^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * drivers/pcmcia/sa1100_simpad.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * PCMCIA implementation routines for simpad
^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/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <mach/hardware.h>
^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) #include <mach/simpad.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "sa1100_generic.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) static int simpad_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) simpad_clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) skt->stat[SOC_STAT_CD].name = "cf-detect";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) skt->stat[SOC_STAT_RDY].name = "cf-ready";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) return soc_pcmcia_request_gpiods(skt);
^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 void simpad_pcmcia_hw_shutdown(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) /* Disable CF bus: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) /*simpad_set_cs3_bit(PCMCIA_BUFF_DIS);*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) simpad_clear_cs3_bit(PCMCIA_RESET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) simpad_pcmcia_socket_state(struct soc_pcmcia_socket *skt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct pcmcia_state *state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) long cs3reg = simpad_get_cs3_ro();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) /* bvd1 might be cs3reg & PCMCIA_BVD1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) /* bvd2 might be cs3reg & PCMCIA_BVD2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) if ((cs3reg & (PCMCIA_VS1|PCMCIA_VS2)) ==
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) (PCMCIA_VS1|PCMCIA_VS2)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) state->vs_3v=0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) state->vs_Xv=0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) state->vs_3v=1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) state->vs_Xv=0;
^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)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) simpad_pcmcia_configure_socket(struct soc_pcmcia_socket *skt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) const socket_state_t *state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) local_irq_save(flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) /* Murphy: see table of MIC2562a-1 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) switch (state->Vcc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) simpad_clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) case 33:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) simpad_clear_cs3_bit(VCC_3V_EN|EN1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) simpad_set_cs3_bit(VCC_5V_EN|EN0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) case 50:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) simpad_clear_cs3_bit(VCC_5V_EN|EN1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) simpad_set_cs3_bit(VCC_3V_EN|EN0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) printk(KERN_ERR "%s(): unrecognized Vcc %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) __func__, state->Vcc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) simpad_clear_cs3_bit(VCC_3V_EN|VCC_5V_EN|EN0|EN1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) local_irq_restore(flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^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) local_irq_restore(flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static void simpad_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) simpad_set_cs3_bit(PCMCIA_RESET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) static struct pcmcia_low_level simpad_pcmcia_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) .hw_init = simpad_pcmcia_hw_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) .hw_shutdown = simpad_pcmcia_hw_shutdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) .socket_state = simpad_pcmcia_socket_state,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) .configure_socket = simpad_pcmcia_configure_socket,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) .socket_suspend = simpad_pcmcia_socket_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) int pcmcia_simpad_init(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) int ret = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) if (machine_is_simpad())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) ret = sa11xx_drv_pcmcia_probe(dev, &simpad_pcmcia_ops, 1, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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