sunxi_sata.c revision 1.1.2.2
1 1.1.2.2 jdolecek /* $NetBSD: sunxi_sata.c,v 1.1.2.2 2017/12/03 11:35:56 jdolecek Exp $ */ 2 1.1.2.2 jdolecek 3 1.1.2.2 jdolecek /*- 4 1.1.2.2 jdolecek * Copyright (c) 2017 Jared McNeill <jmcneill (at) invisible.ca> 5 1.1.2.2 jdolecek * All rights reserved. 6 1.1.2.2 jdolecek * 7 1.1.2.2 jdolecek * Redistribution and use in source and binary forms, with or without 8 1.1.2.2 jdolecek * modification, are permitted provided that the following conditions 9 1.1.2.2 jdolecek * are met: 10 1.1.2.2 jdolecek * 1. Redistributions of source code must retain the above copyright 11 1.1.2.2 jdolecek * notice, this list of conditions and the following disclaimer. 12 1.1.2.2 jdolecek * 2. Redistributions in binary form must reproduce the above copyright 13 1.1.2.2 jdolecek * notice, this list of conditions and the following disclaimer in the 14 1.1.2.2 jdolecek * documentation and/or other materials provided with the distribution. 15 1.1.2.2 jdolecek * 16 1.1.2.2 jdolecek * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 1.1.2.2 jdolecek * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 1.1.2.2 jdolecek * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 1.1.2.2 jdolecek * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 1.1.2.2 jdolecek * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 1.1.2.2 jdolecek * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 1.1.2.2 jdolecek * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 1.1.2.2 jdolecek * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 1.1.2.2 jdolecek * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 1.1.2.2 jdolecek * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 1.1.2.2 jdolecek * POSSIBILITY OF SUCH DAMAGE. 27 1.1.2.2 jdolecek */ 28 1.1.2.2 jdolecek 29 1.1.2.2 jdolecek #include <sys/cdefs.h> 30 1.1.2.2 jdolecek 31 1.1.2.2 jdolecek __KERNEL_RCSID(0, "$NetBSD: sunxi_sata.c,v 1.1.2.2 2017/12/03 11:35:56 jdolecek Exp $"); 32 1.1.2.2 jdolecek 33 1.1.2.2 jdolecek #include <sys/param.h> 34 1.1.2.2 jdolecek #include <sys/bus.h> 35 1.1.2.2 jdolecek #include <sys/device.h> 36 1.1.2.2 jdolecek #include <sys/intr.h> 37 1.1.2.2 jdolecek #include <sys/systm.h> 38 1.1.2.2 jdolecek 39 1.1.2.2 jdolecek #include <dev/ata/atavar.h> 40 1.1.2.2 jdolecek #include <dev/ic/ahcisatavar.h> 41 1.1.2.2 jdolecek 42 1.1.2.2 jdolecek #include <dev/fdt/fdtvar.h> 43 1.1.2.2 jdolecek 44 1.1.2.2 jdolecek static const char * compatible[] = { 45 1.1.2.2 jdolecek "allwinner,sun4i-a10-ahci", 46 1.1.2.2 jdolecek NULL 47 1.1.2.2 jdolecek }; 48 1.1.2.2 jdolecek 49 1.1.2.2 jdolecek #define SUNXI_SATA_DMACR(port) (0x170 + AHCI_P_OFFSET(port)) 50 1.1.2.2 jdolecek 51 1.1.2.2 jdolecek static void 52 1.1.2.2 jdolecek sunxi_sata_channel_start(struct ahci_softc *sc, struct ata_channel *chp) 53 1.1.2.2 jdolecek { 54 1.1.2.2 jdolecek const bus_size_t dma_reg = SUNXI_SATA_DMACR(chp->ch_channel); 55 1.1.2.2 jdolecek uint32_t val; 56 1.1.2.2 jdolecek 57 1.1.2.2 jdolecek val = AHCI_READ(sc, dma_reg); 58 1.1.2.2 jdolecek val &= ~0xff00; 59 1.1.2.2 jdolecek val |= 0x4400; 60 1.1.2.2 jdolecek AHCI_WRITE(sc, dma_reg, val); 61 1.1.2.2 jdolecek } 62 1.1.2.2 jdolecek 63 1.1.2.2 jdolecek static int 64 1.1.2.2 jdolecek sunxi_sata_match(device_t parent, cfdata_t cf, void *aux) 65 1.1.2.2 jdolecek { 66 1.1.2.2 jdolecek struct fdt_attach_args * const faa = aux; 67 1.1.2.2 jdolecek 68 1.1.2.2 jdolecek return of_match_compatible(faa->faa_phandle, compatible); 69 1.1.2.2 jdolecek } 70 1.1.2.2 jdolecek 71 1.1.2.2 jdolecek static void 72 1.1.2.2 jdolecek sunxi_sata_attach(device_t parent, device_t self, void *aux) 73 1.1.2.2 jdolecek { 74 1.1.2.2 jdolecek struct ahci_softc * const sc = device_private(self); 75 1.1.2.2 jdolecek struct fdt_attach_args * const faa = aux; 76 1.1.2.2 jdolecek const int phandle = faa->faa_phandle; 77 1.1.2.2 jdolecek char intrstr[128]; 78 1.1.2.2 jdolecek struct clk *clk; 79 1.1.2.2 jdolecek bus_addr_t addr; 80 1.1.2.2 jdolecek bus_size_t size; 81 1.1.2.2 jdolecek int i; 82 1.1.2.2 jdolecek 83 1.1.2.2 jdolecek if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) { 84 1.1.2.2 jdolecek aprint_error(": couldn't get registers\n"); 85 1.1.2.2 jdolecek return; 86 1.1.2.2 jdolecek } 87 1.1.2.2 jdolecek 88 1.1.2.2 jdolecek sc->sc_atac.atac_dev = self; 89 1.1.2.2 jdolecek sc->sc_dmat = faa->faa_dmat; 90 1.1.2.2 jdolecek sc->sc_ahcit = faa->faa_bst; 91 1.1.2.2 jdolecek sc->sc_ahcis = size; 92 1.1.2.2 jdolecek if (bus_space_map(sc->sc_ahcit, addr, size, 0, &sc->sc_ahcih) != 0) { 93 1.1.2.2 jdolecek aprint_error(": couldn't map registers\n"); 94 1.1.2.2 jdolecek return; 95 1.1.2.2 jdolecek } 96 1.1.2.2 jdolecek sc->sc_ahci_ports = 1; 97 1.1.2.2 jdolecek sc->sc_ahci_quirks = AHCI_QUIRK_BADPMP; 98 1.1.2.2 jdolecek sc->sc_save_init_data = true; 99 1.1.2.2 jdolecek sc->sc_channel_start = sunxi_sata_channel_start; 100 1.1.2.2 jdolecek 101 1.1.2.2 jdolecek if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) { 102 1.1.2.2 jdolecek aprint_error(": failed to decode interrupt\n"); 103 1.1.2.2 jdolecek return; 104 1.1.2.2 jdolecek } 105 1.1.2.2 jdolecek 106 1.1.2.2 jdolecek for (i = 0; (clk = fdtbus_clock_get_index(phandle, i)) != NULL; i++) 107 1.1.2.2 jdolecek if (clk_enable(clk) != 0) { 108 1.1.2.2 jdolecek aprint_error(": couldn't enable clock #%d\n", i); 109 1.1.2.2 jdolecek return; 110 1.1.2.2 jdolecek } 111 1.1.2.2 jdolecek 112 1.1.2.2 jdolecek aprint_naive("\n"); 113 1.1.2.2 jdolecek aprint_normal(": SATA\n"); 114 1.1.2.2 jdolecek 115 1.1.2.2 jdolecek if (fdtbus_intr_establish(phandle, 0, IPL_BIO, 0, ahci_intr, sc) == NULL) { 116 1.1.2.2 jdolecek aprint_error_dev(self, "failed to establish interrupt on %s\n", intrstr); 117 1.1.2.2 jdolecek return; 118 1.1.2.2 jdolecek } 119 1.1.2.2 jdolecek aprint_normal_dev(self, "interrupting on %s\n", intrstr); 120 1.1.2.2 jdolecek 121 1.1.2.2 jdolecek ahci_attach(sc); 122 1.1.2.2 jdolecek } 123 1.1.2.2 jdolecek 124 1.1.2.2 jdolecek CFATTACH_DECL_NEW(sunxi_sata, sizeof(struct ahci_softc), 125 1.1.2.2 jdolecek sunxi_sata_match, sunxi_sata_attach, NULL, NULL); 126
Indexes created Sat Oct 11 19:10:01 GMT 2025