c1d1c5d421
This patch add support for the bcma bus. Broadcom uses only Mips 74K CPUs on the new SoC and on the old ons using ssb bus there are no Mips 74K CPUs. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
144 lines
3.4 KiB
C
144 lines
3.4 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
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*/
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#ifndef __BCM47XX_GPIO_H
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#define __BCM47XX_GPIO_H
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#include <linux/ssb/ssb_embedded.h>
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#include <linux/bcma/bcma.h>
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#include <asm/mach-bcm47xx/bcm47xx.h>
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#define BCM47XX_EXTIF_GPIO_LINES 5
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#define BCM47XX_CHIPCO_GPIO_LINES 16
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extern int gpio_request(unsigned gpio, const char *label);
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extern void gpio_free(unsigned gpio);
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extern int gpio_to_irq(unsigned gpio);
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static inline int gpio_get_value(unsigned gpio)
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{
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switch (bcm47xx_bus_type) {
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#ifdef CONFIG_BCM47XX_SSB
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case BCM47XX_BUS_TYPE_SSB:
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return ssb_gpio_in(&bcm47xx_bus.ssb, 1 << gpio);
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#endif
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#ifdef CONFIG_BCM47XX_BCMA
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case BCM47XX_BUS_TYPE_BCMA:
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return bcma_chipco_gpio_in(&bcm47xx_bus.bcma.bus.drv_cc,
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1 << gpio);
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#endif
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}
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return -EINVAL;
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}
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static inline void gpio_set_value(unsigned gpio, int value)
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{
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switch (bcm47xx_bus_type) {
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#ifdef CONFIG_BCM47XX_SSB
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case BCM47XX_BUS_TYPE_SSB:
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ssb_gpio_out(&bcm47xx_bus.ssb, 1 << gpio,
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value ? 1 << gpio : 0);
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return;
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#endif
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#ifdef CONFIG_BCM47XX_BCMA
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case BCM47XX_BUS_TYPE_BCMA:
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bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
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value ? 1 << gpio : 0);
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return;
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#endif
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}
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}
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static inline int gpio_direction_input(unsigned gpio)
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{
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switch (bcm47xx_bus_type) {
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#ifdef CONFIG_BCM47XX_SSB
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case BCM47XX_BUS_TYPE_SSB:
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ssb_gpio_outen(&bcm47xx_bus.ssb, 1 << gpio, 0);
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return 0;
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#endif
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#ifdef CONFIG_BCM47XX_BCMA
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case BCM47XX_BUS_TYPE_BCMA:
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bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
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0);
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return 0;
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#endif
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}
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return -EINVAL;
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}
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static inline int gpio_direction_output(unsigned gpio, int value)
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{
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switch (bcm47xx_bus_type) {
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#ifdef CONFIG_BCM47XX_SSB
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case BCM47XX_BUS_TYPE_SSB:
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/* first set the gpio out value */
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ssb_gpio_out(&bcm47xx_bus.ssb, 1 << gpio,
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value ? 1 << gpio : 0);
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/* then set the gpio mode */
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ssb_gpio_outen(&bcm47xx_bus.ssb, 1 << gpio, 1 << gpio);
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return 0;
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#endif
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#ifdef CONFIG_BCM47XX_BCMA
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case BCM47XX_BUS_TYPE_BCMA:
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/* first set the gpio out value */
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bcma_chipco_gpio_out(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
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value ? 1 << gpio : 0);
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/* then set the gpio mode */
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bcma_chipco_gpio_outen(&bcm47xx_bus.bcma.bus.drv_cc, 1 << gpio,
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1 << gpio);
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return 0;
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#endif
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}
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return -EINVAL;
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}
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static inline int gpio_intmask(unsigned gpio, int value)
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{
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switch (bcm47xx_bus_type) {
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#ifdef CONFIG_BCM47XX_SSB
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case BCM47XX_BUS_TYPE_SSB:
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ssb_gpio_intmask(&bcm47xx_bus.ssb, 1 << gpio,
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value ? 1 << gpio : 0);
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return 0;
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#endif
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#ifdef CONFIG_BCM47XX_BCMA
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case BCM47XX_BUS_TYPE_BCMA:
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bcma_chipco_gpio_intmask(&bcm47xx_bus.bcma.bus.drv_cc,
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1 << gpio, value ? 1 << gpio : 0);
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return 0;
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#endif
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}
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return -EINVAL;
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}
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static inline int gpio_polarity(unsigned gpio, int value)
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{
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switch (bcm47xx_bus_type) {
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#ifdef CONFIG_BCM47XX_SSB
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case BCM47XX_BUS_TYPE_SSB:
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ssb_gpio_polarity(&bcm47xx_bus.ssb, 1 << gpio,
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value ? 1 << gpio : 0);
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return 0;
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#endif
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#ifdef CONFIG_BCM47XX_BCMA
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case BCM47XX_BUS_TYPE_BCMA:
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bcma_chipco_gpio_polarity(&bcm47xx_bus.bcma.bus.drv_cc,
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1 << gpio, value ? 1 << gpio : 0);
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return 0;
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#endif
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}
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return -EINVAL;
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}
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/* cansleep wrappers */
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#include <asm-generic/gpio.h>
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#endif /* __BCM47XX_GPIO_H */
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