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-rw-r--r--kernel/arch/mips/loongson1/Kconfig61
-rw-r--r--kernel/arch/mips/loongson1/Makefile11
-rw-r--r--kernel/arch/mips/loongson1/Platform7
-rw-r--r--kernel/arch/mips/loongson1/common/Makefile5
-rw-r--r--kernel/arch/mips/loongson1/common/irq.c147
-rw-r--r--kernel/arch/mips/loongson1/common/platform.c234
-rw-r--r--kernel/arch/mips/loongson1/common/prom.c83
-rw-r--r--kernel/arch/mips/loongson1/common/reset.c54
-rw-r--r--kernel/arch/mips/loongson1/common/setup.c29
-rw-r--r--kernel/arch/mips/loongson1/common/time.c226
-rw-r--r--kernel/arch/mips/loongson1/ls1b/Makefile5
-rw-r--r--kernel/arch/mips/loongson1/ls1b/board.c32
12 files changed, 0 insertions, 894 deletions
diff --git a/kernel/arch/mips/loongson1/Kconfig b/kernel/arch/mips/loongson1/Kconfig
deleted file mode 100644
index a2b796eaf..000000000
--- a/kernel/arch/mips/loongson1/Kconfig
+++ /dev/null
@@ -1,61 +0,0 @@
-if MACH_LOONGSON1
-
-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_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
-
-endchoice
-
-menuconfig CEVT_CSRC_LS1X
- bool "Use PWM Timer for clockevent/clocksource"
- select MIPS_EXTERNAL_TIMER
- depends on CPU_LOONGSON1
- help
- This option changes the default clockevent/clocksource to PWM Timer,
- and is required by Loongson1 CPUFreq support.
-
- If unsure, say N.
-
-choice
- prompt "Select clockevent/clocksource"
- depends on CEVT_CSRC_LS1X
- default TIMER_USE_PWM0
-
-config TIMER_USE_PWM0
- bool "Use PWM Timer 0"
- help
- Use PWM Timer 0 as the default clockevent/clocksourcer.
-
-config TIMER_USE_PWM1
- bool "Use PWM Timer 1"
- help
- Use PWM Timer 1 as the default clockevent/clocksourcer.
-
-config TIMER_USE_PWM2
- bool "Use PWM Timer 2"
- help
- Use PWM Timer 2 as the default clockevent/clocksourcer.
-
-config TIMER_USE_PWM3
- bool "Use PWM Timer 3"
- help
- Use PWM Timer 3 as the default clockevent/clocksourcer.
-
-endchoice
-
-endif # MACH_LOONGSON1
diff --git a/kernel/arch/mips/loongson1/Makefile b/kernel/arch/mips/loongson1/Makefile
deleted file mode 100644
index 9719c7588..000000000
--- a/kernel/arch/mips/loongson1/Makefile
+++ /dev/null
@@ -1,11 +0,0 @@
-#
-# Common code for all Loongson 1 based systems
-#
-
-obj-$(CONFIG_MACH_LOONGSON1) += common/
-
-#
-# Loongson LS1B board
-#
-
-obj-$(CONFIG_LOONGSON1_LS1B) += ls1b/
diff --git a/kernel/arch/mips/loongson1/Platform b/kernel/arch/mips/loongson1/Platform
deleted file mode 100644
index 11863441d..000000000
--- a/kernel/arch/mips/loongson1/Platform
+++ /dev/null
@@ -1,7 +0,0 @@
-cflags-$(CONFIG_CPU_LOONGSON1) += \
- $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
- -Wa,-mips32r2 -Wa,--trap
-
-platform-$(CONFIG_MACH_LOONGSON1) += loongson1/
-cflags-$(CONFIG_MACH_LOONGSON1) += -I$(srctree)/arch/mips/include/asm/mach-loongson1
-load-$(CONFIG_LOONGSON1_LS1B) += 0xffffffff80100000
diff --git a/kernel/arch/mips/loongson1/common/Makefile b/kernel/arch/mips/loongson1/common/Makefile
deleted file mode 100644
index 723b4ce3b..000000000
--- a/kernel/arch/mips/loongson1/common/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for common code of loongson1 based machines.
-#
-
-obj-y += time.o irq.o platform.o prom.o reset.o setup.o
diff --git a/kernel/arch/mips/loongson1/common/irq.c b/kernel/arch/mips/loongson1/common/irq.c
deleted file mode 100644
index 455a7704a..000000000
--- a/kernel/arch/mips/loongson1/common/irq.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@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 <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 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,
-};
-
-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();
-
-}
-
-struct irqaction cascade_irqaction = {
- .handler = no_action,
- .name = "cascade",
- .flags = IRQF_NO_THREAD,
-};
-
-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 < 4; 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 < LS1X_IRQS; n++) {
- irq_set_chip_and_handler(n, &ls1x_irq_chip,
- handle_level_irq);
- }
-
- setup_irq(INT0_IRQ, &cascade_irqaction);
- setup_irq(INT1_IRQ, &cascade_irqaction);
- setup_irq(INT2_IRQ, &cascade_irqaction);
- setup_irq(INT3_IRQ, &cascade_irqaction);
-}
-
-void __init arch_init_irq(void)
-{
- mips_cpu_irq_init();
- ls1x_irq_init(LS1X_IRQ_BASE);
-}
diff --git a/kernel/arch/mips/loongson1/common/platform.c b/kernel/arch/mips/loongson1/common/platform.c
deleted file mode 100644
index ddf1d4cbf..000000000
--- a/kernel/arch/mips/loongson1/common/platform.c
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
- * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@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 <linux/clk.h>
-#include <linux/dma-mapping.h>
-#include <linux/err.h>
-#include <linux/phy.h>
-#include <linux/serial_8250.h>
-#include <linux/stmmac.h>
-#include <linux/usb/ehci_pdriver.h>
-#include <asm-generic/sizes.h>
-
-#include <cpufreq.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_setup(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);
-}
-
-/* CPUFreq */
-static struct plat_ls1x_cpufreq ls1x_cpufreq_pdata = {
- .clk_name = "cpu_clk",
- .osc_clk_name = "osc_33m_clk",
- .max_freq = 266 * 1000,
- .min_freq = 33 * 1000,
-};
-
-struct platform_device ls1x_cpufreq_pdev = {
- .name = "ls1x-cpufreq",
- .dev = {
- .platform_data = &ls1x_cpufreq_pdata,
- },
-};
-
-/* 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);
-
- 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->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->interface);
- return -ENOTSUPP;
- }
- val &= ~GMAC1_SHUT;
- } else {
- switch (plat_dat->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->interface);
- return -ENOTSUPP;
- }
- val &= ~GMAC0_SHUT;
- }
- __raw_writel(val, LS1X_MUX_CTRL1);
-
- return 0;
-}
-
-static struct plat_stmmacenet_data ls1x_eth0_pdata = {
- .bus_id = 0,
- .phy_addr = -1,
- .interface = PHY_INTERFACE_MODE_MII,
- .mdio_bus_data = &ls1x_mdio_bus_data,
- .dma_cfg = &ls1x_eth_dma_cfg,
- .has_gmac = 1,
- .tx_coe = 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,
- },
-};
-
-static struct plat_stmmacenet_data ls1x_eth1_pdata = {
- .bus_id = 1,
- .phy_addr = -1,
- .interface = PHY_INTERFACE_MODE_MII,
- .mdio_bus_data = &ls1x_mdio_bus_data,
- .dma_cfg = &ls1x_eth_dma_cfg,
- .has_gmac = 1,
- .tx_coe = 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,
- },
-};
-
-/* 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,
-};
diff --git a/kernel/arch/mips/loongson1/common/prom.c b/kernel/arch/mips/loongson1/common/prom.c
deleted file mode 100644
index 68600980e..000000000
--- a/kernel/arch/mips/loongson1/common/prom.c
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
- *
- * Modified from arch/mips/pnx833x/common/prom.c.
- *
- * 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 <linux/serial_reg.h>
-#include <asm/bootinfo.h>
-
-#include <loongson1.h>
-#include <prom.h>
-
-int prom_argc;
-char **prom_argv, **prom_envp;
-unsigned long memsize, highmemsize;
-
-char *prom_getenv(char *envname)
-{
- char **env = prom_envp;
- int i;
-
- i = strlen(envname);
-
- while (*env) {
- if (strncmp(envname, *env, i) == 0 && *(*env + i) == '=')
- return *env + i + 1;
- env++;
- }
-
- return 0;
-}
-
-static inline unsigned long env_or_default(char *env, unsigned long dfl)
-{
- char *str = prom_getenv(env);
- return str ? simple_strtol(str, 0, 0) : dfl;
-}
-
-void __init prom_init_cmdline(void)
-{
- char *c = &(arcs_cmdline[0]);
- int i;
-
- for (i = 1; i < prom_argc; i++) {
- strcpy(c, prom_argv[i]);
- c += strlen(prom_argv[i]);
- if (i < prom_argc - 1)
- *c++ = ' ';
- }
- *c = 0;
-}
-
-void __init prom_init(void)
-{
- void __iomem *uart_base;
- prom_argc = fw_arg0;
- prom_argv = (char **)fw_arg1;
- prom_envp = (char **)fw_arg2;
-
- prom_init_cmdline();
-
- memsize = env_or_default("memsize", DEFAULT_MEMSIZE);
- highmemsize = env_or_default("highmemsize", 0x0);
-
- if (strstr(arcs_cmdline, "console=ttyS3"))
- uart_base = ioremap_nocache(LS1X_UART3_BASE, 0x0f);
- else if (strstr(arcs_cmdline, "console=ttyS2"))
- uart_base = ioremap_nocache(LS1X_UART2_BASE, 0x0f);
- else if (strstr(arcs_cmdline, "console=ttyS1"))
- uart_base = ioremap_nocache(LS1X_UART1_BASE, 0x0f);
- else
- uart_base = ioremap_nocache(LS1X_UART0_BASE, 0x0f);
- setup_8250_early_printk_port((unsigned long)uart_base, 0, 0);
-}
-
-void __init prom_free_prom_memory(void)
-{
-}
diff --git a/kernel/arch/mips/loongson1/common/reset.c b/kernel/arch/mips/loongson1/common/reset.c
deleted file mode 100644
index c41e4ca56..000000000
--- a/kernel/arch/mips/loongson1/common/reset.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@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 <linux/io.h>
-#include <linux/pm.h>
-#include <asm/idle.h>
-#include <asm/reboot.h>
-
-#include <loongson1.h>
-
-static void __iomem *wdt_base;
-
-static void ls1x_halt(void)
-{
- while (1) {
- if (cpu_wait)
- cpu_wait();
- }
-}
-
-static void ls1x_restart(char *command)
-{
- __raw_writel(0x1, wdt_base + WDT_EN);
- __raw_writel(0x1, wdt_base + WDT_TIMER);
- __raw_writel(0x1, wdt_base + WDT_SET);
-
- ls1x_halt();
-}
-
-static void ls1x_power_off(void)
-{
- ls1x_halt();
-}
-
-static int __init ls1x_reboot_setup(void)
-{
- wdt_base = ioremap_nocache(LS1X_WDT_BASE, 0x0f);
- if (!wdt_base)
- panic("Failed to remap watchdog registers");
-
- _machine_restart = ls1x_restart;
- _machine_halt = ls1x_halt;
- pm_power_off = ls1x_power_off;
-
- return 0;
-}
-
-arch_initcall(ls1x_reboot_setup);
diff --git a/kernel/arch/mips/loongson1/common/setup.c b/kernel/arch/mips/loongson1/common/setup.c
deleted file mode 100644
index 62f41afee..000000000
--- a/kernel/arch/mips/loongson1/common/setup.c
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@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 <asm/bootinfo.h>
-
-#include <prom.h>
-
-void __init plat_mem_setup(void)
-{
- add_memory_region(0x0, (memsize << 20), BOOT_MEM_RAM);
-}
-
-const char *get_system_type(void)
-{
- unsigned int processor_id = (&current_cpu_data)->processor_id;
-
- switch (processor_id & PRID_REV_MASK) {
- case PRID_REV_LOONGSON1B:
- return "LOONGSON LS1B";
- default:
- return "LOONGSON (unknown)";
- }
-}
diff --git a/kernel/arch/mips/loongson1/common/time.c b/kernel/arch/mips/loongson1/common/time.c
deleted file mode 100644
index df0f850d6..000000000
--- a/kernel/arch/mips/loongson1/common/time.c
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- * Copyright (c) 2014 Zhang, Keguang <keguang.zhang@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 <linux/clk.h>
-#include <linux/interrupt.h>
-#include <asm/time.h>
-
-#include <loongson1.h>
-#include <platform.h>
-
-#ifdef CONFIG_CEVT_CSRC_LS1X
-
-#if defined(CONFIG_TIMER_USE_PWM1)
-#define LS1X_TIMER_BASE LS1X_PWM1_BASE
-#define LS1X_TIMER_IRQ LS1X_PWM1_IRQ
-
-#elif defined(CONFIG_TIMER_USE_PWM2)
-#define LS1X_TIMER_BASE LS1X_PWM2_BASE
-#define LS1X_TIMER_IRQ LS1X_PWM2_IRQ
-
-#elif defined(CONFIG_TIMER_USE_PWM3)
-#define LS1X_TIMER_BASE LS1X_PWM3_BASE
-#define LS1X_TIMER_IRQ LS1X_PWM3_IRQ
-
-#else
-#define LS1X_TIMER_BASE LS1X_PWM0_BASE
-#define LS1X_TIMER_IRQ LS1X_PWM0_IRQ
-#endif
-
-DEFINE_RAW_SPINLOCK(ls1x_timer_lock);
-
-static void __iomem *timer_base;
-static uint32_t ls1x_jiffies_per_tick;
-
-static inline void ls1x_pwmtimer_set_period(uint32_t period)
-{
- __raw_writel(period, timer_base + PWM_HRC);
- __raw_writel(period, timer_base + PWM_LRC);
-}
-
-static inline void ls1x_pwmtimer_restart(void)
-{
- __raw_writel(0x0, timer_base + PWM_CNT);
- __raw_writel(INT_EN | CNT_EN, timer_base + PWM_CTRL);
-}
-
-void __init ls1x_pwmtimer_init(void)
-{
- timer_base = ioremap(LS1X_TIMER_BASE, 0xf);
- if (!timer_base)
- panic("Failed to remap timer registers");
-
- ls1x_jiffies_per_tick = DIV_ROUND_CLOSEST(mips_hpt_frequency, HZ);
-
- ls1x_pwmtimer_set_period(ls1x_jiffies_per_tick);
- ls1x_pwmtimer_restart();
-}
-
-static cycle_t ls1x_clocksource_read(struct clocksource *cs)
-{
- unsigned long flags;
- int count;
- u32 jifs;
- static int old_count;
- static u32 old_jifs;
-
- raw_spin_lock_irqsave(&ls1x_timer_lock, flags);
- /*
- * Although our caller may have the read side of xtime_lock,
- * this is now a seqlock, and we are cheating in this routine
- * by having side effects on state that we cannot undo if
- * there is a collision on the seqlock and our caller has to
- * retry. (Namely, old_jifs and old_count.) So we must treat
- * jiffies as volatile despite the lock. We read jiffies
- * before latching the timer count to guarantee that although
- * the jiffies value might be older than the count (that is,
- * the counter may underflow between the last point where
- * jiffies was incremented and the point where we latch the
- * count), it cannot be newer.
- */
- jifs = jiffies;
- /* read the count */
- count = __raw_readl(timer_base + PWM_CNT);
-
- /*
- * It's possible for count to appear to go the wrong way for this
- * reason:
- *
- * The timer counter underflows, but we haven't handled the resulting
- * interrupt and incremented jiffies yet.
- *
- * Previous attempts to handle these cases intelligently were buggy, so
- * we just do the simple thing now.
- */
- if (count < old_count && jifs == old_jifs)
- count = old_count;
-
- old_count = count;
- old_jifs = jifs;
-
- raw_spin_unlock_irqrestore(&ls1x_timer_lock, flags);
-
- return (cycle_t) (jifs * ls1x_jiffies_per_tick) + count;
-}
-
-static struct clocksource ls1x_clocksource = {
- .name = "ls1x-pwmtimer",
- .read = ls1x_clocksource_read,
- .mask = CLOCKSOURCE_MASK(24),
- .flags = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-static irqreturn_t ls1x_clockevent_isr(int irq, void *devid)
-{
- struct clock_event_device *cd = devid;
-
- ls1x_pwmtimer_restart();
- cd->event_handler(cd);
-
- return IRQ_HANDLED;
-}
-
-static void ls1x_clockevent_set_mode(enum clock_event_mode mode,
- struct clock_event_device *cd)
-{
- raw_spin_lock(&ls1x_timer_lock);
- switch (mode) {
- case CLOCK_EVT_MODE_PERIODIC:
- ls1x_pwmtimer_set_period(ls1x_jiffies_per_tick);
- ls1x_pwmtimer_restart();
- case CLOCK_EVT_MODE_RESUME:
- __raw_writel(INT_EN | CNT_EN, timer_base + PWM_CTRL);
- break;
- case CLOCK_EVT_MODE_ONESHOT:
- case CLOCK_EVT_MODE_SHUTDOWN:
- __raw_writel(__raw_readl(timer_base + PWM_CTRL) & ~CNT_EN,
- timer_base + PWM_CTRL);
- break;
- default:
- break;
- }
- raw_spin_unlock(&ls1x_timer_lock);
-}
-
-static int ls1x_clockevent_set_next(unsigned long evt,
- struct clock_event_device *cd)
-{
- raw_spin_lock(&ls1x_timer_lock);
- ls1x_pwmtimer_set_period(evt);
- ls1x_pwmtimer_restart();
- raw_spin_unlock(&ls1x_timer_lock);
-
- return 0;
-}
-
-static struct clock_event_device ls1x_clockevent = {
- .name = "ls1x-pwmtimer",
- .features = CLOCK_EVT_FEAT_PERIODIC,
- .rating = 300,
- .irq = LS1X_TIMER_IRQ,
- .set_next_event = ls1x_clockevent_set_next,
- .set_mode = ls1x_clockevent_set_mode,
-};
-
-static struct irqaction ls1x_pwmtimer_irqaction = {
- .name = "ls1x-pwmtimer",
- .handler = ls1x_clockevent_isr,
- .dev_id = &ls1x_clockevent,
- .flags = IRQF_PERCPU | IRQF_TIMER,
-};
-
-static void __init ls1x_time_init(void)
-{
- struct clock_event_device *cd = &ls1x_clockevent;
- int ret;
-
- if (!mips_hpt_frequency)
- panic("Invalid timer clock rate");
-
- ls1x_pwmtimer_init();
-
- clockevent_set_clock(cd, mips_hpt_frequency);
- cd->max_delta_ns = clockevent_delta2ns(0xffffff, cd);
- cd->min_delta_ns = clockevent_delta2ns(0x000300, cd);
- cd->cpumask = cpumask_of(smp_processor_id());
- clockevents_register_device(cd);
-
- ls1x_clocksource.rating = 200 + mips_hpt_frequency / 10000000;
- ret = clocksource_register_hz(&ls1x_clocksource, mips_hpt_frequency);
- if (ret)
- panic(KERN_ERR "Failed to register clocksource: %d\n", ret);
-
- setup_irq(LS1X_TIMER_IRQ, &ls1x_pwmtimer_irqaction);
-}
-#endif /* CONFIG_CEVT_CSRC_LS1X */
-
-void __init plat_time_init(void)
-{
- struct clk *clk = NULL;
-
- /* initialize LS1X clocks */
- ls1x_clk_init();
-
-#ifdef CONFIG_CEVT_CSRC_LS1X
- /* setup LS1X PWM timer */
- clk = clk_get(NULL, "ls1x_pwmtimer");
- if (IS_ERR(clk))
- panic("unable to get timer clock, err=%ld", PTR_ERR(clk));
-
- mips_hpt_frequency = clk_get_rate(clk);
- ls1x_time_init();
-#else
- /* 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;
-#endif /* CONFIG_CEVT_CSRC_LS1X */
-}
diff --git a/kernel/arch/mips/loongson1/ls1b/Makefile b/kernel/arch/mips/loongson1/ls1b/Makefile
deleted file mode 100644
index 891eac482..000000000
--- a/kernel/arch/mips/loongson1/ls1b/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for loongson1B based machines.
-#
-
-obj-y += board.o
diff --git a/kernel/arch/mips/loongson1/ls1b/board.c b/kernel/arch/mips/loongson1/ls1b/board.c
deleted file mode 100644
index 58daeea25..000000000
--- a/kernel/arch/mips/loongson1/ls1b/board.c
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@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 *ls1b_platform_devices[] __initdata = {
- &ls1x_uart_pdev,
- &ls1x_cpufreq_pdev,
- &ls1x_eth0_pdev,
- &ls1x_eth1_pdev,
- &ls1x_ehci_pdev,
- &ls1x_rtc_pdev,
-};
-
-static int __init ls1b_platform_init(void)
-{
- int err;
-
- ls1x_serial_setup(&ls1x_uart_pdev);
-
- err = platform_add_devices(ls1b_platform_devices,
- ARRAY_SIZE(ls1b_platform_devices));
- return err;
-}
-
-arch_initcall(ls1b_platform_init);