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arm/imx21: add kbuild support for the Freescale i.MX21

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* adds Kconfig variables
* specifies different physical address for i.MX21 because of the
  different memory layouts
* disables support for UART5/UART6 in the i.MX serial driver
  (the i.MX21 doesn't have those modules)

Based on code from "Martin Fuzzey" <mfuzzey@gmail.com>

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Holger Schurig 2009-01-26 16:34:52 +01:00 committed by Sascha Hauer
parent ccfe30a7c8
commit 5512e88f3a
5 changed files with 31 additions and 3 deletions
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13
arch/arm/mach-mx2/Kconfig
View file

@ -1,12 +1,25 @@
comment "MX2 family CPU support"
depends on ARCH_MX2
choice
prompt "MX2 Type"
depends on ARCH_MX2
default MACH_MX21
config MACH_MX21
bool "i.MX21 support"
depends on ARCH_MX2
help
This enables support for Freescale's MX2 based i.MX21 processor.
config MACH_MX27
bool "i.MX27 support"
depends on ARCH_MX2
help
This enables support for Freescale's MX2 based i.MX27 processor.
endchoice
comment "MX2 Platforms"
depends on ARCH_MX2

10
arch/arm/mach-mx2/Makefile.boot
View file

@ -1,3 +1,7 @@
zreladdr-y := 0xA0008000
params_phys-y := 0xA0000100
initrd_phys-y := 0xA0800000
zreladdr-$(CONFIG_MACH_MX21) := 0xC0008000
params_phys-$(CONFIG_MACH_MX21) := 0xC0000100
initrd_phys-$(CONFIG_MACH_MX21) := 0xC0800000
zreladdr-$(CONFIG_MACH_MX27) := 0xA0008000
params_phys-$(CONFIG_MACH_MX27) := 0xA0000100
initrd_phys-$(CONFIG_MACH_MX27) := 0xA0800000

2
arch/arm/mach-mx2/serial.c
View file

@ -99,6 +99,7 @@ struct platform_device mxc_uart_device3 = {
.num_resources = ARRAY_SIZE(uart3),
};
#ifdef CONFIG_MACH_MX27
static struct resource uart4[] = {
{
.start = UART5_BASE_ADDR,
@ -136,3 +137,4 @@ struct platform_device mxc_uart_device5 = {
.resource = uart5,
.num_resources = ARRAY_SIZE(uart5),
};
#endif

5
arch/arm/plat-mxc/include/mach/memory.h
View file

@ -14,7 +14,12 @@
#if defined CONFIG_ARCH_MX1
#define PHYS_OFFSET UL(0x08000000)
#elif defined CONFIG_ARCH_MX2
#ifdef CONFIG_MACH_MX21
#define PHYS_OFFSET UL(0xC0000000)
#endif
#ifdef CONFIG_MACH_MX27
#define PHYS_OFFSET UL(0xA0000000)
#endif
#elif defined CONFIG_ARCH_MX3
#define PHYS_OFFSET UL(0x80000000)
#endif

4
arch/arm/plat-mxc/include/mach/mxc.h
View file

@ -29,6 +29,10 @@
# define cpu_is_mx31() (0)
#endif
#ifndef CONFIG_MACH_MX21
# define cpu_is_mx21() (0)
#endif
#ifndef CONFIG_MACH_MX27
# define cpu_is_mx27() (0)
#endif