Commit 95b80e0a authored by Thomas Petazzoni's avatar Thomas Petazzoni Committed by Jason Cooper

arm: mach-mv78xx0: convert to use the mvebu-mbus driver

This commit convers the mach-mv78xx0 sub-architecture to use the
mvebu-mbus driver. We simply have to call mvebu_mbus_init() in the
->init_early() function, and modify the PCIe code so that it uses the
new functions provided by mvebu-mbus to create the needed PCIe
windows.
Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarJason Cooper <jason@lakedaemon.net>
parent 5d1190ea
......@@ -588,6 +588,7 @@ config ARCH_MV78XX0
select GENERIC_CLOCKEVENTS
select PCI
select PLAT_ORION_LEGACY
select MVEBU_MBUS
help
Support for the following Marvell MV78xx0 series SoCs:
MV781x0, MV782x0.
......
obj-y += common.o addr-map.o mpp.o irq.o pcie.o
obj-y += common.o mpp.o irq.o pcie.o
obj-$(CONFIG_MACH_DB78X00_BP) += db78x00-bp-setup.o
obj-$(CONFIG_MACH_RD78X00_MASA) += rd78x00-masa-setup.o
obj-$(CONFIG_MACH_TERASTATION_WXL) += buffalo-wxl-setup.o
/*
* arch/arm/mach-mv78xx0/addr-map.c
*
* Address map functions for Marvell MV78xx0 SoCs
*
* 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 <plat/addr-map.h>
#include <mach/mv78xx0.h>
#include "common.h"
/*
* Generic Address Decode Windows bit settings
*/
#define TARGET_DEV_BUS 1
#define TARGET_PCIE0 4
#define TARGET_PCIE1 8
#define TARGET_PCIE(i) ((i) ? TARGET_PCIE1 : TARGET_PCIE0)
#define ATTR_DEV_SPI_ROM 0x1f
#define ATTR_DEV_BOOT 0x2f
#define ATTR_DEV_CS3 0x37
#define ATTR_DEV_CS2 0x3b
#define ATTR_DEV_CS1 0x3d
#define ATTR_DEV_CS0 0x3e
#define ATTR_PCIE_IO(l) (0xf0 & ~(0x10 << (l)))
#define ATTR_PCIE_MEM(l) (0xf8 & ~(0x10 << (l)))
/*
* CPU Address Decode Windows registers
*/
#define WIN0_OFF(n) (BRIDGE_VIRT_BASE + 0x0000 + ((n) << 4))
#define WIN8_OFF(n) (BRIDGE_VIRT_BASE + 0x0900 + (((n) - 8) << 4))
static void __init __iomem *win_cfg_base(const struct orion_addr_map_cfg *cfg, int win)
{
/*
* Find the control register base address for this window.
*
* BRIDGE_VIRT_BASE points to the right (CPU0's or CPU1's)
* MBUS bridge depending on which CPU core we're running on,
* so we don't need to take that into account here.
*/
return (win < 8) ? WIN0_OFF(win) : WIN8_OFF(win);
}
/*
* Description of the windows needed by the platform code
*/
static struct orion_addr_map_cfg addr_map_cfg __initdata = {
.num_wins = 14,
.remappable_wins = 8,
.win_cfg_base = win_cfg_base,
};
void __init mv78xx0_setup_cpu_mbus(void)
{
/*
* Disable, clear and configure windows.
*/
orion_config_wins(&addr_map_cfg, NULL);
/*
* Setup MBUS dram target info.
*/
if (mv78xx0_core_index() == 0)
orion_setup_cpu_mbus_target(&addr_map_cfg,
(void __iomem *) DDR_WINDOW_CPU0_BASE);
else
orion_setup_cpu_mbus_target(&addr_map_cfg,
(void __iomem *) DDR_WINDOW_CPU1_BASE);
}
void __init mv78xx0_setup_pcie_io_win(int window, u32 base, u32 size,
int maj, int min)
{
orion_setup_cpu_win(&addr_map_cfg, window, base, size,
TARGET_PCIE(maj), ATTR_PCIE_IO(min), 0);
}
void __init mv78xx0_setup_pcie_mem_win(int window, u32 base, u32 size,
int maj, int min)
{
orion_setup_cpu_win(&addr_map_cfg, window, base, size,
TARGET_PCIE(maj), ATTR_PCIE_MEM(min), -1);
}
......@@ -334,6 +334,14 @@ void __init mv78xx0_uart3_init(void)
void __init mv78xx0_init_early(void)
{
orion_time_set_base(TIMER_VIRT_BASE);
if (mv78xx0_core_index() == 0)
mvebu_mbus_init("marvell,mv78xx0-mbus",
BRIDGE_WINS_CPU0_BASE, BRIDGE_WINS_SZ,
DDR_WINDOW_CPU0_BASE, DDR_WINDOW_CPU_SZ);
else
mvebu_mbus_init("marvell,mv78xx0-mbus",
BRIDGE_WINS_CPU1_BASE, BRIDGE_WINS_SZ,
DDR_WINDOW_CPU1_BASE, DDR_WINDOW_CPU_SZ);
}
void __init_refok mv78xx0_timer_init(void)
......@@ -397,8 +405,6 @@ void __init mv78xx0_init(void)
printk("HCLK = %dMHz, ", (hclk + 499999) / 1000000);
printk("TCLK = %dMHz\n", (get_tclk() + 499999) / 1000000);
mv78xx0_setup_cpu_mbus();
#ifdef CONFIG_CACHE_FEROCEON_L2
feroceon_l2_init(is_l2_writethrough());
#endif
......
......@@ -60,13 +60,18 @@
*/
#define BRIDGE_VIRT_BASE (MV78XX0_CORE_REGS_VIRT_BASE)
#define BRIDGE_PHYS_BASE (MV78XX0_CORE_REGS_PHYS_BASE)
#define BRIDGE_WINS_CPU0_BASE (MV78XX0_CORE0_REGS_PHYS_BASE)
#define BRIDGE_WINS_CPU1_BASE (MV78XX0_CORE1_REGS_PHYS_BASE)
#define BRIDGE_WINS_SZ (0xA000)
/*
* Register Map
*/
#define DDR_VIRT_BASE (MV78XX0_REGS_VIRT_BASE + 0x00000)
#define DDR_WINDOW_CPU0_BASE (DDR_VIRT_BASE + 0x1500)
#define DDR_WINDOW_CPU1_BASE (DDR_VIRT_BASE + 0x1570)
#define DDR_PHYS_BASE (MV78XX0_REGS_PHYS_BASE + 0x00000)
#define DDR_WINDOW_CPU0_BASE (DDR_PHYS_BASE + 0x1500)
#define DDR_WINDOW_CPU1_BASE (DDR_PHYS_BASE + 0x1570)
#define DDR_WINDOW_CPU_SZ (0x20)
#define DEV_BUS_PHYS_BASE (MV78XX0_REGS_PHYS_BASE + 0x10000)
#define DEV_BUS_VIRT_BASE (MV78XX0_REGS_VIRT_BASE + 0x10000)
......
......@@ -10,11 +10,11 @@
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/mbus.h>
#include <video/vga.h>
#include <asm/irq.h>
#include <asm/mach/pci.h>
#include <plat/pcie.h>
#include <plat/addr-map.h>
#include <mach/mv78xx0.h>
#include "common.h"
......@@ -54,7 +54,6 @@ static void __init mv78xx0_pcie_preinit(void)
int i;
u32 size_each;
u32 start;
int win = 0;
pcie_io_space.name = "PCIe I/O Space";
pcie_io_space.start = MV78XX0_PCIE_IO_PHYS_BASE(0);
......@@ -72,6 +71,7 @@ static void __init mv78xx0_pcie_preinit(void)
start = MV78XX0_PCIE_MEM_PHYS_BASE;
for (i = 0; i < num_pcie_ports; i++) {
struct pcie_port *pp = pcie_port + i;
char winname[MVEBU_MBUS_MAX_WINNAME_SZ];
snprintf(pp->mem_space_name, sizeof(pp->mem_space_name),
"PCIe %d.%d MEM", pp->maj, pp->min);
......@@ -85,12 +85,17 @@ static void __init mv78xx0_pcie_preinit(void)
if (request_resource(&iomem_resource, &pp->res))
panic("can't allocate PCIe MEM sub-space");
mv78xx0_setup_pcie_mem_win(win + i + 8, pp->res.start,
resource_size(&pp->res),
snprintf(winname, sizeof(winname), "pcie%d.%d",
pp->maj, pp->min);
mv78xx0_setup_pcie_io_win(win + i, i * SZ_64K, SZ_64K,
pp->maj, pp->min);
mvebu_mbus_add_window_remap_flags(winname,
pp->res.start,
resource_size(&pp->res),
MVEBU_MBUS_NO_REMAP,
MVEBU_MBUS_PCI_MEM);
mvebu_mbus_add_window_remap_flags(winname,
i * SZ_64K, SZ_64K,
0, MVEBU_MBUS_PCI_IO);
}
}
......
......@@ -3,8 +3,6 @@
#
ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include
obj-$(CONFIG_ARCH_MV78XX0) += addr-map.o
orion-gpio-$(CONFIG_GENERIC_GPIO) += gpio.o
obj-$(CONFIG_PLAT_ORION_LEGACY) += irq.o pcie.o time.o common.o mpp.o
obj-$(CONFIG_PLAT_ORION_LEGACY) += $(orion-gpio-y)
......@@ -43,6 +43,9 @@ struct mbus_dram_target_info
*/
#define MVEBU_MBUS_NO_REMAP (0xffffffff)
/* Maximum size of a mbus window name */
#define MVEBU_MBUS_MAX_WINNAME_SZ 32
/*
* The Marvell mbus is to be found only on SOCs from the Orion family
* at the moment. Provide a dummy stub for other architectures.
......
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