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[ARM] 4311/1: ixp4xx: add KIXRP435 platform

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Add Intel KIXRP435 Reference Platform based on IXP43x processor.
Fixed after review : access to cp15 removed in identification functions,
used access to global processor_id instead

Signed-off-by: Vladimir Barinov <vbarinov@ru.mvista.com>
Signed-off-by: Ruslan  Sushko <rsushko@ru.mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Ruslan V. Sushko 2007-04-06 15:00:31 +01:00 committed by Russell King
parent 25735d10ba
commit 45fba0846f
12 changed files with 106 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/configs/ixp4xx_defconfig
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@ -117,11 +117,13 @@ CONFIG_ARCH_ADI_COYOTE=y
CONFIG_ARCH_IXDP425=y
CONFIG_MACH_IXDPG425=y
CONFIG_MACH_IXDP465=y
CONFIG_MACH_KIXRP435=y
CONFIG_ARCH_IXCDP1100=y
CONFIG_ARCH_PRPMC1100=y
CONFIG_MACH_NAS100D=y
CONFIG_ARCH_IXDP4XX=y
CONFIG_CPU_IXP46X=y
CONFIG_CPU_IXP43X=y
# CONFIG_MACH_GTWX5715 is not set
#

13
arch/arm/mach-ixp4xx/Kconfig
View File

@ -62,6 +62,12 @@ config MACH_IXDP465
IXDP465 Development Platform (Also known as BMP).
For more information on this platform, see <file:Documentation/arm/IXP4xx>.
config MACH_KIXRP435
bool "KIXRP435"
help
Say 'Y' here if you want your kernel to support Intel's
KIXRP435 Reference Platform.
For more information on this platform, see <file:Documentation/arm/IXP4xx>.
#
# IXCDP1100 is the exact same HW as IXDP425, but with a different machine
@ -94,7 +100,7 @@ config MACH_NAS100D
#
config ARCH_IXDP4XX
bool
depends on ARCH_IXDP425 || MACH_IXDP465
depends on ARCH_IXDP425 || MACH_IXDP465 || MACH_KIXRP435
default y
#
@ -105,6 +111,11 @@ config CPU_IXP46X
depends on MACH_IXDP465
default y
config CPU_IXP43X
bool
depends on MACH_KIXRP435
default y
config MACH_GTWX5715
bool "Gemtek WX5715 (Linksys WRV54G)"
depends on ARCH_IXP4XX

4
arch/arm/mach-ixp4xx/common-pci.c
View File

@ -374,7 +374,7 @@ void __init ixp4xx_pci_preinit(void)
* Determine which PCI read method to use.
* Rev 0 IXP425 requires workaround.
*/
if (!(processor_id & 0xf) && !cpu_is_ixp46x()) {
if (!(processor_id & 0xf) && cpu_is_ixp42x()) {
printk("PCI: IXP42x A0 silicon detected - "
"PCI Non-Prefetch Workaround Enabled\n");
ixp4xx_pci_read = ixp4xx_pci_read_errata;
@ -480,7 +480,7 @@ int ixp4xx_setup(int nr, struct pci_sys_data *sys)
res[0].flags = IORESOURCE_IO;
res[1].name = "PCI Memory Space";
res[1].start = 0x48000000;
res[1].start = PCIBIOS_MIN_MEM;
#ifndef CONFIG_IXP4XX_INDIRECT_PCI
res[1].end = 0x4bffffff;
#else

6
arch/arm/mach-ixp4xx/common.c
View File

@ -192,7 +192,7 @@ static int ixp4xx_set_irq_type(unsigned int irq, unsigned int type)
static void ixp4xx_irq_mask(unsigned int irq)
{
if (cpu_is_ixp46x() && irq >= 32)
if ((cpu_is_ixp46x() || cpu_is_ixp43x()) && irq >= 32)
*IXP4XX_ICMR2 &= ~(1 << (irq - 32));
else
*IXP4XX_ICMR &= ~(1 << irq);
@ -215,7 +215,7 @@ static void ixp4xx_irq_unmask(unsigned int irq)
if (!(ixp4xx_irq_edge & (1 << irq)))
ixp4xx_irq_ack(irq);
if (cpu_is_ixp46x() && irq >= 32)
if ((cpu_is_ixp46x() || cpu_is_ixp43x()) && irq >= 32)
*IXP4XX_ICMR2 |= (1 << (irq - 32));
else
*IXP4XX_ICMR |= (1 << irq);
@ -239,7 +239,7 @@ void __init ixp4xx_init_irq(void)
/* Disable all interrupt */
*IXP4XX_ICMR = 0x0;
if (cpu_is_ixp46x()) {
if (cpu_is_ixp46x() || cpu_is_ixp43x()) {
/* Route upper 32 sources to IRQ instead of FIQ */
*IXP4XX_ICLR2 = 0x00;

2
arch/arm/mach-ixp4xx/ixdp425-pci.c
View File

@ -66,7 +66,7 @@ struct hw_pci ixdp425_pci __initdata = {
int __init ixdp425_pci_init(void)
{
if (machine_is_ixdp425() || machine_is_ixcdp1100() ||
machine_is_ixdp465())
machine_is_ixdp465() || machine_is_kixrp435())
pci_common_init(&ixdp425_pci);
return 0;
}

18
arch/arm/mach-ixp4xx/ixdp425-setup.c
View File

@ -115,6 +115,11 @@ static void __init ixdp425_init(void)
ixdp425_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
if (cpu_is_ixp43x()) {
ixdp425_uart.num_resources = 1;
ixdp425_uart_data[1].flags = 0;
}
platform_add_devices(ixdp425_devices, ARRAY_SIZE(ixdp425_devices));
}
@ -156,3 +161,16 @@ MACHINE_START(IXCDP1100, "Intel IXCDP1100 Development Platform")
.init_machine = ixdp425_init,
MACHINE_END
#endif
#ifdef CONFIG_MACH_KIXRP435
MACHINE_START(KIXRP435, "Intel KIXRP435 Reference Platform")
/* Maintainer: MontaVista Software, Inc. */
.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
.map_io = ixp4xx_map_io,
.init_irq = ixp4xx_init_irq,
.timer = &ixp4xx_timer,
.boot_params = 0x0100,
.init_machine = ixdp425_init,
MACHINE_END
#endif

28
arch/arm/mm/proc-xscale.S
View File

@ -584,6 +584,11 @@ cpu_ixp42x_name:
.asciz "XScale-IXP42x Family"
.size cpu_ixp42x_name, . - cpu_ixp42x_name
.type cpu_ixp43x_name, #object
cpu_ixp43x_name:
.asciz "XScale-IXP43x Family"
.size cpu_ixp43x_name, . - cpu_ixp43x_name
.type cpu_ixp46x_name, #object
cpu_ixp46x_name:
.asciz "XScale-IXP46x Family"
@ -843,6 +848,29 @@ __ixp42x_proc_info:
.long xscale_cache_fns
.size __ixp42x_proc_info, . - __ixp42x_proc_info
.type __ixp43x_proc_info, #object
__ixp43x_proc_info:
.long 0x69054040
.long 0xfffffff0
.long PMD_TYPE_SECT | \
PMD_SECT_BUFFERABLE | \
PMD_SECT_CACHEABLE | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
.long PMD_TYPE_SECT | \
PMD_SECT_AP_WRITE | \
PMD_SECT_AP_READ
b __xscale_setup
.long cpu_arch_name
.long cpu_elf_name
.long HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
.long cpu_ixp43x_name
.long xscale_processor_functions
.long v4wbi_tlb_fns
.long xscale_mc_user_fns
.long xscale_cache_fns
.size __ixp43x_proc_info, . - __ixp43x_proc_info
.type __ixp46x_proc_info, #object
__ixp46x_proc_info:
.long 0x69054200

4
include/asm-arm/arch-ixp4xx/entry-macro.S
View File

@ -31,9 +31,9 @@
1001:
/*
* IXP465 has an upper IRQ status register
* IXP465/IXP435 has an upper IRQ status register
*/
#if defined(CONFIG_CPU_IXP46X)
#if defined(CONFIG_CPU_IXP46X) || defined(CONFIG_CPU_IXP43X)
ldr \irqstat, =(IXP4XX_INTC_BASE_VIRT+IXP4XX_ICIP2_OFFSET)
ldr \irqstat, [\irqstat] @ get upper interrupts
mov \irqnr, #63

4
include/asm-arm/arch-ixp4xx/hardware.h
View File

@ -17,8 +17,8 @@
#ifndef __ASM_ARCH_HARDWARE_H__
#define __ASM_ARCH_HARDWARE_H__
#define PCIBIOS_MIN_IO 0x00001000
#define PCIBIOS_MIN_MEM 0x48000000
#define PCIBIOS_MIN_IO 0x00001000
#define PCIBIOS_MIN_MEM (cpu_is_ixp43x() ? 0x40000000 : 0x48000000)
/*
* We override the standard dma-mask routines for bouncing.

2
include/asm-arm/arch-ixp4xx/io.h
View File

@ -61,7 +61,7 @@ extern int ixp4xx_pci_write(u32 addr, u32 cmd, u32 data);
static inline void __iomem *
__ixp4xx_ioremap(unsigned long addr, size_t size, unsigned long flags)
{
if((addr < 0x48000000) || (addr > 0x4fffffff))
if((addr < PCIBIOS_MIN_MEM) || (addr > 0x4fffffff))
return __ioremap(addr, size, flags);
return (void *)addr;

6
include/asm-arm/arch-ixp4xx/irqs.h
View File

@ -62,10 +62,10 @@
/*
* Only first 32 sources are valid if running on IXP42x systems
*/
#ifndef CONFIG_CPU_IXP46X
#define NR_IRQS 32
#else
#if defined(CONFIG_CPU_IXP46X) || defined(CONFIG_CPU_IXP43X)
#define NR_IRQS 64
#else
#define NR_IRQS 32
#endif
#define XSCALE_PMU_IRQ (IRQ_IXP4XX_XSCALE_PMU)

36
include/asm-arm/arch-ixp4xx/ixp4xx-regs.h
View File

@ -607,15 +607,43 @@
#define DCMD_LENGTH 0x01fff /* length mask (max = 8K - 1) */
/* Processor id value in CP15 Register 0 */
#define IXP425_PROCESSOR_ID_VALUE 0x690541c0
#define IXP435_PROCESSOR_ID_VALUE 0x69054040
#define IXP465_PROCESSOR_ID_VALUE 0x69054200
#define IXP4XX_PROCESSOR_ID_MASK 0xfffffff0
#ifndef __ASSEMBLY__
static inline int cpu_is_ixp42x(void)
{
extern unsigned int processor_id;
if ((processor_id & IXP4XX_PROCESSOR_ID_MASK) ==
IXP425_PROCESSOR_ID_VALUE )
return 1;
return 0;
}
static inline int cpu_is_ixp43x(void)
{
#ifdef CONFIG_CPU_IXP43X
extern unsigned int processor_id;
if ((processor_id & IXP4XX_PROCESSOR_ID_MASK) ==
IXP435_PROCESSOR_ID_VALUE )
return 1;
#endif
return 0;
}
static inline int cpu_is_ixp46x(void)
{
#ifdef CONFIG_CPU_IXP46X
unsigned int processor_id;
extern unsigned int processor_id;
asm("mrc p15, 0, %0, cr0, cr0, 0;" : "=r"(processor_id) :);
if ((processor_id & 0xffffff00) == 0x69054200)
if ((processor_id & IXP4XX_PROCESSOR_ID_MASK) ==
IXP465_PROCESSOR_ID_VALUE )
return 1;
#endif
return 0;