diff options
| author | Patrice Chotard <patrice.chotard@st.com> | 2017-02-21 13:37:09 +0100 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-03-14 20:40:20 -0400 |
| commit | eee20f813272c2e731ba5f88c4eb099705894534 (patch) | |
| tree | 9e54bf59d362745c7db8fb2f40b81050d81f12de /arch | |
| parent | d4184952320a52e415d4814f1b3144e13ab94b82 (diff) | |
STiH410: Add STi SDHCI driver
Add SDHCI host controller found on STMicroelectronics SoCs
On some ST SoCs, i.e. STiH407/STiH410, the MMC devices can live
inside a dedicated flashSS sub-system that provides an extend subset
of registers that can be used to configure the Arasan MMC/SD Host
Controller.
This means, that the SDHCI Arasan Controller can be configured to be
eMMC4.5 or 4.3 spec compliant.
W/o these settings the SDHCI will configure and use the MMC/SD
controller with limited features e.g. PIO mode, no DMA, no HS etc.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-stih410/sdhci.h | 68 |
2 files changed, 70 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index bde969db03..20434dc0cc 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1098,6 +1098,8 @@ config ARCH_STI select CPU_V7 select DM select DM_SERIAL + select BLK + select DM_MMC help Support for STMicroelectronics STiH407/10 SoC family. This SoC is used on Linaro 96Board STiH410-B2260 diff --git a/arch/arm/include/asm/arch-stih410/sdhci.h b/arch/arm/include/asm/arch-stih410/sdhci.h new file mode 100644 index 0000000000..8cd77fc687 --- /dev/null +++ b/arch/arm/include/asm/arch-stih410/sdhci.h @@ -0,0 +1,68 @@ +/* + * (C) Copyright 2017 Patrice Chotard <patrice.chotard@st.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __STI_SDHCI_H__ +#define __STI_SDHCI_H__ + +#define FLASHSS_MMC_CORE_CONFIG_1 0x400 +#define FLASHSS_MMC_CORECFG_TIMEOUT_CLK_UNIT_MHZ BIT(24) +#define FLASHSS_MMC_CORECFG_TIMEOUT_CLK_FREQ_MIN BIT(12) + +#define STI_FLASHSS_MMC_CORE_CONFIG_1 \ + (FLASHSS_MMC_CORECFG_TIMEOUT_CLK_UNIT_MHZ | \ + FLASHSS_MMC_CORECFG_TIMEOUT_CLK_FREQ_MIN) + +#define FLASHSS_MMC_CORE_CONFIG_2 0x404 +#define FLASHSS_MMC_CORECFG_HIGH_SPEED BIT(28) +#define FLASHSS_MMC_CORECFG_8BIT_EMMC BIT(20) +#define MAX_BLK_LENGTH_1024 BIT(16) +#define BASE_CLK_FREQ_200 0xc8 + +#define STI_FLASHSS_MMC_CORE_CONFIG2 \ + (FLASHSS_MMC_CORECFG_HIGH_SPEED | \ + FLASHSS_MMC_CORECFG_8BIT_EMMC | \ + MAX_BLK_LENGTH_1024 | \ + BASE_CLK_FREQ_200 << 0) + +#define STI_FLASHSS_SDCARD_CORE_CONFIG2 \ + (FLASHSS_MMC_CORECFG_HIGH_SPEED | \ + MAX_BLK_LENGTH_1024 | \ + BASE_CLK_FREQ_200) + +#define FLASHSS_MMC_CORE_CONFIG_3 0x408 +#define FLASHSS_MMC_CORECFG_SLOT_TYPE_EMMC BIT(28) +#define FLASHSS_MMC_CORECFG_ASYNCH_INTR_SUPPORT BIT(20) +#define FLASHSS_MMC_CORECFG_3P3_VOLT BIT(8) +#define FLASHSS_MMC_CORECFG_SUSP_RES_SUPPORT BIT(4) +#define FLASHSS_MMC_CORECFG_SDMA BIT(0) + +#define STI_FLASHSS_MMC_CORE_CONFIG3 \ + (FLASHSS_MMC_CORECFG_SLOT_TYPE_EMMC | \ + FLASHSS_MMC_CORECFG_ASYNCH_INTR_SUPPORT | \ + FLASHSS_MMC_CORECFG_3P3_VOLT | \ + FLASHSS_MMC_CORECFG_SUSP_RES_SUPPORT | \ + FLASHSS_MMC_CORECFG_SDMA) + +#define STI_FLASHSS_SDCARD_CORE_CONFIG3 \ + (FLASHSS_MMC_CORECFG_ASYNCH_INTR_SUPPORT | \ + FLASHSS_MMC_CORECFG_3P3_VOLT | \ + FLASHSS_MMC_CORECFG_SUSP_RES_SUPPORT | \ + FLASHSS_MMC_CORECFG_SDMA) + +#define FLASHSS_MMC_CORE_CONFIG_4 0x40c +#define FLASHSS_MMC_CORECFG_D_DRIVER_SUPPORT BIT(20) +#define FLASHSS_MMC_CORECFG_C_DRIVER_SUPPORT BIT(16) +#define FLASHSS_MMC_CORECFG_A_DRIVER_SUPPORT BIT(12) + +#define STI_FLASHSS_MMC_CORE_CONFIG4 \ + (FLASHSS_MMC_CORECFG_D_DRIVER_SUPPORT | \ + FLASHSS_MMC_CORECFG_C_DRIVER_SUPPORT | \ + FLASHSS_MMC_CORECFG_A_DRIVER_SUPPORT) + +#define ST_MMC_CCONFIG_REG_5 0x210 +#define SYSCONF_MMC1_ENABLE_BIT 3 + +#endif /* _STI_SDHCI_H_ */ |