From patchwork Fri Jun 12 08:44:04 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Konrad Eisele X-Patchwork-Id: 28627 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@bilbo.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from ozlabs.org (ozlabs.org [203.10.76.45]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mx.ozlabs.org", Issuer "CA Cert Signing Authority" (verified OK)) by bilbo.ozlabs.org (Postfix) with ESMTPS id 7532FB722B for ; Fri, 12 Jun 2009 18:41:45 +1000 (EST) Received: by ozlabs.org (Postfix) id 67FECDDD0B; Fri, 12 Jun 2009 18:41:45 +1000 (EST) Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by ozlabs.org (Postfix) with ESMTP id E4AA6DDD04 for ; Fri, 12 Jun 2009 18:41:44 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932943AbZFLIlN (ORCPT ); Fri, 12 Jun 2009 04:41:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932937AbZFLIlN (ORCPT ); Fri, 12 Jun 2009 04:41:13 -0400 Received: from mail175c2.megamailservers.com ([69.49.111.75]:52518 "EHLO mail175c2.megamailservers.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932924AbZFLIlJ (ORCPT ); Fri, 12 Jun 2009 04:41:09 -0400 X-Authenticated-User: konrad.gaisler.com Received: from localhost.localdomain (c-10a5e155.260-1-64736c10.cust.bredbandsbolaget.se [85.225.165.16]) (authenticated bits=0) by mail175c2.megamailservers.com (8.13.6/8.13.1) with ESMTP id n5C8en9t032317; Fri, 12 Jun 2009 04:40:53 -0400 From: konrad@gaisler.com To: sparclinux@vger.kernel.org Cc: sam@ravnborg.org, julian.calaby@gmail.com, Konrad Eisele Subject: round2 [PATCH 3/6] 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_SPARC_LEON is defined. Add sparc_leon dependent initialization to switch statements + head.S. Date: Fri, 12 Jun 2009 10:44:04 +0200 Message-Id: <1244796244-7305-1-git-send-email-konrad@gaisler.com> X-Mailer: git-send-email 1.6.3.2 In-Reply-To: <4A320E2B.2070701@gaisler.com> References: <4A320E2B.2070701@gaisler.com> Sender: sparclinux-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: sparclinux@vger.kernel.org From: Konrad Eisele --- 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 | 7 +++++++ arch/sparc/kernel/setup_32.c | 5 +++++ arch/sparc/mm/Makefile | 1 + arch/sparc/mm/init_32.c | 4 ++++ arch/sparc/mm/loadmmu.c | 1 + 11 files changed, 41 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 @@ struct Sun_Machine_Models { #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 @@ struct Sun_Machine_Models { #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..8518fba 100644 --- a/arch/sparc/kernel/Makefile +++ b/arch/sparc/kernel/Makefile @@ -40,6 +40,8 @@ obj-y += prom_$(BITS).o obj-y += of_device_$(BITS).o obj-$(CONFIG_SPARC64) += prom_irqtrans.o +obj-$(CONFIG_SPARC_LEON)+= leon_kernel.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..1446df9 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_SPARC_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..847b0ac 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 +#ifdef CONFIG_SPARC_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 +#ifdef CONFIG_SPARC_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_Machines[NUM_SUN_MACHINES] = { { .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..c51641e 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 +662,12 @@ void __init init_IRQ(void) sun4d_init_IRQ(); break; +#ifdef CONFIG_SPARC_LEON + case sparc_leon: + leon_init_IRQ(); + break; +#endif + 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..79836a7 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_SPARC_LEON)+= leon_mm.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..54114ad 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -34,6 +34,7 @@ #include /* bug in asm-generic/tlb.h: check_pgt_cache */ #include #include +#include DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); @@ -326,6 +327,9 @@ void __init paging_init(void) sparc_unmapped_base = 0xe0000000; BTFIXUPSET_SETHI(sparc_unmapped_base, 0xe0000000); break; + case sparc_leon: + leon_init(); + /* fall through */ case sun4m: case sun4d: srmmu_paging_init(); 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: