target/linux/brcm63xx/patches-3.6/425-MIPS-BCM63XX-add-HS-SPI-platform-device-and-register.patch

   1 From 56be5a2d7e08faa7bb306faaf352ac4e6ac52c01 Mon Sep 17 00:00:00 2001
   2 From: Jonas Gorski <jonas.gorski@gmail.com>
   3 Date: Sat, 12 Nov 2011 12:18:26 +0100
   4 Subject: [PATCH 26/60] MIPS: BCM63XX: add HS SPI platform device and register it
   5
   6 Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
   7 ---
   8  arch/mips/bcm63xx/Makefile                         |    5 +-
   9  arch/mips/bcm63xx/boards/board_bcm963xx.c          |    2 +
  10  arch/mips/bcm63xx/dev-hsspi.c                      |   57 ++++++++++++++++++++
  11  .../include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h   |   20 +++++++
  12  4 files changed, 82 insertions(+), 2 deletions(-)
  13  create mode 100644 arch/mips/bcm63xx/dev-hsspi.c
  14  create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h
  15
  16 --- a/arch/mips/bcm63xx/Makefile
  17 +++ b/arch/mips/bcm63xx/Makefile
  18 @@ -1,6 +1,7 @@
  19  obj-y          += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
  20 -                  dev-dsp.o dev-enet.o dev-flash.o dev-pcmcia.o dev-rng.o \
  21 -                  dev-spi.o dev-uart.o dev-usb-ehci.o dev-usb-ohci.o dev-wdt.o
  22 +                  dev-dsp.o dev-enet.o dev-flash.o dev-hsspi.o dev-pcmcia.o \
  23 +                  dev-rng.o dev-spi.o dev-uart.o dev-usb-ehci.o \
  24 +                  dev-usb-ohci.o dev-wdt.o
  25  obj-$(CONFIG_EARLY_PRINTK)     += early_printk.o
  26
  27  obj-y          += boards/
  28 --- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
  29 +++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
  30 @@ -25,6 +25,7 @@
  31  #include <bcm63xx_dev_enet.h>
  32  #include <bcm63xx_dev_dsp.h>
  33  #include <bcm63xx_dev_flash.h>
  34 +#include <bcm63xx_dev_hsspi.h>
  35  #include <bcm63xx_dev_pcmcia.h>
  36  #include <bcm63xx_dev_spi.h>
  37  #include <bcm63xx_dev_usb_ohci.h>
  38 @@ -990,6 +991,7 @@ int __init board_register_devices(void)
  39                         pr_err(PFX "failed to register fallback SPROM\n");
  40         }
  41  #endif
  42 +       bcm63xx_hsspi_register();
  43
  44         bcm63xx_spi_register();
  45
  46 --- /dev/null
  47 +++ b/arch/mips/bcm63xx/dev-hsspi.c
  48 @@ -0,0 +1,57 @@
  49 +/*
  50 + * This file is subject to the terms and conditions of the GNU General Public
  51 + * License.  See the file "COPYING" in the main directory of this archive
  52 + * for more details.
  53 + *
  54 + * Copyright (C) 2012 Jonas Gorski <jonas.gorski@gmail.com>
  55 + */
  56 +
  57 +#include <linux/init.h>
  58 +#include <linux/kernel.h>
  59 +#include <linux/platform_device.h>
  60 +
  61 +#include <bcm63xx_cpu.h>
  62 +#include <bcm63xx_dev_hsspi.h>
  63 +#include <bcm63xx_regs.h>
  64 +
  65 +static struct resource spi_resources[] = {
  66 +       {
  67 +               .start          = -1, /* filled at runtime */
  68 +               .end            = -1, /* filled at runtime */
  69 +               .flags          = IORESOURCE_MEM,
  70 +       },
  71 +       {
  72 +               .start          = -1, /* filled at runtime */
  73 +               .flags          = IORESOURCE_IRQ,
  74 +       },
  75 +};
  76 +
  77 +static struct bcm63xx_hsspi_pdata spi_pdata = {
  78 +       .bus_num        = 0,
  79 +};
  80 +
  81 +static struct platform_device bcm63xx_hsspi_device = {
  82 +       .name           = "bcm63xx-hsspi",
  83 +       .id             = 0,
  84 +       .num_resources  = ARRAY_SIZE(spi_resources),
  85 +       .resource       = spi_resources,
  86 +       .dev            = {
  87 +               .platform_data = &spi_pdata,
  88 +       },
  89 +};
  90 +
  91 +int __init bcm63xx_hsspi_register(void)
  92 +{
  93 +
  94 +       if (!BCMCPU_IS_6328())
  95 +               return -ENODEV;
  96 +
  97 +       spi_resources[0].start = bcm63xx_regset_address(RSET_HSSPI);
  98 +       spi_resources[0].end = spi_resources[0].start;
  99 +       spi_resources[0].end += RSET_HSSPI_SIZE - 1;
 100 +       spi_resources[1].start = bcm63xx_get_irq_number(IRQ_HSSPI);
 101 +
 102 +       spi_pdata.speed_hz = HSSPI_PLL_HZ_6328;
 103 +
 104 +       return platform_device_register(&bcm63xx_hsspi_device);
 105 +}
 106 --- /dev/null
 107 +++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h
 108 @@ -0,0 +1,20 @@
 109 +#ifndef BCM63XX_DEV_HSSPI_H
 110 +#define BCM63XX_DEV_HSSPI_H
 111 +
 112 +#include <linux/types.h>
 113 +#include <bcm63xx_io.h>
 114 +#include <bcm63xx_regs.h>
 115 +
 116 +int __init bcm63xx_hsspi_register(void);
 117 +
 118 +struct bcm63xx_hsspi_pdata {
 119 +       int             bus_num;
 120 +       u32             speed_hz;
 121 +};
 122 +
 123 +#define bcm_hsspi_readl(o)     bcm_rset_readl(RSET_HSSPI, (o))
 124 +#define bcm_hsspi_writel(v, o) bcm_rset_writel(RSET_HSSPI, (v), (o))
 125 +
 126 +#define HSSPI_PLL_HZ_6328      133333333
 127 +
 128 +#endif /* BCM63XX_DEV_HSSPI_H */