diff options
Diffstat (limited to 'src/mainboard/google/gru/mainboard.c')
| -rw-r--r-- | src/mainboard/google/gru/mainboard.c | 50 |
1 files changed, 22 insertions, 28 deletions
diff --git a/src/mainboard/google/gru/mainboard.c b/src/mainboard/google/gru/mainboard.c index b8a3e5521a..74c83bcded 100644 --- a/src/mainboard/google/gru/mainboard.c +++ b/src/mainboard/google/gru/mainboard.c @@ -14,6 +14,7 @@ * */ +#include <assert.h> #include <boardid.h> #include <console/console.h> #include <delay.h> @@ -242,20 +243,20 @@ static void usb_power_cycle(int port) printk(BIOS_ERR, "ERROR: Cannot restore USB%d PD mode\n", port); } -static void setup_usb(void) +static void setup_usb(int port) { + /* Must be PHY0 or PHY1. */ + assert(port == 0 || port == 1); + /* * A few magic PHY tuning values that improve eye diagram amplitude * and make it extra sure we get reliable communication in firmware * Set max ODT compensation voltage and current tuning reference. */ - write32(&rk3399_grf->usbphy0_ctrl[3], RK_CLRSETBITS(0xfff, 0x2e3)); - write32(&rk3399_grf->usbphy1_ctrl[3], RK_CLRSETBITS(0xfff, 0x2e3)); + write32(&rk3399_grf->usbphy_ctrl[port][3], RK_CLRSETBITS(0xfff, 0x2e3)); /* Set max pre-emphasis level on PHY0 and PHY1. */ - write32(&rk3399_grf->usbphy0_ctrl[12], - RK_CLRSETBITS(0xffff, 0xa7)); - write32(&rk3399_grf->usbphy1_ctrl[12], + write32(&rk3399_grf->usbphy_ctrl[port][12], RK_CLRSETBITS(0xffff, 0xa7)); /* @@ -267,44 +268,37 @@ static void setup_usb(void) * 2. Configure PHY0 and PHY1 otg-ports squelch detection * threshold to 125mV (default is 150mV). */ - write32(&rk3399_grf->usbphy0_ctrl[0], - RK_CLRSETBITS(7 << 13 | 3 << 0, 6 << 13)); - write32(&rk3399_grf->usbphy1_ctrl[0], + write32(&rk3399_grf->usbphy_ctrl[port][0], RK_CLRSETBITS(7 << 13 | 3 << 0, 6 << 13)); - write32(&rk3399_grf->usbphy0_ctrl[13], RK_CLRBITS(3 << 0)); - write32(&rk3399_grf->usbphy1_ctrl[13], RK_CLRBITS(3 << 0)); + write32(&rk3399_grf->usbphy_ctrl[port][13], RK_CLRBITS(3 << 0)); /* * ODT auto compensation bypass, and set max driver * strength only for PHY0 and PHY1 otg-port. */ - write32(&rk3399_grf->usbphy0_ctrl[2], - RK_CLRSETBITS(0x7e << 4, 0x60 << 4)); - write32(&rk3399_grf->usbphy1_ctrl[2], + write32(&rk3399_grf->usbphy_ctrl[port][2], RK_CLRSETBITS(0x7e << 4, 0x60 << 4)); /* * ODT auto refresh bypass, and set the max bias current * tuning reference only for PHY0 and PHY1 otg-port. */ - write32(&rk3399_grf->usbphy0_ctrl[3], - RK_CLRSETBITS(0x21c, 1 << 4)); - write32(&rk3399_grf->usbphy1_ctrl[3], + write32(&rk3399_grf->usbphy_ctrl[port][3], RK_CLRSETBITS(0x21c, 1 << 4)); /* * ODT auto compensation bypass, and set default driver * strength only for PHY0 and PHY1 host-port. */ - write32(&rk3399_grf->usbphy0_ctrl[15], RK_SETBITS(1 << 10)); - write32(&rk3399_grf->usbphy1_ctrl[15], RK_SETBITS(1 << 10)); + write32(&rk3399_grf->usbphy_ctrl[port][15], RK_SETBITS(1 << 10)); /* ODT auto refresh bypass only for PHY0 and PHY1 host-port. */ - write32(&rk3399_grf->usbphy0_ctrl[16], RK_CLRBITS(1 << 9)); - write32(&rk3399_grf->usbphy1_ctrl[16], RK_CLRBITS(1 << 9)); + write32(&rk3399_grf->usbphy_ctrl[port][16], RK_CLRBITS(1 << 9)); - setup_usb_otg0(); - setup_usb_otg1(); + if (port == 0) + setup_usb_otg0(); + else + setup_usb_otg1(); /* * Need to power-cycle USB ports for use in firmware, since some devices @@ -312,10 +306,8 @@ static void setup_usb(void) * This takes about a dozen milliseconds, so only do it in boot modes * that have firmware UI (which one could select USB boot from). */ - if (display_init_required()) { - usb_power_cycle(0); - usb_power_cycle(1); - } + if (display_init_required()) + usb_power_cycle(port); } static void mainboard_init(device_t dev) @@ -325,7 +317,9 @@ static void mainboard_init(device_t dev) configure_emmc(); configure_codec(); configure_display(); - setup_usb(); + setup_usb(0); + if (!IS_ENABLED(CONFIG_BOARD_GOOGLE_SCARLET)) + setup_usb(1); register_reset_to_bl31(); register_poweroff_to_bl31(); register_gpio_suspend(); |