From: Josh Cartwright <josh.cartwright@ni.com>
To: arm@kernel.org, Arnd Bergmann <arnd@arndb.de>
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
John Linn <john.linn@xilinx.com>,
Nick Bowler <nbowler@elliptictech.com>
Subject: [PATCH v3 2/5] zynq: use pl310 device tree bindings
Date: Tue, 23 Oct 2012 19:34:16 -0500 [thread overview]
Message-ID: <20121024003416.GC31625@beefymiracle.amer.corp.natinst.com> (raw)
In-Reply-To: <20121024003218.GA31625@beefymiracle.amer.corp.natinst.com>
The Zynq has a PL310 L2 cache controller. Convert in-tree uses to using
the device tree.
Signed-off-by: Josh Cartwright <josh.cartwright@ni.com>
Cc: John Linn <john.linn@xilinx.com>
---
arch/arm/boot/dts/zynq-ep107.dts | 9 +++++++++
arch/arm/mach-zynq/common.c | 9 +--------
arch/arm/mach-zynq/include/mach/zynq_soc.h | 4 ----
3 files changed, 10 insertions(+), 12 deletions(-)
diff --git a/arch/arm/boot/dts/zynq-ep107.dts b/arch/arm/boot/dts/zynq-ep107.dts
index 7bfff4a..87204d7 100644
--- a/arch/arm/boot/dts/zynq-ep107.dts
+++ b/arch/arm/boot/dts/zynq-ep107.dts
@@ -44,6 +44,15 @@
<0xF8F00100 0x100>;
};
+ L2: cache-controller {
+ compatible = "arm,pl310-cache";
+ reg = <0xF8F02000 0x1000>;
+ arm,data-latency = <2 3 2>;
+ arm,tag-latency = <2 3 2>;
+ cache-unified;
+ cache-level = <2>;
+ };
+
uart0: uart@e0000000 {
compatible = "xlnx,xuartps";
reg = <0xE0000000 0x1000>;
diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c
index d73963b..056091a 100644
--- a/arch/arm/mach-zynq/common.c
+++ b/arch/arm/mach-zynq/common.c
@@ -45,12 +45,10 @@ static struct of_device_id zynq_of_bus_ids[] __initdata = {
*/
static void __init xilinx_init_machine(void)
{
-#ifdef CONFIG_CACHE_L2X0
/*
* 64KB way size, 8-way associativity, parity disabled
*/
- l2x0_init(PL310_L2CC_BASE, 0x02060000, 0xF0F0FFFF);
-#endif
+ l2x0_of_init(0x02060000, 0xF0F0FFFF);
of_platform_bus_probe(NULL, zynq_of_bus_ids, NULL);
}
@@ -83,11 +81,6 @@ static struct map_desc io_desc[] __initdata = {
.pfn = __phys_to_pfn(SCU_PERIPH_PHYS),
.length = SZ_8K,
.type = MT_DEVICE,
- }, {
- .virtual = PL310_L2CC_VIRT,
- .pfn = __phys_to_pfn(PL310_L2CC_PHYS),
- .length = SZ_4K,
- .type = MT_DEVICE,
},
#ifdef CONFIG_DEBUG_LL
diff --git a/arch/arm/mach-zynq/include/mach/zynq_soc.h b/arch/arm/mach-zynq/include/mach/zynq_soc.h
index 3d1c6a6..218283a 100644
--- a/arch/arm/mach-zynq/include/mach/zynq_soc.h
+++ b/arch/arm/mach-zynq/include/mach/zynq_soc.h
@@ -25,9 +25,6 @@
#define TTC0_PHYS 0xF8001000
#define TTC0_VIRT TTC0_PHYS
-#define PL310_L2CC_PHYS 0xF8F02000
-#define PL310_L2CC_VIRT PL310_L2CC_PHYS
-
#define SCU_PERIPH_PHYS 0xF8F00000
#define SCU_PERIPH_VIRT SCU_PERIPH_PHYS
@@ -35,7 +32,6 @@
#define TTC0_BASE IOMEM(TTC0_VIRT)
#define SCU_PERIPH_BASE IOMEM(SCU_PERIPH_VIRT)
-#define PL310_L2CC_BASE IOMEM(PL310_L2CC_VIRT)
/*
* Mandatory for CONFIG_LL_DEBUG, UART is mapped virtual = physical
--
1.8.0
next prev parent reply other threads:[~2012-10-24 0:34 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-24 0:32 [PATCH v3 0/5] zynq subarch cleanups Josh Cartwright
2012-10-24 0:33 ` [PATCH v3 1/5] zynq: use GIC device tree bindings Josh Cartwright
2012-10-24 12:03 ` Arnd Bergmann
2012-10-24 0:34 ` Josh Cartwright [this message]
2012-10-24 12:04 ` [PATCH v3 2/5] zynq: use pl310 " Arnd Bergmann
2012-10-24 0:34 ` [PATCH v3 3/5] zynq: remove use of CLKDEV_LOOKUP Josh Cartwright
2012-10-24 12:05 ` Arnd Bergmann
2012-10-24 13:32 ` Nick Bowler
2012-10-24 18:16 ` Josh Cartwright
2012-10-24 0:35 ` [PATCH v3 4/5] ARM: annotate VMALLOC_END definition with _AC Josh Cartwright
2012-10-24 12:07 ` Arnd Bergmann
2012-10-24 0:35 ` [PATCH v3 5/5] zynq: move static peripheral mappings Josh Cartwright
2012-10-24 12:08 ` Arnd Bergmann
2012-10-24 12:09 ` [PATCH v3 0/5] zynq subarch cleanups Arnd Bergmann
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20121024003416.GC31625@beefymiracle.amer.corp.natinst.com \
--to=josh.cartwright@ni.com \
--cc=arm@kernel.org \
--cc=arnd@arndb.de \
--cc=john.linn@xilinx.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nbowler@elliptictech.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome