[PATCH RESEND 02/12] sh: Config update for OF mode
From: Yoshinori Sato
Date: Sun May 01 2016 - 01:08:54 EST
DeviceTreee support is use liner IRQ.
And use generic function (clock / io / IRQ).
Signed-off-by: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
---
arch/sh/Kconfig | 26 +++++++++++++++++++++++---
arch/sh/boards/Kconfig | 4 ++++
arch/sh/drivers/Makefile | 2 ++
arch/sh/include/asm/io.h | 6 ++++++
arch/sh/kernel/cpu/Makefile | 8 ++++++--
arch/sh/kernel/cpu/clock.c | 9 ++++++---
drivers/sh/Makefile | 2 ++
7 files changed, 49 insertions(+), 8 deletions(-)
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 7ed20fc..d4177ba 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -28,7 +28,7 @@ config SUPERH
select ARCH_WANT_IPC_PARSE_VERSION
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_REGS_AND_STACK_ACCESS_API
- select MAY_HAVE_SPARSE_IRQ
+ select MAY_HAVE_SPARSE_IRQ if !SH_DEVICE_TREE
select IRQ_FORCED_THREADING
select RTC_LIB
select GENERIC_ATOMIC64
@@ -66,7 +66,7 @@ config SUPERH32
select HAVE_MIXED_BREAKPOINTS_REGS
select PERF_EVENTS
select ARCH_HIBERNATION_POSSIBLE if MMU
- select SPARSE_IRQ
+ select SPARSE_IRQ if !SH_DEVICE_TREE
select HAVE_CC_STACKPROTECTOR
config SUPERH64
@@ -745,6 +745,26 @@ endmenu
menu "Boot options"
+config USE_BUILTIN_DTB
+ bool "Use builtin DTB"
+ default n
+ depends on SH_DEVICE_TREE
+ help
+ Link a device tree blob for particular hardware into the kernel,
+ suppressing use of the DTB pointer provided by the bootloader.
+ This option should only be used with legacy bootloaders that are
+ not capable of providing a DTB to the kernel, or for experimental
+ hardware without stable device tree bindings.
+
+config BUILTIN_DTB_SOURCE
+ string "Source file for builtin DTB"
+ default ""
+ depends on USE_BUILTIN_DTB
+ help
+ Base name (without suffix, relative to arch/sh/boot/dts) for the
+ a DTS file that will be used to produce the DTB linked into the
+ kernel.
+
config ZERO_PAGE_OFFSET
hex
default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
@@ -839,7 +859,7 @@ config PCI
depends on SYS_SUPPORTS_PCI
select PCI_DOMAINS
select GENERIC_PCI_IOMAP
- select NO_GENERIC_PCI_IOPORT_MAP
+ select NO_GENERIC_PCI_IOPORT_MAP if !SH_DEVICE_TREE
help
Find out whether you have a PCI motherboard. PCI is the name of a
bus system, i.e. the way the CPU talks to the other stuff inside
diff --git a/arch/sh/boards/Kconfig b/arch/sh/boards/Kconfig
index 5e52d53..98f884e 100644
--- a/arch/sh/boards/Kconfig
+++ b/arch/sh/boards/Kconfig
@@ -12,6 +12,10 @@ config SH_DEVICE_TREE
select OF_EARLY_FLATTREE
select CLKSRC_OF
select GENERIC_CALIBRATE_DELAY
+ select COMMON_CLK
+ select GENERIC_IOMAP
+ select GENERIC_IRQ_CHIP
+ select SYS_SUPPORTS_PCI
help
Select Board Described by Device Tree to build a kernel that
does not hard-code any board-specific knowledge but instead uses
diff --git a/arch/sh/drivers/Makefile b/arch/sh/drivers/Makefile
index e13f06b..382e86f 100644
--- a/arch/sh/drivers/Makefile
+++ b/arch/sh/drivers/Makefile
@@ -4,7 +4,9 @@
obj-y += dma/
+ifndef CONFIG_SH_DEVICE_TREE
obj-$(CONFIG_PCI) += pci/
+endif
obj-$(CONFIG_SUPERHYWAY) += superhyway/
obj-$(CONFIG_PUSH_SWITCH) += push-switch.o
obj-$(CONFIG_HEARTBEAT) += heartbeat.o
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 3280a6b..df62a9f 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -387,6 +387,12 @@ static inline int iounmap_fixed(void __iomem *addr) { return -EINVAL; }
int valid_phys_addr_range(phys_addr_t addr, size_t size);
int valid_mmap_phys_addr_range(unsigned long pfn, size_t size);
+#define PCI_IOBASE 0xfe240000UL
+
+#define HAVE_ARCH_PIO_SIZE
+#define PIO_OFFSET PCI_IOBASE
+#define PIO_MASK 0x3ffffUL
+#define PIO_RESERVED 0x40000UL
#endif /* __KERNEL__ */
#endif /* __ASM_SH_IO_H */
diff --git a/arch/sh/kernel/cpu/Makefile b/arch/sh/kernel/cpu/Makefile
index accc7ca..22ad0ee 100644
--- a/arch/sh/kernel/cpu/Makefile
+++ b/arch/sh/kernel/cpu/Makefile
@@ -16,6 +16,10 @@ obj-$(CONFIG_ARCH_SHMOBILE) += shmobile/
# Common interfaces.
obj-$(CONFIG_SH_ADC) += adc.o
+ifndef CONFIG_COMMON_CLK
obj-$(CONFIG_SH_CLK_CPG_LEGACY) += clock-cpg.o
-
-obj-y += irq/ init.o clock.o fpu.o pfc.o proc.o
+endif
+ifndef CONFIG_GENERIC_IRQ_CHIP
+obj-y += irq/
+endif
+obj-y += init.o clock.o fpu.o pfc.o proc.o
diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c
index 4187cf4..856a05c 100644
--- a/arch/sh/kernel/cpu/clock.c
+++ b/arch/sh/kernel/cpu/clock.c
@@ -17,19 +17,21 @@
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/clk.h>
+#include <linux/of.h>
#include <asm/clock.h>
#include <asm/machvec.h>
int __init clk_init(void)
{
- int ret;
+ int ret = 0;
+#ifndef CONFIG_COMMON_CLK
ret = arch_clk_init();
if (unlikely(ret)) {
pr_err("%s: CPU clock registration failed.\n", __func__);
return ret;
}
-
+#endif
if (sh_mv.mv_clk_init) {
ret = sh_mv.mv_clk_init();
if (unlikely(ret)) {
@@ -39,12 +41,13 @@ int __init clk_init(void)
}
}
+#ifndef CONFIG_COMMON_CLK
/* Kick the child clocks.. */
recalculate_root_clocks();
/* Enable the necessary init clocks */
clk_enable_init_clocks();
-
+#endif
return ret;
}
diff --git a/drivers/sh/Makefile b/drivers/sh/Makefile
index 114203f..e7888ea 100644
--- a/drivers/sh/Makefile
+++ b/drivers/sh/Makefile
@@ -1,7 +1,9 @@
#
# Makefile for the SuperH specific drivers.
#
+ifneq ($(CONFIG_RENESAS_SH_INTC),y)
obj-$(CONFIG_SH_INTC) += intc/
+endif
ifneq ($(CONFIG_COMMON_CLK),y)
obj-$(CONFIG_HAVE_CLK) += clk/
endif
--
2.7.0