Author: adrian Date: Thu May 26 00:43:08 2016 New Revision: 300702 URL: https://svnweb.freebsd.org/changeset/base/300702
Log: [bhnd] Integrate bhnd_chipc's BUS_ADD_CHILD() with a child resource mapping table. This adds support for automatically configuring bhnd_chipc bus children with associated resources, using an internal 'hints' table based directly on Michael Zhilin's chipc resource mapping work. The bhnd_sprom_chipc driver has been converted to use DEVICE_IDENTIFY() with the new resource table. This should be nearly drop-in compatible with the child device drivers in D6250. Submitted by: Landon Fuller <land...@landonf.org> Reviewed by: Michael Zhilin <miz...@gmail.com> Differential Revision: https://reviews.freebsd.org/D6525 Modified: head/sys/dev/bhnd/cores/chipc/bhnd_sprom_chipc.c head/sys/dev/bhnd/cores/chipc/chipc.c head/sys/dev/bhnd/cores/chipc/chipcreg.h Modified: head/sys/dev/bhnd/cores/chipc/bhnd_sprom_chipc.c ============================================================================== --- head/sys/dev/bhnd/cores/chipc/bhnd_sprom_chipc.c Thu May 26 00:03:23 2016 (r300701) +++ head/sys/dev/bhnd/cores/chipc/bhnd_sprom_chipc.c Thu May 26 00:43:08 2016 (r300702) @@ -46,9 +46,23 @@ __FBSDID("$FreeBSD$"); #include <dev/bhnd/nvram/bhnd_nvram.h> #include <dev/bhnd/nvram/bhnd_spromvar.h> -#include "bhnd_chipc_if.h" #include "bhnd_nvram_if.h" +#include "chipc.h" + +static void +chipc_sprom_identify(driver_t *driver, device_t parent) +{ + if (bhnd_chipc_nvram_src(parent) != BHND_NVRAM_SRC_SPROM) + return; + + if (device_find_child(parent, "bhnd_nvram", 0) != NULL) + return; + + if (BUS_ADD_CHILD(parent, 0, "bhnd_nvram", 0) == NULL) + device_printf(parent, "add bhnd_nvram failed\n"); +} + static int chipc_sprom_probe(device_t dev) { @@ -87,6 +101,7 @@ chipc_sprom_attach(device_t dev) static device_method_t chipc_sprom_methods[] = { /* Device interface */ + DEVMETHOD(device_identify, chipc_sprom_identify), DEVMETHOD(device_probe, chipc_sprom_probe), DEVMETHOD(device_attach, chipc_sprom_attach), DEVMETHOD_END Modified: head/sys/dev/bhnd/cores/chipc/chipc.c ============================================================================== --- head/sys/dev/bhnd/cores/chipc/chipc.c Thu May 26 00:03:23 2016 (r300701) +++ head/sys/dev/bhnd/cores/chipc/chipc.c Thu May 26 00:43:08 2016 (r300702) @@ -98,6 +98,32 @@ static struct bhnd_device_quirk chipc_qu BHND_DEVICE_QUIRK_END }; + +static const struct chipc_hint { + const char *name; + int unit; + int type; + int rid; + rman_res_t base; /* relative to parent resource */ + rman_res_t size; + u_int port; /* ignored if SYS_RES_IRQ */ + u_int region; +} chipc_hints[] = { + // FIXME: cfg/spi port1.1 mapping on siba(4) SoCs + /* device unit type rid base size port,region */ + { "bhnd_nvram", 0, SYS_RES_MEMORY, 0, CHIPC_SPROM_OTP, CHIPC_SPROM_OTP_SIZE, 0,0 }, + { "uart", 0, SYS_RES_MEMORY, 0, CHIPC_UART0_BASE, CHIPC_UART_SIZE, 0,0 }, + { "uart", 0, SYS_RES_IRQ, 0, 0, RM_MAX_END }, + { "uart", 1, SYS_RES_MEMORY, 0, CHIPC_UART1_BASE, CHIPC_UART_SIZE, 0,0 }, + { "uart", 1, SYS_RES_IRQ, 0, 0, RM_MAX_END }, + { "spi", 0, SYS_RES_MEMORY, 0, 0, RM_MAX_END, 1,1 }, + { "spi", 0, SYS_RES_MEMORY, 1, CHIPC_SFLASH_BASE, CHIPC_SFLASH_SIZE, 0,0 }, + { "cfi", 0, SYS_RES_MEMORY, 0, 0, RM_MAX_END, 1,1}, + { "cfi", 0, SYS_RES_MEMORY, 1, CHIPC_SFLASH_BASE, CHIPC_SFLASH_SIZE, 0,0 }, + { NULL } +}; + + static int chipc_try_activate_resource( struct chipc_softc *sc, device_t child, int type, int rid, struct resource *r, @@ -106,7 +132,6 @@ static int chipc_try_activate_resourc static int chipc_read_caps(struct chipc_softc *sc, struct chipc_caps *caps); -static int chipc_nvram_attach(struct chipc_softc *sc); static bhnd_nvram_src_t chipc_nvram_identify(struct chipc_softc *sc); static bool chipc_should_enable_sprom( struct chipc_softc *sc); @@ -210,12 +235,11 @@ chipc_attach(device_t dev) if (bootverbose) chipc_print_caps(sc->dev, &sc->caps); - /* Identify NVRAM source and add child device. */ + /* Identify NVRAM source */ sc->nvram_src = chipc_nvram_identify(sc); - if ((error = chipc_nvram_attach(sc))) - goto failed; - /* Standard bus probe */ + /* Probe and attach children */ + bus_generic_probe(dev); if ((error = bus_generic_attach(dev))) goto failed; @@ -335,51 +359,6 @@ chipc_read_caps(struct chipc_softc *sc, } /** - * If supported, add an appropriate NVRAM child device. - */ -static int -chipc_nvram_attach(struct chipc_softc *sc) -{ - device_t nvram_dev; - rman_res_t start; - int error; - - switch (sc->nvram_src) { - case BHND_NVRAM_SRC_OTP: - // TODO OTP support - device_printf(sc->dev, "OTP nvram source unsupported\n"); - return (0); - - case BHND_NVRAM_SRC_SPROM: - /* Add OTP/SPROM device */ - nvram_dev = BUS_ADD_CHILD(sc->dev, 0, "bhnd_nvram", -1); - if (nvram_dev == NULL) { - device_printf(sc->dev, "failed to add NVRAM device\n"); - return (ENXIO); - } - - start = rman_get_start(sc->core->res) + CHIPC_SPROM_OTP; - error = bus_set_resource(nvram_dev, SYS_RES_MEMORY, 0, start, - CHIPC_SPROM_OTP_SIZE); - return (error); - - case BHND_NVRAM_SRC_FLASH: - // TODO flash support - device_printf(sc->dev, "flash nvram source unsupported\n"); - return (0); - - case BHND_NVRAM_SRC_UNKNOWN: - /* Handled externally */ - return (0); - - default: - device_printf(sc->dev, "invalid nvram source: %u\n", - sc->nvram_src); - return (ENXIO); - } -} - -/** * Determine the NVRAM data source for this device. * * @param sc chipc driver state. @@ -500,7 +479,9 @@ static device_t chipc_add_child(device_t dev, u_int order, const char *name, int unit) { struct chipc_devinfo *dinfo; + const struct chipc_hint *hint; device_t child; + int error; child = device_add_child_ordered(dev, order, name, unit); if (child == NULL) @@ -513,10 +494,81 @@ chipc_add_child(device_t dev, u_int orde } resource_list_init(&dinfo->resources); - device_set_ivars(child, dinfo); + /* Hint matching requires a device name */ + if (name == NULL) + return (child); + + /* Use hint table to set child resources */ + for (hint = chipc_hints; hint->name != NULL; hint++) { + bhnd_addr_t region_addr; + bhnd_size_t region_size; + + if (strcmp(hint->name, name) != 0) + continue; + + switch (hint->type) { + case SYS_RES_IRQ: + /* Add child resource */ + error = bus_set_resource(child, hint->type, hint->rid, + hint->base, hint->size); + if (error) { + device_printf(dev, + "bus_set_resource() failed for %s: %d\n", + device_get_nameunit(child), error); + goto failed; + } + break; + + case SYS_RES_MEMORY: + /* Fetch region address and size */ + error = bhnd_get_region_addr(dev, BHND_PORT_DEVICE, + hint->port, hint->region, ®ion_addr, + ®ion_size); + if (error) { + device_printf(dev, + "lookup of %s%u.%u failed: %d\n", + bhnd_port_type_name(BHND_PORT_DEVICE), + hint->port, hint->region, error); + goto failed; + } + + /* Verify requested range is mappable */ + if (hint->base > region_size || + hint->size > region_size || + region_size - hint->base < hint->size ) + { + device_printf(dev, + "%s%u.%u region cannot map requested range " + "%#jx+%#jx\n", + bhnd_port_type_name(BHND_PORT_DEVICE), + hint->port, hint->region, hint->base, + hint->size); + } + + /* Add child resource */ + error = bus_set_resource(child, hint->type, + hint->rid, region_addr + hint->base, hint->size); + if (error) { + device_printf(dev, + "bus_set_resource() failed for %s: %d\n", + device_get_nameunit(child), error); + goto failed; + } + break; + default: + device_printf(child, "unknown hint resource type: %d\n", + hint->type); + break; + } + } + return (child); + +failed: + device_delete_child(dev, child); + return (NULL); } static void Modified: head/sys/dev/bhnd/cores/chipc/chipcreg.h ============================================================================== --- head/sys/dev/bhnd/cores/chipc/chipcreg.h Thu May 26 00:03:23 2016 (r300701) +++ head/sys/dev/bhnd/cores/chipc/chipcreg.h Thu May 26 00:43:08 2016 (r300702) @@ -61,6 +61,8 @@ #define CHIPC_JTAGDR 0x38 #define CHIPC_JTAGCTRL 0x3c +#define CHIPC_SFLASH_BASE 0x40 +#define CHIPC_SFLASH_SIZE 12 #define CHIPC_SFLASHCTRL 0x40 #define CHIPC_SFLASHADDR 0x44 #define CHIPC_SFLASHDATA 0x48 @@ -171,11 +173,15 @@ #define CHIPC_CLK_CTL_ST 0x1E0 #define CHIPC_SPROM_HWWAR 0x19 -#define CHIPC_UART0 0x300 -#define CHIPC_UART1 0x400 +#define CHIPC_UART_BASE 0x300 +#define CHIPC_UART_SIZE 0x100 +#define CHIPC_UART0_BASE CHIPC_UART_BASE +#define CHIPC_UART1_BASE (CHIPC_UART_BASE + CHIPC_UART_SIZE) /* PMU registers (rev >= 20) */ #define CHIPC_PMU_BASE 0x600 +#define CHIPC_PMU_SIZE 0x70 + #define CHIPC_PMU_CTRL 0x600 #define CHIPC_PMU_CAP 0x604 #define CHIPC_PMU_ST 0x608 _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
