diff options
Diffstat (limited to 'arch/powerpc/platforms/8xx/m8xx_setup.c')
| -rw-r--r-- | arch/powerpc/platforms/8xx/m8xx_setup.c | 79 |
1 files changed, 22 insertions, 57 deletions
diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c index 24f358f86d16..2336b687bc96 100644 --- a/arch/powerpc/platforms/8xx/m8xx_setup.c +++ b/arch/powerpc/platforms/8xx/m8xx_setup.c @@ -22,7 +22,6 @@ #include <asm/io.h> #include <asm/8xx_immap.h> -#include <asm/fs_pd.h> #include <mm/mmu_decl.h> #include "pic.h" @@ -37,20 +36,6 @@ static irqreturn_t timebase_interrupt(int irq, void *dev) return IRQ_HANDLED; } -/* per-board overridable init_internal_rtc() function. */ -void __init __attribute__ ((weak)) -init_internal_rtc(void) -{ - sit8xx_t __iomem *sys_tmr = immr_map(im_sit); - - /* Disable the RTC one second and alarm interrupts. */ - clrbits16(&sys_tmr->sit_rtcsc, (RTCSC_SIE | RTCSC_ALE)); - - /* Enable the RTC */ - setbits16(&sys_tmr->sit_rtcsc, (RTCSC_RTF | RTCSC_RTE)); - immr_unmap(sys_tmr); -} - static int __init get_freq(char *name, unsigned long *val) { struct device_node *cpu; @@ -80,23 +65,14 @@ static int __init get_freq(char *name, unsigned long *val) void __init mpc8xx_calibrate_decr(void) { struct device_node *cpu; - cark8xx_t __iomem *clk_r1; - car8xx_t __iomem *clk_r2; - sitk8xx_t __iomem *sys_tmr1; - sit8xx_t __iomem *sys_tmr2; int irq, virq; - clk_r1 = immr_map(im_clkrstk); - /* Unlock the SCCR. */ - out_be32(&clk_r1->cark_sccrk, ~KAPWR_KEY); - out_be32(&clk_r1->cark_sccrk, KAPWR_KEY); - immr_unmap(clk_r1); + out_be32(&mpc8xx_immr->im_clkrstk.cark_sccrk, ~KAPWR_KEY); + out_be32(&mpc8xx_immr->im_clkrstk.cark_sccrk, KAPWR_KEY); /* Force all 8xx processors to use divide by 16 processor clock. */ - clk_r2 = immr_map(im_clkrst); - setbits32(&clk_r2->car_sccr, 0x02000000); - immr_unmap(clk_r2); + setbits32(&mpc8xx_immr->im_clkrst.car_sccr, 0x02000000); /* Processor frequency is MHz. */ @@ -123,16 +99,18 @@ void __init mpc8xx_calibrate_decr(void) * we guarantee the registers are locked, then we unlock them * for our use. */ - sys_tmr1 = immr_map(im_sitk); - out_be32(&sys_tmr1->sitk_tbscrk, ~KAPWR_KEY); - out_be32(&sys_tmr1->sitk_rtcsck, ~KAPWR_KEY); - out_be32(&sys_tmr1->sitk_tbk, ~KAPWR_KEY); - out_be32(&sys_tmr1->sitk_tbscrk, KAPWR_KEY); - out_be32(&sys_tmr1->sitk_rtcsck, KAPWR_KEY); - out_be32(&sys_tmr1->sitk_tbk, KAPWR_KEY); - immr_unmap(sys_tmr1); + out_be32(&mpc8xx_immr->im_sitk.sitk_tbscrk, ~KAPWR_KEY); + out_be32(&mpc8xx_immr->im_sitk.sitk_rtcsck, ~KAPWR_KEY); + out_be32(&mpc8xx_immr->im_sitk.sitk_tbk, ~KAPWR_KEY); + out_be32(&mpc8xx_immr->im_sitk.sitk_tbscrk, KAPWR_KEY); + out_be32(&mpc8xx_immr->im_sitk.sitk_rtcsck, KAPWR_KEY); + out_be32(&mpc8xx_immr->im_sitk.sitk_tbk, KAPWR_KEY); + + /* Disable the RTC one second and alarm interrupts. */ + clrbits16(&mpc8xx_immr->im_sit.sit_rtcsc, (RTCSC_SIE | RTCSC_ALE)); - init_internal_rtc(); + /* Enable the RTC */ + setbits16(&mpc8xx_immr->im_sit.sit_rtcsc, (RTCSC_RTF | RTCSC_RTE)); /* Enabling the decrementer also enables the timebase interrupts * (or from the other point of view, to get decrementer interrupts @@ -144,10 +122,8 @@ void __init mpc8xx_calibrate_decr(void) of_node_put(cpu); irq = virq_to_hw(virq); - sys_tmr2 = immr_map(im_sit); - out_be16(&sys_tmr2->sit_tbscr, ((1 << (7 - (irq/2))) << 8) | - (TBSCR_TBF | TBSCR_TBE)); - immr_unmap(sys_tmr2); + out_be16(&mpc8xx_immr->im_sit.sit_tbscr, + ((1 << (7 - (irq / 2))) << 8) | (TBSCR_TBF | TBSCR_TBE)); if (request_irq(virq, timebase_interrupt, IRQF_NO_THREAD, "tbint", NULL)) @@ -161,47 +137,36 @@ void __init mpc8xx_calibrate_decr(void) int mpc8xx_set_rtc_time(struct rtc_time *tm) { - sitk8xx_t __iomem *sys_tmr1; - sit8xx_t __iomem *sys_tmr2; time64_t time; - sys_tmr1 = immr_map(im_sitk); - sys_tmr2 = immr_map(im_sit); time = rtc_tm_to_time64(tm); - out_be32(&sys_tmr1->sitk_rtck, KAPWR_KEY); - out_be32(&sys_tmr2->sit_rtc, (u32)time); - out_be32(&sys_tmr1->sitk_rtck, ~KAPWR_KEY); + out_be32(&mpc8xx_immr->im_sitk.sitk_rtck, KAPWR_KEY); + out_be32(&mpc8xx_immr->im_sit.sit_rtc, (u32)time); + out_be32(&mpc8xx_immr->im_sitk.sitk_rtck, ~KAPWR_KEY); - immr_unmap(sys_tmr2); - immr_unmap(sys_tmr1); return 0; } void mpc8xx_get_rtc_time(struct rtc_time *tm) { unsigned long data; - sit8xx_t __iomem *sys_tmr = immr_map(im_sit); /* Get time from the RTC. */ - data = in_be32(&sys_tmr->sit_rtc); + data = in_be32(&mpc8xx_immr->im_sit.sit_rtc); rtc_time64_to_tm(data, tm); - immr_unmap(sys_tmr); return; } void __noreturn mpc8xx_restart(char *cmd) { - car8xx_t __iomem *clk_r = immr_map(im_clkrst); - - local_irq_disable(); - setbits32(&clk_r->car_plprcr, 0x00000080); + setbits32(&mpc8xx_immr->im_clkrst.car_plprcr, 0x00000080); /* Clear the ME bit in MSR to cause checkstop on machine check */ mtmsr(mfmsr() & ~0x1000); - in_8(&clk_r->res[0]); + in_8(&mpc8xx_immr->im_clkrst.res[0]); panic("Restart failed\n"); } |