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powerpc/83xx: add mmc-spi support via the device tree for MPC8323E-RDB

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- Add gpio-controller node to manage QE GPIO Bank D;
- Add mmc-spi node;
- Modify board file so that it won't use legacy SPI support with the new
  device trees.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Anton Vorontsov 2009-03-31 15:24:39 -07:00 committed by Linus Torvalds
parent 3f1c6ebf57
commit 7545828531
2 changed files with 30 additions and 0 deletions
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24
arch/powerpc/boot/dts/mpc832x_rdb.dts
View File

@ -152,10 +152,21 @@
};
par_io@1400 {
#address-cells = <1>;
#size-cells = <1>;
reg = <0x1400 0x100>;
ranges = <3 0x1448 0x18>;
compatible = "fsl,mpc8323-qe-pario";
device_type = "par_io";
num-ports = <7>;
qe_pio_d: gpio-controller@1448 {
#gpio-cells = <2>;
compatible = "fsl,mpc8323-qe-pario-bank";
reg = <3 0x18>;
gpio-controller;
};
ucc2pio:ucc_pin@02 {
pio-map = <
/* port pin dir open_drain assignment has_irq */
@ -225,12 +236,25 @@
};
spi@4c0 {
#address-cells = <1>;
#size-cells = <0>;
cell-index = <0>;
compatible = "fsl,spi";
reg = <0x4c0 0x40>;
interrupts = <2>;
interrupt-parent = <&qeic>;
gpios = <&qe_pio_d 13 0>;
mode = "cpu-qe";
mmc-slot@0 {
compatible = "fsl,mpc8323rdb-mmc-slot",
"mmc-spi-slot";
reg = <0>;
gpios = <&qe_pio_d 14 1
&qe_pio_d 15 0>;
voltage-ranges = <3300 3300>;
spi-max-frequency = <50000000>;
};
};
spi@500 {

6
arch/powerpc/platforms/83xx/mpc832x_rdb.c
View File

@ -68,6 +68,12 @@ static int __init mpc832x_spi_init(void)
par_io_config_pin(3, 14, 2, 0, 0, 0); /* SD_INSERT, I */
par_io_config_pin(3, 15, 2, 0, 0, 0); /* SD_PROTECT,I */
/*
* Don't bother with legacy stuff when device tree contains
* mmc-spi-slot node.
*/
if (of_find_compatible_node(NULL, NULL, "mmc-spi-slot"))
return 0;
return fsl_spi_init(&mpc832x_spi_boardinfo, 1, mpc83xx_spi_cs_control);
}
machine_device_initcall(mpc832x_rdb, mpc832x_spi_init);