^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) * linux/drivers/pcmcia/pxa2xx_vpac270.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Driver for Voipac PXA270 PCMCIA and CF sockets
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (C) 2010-2011 Marek Vasut <marek.vasut@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/gpio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <asm/mach-types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <mach/vpac270.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "soc_common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static struct gpio vpac270_pcmcia_gpios[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) { GPIO107_VPAC270_PCMCIA_PPEN, GPIOF_INIT_LOW, "PCMCIA PPEN" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) { GPIO11_VPAC270_PCMCIA_RESET, GPIOF_INIT_LOW, "PCMCIA Reset" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static struct gpio vpac270_cf_gpios[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) { GPIO16_VPAC270_CF_RESET, GPIOF_INIT_LOW, "CF Reset" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) if (skt->nr == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) ret = gpio_request_array(vpac270_pcmcia_gpios,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) ARRAY_SIZE(vpac270_pcmcia_gpios));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) skt->stat[SOC_STAT_CD].gpio = GPIO84_VPAC270_PCMCIA_CD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) skt->stat[SOC_STAT_CD].name = "PCMCIA CD";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) skt->stat[SOC_STAT_RDY].gpio = GPIO35_VPAC270_PCMCIA_RDY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) skt->stat[SOC_STAT_RDY].name = "PCMCIA Ready";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) ret = gpio_request_array(vpac270_cf_gpios,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) ARRAY_SIZE(vpac270_cf_gpios));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) skt->stat[SOC_STAT_CD].gpio = GPIO17_VPAC270_CF_CD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) skt->stat[SOC_STAT_CD].name = "CF CD";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) skt->stat[SOC_STAT_RDY].gpio = GPIO12_VPAC270_CF_RDY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) skt->stat[SOC_STAT_RDY].name = "CF Ready";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) static void vpac270_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) {
^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_free_array(vpac270_pcmcia_gpios,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) ARRAY_SIZE(vpac270_pcmcia_gpios));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) gpio_free_array(vpac270_cf_gpios,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) ARRAY_SIZE(vpac270_cf_gpios));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static void vpac270_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) struct pcmcia_state *state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) state->vs_3v = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) state->vs_Xv = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) vpac270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) const socket_state_t *state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) if (skt->nr == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) gpio_set_value(GPIO11_VPAC270_PCMCIA_RESET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) (state->flags & SS_RESET));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) gpio_set_value(GPIO107_VPAC270_PCMCIA_PPEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) !(state->Vcc == 33 || state->Vcc == 50));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) gpio_set_value(GPIO16_VPAC270_CF_RESET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) (state->flags & SS_RESET));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) static struct pcmcia_low_level vpac270_pcmcia_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) .first = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) .nr = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .hw_init = vpac270_pcmcia_hw_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .hw_shutdown = vpac270_pcmcia_hw_shutdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) .socket_state = vpac270_pcmcia_socket_state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) .configure_socket = vpac270_pcmcia_configure_socket,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static struct platform_device *vpac270_pcmcia_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static int __init vpac270_pcmcia_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (!machine_is_vpac270())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) vpac270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) if (!vpac270_pcmcia_device)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) ret = platform_device_add_data(vpac270_pcmcia_device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) &vpac270_pcmcia_ops, sizeof(vpac270_pcmcia_ops));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) ret = platform_device_add(vpac270_pcmcia_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) platform_device_put(vpac270_pcmcia_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static void __exit vpac270_pcmcia_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) platform_device_unregister(vpac270_pcmcia_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) module_init(vpac270_pcmcia_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) module_exit(vpac270_pcmcia_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) MODULE_DESCRIPTION("PCMCIA support for Voipac PXA270");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) MODULE_ALIAS("platform:pxa2xx-pcmcia");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags