diff options
Diffstat (limited to 'arch/powerpc/platforms/8xx/m8xx_setup.c')
| -rw-r--r-- | arch/powerpc/platforms/8xx/m8xx_setup.c | 154 |
1 files changed, 52 insertions, 102 deletions
diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c index f1693550c70c..d35eda80e9e6 100644 --- a/arch/powerpc/platforms/8xx/m8xx_setup.c +++ b/arch/powerpc/platforms/8xx/m8xx_setup.c @@ -10,57 +10,33 @@ * bootup setup stuff.. */ -#include <linux/errno.h> -#include <linux/sched.h> #include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/stddef.h> -#include <linux/unistd.h> -#include <linux/ptrace.h> #include <linux/slab.h> -#include <linux/user.h> -#include <linux/a.out.h> -#include <linux/tty.h> -#include <linux/major.h> #include <linux/interrupt.h> -#include <linux/reboot.h> #include <linux/init.h> -#include <linux/initrd.h> -#include <linux/ioport.h> -#include <linux/bootmem.h> -#include <linux/seq_file.h> -#include <linux/root_dev.h> #include <linux/time.h> #include <linux/rtc.h> -#include <linux/fsl_devices.h> -#include <asm/mmu.h> -#include <asm/reg.h> -#include <asm/residual.h> #include <asm/io.h> -#include <asm/pgtable.h> #include <asm/mpc8xx.h> #include <asm/8xx_immap.h> -#include <asm/machdep.h> -#include <asm/bootinfo.h> -#include <asm/time.h> #include <asm/prom.h> #include <asm/fs_pd.h> #include <mm/mmu_decl.h> -#include "sysdev/mpc8xx_pic.h" +#include <sysdev/mpc8xx_pic.h> +#include <sysdev/commproc.h> #ifdef CONFIG_PCMCIA_M8XX struct mpc8xx_pcmcia_ops m8xx_pcmcia_ops; #endif void m8xx_calibrate_decr(void); -extern void m8xx_wdt_handler_install(bd_t *bp); extern int cpm_pic_init(void); extern int cpm_get_irq(void); /* A place holder for time base interrupts, if they are ever enabled. */ -irqreturn_t timebase_interrupt(int irq, void * dev) +static irqreturn_t timebase_interrupt(int irq, void *dev) { printk ("timebase_interrupt()\n"); @@ -77,7 +53,7 @@ static struct irqaction tbint_irqaction = { void __init __attribute__ ((weak)) init_internal_rtc(void) { - sit8xx_t *sys_tmr = (sit8xx_t *) immr_map(im_sit); + 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)); @@ -89,24 +65,24 @@ init_internal_rtc(void) static int __init get_freq(char *name, unsigned long *val) { - struct device_node *cpu; - const unsigned int *fp; - int found = 0; + struct device_node *cpu; + const unsigned int *fp; + int found = 0; - /* The cpu node should have timebase and clock frequency properties */ - cpu = of_find_node_by_type(NULL, "cpu"); + /* The cpu node should have timebase and clock frequency properties */ + cpu = of_find_node_by_type(NULL, "cpu"); - if (cpu) { - fp = of_get_property(cpu, name, NULL); - if (fp) { - found = 1; - *val = *fp; - } + if (cpu) { + fp = of_get_property(cpu, name, NULL); + if (fp) { + found = 1; + *val = *fp; + } - of_node_put(cpu); - } + of_node_put(cpu); + } - return found; + return found; } /* The decrementer counts at the system (internal) clock frequency divided by @@ -116,13 +92,13 @@ static int __init get_freq(char *name, unsigned long *val) void __init mpc8xx_calibrate_decr(void) { struct device_node *cpu; - cark8xx_t *clk_r1; - car8xx_t *clk_r2; - sitk8xx_t *sys_tmr1; - sit8xx_t *sys_tmr2; + 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 = (cark8xx_t *) immr_map(im_clkrstk); + clk_r1 = immr_map(im_clkrstk); /* Unlock the SCCR. */ out_be32(&clk_r1->cark_sccrk, ~KAPWR_KEY); @@ -130,24 +106,24 @@ void __init mpc8xx_calibrate_decr(void) immr_unmap(clk_r1); /* Force all 8xx processors to use divide by 16 processor clock. */ - clk_r2 = (car8xx_t *) immr_map(im_clkrst); + clk_r2 = immr_map(im_clkrst); setbits32(&clk_r2->car_sccr, 0x02000000); immr_unmap(clk_r2); /* Processor frequency is MHz. */ - ppc_tb_freq = 50000000; - if (!get_freq("bus-frequency", &ppc_tb_freq)) { - printk(KERN_ERR "WARNING: Estimating decrementer frequency " - "(not found)\n"); - } - ppc_tb_freq /= 16; - ppc_proc_freq = 50000000; - if (!get_freq("clock-frequency", &ppc_proc_freq)) - printk(KERN_ERR "WARNING: Estimating processor frequency" - "(not found)\n"); - - printk("Decrementer Frequency = 0x%lx\n", ppc_tb_freq); + ppc_tb_freq = 50000000; + if (!get_freq("bus-frequency", &ppc_tb_freq)) { + printk(KERN_ERR "WARNING: Estimating decrementer frequency " + "(not found)\n"); + } + ppc_tb_freq /= 16; + ppc_proc_freq = 50000000; + if (!get_freq("clock-frequency", &ppc_proc_freq)) + printk(KERN_ERR "WARNING: Estimating processor frequency" + "(not found)\n"); + + printk("Decrementer Frequency = 0x%lx\n", ppc_tb_freq); /* Perform some more timer/timebase initialization. This used * to be done elsewhere, but other changes caused it to get @@ -164,7 +140,7 @@ void __init mpc8xx_calibrate_decr(void) * we guarantee the registers are locked, then we unlock them * for our use. */ - sys_tmr1 = (sitk8xx_t *) immr_map(im_sitk); + 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); @@ -180,24 +156,17 @@ void __init mpc8xx_calibrate_decr(void) * we have to enable the timebase). The decrementer interrupt * is wired into the vector table, nothing to do here for that. */ - cpu = of_find_node_by_type(NULL, "cpu"); - virq= irq_of_parse_and_map(cpu, 0); + cpu = of_find_node_by_type(NULL, "cpu"); + virq= irq_of_parse_and_map(cpu, 0); irq = irq_map[virq].hwirq; - sys_tmr2 = (sit8xx_t *) immr_map(im_sit); + 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); if (setup_irq(virq, &tbint_irqaction)) panic("Could not allocate timer IRQ!"); - -#ifdef CONFIG_8xx_WDT - /* Install watchdog timer handler early because it might be - * already enabled by the bootloader - */ - m8xx_wdt_handler_install(binfo); -#endif } /* The RTC on the MPC8xx is an internal register. @@ -207,14 +176,14 @@ void __init mpc8xx_calibrate_decr(void) int mpc8xx_set_rtc_time(struct rtc_time *tm) { - sitk8xx_t *sys_tmr1; - sit8xx_t *sys_tmr2; + sitk8xx_t __iomem *sys_tmr1; + sit8xx_t __iomem *sys_tmr2; int time; - sys_tmr1 = (sitk8xx_t *) immr_map(im_sitk); - sys_tmr2 = (sit8xx_t *) immr_map(im_sit); + sys_tmr1 = immr_map(im_sitk); + sys_tmr2 = immr_map(im_sit); time = mktime(tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday, - tm->tm_hour, tm->tm_min, tm->tm_sec); + tm->tm_hour, tm->tm_min, tm->tm_sec); out_be32(&sys_tmr1->sitk_rtck, KAPWR_KEY); out_be32(&sys_tmr2->sit_rtc, time); @@ -228,21 +197,20 @@ int mpc8xx_set_rtc_time(struct rtc_time *tm) void mpc8xx_get_rtc_time(struct rtc_time *tm) { unsigned long data; - sit8xx_t *sys_tmr = (sit8xx_t *) immr_map(im_sit); + sit8xx_t __iomem *sys_tmr = immr_map(im_sit); /* Get time from the RTC. */ data = in_be32(&sys_tmr->sit_rtc); to_tm(data, tm); - tm->tm_year -= 1900; - tm->tm_mon -= 1; + tm->tm_year -= 1900; + tm->tm_mon -= 1; immr_unmap(sys_tmr); return; } void mpc8xx_restart(char *cmd) { - __volatile__ unsigned char dummy; - car8xx_t * clk_r = (car8xx_t *) immr_map(im_clkrst); + car8xx_t __iomem *clk_r = immr_map(im_clkrst); local_irq_disable(); @@ -252,26 +220,8 @@ void mpc8xx_restart(char *cmd) */ mtmsr(mfmsr() & ~0x1000); - dummy = in_8(&clk_r->res[0]); - printk("Restart failed\n"); - while(1); -} - -void mpc8xx_show_cpuinfo(struct seq_file *m) -{ - struct device_node *root; - uint memsize = total_memory; - const char *model = ""; - - seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n"); - - root = of_find_node_by_path("/"); - if (root) - model = of_get_property(root, "model", NULL); - seq_printf(m, "Machine\t\t: %s\n", model); - of_node_put(root); - - seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); + in_8(&clk_r->res[0]); + panic("Restart failed\n"); } static void cpm_cascade(unsigned int irq, struct irq_desc *desc) @@ -298,7 +248,7 @@ void __init m8xx_pic_init(void) int irq; if (mpc8xx_pic_init()) { - printk(KERN_ERR "Failed interrupt 8xx controller initialization\n"); + printk(KERN_ERR "Failed interrupt 8xx controller initialization\n"); return; } |