static void omap4_tuna_init_hw_rev(void)
{
int ret;
int i;
u32 r;
/* Disable weak driver pulldown on usbb2_hsic_strobe */
r = omap4_ctrl_pad_readl(OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_USBB_HSIC);
r &= ~OMAP4_USBB2_HSIC_STROBE_WD_MASK;
omap4_ctrl_pad_writel(r, OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_USBB_HSIC);
ret = gpio_request_array(tuna_hw_rev_gpios,
ARRAY_SIZE(tuna_hw_rev_gpios));
BUG_ON(ret);
for (i = 0; i < ARRAY_SIZE(tuna_hw_rev_gpios); i++)
tuna_hw_rev |= gpio_get_value(tuna_hw_rev_gpios[i].gpio) << i;
snprintf(omap4_tuna_bd_info_string,
ARRAY_SIZE(omap4_tuna_bd_info_string),
"Tuna HW revision: %02x (%s), cpu %s ES%d.%d ",
tuna_hw_rev,
omap4_tuna_hw_rev_name(),
cpu_is_omap443x() ? "OMAP4430" : "OMAP4460",
(GET_OMAP_REVISION() >> 4) & 0xf,
GET_OMAP_REVISION() & 0xf);
pr_info("%s\n", omap4_tuna_bd_info_string);
mach_panic_string = omap4_tuna_bd_info_string;
}
static void gnex_get_revision(void) {
size_t i;
int revision = 0;
static unsigned gpios[] = {
76,
75,
74,
73,
170,
};
unsigned r;
//disable usb HSIC pullup
r = readl(CONTROL_PADCONF_CORE + 0x5c4);
r &= ~(3 << 14);
writel(r, CONTROL_PADCONF_CORE + 0x5c4);
for (i = 0; i < ARRAY_SIZE(gpios); i++) {
gpio_direction_input(gpios[i]);
revision |= (!!gpio_get_value(gpios[i])) << i;
}
tuna_hw_rev = revision;
printf("Tuna revision %d: %s\n",
tuna_hw_rev, omap4_tuna_hw_rev_name());
}
int do_tuna_print_revision(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[])
{
gnex_get_revision();
const char *rev_name = omap4_tuna_hw_rev_name();
if (!rev_name) {
return -1;
}
return 0;
}
