Signed-off-by: Li Yang <[EMAIL PROTECTED]>
---
arch/powerpc/boot/dts/mpc8272ads.dts | 8 ++++++++
arch/powerpc/platforms/82xx/mpc8272_ads.c | 25 +++++++++++++++++++++++++
arch/powerpc/platforms/82xx/pq2ads.h | 3 +++
3 files changed, 36 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/boot/dts/mpc8272ads.dts
b/arch/powerpc/boot/dts/mpc8272ads.dts
index b2ce4c0..75cc94c 100644
--- a/arch/powerpc/boot/dts/mpc8272ads.dts
+++ b/arch/powerpc/boot/dts/mpc8272ads.dts
@@ -256,6 +256,14 @@
#address-cells = <1>;
#size-cells = <0>;
};
+
+ [EMAIL PROTECTED] {
+ compatible = "fsl,qe_udc";
+ reg = <0x11b60 0x40 0x8b00 0x100>;
+ interrupts = <11 8>;
+ interrupt-parent = <&PIC>;
+ mode = "slave";
+ };
};
PIC: [EMAIL PROTECTED] {
diff --git a/arch/powerpc/platforms/82xx/mpc8272_ads.c
b/arch/powerpc/platforms/82xx/mpc8272_ads.c
index 8054c68..69781e6 100644
--- a/arch/powerpc/platforms/82xx/mpc8272_ads.c
+++ b/arch/powerpc/platforms/82xx/mpc8272_ads.c
@@ -23,6 +23,7 @@
#include <asm/udbg.h>
#include <asm/machdep.h>
#include <asm/time.h>
+#include <asm/fs_pd.h>
#include <platforms/82xx/pq2.h>
@@ -100,11 +101,22 @@ static struct cpm_pin mpc8272_ads_pins[] = {
/* I2C */
{3, 14, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_OPENDRAIN},
{3, 15, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_OPENDRAIN},
+
+ /* USB */
+ {2, 20, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, /* output enable */
+ {2, 11, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* RP */
+ {2, 10, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* RN */
+ {3, 25, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* Rxd */
+ {3, 24, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, /* TN */
+ {3, 23, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, /* TP */
+ {2, 24, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, /* Usb_clk */
};
static void __init init_ioports(void)
{
int i;
+ cpmux_t __iomem *im_cpmux;
+ u32 reg;
for (i = 0; i < ARRAY_SIZE(mpc8272_ads_pins); i++) {
struct cpm_pin *pin = &mpc8272_ads_pins[i];
@@ -119,6 +131,13 @@ static void __init init_ioports(void)
cpm2_clk_setup(CPM_CLK_FCC1, CPM_CLK10, CPM_CLK_TX);
cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK15, CPM_CLK_RX);
cpm2_clk_setup(CPM_CLK_FCC2, CPM_CLK16, CPM_CLK_TX);
+
+ /* USB use clock of SCC3 */
+ cpm2_clk_setup(CPM_CLK_SCC3, CPM_CLK8, CPM_CLK_TX);
+ /* SCC3 cannot be used in NMSI mode */
+ im_cpmux = cpm2_map(im_cpmux);
+ reg = in_be32(&im_cpmux->cmx_scr);
+ out_be32(&im_cpmux->cmx_scr, reg | CMXSCR_SC3);
}
static void __init mpc8272_ads_setup_arch(void)
@@ -150,6 +169,12 @@ static void __init mpc8272_ads_setup_arch(void)
clrbits32(&bcsr[3], BCSR3_FETHIEN2);
setbits32(&bcsr[3], BCSR3_FETH2_RST);
+ /* Enabling USB support in BCSR */
+ np = of_find_compatible_node(NULL, NULL, "fsl,qe_udc");
+ if (np != NULL) {
+ clrbits32(&bcsr[3], BCSR3_USB_EN);
+ clrbits32(&bcsr[3], BCSR3_USB_HI_SPEED);
+ }
iounmap(bcsr);
init_ioports();
diff --git a/arch/powerpc/platforms/82xx/pq2ads.h
b/arch/powerpc/platforms/82xx/pq2ads.h
index 984db42..d0e82e2 100644
--- a/arch/powerpc/platforms/82xx/pq2ads.h
+++ b/arch/powerpc/platforms/82xx/pq2ads.h
@@ -43,6 +43,9 @@
#define BCSR1_RS232_EN2 ((uint)0x01000000) /* 0 ==enable */
#define BCSR3_FETHIEN2 ((uint)0x10000000) /* 0 == enable*/
#define BCSR3_FETH2_RST ((uint)0x80000000) /* 0 == reset */
+#define BCSR3_USB_EN ((uint)0x80000000) /* 0 == enable*/
+#define BCSR3_USB_HI_SPEED ((uint)0x40000000) /* 0 == highspeed */
+#define BCSR3_USBVCC ((uint)0x20000000) /* 0 == disable */
/* cpm serial driver works with constants below */
--
1.5.5.1.248.g4b17
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@ozlabs.org
https://ozlabs.org/mailman/listinfo/linuxppc-dev
