^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_jornada720.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Jornada720 PCMCIA specific routines
^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/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/gpio/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <mach/hardware.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <asm/mach-types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "sa1111_generic.h"
^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) * Socket 0 power: GPIO A0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * Socket 0 3V: GPIO A2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * Socket 1 power: GPIO A1 & GPIO A3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * Socket 1 3V: GPIO A3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * Does Socket 1 3V actually do anything?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) J720_GPIO_PWR,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) J720_GPIO_3V,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) J720_GPIO_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct jornada720_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct gpio_desc *gpio[J720_GPIO_MAX];
^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 int jornada720_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct device *dev = skt->socket.dev.parent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct jornada720_data *j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) j = devm_kzalloc(dev, sizeof(*j), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) if (!j)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) j->gpio[J720_GPIO_PWR] = devm_gpiod_get(dev, skt->nr ? "s1-power" :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) "s0-power", GPIOD_OUT_LOW);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) if (IS_ERR(j->gpio[J720_GPIO_PWR]))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) return PTR_ERR(j->gpio[J720_GPIO_PWR]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) j->gpio[J720_GPIO_3V] = devm_gpiod_get(dev, skt->nr ? "s1-3v" :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) "s0-3v", GPIOD_OUT_LOW);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) if (IS_ERR(j->gpio[J720_GPIO_3V]))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) return PTR_ERR(j->gpio[J720_GPIO_3V]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) skt->driver_data = j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) jornada720_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) struct jornada720_data *j = skt->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) DECLARE_BITMAP(values, J720_GPIO_MAX) = { 0, };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) printk(KERN_INFO "%s(): config socket %d vcc %d vpp %d\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) skt->nr, state->Vcc, state->Vpp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) switch (skt->nr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) switch (state->Vcc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) __assign_bit(J720_GPIO_PWR, values, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) __assign_bit(J720_GPIO_3V, values, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) case 33:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) __assign_bit(J720_GPIO_PWR, values, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) __assign_bit(J720_GPIO_3V, values, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) case 50:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) __assign_bit(J720_GPIO_PWR, values, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) __assign_bit(J720_GPIO_3V, values, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) switch (state->Vcc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) __assign_bit(J720_GPIO_PWR, values, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) __assign_bit(J720_GPIO_3V, values, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) case 33:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) case 50:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) __assign_bit(J720_GPIO_PWR, values, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) __assign_bit(J720_GPIO_3V, values, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) if (state->Vpp != state->Vcc && state->Vpp != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) printk(KERN_ERR "%s(): slot cannot support VPP %u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) __func__, state->Vpp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) ret = sa1111_pcmcia_configure_socket(skt, state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) if (ret == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) ret = gpiod_set_array_value_cansleep(J720_GPIO_MAX, j->gpio,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) NULL, values);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static struct pcmcia_low_level jornada720_pcmcia_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) .hw_init = jornada720_pcmcia_hw_init,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) .configure_socket = jornada720_pcmcia_configure_socket,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) .first = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) .nr = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) int pcmcia_jornada720_init(struct sa1111_dev *sadev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) /* Fixme: why messing around with SA11x0's GPIO1? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) GRER |= 0x00000002;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) sa11xx_drv_pcmcia_ops(&jornada720_pcmcia_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) return sa1111_pcmcia_add(sadev, &jornada720_pcmcia_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) sa11xx_drv_pcmcia_add_one);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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