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Commit 12e3280b authored by Yang Ling's avatar Yang Ling Committed by Ralf Baechle
Browse files

MIPS: Loongson1C: Add board support 



Adds basic platform devices for Loongson1C, including serial port
and ethernet.

Signed-off-by: default avatarYang Ling <gnaygnil@gmail.com>
Cc: keguang.zhang@gmail.com
Cc: chenhc@lemote.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/13304/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent a1ca8386

arch/mips/Kconfig

+13 −0
Original line number Diff line number Diff line
@@ -1402,6 +1402,16 @@ config CPU_LOONGSON1B 
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32

	  release 2 instruction set.



config CPU_LOONGSON1C

	bool "Loongson 1C"

	depends on SYS_HAS_CPU_LOONGSON1C

	select CPU_LOONGSON1

	select ARCH_WANT_OPTIONAL_GPIOLIB

	select LEDS_GPIO_REGISTER

	help

	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32

	  release 2 instruction set.



config CPU_MIPS32_R1

	bool "MIPS32 Release 1"

	depends on SYS_HAS_CPU_MIPS32_R1
@@ -1851,6 +1861,9 @@ config SYS_HAS_CPU_LOONGSON2F 
config SYS_HAS_CPU_LOONGSON1B

	bool



config SYS_HAS_CPU_LOONGSON1C

	bool



config SYS_HAS_CPU_MIPS32_R1

	bool

arch/mips/include/asm/mach-loongson32/irq.h

+40 −1
Original line number Diff line number Diff line
@@ -36,9 +36,14 @@ 
#define LS1X_IRQ(n, x)			(LS1X_IRQ_BASE + (n << 5) + (x))



#define LS1X_UART0_IRQ			LS1X_IRQ(0, 2)

#if defined(CONFIG_LOONGSON1_LS1B)

#define LS1X_UART1_IRQ			LS1X_IRQ(0, 3)

#define LS1X_UART2_IRQ			LS1X_IRQ(0, 4)

#define LS1X_UART3_IRQ			LS1X_IRQ(0, 5)

#elif defined(CONFIG_LOONGSON1_LS1C)

#define LS1X_UART1_IRQ			LS1X_IRQ(0, 4)

#define LS1X_UART2_IRQ			LS1X_IRQ(0, 5)

#endif

#define LS1X_CAN0_IRQ			LS1X_IRQ(0, 6)

#define LS1X_CAN1_IRQ			LS1X_IRQ(0, 7)

#define LS1X_SPI0_IRQ			LS1X_IRQ(0, 8)
@@ -47,6 +52,9 @@ 
#define LS1X_DMA0_IRQ			LS1X_IRQ(0, 13)

#define LS1X_DMA1_IRQ			LS1X_IRQ(0, 14)

#define LS1X_DMA2_IRQ			LS1X_IRQ(0, 15)

#if defined(CONFIG_LOONGSON1_LS1C)

#define LS1X_NAND_IRQ			LS1X_IRQ(0, 16)

#endif

#define LS1X_PWM0_IRQ			LS1X_IRQ(0, 17)

#define LS1X_PWM1_IRQ			LS1X_IRQ(0, 18)

#define LS1X_PWM2_IRQ			LS1X_IRQ(0, 19)
@@ -54,18 +62,49 @@ 
#define LS1X_RTC_INT0_IRQ		LS1X_IRQ(0, 21)

#define LS1X_RTC_INT1_IRQ		LS1X_IRQ(0, 22)

#define LS1X_RTC_INT2_IRQ		LS1X_IRQ(0, 23)

#if defined(CONFIG_LOONGSON1_LS1B)

#define LS1X_TOY_INT0_IRQ		LS1X_IRQ(0, 24)

#define LS1X_TOY_INT1_IRQ		LS1X_IRQ(0, 25)

#define LS1X_TOY_INT2_IRQ		LS1X_IRQ(0, 26)

#define LS1X_RTC_TICK_IRQ		LS1X_IRQ(0, 27)

#define LS1X_TOY_TICK_IRQ		LS1X_IRQ(0, 28)

#define LS1X_UART4_IRQ			LS1X_IRQ(0, 29)

#define LS1X_UART5_IRQ			LS1X_IRQ(0, 30)

#elif defined(CONFIG_LOONGSON1_LS1C)

#define LS1X_UART3_IRQ			LS1X_IRQ(0, 29)

#define LS1X_ADC_IRQ			LS1X_IRQ(0, 30)

#define LS1X_SDIO_IRQ			LS1X_IRQ(0, 31)

#endif



#define LS1X_EHCI_IRQ			LS1X_IRQ(1, 0)

#define LS1X_OHCI_IRQ			LS1X_IRQ(1, 1)

#if defined(CONFIG_LOONGSON1_LS1B)

#define LS1X_GMAC0_IRQ			LS1X_IRQ(1, 2)

#define LS1X_GMAC1_IRQ			LS1X_IRQ(1, 3)

#elif defined(CONFIG_LOONGSON1_LS1C)

#define LS1X_OTG_IRQ			LS1X_IRQ(1, 2)

#define LS1X_GMAC0_IRQ			LS1X_IRQ(1, 3)

#define LS1X_CAM_IRQ			LS1X_IRQ(1, 4)

#define LS1X_UART4_IRQ			LS1X_IRQ(1, 5)

#define LS1X_UART5_IRQ			LS1X_IRQ(1, 6)

#define LS1X_UART6_IRQ			LS1X_IRQ(1, 7)

#define LS1X_UART7_IRQ			LS1X_IRQ(1, 8)

#define LS1X_UART8_IRQ			LS1X_IRQ(1, 9)

#define LS1X_UART9_IRQ			LS1X_IRQ(1, 13)

#define LS1X_UART10_IRQ			LS1X_IRQ(1, 14)

#define LS1X_UART11_IRQ			LS1X_IRQ(1, 15)

#define LS1X_I2C0_IRQ			LS1X_IRQ(1, 17)

#define LS1X_I2C1_IRQ			LS1X_IRQ(1, 18)

#define LS1X_I2C2_IRQ			LS1X_IRQ(1, 19)

#endif



#define LS1X_IRQS		(LS1X_IRQ(4, 31) + 1 - LS1X_IRQ_BASE)

#if defined(CONFIG_LOONGSON1_LS1B)

#define INTN	4

#elif defined(CONFIG_LOONGSON1_LS1C)

#define INTN	5

#endif



#define LS1X_IRQS		(LS1X_IRQ(INTN, 31) + 1 - LS1X_IRQ_BASE)



#define NR_IRQS			(MIPS_CPU_IRQS + LS1X_IRQS)

arch/mips/include/asm/mach-loongson32/loongson1.h

+5 −0
Original line number Diff line number Diff line
@@ -12,7 +12,11 @@ 
#ifndef __ASM_MACH_LOONGSON32_LOONGSON1_H

#define __ASM_MACH_LOONGSON32_LOONGSON1_H



#if defined(CONFIG_LOONGSON1_LS1B)

#define DEFAULT_MEMSIZE			256	/* If no memsize provided */

#elif defined(CONFIG_LOONGSON1_LS1C)

#define DEFAULT_MEMSIZE			32

#endif



/* Loongson 1 Register Bases */

#define LS1X_MUX_BASE			0x1fd00420
@@ -20,6 +24,7 @@ 
#define LS1X_GPIO0_BASE			0x1fd010c0

#define LS1X_GPIO1_BASE			0x1fd010c4

#define LS1X_DMAC_BASE			0x1fd01160

#define LS1X_CBUS_BASE			0x1fd011c0

#define LS1X_EHCI_BASE			0x1fe00000

#define LS1X_OHCI_BASE			0x1fe08000

#define LS1X_GMAC0_BASE			0x1fe10000

arch/mips/include/asm/mach-loongson32/regs-clk.h

+34 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#define LS1X_CLK_PLL_FREQ		LS1X_CLK_REG(0x0)

#define LS1X_CLK_PLL_DIV		LS1X_CLK_REG(0x4)



#if defined(CONFIG_LOONGSON1_LS1B)

/* Clock PLL Divisor Register Bits */

#define DIV_DC_EN			BIT(31)

#define DIV_DC_RST			BIT(30)
@@ -48,4 +49,37 @@ 
#define BYPASS_DDR_WIDTH		1

#define BYPASS_CPU_WIDTH		1



#elif defined(CONFIG_LOONGSON1_LS1C)

/* PLL/SDRAM Frequency configuration register Bits */

#define PLL_VALID			BIT(31)

#define FRAC_N				GENMASK(23, 16)

#define RST_TIME			GENMASK(3, 2)

#define SDRAM_DIV			GENMASK(1, 0)



/* CPU/CAMERA/DC Frequency configuration register Bits */

#define DIV_DC_EN			BIT(31)

#define DIV_DC				GENMASK(30, 24)

#define DIV_CAM_EN			BIT(23)

#define DIV_CAM				GENMASK(22, 16)

#define DIV_CPU_EN			BIT(15)

#define DIV_CPU				GENMASK(14, 8)

#define DIV_DC_SEL_EN			BIT(5)

#define DIV_DC_SEL			BIT(4)

#define DIV_CAM_SEL_EN			BIT(3)

#define DIV_CAM_SEL			BIT(2)

#define DIV_CPU_SEL_EN			BIT(1)

#define DIV_CPU_SEL			BIT(0)



#define DIV_DC_SHIFT			24

#define DIV_CAM_SHIFT			16

#define DIV_CPU_SHIFT			8

#define DIV_DDR_SHIFT			0



#define DIV_DC_WIDTH			7

#define DIV_CAM_WIDTH			7

#define DIV_CPU_WIDTH			7

#define DIV_DDR_WIDTH			2



#endif



#endif /* __ASM_MACH_LOONGSON32_REGS_CLK_H */

arch/mips/include/asm/mach-loongson32/regs-mux.h

+61 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#define LS1X_MUX_CTRL0			LS1X_MUX_REG(0x0)

#define LS1X_MUX_CTRL1			LS1X_MUX_REG(0x4)



#if defined(CONFIG_LOONGSON1_LS1B)

/* MUX CTRL0 Register Bits */

#define UART0_USE_PWM23			BIT(28)

#define UART0_USE_PWM01			BIT(27)
@@ -64,4 +65,64 @@ 
#define GMAC1_USE_PWM23			BIT(1)

#define GMAC0_USE_PWM01			BIT(0)



#elif defined(CONFIG_LOONGSON1_LS1C)



/* SHUT_CTRL Register Bits */

#define UART_SPLIT			GENMASK(31, 30)

#define OUTPUT_CLK			GENMASK(29, 26)

#define ADC_SHUT			BIT(25)

#define SDIO_SHUT			BIT(24)

#define DMA2_SHUT			BIT(23)

#define DMA1_SHUT			BIT(22)

#define DMA0_SHUT			BIT(21)

#define SPI1_SHUT			BIT(20)

#define SPI0_SHUT			BIT(19)

#define I2C2_SHUT			BIT(18)

#define I2C1_SHUT			BIT(17)

#define I2C0_SHUT			BIT(16)

#define AC97_SHUT			BIT(15)

#define I2S_SHUT			BIT(14)

#define UART3_SHUT			BIT(13)

#define UART2_SHUT			BIT(12)

#define UART1_SHUT			BIT(11)

#define UART0_SHUT			BIT(10)

#define CAN1_SHUT			BIT(9)

#define CAN0_SHUT			BIT(8)

#define ECC_SHUT			BIT(7)

#define GMAC_SHUT			BIT(6)

#define USBHOST_SHUT			BIT(5)

#define USBOTG_SHUT			BIT(4)

#define SDRAM_SHUT			BIT(3)

#define SRAM_SHUT			BIT(2)

#define CAM_SHUT			BIT(1)

#define LCD_SHUT			BIT(0)



#define UART_SPLIT_SHIFT                        30

#define OUTPUT_CLK_SHIFT                        26



/* MISC_CTRL Register Bits */

#define USBHOST_RSTN			BIT(31)

#define PHY_INTF_SELI			GENMASK(30, 28)

#define AC97_EN				BIT(25)

#define SDIO_DMA_EN			GENMASK(24, 23)

#define ADC_DMA_EN			BIT(22)

#define SDIO_USE_SPI1			BIT(17)

#define SDIO_USE_SPI0			BIT(16)

#define SRAM_CTRL			GENMASK(15, 0)



#define PHY_INTF_SELI_SHIFT                     28

#define SDIO_DMA_EN_SHIFT                       23

#define SRAM_CTRL_SHIFT				0



#define LS1X_CBUS_REG(n, x) \

		((void __iomem *)KSEG1ADDR(LS1X_CBUS_BASE + (n * 0x04) + (x)))



#define LS1X_CBUS_FIRST(n)		LS1X_CBUS_REG(n, 0x00)

#define LS1X_CBUS_SECOND(n)		LS1X_CBUS_REG(n, 0x10)

#define LS1X_CBUS_THIRD(n)		LS1X_CBUS_REG(n, 0x20)

#define LS1X_CBUS_FOURTHT(n)		LS1X_CBUS_REG(n, 0x30)

#define LS1X_CBUS_FIFTHT(n)		LS1X_CBUS_REG(n, 0x40)



#endif



#endif /* __ASM_MACH_LOONGSON32_REGS_MUX_H */