Aaron Durbin (adurbin@google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4916
-gerrit
commit 62459604237a9486aa8573f2f9d3698afc353702 Author: Duncan Laurie dlaurie@chromium.org Date: Thu Oct 31 08:20:48 2013 -0700
baytrail: Add IOSF functions for USBPHY and USHPHY
These are needed for USB2 and USB3 PHY init sequences.
BUG=chrome-os-partner:23635 BRANCH=rambi TEST=emerge-rambi chromeos-coreboot-rambi
Change-Id: Id284d882034e15eceeaa910b8b73bc0d8d895199 Signed-off-by: Duncan Laurie dlaurie@chromium.org Reviewed-on: https://chromium-review.googlesource.com/175227 Reviewed-by: Aaron Durbin adurbin@chromium.org Signed-off-by: Aaron Durbin adurbin@chromium.org --- src/soc/intel/baytrail/baytrail/iosf.h | 7 ++++++ src/soc/intel/baytrail/iosf.c | 44 ++++++++++++++++++++++++++++++++++ 2 files changed, 51 insertions(+)
diff --git a/src/soc/intel/baytrail/baytrail/iosf.h b/src/soc/intel/baytrail/baytrail/iosf.h index 7f0c7f5..b234552 100644 --- a/src/soc/intel/baytrail/baytrail/iosf.h +++ b/src/soc/intel/baytrail/baytrail/iosf.h @@ -64,6 +64,10 @@ uint32_t iosf_dunit_ch0_read(int reg); uint32_t iosf_dunit_ch1_read(int reg); uint32_t iosf_punit_read(int reg); void iosf_punit_write(int reg, uint32_t val); +uint32_t iosf_usbphy_read(int reg); +void iosf_usbphy_write(int reg, uint32_t val); +uint32_t iosf_ushphy_read(int reg); +void iosf_ushphy_write(int reg, uint32_t val);
/* IOSF ports. */ #define IOSF_PORT_AUNIT 0x00 /* IO Arbiter unit */ @@ -76,6 +80,7 @@ void iosf_punit_write(int reg, uint32_t val); #define IOSF_PORT_DUNIT_CH1 0x07 /* DUNIT Channel 1 */ #define IOSF_PORT_SYSMEMIO 0x0c /* System Memory IO */ #define IOSF_PORT_USBPHY 0x43 /* USB PHY */ +#define IOSF_PORT_USHPHY 0x61 /* USB XHCI PHY */ #define IOSF_PORT_SATAPHY 0xa3 /* SATA PHY */ #define IOSF_PORT_PCIEPHY 0xa3 /* PCIE PHY */
@@ -96,6 +101,8 @@ void iosf_punit_write(int reg, uint32_t val); #define IOSF_OP_WRITE_SYSMEMIO (IOSF_OP_READ_SYSMEMIO | 1) #define IOSF_OP_READ_USBPHY 0x06 #define IOSF_OP_WRITE_USBPHY (IOSF_OP_READ_USBPHY | 1) +#define IOSF_OP_READ_USHPHY 0x06 +#define IOSF_OP_WRITE_USHPHY (IOSF_OP_READ_USHPHY | 1) #define IOSF_OP_READ_SATAPHY 0x00 #define IOSF_OP_WRITE_SATAPHY (IOSF_OP_READ_SATAPHY | 1) #define IOSF_OP_READ_PCIEPHY 0x00 diff --git a/src/soc/intel/baytrail/iosf.c b/src/soc/intel/baytrail/iosf.c index b050eba..7d420cc 100644 --- a/src/soc/intel/baytrail/iosf.c +++ b/src/soc/intel/baytrail/iosf.c @@ -121,3 +121,47 @@ void iosf_punit_write(int reg, uint32_t val) write_iosf_reg(MCRX_REG, IOSF_REG_UPPER(reg)); write_iosf_reg(MCR_REG, cr); } + +uint32_t iosf_usbphy_read(int reg) +{ + uint32_t cr = IOSF_OPCODE(IOSF_OP_READ_USBPHY) | + IOSF_PORT(IOSF_PORT_USBPHY) | IOSF_REG(reg) | + IOSF_BYTE_EN; + + write_iosf_reg(MCRX_REG, IOSF_REG_UPPER(reg)); + write_iosf_reg(MCR_REG, cr); + return read_iosf_reg(MDR_REG); +} + +void iosf_usbphy_write(int reg, uint32_t val) +{ + uint32_t cr = IOSF_OPCODE(IOSF_OP_WRITE_USBPHY) | + IOSF_PORT(IOSF_PORT_USBPHY) | IOSF_REG(reg) | + IOSF_BYTE_EN; + + write_iosf_reg(MDR_REG, val); + write_iosf_reg(MCRX_REG, IOSF_REG_UPPER(reg)); + write_iosf_reg(MCR_REG, cr); +} + +uint32_t iosf_ushphy_read(int reg) +{ + uint32_t cr = IOSF_OPCODE(IOSF_OP_READ_USHPHY) | + IOSF_PORT(IOSF_PORT_USHPHY) | IOSF_REG(reg) | + IOSF_BYTE_EN; + + write_iosf_reg(MCRX_REG, IOSF_REG_UPPER(reg)); + write_iosf_reg(MCR_REG, cr); + return read_iosf_reg(MDR_REG); +} + +void iosf_ushphy_write(int reg, uint32_t val) +{ + uint32_t cr = IOSF_OPCODE(IOSF_OP_WRITE_USHPHY) | + IOSF_PORT(IOSF_PORT_USHPHY) | IOSF_REG(reg) | + IOSF_BYTE_EN; + + write_iosf_reg(MDR_REG, val); + write_iosf_reg(MCRX_REG, IOSF_REG_UPPER(reg)); + write_iosf_reg(MCR_REG, cr); +}