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MIPS: Loongson1B: Some updates/fixes for LS1B

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- Add DMA device
- Add NAND device
- Add GPIO device
- Add LED device
- Update the defconfig and rename it to loongson1b_defconfig
- Fix ioremap size
- Other minor fixes

Signed-off-by: Kelvin Cheung <keguang.zhang@gmail.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-clk@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: dmaengine@vger.kernel.org
Cc: linux-gpio@vger.kernel.org
Cc: linux-mtd@lists.infradead.org
Patchwork: https://patchwork.linux-mips.org/patch/13033/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Kelvin Cheung 2016-04-06 20:34:54 +08:00 committed by Ralf Baechle
parent 0d61ed17dd
commit 9ec88b60cb
15 changed files with 340 additions and 104 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/mips/Kconfig
View File

@ -1387,6 +1387,8 @@ config CPU_LOONGSON1B
bool "Loongson 1B"
depends on SYS_HAS_CPU_LOONGSON1B
select CPU_LOONGSON1
select ARCH_WANT_OPTIONAL_GPIOLIB
select LEDS_GPIO_REGISTER
help
The Loongson 1B is a 32-bit SoC, which implements the MIPS32
release 2 instruction set.

35
arch/mips/configs/ls1b_defconfig → arch/mips/configs/loongson1b_defconfig
View File

@ -1,19 +1,17 @@
CONFIG_MACH_LOONGSON32=y
CONFIG_PREEMPT=y
# CONFIG_SECCOMP is not set
CONFIG_EXPERIMENTAL=y
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_KERNEL_XZ=y
CONFIG_SYSVIPC=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=16
CONFIG_NAMESPACES=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
# CONFIG_COMPAT_BRK is not set
@ -41,6 +39,12 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
CONFIG_MTD=y
CONFIG_MTD_CMDLINE_PARTS=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_LOONGSON1=y
CONFIG_MTD_UBI=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_SCSI=m
# CONFIG_SCSI_PROC_FS is not set
@ -48,7 +52,6 @@ CONFIG_BLK_DEV_SD=m
# CONFIG_SCSI_LOWLEVEL is not set
CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_NET_VENDOR_CHELSIO is not set
# CONFIG_NET_VENDOR_INTEL is not set
# CONFIG_NET_VENDOR_MARVELL is not set
# CONFIG_NET_VENDOR_MICREL is not set
@ -56,7 +59,6 @@ CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_SEEQ is not set
# CONFIG_NET_VENDOR_SMSC is not set
CONFIG_STMMAC_ETH=y
CONFIG_STMMAC_DA=y
# CONFIG_NET_VENDOR_WIZNET is not set
# CONFIG_WLAN is not set
CONFIG_INPUT_EVDEV=y
@ -69,18 +71,25 @@ CONFIG_LEGACY_PTY_COUNT=8
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_HW_RANDOM is not set
CONFIG_GPIOLIB=y
CONFIG_GPIO_LOONGSON1=y
# CONFIG_HWMON is not set
# CONFIG_VGA_CONSOLE is not set
CONFIG_USB_HID=m
CONFIG_HID_GENERIC=m
CONFIG_USB_HID=m
CONFIG_USB=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_HCD_PLATFORM=y
# CONFIG_USB_EHCI_TT_NEWSCHED is not set
CONFIG_USB_EHCI_HCD_PLATFORM=y
CONFIG_USB_STORAGE=m
CONFIG_USB_SERIAL=m
CONFIG_USB_SERIAL_PL2303=m
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_DRV_LOONGSON1=y
# CONFIG_IOMMU_SUPPORT is not set
@ -96,15 +105,21 @@ CONFIG_VFAT_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
# CONFIG_MISC_FILESYSTEMS is not set
CONFIG_UBIFS_FS=y
CONFIG_UBIFS_FS_ADVANCED_COMPR=y
CONFIG_UBIFS_ATIME_SUPPORT=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_ISO8859_1=m
CONFIG_DYNAMIC_DEBUG=y
# CONFIG_ENABLE_WARN_DEPRECATED is not set
# CONFIG_ENABLE_MUST_CHECK is not set
CONFIG_DEBUG_FS=y
CONFIG_MAGIC_SYSRQ=y
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_PREEMPT is not set
# CONFIG_FTRACE is not set
# CONFIG_EARLY_PRINTK is not set
# CONFIG_CRYPTO_ECHAINIV is not set
# CONFIG_CRYPTO_HW is not set

1
arch/mips/include/asm/mach-loongson32/cpufreq.h
View File

@ -9,7 +9,6 @@
* option) any later version.
*/
#ifndef __ASM_MACH_LOONGSON32_CPUFREQ_H
#define __ASM_MACH_LOONGSON32_CPUFREQ_H

25
arch/mips/include/asm/mach-loongson32/dma.h Normal file
View File

@ -0,0 +1,25 @@
/*
* Copyright (c) 2015 Zhang, Keguang <keguang.zhang@gmail.com>
*
* Loongson 1 NAND platform support.
*
* 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.
*/
#ifndef __ASM_MACH_LOONGSON32_DMA_H
#define __ASM_MACH_LOONGSON32_DMA_H
#define LS1X_DMA_CHANNEL0 0
#define LS1X_DMA_CHANNEL1 1
#define LS1X_DMA_CHANNEL2 2
struct plat_ls1x_dma {
int nr_channels;
};
extern struct plat_ls1x_dma ls1b_dma_pdata;
#endif /* __ASM_MACH_LOONGSON32_DMA_H */

1
arch/mips/include/asm/mach-loongson32/irq.h
View File

@ -9,7 +9,6 @@
* option) any later version.
*/
#ifndef __ASM_MACH_LOONGSON32_IRQ_H
#define __ASM_MACH_LOONGSON32_IRQ_H

4
arch/mips/include/asm/mach-loongson32/loongson1.h
View File

@ -9,7 +9,6 @@
* option) any later version.
*/
#ifndef __ASM_MACH_LOONGSON32_LOONGSON1_H
#define __ASM_MACH_LOONGSON32_LOONGSON1_H
@ -18,6 +17,9 @@
/* 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_EHCI_BASE 0x1fe00000
#define LS1X_OHCI_BASE 0x1fe08000
#define LS1X_GMAC0_BASE 0x1fe10000

30
arch/mips/include/asm/mach-loongson32/nand.h Normal file
View File

@ -0,0 +1,30 @@
/*
* Copyright (c) 2015 Zhang, Keguang <keguang.zhang@gmail.com>
*
* Loongson 1 NAND platform support.
*
* 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.
*/
#ifndef __ASM_MACH_LOONGSON32_NAND_H
#define __ASM_MACH_LOONGSON32_NAND_H
#include <linux/dmaengine.h>
#include <linux/mtd/partitions.h>
struct plat_ls1x_nand {
struct mtd_partition *parts;
unsigned int nr_parts;
int hold_cycle;
int wait_cycle;
};
extern struct plat_ls1x_nand ls1b_nand_pdata;
bool ls1x_dma_filter_fn(struct dma_chan *chan, void *param);
#endif /* __ASM_MACH_LOONGSON32_NAND_H */

14
arch/mips/include/asm/mach-loongson32/platform.h
View File

@ -7,20 +7,28 @@
* option) any later version.
*/
#ifndef __ASM_MACH_LOONGSON32_PLATFORM_H
#define __ASM_MACH_LOONGSON32_PLATFORM_H
#include <linux/platform_device.h>
#include <dma.h>
#include <nand.h>
extern struct platform_device ls1x_uart_pdev;
extern struct platform_device ls1x_cpufreq_pdev;
extern struct platform_device ls1x_dma_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_nand_pdev;
extern struct platform_device ls1x_rtc_pdev;
extern void __init ls1x_clk_init(void);
extern void __init ls1x_serial_setup(struct platform_device *pdev);
void __init ls1x_clk_init(void);
void __init ls1x_dma_set_platdata(struct plat_ls1x_dma *pdata);
void __init ls1x_nand_set_platdata(struct plat_ls1x_nand *pdata);
void __init ls1x_serial_set_uartclk(struct platform_device *pdev);
#endif /* __ASM_MACH_LOONGSON32_PLATFORM_H */

24
arch/mips/include/asm/mach-loongson32/regs-clk.h
View File

@ -19,18 +19,18 @@
#define LS1X_CLK_PLL_DIV LS1X_CLK_REG(0x4)
/* Clock PLL Divisor Register Bits */
#define DIV_DC_EN (0x1 << 31)
#define DIV_DC_RST (0x1 << 30)
#define DIV_CPU_EN (0x1 << 25)
#define DIV_CPU_RST (0x1 << 24)
#define DIV_DDR_EN (0x1 << 19)
#define DIV_DDR_RST (0x1 << 18)
#define RST_DC_EN (0x1 << 5)
#define RST_DC (0x1 << 4)
#define RST_DDR_EN (0x1 << 3)
#define RST_DDR (0x1 << 2)
#define RST_CPU_EN (0x1 << 1)
#define RST_CPU 0x1
#define DIV_DC_EN BIT(31)
#define DIV_DC_RST BIT(30)
#define DIV_CPU_EN BIT(25)
#define DIV_CPU_RST BIT(24)
#define DIV_DDR_EN BIT(19)
#define DIV_DDR_RST BIT(18)
#define RST_DC_EN BIT(5)
#define RST_DC BIT(4)
#define RST_DDR_EN BIT(3)
#define RST_DDR BIT(2)
#define RST_CPU_EN BIT(1)
#define RST_CPU BIT(0)
#define DIV_DC_SHIFT 26
#define DIV_CPU_SHIFT 20

84
arch/mips/include/asm/mach-loongson32/regs-mux.h
View File

@ -19,49 +19,49 @@
#define LS1X_MUX_CTRL1 LS1X_MUX_REG(0x4)
/* MUX CTRL0 Register Bits */
#define UART0_USE_PWM23 (0x1 << 28)
#define UART0_USE_PWM01 (0x1 << 27)
#define UART1_USE_LCD0_5_6_11 (0x1 << 26)
#define I2C2_USE_CAN1 (0x1 << 25)
#define I2C1_USE_CAN0 (0x1 << 24)
#define NAND3_USE_UART5 (0x1 << 23)
#define NAND3_USE_UART4 (0x1 << 22)
#define NAND3_USE_UART1_DAT (0x1 << 21)
#define NAND3_USE_UART1_CTS (0x1 << 20)
#define NAND3_USE_PWM23 (0x1 << 19)
#define NAND3_USE_PWM01 (0x1 << 18)
#define NAND2_USE_UART5 (0x1 << 17)
#define NAND2_USE_UART4 (0x1 << 16)
#define NAND2_USE_UART1_DAT (0x1 << 15)
#define NAND2_USE_UART1_CTS (0x1 << 14)
#define NAND2_USE_PWM23 (0x1 << 13)
#define NAND2_USE_PWM01 (0x1 << 12)
#define NAND1_USE_UART5 (0x1 << 11)
#define NAND1_USE_UART4 (0x1 << 10)
#define NAND1_USE_UART1_DAT (0x1 << 9)
#define NAND1_USE_UART1_CTS (0x1 << 8)
#define NAND1_USE_PWM23 (0x1 << 7)
#define NAND1_USE_PWM01 (0x1 << 6)
#define GMAC1_USE_UART1 (0x1 << 4)
#define GMAC1_USE_UART0 (0x1 << 3)
#define LCD_USE_UART0_DAT (0x1 << 2)
#define LCD_USE_UART15 (0x1 << 1)
#define LCD_USE_UART0 0x1
#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 (0x1 << 31)
#define SPI1_CS_USE_PWM01 (0x1 << 24)
#define SPI1_USE_CAN (0x1 << 23)
#define DISABLE_DDR_CONFSPACE (0x1 << 20)
#define DDR32TO16EN (0x1 << 16)
#define GMAC1_SHUT (0x1 << 13)
#define GMAC0_SHUT (0x1 << 12)
#define USB_SHUT (0x1 << 11)
#define UART1_3_USE_CAN1 (0x1 << 5)
#define UART1_2_USE_CAN0 (0x1 << 4)
#define GMAC1_USE_TXCLK (0x1 << 3)
#define GMAC0_USE_TXCLK (0x1 << 2)
#define GMAC1_USE_PWM23 (0x1 << 1)
#define GMAC0_USE_PWM01 0x1
#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)
#endif /* __ASM_MACH_LOONGSON32_REGS_MUX_H */

12
arch/mips/include/asm/mach-loongson32/regs-pwm.h
View File

@ -19,11 +19,11 @@
#define PWM_CTRL 0xc
/* PWM Control Register Bits */
#define CNT_RST (0x1 << 7)
#define INT_SR (0x1 << 6)
#define INT_EN (0x1 << 5)
#define PWM_SINGLE (0x1 << 4)
#define PWM_OE (0x1 << 3)
#define CNT_EN 0x1
#define CNT_RST BIT(7)
#define INT_SR BIT(6)
#define INT_EN BIT(5)
#define PWM_SINGLE BIT(4)
#define PWM_OE BIT(3)
#define CNT_EN BIT(0)
#endif /* __ASM_MACH_LOONGSON32_REGS_PWM_H */

105
arch/mips/loongson32/common/platform.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
* Copyright (c) 2011-2016 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
@ -10,14 +10,17 @@
#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 <asm-generic/sizes.h>
#include <cpufreq.h>
#include <loongson1.h>
#include <cpufreq.h>
#include <dma.h>
#include <nand.h>
/* 8250/16550 compatible UART */
#define LS1X_UART(_id) \
@ -45,7 +48,7 @@ struct platform_device ls1x_uart_pdev = {
},
};
void __init ls1x_serial_setup(struct platform_device *pdev)
void __init ls1x_serial_set_uartclk(struct platform_device *pdev)
{
struct clk *clk;
struct plat_serial8250_port *p;
@ -77,6 +80,42 @@ struct platform_device ls1x_cpufreq_pdev = {
},
};
/* DMA */
static struct resource ls1x_dma_resources[] = {
[0] = {
.start = LS1X_DMAC_BASE,
.end = LS1X_DMAC_BASE + SZ_4 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = LS1X_DMA0_IRQ,
.end = LS1X_DMA0_IRQ,
.flags = IORESOURCE_IRQ,
},
[2] = {
.start = LS1X_DMA1_IRQ,
.end = LS1X_DMA1_IRQ,
.flags = IORESOURCE_IRQ,
},
[3] = {
.start = LS1X_DMA2_IRQ,
.end = LS1X_DMA2_IRQ,
.flags = IORESOURCE_IRQ,
},
};
struct platform_device ls1x_dma_pdev = {
.name = "ls1x-dma",
.id = -1,
.num_resources = ARRAY_SIZE(ls1x_dma_resources),
.resource = ls1x_dma_resources,
};
void __init ls1x_dma_set_platdata(struct plat_ls1x_dma *pdata)
{
ls1x_dma_pdev.dev.platform_data = pdata;
}
/* Synopsys Ethernet GMAC */
static struct stmmac_mdio_bus_data ls1x_mdio_bus_data = {
.phy_mask = 0,
@ -198,6 +237,64 @@ struct platform_device ls1x_eth1_pdev = {
},
};
/* 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,
};
/* NAND Flash */
static struct resource ls1x_nand_resources[] = {
[0] = {
.start = LS1X_NAND_BASE,
.end = LS1X_NAND_BASE + SZ_32 - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
/* DMA channel 0 is dedicated to NAND */
.start = LS1X_DMA_CHANNEL0,
.end = LS1X_DMA_CHANNEL0,
.flags = IORESOURCE_DMA,
},
};
struct platform_device ls1x_nand_pdev = {
.name = "ls1x-nand",
.id = -1,
.num_resources = ARRAY_SIZE(ls1x_nand_resources),
.resource = ls1x_nand_resources,
};
void __init ls1x_nand_set_platdata(struct plat_ls1x_nand *pdata)
{
ls1x_nand_pdev.dev.platform_data = pdata;
}
/* USB EHCI */
static u64 ls1x_ehci_dmamask = DMA_BIT_MASK(32);

13
arch/mips/loongson32/common/reset.c
View File

@ -9,12 +9,13 @@
#include <linux/io.h>
#include <linux/pm.h>
#include <linux/sizes.h>
#include <asm/idle.h>
#include <asm/reboot.h>
#include <loongson1.h>
static void __iomem *wdt_base;
static void __iomem *wdt_reg_base;
static void ls1x_halt(void)
{
@ -26,9 +27,9 @@ static void ls1x_halt(void)
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);
__raw_writel(0x1, wdt_reg_base + WDT_EN);
__raw_writel(0x1, wdt_reg_base + WDT_TIMER);
__raw_writel(0x1, wdt_reg_base + WDT_SET);
ls1x_halt();
}
@ -40,8 +41,8 @@ static void ls1x_power_off(void)
static int __init ls1x_reboot_setup(void)
{
wdt_base = ioremap_nocache(LS1X_WDT_BASE, 0x0f);
if (!wdt_base)
wdt_reg_base = ioremap_nocache(LS1X_WDT_BASE, (SZ_4 + SZ_8));
if (!wdt_reg_base)
panic("Failed to remap watchdog registers");
_machine_restart = ls1x_restart;

27
arch/mips/loongson32/common/time.c
View File

@ -9,6 +9,7 @@
#include <linux/clk.h>
#include <linux/interrupt.h>
#include <linux/sizes.h>
#include <asm/time.h>
#include <loongson1.h>
@ -35,25 +36,25 @@
DEFINE_RAW_SPINLOCK(ls1x_timer_lock);
static void __iomem *timer_base;
static void __iomem *timer_reg_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);
__raw_writel(period, timer_reg_base + PWM_HRC);
__raw_writel(period, timer_reg_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);
__raw_writel(0x0, timer_reg_base + PWM_CNT);
__raw_writel(INT_EN | CNT_EN, timer_reg_base + PWM_CTRL);
}
void __init ls1x_pwmtimer_init(void)
{
timer_base = ioremap(LS1X_TIMER_BASE, 0xf);
if (!timer_base)
timer_reg_base = ioremap_nocache(LS1X_TIMER_BASE, SZ_16);
if (!timer_reg_base)
panic("Failed to remap timer registers");
ls1x_jiffies_per_tick = DIV_ROUND_CLOSEST(mips_hpt_frequency, HZ);
@ -86,7 +87,7 @@ static cycle_t ls1x_clocksource_read(struct clocksource *cs)
*/
jifs = jiffies;
/* read the count */
count = __raw_readl(timer_base + PWM_CNT);
count = __raw_readl(timer_reg_base + PWM_CNT);
/*
* It's possible for count to appear to go the wrong way for this
@ -131,7 +132,7 @@ static int ls1x_clockevent_set_state_periodic(struct clock_event_device *cd)
raw_spin_lock(&ls1x_timer_lock);
ls1x_pwmtimer_set_period(ls1x_jiffies_per_tick);
ls1x_pwmtimer_restart();
__raw_writel(INT_EN | CNT_EN, timer_base + PWM_CTRL);
__raw_writel(INT_EN | CNT_EN, timer_reg_base + PWM_CTRL);
raw_spin_unlock(&ls1x_timer_lock);
return 0;
@ -140,7 +141,7 @@ static int ls1x_clockevent_set_state_periodic(struct clock_event_device *cd)
static int ls1x_clockevent_tick_resume(struct clock_event_device *cd)
{
raw_spin_lock(&ls1x_timer_lock);
__raw_writel(INT_EN | CNT_EN, timer_base + PWM_CTRL);
__raw_writel(INT_EN | CNT_EN, timer_reg_base + PWM_CTRL);
raw_spin_unlock(&ls1x_timer_lock);
return 0;
@ -149,8 +150,8 @@ static int ls1x_clockevent_tick_resume(struct clock_event_device *cd)
static int ls1x_clockevent_set_state_shutdown(struct clock_event_device *cd)
{
raw_spin_lock(&ls1x_timer_lock);
__raw_writel(__raw_readl(timer_base + PWM_CTRL) & ~CNT_EN,
timer_base + PWM_CTRL);
__raw_writel(__raw_readl(timer_reg_base + PWM_CTRL) & ~CNT_EN,
timer_reg_base + PWM_CTRL);
raw_spin_unlock(&ls1x_timer_lock);
return 0;
@ -220,7 +221,7 @@ void __init plat_time_init(void)
#ifdef CONFIG_CEVT_CSRC_LS1X
/* setup LS1X PWM timer */
clk = clk_get(NULL, "ls1x_pwmtimer");
clk = clk_get(NULL, "ls1x-pwmtimer");
if (IS_ERR(clk))
panic("unable to get timer clock, err=%ld", PTR_ERR(clk));

67
arch/mips/loongson32/ls1b/board.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
* Copyright (c) 2011-2016 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
@ -7,26 +7,83 @@
* option) any later version.
*/
#include <linux/leds.h>
#include <linux/mtd/partitions.h>
#include <linux/sizes.h>
#include <loongson1.h>
#include <dma.h>
#include <nand.h>
#include <platform.h>
struct plat_ls1x_dma ls1x_dma_pdata = {
.nr_channels = 3,
};
static struct mtd_partition ls1x_nand_parts[] = {
{
.name = "kernel",
.offset = 0,
.size = SZ_16M,
},
{
.name = "rootfs",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
},
};
struct plat_ls1x_nand ls1x_nand_pdata = {
.parts = ls1x_nand_parts,
.nr_parts = ARRAY_SIZE(ls1x_nand_parts),
.hold_cycle = 0x2,
.wait_cycle = 0xc,
};
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_cpufreq_pdev,
&ls1x_dma_pdev,
&ls1x_eth0_pdev,
&ls1x_eth1_pdev,
&ls1x_ehci_pdev,
&ls1x_gpio0_pdev,
&ls1x_gpio1_pdev,
&ls1x_nand_pdev,
&ls1x_rtc_pdev,
};
static int __init ls1b_platform_init(void)
{
int err;
ls1x_serial_set_uartclk(&ls1x_uart_pdev);
ls1x_dma_set_platdata(&ls1x_dma_pdata);
ls1x_nand_set_platdata(&ls1x_nand_pdata);
ls1x_serial_setup(&ls1x_uart_pdev);
gpio_led_register_device(-1, &ls1x_led_pdata);
err = platform_add_devices(ls1b_platform_devices,
return platform_add_devices(ls1b_platform_devices,
ARRAY_SIZE(ls1b_platform_devices));
return err;
}
arch_initcall(ls1b_platform_init);