[PATCH v4 4/8] MIPS: Loongson: Add Loongson-1A Kconfig options

[Binbin Zhou <zhoubb@lemote.com>]

Added Kconfig options include: Loongson-1A CPU and machine definition,
CPU cache features, 32-bit kernel and early printk support.

Signed-off-by: Binbin Zhou <zhoubb@lemote.com>
Signed-off-by: HuaCai Chen <chenhc@lemote.com>
---
 arch/mips/Kconfig            | 12 ++++++++++++
 arch/mips/loongson32/Kconfig | 20 ++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index b969522..b4f59c5 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1420,6 +1420,15 @@ config CPU_LOONGSON2F
 	  have a similar programming interface with FPGA northbridge used in
 	  Loongson2E.
 
+config CPU_LOONGSON1A
+	bool "Loongson 1A"
+	depends on SYS_HAS_CPU_LOONGSON1A
+	select CPU_LOONGSON1
+	select LEDS_GPIO_REGISTER
+	help
+	  The Loongson 1A is a 32-bit SoC, which implements the MIPS32
+	  release 2 instruction set.
+
 config CPU_LOONGSON1B
 	bool "Loongson 1B"
 	depends on SYS_HAS_CPU_LOONGSON1B
@@ -1884,6 +1893,9 @@ config SYS_HAS_CPU_LOONGSON2F
 	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
 	select CPU_SUPPORTS_UNCACHED_ACCELERATED
 
+config SYS_HAS_CPU_LOONGSON1A
+	bool
+
 config SYS_HAS_CPU_LOONGSON1B
 	bool
 
diff --git a/arch/mips/loongson32/Kconfig b/arch/mips/loongson32/Kconfig
index 3c0c2f2..6e0f6ec 100644
--- a/arch/mips/loongson32/Kconfig
+++ b/arch/mips/loongson32/Kconfig
@@ -1,8 +1,28 @@
 if MACH_LOONGSON32
 
+config ZONE_DMA
+	prompt "Zone DMA"
+	bool
+
 choice
 	prompt "Machine Type"
 
+config LOONGSON1_LS1A
+	bool "Loongson LS1A board"
+	select CEVT_R4K if !MIPS_EXTERNAL_TIMER
+	select CSRC_R4K if !MIPS_EXTERNAL_TIMER
+	select SYS_HAS_CPU_LOONGSON1A
+	select DMA_NONCOHERENT
+	select BOOT_ELF32
+	select IRQ_MIPS_CPU
+	select SYS_SUPPORTS_32BIT_KERNEL
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_SUPPORTS_HIGHMEM
+	select SYS_SUPPORTS_MIPS16
+	select SYS_HAS_EARLY_PRINTK
+	select USE_GENERIC_EARLY_PRINTK_8250
+	select COMMON_CLK
+
 config LOONGSON1_LS1B
 	bool "Loongson LS1B board"
 	select CEVT_R4K if !MIPS_EXTERNAL_TIMER
-- 
2.9.3