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    Subject[PATCH 2/2] [POWERPC] MPC8349E-mITX: use platform IDE driver for CF interface
    Date

    This updates relevant platform code (freescale mpc8349itx target)
    to make the CompactFlash work in TrueIDE mode.

    Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
    Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>

    ---

    arch/powerpc/boot/dts/mpc8349emitx.dts | 9 ++++
    arch/powerpc/platforms/83xx/mpc834x_itx.c | 70 +++++++++++++++++++++++++++++
    2 files changed, 79 insertions(+), 0 deletions(-)

    diff --git a/arch/powerpc/boot/dts/mpc8349emitx.dts b/arch/powerpc/boot/dts/mpc8349emitx.dts
    index db0d003..f8f0e8a 100644
    --- a/arch/powerpc/boot/dts/mpc8349emitx.dts
    +++ b/arch/powerpc/boot/dts/mpc8349emitx.dts
    @@ -37,6 +37,15 @@
    reg = <00000000 10000000>;
    };

    + ide@f0000000 {
    + compatible = "mmio-ide";
    + device_type = "ide";
    + reg = <f0000000 10 f000020c 4>;
    + ioport_shift = <1>;
    + interrupts = <17 8>;
    + interrupt-parent = < &ipic >;
    + };
    +
    soc8349@e0000000 {
    #address-cells = <1>;
    #size-cells = <1>;
    diff --git a/arch/powerpc/platforms/83xx/mpc834x_itx.c b/arch/powerpc/platforms/83xx/mpc834x_itx.c
    index 40a0194..d63a104 100644
    --- a/arch/powerpc/platforms/83xx/mpc834x_itx.c
    +++ b/arch/powerpc/platforms/83xx/mpc834x_itx.c
    @@ -23,6 +23,7 @@
    #include <linux/delay.h>
    #include <linux/seq_file.h>
    #include <linux/root_dev.h>
    +#include <linux/pata_platform.h>

    #include <asm/system.h>
    #include <asm/atomic.h>
    @@ -43,6 +44,75 @@ unsigned long isa_io_base = 0;
    unsigned long isa_mem_base = 0;
    #endif

    +static int __init mmio_ide_of_init(void)
    +{
    + struct device_node *np;
    + unsigned int i;
    +
    + for (np = NULL, i = 0;
    + (np = of_find_compatible_node(np, "ide", "mmio-ide")) != NULL;
    + i++) {
    + int ret = 0;
    + struct resource res[3];
    + struct platform_device *pdev = NULL;
    + static struct pata_platform_info pdata;
    +
    + memset(res, 0, sizeof(res));
    +
    + ret = of_address_to_resource(np, 0, &res[0]);
    + if (ret) {
    + printk(KERN_ERR "mmio-ide.%d: unable to get "
    + "resource from OF\n", i);
    + goto err0;
    + }
    +
    + ret = of_address_to_resource(np, 1, &res[1]);
    + if (ret) {
    + printk(KERN_ERR "mmio-ide.%d: unable to get "
    + "resource from OF\n", i);
    + goto err0;
    + }
    +
    + res[2].start = res[2].end = irq_of_parse_and_map(np, 0);
    + if (res[2].start == NO_IRQ) {
    + printk(KERN_ERR "mmio-ide.%d: no IRQ\n", i);
    + goto err0;
    + }
    + res[2].name = "pata_platform";
    + res[2].flags = IORESOURCE_IRQ;
    +
    + pdata.ioport_shift = *((u32 *)of_get_property(np,
    + "ioport_shift", NULL));
    +
    + pdev = platform_device_alloc("pata_platform", i);
    + if (!pdev)
    + goto err1;
    +
    + ret = platform_device_add_data(pdev, &pdata, sizeof(pdata));
    + if (ret)
    + goto err1;
    +
    + ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
    + if (ret)
    + goto err1;
    +
    + ret = platform_device_register(pdev);
    + if (ret)
    + goto err1;
    +
    + continue;
    +err1:
    + printk(KERN_ERR "mmio-ide.%d: registration failed\n", i);
    + platform_device_del(pdev); /* it will free everything */
    +err0:
    + /* Even if some device failed, try others */
    + continue;
    + }
    +
    + return 0;
    +}
    +device_initcall(mmio_ide_of_init);
    +
    /* ************************************************************************
    *
    * Setup the architecture
    -
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