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

   1 Index: linux-3.7.1/arch/mips/lantiq/xway/Makefile
   2 ===================================================================
   3 --- linux-3.7.1.orig/arch/mips/lantiq/xway/Makefile     2013-01-09 09:30:35.000000000 +0100
   4 +++ linux-3.7.1/arch/mips/lantiq/xway/Makefile  2013-01-09 09:33:03.932167465 +0100
   5 @@ -1,6 +1,6 @@
   6  obj-y := prom.o sysctrl.o clk.o reset.o dma.o timer.o dcdc.o
   7
   8 -obj-y += eth_mac.o
   9 +obj-y += eth_mac.o vmmc.o
  10  obj-$(CONFIG_PCI) += ath_eep.o rt_eep.o
  11
  12  obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
  13 Index: linux-3.7.1/arch/mips/lantiq/xway/vmmc.c
  14 ===================================================================
  15 --- /dev/null   1970-01-01 00:00:00.000000000 +0000
  16 +++ linux-3.7.1/arch/mips/lantiq/xway/vmmc.c    2013-01-09 09:31:49.264164272 +0100
  17 @@ -0,0 +1,63 @@
  18 +/*
  19 + *  This program is free software; you can redistribute it and/or modify it
  20 + *  under the terms of the GNU General Public License version 2 as published
  21 + *  by the Free Software Foundation.
  22 + *
  23 + *  Copyright (C) 2012 John Crispin <blogic@openwrt.org>
  24 + */
  25 +
  26 +#include <linux/module.h>
  27 +#include <linux/of_platform.h>
  28 +#include <linux/of_gpio.h>
  29 +#include <linux/dma-mapping.h>
  30 +
  31 +#include <lantiq_soc.h>
  32 +
  33 +static unsigned int *cp1_base = 0;
  34 +unsigned int* ltq_get_cp1_base(void)
  35 +{
  36 +       if (!cp1_base)
  37 +               panic("no cp1 base was set\n");
  38 +       return cp1_base;
  39 +}
  40 +EXPORT_SYMBOL(ltq_get_cp1_base);
  41 +
  42 +static int __devinit vmmc_probe(struct platform_device *pdev)
  43 +{
  44 +#define CP1_SIZE       (1 << 20)
  45 +       int gpio_count;
  46 +       dma_addr_t dma;
  47 +       cp1_base =
  48 +               (void*)CPHYSADDR(dma_alloc_coherent(NULL, CP1_SIZE, &dma, GFP_ATOMIC));
  49 +
  50 +       gpio_count = of_gpio_count(pdev->dev.of_node);
  51 +       while (gpio_count) {
  52 +               enum of_gpio_flags flags;
  53 +               int gpio = of_get_gpio_flags(pdev->dev.of_node, --gpio_count, &flags);
  54 +               if (gpio_request(gpio, "vmmc-relay"))
  55 +                       continue;
  56 +               dev_info(&pdev->dev, "requested GPIO %d\n", gpio);
  57 +               gpio_direction_output(gpio, (flags & OF_GPIO_ACTIVE_LOW) ? (0) : (1));
  58 +       }
  59 +
  60 +       dev_info(&pdev->dev, "reserved %dMB at 0x%p", CP1_SIZE >> 20, cp1_base);
  61 +
  62 +       return 0;
  63 +}
  64 +
  65 +static const struct of_device_id vmmc_match[] = {
  66 +       { .compatible = "lantiq,vmmc" },
  67 +       {},
  68 +};
  69 +MODULE_DEVICE_TABLE(of, vmmc_match);
  70 +
  71 +static struct platform_driver vmmc_driver = {
  72 +       .probe = vmmc_probe,
  73 +       .driver = {
  74 +               .name = "lantiq,vmmc",
  75 +               .owner = THIS_MODULE,
  76 +               .of_match_table = vmmc_match,
  77 +       },
  78 +};
  79 +
  80 +module_platform_driver(vmmc_driver);