS_BASE (DOVE_SB_REGS_PHYS_BASE + 0x20000)
#define BRIDGE_WINS_BASE (BRIDGE_PHYS_BASE)
#define BRIDGE_WINS_SZ (0x80)
/* Cryptographic Engine */
#define DOVE_CRYPT_PHYS_BASE (DOVE_SB_REGS_PHYS_BASE + 0x30000)
@ -168,6 +170,9 @@
#define DOVE_SSP_CLOCK_ENABLE (1 << 1)
#define DOVE_SSP_BPB_CLOCK_SRC_SSP (1 << 11)
/* Memory Controller */
#define DOVE_MC_PHYS_BASE (DOVE_NB_REGS_PHYS_BASE + 0x00000)
#define DOVE_MC_WINS_BASE (DOVE_MC_PHYS_BASE + 0x100)
#define DOVE_MC_WINS_SZ (0x8)
#define DOVE_MC_VIRT_BASE (DOVE_NB_REGS_VIRT_BASE + 0x00000)
/* LCD Controller */

1
arch/arm/plat-orion/Makefile
View File

@ -3,7 +3,6 @@
#
ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include
obj-$(CONFIG_ARCH_DOVE) += addr-map.o
obj-$(CONFIG_ARCH_ORION5X) += addr-map.o
obj-$(CONFIG_ARCH_MV78XX0) += addr-map.o