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phy: phy-brcm-usb-init: Some Low Speed keyboards fail on 7271

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Enable the the Low Speed Keep Alive signal on the 7271b0 by setting
the LS_KEEP_ALIVE bit in the USB CTRL OBRIDGE register otherwise
some Dell Low Speed keyboards fail.

Also do a little cleanup of the EBRIDGE ESTOP_SCB_REQ bit. Since
this is only used on one platform, remove it from the platform
tables and just use "if (family == ").

Fixes: 49859e55e3 ("phy: usb: phy-brcm-usb: Add Broadcom STB USB phy driver")
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Al Cooper 2017-12-27 14:28:49 -05:00 committed by Kishon Vijay Abraham I
parent 5e498ff117
commit 279a0cd0e0
1 changed files with 7 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/phy/broadcom/phy-brcm-usb-init.c
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@ -50,6 +50,8 @@
#define USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK 0x80000000 /* option */
#define USB_CTRL_EBRIDGE 0x0c
#define USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK 0x00020000 /* option */
#define USB_CTRL_OBRIDGE 0x10
#define USB_CTRL_OBRIDGE_LS_KEEP_ALIVE_MASK 0x08000000
#define USB_CTRL_MDIO 0x14
#define USB_CTRL_MDIO2 0x18
#define USB_CTRL_UTMI_CTL_1 0x2c
@ -116,7 +118,6 @@ enum {
USB_CTRL_SETUP_STRAP_IPP_SEL_SELECTOR,
USB_CTRL_SETUP_OC3_DISABLE_SELECTOR,
USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_SELECTOR,
USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_SELECTOR,
USB_CTRL_USB_PM_BDC_SOFT_RESETB_SELECTOR,
USB_CTRL_USB_PM_XHC_SOFT_RESETB_SELECTOR,
USB_CTRL_USB_PM_USB_PWRDN_SELECTOR,
@ -203,7 +204,6 @@ usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
USB_CTRL_SETUP_OC3_DISABLE_MASK,
0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK,
0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_USB_PWRDN_MASK,
@ -225,7 +225,6 @@ usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
USB_CTRL_SETUP_OC3_DISABLE_MASK,
USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK,
0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
@ -247,7 +246,6 @@ usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
USB_CTRL_SETUP_OC3_DISABLE_MASK,
0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK,
USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_USB_PWRDN_MASK,
@ -269,7 +267,6 @@ usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
USB_CTRL_SETUP_OC3_DISABLE_MASK,
USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK,
0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
@ -291,7 +288,6 @@ usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
USB_CTRL_SETUP_OC3_DISABLE_MASK,
0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK,
0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
USB_CTRL_USB_PM_USB_PWRDN_MASK,
@ -313,7 +309,6 @@ usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
0, /* USB_CTRL_SETUP_OC3_DISABLE_MASK */
USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
0, /* USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK */
0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
@ -335,7 +330,6 @@ usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
USB_CTRL_SETUP_OC3_DISABLE_MASK,
0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
0, /* USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK */
USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_USB_PWRDN_MASK,
@ -357,7 +351,6 @@ usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
USB_CTRL_SETUP_OC3_DISABLE_MASK,
USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
0, /* USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK */
0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */
0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
@ -379,7 +372,6 @@ usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
USB_CTRL_SETUP_OC3_DISABLE_MASK,
0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK,
USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_USB_PWRDN_MASK,
@ -401,7 +393,6 @@ usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
USB_CTRL_SETUP_OC3_DISABLE_MASK,
0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK,
USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
USB_CTRL_USB_PM_USB_PWRDN_MASK,
@ -952,13 +943,17 @@ void brcm_usb_init_eohci(struct brcm_usb_init_params *params)
* Don't enable this so the memory controller doesn't read
* into memory holes. NOTE: This bit is low true on 7366C0.
*/
USB_CTRL_SET_FAMILY(params, EBRIDGE, ESTOP_SCB_REQ);
USB_CTRL_SET(ctrl, EBRIDGE, ESTOP_SCB_REQ);
/* Setup the endian bits */
reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP));
reg &= ~USB_CTRL_SETUP_ENDIAN_BITS;
reg |= USB_CTRL_MASK_FAMILY(params, SETUP, ENDIAN);
brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
if (params->selected_family == BRCM_FAMILY_7271A0)
/* Enable LS keep alive fix for certain keyboards */
USB_CTRL_SET(ctrl, OBRIDGE, LS_KEEP_ALIVE);
}
void brcm_usb_init_xhci(struct brcm_usb_init_params *params)