MIPS: Loongson1C: Add board support
Adds basic platform devices for Loongson1C, including serial port and ethernet. Signed-off-by: Yang 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: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Yang Ling
Ralf Baechle
Родитель
a1ca83869d
Коммит
12e3280b33
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@ -1402,6 +1402,16 @@ config CPU_LOONGSON1B
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The Loongson 1B is a 32-bit SoC, which implements the MIPS32
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release 2 instruction set.
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config CPU_LOONGSON1C
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bool "Loongson 1C"
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depends on SYS_HAS_CPU_LOONGSON1C
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select CPU_LOONGSON1
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select ARCH_WANT_OPTIONAL_GPIOLIB
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select LEDS_GPIO_REGISTER
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help
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The Loongson 1C is a 32-bit SoC, which implements the MIPS32
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release 2 instruction set.
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config CPU_MIPS32_R1
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bool "MIPS32 Release 1"
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depends on SYS_HAS_CPU_MIPS32_R1
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@ -1851,6 +1861,9 @@ config SYS_HAS_CPU_LOONGSON2F
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config SYS_HAS_CPU_LOONGSON1B
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bool
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config SYS_HAS_CPU_LOONGSON1C
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bool
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config SYS_HAS_CPU_MIPS32_R1
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bool
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@ -36,9 +36,14 @@
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#define LS1X_IRQ(n, x) (LS1X_IRQ_BASE + (n << 5) + (x))
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#define LS1X_UART0_IRQ LS1X_IRQ(0, 2)
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#if defined(CONFIG_LOONGSON1_LS1B)
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#define LS1X_UART1_IRQ LS1X_IRQ(0, 3)
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#define LS1X_UART2_IRQ LS1X_IRQ(0, 4)
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#define LS1X_UART3_IRQ LS1X_IRQ(0, 5)
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#elif defined(CONFIG_LOONGSON1_LS1C)
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#define LS1X_UART1_IRQ LS1X_IRQ(0, 4)
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#define LS1X_UART2_IRQ LS1X_IRQ(0, 5)
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#endif
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#define LS1X_CAN0_IRQ LS1X_IRQ(0, 6)
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#define LS1X_CAN1_IRQ LS1X_IRQ(0, 7)
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#define LS1X_SPI0_IRQ LS1X_IRQ(0, 8)
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@ -47,6 +52,9 @@
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#define LS1X_DMA0_IRQ LS1X_IRQ(0, 13)
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#define LS1X_DMA1_IRQ LS1X_IRQ(0, 14)
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#define LS1X_DMA2_IRQ LS1X_IRQ(0, 15)
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#if defined(CONFIG_LOONGSON1_LS1C)
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#define LS1X_NAND_IRQ LS1X_IRQ(0, 16)
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#endif
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#define LS1X_PWM0_IRQ LS1X_IRQ(0, 17)
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#define LS1X_PWM1_IRQ LS1X_IRQ(0, 18)
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#define LS1X_PWM2_IRQ LS1X_IRQ(0, 19)
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@ -54,18 +62,49 @@
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#define LS1X_RTC_INT0_IRQ LS1X_IRQ(0, 21)
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#define LS1X_RTC_INT1_IRQ LS1X_IRQ(0, 22)
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#define LS1X_RTC_INT2_IRQ LS1X_IRQ(0, 23)
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#if defined(CONFIG_LOONGSON1_LS1B)
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#define LS1X_TOY_INT0_IRQ LS1X_IRQ(0, 24)
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#define LS1X_TOY_INT1_IRQ LS1X_IRQ(0, 25)
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#define LS1X_TOY_INT2_IRQ LS1X_IRQ(0, 26)
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#define LS1X_RTC_TICK_IRQ LS1X_IRQ(0, 27)
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#define LS1X_TOY_TICK_IRQ LS1X_IRQ(0, 28)
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#define LS1X_UART4_IRQ LS1X_IRQ(0, 29)
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#define LS1X_UART5_IRQ LS1X_IRQ(0, 30)
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#elif defined(CONFIG_LOONGSON1_LS1C)
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#define LS1X_UART3_IRQ LS1X_IRQ(0, 29)
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#define LS1X_ADC_IRQ LS1X_IRQ(0, 30)
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#define LS1X_SDIO_IRQ LS1X_IRQ(0, 31)
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#endif
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#define LS1X_EHCI_IRQ LS1X_IRQ(1, 0)
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#define LS1X_OHCI_IRQ LS1X_IRQ(1, 1)
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#if defined(CONFIG_LOONGSON1_LS1B)
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#define LS1X_GMAC0_IRQ LS1X_IRQ(1, 2)
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#define LS1X_GMAC1_IRQ LS1X_IRQ(1, 3)
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#elif defined(CONFIG_LOONGSON1_LS1C)
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#define LS1X_OTG_IRQ LS1X_IRQ(1, 2)
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#define LS1X_GMAC0_IRQ LS1X_IRQ(1, 3)
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#define LS1X_CAM_IRQ LS1X_IRQ(1, 4)
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#define LS1X_UART4_IRQ LS1X_IRQ(1, 5)
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#define LS1X_UART5_IRQ LS1X_IRQ(1, 6)
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#define LS1X_UART6_IRQ LS1X_IRQ(1, 7)
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#define LS1X_UART7_IRQ LS1X_IRQ(1, 8)
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#define LS1X_UART8_IRQ LS1X_IRQ(1, 9)
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#define LS1X_UART9_IRQ LS1X_IRQ(1, 13)
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#define LS1X_UART10_IRQ LS1X_IRQ(1, 14)
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#define LS1X_UART11_IRQ LS1X_IRQ(1, 15)
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#define LS1X_I2C0_IRQ LS1X_IRQ(1, 17)
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#define LS1X_I2C1_IRQ LS1X_IRQ(1, 18)
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#define LS1X_I2C2_IRQ LS1X_IRQ(1, 19)
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#endif
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#define LS1X_IRQS (LS1X_IRQ(4, 31) + 1 - LS1X_IRQ_BASE)
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#if defined(CONFIG_LOONGSON1_LS1B)
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#define INTN 4
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#elif defined(CONFIG_LOONGSON1_LS1C)
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#define INTN 5
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#endif
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#define LS1X_IRQS (LS1X_IRQ(INTN, 31) + 1 - LS1X_IRQ_BASE)
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#define NR_IRQS (MIPS_CPU_IRQS + LS1X_IRQS)
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@ -12,7 +12,11 @@
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#ifndef __ASM_MACH_LOONGSON32_LOONGSON1_H
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#define __ASM_MACH_LOONGSON32_LOONGSON1_H
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#if defined(CONFIG_LOONGSON1_LS1B)
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#define DEFAULT_MEMSIZE 256 /* If no memsize provided */
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#elif defined(CONFIG_LOONGSON1_LS1C)
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#define DEFAULT_MEMSIZE 32
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#endif
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/* Loongson 1 Register Bases */
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#define LS1X_MUX_BASE 0x1fd00420
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@ -20,6 +24,7 @@
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#define LS1X_GPIO0_BASE 0x1fd010c0
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#define LS1X_GPIO1_BASE 0x1fd010c4
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#define LS1X_DMAC_BASE 0x1fd01160
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#define LS1X_CBUS_BASE 0x1fd011c0
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#define LS1X_EHCI_BASE 0x1fe00000
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#define LS1X_OHCI_BASE 0x1fe08000
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#define LS1X_GMAC0_BASE 0x1fe10000
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@ -18,6 +18,7 @@
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#define LS1X_CLK_PLL_FREQ LS1X_CLK_REG(0x0)
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#define LS1X_CLK_PLL_DIV LS1X_CLK_REG(0x4)
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#if defined(CONFIG_LOONGSON1_LS1B)
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/* Clock PLL Divisor Register Bits */
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#define DIV_DC_EN BIT(31)
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#define DIV_DC_RST BIT(30)
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@ -48,4 +49,37 @@
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#define BYPASS_DDR_WIDTH 1
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#define BYPASS_CPU_WIDTH 1
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#elif defined(CONFIG_LOONGSON1_LS1C)
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/* PLL/SDRAM Frequency configuration register Bits */
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#define PLL_VALID BIT(31)
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#define FRAC_N GENMASK(23, 16)
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#define RST_TIME GENMASK(3, 2)
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#define SDRAM_DIV GENMASK(1, 0)
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/* CPU/CAMERA/DC Frequency configuration register Bits */
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#define DIV_DC_EN BIT(31)
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#define DIV_DC GENMASK(30, 24)
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#define DIV_CAM_EN BIT(23)
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#define DIV_CAM GENMASK(22, 16)
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#define DIV_CPU_EN BIT(15)
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#define DIV_CPU GENMASK(14, 8)
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#define DIV_DC_SEL_EN BIT(5)
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#define DIV_DC_SEL BIT(4)
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#define DIV_CAM_SEL_EN BIT(3)
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#define DIV_CAM_SEL BIT(2)
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#define DIV_CPU_SEL_EN BIT(1)
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#define DIV_CPU_SEL BIT(0)
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#define DIV_DC_SHIFT 24
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#define DIV_CAM_SHIFT 16
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#define DIV_CPU_SHIFT 8
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#define DIV_DDR_SHIFT 0
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#define DIV_DC_WIDTH 7
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#define DIV_CAM_WIDTH 7
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#define DIV_CPU_WIDTH 7
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#define DIV_DDR_WIDTH 2
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#endif
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#endif /* __ASM_MACH_LOONGSON32_REGS_CLK_H */
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@ -18,6 +18,7 @@
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#define LS1X_MUX_CTRL0 LS1X_MUX_REG(0x0)
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#define LS1X_MUX_CTRL1 LS1X_MUX_REG(0x4)
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#if defined(CONFIG_LOONGSON1_LS1B)
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/* MUX CTRL0 Register Bits */
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#define UART0_USE_PWM23 BIT(28)
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#define UART0_USE_PWM01 BIT(27)
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@ -64,4 +65,64 @@
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#define GMAC1_USE_PWM23 BIT(1)
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#define GMAC0_USE_PWM01 BIT(0)
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#elif defined(CONFIG_LOONGSON1_LS1C)
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/* SHUT_CTRL Register Bits */
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#define UART_SPLIT GENMASK(31, 30)
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#define OUTPUT_CLK GENMASK(29, 26)
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#define ADC_SHUT BIT(25)
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#define SDIO_SHUT BIT(24)
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#define DMA2_SHUT BIT(23)
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#define DMA1_SHUT BIT(22)
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#define DMA0_SHUT BIT(21)
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#define SPI1_SHUT BIT(20)
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#define SPI0_SHUT BIT(19)
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#define I2C2_SHUT BIT(18)
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#define I2C1_SHUT BIT(17)
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#define I2C0_SHUT BIT(16)
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#define AC97_SHUT BIT(15)
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#define I2S_SHUT BIT(14)
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#define UART3_SHUT BIT(13)
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#define UART2_SHUT BIT(12)
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#define UART1_SHUT BIT(11)
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#define UART0_SHUT BIT(10)
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#define CAN1_SHUT BIT(9)
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#define CAN0_SHUT BIT(8)
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#define ECC_SHUT BIT(7)
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#define GMAC_SHUT BIT(6)
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#define USBHOST_SHUT BIT(5)
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#define USBOTG_SHUT BIT(4)
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#define SDRAM_SHUT BIT(3)
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#define SRAM_SHUT BIT(2)
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#define CAM_SHUT BIT(1)
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#define LCD_SHUT BIT(0)
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#define UART_SPLIT_SHIFT 30
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#define OUTPUT_CLK_SHIFT 26
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/* MISC_CTRL Register Bits */
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#define USBHOST_RSTN BIT(31)
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#define PHY_INTF_SELI GENMASK(30, 28)
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#define AC97_EN BIT(25)
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#define SDIO_DMA_EN GENMASK(24, 23)
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#define ADC_DMA_EN BIT(22)
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#define SDIO_USE_SPI1 BIT(17)
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#define SDIO_USE_SPI0 BIT(16)
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#define SRAM_CTRL GENMASK(15, 0)
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#define PHY_INTF_SELI_SHIFT 28
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#define SDIO_DMA_EN_SHIFT 23
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#define SRAM_CTRL_SHIFT 0
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#define LS1X_CBUS_REG(n, x) \
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((void __iomem *)KSEG1ADDR(LS1X_CBUS_BASE + (n * 0x04) + (x)))
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#define LS1X_CBUS_FIRST(n) LS1X_CBUS_REG(n, 0x00)
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#define LS1X_CBUS_SECOND(n) LS1X_CBUS_REG(n, 0x10)
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#define LS1X_CBUS_THIRD(n) LS1X_CBUS_REG(n, 0x20)
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#define LS1X_CBUS_FOURTHT(n) LS1X_CBUS_REG(n, 0x30)
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#define LS1X_CBUS_FIFTHT(n) LS1X_CBUS_REG(n, 0x40)
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#endif
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#endif /* __ASM_MACH_LOONGSON32_REGS_MUX_H */
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@ -19,6 +19,21 @@ config LOONGSON1_LS1B
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select USE_GENERIC_EARLY_PRINTK_8250
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select COMMON_CLK
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config LOONGSON1_LS1C
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bool "Loongson LS1C board"
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select CEVT_R4K if !MIPS_EXTERNAL_TIMER
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select CSRC_R4K if !MIPS_EXTERNAL_TIMER
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select SYS_HAS_CPU_LOONGSON1C
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select DMA_NONCOHERENT
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select BOOT_ELF32
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select IRQ_MIPS_CPU
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select SYS_SUPPORTS_32BIT_KERNEL
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select SYS_SUPPORTS_LITTLE_ENDIAN
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select SYS_SUPPORTS_HIGHMEM
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select SYS_SUPPORTS_MIPS16
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select SYS_HAS_EARLY_PRINTK
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select USE_GENERIC_EARLY_PRINTK_8250
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select COMMON_CLK
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endchoice
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menuconfig CEVT_CSRC_LS1X
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@ -9,3 +9,9 @@ obj-$(CONFIG_MACH_LOONGSON32) += common/
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#
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obj-$(CONFIG_LOONGSON1_LS1B) += ls1b/
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#
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# Loongson LS1C board
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#
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obj-$(CONFIG_LOONGSON1_LS1C) += ls1c/
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@ -5,3 +5,4 @@ cflags-$(CONFIG_CPU_LOONGSON1) += \
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platform-$(CONFIG_MACH_LOONGSON32) += loongson32/
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cflags-$(CONFIG_MACH_LOONGSON32) += -I$(srctree)/arch/mips/include/asm/mach-loongson32
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load-$(CONFIG_LOONGSON1_LS1B) += 0xffffffff80100000
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load-$(CONFIG_LOONGSON1_LS1C) += 0xffffffff80100000
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@ -62,12 +62,58 @@ static void ls1x_irq_unmask(struct irq_data *d)
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| (1 << bit), LS1X_INTC_INTIEN(n));
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}
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static int ls1x_irq_settype(struct irq_data *d, unsigned int type)
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{
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unsigned int bit = (d->irq - LS1X_IRQ_BASE) & 0x1f;
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unsigned int n = (d->irq - LS1X_IRQ_BASE) >> 5;
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switch (type) {
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case IRQ_TYPE_LEVEL_HIGH:
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__raw_writel(__raw_readl(LS1X_INTC_INTPOL(n))
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| (1 << bit), LS1X_INTC_INTPOL(n));
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__raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n))
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& ~(1 << bit), LS1X_INTC_INTEDGE(n));
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break;
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case IRQ_TYPE_LEVEL_LOW:
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__raw_writel(__raw_readl(LS1X_INTC_INTPOL(n))
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& ~(1 << bit), LS1X_INTC_INTPOL(n));
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__raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n))
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& ~(1 << bit), LS1X_INTC_INTEDGE(n));
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break;
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case IRQ_TYPE_EDGE_RISING:
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__raw_writel(__raw_readl(LS1X_INTC_INTPOL(n))
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| (1 << bit), LS1X_INTC_INTPOL(n));
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__raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n))
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| (1 << bit), LS1X_INTC_INTEDGE(n));
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break;
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case IRQ_TYPE_EDGE_FALLING:
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__raw_writel(__raw_readl(LS1X_INTC_INTPOL(n))
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& ~(1 << bit), LS1X_INTC_INTPOL(n));
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__raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n))
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| (1 << bit), LS1X_INTC_INTEDGE(n));
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break;
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case IRQ_TYPE_EDGE_BOTH:
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__raw_writel(__raw_readl(LS1X_INTC_INTPOL(n))
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& ~(1 << bit), LS1X_INTC_INTPOL(n));
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__raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n))
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| (1 << bit), LS1X_INTC_INTEDGE(n));
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break;
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case IRQ_TYPE_NONE:
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static struct irq_chip ls1x_irq_chip = {
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.name = "LS1X-INTC",
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.irq_ack = ls1x_irq_ack,
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.irq_mask = ls1x_irq_mask,
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.irq_mask_ack = ls1x_irq_mask_ack,
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.irq_unmask = ls1x_irq_unmask,
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.irq_set_type = ls1x_irq_settype,
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};
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static void ls1x_irq_dispatch(int n)
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@ -107,7 +153,7 @@ asmlinkage void plat_irq_dispatch(void)
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}
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struct irqaction cascade_irqaction = {
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static struct irqaction cascade_irqaction = {
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.handler = no_action,
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.name = "cascade",
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.flags = IRQF_NO_THREAD,
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@ -120,7 +166,7 @@ static void __init ls1x_irq_init(int base)
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/* Disable interrupts and clear pending,
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* setup all IRQs as high level triggered
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*/
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for (n = 0; n < 4; n++) {
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for (n = 0; n < INTN; n++) {
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__raw_writel(0x0, LS1X_INTC_INTIEN(n));
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__raw_writel(0xffffffff, LS1X_INTC_INTCLR(n));
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__raw_writel(0xffffffff, LS1X_INTC_INTPOL(n));
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@ -129,7 +175,7 @@ static void __init ls1x_irq_init(int base)
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}
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for (n = base; n < LS1X_IRQS; n++) {
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for (n = base; n < NR_IRQS; n++) {
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irq_set_chip_and_handler(n, &ls1x_irq_chip,
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handle_level_irq);
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}
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@ -138,6 +184,9 @@ static void __init ls1x_irq_init(int base)
|
|||
setup_irq(INT1_IRQ, &cascade_irqaction);
|
||||
setup_irq(INT2_IRQ, &cascade_irqaction);
|
||||
setup_irq(INT3_IRQ, &cascade_irqaction);
|
||||
#if defined(CONFIG_LOONGSON1_LS1C)
|
||||
setup_irq(INT4_IRQ, &cascade_irqaction);
|
||||
#endif
|
||||
}
|
||||
|
||||
void __init arch_init_irq(void)
|
||||
|
|
|
|||
|
|
@ -17,6 +17,7 @@
|
|||
#include <linux/stmmac.h>
|
||||
#include <linux/usb/ehci_pdriver.h>
|
||||
|
||||
#include <platform.h>
|
||||
#include <loongson1.h>
|
||||
#include <cpufreq.h>
|
||||
#include <dma.h>
|
||||
|
|
@ -132,6 +133,7 @@ int ls1x_eth_mux_init(struct platform_device *pdev, void *priv)
|
|||
|
||||
val = __raw_readl(LS1X_MUX_CTRL1);
|
||||
|
||||
#if defined(CONFIG_LOONGSON1_LS1B)
|
||||
plat_dat = dev_get_platdata(&pdev->dev);
|
||||
if (plat_dat->bus_id) {
|
||||
__raw_writel(__raw_readl(LS1X_MUX_CTRL0) | GMAC1_USE_UART1 |
|
||||
|
|
@ -165,6 +167,17 @@ int ls1x_eth_mux_init(struct platform_device *pdev, void *priv)
|
|||
val &= ~GMAC0_SHUT;
|
||||
}
|
||||
__raw_writel(val, LS1X_MUX_CTRL1);
|
||||
#elif defined(CONFIG_LOONGSON1_LS1C)
|
||||
plat_dat = dev_get_platdata(&pdev->dev);
|
||||
|
||||
val &= ~PHY_INTF_SELI;
|
||||
if (plat_dat->interface == PHY_INTERFACE_MODE_RMII)
|
||||
val |= 0x4 << PHY_INTF_SELI_SHIFT;
|
||||
__raw_writel(val, LS1X_MUX_CTRL1);
|
||||
|
||||
val = __raw_readl(LS1X_MUX_CTRL0);
|
||||
__raw_writel(val & (~GMAC_SHUT), LS1X_MUX_CTRL0);
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -172,7 +185,11 @@ int ls1x_eth_mux_init(struct platform_device *pdev, void *priv)
|
|||
static struct plat_stmmacenet_data ls1x_eth0_pdata = {
|
||||
.bus_id = 0,
|
||||
.phy_addr = -1,
|
||||
#if defined(CONFIG_LOONGSON1_LS1B)
|
||||
.interface = PHY_INTERFACE_MODE_MII,
|
||||
#elif defined(CONFIG_LOONGSON1_LS1C)
|
||||
.interface = PHY_INTERFACE_MODE_RMII,
|
||||
#endif
|
||||
.mdio_bus_data = &ls1x_mdio_bus_data,
|
||||
.dma_cfg = &ls1x_eth_dma_cfg,
|
||||
.has_gmac = 1,
|
||||
|
|
@ -203,6 +220,7 @@ struct platform_device ls1x_eth0_pdev = {
|
|||
},
|
||||
};
|
||||
|
||||
#ifdef CONFIG_LOONGSON1_LS1B
|
||||
static struct plat_stmmacenet_data ls1x_eth1_pdata = {
|
||||
.bus_id = 1,
|
||||
.phy_addr = -1,
|
||||
|
|
@ -236,6 +254,7 @@ struct platform_device ls1x_eth1_pdev = {
|
|||
.platform_data = &ls1x_eth1_pdata,
|
||||
},
|
||||
};
|
||||
#endif /* CONFIG_LOONGSON1_LS1B */
|
||||
|
||||
/* GPIO */
|
||||
static struct resource ls1x_gpio0_resources[] = {
|
||||
|
|
|
|||
|
|
@ -22,7 +22,11 @@ const char *get_system_type(void)
|
|||
|
||||
switch (processor_id & PRID_REV_MASK) {
|
||||
case PRID_REV_LOONGSON1B:
|
||||
#if defined(CONFIG_LOONGSON1_LS1B)
|
||||
return "LOONGSON LS1B";
|
||||
#elif defined(CONFIG_LOONGSON1_LS1C)
|
||||
return "LOONGSON LS1C";
|
||||
#endif
|
||||
default:
|
||||
return "LOONGSON (unknown)";
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,5 @@
|
|||
#
|
||||
# Makefile for loongson1B based machines.
|
||||
#
|
||||
|
||||
obj-y += board.o
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
/*
|
||||
* Copyright (c) 2016 Ling Yang <gnaygnil@gmail.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.
|
||||
*/
|
||||
|
||||
#include <platform.h>
|
||||
|
||||
static struct platform_device *ls1c_platform_devices[] __initdata = {
|
||||
&ls1x_uart_pdev,
|
||||
&ls1x_eth0_pdev,
|
||||
};
|
||||
|
||||
static int __init ls1c_platform_init(void)
|
||||
{
|
||||
int err;
|
||||
|
||||
ls1x_serial_set_uartclk(&ls1x_uart_pdev);
|
||||
|
||||
err = platform_add_devices(ls1c_platform_devices,
|
||||
ARRAY_SIZE(ls1c_platform_devices));
|
||||
return err;
|
||||
}
|
||||
|
||||
arch_initcall(ls1c_platform_init);
|
||||
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