From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from az33egw02.freescale.net (az33egw02.freescale.net [192.88.158.103]) by ozlabs.org (Postfix) with ESMTP id 7EE51DE59D for ; Sat, 17 Mar 2007 04:28:55 +1100 (EST) Received: from az33smr01.freescale.net (az33smr01.freescale.net [10.64.34.199]) by az33egw02.freescale.net (8.12.11/az33egw02) with ESMTP id l2GHSqSK004419 for ; Fri, 16 Mar 2007 10:28:52 -0700 (MST) Received: from mailserv2.am.freescale.net (mailserv2.am.freescale.net [10.82.65.62]) by az33smr01.freescale.net (8.13.1/8.13.0) with ESMTP id l2GHSqfM009950 for ; Fri, 16 Mar 2007 12:28:52 -0500 (CDT) Received: from ld0162-tx32.am.freescale.net (ld0162-tx32 [10.82.19.112]) by mailserv2.am.freescale.net (8.13.3/8.13.3) with ESMTP id l2GH9AQ5001410 for ; Fri, 16 Mar 2007 12:09:10 -0500 (CDT) Received: from ld0162-tx32.am.freescale.net (localhost [127.0.0.1]) by ld0162-tx32.am.freescale.net (Postfix) with ESMTP id 31168AEFC9 for ; Fri, 16 Mar 2007 12:28:51 -0500 (CDT) Received: (from b07421@localhost) by ld0162-tx32.am.freescale.net (8.12.11/8.12.11/Submit) id l2GHSpGT029832 for linuxppc-dev@ozlabs.org; Fri, 16 Mar 2007 12:28:51 -0500 Date: Fri, 16 Mar 2007 12:28:51 -0500 From: Scott Wood To: linuxppc-dev@ozlabs.org Subject: [PATCH 09/17] bootwrapper: Add dt_set_cpu_clocks(). Message-ID: <20070316172851.GI29784@ld0162-tx32.am.freescale.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20070316172641.GA29709@ld0162-tx32.am.freescale.net> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This adds a library function that platform files can call to set clock-frequency, bus-frequency, and timebase-frequency in each CPU node. Signed-off-by: Scott Wood --- arch/powerpc/boot/devtree.c | 11 +++++++++++ arch/powerpc/boot/ops.h | 1 + 2 files changed, 12 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/boot/devtree.c b/arch/powerpc/boot/devtree.c index 258158e..bfb7dcb 100644 --- a/arch/powerpc/boot/devtree.c +++ b/arch/powerpc/boot/devtree.c @@ -230,3 +230,14 @@ void dt_set_memory(u64 start, u64 size, int ncells) setprop(devp, "reg", mem, ncells * 8); } + +void dt_set_cpu_clocks(u32 clock, u32 bus, u32 timebase) +{ + void *node = NULL; + + while ((node = find_node_by_devtype(node, "cpu"))) { + setprop(node, "clock-frequency", &clock, 4); + setprop(node, "bus-frequency", &bus, 4); + setprop(node, "timebase-frequency", &timebase, 4); + } +} diff --git a/arch/powerpc/boot/ops.h b/arch/powerpc/boot/ops.h index 10c8787..c739764 100644 --- a/arch/powerpc/boot/ops.h +++ b/arch/powerpc/boot/ops.h @@ -81,6 +81,7 @@ void *simple_alloc_init(char *base, u32 heap_size, u32 granularity, u32 max_allocs); int xlate_reg(void *node, int res, unsigned long *addr, unsigned long *size); void dt_set_memory(u64 start, u64 len, int ncells); +void dt_set_cpu_clocks(u32 clock, u32 bus, u32 timebase); static inline void *finddevice(const char *name) { -- 1.5.0.3