diff options
Diffstat (limited to 'arch/unicore32/kernel/puv3-core.c')
| -rw-r--r-- | arch/unicore32/kernel/puv3-core.c | 276 |
1 files changed, 0 insertions, 276 deletions
diff --git a/arch/unicore32/kernel/puv3-core.c b/arch/unicore32/kernel/puv3-core.c deleted file mode 100644 index 78f12e627365..000000000000 --- a/arch/unicore32/kernel/puv3-core.c +++ /dev/null @@ -1,276 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * linux/arch/unicore32/kernel/puv3-core.c - * - * Code specific to PKUnity SoC and UniCore ISA - * - * Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn> - * Copyright (C) 2001-2010 Guan Xuetao - */ - -#include <linux/init.h> -#include <linux/device.h> -#include <linux/amba/bus.h> -#include <linux/platform_device.h> -#include <linux/io.h> -#include <linux/cnt32_to_63.h> -#include <linux/usb/musb.h> - -#include <asm/irq.h> -#include <mach/hardware.h> -#include <mach/pm.h> - -/* - * This is the PKUnity sched_clock implementation. This has - * a resolution of 271ns, and a maximum value of 32025597s (370 days). - * - * The return value is guaranteed to be monotonic in that range as - * long as there is always less than 582 seconds between successive - * calls to this function. - * - * ( * 1E9 / CLOCK_TICK_RATE ) -> about 2235/32 - */ -unsigned long long sched_clock(void) -{ - unsigned long long v = cnt32_to_63(readl(OST_OSCR)); - - /* original conservative method, but overflow frequently - * v *= NSEC_PER_SEC >> 12; - * do_div(v, CLOCK_TICK_RATE >> 12); - */ - v = ((v & 0x7fffffffffffffffULL) * 2235) >> 5; - - return v; -} - -static struct resource puv3_usb_resources[] = { - /* order is significant! */ - { - .start = io_v2p(PKUNITY_USB_BASE), - .end = io_v2p(PKUNITY_USB_BASE) + 0x3ff, - .flags = IORESOURCE_MEM, - }, { - .start = IRQ_USB, - .flags = IORESOURCE_IRQ, - }, { - .start = IRQ_USB, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct musb_hdrc_config puv3_usb_config[] = { - { - .num_eps = 16, - .multipoint = 1, -#ifdef CONFIG_USB_INVENTRA_DMA - .dma = 1, - .dma_channels = 8, -#endif - }, -}; - -static struct musb_hdrc_platform_data puv3_usb_plat = { - .mode = MUSB_HOST, - .min_power = 100, - .clock = 0, - .config = puv3_usb_config, -}; - -static struct resource puv3_mmc_resources[] = { - [0] = { - .start = io_v2p(PKUNITY_SDC_BASE), - .end = io_v2p(PKUNITY_SDC_BASE) + 0xfff, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_SDC, - .end = IRQ_SDC, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct resource puv3_unigfx_resources[] = { - [0] = { - .start = io_v2p(PKUNITY_UNIGFX_BASE), - .end = io_v2p(PKUNITY_UNIGFX_BASE) + 0xfff, - .flags = IORESOURCE_MEM, - }, -}; - -static struct resource puv3_rtc_resources[] = { - [0] = { - .start = io_v2p(PKUNITY_RTC_BASE), - .end = io_v2p(PKUNITY_RTC_BASE) + 0xff, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_RTCAlarm, - .end = IRQ_RTCAlarm, - .flags = IORESOURCE_IRQ, - }, - [2] = { - .start = IRQ_RTC, - .end = IRQ_RTC, - .flags = IORESOURCE_IRQ - } -}; - -static struct resource puv3_pwm_resources[] = { - [0] = { - .start = io_v2p(PKUNITY_OST_BASE) + 0x80, - .end = io_v2p(PKUNITY_OST_BASE) + 0xff, - .flags = IORESOURCE_MEM, - }, -}; - -static struct resource puv3_uart0_resources[] = { - [0] = { - .start = io_v2p(PKUNITY_UART0_BASE), - .end = io_v2p(PKUNITY_UART0_BASE) + 0xff, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_UART0, - .end = IRQ_UART0, - .flags = IORESOURCE_IRQ - } -}; - -static struct resource puv3_uart1_resources[] = { - [0] = { - .start = io_v2p(PKUNITY_UART1_BASE), - .end = io_v2p(PKUNITY_UART1_BASE) + 0xff, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_UART1, - .end = IRQ_UART1, - .flags = IORESOURCE_IRQ - } -}; - -static struct resource puv3_umal_resources[] = { - [0] = { - .start = io_v2p(PKUNITY_UMAL_BASE), - .end = io_v2p(PKUNITY_UMAL_BASE) + 0x1fff, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = IRQ_UMAL, - .end = IRQ_UMAL, - .flags = IORESOURCE_IRQ - } -}; - -#ifdef CONFIG_PUV3_PM - -#define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x -#define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x] - -/* - * List of global PXA peripheral registers to preserve. - * More ones like CP and general purpose register values are preserved - * with the stack pointer in sleep.S. - */ -enum { - SLEEP_SAVE_PM_PLLDDRCFG, - SLEEP_SAVE_COUNT -}; - - -static void puv3_cpu_pm_save(unsigned long *sleep_save) -{ -/* SAVE(PM_PLLDDRCFG); */ -} - -static void puv3_cpu_pm_restore(unsigned long *sleep_save) -{ -/* RESTORE(PM_PLLDDRCFG); */ -} - -static int puv3_cpu_pm_prepare(void) -{ - /* set resume return address */ - writel(virt_to_phys(puv3_cpu_resume), PM_DIVCFG); - return 0; -} - -static void puv3_cpu_pm_enter(suspend_state_t state) -{ - /* Clear reset status */ - writel(RESETC_RSSR_HWR | RESETC_RSSR_WDR - | RESETC_RSSR_SMR | RESETC_RSSR_SWR, RESETC_RSSR); - - switch (state) { -/* case PM_SUSPEND_ON: - puv3_cpu_idle(); - break; */ - case PM_SUSPEND_MEM: - puv3_cpu_pm_prepare(); - puv3_cpu_suspend(PM_PMCR_SFB); - break; - } -} - -static int puv3_cpu_pm_valid(suspend_state_t state) -{ - return state == PM_SUSPEND_MEM; -} - -static void puv3_cpu_pm_finish(void) -{ - /* ensure not to come back here if it wasn't intended */ - /* PSPR = 0; */ -} - -static struct puv3_cpu_pm_fns puv3_cpu_pm_fnss = { - .save_count = SLEEP_SAVE_COUNT, - .valid = puv3_cpu_pm_valid, - .save = puv3_cpu_pm_save, - .restore = puv3_cpu_pm_restore, - .enter = puv3_cpu_pm_enter, - .prepare = puv3_cpu_pm_prepare, - .finish = puv3_cpu_pm_finish, -}; - -static void __init puv3_init_pm(void) -{ - puv3_cpu_pm_fns = &puv3_cpu_pm_fnss; -} -#else -static inline void puv3_init_pm(void) {} -#endif - -void puv3_ps2_init(void) -{ - struct clk *bclk32; - - bclk32 = clk_get(NULL, "BUS32_CLK"); - writel(clk_get_rate(bclk32) / 200000, PS2_CNT); /* should > 5us */ -} - -void __init puv3_core_init(void) -{ - puv3_init_pm(); - puv3_ps2_init(); - - platform_device_register_simple("PKUnity-v3-RTC", -1, - puv3_rtc_resources, ARRAY_SIZE(puv3_rtc_resources)); - platform_device_register_simple("PKUnity-v3-UMAL", -1, - puv3_umal_resources, ARRAY_SIZE(puv3_umal_resources)); - platform_device_register_simple("PKUnity-v3-MMC", -1, - puv3_mmc_resources, ARRAY_SIZE(puv3_mmc_resources)); - platform_device_register_simple("PKUnity-v3-UNIGFX", -1, - puv3_unigfx_resources, ARRAY_SIZE(puv3_unigfx_resources)); - platform_device_register_simple("PKUnity-v3-PWM", -1, - puv3_pwm_resources, ARRAY_SIZE(puv3_pwm_resources)); - platform_device_register_simple("PKUnity-v3-UART", 0, - puv3_uart0_resources, ARRAY_SIZE(puv3_uart0_resources)); - platform_device_register_simple("PKUnity-v3-UART", 1, - puv3_uart1_resources, ARRAY_SIZE(puv3_uart1_resources)); - platform_device_register_simple("PKUnity-v3-AC97", -1, NULL, 0); - platform_device_register_resndata(NULL, "musb_hdrc", -1, - puv3_usb_resources, ARRAY_SIZE(puv3_usb_resources), - &puv3_usb_plat, sizeof(puv3_usb_plat)); -} - |