From 9ec88b60cb481a6862dc98a78400a6945d9675ba Mon Sep 17 00:00:00 2001 From: Kelvin Cheung Date: Wed, 6 Apr 2016 20:34:54 +0800 Subject: MIPS: Loongson1B: Some updates/fixes for LS1B - 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 Cc: Michael Turquette Cc: Stephen Boyd Cc: Rafael J. Wysocki Cc: Viresh Kumar Cc: Vinod Koul Cc: Dan Williams Cc: Linus Walleij Cc: Alexandre Courbot Cc: Boris Brezillon Cc: Richard Weinberger Cc: David Woodhouse Cc: Brian Norris 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 --- arch/mips/loongson32/common/platform.c | 105 +++++++++++++++++++++++++++++++-- arch/mips/loongson32/common/reset.c | 13 ++-- arch/mips/loongson32/common/time.c | 27 +++++---- arch/mips/loongson32/ls1b/board.c | 67 +++++++++++++++++++-- 4 files changed, 184 insertions(+), 28 deletions(-) (limited to 'arch/mips/loongson32') diff --git a/arch/mips/loongson32/common/platform.c b/arch/mips/loongson32/common/platform.c index ddf1d4cbf31e..f2c714d8fb60 100644 --- a/arch/mips/loongson32/common/platform.c +++ b/arch/mips/loongson32/common/platform.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2011 Zhang, Keguang + * Copyright (c) 2011-2016 Zhang, Keguang * * 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 #include #include +#include +#include #include #include #include #include -#include -#include #include +#include +#include +#include /* 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); diff --git a/arch/mips/loongson32/common/reset.c b/arch/mips/loongson32/common/reset.c index c41e4ca56ab4..8a1d9cc5a134 100644 --- a/arch/mips/loongson32/common/reset.c +++ b/arch/mips/loongson32/common/reset.c @@ -9,12 +9,13 @@ #include #include +#include #include #include #include -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; diff --git a/arch/mips/loongson32/common/time.c b/arch/mips/loongson32/common/time.c index 0996b025eeef..ff224f0020e5 100644 --- a/arch/mips/loongson32/common/time.c +++ b/arch/mips/loongson32/common/time.c @@ -9,6 +9,7 @@ #include #include +#include #include #include @@ -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)); diff --git a/arch/mips/loongson32/ls1b/board.c b/arch/mips/loongson32/ls1b/board.c index 58daeea25739..38a1d404be1b 100644 --- a/arch/mips/loongson32/ls1b/board.c +++ b/arch/mips/loongson32/ls1b/board.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2011 Zhang, Keguang + * Copyright (c) 2011-2016 Zhang, Keguang * * 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 +#include +#include + +#include +#include +#include #include +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); -- cgit v1.2.3