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| author | Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> | 2018-05-29 20:03:11 +0530 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2018-05-31 13:50:39 +0200 |
| commit | 843337089ea7002173ad8f522a8cbe396abd312c (patch) | |
| tree | 9480c19eef93bb663bf1ef8c20c54d3ab313ed2c /drivers | |
| parent | 434f9d454eb1a17bb7f5cdb21167ccbe7e41da39 (diff) | |
| download | u-boot-843337089ea7002173ad8f522a8cbe396abd312c.zip u-boot-843337089ea7002173ad8f522a8cbe396abd312c.tar.gz u-boot-843337089ea7002173ad8f522a8cbe396abd312c.tar.bz2 | |
mmc: zynqmp: Add HS200 modes support for ZynqMP
This patch adds HS200 suuport for ZynqMP and enables
the same for ZC1751 DC1 board which has eMMC on it.
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/zynq_sdhci.c | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/mmc/zynq_sdhci.c b/drivers/mmc/zynq_sdhci.c index 1f6d053..5b6d525 100644 --- a/drivers/mmc/zynq_sdhci.c +++ b/drivers/mmc/zynq_sdhci.c @@ -32,12 +32,21 @@ struct arasan_sdhci_priv { }; #if defined(CONFIG_ARCH_ZYNQMP) +#define MMC_HS200_BUS_SPEED 5 + static const u8 mode2timing[] = { - [UHS_SDR12] = UHS_SDR12_BUS_SPEED, - [UHS_SDR25] = UHS_SDR25_BUS_SPEED, - [UHS_SDR50] = UHS_SDR50_BUS_SPEED, - [UHS_SDR104] = UHS_SDR104_BUS_SPEED, - [UHS_DDR50] = UHS_DDR50_BUS_SPEED, + [MMC_LEGACY] = UHS_SDR12_BUS_SPEED, + [SD_LEGACY] = UHS_SDR12_BUS_SPEED, + [MMC_HS] = HIGH_SPEED_BUS_SPEED, + [SD_HS] = HIGH_SPEED_BUS_SPEED, + [MMC_HS_52] = HIGH_SPEED_BUS_SPEED, + [MMC_DDR_52] = HIGH_SPEED_BUS_SPEED, + [UHS_SDR12] = UHS_SDR12_BUS_SPEED, + [UHS_SDR25] = UHS_SDR25_BUS_SPEED, + [UHS_SDR50] = UHS_SDR50_BUS_SPEED, + [UHS_DDR50] = UHS_DDR50_BUS_SPEED, + [UHS_SDR104] = UHS_SDR104_BUS_SPEED, + [MMC_HS_200] = MMC_HS200_BUS_SPEED, }; #define SDHCI_HOST_CTRL2 0x3E @@ -160,9 +169,6 @@ static void arasan_sdhci_set_tapdelay(struct sdhci_host *host) struct mmc *mmc = (struct mmc *)host->mmc; u8 uhsmode; - if (!IS_SD(mmc)) - return; - uhsmode = mode2timing[mmc->selected_mode]; if (uhsmode >= UHS_SDR25_BUS_SPEED) @@ -175,6 +181,9 @@ static void arasan_sdhci_set_control_reg(struct sdhci_host *host) struct mmc *mmc = (struct mmc *)host->mmc; u32 reg; + if (!IS_SD(mmc)) + return; + if (mmc->signal_voltage == MMC_SIGNAL_VOLTAGE_180) { reg = sdhci_readw(host, SDHCI_HOST_CTRL2); reg |= SDHCI_18V_SIGNAL; |