| Message ID | 4A2E45DC.8050802@gaisler.com |
|---|---|
| State | Changes Requested |
| Delegated to: | David Miller |
| Headers | show |
On Tue, Jun 09, 2009 at 01:22:04PM +0200, Konrad Eisele wrote: > From 6452f2ae1e76df7593175c73bd5248dbcbf5d212 Mon Sep 17 00:00:00 2001 > From: Konrad Eisele <konrad@gaisler.com> > Date: Tue, 9 Jun 2009 12:57:32 +0200 > Subject: [PATCH 3/7] Introduce the sparc-leon CPU type. Add sparc_leon enum, > M_LEON|M_LEON3_SOC machine. Add compilation of leon.c > in mm and kernel if CONFIG_LEON is defined. Add sparc_leon > dependent initialization to switch statements + head.S. > > Signed-off-by: Konrad Eisele <konrad@gaisler.com> > --- > arch/sparc/include/asm/machines.h | 6 +++++- > arch/sparc/include/asm/system_32.h | 1 + > arch/sparc/kernel/Makefile | 2 ++ > arch/sparc/kernel/cpu.c | 5 +++++ > arch/sparc/kernel/head_32.S | 8 ++++++++ > arch/sparc/kernel/idprom.c | 2 ++ > arch/sparc/kernel/irq_32.c | 5 +++++ > arch/sparc/kernel/setup_32.c | 5 +++++ > arch/sparc/mm/Makefile | 1 + > arch/sparc/mm/init_32.c | 1 + > arch/sparc/mm/loadmmu.c | 1 + > 11 files changed, 36 insertions(+), 1 deletions(-) > > diff --git a/arch/sparc/include/asm/machines.h > b/arch/sparc/include/asm/machines.h > index c28c2f2..cd9c099 100644 > --- a/arch/sparc/include/asm/machines.h > +++ b/arch/sparc/include/asm/machines.h > @@ -15,7 +15,7 @@ struct Sun_Machine_Models { > /* Current number of machines we know about that has an IDPROM > * machtype entry including one entry for the 0x80 OBP machines. > */ > -#define NUM_SUN_MACHINES 15 > +#define NUM_SUN_MACHINES 16 > > /* The machine type in the idprom area looks like this: > * > @@ -30,6 +30,7 @@ #define NUM_SUN_MACHINES 15 > > #define SM_ARCH_MASK 0xf0 > #define SM_SUN4 0x20 > +#define M_LEON 0x30 > #define SM_SUN4C 0x50 > #define SM_SUN4M 0x70 > #define SM_SUN4M_OBP 0x80 > @@ -41,6 +42,9 @@ #define SM_4_110 0x02 /* Sun 4/1 > #define SM_4_330 0x03 /* Sun 4/300 series */ > #define SM_4_470 0x04 /* Sun 4/400 series */ > > +/* Leon machines */ > +#define M_LEON3_SOC 0x02 /* Leon3 SoC */ > + > /* Sun4c machines Full Name - PROM NAME */ > #define SM_4C_SS1 0x01 /* Sun4c SparcStation 1 - Sun 4/60 */ > #define SM_4C_IPC 0x02 /* Sun4c SparcStation IPC - Sun 4/40 */ > diff --git a/arch/sparc/include/asm/system_32.h > b/arch/sparc/include/asm/system_32.h > index 751c8c1..890036b 100644 > --- a/arch/sparc/include/asm/system_32.h > +++ b/arch/sparc/include/asm/system_32.h > @@ -32,6 +32,7 @@ enum sparc_cpu { > sun4u = 0x05, /* V8 ploos ploos */ > sun_unknown = 0x06, > ap1000 = 0x07, /* almost a sun4m */ > + sparc_leon = 0x08, /* Leon SoC */ > }; > > /* Really, userland should not be looking at any of this... */ > diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile > index 54742e5..b2da23f 100644 > --- a/arch/sparc/kernel/Makefile > +++ b/arch/sparc/kernel/Makefile > @@ -40,6 +40,8 @@ obj-y += prom_$(BITS). > obj-y += of_device_$(BITS).o > obj-$(CONFIG_SPARC64) += prom_irqtrans.o > > +obj-$(CONFIG_LEON) += leon.o > + > obj-$(CONFIG_SPARC64) += reboot.o > obj-$(CONFIG_SPARC64) += sysfs.o > obj-$(CONFIG_SPARC64) += iommu.o > diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c > index d85c3dc..07e9d71 100644 > --- a/arch/sparc/kernel/cpu.c > +++ b/arch/sparc/kernel/cpu.c > @@ -312,7 +312,12 @@ void __cpuinit cpu_probe(void) > > psr = get_psr(); > put_psr(psr | PSR_EF); > +#ifdef CONFIG_LEON > + fpu_vers = 7; > +#else > fpu_vers = ((get_fsr() >> 17) & 0x7); > +#endif > + > put_psr(psr); > > set_cpu_and_fpu(psr_impl, psr_vers, fpu_vers); > diff --git a/arch/sparc/kernel/head_32.S b/arch/sparc/kernel/head_32.S > index f0b4b51..84f8138 100644 > --- a/arch/sparc/kernel/head_32.S > +++ b/arch/sparc/kernel/head_32.S > @@ -814,6 +814,10 @@ got_prop: > > cmp %l1, ' ' > be 1f > +#if defined(CONFIG_LEON) > + cmp %l1, '2' ! leon2 or compatible > + be 1f > +#endif > cmp %l1, 'c' > be 1f > cmp %l1, 'm' > @@ -836,6 +840,10 @@ got_prop: > be sun4m_init > cmp %l1, 'd' ! Let us see how the beast > will die > be sun4d_init > +#if defined(CONFIG_LEON) > + cmp %l1, '2' ! leon2 or compatible > + be sun4c_continue_boot > +#endif > nop > > /* Jump into mmu context zero. */ > diff --git a/arch/sparc/kernel/idprom.c b/arch/sparc/kernel/idprom.c > index 57922f6..6dc677a 100644 > --- a/arch/sparc/kernel/idprom.c > +++ b/arch/sparc/kernel/idprom.c > @@ -31,6 +31,8 @@ static struct Sun_Machine_Models Sun_Mac > { .name = "Sun 4/200 Series", .id_machtype = (SM_SUN4 | SM_4_260) }, > { .name = "Sun 4/300 Series", .id_machtype = (SM_SUN4 | SM_4_330) }, > { .name = "Sun 4/400 Series", .id_machtype = (SM_SUN4 | SM_4_470) }, > +/* Now Leon */ > +{ "Leon3 System-on-a-Chip", .id_machtype = (M_LEON | M_LEON3_SOC) > }, > /* Now, Sun4c's */ > { .name = "Sun4c SparcStation 1", .id_machtype = (SM_SUN4C | SM_4C_SS1) > }, > { .name = "Sun4c SparcStation IPC", .id_machtype = (SM_SUN4C | SM_4C_IPC) > }, > diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c > index ad800b8..34d9cff 100644 > --- a/arch/sparc/kernel/irq_32.c > +++ b/arch/sparc/kernel/irq_32.c > @@ -639,6 +639,7 @@ void __init init_IRQ(void) > extern void sun4c_init_IRQ( void ); > extern void sun4m_init_IRQ( void ); > extern void sun4d_init_IRQ( void ); > + extern void leon_init_IRQ(void); > > switch(sparc_cpu_model) { > case sun4c: > @@ -661,6 +662,10 @@ #endif > sun4d_init_IRQ(); > break; > > + case sparc_leon: > + leon_init_IRQ(); > + break; > + > default: > prom_printf("Cannot initialize IRQs on this Sun machine..."); > break; > diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c > index 998cadb..09c092d 100644 > --- a/arch/sparc/kernel/setup_32.c > +++ b/arch/sparc/kernel/setup_32.c > @@ -235,6 +235,8 @@ void __init setup_arch(char **cmdline_p) > sparc_cpu_model = sun4e; > if (!strcmp(&cputypval,"sun4u")) > sparc_cpu_model = sun4u; > + if (!strcmp(&cputypval, "leon2")) > + sparc_cpu_model = sparc_leon; > > printk("ARCH: "); > switch(sparc_cpu_model) { > @@ -256,6 +258,9 @@ void __init setup_arch(char **cmdline_p) > case sun4u: > printk("SUN4U\n"); > break; > + case sparc_leon: > + printk("LEON\n"); > + break; > default: > printk("UNKNOWN!\n"); > break; > diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile > index 681abe0..14fcefe 100644 > --- a/arch/sparc/mm/Makefile > +++ b/arch/sparc/mm/Makefile > @@ -11,6 +11,7 @@ obj-$(CONFIG_SPARC32) += loadmmu.o > obj-y += generic_$(BITS).o > obj-$(CONFIG_SPARC32) += extable.o btfixup.o srmmu.o iommu.o io-unit.o > obj-$(CONFIG_SPARC32) += hypersparc.o viking.o tsunami.o swift.o > +obj-$(CONFIG_LEON) += leon.o We have two leon.c (+leon.o), this is confusing. Consider a better naming scheme. leon_mm.c, leon_kernel.c for example. -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/sparc/include/asm/machines.h b/arch/sparc/include/asm/machines.h index c28c2f2..cd9c099 100644 --- a/arch/sparc/include/asm/machines.h +++ b/arch/sparc/include/asm/machines.h @@ -15,7 +15,7 @@ struct Sun_Machine_Models { /* Current number of machines we know about that has an IDPROM * machtype entry including one entry for the 0x80 OBP machines. */ -#define NUM_SUN_MACHINES 15 +#define NUM_SUN_MACHINES 16 /* The machine type in the idprom area looks like this: * @@ -30,6 +30,7 @@ #define NUM_SUN_MACHINES 15 #define SM_ARCH_MASK 0xf0 #define SM_SUN4 0x20 +#define M_LEON 0x30 #define SM_SUN4C 0x50 #define SM_SUN4M 0x70 #define SM_SUN4M_OBP 0x80 @@ -41,6 +42,9 @@ #define SM_4_110 0x02 /* Sun 4/1 #define SM_4_330 0x03 /* Sun 4/300 series */ #define SM_4_470 0x04 /* Sun 4/400 series */ +/* Leon machines */ +#define M_LEON3_SOC 0x02 /* Leon3 SoC */ + /* Sun4c machines Full Name - PROM NAME */ #define SM_4C_SS1 0x01 /* Sun4c SparcStation 1 - Sun 4/60 */ #define SM_4C_IPC 0x02 /* Sun4c SparcStation IPC - Sun 4/40 */ diff --git a/arch/sparc/include/asm/system_32.h b/arch/sparc/include/asm/system_32.h index 751c8c1..890036b 100644 --- a/arch/sparc/include/asm/system_32.h +++ b/arch/sparc/include/asm/system_32.h @@ -32,6 +32,7 @@ enum sparc_cpu { sun4u = 0x05, /* V8 ploos ploos */ sun_unknown = 0x06, ap1000 = 0x07, /* almost a sun4m */ + sparc_leon = 0x08, /* Leon SoC */ }; /* Really, userland should not be looking at any of this... */ diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile index 54742e5..b2da23f 100644 --- a/arch/sparc/kernel/Makefile +++ b/arch/sparc/kernel/Makefile @@ -40,6 +40,8 @@ obj-y += prom_$(BITS). obj-y += of_device_$(BITS).o obj-$(CONFIG_SPARC64) += prom_irqtrans.o +obj-$(CONFIG_LEON) += leon.o + obj-$(CONFIG_SPARC64) += reboot.o obj-$(CONFIG_SPARC64) += sysfs.o obj-$(CONFIG_SPARC64) += iommu.o diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c index d85c3dc..07e9d71 100644 --- a/arch/sparc/kernel/cpu.c +++ b/arch/sparc/kernel/cpu.c @@ -312,7 +312,12 @@ void __cpuinit cpu_probe(void) psr = get_psr(); put_psr(psr | PSR_EF); +#ifdef CONFIG_LEON + fpu_vers = 7; +#else fpu_vers = ((get_fsr() >> 17) & 0x7); +#endif + put_psr(psr); set_cpu_and_fpu(psr_impl, psr_vers, fpu_vers); diff --git a/arch/sparc/kernel/head_32.S b/arch/sparc/kernel/head_32.S index f0b4b51..84f8138 100644 --- a/arch/sparc/kernel/head_32.S +++ b/arch/sparc/kernel/head_32.S @@ -814,6 +814,10 @@ got_prop: cmp %l1, ' ' be 1f +#if defined(CONFIG_LEON) + cmp %l1, '2' ! leon2 or compatible + be 1f +#endif cmp %l1, 'c' be 1f cmp %l1, 'm' @@ -836,6 +840,10 @@ got_prop: be sun4m_init cmp %l1, 'd' ! Let us see how the beast will die be sun4d_init +#if defined(CONFIG_LEON) + cmp %l1, '2' ! leon2 or compatible + be sun4c_continue_boot +#endif nop /* Jump into mmu context zero. */ diff --git a/arch/sparc/kernel/idprom.c b/arch/sparc/kernel/idprom.c index 57922f6..6dc677a 100644 --- a/arch/sparc/kernel/idprom.c +++ b/arch/sparc/kernel/idprom.c @@ -31,6 +31,8 @@ static struct Sun_Machine_Models Sun_Mac { .name = "Sun 4/200 Series", .id_machtype = (SM_SUN4 | SM_4_260) }, { .name = "Sun 4/300 Series", .id_machtype = (SM_SUN4 | SM_4_330) }, { .name = "Sun 4/400 Series", .id_machtype = (SM_SUN4 | SM_4_470) }, +/* Now Leon */ +{ "Leon3 System-on-a-Chip", .id_machtype = (M_LEON | M_LEON3_SOC) }, /* Now, Sun4c's */ { .name = "Sun4c SparcStation 1", .id_machtype = (SM_SUN4C | SM_4C_SS1) }, { .name = "Sun4c SparcStation IPC", .id_machtype = (SM_SUN4C | SM_4C_IPC) }, diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c index ad800b8..34d9cff 100644 --- a/arch/sparc/kernel/irq_32.c +++ b/arch/sparc/kernel/irq_32.c @@ -639,6 +639,7 @@ void __init init_IRQ(void) extern void sun4c_init_IRQ( void ); extern void sun4m_init_IRQ( void ); extern void sun4d_init_IRQ( void ); + extern void leon_init_IRQ(void); switch(sparc_cpu_model) { case sun4c: @@ -661,6 +662,10 @@ #endif sun4d_init_IRQ(); break; + case sparc_leon: + leon_init_IRQ(); + break; + default: prom_printf("Cannot initialize IRQs on this Sun machine..."); break; diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c index 998cadb..09c092d 100644 --- a/arch/sparc/kernel/setup_32.c +++ b/arch/sparc/kernel/setup_32.c @@ -235,6 +235,8 @@ void __init setup_arch(char **cmdline_p) sparc_cpu_model = sun4e; if (!strcmp(&cputypval,"sun4u")) sparc_cpu_model = sun4u; + if (!strcmp(&cputypval, "leon2")) + sparc_cpu_model = sparc_leon; printk("ARCH: "); switch(sparc_cpu_model) { @@ -256,6 +258,9 @@ void __init setup_arch(char **cmdline_p) case sun4u: printk("SUN4U\n"); break; + case sparc_leon: + printk("LEON\n"); + break; default: printk("UNKNOWN!\n"); break; diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile index 681abe0..14fcefe 100644 --- a/arch/sparc/mm/Makefile +++ b/arch/sparc/mm/Makefile @@ -11,6 +11,7 @@ obj-$(CONFIG_SPARC32) += loadmmu.o obj-y += generic_$(BITS).o obj-$(CONFIG_SPARC32) += extable.o btfixup.o srmmu.o iommu.o io-unit.o obj-$(CONFIG_SPARC32) += hypersparc.o viking.o tsunami.o swift.o +obj-$(CONFIG_LEON) += leon.o # Only used by sparc64 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index 26bb391..b4ef3e4 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -328,6 +328,7 @@ void __init paging_init(void) break; case sun4m: case sun4d: + case sparc_leon: srmmu_paging_init(); sparc_unmapped_base = 0x50000000; BTFIXUPSET_SETHI(sparc_unmapped_base, 0x50000000); diff --git a/arch/sparc/mm/loadmmu.c b/arch/sparc/mm/loadmmu.c index 652be05..82ec8f6 100644 --- a/arch/sparc/mm/loadmmu.c +++ b/arch/sparc/mm/loadmmu.c @@ -33,6 +33,7 @@ void __init load_mmu(void) break; case sun4m: case sun4d: + case sparc_leon: ld_mmu_srmmu(); break; default: