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m68k: Remove unused set_clock_mmss() helpers

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Commit 397ac99c6c ("m68k: remove dead timer code") removed set_rtc_mmss()
because it was unused in 2012. However, this was itself the only user of the
mach_set_clock_mmss() callback and the many implementations of that callback,
which are equally unused.

This removes all of those as well.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Greg Ungerer <gerg@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Arnd Bergmann 2018-06-19 16:02:29 +02:00 committed by Geert Uytterhoeven
parent 5b9bfb8ec4
commit d7de1c3af1
12 changed files with 0 additions and 187 deletions
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8
arch/m68k/apollo/config.c
View File

@ -31,7 +31,6 @@ extern void dn_sched_init(irq_handler_t handler);
extern void dn_init_IRQ(void);
extern u32 dn_gettimeoffset(void);
extern int dn_dummy_hwclk(int, struct rtc_time *);
extern int dn_dummy_set_clock_mmss(unsigned long);
extern void dn_dummy_reset(void);
#ifdef CONFIG_HEARTBEAT
static void dn_heartbeat(int on);
@ -156,7 +155,6 @@ void __init config_apollo(void)
arch_gettimeoffset = dn_gettimeoffset;
mach_max_dma_address = 0xffffffff;
mach_hwclk = dn_dummy_hwclk; /* */
mach_set_clock_mmss = dn_dummy_set_clock_mmss; /* */
mach_reset = dn_dummy_reset; /* */
#ifdef CONFIG_HEARTBEAT
mach_heartbeat = dn_heartbeat;
@ -240,12 +238,6 @@ int dn_dummy_hwclk(int op, struct rtc_time *t) {
}
int dn_dummy_set_clock_mmss(unsigned long nowtime)
{
pr_info("set_clock_mmss\n");
return 0;
}
void dn_dummy_reset(void) {
dn_serial_print("The end !\n");

5
arch/m68k/atari/config.c
View File

@ -81,9 +81,6 @@ extern void atari_sched_init(irq_handler_t);
extern u32 atari_gettimeoffset(void);
extern int atari_mste_hwclk (int, struct rtc_time *);
extern int atari_tt_hwclk (int, struct rtc_time *);
extern int atari_mste_set_clock_mmss (unsigned long);
extern int atari_tt_set_clock_mmss (unsigned long);
/* ++roman: This is a more elaborate test for an SCC chip, since the plain
* Medusa board generates DTACK at the SCC's standard addresses, but a SCC
@ -362,13 +359,11 @@ void __init config_atari(void)
ATARIHW_SET(TT_CLK);
pr_cont(" TT_CLK");
mach_hwclk = atari_tt_hwclk;
mach_set_clock_mmss = atari_tt_set_clock_mmss;
}
if (hwreg_present(&mste_rtc.sec_ones)) {
ATARIHW_SET(MSTE_CLK);
pr_cont(" MSTE_CLK");
mach_hwclk = atari_mste_hwclk;
mach_set_clock_mmss = atari_mste_set_clock_mmss;
}
if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) &&
hwreg_write(&dma_wd.fdc_speed, 0)) {

63
arch/m68k/atari/time.c
View File

@ -285,69 +285,6 @@ int atari_tt_hwclk( int op, struct rtc_time *t )
return( 0 );
}
int atari_mste_set_clock_mmss (unsigned long nowtime)
{
short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;
struct MSTE_RTC val;
unsigned char rtc_minutes;
mste_read(&val);
rtc_minutes= val.min_ones + val.min_tens * 10;
if ((rtc_minutes < real_minutes
? real_minutes - rtc_minutes
: rtc_minutes - real_minutes) < 30)
{
val.sec_ones = real_seconds % 10;
val.sec_tens = real_seconds / 10;
val.min_ones = real_minutes % 10;
val.min_tens = real_minutes / 10;
mste_write(&val);
}
else
return -1;
return 0;
}
int atari_tt_set_clock_mmss (unsigned long nowtime)
{
int retval = 0;
short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;
unsigned char save_control, save_freq_select, rtc_minutes;
save_control = RTC_READ (RTC_CONTROL); /* tell the clock it's being set */
RTC_WRITE (RTC_CONTROL, save_control | RTC_SET);
save_freq_select = RTC_READ (RTC_FREQ_SELECT); /* stop and reset prescaler */
RTC_WRITE (RTC_FREQ_SELECT, save_freq_select | RTC_DIV_RESET2);
rtc_minutes = RTC_READ (RTC_MINUTES);
if (!(save_control & RTC_DM_BINARY))
rtc_minutes = bcd2bin(rtc_minutes);
/* Since we're only adjusting minutes and seconds, don't interfere
with hour overflow. This avoids messing with unknown time zones
but requires your RTC not to be off by more than 30 minutes. */
if ((rtc_minutes < real_minutes
? real_minutes - rtc_minutes
: rtc_minutes - real_minutes) < 30)
{
if (!(save_control & RTC_DM_BINARY))
{
real_seconds = bin2bcd(real_seconds);
real_minutes = bin2bcd(real_minutes);
}
RTC_WRITE (RTC_SECONDS, real_seconds);
RTC_WRITE (RTC_MINUTES, real_minutes);
}
else
retval = -1;
RTC_WRITE (RTC_FREQ_SELECT, save_freq_select);
RTC_WRITE (RTC_CONTROL, save_control);
return retval;
}
/*
* Local variables:
* c-indent-level: 4

45
arch/m68k/bvme6000/config.c
View File

@ -41,7 +41,6 @@ static void bvme6000_get_model(char *model);
extern void bvme6000_sched_init(irq_handler_t handler);
extern u32 bvme6000_gettimeoffset(void);
extern int bvme6000_hwclk (int, struct rtc_time *);
extern int bvme6000_set_clock_mmss (unsigned long);
extern void bvme6000_reset (void);
void bvme6000_set_vectors (void);
@ -113,7 +112,6 @@ void __init config_bvme6000(void)
mach_init_IRQ = bvme6000_init_IRQ;
arch_gettimeoffset = bvme6000_gettimeoffset;
mach_hwclk = bvme6000_hwclk;
mach_set_clock_mmss = bvme6000_set_clock_mmss;
mach_reset = bvme6000_reset;
mach_get_model = bvme6000_get_model;
@ -305,46 +303,3 @@ int bvme6000_hwclk(int op, struct rtc_time *t)
return 0;
}
/*
* Set the minutes and seconds from seconds value 'nowtime'. Fail if
* clock is out by > 30 minutes. Logic lifted from atari code.
* Algorithm is to wait for the 10ms register to change, and then to
* wait a short while, and then set it.
*/
int bvme6000_set_clock_mmss (unsigned long nowtime)
{
int retval = 0;
short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;
unsigned char rtc_minutes, rtc_tenms;
volatile RtcPtr_t rtc = (RtcPtr_t)BVME_RTC_BASE;
unsigned char msr = rtc->msr & 0xc0;
unsigned long flags;
volatile int i;
rtc->msr = 0; /* Ensure clock accessible */
rtc_minutes = bcd2bin (rtc->bcd_min);
if ((rtc_minutes < real_minutes
? real_minutes - rtc_minutes
: rtc_minutes - real_minutes) < 30)
{
local_irq_save(flags);
rtc_tenms = rtc->bcd_tenms;
while (rtc_tenms == rtc->bcd_tenms)
;
for (i = 0; i < 1000; i++)
;
rtc->bcd_min = bin2bcd(real_minutes);
rtc->bcd_sec = bin2bcd(real_seconds);
local_irq_restore(flags);
}
else
retval = -1;
rtc->msr = msr;
return retval;
}

1
arch/m68k/include/asm/machdep.h
View File

@ -22,7 +22,6 @@ extern int (*mach_hwclk)(int, struct rtc_time*);
extern unsigned int (*mach_get_ss)(void);
extern int (*mach_get_rtc_pll)(struct rtc_pll_info *);
extern int (*mach_set_rtc_pll)(struct rtc_pll_info *);
extern int (*mach_set_clock_mmss)(unsigned long);
extern void (*mach_reset)( void );
extern void (*mach_halt)( void );
extern void (*mach_power_off)( void );

1
arch/m68k/kernel/setup_mm.c
View File

@ -88,7 +88,6 @@ void (*mach_get_hardware_list) (struct seq_file *m);
/* machine dependent timer functions */
int (*mach_hwclk) (int, struct rtc_time*);
EXPORT_SYMBOL(mach_hwclk);
int (*mach_set_clock_mmss) (unsigned long);
unsigned int (*mach_get_ss)(void);
int (*mach_get_rtc_pll)(struct rtc_pll_info *);
int (*mach_set_rtc_pll)(struct rtc_pll_info *);

1
arch/m68k/kernel/setup_no.c
View File

@ -51,7 +51,6 @@ char __initdata command_line[COMMAND_LINE_SIZE];
/* machine dependent timer functions */
void (*mach_sched_init)(irq_handler_t handler) __initdata = NULL;
int (*mach_set_clock_mmss)(unsigned long);
int (*mach_hwclk) (int, struct rtc_time*);
/* machine dependent reboot functions */

2
arch/m68k/mac/config.c
View File

@ -57,7 +57,6 @@ static unsigned long mac_orig_videoaddr;
/* Mac specific timer functions */
extern u32 mac_gettimeoffset(void);
extern int mac_hwclk(int, struct rtc_time *);
extern int mac_set_clock_mmss(unsigned long);
extern void iop_preinit(void);
extern void iop_init(void);
extern void via_init(void);
@ -158,7 +157,6 @@ void __init config_mac(void)
mach_get_model = mac_get_model;
arch_gettimeoffset = mac_gettimeoffset;
mach_hwclk = mac_hwclk;
mach_set_clock_mmss = mac_set_clock_mmss;
mach_reset = mac_reset;
mach_halt = mac_poweroff;
mach_power_off = mac_poweroff;

16
arch/m68k/mac/misc.c
View File

@ -727,19 +727,3 @@ int mac_hwclk(int op, struct rtc_time *t)
}
return 0;
}
/*
* Set minutes/seconds in the hardware clock
*/
int mac_set_clock_mmss (unsigned long nowtime)
{
struct rtc_time now;
mac_hwclk(0, &now);
now.tm_sec = nowtime % 60;
now.tm_min = (nowtime / 60) % 60;
mac_hwclk(1, &now);
return 0;
}

7
arch/m68k/mvme147/config.c
View File

@ -40,7 +40,6 @@ static void mvme147_get_model(char *model);
extern void mvme147_sched_init(irq_handler_t handler);
extern u32 mvme147_gettimeoffset(void);
extern int mvme147_hwclk (int, struct rtc_time *);
extern int mvme147_set_clock_mmss (unsigned long);
extern void mvme147_reset (void);
@ -92,7 +91,6 @@ void __init config_mvme147(void)
mach_init_IRQ = mvme147_init_IRQ;
arch_gettimeoffset = mvme147_gettimeoffset;
mach_hwclk = mvme147_hwclk;
mach_set_clock_mmss = mvme147_set_clock_mmss;
mach_reset = mvme147_reset;
mach_get_model = mvme147_get_model;
@ -164,8 +162,3 @@ int mvme147_hwclk(int op, struct rtc_time *t)
}
return 0;
}
int mvme147_set_clock_mmss (unsigned long nowtime)
{
return 0;
}

8
arch/m68k/mvme16x/config.c
View File

@ -46,7 +46,6 @@ static void mvme16x_get_model(char *model);
extern void mvme16x_sched_init(irq_handler_t handler);
extern u32 mvme16x_gettimeoffset(void);
extern int mvme16x_hwclk (int, struct rtc_time *);
extern int mvme16x_set_clock_mmss (unsigned long);
extern void mvme16x_reset (void);
int bcd2int (unsigned char b);
@ -280,7 +279,6 @@ void __init config_mvme16x(void)
mach_init_IRQ = mvme16x_init_IRQ;
arch_gettimeoffset = mvme16x_gettimeoffset;
mach_hwclk = mvme16x_hwclk;
mach_set_clock_mmss = mvme16x_set_clock_mmss;
mach_reset = mvme16x_reset;
mach_get_model = mvme16x_get_model;
mach_get_hardware_list = mvme16x_get_hardware_list;
@ -411,9 +409,3 @@ int mvme16x_hwclk(int op, struct rtc_time *t)
}
return 0;
}
int mvme16x_set_clock_mmss (unsigned long nowtime)
{
return 0;
}

30
arch/m68k/q40/config.c
View File

@ -43,7 +43,6 @@ extern void q40_sched_init(irq_handler_t handler);
static u32 q40_gettimeoffset(void);
static int q40_hwclk(int, struct rtc_time *);
static unsigned int q40_get_ss(void);
static int q40_set_clock_mmss(unsigned long);
static int q40_get_rtc_pll(struct rtc_pll_info *pll);
static int q40_set_rtc_pll(struct rtc_pll_info *pll);
@ -175,7 +174,6 @@ void __init config_q40(void)
mach_get_ss = q40_get_ss;
mach_get_rtc_pll = q40_get_rtc_pll;
mach_set_rtc_pll = q40_set_rtc_pll;
mach_set_clock_mmss = q40_set_clock_mmss;
mach_reset = q40_reset;
mach_get_model = q40_get_model;
@ -267,34 +265,6 @@ static unsigned int q40_get_ss(void)
return bcd2bin(Q40_RTC_SECS);
}
/*
* Set the minutes and seconds from seconds value 'nowtime'. Fail if
* clock is out by > 30 minutes. Logic lifted from atari code.
*/
static int q40_set_clock_mmss(unsigned long nowtime)
{
int retval = 0;
short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;
int rtc_minutes;
rtc_minutes = bcd2bin(Q40_RTC_MINS);
if ((rtc_minutes < real_minutes ?
real_minutes - rtc_minutes :
rtc_minutes - real_minutes) < 30) {
Q40_RTC_CTRL |= Q40_RTC_WRITE;
Q40_RTC_MINS = bin2bcd(real_minutes);
Q40_RTC_SECS = bin2bcd(real_seconds);
Q40_RTC_CTRL &= ~(Q40_RTC_WRITE);
} else
retval = -1;
return retval;
}
/* get and set PLL calibration of RTC clock */
#define Q40_RTC_PLL_MASK ((1<<5)-1)
#define Q40_RTC_PLL_SIGN (1<<5)