^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Toshiba e740 PCMCIA specific routines.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * (c) 2004 Ian Molton <spyro@f2s.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/gpio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <mach/eseries-gpio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <asm/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <asm/mach-types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "soc_common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static int e740_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) if (skt->nr == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) skt->stat[SOC_STAT_CD].gpio = GPIO_E740_PCMCIA_CD0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) skt->stat[SOC_STAT_CD].name = "CF card detect";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) skt->stat[SOC_STAT_RDY].gpio = GPIO_E740_PCMCIA_RDY0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) skt->stat[SOC_STAT_RDY].name = "CF ready";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) skt->stat[SOC_STAT_CD].gpio = GPIO_E740_PCMCIA_CD1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) skt->stat[SOC_STAT_CD].name = "Wifi switch";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) skt->stat[SOC_STAT_RDY].gpio = GPIO_E740_PCMCIA_RDY1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) skt->stat[SOC_STAT_RDY].name = "Wifi ready";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) static void e740_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct pcmcia_state *state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) state->vs_3v = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) state->vs_Xv = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) static int e740_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) const socket_state_t *state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) if (state->flags & SS_RESET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) if (skt->nr == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) gpio_set_value(GPIO_E740_PCMCIA_RST0, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) gpio_set_value(GPIO_E740_PCMCIA_RST1, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) if (skt->nr == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) gpio_set_value(GPIO_E740_PCMCIA_RST0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) gpio_set_value(GPIO_E740_PCMCIA_RST1, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) switch (state->Vcc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) case 0: /* Socket off */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) if (skt->nr == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) gpio_set_value(GPIO_E740_PCMCIA_PWR0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) gpio_set_value(GPIO_E740_PCMCIA_PWR1, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) case 50:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) case 33: /* socket on */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if (skt->nr == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) gpio_set_value(GPIO_E740_PCMCIA_PWR0, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) gpio_set_value(GPIO_E740_PCMCIA_PWR1, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) printk(KERN_ERR "e740_cs: Unsupported Vcc: %d\n", state->Vcc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) static struct pcmcia_low_level e740_pcmcia_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) .hw_init = e740_pcmcia_hw_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) .socket_state = e740_pcmcia_socket_state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) .configure_socket = e740_pcmcia_configure_socket,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .nr = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) static struct platform_device *e740_pcmcia_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static int __init e740_pcmcia_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) if (!machine_is_e740())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) e740_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) if (!e740_pcmcia_device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) ret = platform_device_add_data(e740_pcmcia_device, &e740_pcmcia_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) sizeof(e740_pcmcia_ops));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) ret = platform_device_add(e740_pcmcia_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) platform_device_put(e740_pcmcia_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static void __exit e740_pcmcia_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) platform_device_unregister(e740_pcmcia_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) module_init(e740_pcmcia_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) module_exit(e740_pcmcia_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) MODULE_LICENSE("GPL v2");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) MODULE_ALIAS("platform:pxa2xx-pcmcia");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) MODULE_DESCRIPTION("e740 PCMCIA platform support");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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