diff options
Diffstat (limited to 'arch/arm/mach-pxa/balloon3-pcmcia.c')
| -rw-r--r-- | arch/arm/mach-pxa/balloon3-pcmcia.c | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/arch/arm/mach-pxa/balloon3-pcmcia.c b/arch/arm/mach-pxa/balloon3-pcmcia.c deleted file mode 100644 index 6a27b76cc603..000000000000 --- a/arch/arm/mach-pxa/balloon3-pcmcia.c +++ /dev/null @@ -1,137 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * linux/drivers/pcmcia/pxa2xx_balloon3.c - * - * Balloon3 PCMCIA specific routines. - * - * Author: Nick Bane - * Created: June, 2006 - * Copyright: Toby Churchill Ltd - * Derived from pxa2xx_mainstone.c, by Nico Pitre - * - * Various modification by Marek Vasut <marek.vasut@gmail.com> - */ - -#include <linux/module.h> -#include <linux/gpio.h> -#include <linux/errno.h> -#include <linux/interrupt.h> -#include <linux/platform_device.h> -#include <linux/irq.h> -#include <linux/io.h> - -#include "balloon3.h" - -#include <asm/mach-types.h> - -#include <pcmcia/soc_common.h> - -static int balloon3_pcmcia_hw_init(struct soc_pcmcia_socket *skt) -{ - uint16_t ver; - - ver = __raw_readw(BALLOON3_FPGA_VER); - if (ver < 0x4f08) - pr_warn("The FPGA code, version 0x%04x, is too old. " - "PCMCIA/CF support might be broken in this version!", - ver); - - skt->socket.pci_irq = BALLOON3_BP_CF_NRDY_IRQ; - skt->stat[SOC_STAT_CD].gpio = BALLOON3_GPIO_S0_CD; - skt->stat[SOC_STAT_CD].name = "PCMCIA0 CD"; - skt->stat[SOC_STAT_BVD1].irq = BALLOON3_BP_NSTSCHG_IRQ; - skt->stat[SOC_STAT_BVD1].name = "PCMCIA0 STSCHG"; - - return 0; -} - -static unsigned long balloon3_pcmcia_status[2] = { - BALLOON3_CF_nSTSCHG_BVD1, - BALLOON3_CF_nSTSCHG_BVD1 -}; - -static void balloon3_pcmcia_socket_state(struct soc_pcmcia_socket *skt, - struct pcmcia_state *state) -{ - uint16_t status; - int flip; - - /* This actually reads the STATUS register */ - status = __raw_readw(BALLOON3_CF_STATUS_REG); - flip = (status ^ balloon3_pcmcia_status[skt->nr]) - & BALLOON3_CF_nSTSCHG_BVD1; - /* - * Workaround for STSCHG which can't be deasserted: - * We therefore disable/enable corresponding IRQs - * as needed to avoid IRQ locks. - */ - if (flip) { - balloon3_pcmcia_status[skt->nr] = status; - if (status & BALLOON3_CF_nSTSCHG_BVD1) - enable_irq(BALLOON3_BP_NSTSCHG_IRQ); - else - disable_irq(BALLOON3_BP_NSTSCHG_IRQ); - } - - state->ready = !!(status & BALLOON3_CF_nIRQ); - state->bvd1 = !!(status & BALLOON3_CF_nSTSCHG_BVD1); - state->bvd2 = 0; /* not available */ - state->vs_3v = 1; /* Always true its a CF card */ - state->vs_Xv = 0; /* not available */ -} - -static int balloon3_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, - const socket_state_t *state) -{ - __raw_writew(BALLOON3_CF_RESET, BALLOON3_CF_CONTROL_REG + - ((state->flags & SS_RESET) ? - BALLOON3_FPGA_SETnCLR : 0)); - return 0; -} - -static struct pcmcia_low_level balloon3_pcmcia_ops = { - .owner = THIS_MODULE, - .hw_init = balloon3_pcmcia_hw_init, - .socket_state = balloon3_pcmcia_socket_state, - .configure_socket = balloon3_pcmcia_configure_socket, - .first = 0, - .nr = 1, -}; - -static struct platform_device *balloon3_pcmcia_device; - -static int __init balloon3_pcmcia_init(void) -{ - int ret; - - if (!machine_is_balloon3()) - return -ENODEV; - - balloon3_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); - if (!balloon3_pcmcia_device) - return -ENOMEM; - - ret = platform_device_add_data(balloon3_pcmcia_device, - &balloon3_pcmcia_ops, sizeof(balloon3_pcmcia_ops)); - - if (!ret) - ret = platform_device_add(balloon3_pcmcia_device); - - if (ret) - platform_device_put(balloon3_pcmcia_device); - - return ret; -} - -static void __exit balloon3_pcmcia_exit(void) -{ - platform_device_unregister(balloon3_pcmcia_device); -} - -module_init(balloon3_pcmcia_init); -module_exit(balloon3_pcmcia_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Nick Bane <nick@cecomputing.co.uk>"); -MODULE_ALIAS("platform:pxa2xx-pcmcia"); -MODULE_DESCRIPTION("Balloon3 board CF/PCMCIA driver"); |