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author | Wolfgang Denk <wd@denx.de> | 2011-10-28 00:15:19 +0200 |
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committer | Wolfgang Denk <wd@denx.de> | 2011-10-28 00:15:19 +0200 |
commit | 87a5d601031652293ec4b729fdb7ee01bbd940a8 (patch) | |
tree | 91ede3ee45b228736c1876a700024782d7bc2032 /drivers/mmc | |
parent | 606a76f8ef479e42ae4d06f8f3ce87e9a1c72acf (diff) | |
parent | 37fc0ed268dc5acacd3a83adafa26eb1a84e90af (diff) | |
download | u-boot-imx-87a5d601031652293ec4b729fdb7ee01bbd940a8.zip u-boot-imx-87a5d601031652293ec4b729fdb7ee01bbd940a8.tar.gz u-boot-imx-87a5d601031652293ec4b729fdb7ee01bbd940a8.tar.bz2 |
Merge branch 'master' of git://git.denx.de/u-boot-arm
* 'master' of git://git.denx.de/u-boot-arm:
ARM: Add Calxeda Highbank platform
dkb: make mmc command as default enabled
Marvell: dkb: add mmc support
ARM: pantheon: add mmc definition
davinci: remove config.mk file from the sources
ARM:AM33XX: Add support for TI AM335X EVM
ARM:AM33XX: Added timer support
ARM:AM33XX: Add emif/ddr support
ARM:AM33XX: Add clock definitions
ARM:AM33XX: Added support for AM33xx
omap3/emif4: fix registers definition
davinci: remove obsolete macro CONFIG_EMAC_MDIO_PHY_NUM
davinci: emac: add support for more than 1 PHYs
davinci: emac: add new features to autonegotiate for EMAC
da850evm: Move LPSC configuration to board_early_init_f()
omap4_panda: Build in cmd_gpio support on panda
omap: Don't use gpio_free to change direction to input
mmc: omap: Allow OMAP_HSMMC[23]_BASE to be unset
OMAP3: overo : Add environment variable optargs to bootargs
OMAP3: overo: Move ethernet CS4 configuration to execute based on board id
OMAP3: overo : Use ttyO2 instead of ttyS2.
da830: add support for NAND boot mode
dm36x: revert cache disable patch
dm644X: revert cache disable patch
devkit8000: Add malloc space
omap: spl: fix build break due to changes in FAT
OMAP3 SPL: Provide weak omap_rev_string
omap: beagle: Use ubifs instead of jffs2 for nand boot
omap: overo: Disable pull-ups on camera PCLK, HS and VS signals
omap: overo: Configure mux for gpio10
SPL: Add DMA library
omap3: Add interface for omap3 DMA
omap3: Add DMA register accessors
omap3: Add Base register for DMA
arm, davinci: add missing LSPC define for MMC/SD1
U-Boot/SPL: omap4: Make ddr pre-calculated timings as default.
DaVinci: correct MDSTAT.STATE mask
omap4: splitting padconfs into common, 4430 and 4460
omap4: adding revision detection for 4460 ES1.1
omap4: replacing OMAP4_CONTROL with OMAP4430_CONTROL
gplug: fixed build error as a result of code cleanup patch
kirkwood_spi: add dummy spi_init()
gpio: mvmfp: reduce include platform file
ARM: orion5x: reduce dependence of including platform file
serial: reduce include platform file for marvell chip
ARM: kirkwood: reduce dependence of including platform file
ARM: armada100: reduce dependence of including platform file
ARM: pantheon: reduce dependence of including platform file
Armada100: Add env storage support for Marvell gplugD
Armada100: Add SPI flash support for Marvell gplugD
Armada100: Add SPI support for Marvell gplugD
SPI: Add SPI driver support for Marvell Armada100
dreamplug: initial board support.
imx: fix coding style
misc: pmic: drop old Freescale's pmic driver
MX31: mx31pdk: use new pmic driver
MX31: mx31ads: use new pmic driver
MX31: mx31_litekit: use new pmic driver
MX5: mx53evk: use new pmic driver
MX5: mx51evk: use new pmic driver
MX35: mx35pdk: use new pmic driver
misc: pmic: addI2C support to pmic_fsl driver
misc: pmic: use I2C_SET_BUS in pmic I2C
MX5: efikamx/efikasb: use new pmic driver
MX3: qong: use new pmic driver
RTC: Switch mc13783 to generic pmic code
MX5: vision2: use new pmic driver
misc: pmic: Freescale PMIC switches to generic PMIC driver
misc:pmic:samsung Enable PMIC driver at GONI target
misc:pmic:max8998 MAX8998 support at a new PMIC driver.
misc:pmic:core New generic PMIC driver
mx31pdk: Remove unneeded config
mx31: provide readable WEIM CS accessor
MX51: vision2: Set global macros
I2C: Add i2c_get/set_speed() to mxc_i2c.c
ARM: Update mach-types
devkit8000: Add config to enable SPL MMC boot
devkit8000: protect board_mmc_init
arm, post: add missing post_time_ms for arm
cosmetic, post: Codingstyle cleanup
arm, logbuffer: make it compileclean
tegra2: Enable MMC for Seaboard
tegra2: Add more pinmux functions
tegra2: Rename PIN_ to PINGRP_
tegra2: Add more clock functions
tegra2: Clean up board code a little
tegra2: Rename CLOCK_PLL_ID to CLOCK_ID
Diffstat (limited to 'drivers/mmc')
-rw-r--r-- | drivers/mmc/omap_hsmmc.c | 4 | ||||
-rw-r--r-- | drivers/mmc/tegra2_mmc.c | 94 | ||||
-rw-r--r-- | drivers/mmc/tegra2_mmc.h | 1 |
3 files changed, 37 insertions, 62 deletions
diff --git a/drivers/mmc/omap_hsmmc.c b/drivers/mmc/omap_hsmmc.c index 5d4cf51..ebda980 100644 --- a/drivers/mmc/omap_hsmmc.c +++ b/drivers/mmc/omap_hsmmc.c @@ -475,12 +475,16 @@ int omap_mmc_init(int dev_index) case 0: mmc->priv = (hsmmc_t *)OMAP_HSMMC1_BASE; break; +#ifdef OMAP_HSMMC2_BASE case 1: mmc->priv = (hsmmc_t *)OMAP_HSMMC2_BASE; break; +#endif +#ifdef OMAP_HSMMC3_BASE case 2: mmc->priv = (hsmmc_t *)OMAP_HSMMC3_BASE; break; +#endif default: mmc->priv = (hsmmc_t *)OMAP_HSMMC1_BASE; return 1; diff --git a/drivers/mmc/tegra2_mmc.c b/drivers/mmc/tegra2_mmc.c index 8b6f829..9e741f2 100644 --- a/drivers/mmc/tegra2_mmc.c +++ b/drivers/mmc/tegra2_mmc.c @@ -23,36 +23,46 @@ #include <mmc.h> #include <asm/io.h> #include <asm/arch/clk_rst.h> +#include <asm/arch/clock.h> #include "tegra2_mmc.h" /* support 4 mmc hosts */ struct mmc mmc_dev[4]; struct mmc_host mmc_host[4]; -static inline struct tegra2_mmc *tegra2_get_base_mmc(int dev_index) + +/** + * Get the host address and peripheral ID for a device. Devices are numbered + * from 0 to 3. + * + * @param host Structure to fill in (base, reg, mmc_id) + * @param dev_index Device index (0-3) + */ +static void tegra2_get_setup(struct mmc_host *host, int dev_index) { - unsigned long offset; debug("tegra2_get_base_mmc: dev_index = %d\n", dev_index); switch (dev_index) { - case 0: - offset = TEGRA2_SDMMC4_BASE; - break; case 1: - offset = TEGRA2_SDMMC3_BASE; + host->base = TEGRA2_SDMMC3_BASE; + host->mmc_id = PERIPH_ID_SDMMC3; break; case 2: - offset = TEGRA2_SDMMC2_BASE; + host->base = TEGRA2_SDMMC2_BASE; + host->mmc_id = PERIPH_ID_SDMMC2; break; case 3: - offset = TEGRA2_SDMMC1_BASE; + host->base = TEGRA2_SDMMC1_BASE; + host->mmc_id = PERIPH_ID_SDMMC1; break; + case 0: default: - offset = TEGRA2_SDMMC4_BASE; + host->base = TEGRA2_SDMMC4_BASE; + host->mmc_id = PERIPH_ID_SDMMC4; break; } - return (struct tegra2_mmc *)(offset); + host->reg = (struct tegra2_mmc *)host->base; } static void mmc_prepare_data(struct mmc_host *host, struct mmc_data *data) @@ -274,62 +284,24 @@ static int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, static void mmc_change_clock(struct mmc_host *host, uint clock) { - int div, hw_div; + int div; unsigned short clk; unsigned long timeout; - unsigned int reg, hostbase; - struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; + debug(" mmc_change_clock called\n"); - /* Change Tegra2 SDMMCx clock divisor here */ - /* Source is 216MHz, PLLP_OUT0 */ + /* + * Change Tegra2 SDMMCx clock divisor here. Source is 216MHz, + * PLLP_OUT0 + */ if (clock == 0) goto out; - - div = 1; - if (clock <= 400000) { - hw_div = ((9-1)<<1); /* Best match is 375KHz */ - div = 64; - } else if (clock <= 20000000) - hw_div = ((11-1)<<1); /* Best match is 19.6MHz */ - else if (clock <= 26000000) - hw_div = ((9-1)<<1); /* Use 24MHz */ - else - hw_div = ((4-1)<<1) + 1; /* 4.5 divisor for 48MHz */ - - debug("mmc_change_clock: hw_div = %d, card clock div = %d\n", - hw_div, div); - - /* Change SDMMCx divisor */ - - hostbase = readl(&host->base); - debug("mmc_change_clock: hostbase = %08X\n", hostbase); - - if (hostbase == TEGRA2_SDMMC1_BASE) { - reg = readl(&clkrst->crc_clk_src_sdmmc1); - reg &= 0xFFFFFF00; /* divisor (7.1) = 00 */ - reg |= hw_div; /* n-1 */ - writel(reg, &clkrst->crc_clk_src_sdmmc1); - } else if (hostbase == TEGRA2_SDMMC2_BASE) { - reg = readl(&clkrst->crc_clk_src_sdmmc2); - reg &= 0xFFFFFF00; /* divisor (7.1) = 00 */ - reg |= hw_div; /* n-1 */ - writel(reg, &clkrst->crc_clk_src_sdmmc2); - } else if (hostbase == TEGRA2_SDMMC3_BASE) { - reg = readl(&clkrst->crc_clk_src_sdmmc3); - reg &= 0xFFFFFF00; /* divisor (7.1) = 00 */ - reg |= hw_div; /* n-1 */ - writel(reg, &clkrst->crc_clk_src_sdmmc3); - } else { - reg = readl(&clkrst->crc_clk_src_sdmmc4); - reg &= 0xFFFFFF00; /* divisor (7.1) = 00 */ - reg |= hw_div; /* n-1 */ - writel(reg, &clkrst->crc_clk_src_sdmmc4); - } + clock_adjust_periph_pll_div(host->mmc_id, CLOCK_ID_PERIPH, clock, + &div); + debug("div = %d\n", div); writew(0, &host->reg->clkcon); - div >>= 1; /* * CLKCON * SELFREQ[15:8] : base clock divided by value @@ -337,6 +309,7 @@ static void mmc_change_clock(struct mmc_host *host, uint clock) * STBLINTCLK[1] : Internal Clock Stable * ENINTCLK[0] : Internal Clock Enable */ + div >>= 1; clk = (div << 8) | (1 << 0); writew(clk, &host->reg->clkcon); @@ -355,7 +328,6 @@ static void mmc_change_clock(struct mmc_host *host, uint clock) writew(clk, &host->reg->clkcon); debug("mmc_change_clock: clkcon = %08X\n", clk); - debug("mmc_change_clock: CLK_SOURCE_SDMMCx = %08X\n", reg); out: host->clock = clock; @@ -370,7 +342,6 @@ static void mmc_set_ios(struct mmc *mmc) debug("bus_width: %x, clock: %d\n", mmc->bus_width, mmc->clock); /* Change clock first */ - mmc_change_clock(host, mmc->clock); ctrl = readb(&host->reg->hostctl); @@ -481,7 +452,7 @@ static int tegra2_mmc_initialize(int dev_index, int bus_width) mmc->host_caps = MMC_MODE_8BIT; else mmc->host_caps = MMC_MODE_4BIT; - mmc->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS; + mmc->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS | MMC_MODE_HC; /* * min freq is for card identification, and is the highest @@ -495,8 +466,7 @@ static int tegra2_mmc_initialize(int dev_index, int bus_width) mmc->f_max = 48000000; mmc_host[dev_index].clock = 0; - mmc_host[dev_index].reg = tegra2_get_base_mmc(dev_index); - mmc_host[dev_index].base = (unsigned int)mmc_host[dev_index].reg; + tegra2_get_setup(&mmc_host[dev_index], dev_index); mmc_register(mmc); return 0; diff --git a/drivers/mmc/tegra2_mmc.h b/drivers/mmc/tegra2_mmc.h index 4b80f9f..28698e0 100644 --- a/drivers/mmc/tegra2_mmc.h +++ b/drivers/mmc/tegra2_mmc.h @@ -73,6 +73,7 @@ struct mmc_host { unsigned int version; /* SDHCI spec. version */ unsigned int clock; /* Current clock (MHz) */ unsigned int base; /* Base address, SDMMC1/2/3/4 */ + enum periph_id mmc_id; /* Peripheral ID: PERIPH_ID_... */ }; int tegra2_mmc_init(int dev_index, int bus_width); |