From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by canuck.infradead.org with esmtps (Exim 4.72 #1 (Red Hat Linux)) id 1PdpgX-0006G4-2L for barebox@lists.infradead.org; Fri, 14 Jan 2011 19:51:48 +0000 From: Sascha Hauer Date: Fri, 14 Jan 2011 20:51:34 +0100 Message-Id: <1295034699-18863-3-git-send-email-s.hauer@pengutronix.de> In-Reply-To: <1295034699-18863-1-git-send-email-s.hauer@pengutronix.de> References: <1295034699-18863-1-git-send-email-s.hauer@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 2/7] ARM tx28: Add mmu support To: barebox@lists.infradead.org Signed-off-by: Sascha Hauer --- arch/arm/boards/karo-tx28/tx28.c | 23 +++++++++++++++++++++++ arch/arm/mach-stm/Kconfig | 1 + 2 files changed, 24 insertions(+), 0 deletions(-) diff --git a/arch/arm/boards/karo-tx28/tx28.c b/arch/arm/boards/karo-tx28/tx28.c index 6f4ef4e..5692171 100644 --- a/arch/arm/boards/karo-tx28/tx28.c +++ b/arch/arm/boards/karo-tx28/tx28.c @@ -21,6 +21,7 @@ #include #include #include +#include static struct memory_platform_data ram_pdata = { .name = "ram0", @@ -82,6 +83,28 @@ static const uint32_t tx28_pad_setup[] = { extern void base_board_init(void); +#ifdef CONFIG_MMU +static int tx28_mmu_init(void) +{ + mmu_init(); + + arm_create_section(0x40000000, 0x40000000, 128, PMD_SECT_DEF_CACHED); + arm_create_section(0x50000000, 0x40000000, 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(); + + return 0; +} +postcore_initcall(tx28_mmu_init); +#endif + static int tx28_devices_init(void) { int i; diff --git a/arch/arm/mach-stm/Kconfig b/arch/arm/mach-stm/Kconfig index e47d9f1..402a9b7 100644 --- a/arch/arm/mach-stm/Kconfig +++ b/arch/arm/mach-stm/Kconfig @@ -55,6 +55,7 @@ choice config MACH_TX28 bool "KARO tx28" + select HAVE_MMU help Say Y here if you are using the KARO TX28 CPU module. -- 1.7.2.3 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox