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powerpc/52xx: Remove dead code, i.e. mpc52xx_get_xtal_freq()

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It seems mpc52xx_get_xtal_freq() is not used anywhere. Remove dead code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220507100147.5802-1-andriy.shevchenko@linux.intel.com
This commit is contained in:
Andy Shevchenko 2022-05-07 13:01:44 +03:00 committed by Michael Ellerman
parent 882c835b71
commit 6d056b7254
2 changed files with 0 additions and 38 deletions
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1
arch/powerpc/include/asm/mpc52xx.h
View File

@ -274,7 +274,6 @@ extern void mpc52xx_declare_of_platform_devices(void);
extern int mpc5200_psc_ac97_gpio_reset(int psc_number);
extern void mpc52xx_map_common_devices(void);
extern int mpc52xx_set_psc_clkdiv(int psc_id, int clkdiv);
extern unsigned int mpc52xx_get_xtal_freq(struct device_node *node);
extern void __noreturn mpc52xx_restart(char *cmd);
/* mpc52xx_gpt.c */

37
arch/powerpc/platforms/52xx/mpc52xx_common.c
View File

@ -203,43 +203,6 @@ int mpc52xx_set_psc_clkdiv(int psc_id, int clkdiv)
}
EXPORT_SYMBOL(mpc52xx_set_psc_clkdiv);
/**
* mpc52xx_get_xtal_freq - Get SYS_XTAL_IN frequency for a device
*
* @node: device node
*
* Returns the frequency of the external oscillator clock connected
* to the SYS_XTAL_IN pin, or 0 if it cannot be determined.
*/
unsigned int mpc52xx_get_xtal_freq(struct device_node *node)
{
u32 val;
unsigned int freq;
if (!mpc52xx_cdm)
return 0;
freq = mpc5xxx_get_bus_frequency(node);
if (!freq)
return 0;
if (in_8(&mpc52xx_cdm->ipb_clk_sel) & 0x1)
freq *= 2;
val = in_be32(&mpc52xx_cdm->rstcfg);
if (val & (1 << 5))
freq *= 8;
else
freq *= 4;
if (val & (1 << 6))
freq /= 12;
else
freq /= 16;
return freq;
}
EXPORT_SYMBOL(mpc52xx_get_xtal_freq);
/**
* mpc52xx_restart: ppc_md->restart hook for mpc5200 using the watchdog timer
*/