forked from luck/tmp_suning_uos_patched
3f8df892b2
When testing Lubbock, it was noticed that the sa1111 pcmcia driver bound but was not functional due to no sockets being registered. This is because the return code from the lowlevel board initialisation was not being propagated out of the probe function. Fix this. Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
111 lines
2.3 KiB
C
111 lines
2.3 KiB
C
/*
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* drivers/pcmcia/sa1100_jornada720.c
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*
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* Jornada720 PCMCIA specific routines
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*
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/device.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <mach/hardware.h>
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#include <asm/hardware/sa1111.h>
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#include <asm/mach-types.h>
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#include "sa1111_generic.h"
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/* Does SOCKET1_3V actually do anything? */
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#define SOCKET0_POWER GPIO_GPIO0
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#define SOCKET0_3V GPIO_GPIO2
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#define SOCKET1_POWER (GPIO_GPIO1 | GPIO_GPIO3)
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#define SOCKET1_3V GPIO_GPIO3
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static int
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jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
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{
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struct sa1111_pcmcia_socket *s = to_skt(skt);
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unsigned int pa_dwr_mask, pa_dwr_set;
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int ret;
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printk(KERN_INFO "%s(): config socket %d vcc %d vpp %d\n", __func__,
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skt->nr, state->Vcc, state->Vpp);
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switch (skt->nr) {
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case 0:
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pa_dwr_mask = SOCKET0_POWER | SOCKET0_3V;
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switch (state->Vcc) {
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default:
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case 0:
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pa_dwr_set = 0;
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break;
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case 33:
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pa_dwr_set = SOCKET0_POWER | SOCKET0_3V;
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break;
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case 50:
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pa_dwr_set = SOCKET0_POWER;
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break;
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}
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break;
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case 1:
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pa_dwr_mask = SOCKET1_POWER;
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switch (state->Vcc) {
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default:
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case 0:
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pa_dwr_set = 0;
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break;
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case 33:
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pa_dwr_set = SOCKET1_POWER;
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break;
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case 50:
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pa_dwr_set = SOCKET1_POWER;
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break;
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}
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break;
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default:
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return -1;
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}
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if (state->Vpp != state->Vcc && state->Vpp != 0) {
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printk(KERN_ERR "%s(): slot cannot support VPP %u\n",
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__func__, state->Vpp);
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return -EPERM;
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}
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ret = sa1111_pcmcia_configure_socket(skt, state);
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if (ret == 0)
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sa1111_set_io(s->dev, pa_dwr_mask, pa_dwr_set);
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return ret;
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}
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static struct pcmcia_low_level jornada720_pcmcia_ops = {
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.owner = THIS_MODULE,
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.configure_socket = jornada720_pcmcia_configure_socket,
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.first = 0,
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.nr = 2,
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};
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int pcmcia_jornada720_init(struct sa1111_dev *sadev)
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{
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unsigned int pin = GPIO_A0 | GPIO_A1 | GPIO_A2 | GPIO_A3;
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/* Fixme: why messing around with SA11x0's GPIO1? */
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GRER |= 0x00000002;
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/* Set GPIO_A<3:1> to be outputs for PCMCIA/CF power controller: */
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sa1111_set_io_dir(sadev, pin, 0, 0);
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sa1111_set_io(sadev, pin, 0);
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sa1111_set_sleep_io(sadev, pin, 0);
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sa11xx_drv_pcmcia_ops(&jornada720_pcmcia_ops);
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return sa1111_pcmcia_add(sadev, &jornada720_pcmcia_ops,
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sa11xx_drv_pcmcia_add_one);
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}
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