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u-boot 2011.10rc: turn on dcache for beaglebone

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
This commit is contained in:
Koen Kooi
2011-11-08 08:10:43 +01:00
parent 3bb013a145
commit 424830eb54
2 changed files with 48 additions and 1 deletions
@@ -0,0 +1,46 @@
From 31d430d8db335b7c3fea08b6aa8309b90b8f2cb9 Mon Sep 17 00:00:00 2001
From: Tom Rini <trini@ti.com>
Date: Tue, 8 Nov 2011 08:07:47 +0100
Subject: [PATCH 8/8] HACK: am335x evm: turn d-cache on globally, turn it off when doing nfs stuff
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
---
board/ti/am335x/evm.c | 12 ++++++++++++
include/configs/am335x_evm.h | 1 +
2 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/board/ti/am335x/evm.c b/board/ti/am335x/evm.c
index bc1119e..e64626a 100644
--- a/board/ti/am335x/evm.c
+++ b/board/ti/am335x/evm.c
@@ -1041,3 +1041,15 @@ U_BOOT_CMD(
#endif /* CONFIG_NAND_TI81XX */
#endif /* CONFIG_SPL_BUILD */
+
+/*
+ * Not all drivers we use (such as ethernet) are dcache safe. But
+ * we need cache on to boot quickly enough.
+ */
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+ /* Enable D-cache. I-cache is already enabled in start.S */
+ dcache_enable();
+}
+#endif
diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index 8bf3ff1..58fa2f6 100755
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -119,6 +119,7 @@
"bootm ${loadaddr}\0" \
"net_boot=echo Booting from network ...; " \
"setenv autoload no; " \
+ "dcache off; " \
"dhcp; " \
"tftp ${loadaddr} ${bootfile}; " \
"run net_args; " \
--
1.7.2.5
+2 -1
View File
@@ -4,7 +4,7 @@ require u-boot.inc
COMPATIBLE_MACHINE = "(ti33x)" COMPATIBLE_MACHINE = "(ti33x)"
DEFAULT_PREFERENCE_ti33x = "99" DEFAULT_PREFERENCE_ti33x = "99"
PV = "2011.09+git" PV = "2011.09+git"
PR = "r20" PR = "r21"
# SPL build # SPL build
UBOOT_BINARY = "u-boot.img" UBOOT_BINARY = "u-boot.img"
@@ -19,6 +19,7 @@ SRC_URI = "git://arago-project.org/git/projects/u-boot-am33x.git;protocol=git;br
file://2011.09git/0005-am335x-Change-mmc_load_uimage-to-load-at-a-fixed-add.patch \ file://2011.09git/0005-am335x-Change-mmc_load_uimage-to-load-at-a-fixed-add.patch \
file://2011.09git/0006-am335x-evm-Fix-bone-pmic-shut-down-over-USB-power.patch \ file://2011.09git/0006-am335x-evm-Fix-bone-pmic-shut-down-over-USB-power.patch \
file://2011.09git/0007-am335x_evm-switch-to-ext4.patch \ file://2011.09git/0007-am335x_evm-switch-to-ext4.patch \
file://2011.09git/0008-HACK-am335x-evm-turn-d-cache-on-globally-turn-it-off.patch \
" "
SRCREV = "f63b270e47f62f4d1a05b2001357e215966c6f5a" SRCREV = "f63b270e47f62f4d1a05b2001357e215966c6f5a"