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-rw-r--r--arch/frv/include/asm/bug.h5
-rw-r--r--arch/frv/include/asm/init.h12
-rw-r--r--arch/frv/include/asm/unistd.h4
-rw-r--r--arch/frv/kernel/entry.S2
-rw-r--r--arch/frv/kernel/head-mmu-fr451.S3
-rw-r--r--arch/frv/kernel/head-uc-fr401.S3
-rw-r--r--arch/frv/kernel/head-uc-fr451.S3
-rw-r--r--arch/frv/kernel/head-uc-fr555.S3
-rw-r--r--arch/frv/kernel/head.S3
-rw-r--r--arch/frv/kernel/setup.c1
-rw-r--r--arch/frv/kernel/vmlinux.lds.S2
-rw-r--r--arch/frv/mb93090-mb00/pci-vdk.c63
12 files changed, 69 insertions, 35 deletions
diff --git a/arch/frv/include/asm/bug.h b/arch/frv/include/asm/bug.h
index 6b1b44d71028..2e054508a2f6 100644
--- a/arch/frv/include/asm/bug.h
+++ b/arch/frv/include/asm/bug.h
@@ -30,7 +30,7 @@ extern void __debug_bug_printk(const char *file, unsigned line);
do { \
__debug_bug_trap(signr); \
asm volatile("nop"); \
-} while(0)
+} while(1)
#define HAVE_ARCH_BUG
#define BUG() \
@@ -46,7 +46,8 @@ do { \
#define HAVE_ARCH_KGDB_BAD_PAGE
#define kgdb_bad_page(page) do { kgdb_raise(SIGABRT); } while(0)
#endif
-#endif
+
+#endif /* CONFIG_BUG */
#include <asm-generic/bug.h>
diff --git a/arch/frv/include/asm/init.h b/arch/frv/include/asm/init.h
deleted file mode 100644
index 8b15838de216..000000000000
--- a/arch/frv/include/asm/init.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _ASM_INIT_H
-#define _ASM_INIT_H
-
-#define __init __attribute__ ((__section__ (".text.init")))
-#define __initdata __attribute__ ((__section__ (".data.init")))
-/* For assembly routines */
-#define __INIT .section ".text.init",#alloc,#execinstr
-#define __FINIT .previous
-#define __INITDATA .section ".data.init",#alloc,#write
-
-#endif
-
diff --git a/arch/frv/include/asm/unistd.h b/arch/frv/include/asm/unistd.h
index edcfaf5f0414..96d78d5d2c41 100644
--- a/arch/frv/include/asm/unistd.h
+++ b/arch/frv/include/asm/unistd.h
@@ -339,10 +339,12 @@
#define __NR_dup3 330
#define __NR_pipe2 331
#define __NR_inotify_init1 332
+#define __NR_preadv 333
+#define __NR_pwritev 334
#ifdef __KERNEL__
-#define NR_syscalls 333
+#define NR_syscalls 335
#define __ARCH_WANT_IPC_PARSE_VERSION
/* #define __ARCH_WANT_OLD_READDIR */
diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S
index 99060ab507ee..1da523b3298e 100644
--- a/arch/frv/kernel/entry.S
+++ b/arch/frv/kernel/entry.S
@@ -1525,5 +1525,7 @@ sys_call_table:
.long sys_dup3 /* 330 */
.long sys_pipe2
.long sys_inotify_init1
+ .long sys_preadv
+ .long sys_pwritev
syscall_table_size = (. - sys_call_table)
diff --git a/arch/frv/kernel/head-mmu-fr451.S b/arch/frv/kernel/head-mmu-fr451.S
index c8f210d84ff5..98f87d586e59 100644
--- a/arch/frv/kernel/head-mmu-fr451.S
+++ b/arch/frv/kernel/head-mmu-fr451.S
@@ -9,6 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
+#include <linux/init.h>
#include <linux/threads.h>
#include <linux/linkage.h>
#include <asm/ptrace.h>
@@ -31,7 +32,7 @@
#define __400_LCR 0xfe000100
#define __400_LSBR 0xfe000c00
- .section .text.init,"ax"
+ __INIT
.balign 4
###############################################################################
diff --git a/arch/frv/kernel/head-uc-fr401.S b/arch/frv/kernel/head-uc-fr401.S
index ee282be20fff..438643cfa38e 100644
--- a/arch/frv/kernel/head-uc-fr401.S
+++ b/arch/frv/kernel/head-uc-fr401.S
@@ -9,6 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
+#include <linux/init.h>
#include <linux/threads.h>
#include <linux/linkage.h>
#include <asm/ptrace.h>
@@ -30,7 +31,7 @@
#define __400_LCR 0xfe000100
#define __400_LSBR 0xfe000c00
- .section .text.init,"ax"
+ __INIT
.balign 4
###############################################################################
diff --git a/arch/frv/kernel/head-uc-fr451.S b/arch/frv/kernel/head-uc-fr451.S
index b10d9c8295d2..b2a76c4a1786 100644
--- a/arch/frv/kernel/head-uc-fr451.S
+++ b/arch/frv/kernel/head-uc-fr451.S
@@ -9,6 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
+#include <linux/init.h>
#include <linux/threads.h>
#include <linux/linkage.h>
#include <asm/ptrace.h>
@@ -30,7 +31,7 @@
#define __400_LCR 0xfe000100
#define __400_LSBR 0xfe000c00
- .section .text.init,"ax"
+ __INIT
.balign 4
###############################################################################
diff --git a/arch/frv/kernel/head-uc-fr555.S b/arch/frv/kernel/head-uc-fr555.S
index 39937c19b460..5497aaf34f77 100644
--- a/arch/frv/kernel/head-uc-fr555.S
+++ b/arch/frv/kernel/head-uc-fr555.S
@@ -9,6 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
+#include <linux/init.h>
#include <linux/threads.h>
#include <linux/linkage.h>
#include <asm/ptrace.h>
@@ -29,7 +30,7 @@
#define __551_LCR 0xfeff1100
#define __551_LSBR 0xfeff1c00
- .section .text.init,"ax"
+ __INIT
.balign 4
###############################################################################
diff --git a/arch/frv/kernel/head.S b/arch/frv/kernel/head.S
index fecf751c5cae..b825ef3f2d54 100644
--- a/arch/frv/kernel/head.S
+++ b/arch/frv/kernel/head.S
@@ -9,6 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
+#include <linux/init.h>
#include <linux/threads.h>
#include <linux/linkage.h>
#include <asm/thread_info.h>
@@ -27,7 +28,7 @@
# command line string
#
###############################################################################
- .section .text.head,"ax"
+ __HEAD
.balign 4
.globl _boot, __head_reference
diff --git a/arch/frv/kernel/setup.c b/arch/frv/kernel/setup.c
index 0669e1382383..55e4fab7c0bc 100644
--- a/arch/frv/kernel/setup.c
+++ b/arch/frv/kernel/setup.c
@@ -46,7 +46,6 @@
#include <asm/io.h>
#ifdef CONFIG_BLK_DEV_INITRD
-#include <linux/blk.h>
#include <asm/pgtable.h>
#endif
diff --git a/arch/frv/kernel/vmlinux.lds.S b/arch/frv/kernel/vmlinux.lds.S
index b95c4eace62f..22d9787406ed 100644
--- a/arch/frv/kernel/vmlinux.lds.S
+++ b/arch/frv/kernel/vmlinux.lds.S
@@ -26,7 +26,7 @@ SECTIONS
_sinittext = .;
.init.text : {
- *(.text.head)
+ HEAD_TEXT
#ifndef CONFIG_DEBUG_INFO
INIT_TEXT
EXIT_TEXT
diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c
index 0f41c3a72da5..c0dcec65c6b7 100644
--- a/arch/frv/mb93090-mb00/pci-vdk.c
+++ b/arch/frv/mb93090-mb00/pci-vdk.c
@@ -31,6 +31,29 @@ struct pci_bus *__nongpreldata pci_root_bus;
struct pci_ops *__nongpreldata pci_root_ops;
/*
+ * The accessible PCI window does not cover the entire CPU address space, but
+ * there are devices we want to access outside of that window, so we need to
+ * insert specific PCI bus resources instead of using the platform-level bus
+ * resources directly for the PCI root bus.
+ *
+ * These are configured and inserted by pcibios_init() and are attached to the
+ * root bus by pcibios_fixup_bus().
+ */
+static struct resource pci_ioport_resource = {
+ .name = "PCI IO",
+ .start = 0,
+ .end = IO_SPACE_LIMIT,
+ .flags = IORESOURCE_IO,
+};
+
+static struct resource pci_iomem_resource = {
+ .name = "PCI mem",
+ .start = 0,
+ .end = -1,
+ .flags = IORESOURCE_MEM,
+};
+
+/*
* Functions for accessing PCI configuration space
*/
@@ -304,6 +327,12 @@ void __init pcibios_fixup_bus(struct pci_bus *bus)
#if 0
printk("### PCIBIOS_FIXUP_BUS(%d)\n",bus->number);
#endif
+
+ if (bus->number == 0) {
+ bus->resource[0] = &pci_ioport_resource;
+ bus->resource[1] = &pci_iomem_resource;
+ }
+
pci_read_bridge_bases(bus);
if (bus->number == 0) {
@@ -350,28 +379,36 @@ int __init pcibios_init(void)
/* enable PCI arbitration */
__reg_MB86943_pci_arbiter = MB86943_PCIARB_EN;
- ioport_resource.start = (__reg_MB86943_sl_pci_io_base << 9) & 0xfffffc00;
- ioport_resource.end = (__reg_MB86943_sl_pci_io_range << 9) | 0x3ff;
- ioport_resource.end += ioport_resource.start;
+ pci_ioport_resource.start = (__reg_MB86943_sl_pci_io_base << 9) & 0xfffffc00;
+ pci_ioport_resource.end = (__reg_MB86943_sl_pci_io_range << 9) | 0x3ff;
+ pci_ioport_resource.end += pci_ioport_resource.start;
printk("PCI IO window: %08llx-%08llx\n",
- (unsigned long long) ioport_resource.start,
- (unsigned long long) ioport_resource.end);
+ (unsigned long long) pci_ioport_resource.start,
+ (unsigned long long) pci_ioport_resource.end);
- iomem_resource.start = (__reg_MB86943_sl_pci_mem_base << 9) & 0xfffffc00;
+ pci_iomem_resource.start = (__reg_MB86943_sl_pci_mem_base << 9) & 0xfffffc00;
+ pci_iomem_resource.end = (__reg_MB86943_sl_pci_mem_range << 9) | 0x3ff;
+ pci_iomem_resource.end += pci_iomem_resource.start;
- /* Reserve somewhere to write to flush posted writes. */
- iomem_resource.start += 0x400;
-
- iomem_resource.end = (__reg_MB86943_sl_pci_mem_range << 9) | 0x3ff;
- iomem_resource.end += iomem_resource.start;
+ /* Reserve somewhere to write to flush posted writes. This is used by
+ * __flush_PCI_writes() from asm/io.h to force the write FIFO in the
+ * CPU-PCI bridge to flush as this doesn't happen automatically when a
+ * read is performed on the MB93090 development kit motherboard.
+ */
+ pci_iomem_resource.start += 0x400;
printk("PCI MEM window: %08llx-%08llx\n",
- (unsigned long long) iomem_resource.start,
- (unsigned long long) iomem_resource.end);
+ (unsigned long long) pci_iomem_resource.start,
+ (unsigned long long) pci_iomem_resource.end);
printk("PCI DMA memory: %08lx-%08lx\n",
dma_coherent_mem_start, dma_coherent_mem_end);
+ if (insert_resource(&iomem_resource, &pci_iomem_resource) < 0)
+ panic("Unable to insert PCI IOMEM resource\n");
+ if (insert_resource(&ioport_resource, &pci_ioport_resource) < 0)
+ panic("Unable to insert PCI IOPORT resource\n");
+
if (!pci_probe)
return -ENXIO;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.