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ARM: mach-shmobile: r8a7779 map_io and init_early update

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Update the r8a7779 SoC and the Marzen board to make use of
the functions r8a7779_map_io() and r8a7779_add_early_devices().

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
This commit is contained in:
Magnus Damm 2012-02-29 21:37:43 +09:00 committed by Rafael J. Wysocki
parent d3ab722148
commit 3e353b875b
3 changed files with 42 additions and 46 deletions
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48
arch/arm/mach-shmobile/board-marzen.c
View File

@ -33,7 +33,6 @@
#include <mach/common.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <asm/hardware/gic.h>
#include <asm/traps.h>
@ -72,49 +71,6 @@ static struct platform_device *marzen_devices[] __initdata = {
&eth_device,
};
static struct map_desc marzen_io_desc[] __initdata = {
/* 2M entity map for 0xf0000000 (MPCORE) */
{
.virtual = 0xf0000000,
.pfn = __phys_to_pfn(0xf0000000),
.length = SZ_2M,
.type = MT_DEVICE_NONSHARED
},
/* 16M entity map for 0xfexxxxxx (DMAC-S/HPBREG/INTC2/LRAM/DBSC) */
{
.virtual = 0xfe000000,
.pfn = __phys_to_pfn(0xfe000000),
.length = SZ_16M,
.type = MT_DEVICE_NONSHARED
},
};
static void __init marzen_map_io(void)
{
iotable_init(marzen_io_desc, ARRAY_SIZE(marzen_io_desc));
}
static void __init marzen_init_early(void)
{
r8a7779_add_early_devices();
/* Early serial console setup is not included here due to
* memory map collisions. The SCIF serial ports in r8a7779
* are difficult to entity map 1:1 due to collision with the
* virtual memory range used by the coherent DMA code on ARM.
*
* Anyone wanting to debug early can remove UPF_IOREMAP from
* the sh-sci serial console platform data, adjust mapbase
* to a static M:N virt:phys mapping that needs to be added to
* the mappings passed with iotable_init() above.
*
* Then add a call to shmobile_setup_console() from this function.
*
* As a final step pass earlyprint=sh-sci.2,115200 on the kernel
* command line.
*/
}
static void __init marzen_init(void)
{
r8a7779_pinmux_init();
@ -147,8 +103,8 @@ struct sys_timer marzen_timer = {
};
MACHINE_START(MARZEN, "marzen")
.map_io = marzen_map_io,
.init_early = marzen_init_early,
.map_io = r8a7779_map_io,
.init_early = r8a7779_add_early_devices,
.nr_irqs = NR_IRQS_LEGACY,
.init_irq = r8a7779_init_irq,
.handle_irq = gic_handle_irq,

1
arch/arm/mach-shmobile/include/mach/common.h
View File

@ -67,6 +67,7 @@ extern void r8a7740_clock_init(u8 md_ck);
extern void r8a7740_pinmux_init(void);
extern void r8a7779_init_irq(void);
extern void r8a7779_map_io(void);
extern void r8a7779_add_early_devices(void);
extern void r8a7779_add_standard_devices(void);
extern void r8a7779_clock_init(void);

39
arch/arm/mach-shmobile/setup-r8a7779.c
View File

@ -33,6 +33,29 @@
#include <mach/common.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
static struct map_desc r8a7779_io_desc[] __initdata = {
/* 2M entity map for 0xf0000000 (MPCORE) */
{
.virtual = 0xf0000000,
.pfn = __phys_to_pfn(0xf0000000),
.length = SZ_2M,
.type = MT_DEVICE_NONSHARED
},
/* 16M entity map for 0xfexxxxxx (DMAC-S/HPBREG/INTC2/LRAM/DBSC) */
{
.virtual = 0xfe000000,
.pfn = __phys_to_pfn(0xfe000000),
.length = SZ_16M,
.type = MT_DEVICE_NONSHARED
},
};
void __init r8a7779_map_io(void)
{
iotable_init(r8a7779_io_desc, ARRAY_SIZE(r8a7779_io_desc));
}
static struct plat_sci_port scif0_platform_data = {
.mapbase = 0xffe40000,
@ -236,4 +259,20 @@ void __init r8a7779_add_early_devices(void)
{
early_platform_add_devices(r8a7779_early_devices,
ARRAY_SIZE(r8a7779_early_devices));
/* Early serial console setup is not included here due to
* memory map collisions. The SCIF serial ports in r8a7779
* are difficult to entity map 1:1 due to collision with the
* virtual memory range used by the coherent DMA code on ARM.
*
* Anyone wanting to debug early can remove UPF_IOREMAP from
* the sh-sci serial console platform data, adjust mapbase
* to a static M:N virt:phys mapping that needs to be added to
* the mappings passed with iotable_init() above.
*
* Then add a call to shmobile_setup_console() from this function.
*
* As a final step pass earlyprint=sh-sci.2,115200 on the kernel
* command line in case of the marzen board.
*/
}