diff options
Diffstat (limited to 'target/linux/amazon-2.6/files/arch/mips/amazon/setup.c')
| -rw-r--r-- | target/linux/amazon-2.6/files/arch/mips/amazon/setup.c | 58 |
1 files changed, 14 insertions, 44 deletions
diff --git a/target/linux/amazon-2.6/files/arch/mips/amazon/setup.c b/target/linux/amazon-2.6/files/arch/mips/amazon/setup.c index 4cd3b9b97..a96b565c6 100644 --- a/target/linux/amazon-2.6/files/arch/mips/amazon/setup.c +++ b/target/linux/amazon-2.6/files/arch/mips/amazon/setup.c @@ -18,6 +18,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. * */ + #include <linux/init.h> #include <linux/sched.h> #include <linux/module.h> @@ -44,7 +45,7 @@ unsigned int amazon_get_cpu_hz(void) /*-----------------------------------*/ /**CGU CPU Clock Reduction Register***/ /*-----------------------------------*/ - switch((*AMAZON_CGU_CPUCRD) & 0x3){ + switch(amazon_readl(AMAZON_CGU_CPUCRD) & 0x3){ case 0: /*divider ration 1/1, 235 MHz clock */ return 235000000; @@ -69,7 +70,7 @@ unsigned int amazon_get_fpi_hz(void) /*-------------------------------------*/ /***CGU Clock Divider Select Register***/ /*-------------------------------------*/ - switch ((*AMAZON_CGU_DIV) & 0x3) + switch (amazon_readl(AMAZON_CGU_DIV) & 0x3) { case 1: return clkCPU >> 1; @@ -81,20 +82,19 @@ unsigned int amazon_get_fpi_hz(void) } } -/* get the CPU version number - based on sysLib.c from VxWorks sources */ /* this doesn't really belong here, but it's a convenient location */ unsigned int amazon_get_cpu_ver(void) { static unsigned int cpu_ver = 0; if (cpu_ver == 0) - cpu_ver = *AMAZON_MCD_CHIPID & 0xFFFFF000; + cpu_ver = amazon_readl(AMAZON_MCD_CHIPID) & 0xFFFFF000; return cpu_ver; } void amazon_time_init(void) { mips_hpt_frequency = amazon_get_cpu_hz()/2; - printk("mips_hpt_frequency:%d\n",mips_hpt_frequency); + printk("mips_hpt_frequency:%d\n", mips_hpt_frequency); } extern int hr_time_resolution; @@ -121,43 +121,13 @@ void __init plat_timer_setup(struct irqaction *irq) /* cpu counter for timer interrupts */ setup_irq(MIPS_CPU_TIMER_IRQ, irq); -#if 0 - /* to generate the first CPU timer interrupt */ - write_c0_compare(read_c0_count() + amazon_get_cpu_hz()/(2*HZ)); -#endif - /* enable the timer in the PMU */ - *(AMAZON_PMU_PWDCR) = (*(AMAZON_PMU_PWDCR))| AMAZON_PMU_PWDCR_GPT|AMAZON_PMU_PWDCR_FPI; - /* setup the GPTU for timer tick f_fpi == f_gptu*/ - *(AMAZON_GPTU_CLC) = 0x100; - - *(AMAZON_GPTU_CAPREL) = 0xffff; - *(AMAZON_GPTU_T6CON) = 0x80C0; - //setup_irq(AMAZON_TIMER6_INT,&hrt_irqaction); - -#if 0 -#ifdef CONFIG_HIGH_RES_TIMERS - /* GPTU timer 6 */ - int retval; - if ( hr_time_resolution > 200000000 || hr_time_resolution < 40) { - prom_printf("hr_time_resolution is out of range, HIGH_RES_TIMER is diabled.\n"); - return; - } + amazon_writel(amazon_readl(AMAZON_PMU_PWDCR)| AMAZON_PMU_PWDCR_GPT|AMAZON_PMU_PWDCR_FPI, AMAZON_PMU_PWDCR); - /* enable the timer in the PMU */ - *(AMAZON_PMU_PWDCR) = (*(AMAZON_PMU_PWDCR))| AMAZON_PMU_PWDCR_GPT|AMAZON_PMU_PWDCR_FPI; /* setup the GPTU for timer tick f_fpi == f_gptu*/ - *(AMAZON_GPTU_CLC) = 0x100; - - *(AMAZON_GPTU_CAPREL) = 0xffff; - *(AMAZON_GPTU_T6CON) = 0x80C0; - - retval = setup_irq(AMAZON_TIMER6_INT,&hrt_irqaction); - if (retval){ - prom_printf("reqeust_irq failed %d. HIGH_RES_TIMER is diabled\n",AMAZON_TIMER6_INT); - } -#endif //CONFIG_HIGH_RES_TIMERS -#endif + amazon_writel(0x0100, AMAZON_GPTU_CLC); + amazon_writel(0xffff, AMAZON_GPTU_CAPREL); + amazon_writel(0x80C0, AMAZON_GPTU_T6CON); } void __init plat_mem_setup(void) @@ -165,7 +135,7 @@ void __init plat_mem_setup(void) u32 chipid = 0; u32 part_no = 0; - chipid = *(AMAZON_MCD_CHIPID); + chipid = amazon_readl(AMAZON_MCD_CHIPID); part_no = AMAZON_MCD_CHIPID_PART_NUMBER_GET(chipid); if(part_no == AMAZON_CHIPID_YANGTSE){ @@ -180,17 +150,17 @@ void __init plat_mem_setup(void) board_time_init = amazon_time_init; //stop reset TPE and DFE - *(AMAZON_RST_REQ) = 0x0; + amazon_writel(0, AMAZON_RST_REQ); //clock - *(AMAZON_PMU_PWDCR) = 0x3fff; + amazon_writel(0x3fff, AMAZON_PMU_PWDCR); //reenable trace capability - part_no = *(AMAZON_BCU_ECON); + part_no = readl(AMAZON_BCU_ECON); } static void amazon_machine_restart(char *command) { local_irq_disable(); - *AMAZON_RST_REQ = AMAZON_RST_ALL; + amazon_writel(AMAZON_RST_ALL, AMAZON_RST_REQ); for (;;) ; } |