Module Name: src Committed By: jmcneill Date: Sun Mar 8 12:44:55 UTC 2015
Modified Files: src/sys/arch/arm/amlogic: amlogic_board.c amlogic_crureg.h amlogic_io.c amlogic_reg.h amlogic_var.h Added Files: src/sys/arch/arm/amlogic: amlogic_sdhc.c amlogic_sdhcreg.h Log Message: Add Amlogic SD/MMC driver. To generate a diff of this commit: cvs rdiff -u -r1.8 -r1.9 src/sys/arch/arm/amlogic/amlogic_board.c cvs rdiff -u -r1.6 -r1.7 src/sys/arch/arm/amlogic/amlogic_crureg.h cvs rdiff -u -r1.5 -r1.6 src/sys/arch/arm/amlogic/amlogic_io.c \ src/sys/arch/arm/amlogic/amlogic_var.h cvs rdiff -u -r1.7 -r1.8 src/sys/arch/arm/amlogic/amlogic_reg.h cvs rdiff -u -r0 -r1.1 src/sys/arch/arm/amlogic/amlogic_sdhc.c \ src/sys/arch/arm/amlogic/amlogic_sdhcreg.h Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/arch/arm/amlogic/amlogic_board.c diff -u src/sys/arch/arm/amlogic/amlogic_board.c:1.8 src/sys/arch/arm/amlogic/amlogic_board.c:1.9 --- src/sys/arch/arm/amlogic/amlogic_board.c:1.8 Sat Mar 7 21:32:47 2015 +++ src/sys/arch/arm/amlogic/amlogic_board.c Sun Mar 8 12:44:55 2015 @@ -1,4 +1,4 @@ -/* $NetBSD: amlogic_board.c,v 1.8 2015/03/07 21:32:47 jmcneill Exp $ */ +/* $NetBSD: amlogic_board.c,v 1.9 2015/03/08 12:44:55 jmcneill Exp $ */ /*- * Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca> @@ -29,7 +29,7 @@ #include "opt_amlogic.h" #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: amlogic_board.c,v 1.8 2015/03/07 21:32:47 jmcneill Exp $"); +__KERNEL_RCSID(0, "$NetBSD: amlogic_board.c,v 1.9 2015/03/08 12:44:55 jmcneill Exp $"); #define _ARM32_BUS_DMA_PRIVATE #include <sys/param.h> @@ -191,47 +191,47 @@ amlogic_eth_init(void) void amlogic_rng_init(void) { - printf("%s: GATING0 = %#x, GATING3 = %#x\n", __func__, - CBUS_READ(EE_CLK_GATING0_REG), CBUS_READ(EE_CLK_GATING3_REG)); - CBUS_WRITE(EE_CLK_GATING0_REG, CBUS_READ(EE_CLK_GATING0_REG) | EE_CLK_GATING0_RNG); CBUS_WRITE(EE_CLK_GATING3_REG, CBUS_READ(EE_CLK_GATING3_REG) | EE_CLK_GATING3_RNG); - - printf("%s: GATING0 = %#x, GATING3 = %#x\n", __func__, - CBUS_READ(EE_CLK_GATING0_REG), CBUS_READ(EE_CLK_GATING3_REG)); } void amlogic_sdhc_init(void) { - /* CARD -> SDHC pin mux settings */ - CBUS_SET_CLEAR(PERIPHS_PIN_MUX_5_REG, 0, 0x00007c00); - CBUS_SET_CLEAR(PERIPHS_PIN_MUX_4_REG, 0, 0x7c000000); - CBUS_SET_CLEAR(PERIPHS_PIN_MUX_2_REG, 0, 0x0000fc00); - CBUS_SET_CLEAR(PERIPHS_PIN_MUX_8_REG, 0, 0x00000600); - CBUS_SET_CLEAR(PERIPHS_PIN_MUX_2_REG, 0x000000f0, 0); - - const uint32_t pupd_mask = __BITS(25,20); /* CARD_0-CARD_5 */ - CBUS_SET_CLEAR(CBUS_REG(0x203c), pupd_mask, 0); /* PU/PD */ - CBUS_SET_CLEAR(CBUS_REG(0x204a), pupd_mask, 0); /* PU/PD-EN */ - - const uint32_t io_mask = __BITS(27,22); /* CARD_0-CARD_5 */ - CBUS_SET_CLEAR(CBUS_REG(0x200c), io_mask, 0); /* OEN */ - - /* XXX ODROID-C1 specific */ - const uint32_t pwr_mask = __BIT(31); /* CARD_8 */ - CBUS_SET_CLEAR(CBUS_REG(0x201c), 0, pwr_mask); /* O */ - CBUS_SET_CLEAR(CBUS_REG(0x201b), 0, pwr_mask); /* OEN */ - const uint32_t cd_mask = __BIT(29); - CBUS_SET_CLEAR(CBUS_REG(0x201b), cd_mask, 0); /* OEN */ - /* enable SDHC clk */ CBUS_WRITE(EE_CLK_GATING0_REG, CBUS_READ(EE_CLK_GATING0_REG) | EE_CLK_GATING0_SDHC); } +int +amlogic_sdhc_select_port(int port) +{ + switch (port) { + case AMLOGIC_SDHC_PORT_B: + /* CARD -> SDHC pin mux settings */ + CBUS_SET_CLEAR(PERIPHS_PIN_MUX_5_REG, 0, 0x00007c00); + CBUS_SET_CLEAR(PERIPHS_PIN_MUX_4_REG, 0, 0x7c000000); + CBUS_SET_CLEAR(PERIPHS_PIN_MUX_2_REG, 0, 0x0000fc00); + CBUS_SET_CLEAR(PERIPHS_PIN_MUX_8_REG, 0, 0x00000600); + CBUS_SET_CLEAR(PERIPHS_PIN_MUX_2_REG, 0x000000f0, 0); + break; + case AMLOGIC_SDHC_PORT_C: + /* BOOT -> SDHC pin mux settings */ + CBUS_SET_CLEAR(PERIPHS_PIN_MUX_2_REG, 0, 0x04c000f0); + CBUS_SET_CLEAR(PERIPHS_PIN_MUX_5_REG, 0, 0x00007c00); + CBUS_SET_CLEAR(PERIPHS_PIN_MUX_6_REG, 0, 0xff000000); + CBUS_SET_CLEAR(PERIPHS_PIN_MUX_4_REG, 0x70000000, 0); + CBUS_SET_CLEAR(PERIPHS_PIN_MUX_7_REG, 0x000c0000, 0); + break; + default: + return EINVAL; + } + + return 0; +} + static void amlogic_usbphy_clkgate_enable(int port) { Index: src/sys/arch/arm/amlogic/amlogic_crureg.h diff -u src/sys/arch/arm/amlogic/amlogic_crureg.h:1.6 src/sys/arch/arm/amlogic/amlogic_crureg.h:1.7 --- src/sys/arch/arm/amlogic/amlogic_crureg.h:1.6 Sat Mar 7 21:32:47 2015 +++ src/sys/arch/arm/amlogic/amlogic_crureg.h Sun Mar 8 12:44:55 2015 @@ -1,4 +1,4 @@ -/* $NetBSD: amlogic_crureg.h,v 1.6 2015/03/07 21:32:47 jmcneill Exp $ */ +/* $NetBSD: amlogic_crureg.h,v 1.7 2015/03/08 12:44:55 jmcneill Exp $ */ /*- * Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca> @@ -75,6 +75,8 @@ #define PREG_CTLREG0_ADDR_REG CBUS_REG(0x2000) #define PREG_CTLREG0_ADDR_CLKRATE __BITS(9,4) +#define PREG_PAD_GPIO0_EN_N_REG CBUS_REG(0x200c) + #define PERIPHS_PIN_MUX_0_REG CBUS_REG(0x202c) #define PERIPHS_PIN_MUX_1_REG CBUS_REG(0x202d) #define PERIPHS_PIN_MUX_2_REG CBUS_REG(0x202e) @@ -86,9 +88,25 @@ #define PERIPHS_PIN_MUX_8_REG CBUS_REG(0x2034) #define PERIPHS_PIN_MUX_9_REG CBUS_REG(0x2035) +#define PAD_PULL_UP_6_REG CBUS_REG(0x2039) +#define PAD_PULL_UP_0_REG CBUS_REG(0x203a) +#define PAD_PULL_UP_1_REG CBUS_REG(0x203b) +#define PAD_PULL_UP_2_REG CBUS_REG(0x203c) +#define PAD_PULL_UP_3_REG CBUS_REG(0x203d) +#define PAD_PULL_UP_4_REG CBUS_REG(0x203e) +#define PAD_PULL_UP_5_REG CBUS_REG(0x203f) + #define RAND64_ADDR0_REG CBUS_REG(0x2040) #define RAND64_ADDR1_REG CBUS_REG(0x2041) +#define PAD_PULL_UP_EN_0_REG CBUS_REG(0x2048) +#define PAD_PULL_UP_EN_1_REG CBUS_REG(0x2049) +#define PAD_PULL_UP_EN_2_REG CBUS_REG(0x204a) +#define PAD_PULL_UP_EN_3_REG CBUS_REG(0x204b) +#define PAD_PULL_UP_EN_4_REG CBUS_REG(0x204c) +#define PAD_PULL_UP_EN_5_REG CBUS_REG(0x204d) +#define PAD_PULL_UP_EN_6_REG CBUS_REG(0x204e) + #define PREI_USB_PHY_A_CFG_REG CBUS_REG(0x2200) #define PREI_USB_PHY_A_CTRL_REG CBUS_REG(0x2201) #define PREI_USB_PHY_A_ADP_BC_REG CBUS_REG(0x2203) Index: src/sys/arch/arm/amlogic/amlogic_io.c diff -u src/sys/arch/arm/amlogic/amlogic_io.c:1.5 src/sys/arch/arm/amlogic/amlogic_io.c:1.6 --- src/sys/arch/arm/amlogic/amlogic_io.c:1.5 Sat Mar 7 21:34:25 2015 +++ src/sys/arch/arm/amlogic/amlogic_io.c Sun Mar 8 12:44:55 2015 @@ -1,4 +1,4 @@ -/* $NetBSD: amlogic_io.c,v 1.5 2015/03/07 21:34:25 jmcneill Exp $ */ +/* $NetBSD: amlogic_io.c,v 1.6 2015/03/08 12:44:55 jmcneill Exp $ */ /*- * Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca> @@ -29,7 +29,7 @@ #include "opt_amlogic.h" #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: amlogic_io.c,v 1.5 2015/03/07 21:34:25 jmcneill Exp $"); +__KERNEL_RCSID(0, "$NetBSD: amlogic_io.c,v 1.6 2015/03/08 12:44:55 jmcneill Exp $"); #include <sys/param.h> #include <sys/systm.h> @@ -75,10 +75,10 @@ static const struct amlogic_locators aml AMLOGIC_USB1_OFFSET, AMLOGIC_USB_SIZE, 1, AMLOGIC_INTR_USB1 }, { "awge", AMLOGIC_GMAC_OFFSET, AMLOGIC_GMAC_SIZE, NOPORT, AMLOGIC_INTR_GMAC }, -#if notyet { "amlogicsdhc", - AMLOGIC_SDHC_OFFSET, AMLOGIC_SDHC_SIZE, 0, AMLOGIC_INTR_SDHC }, -#endif + AMLOGIC_SDHC_OFFSET, AMLOGIC_SDHC_SIZE, 1, AMLOGIC_INTR_SDHC }, + { "amlogicsdhc", + AMLOGIC_SDHC_OFFSET, AMLOGIC_SDHC_SIZE, 2, AMLOGIC_INTR_SDHC }, }; int Index: src/sys/arch/arm/amlogic/amlogic_var.h diff -u src/sys/arch/arm/amlogic/amlogic_var.h:1.5 src/sys/arch/arm/amlogic/amlogic_var.h:1.6 --- src/sys/arch/arm/amlogic/amlogic_var.h:1.5 Sat Mar 7 21:32:47 2015 +++ src/sys/arch/arm/amlogic/amlogic_var.h Sun Mar 8 12:44:55 2015 @@ -1,4 +1,4 @@ -/* $NetBSD: amlogic_var.h,v 1.5 2015/03/07 21:32:47 jmcneill Exp $ */ +/* $NetBSD: amlogic_var.h,v 1.6 2015/03/08 12:44:55 jmcneill Exp $ */ /*- * Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca> @@ -60,8 +60,12 @@ void amlogic_cpufreq_init(void); void amlogic_usbphy_init(int); void amlogic_eth_init(void); -void amlogic_sdhc_init(void); void amlogic_rng_init(void); +void amlogic_sdhc_init(void); + +int amlogic_sdhc_select_port(int); +#define AMLOGIC_SDHC_PORT_B 1 +#define AMLOGIC_SDHC_PORT_C 2 uint32_t amlogic_get_rate_xtal(void); uint32_t amlogic_get_rate_sys(void); Index: src/sys/arch/arm/amlogic/amlogic_reg.h diff -u src/sys/arch/arm/amlogic/amlogic_reg.h:1.7 src/sys/arch/arm/amlogic/amlogic_reg.h:1.8 --- src/sys/arch/arm/amlogic/amlogic_reg.h:1.7 Sat Mar 7 21:32:47 2015 +++ src/sys/arch/arm/amlogic/amlogic_reg.h Sun Mar 8 12:44:55 2015 @@ -1,4 +1,4 @@ -/* $NetBSD: amlogic_reg.h,v 1.7 2015/03/07 21:32:47 jmcneill Exp $ */ +/* $NetBSD: amlogic_reg.h,v 1.8 2015/03/08 12:44:55 jmcneill Exp $ */ /*- * Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca> @@ -55,6 +55,7 @@ #define AMLOGIC_AOBUS_OFFSET 0x08100000 +#define AMLOGIC_AO_RTI_PIN_MUX_OFFSET 0x08100014 #define AMLOGIC_GPIOAO_OFFSET 0x08100024 #define AMLOGIC_UART0AO_OFFSET 0x081004c0 Added files: Index: src/sys/arch/arm/amlogic/amlogic_sdhc.c diff -u /dev/null src/sys/arch/arm/amlogic/amlogic_sdhc.c:1.1 --- /dev/null Sun Mar 8 12:44:55 2015 +++ src/sys/arch/arm/amlogic/amlogic_sdhc.c Sun Mar 8 12:44:55 2015 @@ -0,0 +1,585 @@ +/* $NetBSD: amlogic_sdhc.c,v 1.1 2015/03/08 12:44:55 jmcneill Exp $ */ + +/*- + * Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "locators.h" + +#include <sys/cdefs.h> +__KERNEL_RCSID(0, "$NetBSD: amlogic_sdhc.c,v 1.1 2015/03/08 12:44:55 jmcneill Exp $"); + +#include <sys/param.h> +#include <sys/bus.h> +#include <sys/device.h> +#include <sys/intr.h> +#include <sys/systm.h> +#include <sys/kernel.h> + +#include <dev/sdmmc/sdmmcvar.h> +#include <dev/sdmmc/sdmmcchip.h> +#include <dev/sdmmc/sdmmc_ioreg.h> + +#include <arm/amlogic/amlogic_reg.h> +#include <arm/amlogic/amlogic_sdhcreg.h> +#include <arm/amlogic/amlogic_var.h> + +static int amlogic_sdhc_match(device_t, cfdata_t, void *); +static void amlogic_sdhc_attach(device_t, device_t, void *); +static void amlogic_sdhc_attach_i(device_t); + +static int amlogic_sdhc_intr(void *); + +struct amlogic_sdhc_softc { + device_t sc_dev; + bus_space_tag_t sc_bst; + bus_space_handle_t sc_bsh; + bus_dma_tag_t sc_dmat; + void *sc_ih; + + device_t sc_sdmmc_dev; + kmutex_t sc_intr_lock; + kcondvar_t sc_intr_cv; + + uint32_t sc_intr_ista; +}; + +CFATTACH_DECL_NEW(amlogic_sdhc, sizeof(struct amlogic_sdhc_softc), + amlogic_sdhc_match, amlogic_sdhc_attach, NULL, NULL); + +static int amlogic_sdhc_host_reset(sdmmc_chipset_handle_t); +static uint32_t amlogic_sdhc_host_ocr(sdmmc_chipset_handle_t); +static int amlogic_sdhc_host_maxblklen(sdmmc_chipset_handle_t); +static int amlogic_sdhc_card_detect(sdmmc_chipset_handle_t); +static int amlogic_sdhc_write_protect(sdmmc_chipset_handle_t); +static int amlogic_sdhc_bus_power(sdmmc_chipset_handle_t, uint32_t); +static int amlogic_sdhc_bus_clock(sdmmc_chipset_handle_t, int); +static int amlogic_sdhc_bus_width(sdmmc_chipset_handle_t, int); +static int amlogic_sdhc_bus_rod(sdmmc_chipset_handle_t, int); +static void amlogic_sdhc_exec_command(sdmmc_chipset_handle_t, + struct sdmmc_command *); +static void amlogic_sdhc_card_enable_intr(sdmmc_chipset_handle_t, int); +static void amlogic_sdhc_card_intr_ack(sdmmc_chipset_handle_t); + +static int amlogic_sdhc_set_clock(struct amlogic_sdhc_softc *, u_int); +static int amlogic_sdhc_wait_idle(struct amlogic_sdhc_softc *); +static int amlogic_sdhc_wait_ista(struct amlogic_sdhc_softc *, uint32_t, int); + +static struct sdmmc_chip_functions amlogic_sdhc_chip_functions = { + .host_reset = amlogic_sdhc_host_reset, + .host_ocr = amlogic_sdhc_host_ocr, + .host_maxblklen = amlogic_sdhc_host_maxblklen, + .card_detect = amlogic_sdhc_card_detect, + .write_protect = amlogic_sdhc_write_protect, + .bus_power = amlogic_sdhc_bus_power, + .bus_clock = amlogic_sdhc_bus_clock, + .bus_width = amlogic_sdhc_bus_width, + .bus_rod = amlogic_sdhc_bus_rod, + .exec_command = amlogic_sdhc_exec_command, + .card_enable_intr = amlogic_sdhc_card_enable_intr, + .card_intr_ack = amlogic_sdhc_card_intr_ack, +}; + +#define SDHC_WRITE(sc, reg, val) \ + bus_space_write_4((sc)->sc_bst, (sc)->sc_bsh, (reg), (val)) +#define SDHC_READ(sc, reg) \ + bus_space_read_4((sc)->sc_bst, (sc)->sc_bsh, (reg)) + +static int +amlogic_sdhc_match(device_t parent, cfdata_t cf, void *aux) +{ + return 1; +} + +static void +amlogic_sdhc_attach(device_t parent, device_t self, void *aux) +{ + struct amlogic_sdhc_softc * const sc = device_private(self); + struct amlogicio_attach_args * const aio = aux; + const struct amlogic_locators * const loc = &aio->aio_loc; + + sc->sc_dev = self; + sc->sc_bst = aio->aio_core_bst; + sc->sc_dmat = aio->aio_dmat; + bus_space_subregion(aio->aio_core_bst, aio->aio_bsh, + loc->loc_offset, loc->loc_size, &sc->sc_bsh); + mutex_init(&sc->sc_intr_lock, MUTEX_DEFAULT, IPL_BIO); + cv_init(&sc->sc_intr_cv, "sdhcintr"); + + amlogic_sdhc_init(); + if (amlogic_sdhc_select_port(loc->loc_port) != 0) { + aprint_error(": couldn't select port %d\n", loc->loc_port); + return; + } + + aprint_naive("\n"); + aprint_normal(": SDHC controller\n"); + + sc->sc_ih = intr_establish(loc->loc_intr, IPL_BIO, IST_EDGE, + amlogic_sdhc_intr, sc); + if (sc->sc_ih == NULL) { + aprint_error_dev(self, "couldn't establish interrupt %d\n", + loc->loc_intr); + return; + } + aprint_normal_dev(self, "interrupting on irq %d\n", loc->loc_intr); + + config_interrupts(self, amlogic_sdhc_attach_i); +} + +static void +amlogic_sdhc_attach_i(device_t self) +{ + struct amlogic_sdhc_softc *sc = device_private(self); + struct sdmmcbus_attach_args saa; + + amlogic_sdhc_host_reset(sc); + amlogic_sdhc_bus_width(sc, 1); + + memset(&saa, 0, sizeof(saa)); + saa.saa_busname = "sdmmc"; + saa.saa_sct = &amlogic_sdhc_chip_functions; + saa.saa_dmat = sc->sc_dmat; + saa.saa_sch = sc; + saa.saa_clkmin = 400; + saa.saa_clkmax = 50000; + saa.saa_caps = SMC_CAPS_4BIT_MODE| + SMC_CAPS_8BIT_MODE| + SMC_CAPS_SD_HIGHSPEED| + SMC_CAPS_MMC_HIGHSPEED| + SMC_CAPS_AUTO_STOP| + SMC_CAPS_DMA; + + sc->sc_sdmmc_dev = config_found(self, &saa, NULL); +} + +static int +amlogic_sdhc_intr(void *priv) +{ + struct amlogic_sdhc_softc *sc = priv; + uint32_t ista; + + mutex_enter(&sc->sc_intr_lock); + ista = SDHC_READ(sc, SD_ISTA_REG); + + if (!ista) { + mutex_exit(&sc->sc_intr_lock); + return 0; + } + + SDHC_WRITE(sc, SD_ISTA_REG, ista); + + sc->sc_intr_ista |= ista; + cv_broadcast(&sc->sc_intr_cv); + + mutex_exit(&sc->sc_intr_lock); + + return 1; +} + +static int +amlogic_sdhc_set_clock(struct amlogic_sdhc_softc *sc, u_int freq) +{ + uint32_t clkc; + uint32_t clk2; + u_int pll_freq, clk_div; + + clkc = SDHC_READ(sc, SD_CLKC_REG); + clkc &= ~SD_CLKC_TX_CLK_ENABLE; + clkc &= ~SD_CLKC_RX_CLK_ENABLE; + clkc &= ~SD_CLKC_SD_CLK_ENABLE; + SDHC_WRITE(sc, SD_CLKC_REG, clkc); + clkc &= ~SD_CLKC_MOD_CLK_ENABLE; + SDHC_WRITE(sc, SD_CLKC_REG, clkc); + + if (freq == 0) + return 0; + + clkc &= ~SD_CLKC_CLK_DIV; + clkc &= ~SD_CLKC_CLK_IN_SEL; + + clkc |= __SHIFTIN(SD_CLKC_CLK_IN_SEL_FCLK_DIV3, + SD_CLKC_CLK_IN_SEL); + + pll_freq = amlogic_get_rate_fixed() / 1000; /* 2.55GHz */ + pll_freq /= 3; /* for SD_CLKC_CLK_IN_SEL_FCLK_DIV3 */ + clk_div = howmany(pll_freq, freq); + + clkc |= __SHIFTIN(clk_div - 1, SD_CLKC_CLK_DIV); + + SDHC_WRITE(sc, SD_CLKC_REG, clkc); + + clkc |= SD_CLKC_MOD_CLK_ENABLE; + SDHC_WRITE(sc, SD_CLKC_REG, clkc); + + clkc |= SD_CLKC_TX_CLK_ENABLE; + clkc |= SD_CLKC_RX_CLK_ENABLE; + clkc |= SD_CLKC_SD_CLK_ENABLE; + SDHC_WRITE(sc, SD_CLKC_REG, clkc); + + clk2 = SDHC_READ(sc, SD_CLK2_REG); + clk2 &= ~SD_CLK2_SD_CLK_PHASE; + clk2 |= __SHIFTIN(1, SD_CLK2_SD_CLK_PHASE); + clk2 &= ~SD_CLK2_RX_CLK_PHASE; + + const u_int act_freq = pll_freq / clk_div; + if (act_freq > 45000) { + clk2 |= __SHIFTIN(15, SD_CLK2_RX_CLK_PHASE); + /* XXX 11 for 1.8V */ + } else if (act_freq > 5000) { + clk2 |= __SHIFTIN(23, SD_CLK2_RX_CLK_PHASE); + } else if (act_freq > 1000) { + clk2 |= __SHIFTIN(55, SD_CLK2_RX_CLK_PHASE); + } else { + clk2 |= __SHIFTIN(1061, SD_CLK2_RX_CLK_PHASE); + } + SDHC_WRITE(sc, SD_CLK2_REG, clk2); + + return 0; +} + +static int +amlogic_sdhc_wait_idle(struct amlogic_sdhc_softc *sc) +{ + int i; + + for (i = 0; i < 1000000; i++) { + const uint32_t stat = SDHC_READ(sc, SD_STAT_REG); + const uint32_t esta = SDHC_READ(sc, SD_ESTA_REG); + if ((stat & SD_STAT_BUSY) == 0 && + (esta & SD_ESTA_BUSY) == 0) + return 0; + delay(1); + } + + return EBUSY; +} + +static int +amlogic_sdhc_wait_ista(struct amlogic_sdhc_softc *sc, uint32_t mask, int timeout) +{ + int retry, error; + + KASSERT(mutex_owned(&sc->sc_intr_lock)); + + if (sc->sc_intr_ista & mask) + return 0; + + retry = timeout / hz; + + while (retry > 0) { + error = cv_timedwait(&sc->sc_intr_cv, &sc->sc_intr_lock, hz); + if (error && error != EWOULDBLOCK) + return error; + if (sc->sc_intr_ista & mask) + return 0; + --retry; + } + + return ETIMEDOUT; +} + +static int +amlogic_sdhc_host_reset(sdmmc_chipset_handle_t sch) +{ + struct amlogic_sdhc_softc *sc = sch; + uint32_t enhc; + + SDHC_WRITE(sc, SD_SRST_REG, + SD_SRST_MAIN_CTRL | SD_SRST_TX_FIFO | SD_SRST_RX_FIFO | + SD_SRST_DPHY_TX | SD_SRST_DPHY_RX | SD_SRST_DMA_IF); + + delay(50); + + SDHC_WRITE(sc, SD_SRST_REG, 0); + + delay(10); + + SDHC_WRITE(sc, SD_CNTL_REG, + __SHIFTIN(0x7, SD_CNTL_TX_ENDIAN_CTRL) | + __SHIFTIN(0x7, SD_CNTL_RX_ENDIAN_CTRL) | + __SHIFTIN(0xf, SD_CNTL_RX_PERIOD) | + __SHIFTIN(0x7f, SD_CNTL_RX_TIMEOUT)); + + SDHC_WRITE(sc, SD_CLKC_REG, + SDHC_READ(sc, SD_CLKC_REG) & ~SD_CLKC_MEM_PWR); + + SDHC_WRITE(sc, SD_PDMA_REG, + __SHIFTIN(7, SD_PDMA_TX_BURST_LEN) | + __SHIFTIN(49, SD_PDMA_TXFIFO_THRESHOLD) | + __SHIFTIN(15, SD_PDMA_RX_BURST_LEN) | + __SHIFTIN(7, SD_PDMA_RXFIFO_THRESHOLD) | + SD_PDMA_DMA_URGENT); + + SDHC_WRITE(sc, SD_MISC_REG, + __SHIFTIN(7, SD_MISC_TXSTART_THRESHOLD) | + __SHIFTIN(5, SD_MISC_WCRC_ERR_PATTERN) | + __SHIFTIN(2, SD_MISC_WCRC_OK_PATTERN)); + + enhc = SDHC_READ(sc, SD_ENHC_REG); + enhc &= ~SD_ENHC_RXFIFO_THRESHOLD; + enhc |= __SHIFTIN(63, SD_ENHC_RXFIFO_THRESHOLD); + enhc &= ~SD_ENHC_DMA_RX_RESP; + enhc |= SD_ENHC_DMA_TX_RESP; + enhc &= ~SD_ENHC_SDIO_IRQ_PERIOD; + enhc |= __SHIFTIN(12, SD_ENHC_SDIO_IRQ_PERIOD); + enhc &= ~SD_ENHC_RX_TIMEOUT; + enhc |= __SHIFTIN(0xff, SD_ENHC_RX_TIMEOUT); + SDHC_WRITE(sc, SD_ENHC_REG, enhc); + + SDHC_WRITE(sc, SD_ICTL_REG, 0); + SDHC_WRITE(sc, SD_ISTA_REG, SD_INT_CLEAR); + + return 0; +} + +static uint32_t +amlogic_sdhc_host_ocr(sdmmc_chipset_handle_t sch) +{ + return MMC_OCR_3_2V_3_3V | MMC_OCR_3_3V_3_4V; +} + +static int +amlogic_sdhc_host_maxblklen(sdmmc_chipset_handle_t sch) +{ + return 512; +} + +static int +amlogic_sdhc_card_detect(sdmmc_chipset_handle_t sch) +{ + return 1; +} + +static int +amlogic_sdhc_write_protect(sdmmc_chipset_handle_t sch) +{ + return 0; +} + +static int +amlogic_sdhc_bus_power(sdmmc_chipset_handle_t sch, uint32_t ocr) +{ + return 0; +} + +static int +amlogic_sdhc_bus_clock(sdmmc_chipset_handle_t sch, int freq) +{ + struct amlogic_sdhc_softc *sc = sch; + + return amlogic_sdhc_set_clock(sc, freq); +} + +static int +amlogic_sdhc_bus_width(sdmmc_chipset_handle_t sch, int width) +{ + struct amlogic_sdhc_softc *sc = sch; + uint32_t cntl; + + cntl = SDHC_READ(sc, SD_CNTL_REG); + cntl &= ~SD_CNTL_DAT_TYPE; + switch (width) { + case 1: + cntl |= __SHIFTIN(0, SD_CNTL_DAT_TYPE); + break; + case 4: + cntl |= __SHIFTIN(1, SD_CNTL_DAT_TYPE); + break; + case 8: + cntl |= __SHIFTIN(2, SD_CNTL_DAT_TYPE); + break; + default: + return EINVAL; + } + + SDHC_WRITE(sc, SD_CNTL_REG, cntl); + + return 0; +} + +static int +amlogic_sdhc_bus_rod(sdmmc_chipset_handle_t sch, int on) +{ + return ENOTSUP; +} + +static void +amlogic_sdhc_exec_command(sdmmc_chipset_handle_t sch, struct sdmmc_command *cmd) +{ + struct amlogic_sdhc_softc *sc = sch; + uint32_t cmdval = 0, cntl, srst, pdma; + int i; + + KASSERT(cmd->c_blklen <= 512); + + mutex_enter(&sc->sc_intr_lock); + + /* Filter SDIO commands */ + switch (cmd->c_opcode) { + case SD_IO_SEND_OP_COND: + case SD_IO_RW_DIRECT: + case SD_IO_RW_EXTENDED: + cmd->c_error = EINVAL; + goto done; + } + + while (SDHC_READ(sc, SD_STAT_REG) & __BIT(24)) + delay(10); + + if (cmd->c_opcode == MMC_STOP_TRANSMISSION) + cmdval |= SD_SEND_DATA_STOP; + if (cmd->c_flags & SCF_RSP_PRESENT) + cmdval |= SD_SEND_COMMAND_HAS_RESP; + if (cmd->c_flags & SCF_RSP_136) { + cmdval |= SD_SEND_RESPONSE_LENGTH; + cmdval |= SD_SEND_RESPONSE_NO_CRC; + } + if ((cmd->c_flags & SCF_RSP_CRC) == 0) + cmdval |= SD_SEND_RESPONSE_NO_CRC; + + cntl = SDHC_READ(sc, SD_CNTL_REG); + cntl &= ~SD_CNTL_PACK_LEN; + if (cmd->c_datalen > 0) { + unsigned int nblks; + + cmdval |= SD_SEND_COMMAND_HAS_DATA; + if (!ISSET(cmd->c_flags, SCF_CMD_READ)) { + cmdval |= SD_SEND_DATA_DIRECTION; + } + + nblks = cmd->c_datalen / cmd->c_blklen; + if (nblks == 0 || (cmd->c_datalen % cmd->c_blklen) != 0) + ++nblks; + + cntl |= __SHIFTIN(cmd->c_blklen & 0x1ff, SD_CNTL_PACK_LEN); + + cmdval |= __SHIFTIN(nblks - 1, SD_SEND_TOTAL_PACK); + } + SDHC_WRITE(sc, SD_CNTL_REG, cntl); + + SDHC_WRITE(sc, SD_ISTA_REG, SD_INT_CLEAR); + sc->sc_intr_ista = 0; + SDHC_WRITE(sc, SD_ICTL_REG, + SD_INT_ERROR | SD_INT_DATA_COMPLETE | SD_INT_RESP_COMPLETE | + SD_INT_DMA_DONE); + + pdma = SDHC_READ(sc, SD_PDMA_REG); + pdma |= SD_PDMA_DMA_MODE; + SDHC_WRITE(sc, SD_PDMA_REG, pdma); + + SDHC_WRITE(sc, SD_ARGU_REG, cmd->c_arg); + + cmd->c_error = amlogic_sdhc_wait_idle(sc); + if (cmd->c_error) { + goto done; + } + + if (cmd->c_datalen > 0) { + KASSERT(cmd->c_dmamap->dm_nsegs == 1); + KASSERT(cmd->c_dmamap->dm_segs[0].ds_len == cmd->c_datalen); + SDHC_WRITE(sc, SD_ADDR_REG, cmd->c_dmamap->dm_segs[0].ds_addr); + } + + cmd->c_resid = cmd->c_datalen; + SDHC_WRITE(sc, SD_SEND_REG, cmdval | cmd->c_opcode); + + if (cmd->c_flags & SCF_RSP_PRESENT) { + cmd->c_error = amlogic_sdhc_wait_ista(sc, + SD_INT_ERROR | SD_INT_RESP_COMPLETE, hz * 10); + if (cmd->c_error == 0 && (sc->sc_intr_ista & SD_INT_ERROR)) { + if (sc->sc_intr_ista & SD_INT_TIMEOUT) { + cmd->c_error = ETIMEDOUT; + } else { + cmd->c_error = EIO; + } + } + if (cmd->c_error) { + goto done; + } + } + + if (cmd->c_datalen > 0) { + cmd->c_error = amlogic_sdhc_wait_ista(sc, + SD_INT_ERROR | SD_INT_DMA_DONE, hz * 10); + if (cmd->c_error == 0 && + (sc->sc_intr_ista & SD_INT_ERROR)) { + cmd->c_error = ETIMEDOUT; + } + if (cmd->c_error) { + goto done; + } + } + + if (cmd->c_flags & SCF_RSP_PRESENT) { + pdma = SDHC_READ(sc, SD_PDMA_REG); + pdma &= ~SD_PDMA_DMA_MODE; + if (cmd->c_flags & SCF_RSP_136) { + for (i = 4; i >= 1; i--) { + pdma &= ~SD_PDMA_PIO_RDRESP; + pdma |= __SHIFTIN(i, SD_PDMA_PIO_RDRESP); + SDHC_WRITE(sc, SD_PDMA_REG, pdma); + cmd->c_resp[i - 1] = SDHC_READ(sc, SD_ARGU_REG); + + } + if (cmd->c_flags & SCF_RSP_CRC) { + cmd->c_resp[0] = (cmd->c_resp[0] >> 8) | + (cmd->c_resp[1] << 24); + cmd->c_resp[1] = (cmd->c_resp[1] >> 8) | + (cmd->c_resp[2] << 24); + cmd->c_resp[2] = (cmd->c_resp[2] >> 8) | + (cmd->c_resp[3] << 24); + cmd->c_resp[3] = (cmd->c_resp[3] >> 8); + } + } else { + pdma &= ~SD_PDMA_PIO_RDRESP; + pdma |= __SHIFTIN(0, SD_PDMA_PIO_RDRESP); + SDHC_WRITE(sc, SD_PDMA_REG, pdma); + cmd->c_resp[0] = SDHC_READ(sc, SD_ARGU_REG); + } + } + +done: + cmd->c_flags |= SCF_ITSDONE; + + SDHC_WRITE(sc, SD_ISTA_REG, SD_INT_CLEAR); + SDHC_WRITE(sc, SD_ICTL_REG, 0); + + srst = SDHC_READ(sc, SD_SRST_REG); + srst |= (SD_SRST_TX_FIFO | SD_SRST_RX_FIFO); + SDHC_WRITE(sc, SD_SRST_REG, srst); + + mutex_exit(&sc->sc_intr_lock); +} + +static void +amlogic_sdhc_card_enable_intr(sdmmc_chipset_handle_t sch, int enable) +{ +} + +static void +amlogic_sdhc_card_intr_ack(sdmmc_chipset_handle_t sch) +{ +} Index: src/sys/arch/arm/amlogic/amlogic_sdhcreg.h diff -u /dev/null src/sys/arch/arm/amlogic/amlogic_sdhcreg.h:1.1 --- /dev/null Sun Mar 8 12:44:55 2015 +++ src/sys/arch/arm/amlogic/amlogic_sdhcreg.h Sun Mar 8 12:44:55 2015 @@ -0,0 +1,150 @@ +/* $NetBSD: amlogic_sdhcreg.h,v 1.1 2015/03/08 12:44:55 jmcneill Exp $ */ + +/*- + * Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _ARM_AMLOGIC_SDHCREG_H +#define _ARM_AMLOGIC_SDHCREG_H + +#define SD_ARGU_REG 0x00 +#define SD_SEND_REG 0x04 +#define SD_CNTL_REG 0x08 +#define SD_STAT_REG 0x0c +#define SD_CLKC_REG 0x10 +#define SD_ADDR_REG 0x14 +#define SD_PDMA_REG 0x18 +#define SD_MISC_REG 0x1c +#define SD_DATA_REG 0x20 +#define SD_ICTL_REG 0x24 +#define SD_ISTA_REG 0x28 +#define SD_SRST_REG 0x2c +#define SD_ESTA_REG 0x30 +#define SD_ENHC_REG 0x34 +#define SD_CLK2_REG 0x38 + +#define SD_SEND_TOTAL_PACK __BITS(31,16) +#define SD_SEND_R1B __BIT(12) +#define SD_SEND_DATA_STOP __BIT(11) +#define SD_SEND_DATA_DIRECTION __BIT(10) +#define SD_SEND_RESPONSE_NO_CRC __BIT(9) +#define SD_SEND_RESPONSE_LENGTH __BIT(8) +#define SD_SEND_COMMAND_HAS_DATA __BIT(7) +#define SD_SEND_COMMAND_HAS_RESP __BIT(6) +#define SD_SEND_COMMAND_INDEX __BITS(5,0) + +#define SD_CNTL_TX_ENDIAN_CTRL __BITS(31,29) +#define SD_CNTL_DAT0_INT_SEL __BIT(28) +#define SD_CNTL_SDIO_IRQ_MODE __BIT(27) +#define SD_CNTL_RX_ENDIAN_CTRL __BITS(26,24) +#define SD_CNTL_RX_PERIOD __BITS(23,20) +#define SD_CNTL_RX_TIMEOUT __BITS(19,13) +#define SD_CNTL_PACK_LEN __BITS(12,4) +#define SD_CNTL_TX_CRC_CHECK __BIT(3) +#define SD_CNTL_DDR_MODE __BIT(2) +#define SD_CNTL_DAT_TYPE __BITS(1,0) + +#define SD_STAT_DAT_HI __BITS(23,20) +#define SD_STAT_TXFIFO_COUNT __BITS(19,13) +#define SD_STAT_RXFIFO_COUNT __BITS(12,6) +#define SD_STAT_CMD __BIT(5) +#define SD_STAT_DAT_LO __BITS(4,1) +#define SD_STAT_BUSY __BIT(0) + +#define SD_CLKC_MEM_PWR __BITS(26,25) +#define SD_CLKC_MEM_PWR_ON 0 +#define SD_CLKC_MEM_PWR_OFF 3 +#define SD_CLKC_CLK_JIC __BIT(24) +#define SD_CLKC_CLK_IN_SEL __BITS(17,16) +#define SD_CLKC_CLK_IN_SEL_OSC 0 +#define SD_CLKC_CLK_IN_SEL_FCLK_DIV4 1 +#define SD_CLKC_CLK_IN_SEL_FCLK_DIV3 2 +#define SD_CLKC_CLK_IN_SEL_FCLK_DIV5 3 +#define SD_CLKC_MOD_CLK_ENABLE __BIT(15) +#define SD_CLKC_SD_CLK_ENABLE __BIT(14) +#define SD_CLKC_RX_CLK_ENABLE __BIT(13) +#define SD_CLKC_TX_CLK_ENABLE __BIT(12) +#define SD_CLKC_CLK_DIV __BITS(11,0) + +#define SD_PDMA_TXFIFO_FILL __BIT(31) +#define SD_PDMA_RXFIFO_MANUAL_FLUSH __BITS(30,29) +#define SD_PDMA_TXFIFO_THRESHOLD __BITS(28,22) +#define SD_PDMA_RXFIFO_THRESHOLD __BITS(21,15) +#define SD_PDMA_RX_BURST_LEN __BITS(14,10) +#define SD_PDMA_TX_BURST_LEN __BITS(9,5) +#define SD_PDMA_DMA_URGENT __BIT(4) +#define SD_PDMA_PIO_RDRESP __BITS(3,1) +#define SD_PDMA_DMA_MODE __BIT(0) + +#define SD_MISC_TXSTART_THRESHOLD __BITS(31,29) +#define SD_MISC_STOP_MODE __BIT(28) +#define SD_MISC_THREAD_ID __BITS(27,22) +#define SD_MISC_BURST_NUMBER __BITS(21,16) +#define SD_MISC_WCRC_OK_PATTERN __BITS(9,7) +#define SD_MISC_WCRC_ERR_PATTERN __BITS(6,4) + +#define SD_ICTL_SDIO_DAT1 __BITS(17,16) + +#define SD_INT_ADDL_SDIO_DAT1 __BIT(14) +#define SD_INT_TXFIFO __BIT(13) +#define SD_INT_RXFIFO __BIT(12) +#define SD_INT_DMA_DONE __BIT(11) +#define SD_INT_SDIO_DAT1 __BIT(10) +#define SD_INT_TXFIFO_THRES __BIT(9) +#define SD_INT_RXFIFO_THRES __BIT(8) +#define SD_INT_DATA_COMPLETE __BIT(7) +#define SD_INT_PACK_CRC_ERROR __BIT(6) +#define SD_INT_PACK_TIMEOUT __BIT(5) +#define SD_INT_PACK_COMPLETE __BIT(4) +#define SD_INT_DATA_BIT0_CHG __BIT(3) +#define SD_INT_RESP_CRC_ERROR __BIT(2) +#define SD_INT_RESP_TIMEOUT __BIT(1) +#define SD_INT_RESP_COMPLETE __BIT(0) + +#define SD_INT_TIMEOUT (SD_INT_PACK_TIMEOUT | SD_INT_RESP_TIMEOUT) +#define SD_INT_CRC_ERROR (SD_INT_PACK_CRC_ERROR | SD_INT_RESP_CRC_ERROR) +#define SD_INT_ERROR (SD_INT_TIMEOUT | SD_INT_CRC_ERROR) +#define SD_INT_CLEAR 0x7fff + +#define SD_SRST_DMA_IF __BIT(5) +#define SD_SRST_DPHY_TX __BIT(4) +#define SD_SRST_DPHY_RX __BIT(3) +#define SD_SRST_TX_FIFO __BIT(2) +#define SD_SRST_RX_FIFO __BIT(1) +#define SD_SRST_MAIN_CTRL __BIT(0) + +#define SD_ENHC_RX_TIMEOUT __BITS(7,0) +#define SD_ENHC_SDIO_IRQ_PERIOD __BITS(15,8) +#define SD_ENHC_DMA_RX_RESP __BIT(16) +#define SD_ENHC_DMA_TX_RESP __BIT(17) +#define SD_ENHC_RXFIFO_THRESHOLD __BITS(24,18) +#define SD_ENHC_TXFIFO_THRESHOLD __BITS(31,25) + +#define SD_ESTA_BUSY __BITS(13,11) /* XXX ??? */ + +#define SD_CLK2_RX_CLK_PHASE __BITS(11,0) +#define SD_CLK2_SD_CLK_PHASE __BITS(23,12) + +#endif /* _ARM_AMLOGIC_SDHCREG_H */