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[ARM] 3999/1: RX3715: suspend to RAM support

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The RX3715 is similar to the H1940 in the way
that suspend to RAM works, so we can use most
of the extant support for the H1940 with only
a few modifictions

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Ben Dooks 2006-12-07 20:47:58 +01:00 committed by Russell King
parent b2eba6bb44
commit bbf6f2809d
5 changed files with 32 additions and 2 deletions
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8
arch/arm/mach-s3c2410/Kconfig
View File

@ -41,9 +41,16 @@ config BAST_PC104_IRQ
Say Y here to enable the PC104 IRQ routing on the
Simtec BAST (EB2410ITX)
config PM_H1940
bool
depends on PM
help
Internal node for H1940 and related PM
config ARCH_H1940
bool "IPAQ H1940"
select CPU_S3C2410
select PM_H1940
help
Say Y here if you are using the HP IPAQ H1940
@ -115,6 +122,7 @@ config MACH_VR1000
config MACH_RX3715
bool "HP iPAQ rx3715"
select CPU_S3C2440
select PM_H1940
help
Say Y here if you are using the HP iPAQ rx3715.

3
arch/arm/mach-s3c2410/Makefile
View File

@ -31,6 +31,7 @@ obj-$(CONFIG_CPU_S3C2410_DMA) += s3c2410-dma.o
obj-$(CONFIG_PM) += pm.o sleep.o
obj-$(CONFIG_PM_SIMTEC) += pm-simtec.o
obj-$(CONFIG_PM_H1940) += pm-h1940.o
# S3C2412 support
obj-$(CONFIG_CPU_S3C2412) += s3c2412.o
@ -77,7 +78,7 @@ obj-$(CONFIG_MACH_AML_M5900) += mach-amlm5900.o
obj-$(CONFIG_MACH_ANUBIS) += mach-anubis.o
obj-$(CONFIG_MACH_OSIRIS) += mach-osiris.o
obj-$(CONFIG_ARCH_BAST) += mach-bast.o usb-simtec.o
obj-$(CONFIG_ARCH_H1940) += mach-h1940.o pm-h1940.o
obj-$(CONFIG_ARCH_H1940) += mach-h1940.o
obj-$(CONFIG_MACH_N30) += mach-n30.o
obj-$(CONFIG_ARCH_SMDK2410) += mach-smdk2410.o
obj-$(CONFIG_MACH_SMDK2413) += mach-smdk2413.o

3
arch/arm/mach-s3c2410/mach-rx3715.c
View File

@ -42,6 +42,7 @@
#include <asm/arch/regs-gpio.h>
#include <asm/arch/regs-lcd.h>
#include <asm/arch/h1940.h>
#include <asm/arch/nand.h>
#include <asm/arch/fb.h>
@ -224,7 +225,9 @@ static void __init rx3715_init_irq(void)
static void __init rx3715_init_machine(void)
{
memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
s3c2410_pm_init();
s3c24xx_fb_set_platdata(&rx3715_lcdcfg);
}

16
arch/arm/mach-s3c2410/s3c2410-pm.c
View File

@ -66,6 +66,22 @@ static void s3c2410_pm_prepare(void)
__raw_writel(calc, phys_to_virt(H1940_SUSPEND_CHECKSUM));
}
/* the RX3715 uses similar code and the same H1940 and the
* same offsets for resume and checksum pointers */
if (machine_is_rx3715()) {
void *base = phys_to_virt(H1940_SUSPEND_CHECK);
unsigned long ptr;
unsigned long calc = 0;
/* generate check for the bootloader to check on resume */
for (ptr = 0; ptr < 0x40000; ptr += 0x4)
calc += __raw_readl(base+ptr);
__raw_writel(calc, phys_to_virt(H1940_SUSPEND_CHECKSUM));
}
if ( machine_is_aml_m5900() )
s3c2410_gpio_setpin(S3C2410_GPF2, 1);

4
arch/arm/mm/mmu.c
View File

@ -619,7 +619,9 @@ void __init reserve_node_zero(pg_data_t *pgdat)
if (machine_is_p720t())
res_size = 0x00014000;
if (machine_is_h1940()) {
/* H1940 and RX3715 need to reserve this for suspend */
if (machine_is_h1940() || machine_is_rx3715()) {
reserve_bootmem_node(pgdat, 0x30003000, 0x1000);
reserve_bootmem_node(pgdat, 0x30081000, 0x1000);
}