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Tiva Ethernet: Add basic clock/power controls for Ethernet and internal PHY

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This commit is contained in:
Gregory Nutt 2014-12-31 11:40:01 -06:00
parent 448ab48f8d
commit f9775de8ca
2 changed files with 42 additions and 22 deletions
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44
arch/arm/src/tiva/tiva_enablepwr.h
View File

@ -151,8 +151,8 @@
/* μDMA Power Control */
#ifdef TIVA_SYSCON_PCDMA
# define tiva_udma_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCDMA,SYSCON_PCDMA_R0)
# define tiva_udma_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCDMA,SYSCON_PCDMA_R0)
# define tiva_udma_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCDMA,SYSCON_PCDMA_P0)
# define tiva_udma_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCDMA,SYSCON_PCDMA_P0)
#else
# define tiva_udma_enablepwr()
# define tiva_udma_disablepwr()
@ -161,8 +161,8 @@
/* EPI Power Control */
#ifdef TIVA_SYSCON_PCEPI
# define tiva_epi_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCEPI,SYSCON_PCEPI_R0)
# define tiva_epi_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCEPI,SYSCON_PCEPI_R0)
# define tiva_epi_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCEPI,SYSCON_PCEPI_P0)
# define tiva_epi_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCEPI,SYSCON_PCEPI_P0)
#else
# define tiva_epi_enablepwr()
# define tiva_epi_disablepwr()
@ -171,8 +171,8 @@
/* Hibernation Power Control */
#ifdef TIVA_SYSCON_PCHIB
# define tiva_hib_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCHIB,SYSCON_PCHIB_R0)
# define tiva_hib_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCHIB,SYSCON_PCHIB_R0)
# define tiva_hib_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCHIB,SYSCON_PCHIB_P0)
# define tiva_hib_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCHIB,SYSCON_PCHIB_P0)
#else
# define tiva_hib_enablepwr()
# define tiva_hib_disablepwr()
@ -261,8 +261,8 @@
/* USB Power Control */
#ifdef TIVA_SYSCON_PCUSB
# define tiva_usb_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCUSB,SYSCON_PCUSB_R0)
# define tiva_usb_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCUSB,SYSCON_PCUSB_R0)
# define tiva_usb_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCUSB,SYSCON_PCUSB_P0)
# define tiva_usb_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCUSB,SYSCON_PCUSB_P0)
#else
# define tiva_usb_enablepwr()
# define tiva_usb_disablepwr()
@ -271,8 +271,8 @@
/* Ethernet PHY Power Control */
#ifdef TIVA_SYSCON_PCEPHY
# define tiva_ephy_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCEPHY,SYSCON_PCEPHY_R0)
# define tiva_ephy_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCEPHY,SYSCON_PCEPHY_R0)
# define tiva_ephy_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCEPHY,SYSCON_PCEPHY_P0)
# define tiva_ephy_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCEPHY,SYSCON_PCEPHY_P0)
#else
# define tiva_ephy_enablepwr()
# define tiva_ephy_disablepwr()
@ -313,8 +313,8 @@
/* ACMP Power Control */
#ifdef TIVA_SYSCON_PCACMP
# define tiva_acmp_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCACMP,SYSCON_PCACMP_R0)
# define tiva_acmp_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCACMP,SYSCON_PCACMP_R0)
# define tiva_acmp_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCACMP,SYSCON_PCACMP_P0)
# define tiva_acmp_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCACMP,SYSCON_PCACMP_P0)
#else
# define tiva_acmp_enablepwr()
# define tiva_acmp_disablepwr()
@ -355,8 +355,8 @@
/* EEPROM Power Control */
#ifdef TIVA_SYSCON_PCEEPROM
# define tiva_eeprom_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCEEPROM,SYSCON_PCEEPROM_R0)
# define tiva_eeprom_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCEEPROM,SYSCON_PCEEPROM_R0)
# define tiva_eeprom_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCEEPROM,SYSCON_PCEEPROM_P0)
# define tiva_eeprom_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCEEPROM,SYSCON_PCEEPROM_P0)
#else
# define tiva_eeprom_enablepwr()
# define tiva_eeprom_disablepwr()
@ -389,8 +389,8 @@
/* CRC/Crypto Modules RunMode ClockGating Control */
#ifdef TIVA_SYSCON_PCCCM
# define tiva_ccm_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCCCM,SYSCON_PCCCM_R0)
# define tiva_ccm_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCCCM,SYSCON_PCCCM_R0)
# define tiva_ccm_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCCCM,SYSCON_PCCCM_P0)
# define tiva_ccm_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCCCM,SYSCON_PCCCM_P0)
#else
# define tiva_ccm_enablepwr()
# define tiva_ccm_disablepwr()
@ -399,8 +399,8 @@
/* LCD Controller Power Control */
#ifdef TIVA_SYSCON_PCLCD
# define tiva_lcd_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCLCD,SYSCON_PCLCD_R0)
# define tiva_lcd_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCLCD,SYSCON_PCLCD_R0)
# define tiva_lcd_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCLCD,SYSCON_PCLCD_P0)
# define tiva_lcd_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCLCD,SYSCON_PCLCD_P0)
#else
# define tiva_lcd_enablepwr()
# define tiva_lcd_disablepwr()
@ -409,8 +409,8 @@
/* 1-Wire Power Control */
#ifdef TIVA_SYSCON_PCOWIRE
# define tiva_owire_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCOWIRE,SYSCON_PCOWIRE_R0)
# define tiva_owire_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCOWIRE,SYSCON_PCOWIRE_R0)
# define tiva_owire_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCOWIRE,SYSCON_PCOWIRE_P0)
# define tiva_owire_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCOWIRE,SYSCON_PCOWIRE_P0)
#else
# define tiva_owire_enablepwr()
# define tiva_owire_disablepwr()
@ -419,8 +419,8 @@
/* Ethernet MAC Power Control */
#ifdef TIVA_SYSCON_PCEMAC
# define tiva_emac_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCEMAC,SYSCON_PCEMAC_R0)
# define tiva_emac_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCEMAC,SYSCON_PCEMAC_R0)
# define tiva_emac_enablepwr() tiva_enablepwr(TIVA_SYSCON_PCEMAC,SYSCON_PCEMAC_P0)
# define tiva_emac_disablepwr() tiva_disablepwr(TIVA_SYSCON_PCEMAC,SYSCON_PCEMAC_P0)
#else
# define tiva_emac_enablepwr()
# define tiva_emac_disablepwr()

20
arch/arm/src/tiva/tm4c_ethernet.c
View File

@ -3369,6 +3369,20 @@ int tiva_ethinitialize(int intf)
priv->txpoll = wd_create(); /* Create periodic poll timer */
priv->txtimeout = wd_create(); /* Create TX timeout timer */
/* Enable power and clocking to the Ethernet MAC
*
* - Enable Power: Applies power (only) to the UART peripheral. This is not
* an essential step since enabling clocking will also apply power. The
* only significance is that the EMAC state will be retained if the EMAC
* clocking is subsequently disabled.
* - Enable Clocking: Applies both power and clocking to the EMAC peripheral,
* bringing it a fully functional state.
*/
tiva_emac_enablepwr(); /* Ethernet MAC Power Control */
tiva_emac_enableclk(); /* Ethernet MAC Run Mode Clock Gating Control */
#ifdef CONFIG_TIVA_PHY_INTERNAL
/* Integrated PHY:
*
* "The Ethernet Controller Module and Integrated PHY receive two clock inputs:
@ -3386,9 +3400,15 @@ int tiva_ethinitialize(int intf)
* External PHY support is not yet implemented.
*/
/* Enable power and clocking to the Integrated PHY */
tiva_ephy_enablepwr(); /* Ethernet PHY Power Control */
tiva_ephy_enableclk(); /* Ethernet PHY Run Mode Clock Gating Control */
#else
/* Configure GPIO pins to support Ethernet */
tiva_ethgpioconfig(priv);
#endif
/* Attach the IRQ to the driver */