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powerpc/85xx: Update USB device tree status based on pin settings

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For P3060 and P4080, USB pins are multiplexed with other functions.
Update the device tree status for USB ports based on setting of
RCW[EC1] & RCW[EC2] which describe if pins are muxed to usb.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Shengzhou Liu 2011-10-14 16:26:06 +08:00 committed by Kumar Gala
parent 2a523f5240
commit f81f19fafa
1 changed files with 23 additions and 0 deletions
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23
arch/powerpc/cpu/mpc85xx/fdt.c
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@ -537,6 +537,27 @@ void fdt_fixup_fman_firmware(void *blob)
#define fdt_fixup_fman_firmware(x)
#endif
#if defined(CONFIG_PPC_P4080) || defined(CONFIG_PPC_P3060)
static void fdt_fixup_usb(void *fdt)
{
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
u32 rcwsr11 = in_be32(&gur->rcwsr[11]);
int off;
off = fdt_node_offset_by_compatible(fdt, -1, "fsl,mpc85xx-usb2-mph");
if ((rcwsr11 & FSL_CORENET_RCWSR11_EC1) !=
FSL_CORENET_RCWSR11_EC1_FM1_USB1)
fdt_status_disabled(fdt, off);
off = fdt_node_offset_by_compatible(fdt, -1, "fsl,mpc85xx-usb2-dr");
if ((rcwsr11 & FSL_CORENET_RCWSR11_EC2) !=
FSL_CORENET_RCWSR11_EC2_USB2)
fdt_status_disabled(fdt, off);
}
#else
#define fdt_fixup_usb(x)
#endif
void ft_cpu_setup(void *blob, bd_t *bd)
{
int off;
@ -641,6 +662,8 @@ void ft_cpu_setup(void *blob, bd_t *bd)
do_fixup_by_compat_u32(blob, "fsl,flexcan-v1.0",
"clock_freq", gd->bus_clk, 1);
fdt_fixup_usb(blob);
}
/*