Date: Fri, 8 Apr 2016 10:54:59 +0000 (UTC) From: Jared McNeill <jmcneill@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r297703 - head/sys/arm/allwinner Message-ID: <201604081054.u38Asx1N078619@repo.freebsd.org>
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Author: jmcneill Date: Fri Apr 8 10:54:59 2016 New Revision: 297703 URL: https://svnweb.freebsd.org/changeset/base/297703 Log: Add function for mapping SRAM-D area to USB0 (OTG) controller. Use a lower pass number to ensure that this driver is loaded before EMAC or OTG, regardless of the order of nodes in the DT. Modified: head/sys/arm/allwinner/a10_sramc.c head/sys/arm/allwinner/a10_sramc.h Modified: head/sys/arm/allwinner/a10_sramc.c ============================================================================== --- head/sys/arm/allwinner/a10_sramc.c Fri Apr 8 10:23:48 2016 (r297702) +++ head/sys/arm/allwinner/a10_sramc.c Fri Apr 8 10:54:59 2016 (r297703) @@ -52,6 +52,7 @@ __FBSDID("$FreeBSD$"); #include "a10_sramc.h" #define SRAM_CTL1_CFG 0x04 +#define CTL1_CFG_SRAMD_MAP_USB0 (1 << 0) struct a10_sramc_softc { struct resource *res; @@ -113,7 +114,8 @@ static driver_t a10_sramc_driver = { static devclass_t a10_sramc_devclass; -DRIVER_MODULE(a10_sramc, simplebus, a10_sramc_driver, a10_sramc_devclass, 0, 0); +EARLY_DRIVER_MODULE(a10_sramc, simplebus, a10_sramc_driver, a10_sramc_devclass, + 0, 0, BUS_PASS_RESOURCE + BUS_PASS_ORDER_EARLY); int a10_map_to_emac(void) @@ -131,3 +133,20 @@ a10_map_to_emac(void) return (0); } + +int +a10_map_to_otg(void) +{ + struct a10_sramc_softc *sc = a10_sramc_sc; + uint32_t reg_value; + + if (sc == NULL) + return (ENXIO); + + /* Map SRAM to OTG */ + reg_value = sramc_read_4(sc, SRAM_CTL1_CFG); + reg_value |= CTL1_CFG_SRAMD_MAP_USB0; + sramc_write_4(sc, SRAM_CTL1_CFG, reg_value); + + return (0); +} Modified: head/sys/arm/allwinner/a10_sramc.h ============================================================================== --- head/sys/arm/allwinner/a10_sramc.h Fri Apr 8 10:23:48 2016 (r297702) +++ head/sys/arm/allwinner/a10_sramc.h Fri Apr 8 10:54:59 2016 (r297703) @@ -30,5 +30,6 @@ #define _A10_SRAMC_H_ int a10_map_to_emac(void); +int a10_map_to_otg(void); #endif
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