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pcm037: Add MMU support 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2010-06-04 14:22:56 +02:00
parent f7c02aea7b
commit 9c827f121a
2 changed files with 33 additions and 0 deletions
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2
arch/arm/mach-imx/Kconfig
View File

@ -210,7 +210,9 @@ choice
config MACH_PCM037
bool "phyCORE-i.MX31"
select MACH_HAS_LOWLEVEL_INIT
select HAVE_MMU
select USB_ISP1504 if USB
select ARCH_HAS_L2X0
help
Say Y here if you are using Phytec's phyCORE-i.MX31 (pcm037) equipped
with a Freescale i.MX31 Processor

31
board/pcm037/pcm037.c
View File

@ -33,6 +33,7 @@
#include <asm/armlinux.h>
#include <mach/gpio.h>
#include <asm/io.h>
#include <asm/mmu.h>
#include <partition.h>
#include <asm/mach-types.h>
#include <mach/imx-nand.h>
@ -117,6 +118,7 @@ static struct device_d sdram1_dev = {
struct imx_nand_platform_data nand_info = {
.width = 1,
.hw_ecc = 1,
.flash_bbt = 1,
};
static struct device_d nand_dev = {
@ -226,8 +228,37 @@ static void pcm037_usb_init(void)
}
#endif
#ifdef CONFIG_MMU
static void pcm037_mmu_init(void)
{
mmu_init();
arm_create_section(0x80000000, 0x80000000, 128, PMD_SECT_DEF_CACHED);
arm_create_section(0x90000000, 0x80000000, 128, PMD_SECT_DEF_UNCACHED);
setup_dma_coherent(0x10000000);
#if TEXT_BASE & (0x100000 - 1)
#warning cannot create vector section. Adjust TEXT_BASE to a 1M boundary
#else
arm_create_section(0x0, TEXT_BASE, 1, PMD_SECT_DEF_UNCACHED);
#endif
mmu_enable();
#ifdef CONFIG_CACHE_L2X0
l2x0_init((void __iomem *)0x30000000, 0x00030024, 0x00000000);
#endif
}
#else
static void pcm037_mmu_init(void)
{
}
#endif
static int imx31_devices_init(void)
{
pcm037_mmu_init();
__REG(CSCR_U(0)) = 0x0000cf03; /* CS0: Nor Flash */
__REG(CSCR_L(0)) = 0x10000d03;
__REG(CSCR_A(0)) = 0x00720900;