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

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);
}