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Date: Thu, 29 Apr 2010 10:38:33 +0200
From: Richard Cochran <richardcochran@...il.com>
To: Wolfgang Grandegger <wg@...ndegger.com>
Cc: netdev@...r.kernel.org
Subject: Re: [PATCH 0/3] [RFC] ptp: IEEE 1588 clock support
On Wed, Apr 28, 2010 at 04:31:35PM +0200, Wolfgang Grandegger wrote:
> That's because some 1588_PPS related bits are not yet setup in the
> platform code of mainline kernel.
Just remembered, I am carrying along the following patch to fix the
wrong mainline code for the mpc8313. Really annoying.
Richard
>From 4306b6f89e5565928b4462fd8cff19a3e484f1c4 Mon Sep 17 00:00:00 2001
From: Richard Cochran <richard.cochran@...cron.at>
Date: Tue, 6 Apr 2010 13:36:32 +0200
Subject: [PATCH] mpc8313: fixed the board support for REV C
---
arch/powerpc/boot/dts/mpc8313erdb.dts | 56 ++++++++++++++++++++++------
arch/powerpc/platforms/83xx/mpc831x_rdb.c | 15 ++++++++
2 files changed, 59 insertions(+), 12 deletions(-)
diff --git a/arch/powerpc/boot/dts/mpc8313erdb.dts b/arch/powerpc/boot/dts/mpc8313erdb.dts
index 761faa7..183f2aa 100644
--- a/arch/powerpc/boot/dts/mpc8313erdb.dts
+++ b/arch/powerpc/boot/dts/mpc8313erdb.dts
@@ -70,6 +70,26 @@
reg = <0x0 0x0 0x800000>;
bank-width = <2>;
device-width = <1>;
+ partition@0 {
+ label = "U-Boot";
+ reg = <0x00000000 0x00100000>;
+ };
+ partition@...000 {
+ label = "kernel";
+ reg = <0x00100000 0x00200000>;
+ };
+ partition@...000 {
+ label = "rootfs";
+ reg = <0x00300000 0x00400000>;
+ };
+ partition@...000 {
+ label = "DTB";
+ reg = <0x00700000 0x00010000>;
+ };
+ partition@...000 {
+ label = "vsc-util";
+ reg = <0x00710000 0x000F0000>;
+ };
};
nand@1,0 {
@@ -78,19 +98,31 @@
compatible = "fsl,mpc8313-fcm-nand",
"fsl,elbc-fcm-nand";
reg = <0x1 0x0 0x2000>;
-
- u-boot@0 {
- reg = <0x0 0x100000>;
- read-only;
+ partition@0 {
+ label = "U-Boot-NAND";
+ reg = <0x00000000 0x00100000>;
};
-
- kernel@...000 {
- reg = <0x100000 0x300000>;
+ partition@...000 {
+ label = "JFFS2-NAND";
+ reg = <0x00100000 0x00800000>;
};
-
- fs@...000 {
- reg = <0x400000 0x1c00000>;
+ partition@...000 {
+ label = "Ramdisk-NAND";
+ reg = <0x00900000 0x00400000>;
+ };
+ partition@...000 {
+ label = "Reserve-NAND";
+ reg = <0x00d00000 0x01000000>;
};
+ partition@...0000 {
+ label = "Kernel-NAND";
+ reg = <0x01d00000 0x00200000>;
+ };
+ partition@...0000 {
+ label = "DTB-NAND";
+ reg = <0x01f00000 0x00100000>;
+ };
+
};
};
@@ -188,7 +220,7 @@
compatible = "gianfar";
reg = <0x24000 0x1000>;
local-mac-address = [ 00 00 00 00 00 00 ];
- interrupts = <37 0x8 36 0x8 35 0x8>;
+ interrupts = <32 0x8 33 0x8 34 0x8>;
interrupt-parent = <&ipic>;
tbi-handle = < &tbi0 >;
/* Vitesse 7385 isn't on the MDIO bus */
@@ -223,7 +255,7 @@
reg = <0x25000 0x1000>;
ranges = <0x0 0x25000 0x1000>;
local-mac-address = [ 00 00 00 00 00 00 ];
- interrupts = <34 0x8 33 0x8 32 0x8>;
+ interrupts = <35 0x8 36 0x8 37 0x8>;
interrupt-parent = <&ipic>;
tbi-handle = < &tbi1 >;
phy-handle = < &phy4 >;
diff --git a/arch/powerpc/platforms/83xx/mpc831x_rdb.c b/arch/powerpc/platforms/83xx/mpc831x_rdb.c
index 0b4f883..7f80269 100644
--- a/arch/powerpc/platforms/83xx/mpc831x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc831x_rdb.c
@@ -20,6 +20,7 @@
#include <asm/ipic.h>
#include <asm/udbg.h>
#include <sysdev/fsl_pci.h>
+#include <sysdev/fsl_soc.h>
#include "mpc83xx.h"
@@ -31,6 +32,8 @@ static void __init mpc831x_rdb_setup_arch(void)
#ifdef CONFIG_PCI
struct device_node *np;
#endif
+ void __iomem *immap;
+ unsigned long spcr, sicrh;
if (ppc_md.progress)
ppc_md.progress("mpc831x_rdb_setup_arch()", 0);
@@ -42,6 +45,18 @@ static void __init mpc831x_rdb_setup_arch(void)
mpc83xx_add_bridge(np);
#endif
mpc831x_usb_cfg();
+
+#define MPC83XX_SPCR_OFFS 0x110
+#define MPC8313_SPCR_1588_PPS 0x00004000
+#define MPC8313_SICRH_1588_PPS 0x01000000
+
+ immap = ioremap(get_immrbase(), 0x1000);
+ spcr = in_be32(immap + MPC83XX_SPCR_OFFS);
+ sicrh = in_be32(immap + MPC83XX_SICRH_OFFS);
+ sicrh |= MPC8313_SICRH_1588_PPS;
+ out_be32(immap + MPC83XX_SICRH_OFFS, sicrh);
+ spcr |= MPC8313_SPCR_1588_PPS;
+ out_be32(immap + MPC83XX_SPCR_OFFS, spcr);
}
static void __init mpc831x_rdb_init_IRQ(void)
--
1.6.0.4
--
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