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Eukrea CPUIMX27 : Add MMU support 

Signed-off-by: Eric Benard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Eric Benard 2009-10-22 16:46:15 +02:00 committed by Sascha Hauer
parent 2adeb59c22
commit 4b3e650d10
2 changed files with 27 additions and 0 deletions
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1
arch/arm/mach-imx/Kconfig
View File

@ -140,6 +140,7 @@ choice
config MACH_EUKREA_CPUIMX27
bool "EUKREA CPUIMX27"
select HAS_CFI
select HAVE_MMU
select MACH_HAS_LOWLEVEL_INIT
help
Say Y here if you are using Eukrea's CPUIMX27 equipped

26
board/eukrea_cpuimx27/eukrea_cpuimx27.c
View File

@ -41,6 +41,7 @@
#include <mach/imx-nand.h>
#include <mach/imx-pll.h>
#include <ns16550.h>
#include <asm/mmu.h>
static struct device_d cfi_dev = {
.name = "cfi_flash",
@ -138,6 +139,29 @@ static struct device_d quad_uart_serial_device = {
};
#endif
#ifdef CONFIG_MMU
static void eukrea_cpuimx27_mmu_init(void)
{
mmu_init();
arm_create_section(0xa0000000, 0xa0000000, 128, PMD_SECT_DEF_CACHED);
arm_create_section(0xb0000000, 0xa0000000, 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();
}
#else
static void eukrea_cpuimx27_mmu_init(void)
{
}
#endif
static int eukrea_cpuimx27_devices_init(void)
{
char *envdev = "no";
@ -170,6 +194,8 @@ static int eukrea_cpuimx27_devices_init(void)
#endif
};
eukrea_cpuimx27_mmu_init();
/* configure 16 bit nor flash on cs0 */
CS0U = 0x0000CC03;
CS0L = 0xa0330D01;