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Message-Id: <20250709-loongson1-arch-v2-7-bcff6e518c09@gmail.com>
Date: Wed, 09 Jul 2025 19:05:58 +0800
From: Keguang Zhang via B4 Relay <devnull+keguang.zhang.gmail.com@...nel.org>
To: Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Jiaxun Yang <jiaxun.yang@...goat.com>,
Keguang Zhang <keguang.zhang@...il.com>
Cc: linux-mips@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v2 7/9] MIPS: loongson32: Switch to generic kernel
From: Keguang Zhang <keguang.zhang@...il.com>
The generic MIPS kernel is fully compatible with Loongson-1 SoCs,
so migrate Loongson-1 to it.
Main changes are:
- Merge CPU_LOONGSON1B and CPU_LOONGSON1C into a unified CPU_LOONGSON32,
as both are based on the GS232 core.
- Consolidate LOONGSON1_LS1B and LOONGSON1_LS1C Kconfig options into
MACH_LOONGSON32.
- Enable MACH_GENERIC_CORE and remove the legacy custom implementation.
- Remove all Loongson-1 platform devices and associated code,
which are now redundant due to Device Tree support.
- Misc cleanup.
Partially based on earlier work by Jiaxun Yang.
Link: https://lore.kernel.org/all/20190411121915.8040-4-jiaxun.yang@flygoat.com/
Signed-off-by: Keguang Zhang <keguang.zhang@...il.com>
---
MAINTAINERS | 1 -
arch/mips/Kconfig | 64 ++---
arch/mips/include/asm/cpu-type.h | 3 +-
arch/mips/include/asm/mach-loongson32/irq.h | 107 --------
arch/mips/include/asm/mach-loongson32/loongson1.h | 50 ----
arch/mips/include/asm/mach-loongson32/platform.h | 23 --
arch/mips/include/asm/mach-loongson32/regs-mux.h | 124 ----------
arch/mips/loongson32/Kconfig | 43 +---
arch/mips/loongson32/Makefile | 17 --
arch/mips/loongson32/Platform | 1 -
arch/mips/loongson32/common/Makefile | 6 -
arch/mips/loongson32/common/irq.c | 191 ---------------
arch/mips/loongson32/common/platform.c | 285 ----------------------
arch/mips/loongson32/common/prom.c | 42 ----
arch/mips/loongson32/common/setup.c | 26 --
arch/mips/loongson32/common/time.c | 23 --
arch/mips/loongson32/ls1b/Makefile | 6 -
arch/mips/loongson32/ls1b/board.c | 55 -----
arch/mips/loongson32/ls1c/Makefile | 6 -
arch/mips/loongson32/ls1c/board.c | 23 --
20 files changed, 40 insertions(+), 1056 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index 0089ebca31cf..d42a83656879 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -16684,7 +16684,6 @@ L: linux-mips@...r.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/*/loongson,ls1*.yaml
F: arch/mips/boot/dts/loongson/loongson1*
-F: arch/mips/include/asm/mach-loongson32/
F: arch/mips/loongson32/
F: drivers/*/*loongson1*
F: drivers/mtd/nand/raw/loongson1-nand-controller.c
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 1e48184ecf1e..643236ab5a01 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -481,6 +481,23 @@ config LANTIQ
config MACH_LOONGSON32
bool "Loongson 32-bit family of machines"
+ select MACH_GENERIC_CORE
+ select USE_OF
+ select BUILTIN_DTB
+ select BOOT_ELF32
+ select CEVT_R4K
+ select CSRC_R4K
+ select COMMON_CLK
+ select DMA_NONCOHERENT
+ select GENERIC_IRQ_SHOW_LEVEL
+ select IRQ_MIPS_CPU
+ select LS1X_IRQ
+ select SYS_HAS_CPU_LOONGSON32
+ select SYS_HAS_EARLY_PRINTK
+ select USE_GENERIC_EARLY_PRINTK_8250
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ select SYS_SUPPORTS_HIGHMEM
select SYS_SUPPORTS_ZBOOT
help
This enables support for the Loongson-1 family of machines.
@@ -1386,25 +1403,20 @@ config CPU_LOONGSON2F
have a similar programming interface with FPGA northbridge used in
Loongson2E.
-config CPU_LOONGSON1B
- bool "Loongson 1B"
- depends on SYS_HAS_CPU_LOONGSON1B
- select CPU_LOONGSON32
- select LEDS_GPIO_REGISTER
- help
- The Loongson 1B is a 32-bit SoC, which implements the MIPS32
- Release 1 instruction set and part of the MIPS32 Release 2
- instruction set.
-
-config CPU_LOONGSON1C
- bool "Loongson 1C"
- depends on SYS_HAS_CPU_LOONGSON1C
- select CPU_LOONGSON32
+config CPU_LOONGSON32
+ bool "Loongson 32-bit CPU"
+ depends on SYS_HAS_CPU_LOONGSON32
+ select CPU_MIPS32
+ select CPU_MIPSR2
+ select CPU_HAS_PREFETCH
+ select CPU_HAS_LOAD_STORE_LR
+ select CPU_SUPPORTS_32BIT_KERNEL
+ select CPU_SUPPORTS_HIGHMEM
+ select CPU_SUPPORTS_CPUFREQ
select LEDS_GPIO_REGISTER
help
- The Loongson 1C is a 32-bit SoC, which implements the MIPS32
- Release 1 instruction set and part of the MIPS32 Release 2
- instruction set.
+ The Loongson GS232 microarchitecture implements the MIPS32 Release 1
+ instruction set and part of the MIPS32 Release 2 instruction set.
config CPU_MIPS32_R1
bool "MIPS32 Release 1"
@@ -1838,15 +1850,6 @@ config CPU_LOONGSON2EF
select CPU_SUPPORTS_HIGHMEM
select CPU_SUPPORTS_HUGEPAGES
-config CPU_LOONGSON32
- bool
- select CPU_MIPS32
- select CPU_MIPSR2
- select CPU_HAS_PREFETCH
- select CPU_SUPPORTS_32BIT_KERNEL
- select CPU_SUPPORTS_HIGHMEM
- select CPU_SUPPORTS_CPUFREQ
-
config CPU_BMIPS32_3300
select SMP_UP if SMP
bool
@@ -1884,10 +1887,7 @@ config SYS_HAS_CPU_LOONGSON2F
select CPU_SUPPORTS_CPUFREQ
select CPU_SUPPORTS_ADDRWINCFG if 64BIT
-config SYS_HAS_CPU_LOONGSON1B
- bool
-
-config SYS_HAS_CPU_LOONGSON1C
+config SYS_HAS_CPU_LOONGSON32
bool
config SYS_HAS_CPU_MIPS32_R1
@@ -2999,8 +2999,8 @@ choice
prompt "Kernel command line type"
depends on !CMDLINE_OVERRIDE
default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
- !MACH_LOONGSON64 && !MIPS_MALTA && \
- !CAVIUM_OCTEON_SOC
+ !MACH_LOONGSON64 && !MACH_LOONGSON32 && \
+ !MIPS_MALTA && !CAVIUM_OCTEON_SOC
default MIPS_CMDLINE_FROM_BOOTLOADER
config MIPS_CMDLINE_FROM_DTB
diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h
index a4a66bd93748..fd37a44a2f19 100644
--- a/arch/mips/include/asm/cpu-type.h
+++ b/arch/mips/include/asm/cpu-type.h
@@ -24,8 +24,7 @@ static inline int __pure __get_cpu_type(const int cpu_type)
case CPU_LOONGSON64:
#endif
-#if defined(CONFIG_SYS_HAS_CPU_LOONGSON1B) || \
- defined(CONFIG_SYS_HAS_CPU_LOONGSON1C)
+#ifdef CONFIG_SYS_HAS_CPU_LOONGSON32
case CPU_LOONGSON32:
#endif
diff --git a/arch/mips/include/asm/mach-loongson32/irq.h b/arch/mips/include/asm/mach-loongson32/irq.h
deleted file mode 100644
index 6115f025ba21..000000000000
--- a/arch/mips/include/asm/mach-loongson32/irq.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@...il.com>
- *
- * IRQ mappings for Loongson 1
- */
-
-#ifndef __ASM_MACH_LOONGSON32_IRQ_H
-#define __ASM_MACH_LOONGSON32_IRQ_H
-
-/*
- * CPU core Interrupt Numbers
- */
-#define MIPS_CPU_IRQ_BASE 0
-#define MIPS_CPU_IRQ(x) (MIPS_CPU_IRQ_BASE + (x))
-
-#define SOFTINT0_IRQ MIPS_CPU_IRQ(0)
-#define SOFTINT1_IRQ MIPS_CPU_IRQ(1)
-#define INT0_IRQ MIPS_CPU_IRQ(2)
-#define INT1_IRQ MIPS_CPU_IRQ(3)
-#define INT2_IRQ MIPS_CPU_IRQ(4)
-#define INT3_IRQ MIPS_CPU_IRQ(5)
-#define INT4_IRQ MIPS_CPU_IRQ(6)
-#define TIMER_IRQ MIPS_CPU_IRQ(7) /* cpu timer */
-
-#define MIPS_CPU_IRQS (MIPS_CPU_IRQ(7) + 1 - MIPS_CPU_IRQ_BASE)
-
-/*
- * INT0~3 Interrupt Numbers
- */
-#define LS1X_IRQ_BASE MIPS_CPU_IRQS
-#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)
-#define LS1X_SPI1_IRQ LS1X_IRQ(0, 9)
-#define LS1X_AC97_IRQ LS1X_IRQ(0, 10)
-#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)
-#define LS1X_PWM3_IRQ LS1X_IRQ(0, 20)
-#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
-
-#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)
-
-#endif /* __ASM_MACH_LOONGSON32_IRQ_H */
diff --git a/arch/mips/include/asm/mach-loongson32/loongson1.h b/arch/mips/include/asm/mach-loongson32/loongson1.h
deleted file mode 100644
index 84f45461c832..000000000000
--- a/arch/mips/include/asm/mach-loongson32/loongson1.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@...il.com>
- *
- * Register mappings for Loongson 1
- */
-
-#ifndef __ASM_MACH_LOONGSON32_LOONGSON1_H
-#define __ASM_MACH_LOONGSON32_LOONGSON1_H
-
-#if defined(CONFIG_LOONGSON1_LS1B)
-#define DEFAULT_MEMSIZE 64 /* If no memsize provided */
-#elif defined(CONFIG_LOONGSON1_LS1C)
-#define DEFAULT_MEMSIZE 32
-#endif
-
-/* Loongson 1 Register Bases */
-#define LS1X_MUX_BASE 0x1fd00420
-#define LS1X_INTC_BASE 0x1fd01040
-#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
-#define LS1X_GMAC1_BASE 0x1fe20000
-
-#define LS1X_UART0_BASE 0x1fe40000
-#define LS1X_UART1_BASE 0x1fe44000
-#define LS1X_UART2_BASE 0x1fe48000
-#define LS1X_UART3_BASE 0x1fe4c000
-#define LS1X_CAN0_BASE 0x1fe50000
-#define LS1X_CAN1_BASE 0x1fe54000
-#define LS1X_I2C0_BASE 0x1fe58000
-#define LS1X_I2C1_BASE 0x1fe68000
-#define LS1X_I2C2_BASE 0x1fe70000
-#define LS1X_PWM0_BASE 0x1fe5c000
-#define LS1X_PWM1_BASE 0x1fe5c010
-#define LS1X_PWM2_BASE 0x1fe5c020
-#define LS1X_PWM3_BASE 0x1fe5c030
-#define LS1X_WDT_BASE 0x1fe5c060
-#define LS1X_RTC_BASE 0x1fe64000
-#define LS1X_AC97_BASE 0x1fe74000
-#define LS1X_NAND_BASE 0x1fe78000
-#define LS1X_CLK_BASE 0x1fe78030
-
-#include <regs-mux.h>
-
-#endif /* __ASM_MACH_LOONGSON32_LOONGSON1_H */
diff --git a/arch/mips/include/asm/mach-loongson32/platform.h b/arch/mips/include/asm/mach-loongson32/platform.h
deleted file mode 100644
index f74292b13bc3..000000000000
--- a/arch/mips/include/asm/mach-loongson32/platform.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@...il.com>
- */
-
-#ifndef __ASM_MACH_LOONGSON32_PLATFORM_H
-#define __ASM_MACH_LOONGSON32_PLATFORM_H
-
-#include <linux/platform_device.h>
-
-extern struct platform_device ls1x_uart_pdev;
-extern struct platform_device ls1x_eth0_pdev;
-extern struct platform_device ls1x_eth1_pdev;
-extern struct platform_device ls1x_ehci_pdev;
-extern struct platform_device ls1x_gpio0_pdev;
-extern struct platform_device ls1x_gpio1_pdev;
-extern struct platform_device ls1x_rtc_pdev;
-extern struct platform_device ls1x_wdt_pdev;
-
-void __init ls1x_rtc_set_extclk(struct platform_device *pdev);
-void __init ls1x_serial_set_uartclk(struct platform_device *pdev);
-
-#endif /* __ASM_MACH_LOONGSON32_PLATFORM_H */
diff --git a/arch/mips/include/asm/mach-loongson32/regs-mux.h b/arch/mips/include/asm/mach-loongson32/regs-mux.h
deleted file mode 100644
index 95788a4f03a0..000000000000
--- a/arch/mips/include/asm/mach-loongson32/regs-mux.h
+++ /dev/null
@@ -1,124 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Copyright (c) 2014 Zhang, Keguang <keguang.zhang@...il.com>
- *
- * Loongson 1 MUX Register Definitions.
- */
-
-#ifndef __ASM_MACH_LOONGSON32_REGS_MUX_H
-#define __ASM_MACH_LOONGSON32_REGS_MUX_H
-
-#define LS1X_MUX_REG(x) \
- ((void __iomem *)KSEG1ADDR(LS1X_MUX_BASE + (x)))
-
-#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)
-#define UART1_USE_LCD0_5_6_11 BIT(26)
-#define I2C2_USE_CAN1 BIT(25)
-#define I2C1_USE_CAN0 BIT(24)
-#define NAND3_USE_UART5 BIT(23)
-#define NAND3_USE_UART4 BIT(22)
-#define NAND3_USE_UART1_DAT BIT(21)
-#define NAND3_USE_UART1_CTS BIT(20)
-#define NAND3_USE_PWM23 BIT(19)
-#define NAND3_USE_PWM01 BIT(18)
-#define NAND2_USE_UART5 BIT(17)
-#define NAND2_USE_UART4 BIT(16)
-#define NAND2_USE_UART1_DAT BIT(15)
-#define NAND2_USE_UART1_CTS BIT(14)
-#define NAND2_USE_PWM23 BIT(13)
-#define NAND2_USE_PWM01 BIT(12)
-#define NAND1_USE_UART5 BIT(11)
-#define NAND1_USE_UART4 BIT(10)
-#define NAND1_USE_UART1_DAT BIT(9)
-#define NAND1_USE_UART1_CTS BIT(8)
-#define NAND1_USE_PWM23 BIT(7)
-#define NAND1_USE_PWM01 BIT(6)
-#define GMAC1_USE_UART1 BIT(4)
-#define GMAC1_USE_UART0 BIT(3)
-#define LCD_USE_UART0_DAT BIT(2)
-#define LCD_USE_UART15 BIT(1)
-#define LCD_USE_UART0 BIT(0)
-
-/* MUX CTRL1 Register Bits */
-#define USB_RESET BIT(31)
-#define SPI1_CS_USE_PWM01 BIT(24)
-#define SPI1_USE_CAN BIT(23)
-#define DISABLE_DDR_CONFSPACE BIT(20)
-#define DDR32TO16EN BIT(16)
-#define GMAC1_SHUT BIT(13)
-#define GMAC0_SHUT BIT(12)
-#define USB_SHUT BIT(11)
-#define UART1_3_USE_CAN1 BIT(5)
-#define UART1_2_USE_CAN0 BIT(4)
-#define GMAC1_USE_TXCLK BIT(3)
-#define GMAC0_USE_TXCLK BIT(2)
-#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 */
diff --git a/arch/mips/loongson32/Kconfig b/arch/mips/loongson32/Kconfig
index a7c500959577..461d518b0033 100644
--- a/arch/mips/loongson32/Kconfig
+++ b/arch/mips/loongson32/Kconfig
@@ -1,38 +1,9 @@
# SPDX-License-Identifier: GPL-2.0
-if MACH_LOONGSON32
-choice
- prompt "Machine Type"
-
-config LOONGSON1_LS1B
- bool "Loongson LS1B board"
- select CEVT_R4K if !MIPS_EXTERNAL_TIMER
- select CSRC_R4K if !MIPS_EXTERNAL_TIMER
- select SYS_HAS_CPU_LOONGSON1B
- 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_HAS_EARLY_PRINTK
- select USE_GENERIC_EARLY_PRINTK_8250
- select COMMON_CLK
-
-config LOONGSON1_LS1C
- bool "Loongson LS1C board"
- select CEVT_R4K if !MIPS_EXTERNAL_TIMER
- select CSRC_R4K if !MIPS_EXTERNAL_TIMER
- select SYS_HAS_CPU_LOONGSON1C
- 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_HAS_EARLY_PRINTK
- select USE_GENERIC_EARLY_PRINTK_8250
- select COMMON_CLK
-endchoice
-
-endif # MACH_LOONGSON32
+config BUILTIN_DTB_NAME
+ string "Source file for built-in DTB"
+ depends on BUILTIN_DTB
+ help
+ Base name (without suffix, relative to arch/mips/boot/dts/loongson)
+ for the DTS file that will be used to produce the DTB linked into
+ the kernel.
diff --git a/arch/mips/loongson32/Makefile b/arch/mips/loongson32/Makefile
index ba10954b4b21..a4e40e534e6a 100644
--- a/arch/mips/loongson32/Makefile
+++ b/arch/mips/loongson32/Makefile
@@ -1,18 +1 @@
# SPDX-License-Identifier: GPL-2.0-only
-#
-# Common code for all Loongson 1 based systems
-#
-
-obj-$(CONFIG_MACH_LOONGSON32) += common/
-
-#
-# Loongson LS1B board
-#
-
-obj-$(CONFIG_LOONGSON1_LS1B) += ls1b/
-
-#
-# Loongson LS1C board
-#
-
-obj-$(CONFIG_LOONGSON1_LS1C) += ls1c/
diff --git a/arch/mips/loongson32/Platform b/arch/mips/loongson32/Platform
index 3b9673e7a2fa..67fd07450488 100644
--- a/arch/mips/loongson32/Platform
+++ b/arch/mips/loongson32/Platform
@@ -1,3 +1,2 @@
cflags-$(CONFIG_CPU_LOONGSON32) += -march=mips32r2 -Wa,--trap
-cflags-$(CONFIG_MACH_LOONGSON32) += -I$(srctree)/arch/mips/include/asm/mach-loongson32
load-$(CONFIG_CPU_LOONGSON32) += 0xffffffff80200000
diff --git a/arch/mips/loongson32/common/Makefile b/arch/mips/loongson32/common/Makefile
deleted file mode 100644
index f3950d308187..000000000000
--- a/arch/mips/loongson32/common/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# Makefile for common code of loongson1 based machines.
-#
-
-obj-y += time.o irq.o platform.o prom.o setup.o
diff --git a/arch/mips/loongson32/common/irq.c b/arch/mips/loongson32/common/irq.c
deleted file mode 100644
index 9a50070f74f7..000000000000
--- a/arch/mips/loongson32/common/irq.c
+++ /dev/null
@@ -1,191 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@...il.com>
- */
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <asm/irq_cpu.h>
-
-#include <loongson1.h>
-#include <irq.h>
-
-#define LS1X_INTC_REG(n, x) \
- ((void __iomem *)KSEG1ADDR(LS1X_INTC_BASE + (n * 0x18) + (x)))
-
-#define LS1X_INTC_INTISR(n) LS1X_INTC_REG(n, 0x0)
-#define LS1X_INTC_INTIEN(n) LS1X_INTC_REG(n, 0x4)
-#define LS1X_INTC_INTSET(n) LS1X_INTC_REG(n, 0x8)
-#define LS1X_INTC_INTCLR(n) LS1X_INTC_REG(n, 0xc)
-#define LS1X_INTC_INTPOL(n) LS1X_INTC_REG(n, 0x10)
-#define LS1X_INTC_INTEDGE(n) LS1X_INTC_REG(n, 0x14)
-
-static void ls1x_irq_ack(struct irq_data *d)
-{
- unsigned int bit = (d->irq - LS1X_IRQ_BASE) & 0x1f;
- unsigned int n = (d->irq - LS1X_IRQ_BASE) >> 5;
-
- __raw_writel(__raw_readl(LS1X_INTC_INTCLR(n))
- | (1 << bit), LS1X_INTC_INTCLR(n));
-}
-
-static void ls1x_irq_mask(struct irq_data *d)
-{
- unsigned int bit = (d->irq - LS1X_IRQ_BASE) & 0x1f;
- unsigned int n = (d->irq - LS1X_IRQ_BASE) >> 5;
-
- __raw_writel(__raw_readl(LS1X_INTC_INTIEN(n))
- & ~(1 << bit), LS1X_INTC_INTIEN(n));
-}
-
-static void ls1x_irq_mask_ack(struct irq_data *d)
-{
- unsigned int bit = (d->irq - LS1X_IRQ_BASE) & 0x1f;
- unsigned int n = (d->irq - LS1X_IRQ_BASE) >> 5;
-
- __raw_writel(__raw_readl(LS1X_INTC_INTIEN(n))
- & ~(1 << bit), LS1X_INTC_INTIEN(n));
- __raw_writel(__raw_readl(LS1X_INTC_INTCLR(n))
- | (1 << bit), LS1X_INTC_INTCLR(n));
-}
-
-static void ls1x_irq_unmask(struct irq_data *d)
-{
- unsigned int bit = (d->irq - LS1X_IRQ_BASE) & 0x1f;
- unsigned int n = (d->irq - LS1X_IRQ_BASE) >> 5;
-
- __raw_writel(__raw_readl(LS1X_INTC_INTIEN(n))
- | (1 << bit), LS1X_INTC_INTIEN(n));
-}
-
-static int ls1x_irq_settype(struct irq_data *d, unsigned int type)
-{
- unsigned int bit = (d->irq - LS1X_IRQ_BASE) & 0x1f;
- unsigned int n = (d->irq - LS1X_IRQ_BASE) >> 5;
-
- switch (type) {
- case IRQ_TYPE_LEVEL_HIGH:
- __raw_writel(__raw_readl(LS1X_INTC_INTPOL(n))
- | (1 << bit), LS1X_INTC_INTPOL(n));
- __raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n))
- & ~(1 << bit), LS1X_INTC_INTEDGE(n));
- break;
- case IRQ_TYPE_LEVEL_LOW:
- __raw_writel(__raw_readl(LS1X_INTC_INTPOL(n))
- & ~(1 << bit), LS1X_INTC_INTPOL(n));
- __raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n))
- & ~(1 << bit), LS1X_INTC_INTEDGE(n));
- break;
- case IRQ_TYPE_EDGE_RISING:
- __raw_writel(__raw_readl(LS1X_INTC_INTPOL(n))
- | (1 << bit), LS1X_INTC_INTPOL(n));
- __raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n))
- | (1 << bit), LS1X_INTC_INTEDGE(n));
- break;
- case IRQ_TYPE_EDGE_FALLING:
- __raw_writel(__raw_readl(LS1X_INTC_INTPOL(n))
- & ~(1 << bit), LS1X_INTC_INTPOL(n));
- __raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n))
- | (1 << bit), LS1X_INTC_INTEDGE(n));
- break;
- case IRQ_TYPE_EDGE_BOTH:
- __raw_writel(__raw_readl(LS1X_INTC_INTPOL(n))
- & ~(1 << bit), LS1X_INTC_INTPOL(n));
- __raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n))
- | (1 << bit), LS1X_INTC_INTEDGE(n));
- break;
- case IRQ_TYPE_NONE:
- break;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static struct irq_chip ls1x_irq_chip = {
- .name = "LS1X-INTC",
- .irq_ack = ls1x_irq_ack,
- .irq_mask = ls1x_irq_mask,
- .irq_mask_ack = ls1x_irq_mask_ack,
- .irq_unmask = ls1x_irq_unmask,
- .irq_set_type = ls1x_irq_settype,
-};
-
-static void ls1x_irq_dispatch(int n)
-{
- u32 int_status, irq;
-
- /* Get pending sources, masked by current enables */
- int_status = __raw_readl(LS1X_INTC_INTISR(n)) &
- __raw_readl(LS1X_INTC_INTIEN(n));
-
- if (int_status) {
- irq = LS1X_IRQ(n, __ffs(int_status));
- do_IRQ(irq);
- }
-}
-
-asmlinkage void plat_irq_dispatch(void)
-{
- unsigned int pending;
-
- pending = read_c0_cause() & read_c0_status() & ST0_IM;
-
- if (pending & CAUSEF_IP7)
- do_IRQ(TIMER_IRQ);
- else if (pending & CAUSEF_IP2)
- ls1x_irq_dispatch(0); /* INT0 */
- else if (pending & CAUSEF_IP3)
- ls1x_irq_dispatch(1); /* INT1 */
- else if (pending & CAUSEF_IP4)
- ls1x_irq_dispatch(2); /* INT2 */
- else if (pending & CAUSEF_IP5)
- ls1x_irq_dispatch(3); /* INT3 */
- else if (pending & CAUSEF_IP6)
- ls1x_irq_dispatch(4); /* INT4 */
- else
- spurious_interrupt();
-
-}
-
-static void __init ls1x_irq_init(int base)
-{
- int n;
-
- /* Disable interrupts and clear pending,
- * setup all IRQs as high level triggered
- */
- for (n = 0; n < INTN; n++) {
- __raw_writel(0x0, LS1X_INTC_INTIEN(n));
- __raw_writel(0xffffffff, LS1X_INTC_INTCLR(n));
- __raw_writel(0xffffffff, LS1X_INTC_INTPOL(n));
- /* set DMA0, DMA1 and DMA2 to edge trigger */
- __raw_writel(n ? 0x0 : 0xe000, LS1X_INTC_INTEDGE(n));
- }
-
-
- for (n = base; n < NR_IRQS; n++) {
- irq_set_chip_and_handler(n, &ls1x_irq_chip,
- handle_level_irq);
- }
-
- if (request_irq(INT0_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
- pr_err("Failed to request irq %d (cascade)\n", INT0_IRQ);
- if (request_irq(INT1_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
- pr_err("Failed to request irq %d (cascade)\n", INT1_IRQ);
- if (request_irq(INT2_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
- pr_err("Failed to request irq %d (cascade)\n", INT2_IRQ);
- if (request_irq(INT3_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
- pr_err("Failed to request irq %d (cascade)\n", INT3_IRQ);
-#if defined(CONFIG_LOONGSON1_LS1C)
- if (request_irq(INT4_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL))
- pr_err("Failed to request irq %d (cascade)\n", INT4_IRQ);
-#endif
-}
-
-void __init arch_init_irq(void)
-{
- mips_cpu_irq_init();
- ls1x_irq_init(LS1X_IRQ_BASE);
-}
diff --git a/arch/mips/loongson32/common/platform.c b/arch/mips/loongson32/common/platform.c
deleted file mode 100644
index 623eb4bc7b41..000000000000
--- a/arch/mips/loongson32/common/platform.c
+++ /dev/null
@@ -1,285 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (c) 2011-2016 Zhang, Keguang <keguang.zhang@...il.com>
- */
-
-#include <linux/clk.h>
-#include <linux/dma-mapping.h>
-#include <linux/err.h>
-#include <linux/mtd/partitions.h>
-#include <linux/sizes.h>
-#include <linux/phy.h>
-#include <linux/serial_8250.h>
-#include <linux/stmmac.h>
-#include <linux/usb/ehci_pdriver.h>
-
-#include <platform.h>
-#include <loongson1.h>
-
-/* 8250/16550 compatible UART */
-#define LS1X_UART(_id) \
- { \
- .mapbase = LS1X_UART ## _id ## _BASE, \
- .irq = LS1X_UART ## _id ## _IRQ, \
- .iotype = UPIO_MEM, \
- .flags = UPF_IOREMAP | UPF_FIXED_TYPE, \
- .type = PORT_16550A, \
- }
-
-static struct plat_serial8250_port ls1x_serial8250_pdata[] = {
- LS1X_UART(0),
- LS1X_UART(1),
- LS1X_UART(2),
- LS1X_UART(3),
- {},
-};
-
-struct platform_device ls1x_uart_pdev = {
- .name = "serial8250",
- .id = PLAT8250_DEV_PLATFORM,
- .dev = {
- .platform_data = ls1x_serial8250_pdata,
- },
-};
-
-void __init ls1x_serial_set_uartclk(struct platform_device *pdev)
-{
- struct clk *clk;
- struct plat_serial8250_port *p;
-
- clk = clk_get(&pdev->dev, pdev->name);
- if (IS_ERR(clk)) {
- pr_err("unable to get %s clock, err=%ld",
- pdev->name, PTR_ERR(clk));
- return;
- }
- clk_prepare_enable(clk);
-
- for (p = pdev->dev.platform_data; p->flags != 0; ++p)
- p->uartclk = clk_get_rate(clk);
-}
-
-/* Synopsys Ethernet GMAC */
-static struct stmmac_mdio_bus_data ls1x_mdio_bus_data = {
- .phy_mask = 0,
-};
-
-static struct stmmac_dma_cfg ls1x_eth_dma_cfg = {
- .pbl = 1,
-};
-
-int ls1x_eth_mux_init(struct platform_device *pdev, void *priv)
-{
- struct plat_stmmacenet_data *plat_dat = NULL;
- u32 val;
-
- 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 |
- GMAC1_USE_UART0, LS1X_MUX_CTRL0);
- switch (plat_dat->phy_interface) {
- case PHY_INTERFACE_MODE_RGMII:
- val &= ~(GMAC1_USE_TXCLK | GMAC1_USE_PWM23);
- break;
- case PHY_INTERFACE_MODE_MII:
- val |= (GMAC1_USE_TXCLK | GMAC1_USE_PWM23);
- break;
- default:
- pr_err("unsupported mii mode %d\n",
- plat_dat->phy_interface);
- return -ENOTSUPP;
- }
- val &= ~GMAC1_SHUT;
- } else {
- switch (plat_dat->phy_interface) {
- case PHY_INTERFACE_MODE_RGMII:
- val &= ~(GMAC0_USE_TXCLK | GMAC0_USE_PWM01);
- break;
- case PHY_INTERFACE_MODE_MII:
- val |= (GMAC0_USE_TXCLK | GMAC0_USE_PWM01);
- break;
- default:
- pr_err("unsupported mii mode %d\n",
- plat_dat->phy_interface);
- return -ENOTSUPP;
- }
- 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->phy_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;
-}
-
-static struct plat_stmmacenet_data ls1x_eth0_pdata = {
- .bus_id = 0,
- .phy_addr = -1,
-#if defined(CONFIG_LOONGSON1_LS1B)
- .phy_interface = PHY_INTERFACE_MODE_MII,
-#elif defined(CONFIG_LOONGSON1_LS1C)
- .phy_interface = PHY_INTERFACE_MODE_RMII,
-#endif
- .mdio_bus_data = &ls1x_mdio_bus_data,
- .dma_cfg = &ls1x_eth_dma_cfg,
- .has_gmac = 1,
- .tx_coe = 1,
- .rx_queues_to_use = 1,
- .tx_queues_to_use = 1,
- .init = ls1x_eth_mux_init,
-};
-
-static struct resource ls1x_eth0_resources[] = {
- [0] = {
- .start = LS1X_GMAC0_BASE,
- .end = LS1X_GMAC0_BASE + SZ_64K - 1,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .name = "macirq",
- .start = LS1X_GMAC0_IRQ,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-struct platform_device ls1x_eth0_pdev = {
- .name = "stmmaceth",
- .id = 0,
- .num_resources = ARRAY_SIZE(ls1x_eth0_resources),
- .resource = ls1x_eth0_resources,
- .dev = {
- .platform_data = &ls1x_eth0_pdata,
- },
-};
-
-#ifdef CONFIG_LOONGSON1_LS1B
-static struct plat_stmmacenet_data ls1x_eth1_pdata = {
- .bus_id = 1,
- .phy_addr = -1,
- .phy_interface = PHY_INTERFACE_MODE_MII,
- .mdio_bus_data = &ls1x_mdio_bus_data,
- .dma_cfg = &ls1x_eth_dma_cfg,
- .has_gmac = 1,
- .tx_coe = 1,
- .rx_queues_to_use = 1,
- .tx_queues_to_use = 1,
- .init = ls1x_eth_mux_init,
-};
-
-static struct resource ls1x_eth1_resources[] = {
- [0] = {
- .start = LS1X_GMAC1_BASE,
- .end = LS1X_GMAC1_BASE + SZ_64K - 1,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .name = "macirq",
- .start = LS1X_GMAC1_IRQ,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-struct platform_device ls1x_eth1_pdev = {
- .name = "stmmaceth",
- .id = 1,
- .num_resources = ARRAY_SIZE(ls1x_eth1_resources),
- .resource = ls1x_eth1_resources,
- .dev = {
- .platform_data = &ls1x_eth1_pdata,
- },
-};
-#endif /* CONFIG_LOONGSON1_LS1B */
-
-/* GPIO */
-static struct resource ls1x_gpio0_resources[] = {
- [0] = {
- .start = LS1X_GPIO0_BASE,
- .end = LS1X_GPIO0_BASE + SZ_4 - 1,
- .flags = IORESOURCE_MEM,
- },
-};
-
-struct platform_device ls1x_gpio0_pdev = {
- .name = "ls1x-gpio",
- .id = 0,
- .num_resources = ARRAY_SIZE(ls1x_gpio0_resources),
- .resource = ls1x_gpio0_resources,
-};
-
-static struct resource ls1x_gpio1_resources[] = {
- [0] = {
- .start = LS1X_GPIO1_BASE,
- .end = LS1X_GPIO1_BASE + SZ_4 - 1,
- .flags = IORESOURCE_MEM,
- },
-};
-
-struct platform_device ls1x_gpio1_pdev = {
- .name = "ls1x-gpio",
- .id = 1,
- .num_resources = ARRAY_SIZE(ls1x_gpio1_resources),
- .resource = ls1x_gpio1_resources,
-};
-
-/* USB EHCI */
-static u64 ls1x_ehci_dmamask = DMA_BIT_MASK(32);
-
-static struct resource ls1x_ehci_resources[] = {
- [0] = {
- .start = LS1X_EHCI_BASE,
- .end = LS1X_EHCI_BASE + SZ_32K - 1,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = LS1X_EHCI_IRQ,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static struct usb_ehci_pdata ls1x_ehci_pdata = {
-};
-
-struct platform_device ls1x_ehci_pdev = {
- .name = "ehci-platform",
- .id = -1,
- .num_resources = ARRAY_SIZE(ls1x_ehci_resources),
- .resource = ls1x_ehci_resources,
- .dev = {
- .dma_mask = &ls1x_ehci_dmamask,
- .platform_data = &ls1x_ehci_pdata,
- },
-};
-
-/* Real Time Clock */
-struct platform_device ls1x_rtc_pdev = {
- .name = "ls1x-rtc",
- .id = -1,
-};
-
-/* Watchdog */
-static struct resource ls1x_wdt_resources[] = {
- {
- .start = LS1X_WDT_BASE,
- .end = LS1X_WDT_BASE + SZ_16 - 1,
- .flags = IORESOURCE_MEM,
- },
-};
-
-struct platform_device ls1x_wdt_pdev = {
- .name = "ls1x-wdt",
- .id = -1,
- .num_resources = ARRAY_SIZE(ls1x_wdt_resources),
- .resource = ls1x_wdt_resources,
-};
diff --git a/arch/mips/loongson32/common/prom.c b/arch/mips/loongson32/common/prom.c
deleted file mode 100644
index fc580a22748e..000000000000
--- a/arch/mips/loongson32/common/prom.c
+++ /dev/null
@@ -1,42 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@...il.com>
- *
- * Modified from arch/mips/pnx833x/common/prom.c.
- */
-
-#include <linux/io.h>
-#include <linux/init.h>
-#include <linux/memblock.h>
-#include <linux/serial_reg.h>
-#include <asm/fw/fw.h>
-
-#include <loongson1.h>
-
-unsigned long memsize;
-
-void __init prom_init(void)
-{
- void __iomem *uart_base;
-
- fw_init_cmdline();
-
- memsize = fw_getenvl("memsize");
- if(!memsize)
- memsize = DEFAULT_MEMSIZE;
-
- if (strstr(arcs_cmdline, "console=ttyS3"))
- uart_base = ioremap(LS1X_UART3_BASE, 0x0f);
- else if (strstr(arcs_cmdline, "console=ttyS2"))
- uart_base = ioremap(LS1X_UART2_BASE, 0x0f);
- else if (strstr(arcs_cmdline, "console=ttyS1"))
- uart_base = ioremap(LS1X_UART1_BASE, 0x0f);
- else
- uart_base = ioremap(LS1X_UART0_BASE, 0x0f);
- setup_8250_early_printk_port((unsigned long)uart_base, 0, 0);
-}
-
-void __init plat_mem_setup(void)
-{
- memblock_add(0x0, (memsize << 20));
-}
diff --git a/arch/mips/loongson32/common/setup.c b/arch/mips/loongson32/common/setup.c
deleted file mode 100644
index 4733fe037176..000000000000
--- a/arch/mips/loongson32/common/setup.c
+++ /dev/null
@@ -1,26 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@...il.com>
- */
-
-#include <linux/io.h>
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <asm/cpu-info.h>
-#include <asm/bootinfo.h>
-
-const char *get_system_type(void)
-{
- unsigned int processor_id = (¤t_cpu_data)->processor_id;
-
- 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)";
- }
-}
diff --git a/arch/mips/loongson32/common/time.c b/arch/mips/loongson32/common/time.c
deleted file mode 100644
index 74ad2b17918d..000000000000
--- a/arch/mips/loongson32/common/time.c
+++ /dev/null
@@ -1,23 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (c) 2014 Zhang, Keguang <keguang.zhang@...il.com>
- */
-
-#include <linux/clk.h>
-#include <linux/of_clk.h>
-#include <asm/time.h>
-
-void __init plat_time_init(void)
-{
- struct clk *clk = NULL;
-
- /* initialize LS1X clocks */
- of_clk_init(NULL);
-
- /* setup mips r4k timer */
- clk = clk_get(NULL, "cpu_clk");
- if (IS_ERR(clk))
- panic("unable to get cpu clock, err=%ld", PTR_ERR(clk));
-
- mips_hpt_frequency = clk_get_rate(clk) / 2;
-}
diff --git a/arch/mips/loongson32/ls1b/Makefile b/arch/mips/loongson32/ls1b/Makefile
deleted file mode 100644
index 33c574dc0f7f..000000000000
--- a/arch/mips/loongson32/ls1b/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# Makefile for loongson1B based machines.
-#
-
-obj-y += board.o
diff --git a/arch/mips/loongson32/ls1b/board.c b/arch/mips/loongson32/ls1b/board.c
deleted file mode 100644
index fe115bdcb22c..000000000000
--- a/arch/mips/loongson32/ls1b/board.c
+++ /dev/null
@@ -1,55 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (c) 2011-2016 Zhang, Keguang <keguang.zhang@...il.com>
- */
-
-#include <linux/leds.h>
-#include <linux/mtd/partitions.h>
-#include <linux/sizes.h>
-
-#include <loongson1.h>
-#include <platform.h>
-
-static const struct gpio_led ls1x_gpio_leds[] __initconst = {
- {
- .name = "LED9",
- .default_trigger = "heartbeat",
- .gpio = 38,
- .active_low = 1,
- .default_state = LEDS_GPIO_DEFSTATE_OFF,
- }, {
- .name = "LED6",
- .default_trigger = "nand-disk",
- .gpio = 39,
- .active_low = 1,
- .default_state = LEDS_GPIO_DEFSTATE_OFF,
- },
-};
-
-static const struct gpio_led_platform_data ls1x_led_pdata __initconst = {
- .num_leds = ARRAY_SIZE(ls1x_gpio_leds),
- .leds = ls1x_gpio_leds,
-};
-
-static struct platform_device *ls1b_platform_devices[] __initdata = {
- &ls1x_uart_pdev,
- &ls1x_eth0_pdev,
- &ls1x_eth1_pdev,
- &ls1x_ehci_pdev,
- &ls1x_gpio0_pdev,
- &ls1x_gpio1_pdev,
- &ls1x_rtc_pdev,
- &ls1x_wdt_pdev,
-};
-
-static int __init ls1b_platform_init(void)
-{
- ls1x_serial_set_uartclk(&ls1x_uart_pdev);
-
- gpio_led_register_device(-1, &ls1x_led_pdata);
-
- return platform_add_devices(ls1b_platform_devices,
- ARRAY_SIZE(ls1b_platform_devices));
-}
-
-arch_initcall(ls1b_platform_init);
diff --git a/arch/mips/loongson32/ls1c/Makefile b/arch/mips/loongson32/ls1c/Makefile
deleted file mode 100644
index 1cf3aa264d55..000000000000
--- a/arch/mips/loongson32/ls1c/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-#
-# Makefile for loongson1C based machines.
-#
-
-obj-y += board.o
diff --git a/arch/mips/loongson32/ls1c/board.c b/arch/mips/loongson32/ls1c/board.c
deleted file mode 100644
index 9dcfe9de55b0..000000000000
--- a/arch/mips/loongson32/ls1c/board.c
+++ /dev/null
@@ -1,23 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright (c) 2016 Yang Ling <gnaygnil@...il.com>
- */
-
-#include <platform.h>
-
-static struct platform_device *ls1c_platform_devices[] __initdata = {
- &ls1x_uart_pdev,
- &ls1x_eth0_pdev,
- &ls1x_rtc_pdev,
- &ls1x_wdt_pdev,
-};
-
-static int __init ls1c_platform_init(void)
-{
- ls1x_serial_set_uartclk(&ls1x_uart_pdev);
-
- return platform_add_devices(ls1c_platform_devices,
- ARRAY_SIZE(ls1c_platform_devices));
-}
-
-arch_initcall(ls1c_platform_init);
--
2.43.0
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