diff options
author | David Lechner <david@lechnology.com> | 2018-01-06 21:10:15 -0600 |
---|---|---|
committer | Sekhar Nori <nsekhar@ti.com> | 2018-02-19 16:25:15 +0530 |
commit | 94f2e94514e5dea6677b4379efd3479105519bdc (patch) | |
tree | 8a349e5a86204d4514507b8238dc4c54283a8c8c /arch/arm/mach-davinci | |
parent | bdec5a6b57896da81bc47262868468717a06bb69 (diff) | |
download | linux-94f2e94514e5dea6677b4379efd3479105519bdc.tar.gz linux-94f2e94514e5dea6677b4379efd3479105519bdc.tar.bz2 linux-94f2e94514e5dea6677b4379efd3479105519bdc.zip |
ARM: davinci: remove watchdog reset
This removes the watchdog reset code. The reset has been moved to
drivers/watchdog/davinci_wdt.c. The watchdog driver registers the reset
with the kernel so defining a reset for each machine is no longer needed.
Signed-off-by: David Lechner <david@lechnology.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Diffstat (limited to 'arch/arm/mach-davinci')
-rw-r--r-- | arch/arm/mach-davinci/board-da830-evm.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-davinci/board-da850-evm.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-davinci/board-dm355-evm.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-davinci/board-dm355-leopard.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-davinci/board-dm365-evm.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-davinci/board-dm644x-evm.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-davinci/board-dm646x-evm.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-davinci/board-mityomapl138.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-davinci/board-neuros-osd2.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-davinci/board-omapl138-hawk.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-davinci/board-sffsdr.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-davinci/clock.h | 3 | ||||
-rw-r--r-- | arch/arm/mach-davinci/da8xx-dt.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-davinci/devices-da8xx.c | 13 | ||||
-rw-r--r-- | arch/arm/mach-davinci/devices.c | 7 | ||||
-rw-r--r-- | arch/arm/mach-davinci/include/mach/common.h | 1 | ||||
-rw-r--r-- | arch/arm/mach-davinci/include/mach/da8xx.h | 1 | ||||
-rw-r--r-- | arch/arm/mach-davinci/time.c | 57 |
18 files changed, 1 insertions, 94 deletions
diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c index f960cbef6538..d3ee02c12014 100644 --- a/arch/arm/mach-davinci/board-da830-evm.c +++ b/arch/arm/mach-davinci/board-da830-evm.c @@ -638,5 +638,4 @@ MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP-L137/AM17x EVM") .init_machine = da830_evm_init, .init_late = davinci_init_late, .dma_zone_size = SZ_128M, - .restart = da8xx_restart, MACHINE_END diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c index 26bdb10a8927..b3a764feae11 100644 --- a/arch/arm/mach-davinci/board-da850-evm.c +++ b/arch/arm/mach-davinci/board-da850-evm.c @@ -1481,6 +1481,5 @@ MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138/AM18x EVM") .init_machine = da850_evm_init, .init_late = davinci_init_late, .dma_zone_size = SZ_128M, - .restart = da8xx_restart, .reserve = da8xx_rproc_reserve_cma, MACHINE_END diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c index e457f299cd44..29dbfc944e02 100644 --- a/arch/arm/mach-davinci/board-dm355-evm.c +++ b/arch/arm/mach-davinci/board-dm355-evm.c @@ -431,5 +431,4 @@ MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM") .init_machine = dm355_evm_init, .init_late = davinci_init_late, .dma_zone_size = SZ_128M, - .restart = davinci_restart, MACHINE_END diff --git a/arch/arm/mach-davinci/board-dm355-leopard.c b/arch/arm/mach-davinci/board-dm355-leopard.c index be997243447b..1e7e9b8f3bae 100644 --- a/arch/arm/mach-davinci/board-dm355-leopard.c +++ b/arch/arm/mach-davinci/board-dm355-leopard.c @@ -275,5 +275,4 @@ MACHINE_START(DM355_LEOPARD, "DaVinci DM355 leopard") .init_machine = dm355_leopard_init, .init_late = davinci_init_late, .dma_zone_size = SZ_128M, - .restart = davinci_restart, MACHINE_END diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c index e75741fb2c1d..17b2c29f4053 100644 --- a/arch/arm/mach-davinci/board-dm365-evm.c +++ b/arch/arm/mach-davinci/board-dm365-evm.c @@ -778,6 +778,5 @@ MACHINE_START(DAVINCI_DM365_EVM, "DaVinci DM365 EVM") .init_machine = dm365_evm_init, .init_late = davinci_init_late, .dma_zone_size = SZ_128M, - .restart = davinci_restart, MACHINE_END diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c index 85e6fb33b1ee..35e1274183e1 100644 --- a/arch/arm/mach-davinci/board-dm644x-evm.c +++ b/arch/arm/mach-davinci/board-dm644x-evm.c @@ -832,5 +832,4 @@ MACHINE_START(DAVINCI_EVM, "DaVinci DM644x EVM") .init_machine = davinci_evm_init, .init_late = davinci_init_late, .dma_zone_size = SZ_128M, - .restart = davinci_restart, MACHINE_END diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c index cb0a41e83582..003bbe5c24fd 100644 --- a/arch/arm/mach-davinci/board-dm646x-evm.c +++ b/arch/arm/mach-davinci/board-dm646x-evm.c @@ -801,7 +801,6 @@ MACHINE_START(DAVINCI_DM6467_EVM, "DaVinci DM646x EVM") .init_machine = evm_init, .init_late = davinci_init_late, .dma_zone_size = SZ_128M, - .restart = davinci_restart, MACHINE_END MACHINE_START(DAVINCI_DM6467TEVM, "DaVinci DM6467T EVM") @@ -812,6 +811,5 @@ MACHINE_START(DAVINCI_DM6467TEVM, "DaVinci DM6467T EVM") .init_machine = evm_init, .init_late = davinci_init_late, .dma_zone_size = SZ_128M, - .restart = davinci_restart, MACHINE_END diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c index 9e7388ba413c..72748e5df43c 100644 --- a/arch/arm/mach-davinci/board-mityomapl138.c +++ b/arch/arm/mach-davinci/board-mityomapl138.c @@ -570,5 +570,4 @@ MACHINE_START(MITYOMAPL138, "MityDSP-L138/MityARM-1808") .init_machine = mityomapl138_init, .init_late = davinci_init_late, .dma_zone_size = SZ_128M, - .restart = da8xx_restart, MACHINE_END diff --git a/arch/arm/mach-davinci/board-neuros-osd2.c b/arch/arm/mach-davinci/board-neuros-osd2.c index 4da210a1a110..51a3ae19d765 100644 --- a/arch/arm/mach-davinci/board-neuros-osd2.c +++ b/arch/arm/mach-davinci/board-neuros-osd2.c @@ -231,5 +231,4 @@ MACHINE_START(NEUROS_OSD2, "Neuros OSD2") .init_machine = davinci_ntosd2_init, .init_late = davinci_init_late, .dma_zone_size = SZ_128M, - .restart = davinci_restart, MACHINE_END diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c index baab7eb61632..ae37bc46bc8c 100644 --- a/arch/arm/mach-davinci/board-omapl138-hawk.c +++ b/arch/arm/mach-davinci/board-omapl138-hawk.c @@ -334,6 +334,5 @@ MACHINE_START(OMAPL138_HAWKBOARD, "AM18x/OMAP-L138 Hawkboard") .init_machine = omapl138_hawk_init, .init_late = davinci_init_late, .dma_zone_size = SZ_128M, - .restart = da8xx_restart, .reserve = da8xx_rproc_reserve_cma, MACHINE_END diff --git a/arch/arm/mach-davinci/board-sffsdr.c b/arch/arm/mach-davinci/board-sffsdr.c index d85accf7f760..1f02d4ec6144 100644 --- a/arch/arm/mach-davinci/board-sffsdr.c +++ b/arch/arm/mach-davinci/board-sffsdr.c @@ -154,5 +154,4 @@ MACHINE_START(SFFSDR, "Lyrtech SFFSDR") .init_machine = davinci_sffsdr_init, .init_late = davinci_init_late, .dma_zone_size = SZ_128M, - .restart = davinci_restart, MACHINE_END diff --git a/arch/arm/mach-davinci/clock.h b/arch/arm/mach-davinci/clock.h index fa2b83752e03..d7894d5aaa25 100644 --- a/arch/arm/mach-davinci/clock.h +++ b/arch/arm/mach-davinci/clock.h @@ -135,9 +135,6 @@ int davinci_clk_reset(struct clk *clk, bool reset); void davinci_clk_enable(struct clk *clk); void davinci_clk_disable(struct clk *clk); -extern struct platform_device davinci_wdt_device; -extern void davinci_watchdog_reset(struct platform_device *); - #endif #endif diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c index f06db6700ab2..779e8ce887c3 100644 --- a/arch/arm/mach-davinci/da8xx-dt.c +++ b/arch/arm/mach-davinci/da8xx-dt.c @@ -100,7 +100,6 @@ DT_MACHINE_START(DA850_DT, "Generic DA850/OMAP-L138/AM18x") .init_machine = da850_init_machine, .dt_compat = da850_boards_compat, .init_late = davinci_init_late, - .restart = da8xx_restart, MACHINE_END #endif diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c index 166bf29b1296..24422ba07cc7 100644 --- a/arch/arm/mach-davinci/devices-da8xx.c +++ b/arch/arm/mach-davinci/devices-da8xx.c @@ -370,19 +370,6 @@ static struct platform_device da8xx_wdt_device = { .resource = da8xx_watchdog_resources, }; -void da8xx_restart(enum reboot_mode mode, const char *cmd) -{ - struct device *dev; - - dev = bus_find_device_by_name(&platform_bus_type, NULL, "davinci-wdt"); - if (!dev) { - pr_err("%s: failed to find watchdog device\n", __func__); - return; - } - - davinci_watchdog_reset(to_platform_device(dev)); -} - int __init da8xx_register_watchdog(void) { return platform_device_register(&da8xx_wdt_device); diff --git a/arch/arm/mach-davinci/devices.c b/arch/arm/mach-davinci/devices.c index 3ae70f2909b0..0edda4093e47 100644 --- a/arch/arm/mach-davinci/devices.c +++ b/arch/arm/mach-davinci/devices.c @@ -282,18 +282,13 @@ static struct resource wdt_resources[] = { }, }; -struct platform_device davinci_wdt_device = { +static struct platform_device davinci_wdt_device = { .name = "davinci-wdt", .id = -1, .num_resources = ARRAY_SIZE(wdt_resources), .resource = wdt_resources, }; -void davinci_restart(enum reboot_mode mode, const char *cmd) -{ - davinci_watchdog_reset(&davinci_wdt_device); -} - int davinci_init_wdt(void) { return platform_device_register(&davinci_wdt_device); diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h index 433a008ff796..19b9346e147e 100644 --- a/arch/arm/mach-davinci/include/mach/common.h +++ b/arch/arm/mach-davinci/include/mach/common.h @@ -81,7 +81,6 @@ extern struct davinci_soc_info davinci_soc_info; extern void davinci_common_init(const struct davinci_soc_info *soc_info); extern void davinci_init_ide(void); -void davinci_restart(enum reboot_mode mode, const char *cmd); void davinci_init_late(void); #ifdef CONFIG_DAVINCI_RESET_CLOCKS diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h index 03f37ef4297f..fe2d77654c06 100644 --- a/arch/arm/mach-davinci/include/mach/da8xx.h +++ b/arch/arm/mach-davinci/include/mach/da8xx.h @@ -119,7 +119,6 @@ int da850_register_vpif_display (struct vpif_display_config *display_config); int da850_register_vpif_capture (struct vpif_capture_config *capture_config); -void da8xx_restart(enum reboot_mode mode, const char *cmd); void da8xx_rproc_reserve_cma(void); int da8xx_register_rproc(void); int da850_register_gpio(void); diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c index 034f865fe78e..1bb991ad9c1e 100644 --- a/arch/arm/mach-davinci/time.c +++ b/arch/arm/mach-davinci/time.c @@ -80,13 +80,6 @@ enum { #define TGCR_UNRESET 0x1 #define TGCR_RESET_MASK 0x3 -#define WDTCR_WDEN_SHIFT 14 -#define WDTCR_WDEN_DISABLE 0x0 -#define WDTCR_WDEN_ENABLE 0x1 -#define WDTCR_WDKEY_SHIFT 16 -#define WDTCR_WDKEY_SEQ0 0xa5c6 -#define WDTCR_WDKEY_SEQ1 0xda7e - struct timer_s { char *name; unsigned int id; @@ -409,53 +402,3 @@ void __init davinci_timer_init(void) for (i=0; i< ARRAY_SIZE(timers); i++) timer32_config(&timers[i]); } - -/* reset board using watchdog timer */ -void davinci_watchdog_reset(struct platform_device *pdev) -{ - u32 tgcr, wdtcr; - void __iomem *base; - struct clk *wd_clk; - - base = ioremap(pdev->resource[0].start, SZ_4K); - if (WARN_ON(!base)) - return; - - wd_clk = clk_get(&pdev->dev, NULL); - if (WARN_ON(IS_ERR(wd_clk))) - return; - clk_prepare_enable(wd_clk); - - /* disable, internal clock source */ - __raw_writel(0, base + TCR); - - /* reset timer, set mode to 64-bit watchdog, and unreset */ - tgcr = 0; - __raw_writel(tgcr, base + TGCR); - tgcr = TGCR_TIMMODE_64BIT_WDOG << TGCR_TIMMODE_SHIFT; - tgcr |= (TGCR_UNRESET << TGCR_TIM12RS_SHIFT) | - (TGCR_UNRESET << TGCR_TIM34RS_SHIFT); - __raw_writel(tgcr, base + TGCR); - - /* clear counter and period regs */ - __raw_writel(0, base + TIM12); - __raw_writel(0, base + TIM34); - __raw_writel(0, base + PRD12); - __raw_writel(0, base + PRD34); - - /* put watchdog in pre-active state */ - wdtcr = __raw_readl(base + WDTCR); - wdtcr = (WDTCR_WDKEY_SEQ0 << WDTCR_WDKEY_SHIFT) | - (WDTCR_WDEN_ENABLE << WDTCR_WDEN_SHIFT); - __raw_writel(wdtcr, base + WDTCR); - - /* put watchdog in active state */ - wdtcr = (WDTCR_WDKEY_SEQ1 << WDTCR_WDKEY_SHIFT) | - (WDTCR_WDEN_ENABLE << WDTCR_WDEN_SHIFT); - __raw_writel(wdtcr, base + WDTCR); - - /* write an invalid value to the WDKEY field to trigger - * a watchdog reset */ - wdtcr = 0x00004000; - __raw_writel(wdtcr, base + WDTCR); -} |