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

Vitaly Bordug
2007-07-25T16:53:55Z

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