VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400   1) /*
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400   2)  * Sonics Silicon Backplane
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400   3)  * Broadcom EXTIF core driver
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400   4)  *
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400   5)  * Copyright 2005, Broadcom Corporation
eb032b9837a95 (Michael Buesch    2011-07-04 20:50:05 +0200   6)  * Copyright 2006, 2007, Michael Buesch <m@bues.ch>
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400   7)  * Copyright 2006, 2007, Felix Fietkau <nbd@openwrt.org>
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400   8)  * Copyright 2007, Aurelien Jarno <aurelien@aurel32.net>
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400   9)  *
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  10)  * Licensed under the GNU/GPL. See COPYING for details.
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  11)  */
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  12) 
b8b6069cf2087 (Michael Buesch    2018-07-31 21:56:38 +0200  13) #include "ssb_private.h"
b8b6069cf2087 (Michael Buesch    2018-07-31 21:56:38 +0200  14) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  15) #include <linux/serial.h>
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  16) #include <linux/serial_core.h>
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  17) #include <linux/serial_reg.h>
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  18) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  19) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  20) static inline u32 extif_read32(struct ssb_extif *extif, u16 offset)
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  21) {
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  22) 	return ssb_read32(extif->dev, offset);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  23) }
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  24) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  25) static inline void extif_write32(struct ssb_extif *extif, u16 offset, u32 value)
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  26) {
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  27) 	ssb_write32(extif->dev, offset, value);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  28) }
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  29) 
c2bcbe65fc88d (Michael Buesch    2008-02-19 14:53:35 +0100  30) static inline u32 extif_write32_masked(struct ssb_extif *extif, u16 offset,
c2bcbe65fc88d (Michael Buesch    2008-02-19 14:53:35 +0100  31) 				       u32 mask, u32 value)
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  32) {
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  33) 	value &= mask;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  34) 	value |= extif_read32(extif, offset) & ~mask;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  35) 	extif_write32(extif, offset, value);
c2bcbe65fc88d (Michael Buesch    2008-02-19 14:53:35 +0100  36) 
c2bcbe65fc88d (Michael Buesch    2008-02-19 14:53:35 +0100  37) 	return value;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  38) }
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  39) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  40) #ifdef CONFIG_SSB_SERIAL
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  41) static bool serial_exists(u8 *regs)
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  42) {
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  43) 	u8 save_mcr, msr = 0;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  44) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  45) 	if (regs) {
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  46) 		save_mcr = regs[UART_MCR];
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  47) 		regs[UART_MCR] = (UART_MCR_LOOP | UART_MCR_OUT2 | UART_MCR_RTS);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  48) 		msr = regs[UART_MSR] & (UART_MSR_DCD | UART_MSR_RI
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  49) 					| UART_MSR_CTS | UART_MSR_DSR);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  50) 		regs[UART_MCR] = save_mcr;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  51) 	}
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  52) 	return (msr == (UART_MSR_DCD | UART_MSR_CTS));
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  53) }
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  54) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  55) int ssb_extif_serial_init(struct ssb_extif *extif, struct ssb_serial_port *ports)
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  56) {
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  57) 	u32 i, nr_ports = 0;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  58) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  59) 	/* Disable GPIO interrupt initially */
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  60) 	extif_write32(extif, SSB_EXTIF_GPIO_INTPOL, 0);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  61) 	extif_write32(extif, SSB_EXTIF_GPIO_INTMASK, 0);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  62) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  63) 	for (i = 0; i < 2; i++) {
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  64) 		void __iomem *uart_regs;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  65) 
4bdc0d676a643 (Christoph Hellwig 2020-01-06 09:43:50 +0100  66) 		uart_regs = ioremap(SSB_EUART, 16);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  67) 		if (uart_regs) {
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  68) 			uart_regs += (i * 8);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  69) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  70) 			if (serial_exists(uart_regs) && ports) {
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  71) 				extif_write32(extif, SSB_EXTIF_GPIO_INTMASK, 2);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  72) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  73) 				nr_ports++;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  74) 				ports[i].regs = uart_regs;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  75) 				ports[i].irq = 2;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  76) 				ports[i].baud_base = 13500000;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  77) 				ports[i].reg_shift = 0;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  78) 			}
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  79) 			iounmap(uart_regs);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  80) 		}
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  81) 	}
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  82) 	return nr_ports;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  83) }
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  84) #endif /* CONFIG_SSB_SERIAL */
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  85) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  86) void ssb_extif_timing_init(struct ssb_extif *extif, unsigned long ns)
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  87) {
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  88) 	u32 tmp;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  89) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  90) 	/* Initialize extif so we can get to the LEDs and external UART */
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  91) 	extif_write32(extif, SSB_EXTIF_PROG_CFG, SSB_EXTCFG_EN);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  92) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  93) 	/* Set timing for the flash */
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  94) 	tmp  = DIV_ROUND_UP(10, ns) << SSB_PROG_WCNT_3_SHIFT;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  95) 	tmp |= DIV_ROUND_UP(40, ns) << SSB_PROG_WCNT_1_SHIFT;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  96) 	tmp |= DIV_ROUND_UP(120, ns);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  97) 	extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  98) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400  99) 	/* Set programmable interface timing for external uart */
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 100) 	tmp  = DIV_ROUND_UP(10, ns) << SSB_PROG_WCNT_3_SHIFT;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 101) 	tmp |= DIV_ROUND_UP(20, ns) << SSB_PROG_WCNT_2_SHIFT;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 102) 	tmp |= DIV_ROUND_UP(100, ns) << SSB_PROG_WCNT_1_SHIFT;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 103) 	tmp |= DIV_ROUND_UP(120, ns);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 104) 	extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 105) }
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 106) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 107) void ssb_extif_get_clockcontrol(struct ssb_extif *extif,
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 108) 				u32 *pll_type, u32 *n, u32 *m)
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 109) {
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 110) 	*pll_type = SSB_PLLTYPE_1;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 111) 	*n = extif_read32(extif, SSB_EXTIF_CLOCK_N);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 112) 	*m = extif_read32(extif, SSB_EXTIF_CLOCK_SB);
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 113) }
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 114) 
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 115) u32 ssb_extif_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt, u32 ticks)
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 116) {
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 117) 	struct ssb_extif *extif = bcm47xx_wdt_get_drvdata(wdt);
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 118) 
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 119) 	return ssb_extif_watchdog_timer_set(extif, ticks);
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 120) }
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 121) 
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 122) u32 ssb_extif_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms)
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 123) {
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 124) 	struct ssb_extif *extif = bcm47xx_wdt_get_drvdata(wdt);
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 125) 	u32 ticks = (SSB_EXTIF_WATCHDOG_CLK / 1000) * ms;
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 126) 
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 127) 	ticks = ssb_extif_watchdog_timer_set(extif, ticks);
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 128) 
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 129) 	return (ticks * 1000) / SSB_EXTIF_WATCHDOG_CLK;
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 130) }
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 131) 
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 132) u32 ssb_extif_watchdog_timer_set(struct ssb_extif *extif, u32 ticks)
42bfad4f71637 (Michael Buesch    2008-02-19 12:41:30 +0100 133) {
7280b51a29f8e (Hauke Mehrtens    2012-12-05 18:46:06 +0100 134) 	if (ticks > SSB_EXTIF_WATCHDOG_MAX_TIMER)
7280b51a29f8e (Hauke Mehrtens    2012-12-05 18:46:06 +0100 135) 		ticks = SSB_EXTIF_WATCHDOG_MAX_TIMER;
42bfad4f71637 (Michael Buesch    2008-02-19 12:41:30 +0100 136) 	extif_write32(extif, SSB_EXTIF_WATCHDOG, ticks);
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 137) 
9f640a6376e54 (Hauke Mehrtens    2012-12-05 18:46:07 +0100 138) 	return ticks;
42bfad4f71637 (Michael Buesch    2008-02-19 12:41:30 +0100 139) }
42bfad4f71637 (Michael Buesch    2008-02-19 12:41:30 +0100 140) 
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 141) void ssb_extif_init(struct ssb_extif *extif)
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 142) {
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 143) 	if (!extif->dev)
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 144) 		return; /* We don't have a Extif core */
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 145) 	spin_lock_init(&extif->gpio_lock);
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 146) }
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 147) 
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 148) u32 ssb_extif_gpio_in(struct ssb_extif *extif, u32 mask)
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 149) {
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 150) 	return extif_read32(extif, SSB_EXTIF_GPIO_IN) & mask;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 151) }
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 152) 
c2bcbe65fc88d (Michael Buesch    2008-02-19 14:53:35 +0100 153) u32 ssb_extif_gpio_out(struct ssb_extif *extif, u32 mask, u32 value)
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 154) {
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 155) 	unsigned long flags;
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 156) 	u32 res = 0;
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 157) 
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 158) 	spin_lock_irqsave(&extif->gpio_lock, flags);
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 159) 	res = extif_write32_masked(extif, SSB_EXTIF_GPIO_OUT(0),
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 160) 				   mask, value);
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 161) 	spin_unlock_irqrestore(&extif->gpio_lock, flags);
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 162) 
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 163) 	return res;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 164) }
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 165) 
c2bcbe65fc88d (Michael Buesch    2008-02-19 14:53:35 +0100 166) u32 ssb_extif_gpio_outen(struct ssb_extif *extif, u32 mask, u32 value)
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 167) {
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 168) 	unsigned long flags;
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 169) 	u32 res = 0;
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 170) 
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 171) 	spin_lock_irqsave(&extif->gpio_lock, flags);
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 172) 	res = extif_write32_masked(extif, SSB_EXTIF_GPIO_OUTEN(0),
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 173) 				   mask, value);
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 174) 	spin_unlock_irqrestore(&extif->gpio_lock, flags);
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 175) 
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 176) 	return res;
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 177) }
c2bcbe65fc88d (Michael Buesch    2008-02-19 14:53:35 +0100 178) 
c2bcbe65fc88d (Michael Buesch    2008-02-19 14:53:35 +0100 179) u32 ssb_extif_gpio_polarity(struct ssb_extif *extif, u32 mask, u32 value)
c2bcbe65fc88d (Michael Buesch    2008-02-19 14:53:35 +0100 180) {
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 181) 	unsigned long flags;
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 182) 	u32 res = 0;
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 183) 
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 184) 	spin_lock_irqsave(&extif->gpio_lock, flags);
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 185) 	res = extif_write32_masked(extif, SSB_EXTIF_GPIO_INTPOL, mask, value);
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 186) 	spin_unlock_irqrestore(&extif->gpio_lock, flags);
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 187) 
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 188) 	return res;
c2bcbe65fc88d (Michael Buesch    2008-02-19 14:53:35 +0100 189) }
61e115a56d1aa (Michael Buesch    2007-09-18 15:12:50 -0400 190) 
c2bcbe65fc88d (Michael Buesch    2008-02-19 14:53:35 +0100 191) u32 ssb_extif_gpio_intmask(struct ssb_extif *extif, u32 mask, u32 value)
c2bcbe65fc88d (Michael Buesch    2008-02-19 14:53:35 +0100 192) {
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 193) 	unsigned long flags;
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 194) 	u32 res = 0;
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 195) 
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 196) 	spin_lock_irqsave(&extif->gpio_lock, flags);
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 197) 	res = extif_write32_masked(extif, SSB_EXTIF_GPIO_INTMASK, mask, value);
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 198) 	spin_unlock_irqrestore(&extif->gpio_lock, flags);
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 199) 
394bc7e38be79 (Hauke Mehrtens    2012-11-20 22:24:32 +0000 200) 	return res;
c2bcbe65fc88d (Michael Buesch    2008-02-19 14:53:35 +0100 201) }