aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-03-17 17:59:01 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-03-17 17:59:01 +1100
commit831532035b12a5f7b600515a6f4da0b207b82d6e (patch)
tree8abc96a8098984f517c6dadba6b4f3176cd519cb
parentb0aea14bdc4a9ee5d1e8cb78488263d6ce32095e (diff)
parent21a06b0459f5e3ecdeccacfbf076c229514c1840 (diff)
downloadlinaro-lsk-831532035b12a5f7b600515a6f4da0b207b82d6e.tar.gz
Merge remote branch 'jwb/next' into next
-rw-r--r--arch/powerpc/boot/dts/canyonlands.dts24
-rw-r--r--arch/powerpc/include/asm/cputable.h3
-rw-r--r--arch/powerpc/kernel/cputable.c22
-rw-r--r--arch/powerpc/mm/tlb_nohash_low.S35
-rw-r--r--arch/powerpc/platforms/44x/44x.h4
-rw-r--r--arch/powerpc/platforms/44x/Kconfig1
-rw-r--r--arch/powerpc/platforms/44x/Makefile1
-rw-r--r--arch/powerpc/platforms/44x/canyonlands.c134
-rw-r--r--arch/powerpc/platforms/44x/ppc44x_simple.c1
9 files changed, 218 insertions, 7 deletions
diff --git a/arch/powerpc/boot/dts/canyonlands.dts b/arch/powerpc/boot/dts/canyonlands.dts
index 5b27a4b74b7..2779f08313a 100644
--- a/arch/powerpc/boot/dts/canyonlands.dts
+++ b/arch/powerpc/boot/dts/canyonlands.dts
@@ -172,6 +172,19 @@
interrupts = <0x1e 4>;
};
+ USBOTG0: usbotg@bff80000 {
+ compatible = "amcc,dwc-otg";
+ reg = <0x4 0xbff80000 0x10000>;
+ interrupt-parent = <&USBOTG0>;
+ #interrupt-cells = <1>;
+ #address-cells = <0>;
+ #size-cells = <0>;
+ interrupts = <0x0 0x1 0x2>;
+ interrupt-map = </* USB-OTG */ 0x0 &UIC2 0x1c 0x4
+ /* HIGH-POWER */ 0x1 &UIC1 0x1a 0x8
+ /* DMA */ 0x2 &UIC0 0xc 0x4>;
+ };
+
SATA0: sata@bffd1000 {
compatible = "amcc,sata-460ex";
reg = <4 0xbffd1000 0x800 4 0xbffd0800 0x400>;
@@ -233,6 +246,11 @@
};
};
+ cpld@2,0 {
+ compatible = "amcc,ppc460ex-bcsr";
+ reg = <2 0x0 0x9>;
+ };
+
ndfc@3,0 {
compatible = "ibm,ndfc";
reg = <0x00000003 0x00000000 0x00002000>;
@@ -307,6 +325,12 @@
interrupts = <0x3 0x4>;
};
+ GPIO0: gpio@ef600b00 {
+ compatible = "ibm,ppc4xx-gpio";
+ reg = <0xef600b00 0x00000048>;
+ gpio-controller;
+ };
+
ZMII0: emac-zmii@ef600d00 {
compatible = "ibm,zmii-460ex", "ibm,zmii";
reg = <0xef600d00 0x0000000c>;
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index f0a211d9692..be3cdf9134c 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -154,6 +154,7 @@ extern const char *powerpc_base_platform;
#define CPU_FTR_NAP_DISABLE_L2_PR ASM_CONST(0x0000000000002000)
#define CPU_FTR_DUAL_PLL_750FX ASM_CONST(0x0000000000004000)
#define CPU_FTR_NO_DPM ASM_CONST(0x0000000000008000)
+#define CPU_FTR_476_DD2 ASM_CONST(0x0000000000010000)
#define CPU_FTR_NEED_COHERENT ASM_CONST(0x0000000000020000)
#define CPU_FTR_NO_BTIC ASM_CONST(0x0000000000040000)
#define CPU_FTR_NODSISRALIGN ASM_CONST(0x0000000000100000)
@@ -465,7 +466,7 @@ enum {
CPU_FTRS_44X | CPU_FTRS_440x6 |
#endif
#ifdef CONFIG_PPC_47x
- CPU_FTRS_47X |
+ CPU_FTRS_47X | CPU_FTR_476_DD2 |
#endif
#ifdef CONFIG_E200
CPU_FTRS_E200 |
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index e8e915ce3d8..c9b68d07ac4 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -1811,11 +1811,11 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check = machine_check_440A,
.platform = "ppc440",
},
- { /* 476 core */
- .pvr_mask = 0xffff0000,
- .pvr_value = 0x11a50000,
+ { /* 476 DD2 core */
+ .pvr_mask = 0xffffffff,
+ .pvr_value = 0x11a52080,
.cpu_name = "476",
- .cpu_features = CPU_FTRS_47X,
+ .cpu_features = CPU_FTRS_47X | CPU_FTR_476_DD2,
.cpu_user_features = COMMON_USER_BOOKE |
PPC_FEATURE_HAS_FPU,
.mmu_features = MMU_FTR_TYPE_47x |
@@ -1839,6 +1839,20 @@ static struct cpu_spec __initdata cpu_specs[] = {
.machine_check = machine_check_47x,
.platform = "ppc470",
},
+ { /* 476 others */
+ .pvr_mask = 0xffff0000,
+ .pvr_value = 0x11a50000,
+ .cpu_name = "476",
+ .cpu_features = CPU_FTRS_47X,
+ .cpu_user_features = COMMON_USER_BOOKE |
+ PPC_FEATURE_HAS_FPU,
+ .mmu_features = MMU_FTR_TYPE_47x |
+ MMU_FTR_USE_TLBIVAX_BCAST | MMU_FTR_LOCK_BCAST_INVAL,
+ .icache_bsize = 32,
+ .dcache_bsize = 128,
+ .machine_check = machine_check_47x,
+ .platform = "ppc470",
+ },
{ /* default match */
.pvr_mask = 0x00000000,
.pvr_value = 0x00000000,
diff --git a/arch/powerpc/mm/tlb_nohash_low.S b/arch/powerpc/mm/tlb_nohash_low.S
index af405eefe48..7c63c0ed4f1 100644
--- a/arch/powerpc/mm/tlb_nohash_low.S
+++ b/arch/powerpc/mm/tlb_nohash_low.S
@@ -189,6 +189,13 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_TYPE_47x)
blr
#ifdef CONFIG_PPC_47x
+
+/*
+ * 47x variant of icbt
+ */
+# define ICBT(CT,RA,RB) \
+ .long 0x7c00002c | ((CT) << 21) | ((RA) << 16) | ((RB) << 11)
+
/*
* _tlbivax_bcast is only on 47x. We don't bother doing a runtime
* check though, it will blow up soon enough if we mistakenly try
@@ -206,7 +213,35 @@ _GLOBAL(_tlbivax_bcast)
isync
eieio
tlbsync
+BEGIN_FTR_SECTION
+ b 1f
+END_FTR_SECTION_IFSET(CPU_FTR_476_DD2)
+ sync
+ wrtee r10
+ blr
+/*
+ * DD2 HW could hang if in instruction fetch happens before msync completes.
+ * Touch enough instruction cache lines to ensure cache hits
+ */
+1: mflr r9
+ bl 2f
+2: mflr r6
+ li r7,32
+ ICBT(0,r6,r7) /* touch next cache line */
+ add r6,r6,r7
+ ICBT(0,r6,r7) /* touch next cache line */
+ add r6,r6,r7
+ ICBT(0,r6,r7) /* touch next cache line */
sync
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ nop
+ mtlr r9
wrtee r10
blr
#endif /* CONFIG_PPC_47x */
diff --git a/arch/powerpc/platforms/44x/44x.h b/arch/powerpc/platforms/44x/44x.h
index dbc4d2b4301..63f703ecd23 100644
--- a/arch/powerpc/platforms/44x/44x.h
+++ b/arch/powerpc/platforms/44x/44x.h
@@ -4,4 +4,8 @@
extern u8 as1_readb(volatile u8 __iomem *addr);
extern void as1_writeb(u8 data, volatile u8 __iomem *addr);
+#define GPIO0_OSRH 0xC
+#define GPIO0_TSRH 0x14
+#define GPIO0_ISR1H 0x34
+
#endif /* __POWERPC_PLATFORMS_44X_44X_H */
diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
index 0f979c5c756..f485fc5f6d5 100644
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -115,7 +115,6 @@ config CANYONLANDS
bool "Canyonlands"
depends on 44x
default n
- select PPC44x_SIMPLE
select 460EX
select PCI
select PPC4xx_PCI_EXPRESS
diff --git a/arch/powerpc/platforms/44x/Makefile b/arch/powerpc/platforms/44x/Makefile
index c04d16df848..553db600721 100644
--- a/arch/powerpc/platforms/44x/Makefile
+++ b/arch/powerpc/platforms/44x/Makefile
@@ -9,3 +9,4 @@ obj-$(CONFIG_WARP) += warp.o
obj-$(CONFIG_XILINX_VIRTEX_5_FXT) += virtex.o
obj-$(CONFIG_XILINX_ML510) += virtex_ml510.o
obj-$(CONFIG_ISS4xx) += iss4xx.o
+obj-$(CONFIG_CANYONLANDS)+= canyonlands.o
diff --git a/arch/powerpc/platforms/44x/canyonlands.c b/arch/powerpc/platforms/44x/canyonlands.c
new file mode 100644
index 00000000000..afc5e8ea377
--- /dev/null
+++ b/arch/powerpc/platforms/44x/canyonlands.c
@@ -0,0 +1,134 @@
+/*
+ * This contain platform specific code for APM PPC460EX based Canyonlands
+ * board.
+ *
+ * Copyright (c) 2010, Applied Micro Circuits Corporation
+ * Author: Rupjyoti Sarmah <rsarmah@apm.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/pci-bridge.h>
+#include <asm/ppc4xx.h>
+#include <asm/udbg.h>
+#include <asm/uic.h>
+#include <linux/of_platform.h>
+#include <linux/delay.h>
+#include "44x.h"
+
+#define BCSR_USB_EN 0x11
+
+static __initdata struct of_device_id ppc460ex_of_bus[] = {
+ { .compatible = "ibm,plb4", },
+ { .compatible = "ibm,opb", },
+ { .compatible = "ibm,ebc", },
+ { .compatible = "simple-bus", },
+ {},
+};
+
+static int __init ppc460ex_device_probe(void)
+{
+ of_platform_bus_probe(NULL, ppc460ex_of_bus, NULL);
+
+ return 0;
+}
+machine_device_initcall(canyonlands, ppc460ex_device_probe);
+
+/* Using this code only for the Canyonlands board. */
+
+static int __init ppc460ex_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+ if (of_flat_dt_is_compatible(root, "amcc,canyonlands")) {
+ ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
+ return 1;
+ }
+ return 0;
+}
+
+/* USB PHY fixup code on Canyonlands kit. */
+
+static int __init ppc460ex_canyonlands_fixup(void)
+{
+ u8 __iomem *bcsr ;
+ void __iomem *vaddr;
+ struct device_node *np;
+ int ret = 0;
+
+ np = of_find_compatible_node(NULL, NULL, "amcc,ppc460ex-bcsr");
+ if (!np) {
+ printk(KERN_ERR "failed did not find amcc, ppc460ex bcsr node\n");
+ return -ENODEV;
+ }
+
+ bcsr = of_iomap(np, 0);
+ of_node_put(np);
+
+ if (!bcsr) {
+ printk(KERN_CRIT "Could not remap bcsr\n");
+ ret = -ENODEV;
+ goto err_bcsr;
+ }
+
+ np = of_find_compatible_node(NULL, NULL, "ibm,ppc4xx-gpio");
+ if (!np) {
+ printk(KERN_ERR "failed did not find ibm,ppc4xx-gpio node\n");
+ return -ENODEV;
+ }
+
+ vaddr = of_iomap(np, 0);
+ of_node_put(np);
+
+ if (!vaddr) {
+ printk(KERN_CRIT "Could not get gpio node address\n");
+ ret = -ENODEV;
+ goto err_gpio;
+ }
+ /* Disable USB, through the BCSR7 bits */
+ setbits8(&bcsr[7], BCSR_USB_EN);
+
+ /* Wait for a while after reset */
+ msleep(100);
+
+ /* Enable USB here */
+ clrbits8(&bcsr[7], BCSR_USB_EN);
+
+ /*
+ * Configure multiplexed gpio16 and gpio19 as alternate1 output
+ * source after USB reset. In this configuration gpio16 will be
+ * USB2HStop and gpio19 will be USB2DStop. For more details refer to
+ * table 34-7 of PPC460EX user manual.
+ */
+ setbits32((vaddr + GPIO0_OSRH), 0x42000000);
+ setbits32((vaddr + GPIO0_TSRH), 0x42000000);
+err_gpio:
+ iounmap(vaddr);
+err_bcsr:
+ iounmap(bcsr);
+ return ret;
+}
+machine_device_initcall(canyonlands, ppc460ex_canyonlands_fixup);
+define_machine(canyonlands) {
+ .name = "Canyonlands",
+ .probe = ppc460ex_probe,
+ .progress = udbg_progress,
+ .init_IRQ = uic_init_tree,
+ .get_irq = uic_get_irq,
+ .restart = ppc4xx_reset_system,
+ .calibrate_decr = generic_calibrate_decr,
+};
diff --git a/arch/powerpc/platforms/44x/ppc44x_simple.c b/arch/powerpc/platforms/44x/ppc44x_simple.c
index 7ddcba3b939..c81c19c0b3d 100644
--- a/arch/powerpc/platforms/44x/ppc44x_simple.c
+++ b/arch/powerpc/platforms/44x/ppc44x_simple.c
@@ -53,7 +53,6 @@ static char *board[] __initdata = {
"amcc,arches",
"amcc,bamboo",
"amcc,bluestone",
- "amcc,canyonlands",
"amcc,glacier",
"ibm,ebony",
"amcc,eiger",