target/linux/lantiq/patches-3.7/0303-vmmc.patch

   1 Index: linux-3.7-rc8/arch/mips/lantiq/xway/Makefile
   2 ===================================================================
   3 --- linux-3.7-rc8.orig/arch/mips/lantiq/xway/Makefile   2012-12-13 13:40:23.000000000 +0100
   4 +++ linux-3.7-rc8/arch/mips/lantiq/xway/Makefile        2012-12-13 13:40:49.788556963 +0100
   5 @@ -1,5 +1,5 @@
   6  obj-y := prom.o sysctrl.o clk.o reset.o dma.o timer.o dcdc.o
   7
   8 -obj-y += ath_eep.o rt_eep.o eth_mac.o
   9 +obj-y += ath_eep.o rt_eep.o eth_mac.o vmmc.o
  10
  11  obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
  12 Index: linux-3.7-rc8/arch/mips/lantiq/xway/vmmc.c
  13 ===================================================================
  14 --- /dev/null   1970-01-01 00:00:00.000000000 +0000
  15 +++ linux-3.7-rc8/arch/mips/lantiq/xway/vmmc.c  2012-12-13 13:40:30.520556476 +0100
  16 @@ -0,0 +1,63 @@
  17 +/*
  18 + *  This program is free software; you can redistribute it and/or modify it
  19 + *  under the terms of the GNU General Public License version 2 as published
  20 + *  by the Free Software Foundation.
  21 + *
  22 + *  Copyright (C) 2012 John Crispin <blogic@openwrt.org>
  23 + */
  24 +
  25 +#include <linux/module.h>
  26 +#include <linux/of_platform.h>
  27 +#include <linux/of_gpio.h>
  28 +#include <linux/dma-mapping.h>
  29 +
  30 +#include <lantiq_soc.h>
  31 +
  32 +static unsigned int *cp1_base = 0;
  33 +unsigned int* ltq_get_cp1_base(void)
  34 +{
  35 +       if (!cp1_base)
  36 +               panic("no cp1 base was set\n");
  37 +       return cp1_base;
  38 +}
  39 +EXPORT_SYMBOL(ltq_get_cp1_base);
  40 +
  41 +static int __devinit vmmc_probe(struct platform_device *pdev)
  42 +{
  43 +#define CP1_SIZE       (1 << 20)
  44 +       int gpio_count;
  45 +       dma_addr_t dma;
  46 +       cp1_base =
  47 +               (void*)CPHYSADDR(dma_alloc_coherent(NULL, CP1_SIZE, &dma, GFP_ATOMIC));
  48 +
  49 +       gpio_count = of_gpio_count(pdev->dev.of_node);
  50 +       while (gpio_count) {
  51 +               enum of_gpio_flags flags;
  52 +               int gpio = of_get_gpio_flags(pdev->dev.of_node, --gpio_count, &flags);
  53 +               if (gpio_request(gpio, "vmmc-relay"))
  54 +                       continue;
  55 +               dev_info(&pdev->dev, "requested GPIO %d\n", gpio);
  56 +               gpio_direction_output(gpio, (flags & OF_GPIO_ACTIVE_LOW) ? (0) : (1));
  57 +       }
  58 +
  59 +       dev_info(&pdev->dev, "reserved %dMB at 0x%p", CP1_SIZE >> 20, cp1_base);
  60 +
  61 +       return 0;
  62 +}
  63 +
  64 +static const struct of_device_id vmmc_match[] = {
  65 +       { .compatible = "lantiq,vmmc" },
  66 +       {},
  67 +};
  68 +MODULE_DEVICE_TABLE(of, vmmc_match);
  69 +
  70 +static struct platform_driver vmmc_driver = {
  71 +       .probe = vmmc_probe,
  72 +       .driver = {
  73 +               .name = "lantiq,vmmc",
  74 +               .owner = THIS_MODULE,
  75 +               .of_match_table = vmmc_match,
  76 +       },
  77 +};
  78 +
  79 +module_platform_driver(vmmc_driver);