From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/drivers/pcmcia/sa1100_h3600.c | 164 +++++++++++++++++++++++++++++++++++ 1 file changed, 164 insertions(+) create mode 100644 kernel/drivers/pcmcia/sa1100_h3600.c (limited to 'kernel/drivers/pcmcia/sa1100_h3600.c') diff --git a/kernel/drivers/pcmcia/sa1100_h3600.c b/kernel/drivers/pcmcia/sa1100_h3600.c new file mode 100644 index 000000000..431d8b07c --- /dev/null +++ b/kernel/drivers/pcmcia/sa1100_h3600.c @@ -0,0 +1,164 @@ +/* + * drivers/pcmcia/sa1100_h3600.c + * + * PCMCIA implementation routines for H3600 + * + */ +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "sa1100_generic.h" + +static int h3600_pcmcia_hw_init(struct soc_pcmcia_socket *skt) +{ + int err; + + switch (skt->nr) { + case 0: + skt->stat[SOC_STAT_CD].gpio = H3XXX_GPIO_PCMCIA_CD0; + skt->stat[SOC_STAT_CD].name = "PCMCIA CD0"; + skt->stat[SOC_STAT_RDY].gpio = H3XXX_GPIO_PCMCIA_IRQ0; + skt->stat[SOC_STAT_RDY].name = "PCMCIA IRQ0"; + + err = gpio_request(H3XXX_EGPIO_OPT_NVRAM_ON, "OPT NVRAM ON"); + if (err) + goto err01; + err = gpio_direction_output(H3XXX_EGPIO_OPT_NVRAM_ON, 0); + if (err) + goto err03; + err = gpio_request(H3XXX_EGPIO_OPT_ON, "OPT ON"); + if (err) + goto err03; + err = gpio_direction_output(H3XXX_EGPIO_OPT_ON, 0); + if (err) + goto err04; + err = gpio_request(H3XXX_EGPIO_OPT_RESET, "OPT RESET"); + if (err) + goto err04; + err = gpio_direction_output(H3XXX_EGPIO_OPT_RESET, 0); + if (err) + goto err05; + err = gpio_request(H3XXX_EGPIO_CARD_RESET, "PCMCIA CARD RESET"); + if (err) + goto err05; + err = gpio_direction_output(H3XXX_EGPIO_CARD_RESET, 0); + if (err) + goto err06; + break; + case 1: + skt->stat[SOC_STAT_CD].gpio = H3XXX_GPIO_PCMCIA_CD1; + skt->stat[SOC_STAT_CD].name = "PCMCIA CD1"; + skt->stat[SOC_STAT_RDY].gpio = H3XXX_GPIO_PCMCIA_IRQ1; + skt->stat[SOC_STAT_RDY].name = "PCMCIA IRQ1"; + break; + } + return 0; + +err06: gpio_free(H3XXX_EGPIO_CARD_RESET); +err05: gpio_free(H3XXX_EGPIO_OPT_RESET); +err04: gpio_free(H3XXX_EGPIO_OPT_ON); +err03: gpio_free(H3XXX_EGPIO_OPT_NVRAM_ON); +err01: gpio_free(H3XXX_GPIO_PCMCIA_IRQ0); + return err; +} + +static void h3600_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) +{ + switch (skt->nr) { + case 0: + /* Disable CF bus: */ + gpio_set_value(H3XXX_EGPIO_OPT_NVRAM_ON, 0); + gpio_set_value(H3XXX_EGPIO_OPT_ON, 0); + gpio_set_value(H3XXX_EGPIO_OPT_RESET, 1); + + gpio_free(H3XXX_EGPIO_CARD_RESET); + gpio_free(H3XXX_EGPIO_OPT_RESET); + gpio_free(H3XXX_EGPIO_OPT_ON); + gpio_free(H3XXX_EGPIO_OPT_NVRAM_ON); + break; + case 1: + break; + } +} + +static void +h3600_pcmcia_socket_state(struct soc_pcmcia_socket *skt, struct pcmcia_state *state) +{ + state->bvd1 = 0; + state->bvd2 = 0; + state->vs_3v = 0; + state->vs_Xv = 0; +} + +static int +h3600_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) +{ + if (state->Vcc != 0 && state->Vcc != 33 && state->Vcc != 50) { + printk(KERN_ERR "h3600_pcmcia: unrecognized Vcc %u.%uV\n", + state->Vcc / 10, state->Vcc % 10); + return -1; + } + + gpio_set_value(H3XXX_EGPIO_CARD_RESET, !!(state->flags & SS_RESET)); + + /* Silently ignore Vpp, output enable, speaker enable. */ + + return 0; +} + +static void h3600_pcmcia_socket_init(struct soc_pcmcia_socket *skt) +{ + /* Enable CF bus: */ + gpio_set_value(H3XXX_EGPIO_OPT_NVRAM_ON, 1); + gpio_set_value(H3XXX_EGPIO_OPT_ON, 1); + gpio_set_value(H3XXX_EGPIO_OPT_RESET, 0); + + msleep(10); +} + +static void h3600_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) +{ + /* + * FIXME: This doesn't fit well. We don't have the mechanism in + * the generic PCMCIA layer to deal with the idea of two sockets + * on one bus. We rely on the cs.c behaviour shutting down + * socket 0 then socket 1. + */ + if (skt->nr == 1) { + gpio_set_value(H3XXX_EGPIO_OPT_ON, 0); + gpio_set_value(H3XXX_EGPIO_OPT_NVRAM_ON, 0); + /* hmm, does this suck power? */ + gpio_set_value(H3XXX_EGPIO_OPT_RESET, 1); + } +} + +struct pcmcia_low_level h3600_pcmcia_ops = { + .owner = THIS_MODULE, + .hw_init = h3600_pcmcia_hw_init, + .hw_shutdown = h3600_pcmcia_hw_shutdown, + .socket_state = h3600_pcmcia_socket_state, + .configure_socket = h3600_pcmcia_configure_socket, + + .socket_init = h3600_pcmcia_socket_init, + .socket_suspend = h3600_pcmcia_socket_suspend, +}; + +int pcmcia_h3600_init(struct device *dev) +{ + int ret = -ENODEV; + + if (machine_is_h3600() || machine_is_h3100()) + ret = sa11xx_drv_pcmcia_probe(dev, &h3600_pcmcia_ops, 0, 2); + + return ret; +} -- cgit 1.2.3-korg