From 87c441e54dfcf9f45593ecaf68e7e18ea53d5e13 Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Wed, 17 Jun 2009 00:30:22 -0600 Subject: powerpc/5xxx: Add common mpc5xxx_get_bus_frequency() function So far, MPC512x used mpc512x_find_ips_freq() to get the bus frequency, while MPC52xx used mpc52xx_find_ipb_freq(). Despite the different clock names (IPS vs. IPB) the code was identical. Use common code for both processor families. Signed-off-by: Wolfgang Denk Signed-off-by: Grant Likely --- arch/powerpc/include/asm/mpc512x.h | 22 ------------------- arch/powerpc/include/asm/mpc52xx.h | 2 +- arch/powerpc/include/asm/mpc5xxx.h | 22 +++++++++++++++++++ arch/powerpc/platforms/512x/clock.c | 2 +- arch/powerpc/platforms/512x/mpc512x.h | 1 - arch/powerpc/platforms/512x/mpc512x_shared.c | 23 ------------------- arch/powerpc/platforms/52xx/mpc52xx_common.c | 32 +-------------------------- arch/powerpc/sysdev/Makefile | 3 +++ arch/powerpc/sysdev/mpc5xxx_clocks.c | 33 ++++++++++++++++++++++++++++ 9 files changed, 61 insertions(+), 79 deletions(-) delete mode 100644 arch/powerpc/include/asm/mpc512x.h create mode 100644 arch/powerpc/include/asm/mpc5xxx.h create mode 100644 arch/powerpc/sysdev/mpc5xxx_clocks.c (limited to 'arch/powerpc') diff --git a/arch/powerpc/include/asm/mpc512x.h b/arch/powerpc/include/asm/mpc512x.h deleted file mode 100644 index c48a1658eea..00000000000 --- a/arch/powerpc/include/asm/mpc512x.h +++ /dev/null @@ -1,22 +0,0 @@ -/* - * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved. - * - * Author: John Rigby, , Friday Apr 13 2007 - * - * Description: - * MPC5121 Prototypes and definitions - * - * This is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - */ - -#ifndef __ASM_POWERPC_MPC512x_H__ -#define __ASM_POWERPC_MPC512x_H__ - -extern unsigned long mpc512x_find_ips_freq(struct device_node *node); - -#endif /* __ASM_POWERPC_MPC512x_H__ */ - diff --git a/arch/powerpc/include/asm/mpc52xx.h b/arch/powerpc/include/asm/mpc52xx.h index 52e049cd9e6..1b4f697abbd 100644 --- a/arch/powerpc/include/asm/mpc52xx.h +++ b/arch/powerpc/include/asm/mpc52xx.h @@ -16,6 +16,7 @@ #ifndef __ASSEMBLY__ #include #include +#include #endif /* __ASSEMBLY__ */ #include @@ -268,7 +269,6 @@ struct mpc52xx_intr { #ifndef __ASSEMBLY__ /* mpc52xx_common.c */ -extern unsigned int mpc52xx_find_ipb_freq(struct device_node *node); extern void mpc5200_setup_xlb_arbiter(void); extern void mpc52xx_declare_of_platform_devices(void); extern void mpc52xx_map_common_devices(void); diff --git a/arch/powerpc/include/asm/mpc5xxx.h b/arch/powerpc/include/asm/mpc5xxx.h new file mode 100644 index 00000000000..5ce9c5fa434 --- /dev/null +++ b/arch/powerpc/include/asm/mpc5xxx.h @@ -0,0 +1,22 @@ +/* + * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved. + * + * Author: John Rigby, , Friday Apr 13 2007 + * + * Description: + * MPC5xxx Prototypes and definitions + * + * This is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + */ + +#ifndef __ASM_POWERPC_MPC5xxx_H__ +#define __ASM_POWERPC_MPC5xxx_H__ + +extern unsigned long mpc5xxx_get_bus_frequency(struct device_node *node); + +#endif /* __ASM_POWERPC_MPC5xxx_H__ */ + diff --git a/arch/powerpc/platforms/512x/clock.c b/arch/powerpc/platforms/512x/clock.c index 1bcff94eb92..f4c4c6f807d 100644 --- a/arch/powerpc/platforms/512x/clock.c +++ b/arch/powerpc/platforms/512x/clock.c @@ -24,7 +24,7 @@ #include #include -#include +#include #include #undef CLK_DEBUG diff --git a/arch/powerpc/platforms/512x/mpc512x.h b/arch/powerpc/platforms/512x/mpc512x.h index 9c03693cb00..22a5352407e 100644 --- a/arch/powerpc/platforms/512x/mpc512x.h +++ b/arch/powerpc/platforms/512x/mpc512x.h @@ -11,7 +11,6 @@ #ifndef __MPC512X_H__ #define __MPC512X_H__ -extern unsigned long mpc512x_find_ips_freq(struct device_node *node); extern void __init mpc512x_init_IRQ(void); void __init mpc512x_declare_of_platform_devices(void); #endif /* __MPC512X_H__ */ diff --git a/arch/powerpc/platforms/512x/mpc512x_shared.c b/arch/powerpc/platforms/512x/mpc512x_shared.c index d8cd579f319..434d683df5a 100644 --- a/arch/powerpc/platforms/512x/mpc512x_shared.c +++ b/arch/powerpc/platforms/512x/mpc512x_shared.c @@ -24,29 +24,6 @@ #include "mpc512x.h" -unsigned long -mpc512x_find_ips_freq(struct device_node *node) -{ - struct device_node *np; - const unsigned int *p_ips_freq = NULL; - - of_node_get(node); - while (node) { - p_ips_freq = of_get_property(node, "bus-frequency", NULL); - if (p_ips_freq) - break; - - np = of_get_parent(node); - of_node_put(node); - node = np; - } - if (node) - of_node_put(node); - - return p_ips_freq ? *p_ips_freq : 0; -} -EXPORT_SYMBOL(mpc512x_find_ips_freq); - void __init mpc512x_init_IRQ(void) { struct device_node *np; diff --git a/arch/powerpc/platforms/52xx/mpc52xx_common.c b/arch/powerpc/platforms/52xx/mpc52xx_common.c index 8e3dd5a0f22..a46bad0c233 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_common.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_common.c @@ -47,36 +47,6 @@ static DEFINE_SPINLOCK(mpc52xx_lock); static struct mpc52xx_gpt __iomem *mpc52xx_wdt; static struct mpc52xx_cdm __iomem *mpc52xx_cdm; -/** - * mpc52xx_find_ipb_freq - Find the IPB bus frequency for a device - * @node: device node - * - * Returns IPB bus frequency, or 0 if the bus frequency cannot be found. - */ -unsigned int -mpc52xx_find_ipb_freq(struct device_node *node) -{ - struct device_node *np; - const unsigned int *p_ipb_freq = NULL; - - of_node_get(node); - while (node) { - p_ipb_freq = of_get_property(node, "bus-frequency", NULL); - if (p_ipb_freq) - break; - - np = of_get_parent(node); - of_node_put(node); - node = np; - } - if (node) - of_node_put(node); - - return p_ipb_freq ? *p_ipb_freq : 0; -} -EXPORT_SYMBOL(mpc52xx_find_ipb_freq); - - /* * Configure the XLB arbiter settings to match what Linux expects. */ @@ -221,7 +191,7 @@ unsigned int mpc52xx_get_xtal_freq(struct device_node *node) if (!mpc52xx_cdm) return 0; - freq = mpc52xx_find_ipb_freq(node); + freq = mpc5xxx_get_bus_frequency(node); if (!freq) return 0; diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile index d073bfdd222..9d4b17462f1 100644 --- a/arch/powerpc/sysdev/Makefile +++ b/arch/powerpc/sysdev/Makefile @@ -50,6 +50,9 @@ obj-$(CONFIG_PPC_DCR) += dcr.o obj-$(CONFIG_8xx) += mpc8xx_pic.o cpm1.o obj-$(CONFIG_UCODE_PATCH) += micropatch.o +obj-$(CONFIG_PPC_MPC512x) += mpc5xxx_clocks.o +obj-$(CONFIG_PPC_MPC52xx) += mpc5xxx_clocks.o + ifeq ($(CONFIG_SUSPEND),y) obj-$(CONFIG_6xx) += 6xx-suspend.o endif diff --git a/arch/powerpc/sysdev/mpc5xxx_clocks.c b/arch/powerpc/sysdev/mpc5xxx_clocks.c new file mode 100644 index 00000000000..34e12f9995f --- /dev/null +++ b/arch/powerpc/sysdev/mpc5xxx_clocks.c @@ -0,0 +1,33 @@ +/** + * mpc5xxx_get_bus_frequency - Find the bus frequency for a device + * @node: device node + * + * Returns bus frequency (IPS on MPC512x, IPB on MPC52xx), + * or 0 if the bus frequency cannot be found. + */ + +#include +#include + +unsigned int +mpc5xxx_get_bus_frequency(struct device_node *node) +{ + struct device_node *np; + const unsigned int *p_bus_freq = NULL; + + of_node_get(node); + while (node) { + p_bus_freq = of_get_property(node, "bus-frequency", NULL); + if (p_bus_freq) + break; + + np = of_get_parent(node); + of_node_put(node); + node = np; + } + if (node) + of_node_put(node); + + return p_bus_freq ? *p_bus_freq : 0; +} +EXPORT_SYMBOL(mpc5xxx_get_bus_frequency); -- cgit v1.2.3