#define ESDHC_CTRL_BUSWIDTH_MASK (0x3 << 1)
/*
- * There is an INT DMA ERR mis-match between eSDHC and STD SDHC SPEC:
+ * There is an INT DMA ERR mismatch between eSDHC and STD SDHC SPEC:
* Bit25 is used in STD SPEC, and is reserved in fsl eSDHC design,
* but bit28 is used as the INT DMA ERR in fsl eSDHC design.
* Define this macro DMA error INT for fsl eSDHC
* In exact block transfer, the controller doesn't complete the
* operations automatically as required at the end of the
* transfer and remains on hold if the abort command is not sent.
- * As a result, the TC flag is not asserted and SW received timeout
- * exeception. Bit1 of Vendor Spec registor is used to fix it.
+ * As a result, the TC flag is not asserted and SW received timeout
+ * exception. Bit1 of Vendor Spec register is used to fix it.
*/
#define ESDHC_FLAG_MULTIBLK_NO_INT BIT(1)
/*
- * The flag enables the workaround for ESDHC errata ENGcm07207 which
+ * The flag enables the workaround for ESDHC erratum ENGcm07207 which
* affects i.MX25 and i.MX35.
*/
#define ESDHC_FLAG_ENGCM07207 BIT(2)
/* The IP has SDHCI_CAPABILITIES_1 register */
#define ESDHC_FLAG_HAVE_CAP1 BIT(6)
/*
- * The IP has errata ERR004536
+ * The IP has erratum ERR004536
* uSDHC: ADMA Length Mismatch Error occurs if the AHB read access is slow,
* when reading data from the card
*/
/* The IP supports HS400 mode */
#define ESDHC_FLAG_HS400 BIT(9)
-/* A higher clock ferquency than this rate requires strobell dll control */
+/* A clock frequency higher than this rate requires strobe dll control */
#define ESDHC_STROBE_DLL_CLK_FREQ 100000000
struct esdhc_soc_data {
struct clk *clk_ahb;
struct clk *clk_per;
enum {
- NO_CMD_PENDING, /* no multiblock command pending*/
+ NO_CMD_PENDING, /* no multiblock command pending */
MULTIBLK_IN_PROCESS, /* exact multiblock cmd in process */
WAIT_FOR_INT, /* sent CMD12, waiting for response INT */
} multiblock_status;
* ADMA2 capability of esdhc, but this bit is messed up on
* some SOCs (e.g. on MX25, MX35 this bit is set, but they
* don't actually support ADMA2). So set the BROKEN_ADMA
- * uirk on MX25/35 platforms.
+ * quirk on MX25/35 platforms.
*/
if (val & SDHCI_CAN_DO_ADMA1) {
if ((val & SDHCI_INT_CARD_INT) && !esdhc_is_usdhc(imx_data)) {
/*
* Clear and then set D3CD bit to avoid missing the
- * card interrupt. This is a eSDHC controller problem
+ * card interrupt. This is an eSDHC controller problem
* so we need to apply the following workaround: clear
* and set D3CD bit will make eSDHC re-sample the card
* interrupt. In case a card interrupt was lost,
* Do not touch buswidth bits here. This is done in
* esdhc_pltfm_bus_width.
* Do not touch the D3CD bit either which is used for the
- * SDIO interrupt errata workaround.
+ * SDIO interrupt erratum workaround.
*/
mask = 0xffff & ~(ESDHC_CTRL_BUSWIDTH_MASK | ESDHC_CTRL_D3CD);
writel(reg, host->ioaddr + ESDHC_MIX_CTRL);
writel(val << 8, host->ioaddr + ESDHC_TUNE_CTRL_STATUS);
dev_dbg(mmc_dev(host->mmc),
- "tunning with delay 0x%x ESDHC_TUNE_CTRL_STATUS 0x%x\n",
+ "tuning with delay 0x%x ESDHC_TUNE_CTRL_STATUS 0x%x\n",
val, readl(host->ioaddr + ESDHC_TUNE_CTRL_STATUS));
}
ret = mmc_send_tuning(host->mmc, opcode, NULL);
esdhc_post_tuning(host);
- dev_dbg(mmc_dev(host->mmc), "tunning %s at 0x%x ret %d\n",
+ dev_dbg(mmc_dev(host->mmc), "tuning %s at 0x%x ret %d\n",
ret ? "failed" : "passed", avg, ret);
return ret;
}
/*
- * For HS400 eMMC, there is a data_strobe line, this signal is generated
+ * For HS400 eMMC, there is a data_strobe line. This signal is generated
* by the device and used for data output and CRC status response output
* in HS400 mode. The frequency of this signal follows the frequency of
- * CLK generated by host. Host receive the data which is aligned to the
+ * CLK generated by host. The host receives the data which is aligned to the
* edge of data_strobe line. Due to the time delay between CLK line and
* data_strobe line, if the delay time is larger than one clock cycle,
- * then CLK and data_strobe line will misaligned, read error shows up.
+ * then CLK and data_strobe line will be misaligned, read error shows up.
* So when the CLK is higher than 100MHz, each clock cycle is short enough,
- * host should config the delay target.
+ * host should configure the delay target.
*/
static void esdhc_set_strobe_dll(struct sdhci_host *host)
{
struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
u32 ctrl;
- /* Rest the tuning circurt */
+ /* Reset the tuning circuit */
if (esdhc_is_usdhc(imx_data)) {
if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) {
ctrl = readl(host->ioaddr + ESDHC_MIX_CTRL);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
- /* Doc Errata: the uSDHC actual maximum timeout count is 1 << 29 */
+ /* Doc Erratum: the uSDHC actual maximum timeout count is 1 << 29 */
return esdhc_is_usdhc(imx_data) ? 1 << 29 : 1 << 27;
}
/*
* ROM code will change the bit burst_length_enable setting
- * to zero if this usdhc is choosed to boot system. Change
+ * to zero if this usdhc is chosen to boot system. Change
* it back here, otherwise it will impact the performance a
* lot. This bit is used to enable/disable the burst length
- * for the external AHB2AXI bridge, it's usefully especially
+ * for the external AHB2AXI bridge. It's useful especially
* for INCR transfer because without burst length indicator,
* the AHB2AXI bridge does not know the burst length in
* advance. And without burst length indicator, AHB INCR
| ESDHC_BURST_LEN_EN_INCR,
host->ioaddr + SDHCI_HOST_CONTROL);
/*
- * errata ESDHC_FLAG_ERR004536 fix for MX6Q TO1.2 and MX6DL
+ * erratum ESDHC_FLAG_ERR004536 fix for MX6Q TO1.2 and MX6DL
* TO1.1, it's harmless for MX6SL
*/
writel(readl(host->ioaddr + 0x6c) | BIT(7),
mmc_of_parse_voltage(np, &host->ocr_mask);
- /* sdr50 and sdr104 needs work on 1.8v signal voltage */
+ /* sdr50 and sdr104 need work on 1.8v signal voltage */
if ((boarddata->support_vsel) && esdhc_is_usdhc(imx_data) &&
!IS_ERR(imx_data->pins_default)) {
imx_data->pins_100mhz = pinctrl_lookup_state(imx_data->pinctrl,
dev_warn(mmc_dev(host->mmc),
"could not get ultra high speed state, work on normal mode\n");
/*
- * fall back to not support uhs by specify no 1.8v quirk
+ * fall back to not supporting uhs by specifying no
+ * 1.8v quirk
*/
host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
}
dev_warn(mmc_dev(host->mmc), "could not get default state\n");
if (imx_data->socdata->flags & ESDHC_FLAG_ENGCM07207)
- /* Fix errata ENGcm07207 present on i.MX25 and i.MX35 */
+ /* Fix erratum ENGcm07207 present on i.MX25 and i.MX35 */
host->quirks |= SDHCI_QUIRK_NO_MULTIBLOCK
| SDHCI_QUIRK_BROKEN_ADMA;
projects / platform / kernel / linux-rpi.git / commitdiff