target/linux/brcm63xx/patches-3.3/418-MIPS-BCM63XX-add-HS-SPI-platform-device-and-register.patch

   1 From a2b75f344cdc0f9e12c7909511d95b27be72c6b9 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 52/79] MIPS: BCM63XX: add HS SPI platform device and register
   5  it
   6
   7 Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
   8 ---
   9  arch/mips/bcm63xx/Makefile                         |    5 +-
  10  arch/mips/bcm63xx/boards/board_bcm963xx.c          |    2 +
  11  arch/mips/bcm63xx/dev-hsspi.c                      |   58 ++++++++++++++++++++
  12  .../include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h   |   26 +++++++++
  13  4 files changed, 89 insertions(+), 2 deletions(-)
  14  create mode 100644 arch/mips/bcm63xx/dev-hsspi.c
  15  create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h
  16
  17 --- a/arch/mips/bcm63xx/Makefile
  18 +++ b/arch/mips/bcm63xx/Makefile
  19 @@ -1,6 +1,7 @@
  20  obj-y          += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
  21 -                  dev-dsp.o dev-enet.o dev-flash.o dev-pcmcia.o dev-spi.o \
  22 -                  dev-trng.o dev-uart.o dev-usb-ehci.o dev-usb-ohci.o dev-wdt.o
  23 +                  dev-dsp.o dev-enet.o dev-flash.o dev-hsspi.o dev-pcmcia.o \
  24 +                  dev-spi.o dev-trng.o dev-uart.o dev-usb-ehci.o \
  25 +                  dev-usb-ohci.o dev-wdt.o
  26  obj-$(CONFIG_EARLY_PRINTK)     += early_printk.o
  27
  28  obj-y          += boards/
  29 --- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
  30 +++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
  31 @@ -24,6 +24,7 @@
  32  #include <bcm63xx_dev_enet.h>
  33  #include <bcm63xx_dev_dsp.h>
  34  #include <bcm63xx_dev_flash.h>
  35 +#include <bcm63xx_dev_hsspi.h>
  36  #include <bcm63xx_dev_pcmcia.h>
  37  #include <bcm63xx_dev_spi.h>
  38  #include <bcm63xx_dev_usb_ohci.h>
  39 @@ -940,6 +941,7 @@ int __init board_register_devices(void)
  40                         pr_err(PFX "failed to register fallback SPROM\n");
  41         }
  42  #endif
  43 +       bcm63xx_hsspi_register();
  44
  45         bcm63xx_spi_register();
  46
  47 --- /dev/null
  48 +++ b/arch/mips/bcm63xx/dev-hsspi.c
  49 @@ -0,0 +1,58 @@
  50 +/*
  51 + * This file is subject to the terms and conditions of the GNU General Public
  52 + * License.  See the file "COPYING" in the main directory of this archive
  53 + * for more details.
  54 + *
  55 + * Copyright (C) 2009 Florian Fainelli <florian@openwrt.org>
  56 + * Copyright (C) 2010 Tanguy Bouzeloc <tanguy.bouzeloc@efixo.com>
  57 + */
  58 +
  59 +#include <linux/init.h>
  60 +#include <linux/kernel.h>
  61 +#include <linux/platform_device.h>
  62 +
  63 +#include <bcm63xx_cpu.h>
  64 +#include <bcm63xx_dev_hsspi.h>
  65 +#include <bcm63xx_regs.h>
  66 +
  67 +static struct resource spi_resources[] = {
  68 +       {
  69 +               .start          = -1, /* filled at runtime */
  70 +               .end            = -1, /* filled at runtime */
  71 +               .flags          = IORESOURCE_MEM,
  72 +       },
  73 +       {
  74 +               .start          = -1, /* filled at runtime */
  75 +               .flags          = IORESOURCE_IRQ,
  76 +       },
  77 +};
  78 +
  79 +static struct bcm63xx_hsspi_pdata spi_pdata = {
  80 +       .bus_num        = 0,
  81 +};
  82 +
  83 +static struct platform_device bcm63xx_hsspi_device = {
  84 +       .name           = "bcm63xx-hsspi",
  85 +       .id             = 0,
  86 +       .num_resources  = ARRAY_SIZE(spi_resources),
  87 +       .resource       = spi_resources,
  88 +       .dev            = {
  89 +               .platform_data = &spi_pdata,
  90 +       },
  91 +};
  92 +
  93 +int __init bcm63xx_hsspi_register(void)
  94 +{
  95 +
  96 +       if (!BCMCPU_IS_6328())
  97 +               return -ENODEV;
  98 +
  99 +       spi_resources[0].start = bcm63xx_regset_address(RSET_HSSPI);
 100 +       spi_resources[0].end = spi_resources[0].start;
 101 +       spi_resources[0].end += RSET_HSSPI_SIZE - 1;
 102 +       spi_resources[1].start = bcm63xx_get_irq_number(IRQ_HSSPI);
 103 +
 104 +       spi_pdata.speed_hz = HSSPI_PLL_HZ_6328;
 105 +
 106 +       return platform_device_register(&bcm63xx_hsspi_device);
 107 +}
 108 --- /dev/null
 109 +++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h
 110 @@ -0,0 +1,26 @@
 111 +#ifndef BCM63XX_DEV_HSSPI_H
 112 +#define BCM63XX_DEV_HSSPI_H
 113 +
 114 +#include <linux/types.h>
 115 +#include <bcm63xx_io.h>
 116 +#include <bcm63xx_regs.h>
 117 +
 118 +int __init bcm63xx_hsspi_register(void);
 119 +
 120 +struct bcm63xx_hsspi_pdata {
 121 +       int             bus_num;
 122 +       u32             speed_hz;
 123 +};
 124 +
 125 +#define bcm_hsspi_readl(o)     bcm_rset_readl(RSET_HSSPI, (o))
 126 +#define bcm_hsspi_writel(v, o) bcm_rset_writel(RSET_HSSPI, (v), (o))
 127 +
 128 +#define HSSPI_PLL_HZ_6328      133333333
 129 +
 130 +#define HSSPI_OP_CODE_SHIFT    13
 131 +#define HSSPI_OP_SLEEP         (0 << HSSPI_OP_CODE_SHIFT)
 132 +#define HSSPI_OP_READ_WRITE    (1 << HSSPI_OP_CODE_SHIFT)
 133 +#define HSSPI_OP_WRITE         (2 << HSSPI_OP_CODE_SHIFT)
 134 +#define HSSPI_OP_READ          (3 << HSSPI_OP_CODE_SHIFT)
 135 +
 136 +#endif /* BCM63XX_DEV_HSSPI_H */