ARM: kirkwood: add mvsdio driver
This patch add Marvell kirkwood MVSDIO/MMC driver
and enable it for Sheevaplugs and OpenRD boards.
Signed-off-by: Gerald Kerma <drEagle@doukki.net>
Reviewed-by: Stefan Roese <sr@denx.de>
Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
diff --git a/include/mvebu_mmc.h b/include/mvebu_mmc.h
new file mode 100644
index 0000000..28d98fe
--- /dev/null
+++ b/include/mvebu_mmc.h
@@ -0,0 +1,278 @@
+/*
+ * Marvell MMC/SD/SDIO driver
+ *
+ * (C) Copyright 2012
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Maen Suleiman, Gerald Kerma
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __MVEBU_MMC_H__
+#define __MVEBU_MMC_H__
+
+/* needed for the mmc_cfg definition */
+#include <mmc.h>
+
+#define MMC_BLOCK_SIZE 512
+
+/*
+ * Clock rates
+ */
+
+#define MVEBU_MMC_CLOCKRATE_MAX 50000000
+#define MVEBU_MMC_BASE_DIV_MAX 0x7ff
+#define MVEBU_MMC_BASE_FAST_CLOCK CONFIG_SYS_TCLK
+#define MVEBU_MMC_BASE_FAST_CLK_100 100000000
+#define MVEBU_MMC_BASE_FAST_CLK_200 200000000
+
+/* SDIO register */
+#define SDIO_SYS_ADDR_LOW 0x000
+#define SDIO_SYS_ADDR_HI 0x004
+#define SDIO_BLK_SIZE 0x008
+#define SDIO_BLK_COUNT 0x00c
+#define SDIO_ARG_LOW 0x010
+#define SDIO_ARG_HI 0x014
+#define SDIO_XFER_MODE 0x018
+#define SDIO_CMD 0x01c
+#define SDIO_RSP(i) (0x020 + ((i)<<2))
+#define SDIO_RSP0 0x020
+#define SDIO_RSP1 0x024
+#define SDIO_RSP2 0x028
+#define SDIO_RSP3 0x02c
+#define SDIO_RSP4 0x030
+#define SDIO_RSP5 0x034
+#define SDIO_RSP6 0x038
+#define SDIO_RSP7 0x03c
+#define SDIO_BUF_DATA_PORT 0x040
+#define SDIO_RSVED 0x044
+#define SDIO_HW_STATE 0x048
+#define SDIO_PRESENT_STATE0 0x048
+#define SDIO_PRESENT_STATE1 0x04c
+#define SDIO_HOST_CTRL 0x050
+#define SDIO_BLK_GAP_CTRL 0x054
+#define SDIO_CLK_CTRL 0x058
+#define SDIO_SW_RESET 0x05c
+#define SDIO_NOR_INTR_STATUS 0x060
+#define SDIO_ERR_INTR_STATUS 0x064
+#define SDIO_NOR_STATUS_EN 0x068
+#define SDIO_ERR_STATUS_EN 0x06c
+#define SDIO_NOR_INTR_EN 0x070
+#define SDIO_ERR_INTR_EN 0x074
+#define SDIO_AUTOCMD12_ERR_STATUS 0x078
+#define SDIO_CURR_BYTE_LEFT 0x07c
+#define SDIO_CURR_BLK_LEFT 0x080
+#define SDIO_AUTOCMD12_ARG_LOW 0x084
+#define SDIO_AUTOCMD12_ARG_HI 0x088
+#define SDIO_AUTOCMD12_INDEX 0x08c
+#define SDIO_AUTO_RSP(i) (0x090 + ((i)<<2))
+#define SDIO_AUTO_RSP0 0x090
+#define SDIO_AUTO_RSP1 0x094
+#define SDIO_AUTO_RSP2 0x098
+#define SDIO_CLK_DIV 0x128
+
+#define WINDOW_CTRL(i) (0x108 + ((i) << 3))
+#define WINDOW_BASE(i) (0x10c + ((i) << 3))
+
+/* SDIO_PRESENT_STATE */
+#define CARD_BUSY (1 << 1)
+#define CMD_INHIBIT (1 << 0)
+#define CMD_TXACTIVE (1 << 8)
+#define CMD_RXACTIVE (1 << 9)
+#define CMD_AUTOCMD12ACTIVE (1 << 14)
+#define CMD_BUS_BUSY (CMD_AUTOCMD12ACTIVE | \
+ CMD_RXACTIVE | \
+ CMD_TXACTIVE | \
+ CMD_INHIBIT | \
+ CARD_BUSY)
+
+/*
+ * SDIO_CMD
+ */
+
+#define SDIO_CMD_RSP_NONE (0 << 0)
+#define SDIO_CMD_RSP_136 (1 << 0)
+#define SDIO_CMD_RSP_48 (2 << 0)
+#define SDIO_CMD_RSP_48BUSY (3 << 0)
+
+#define SDIO_CMD_CHECK_DATACRC16 (1 << 2)
+#define SDIO_CMD_CHECK_CMDCRC (1 << 3)
+#define SDIO_CMD_INDX_CHECK (1 << 4)
+#define SDIO_CMD_DATA_PRESENT (1 << 5)
+#define SDIO_UNEXPECTED_RESP (1 << 7)
+
+#define SDIO_CMD_INDEX(x) ((x) << 8)
+
+/*
+ * SDIO_XFER_MODE
+ */
+
+#define SDIO_XFER_MODE_STOP_CLK (1 << 5)
+#define SDIO_XFER_MODE_HW_WR_DATA_EN (1 << 1)
+#define SDIO_XFER_MODE_AUTO_CMD12 (1 << 2)
+#define SDIO_XFER_MODE_INT_CHK_EN (1 << 3)
+#define SDIO_XFER_MODE_TO_HOST (1 << 4)
+#define SDIO_XFER_MODE_DMA (0 << 6)
+
+/*
+ * SDIO_HOST_CTRL
+ */
+
+#define SDIO_HOST_CTRL_PUSH_PULL_EN (1 << 0)
+
+#define SDIO_HOST_CTRL_CARD_TYPE_MEM_ONLY (0 << 1)
+#define SDIO_HOST_CTRL_CARD_TYPE_IO_ONLY (1 << 1)
+#define SDIO_HOST_CTRL_CARD_TYPE_IO_MEM_COMBO (2 << 1)
+#define SDIO_HOST_CTRL_CARD_TYPE_IO_MMC (3 << 1)
+#define SDIO_HOST_CTRL_CARD_TYPE_MASK (3 << 1)
+
+#define SDIO_HOST_CTRL_BIG_ENDIAN (1 << 3)
+#define SDIO_HOST_CTRL_LSB_FIRST (1 << 4)
+#define SDIO_HOST_CTRL_DATA_WIDTH_1_BIT (0 << 9)
+#define SDIO_HOST_CTRL_DATA_WIDTH_4_BITS (1 << 9)
+#define SDIO_HOST_CTRL_HI_SPEED_EN (1 << 10)
+
+#define SDIO_HOST_CTRL_TMOUT_MAX 0xf
+#define SDIO_HOST_CTRL_TMOUT_MASK (0xf << 11)
+#define SDIO_HOST_CTRL_TMOUT(x) ((x) << 11)
+#define SDIO_HOST_CTRL_TMOUT_EN (1 << 15)
+
+/*
+ * SDIO_SW_RESET
+ */
+
+#define SDIO_SW_RESET_NOW (1 << 8)
+
+/*
+ * Normal interrupt status bits
+ */
+
+#define SDIO_NOR_ERROR (1 << 15)
+#define SDIO_NOR_UNEXP_RSP (1 << 14)
+#define SDIO_NOR_AUTOCMD12_DONE (1 << 13)
+#define SDIO_NOR_SUSPEND_ON (1 << 12)
+#define SDIO_NOR_LMB_FF_8W_AVAIL (1 << 11)
+#define SDIO_NOR_LMB_FF_8W_FILLED (1 << 10)
+#define SDIO_NOR_READ_WAIT_ON (1 << 9)
+#define SDIO_NOR_CARD_INT (1 << 8)
+#define SDIO_NOR_READ_READY (1 << 5)
+#define SDIO_NOR_WRITE_READY (1 << 4)
+#define SDIO_NOR_DMA_INI (1 << 3)
+#define SDIO_NOR_BLK_GAP_EVT (1 << 2)
+#define SDIO_NOR_XFER_DONE (1 << 1)
+#define SDIO_NOR_CMD_DONE (1 << 0)
+
+/*
+ * Error status bits
+ */
+
+#define SDIO_ERR_CRC_STATUS (1 << 14)
+#define SDIO_ERR_CRC_STARTBIT (1 << 13)
+#define SDIO_ERR_CRC_ENDBIT (1 << 12)
+#define SDIO_ERR_RESP_TBIT (1 << 11)
+#define SDIO_ERR_XFER_SIZE (1 << 10)
+#define SDIO_ERR_CMD_STARTBIT (1 << 9)
+#define SDIO_ERR_AUTOCMD12 (1 << 8)
+#define SDIO_ERR_DATA_ENDBIT (1 << 6)
+#define SDIO_ERR_DATA_CRC (1 << 5)
+#define SDIO_ERR_DATA_TIMEOUT (1 << 4)
+#define SDIO_ERR_CMD_INDEX (1 << 3)
+#define SDIO_ERR_CMD_ENDBIT (1 << 2)
+#define SDIO_ERR_CMD_CRC (1 << 1)
+#define SDIO_ERR_CMD_TIMEOUT (1 << 0)
+/* enable all for polling */
+#define SDIO_POLL_MASK 0xffff
+
+/*
+ * CMD12 error status bits
+ */
+
+#define SDIO_AUTOCMD12_ERR_NOTEXE (1 << 0)
+#define SDIO_AUTOCMD12_ERR_TIMEOUT (1 << 1)
+#define SDIO_AUTOCMD12_ERR_CRC (1 << 2)
+#define SDIO_AUTOCMD12_ERR_ENDBIT (1 << 3)
+#define SDIO_AUTOCMD12_ERR_INDEX (1 << 4)
+#define SDIO_AUTOCMD12_ERR_RESP_T_BIT (1 << 5)
+#define SDIO_AUTOCMD12_ERR_RESP_STARTBIT (1 << 6)
+
+#define MMC_RSP_PRESENT (1 << 0)
+/* 136 bit response */
+#define MMC_RSP_136 (1 << 1)
+/* expect valid crc */
+#define MMC_RSP_CRC (1 << 2)
+/* card may send busy */
+#define MMC_RSP_BUSY (1 << 3)
+/* response contains opcode */
+#define MMC_RSP_OPCODE (1 << 4)
+
+#define MMC_BUSMODE_OPENDRAIN 1
+#define MMC_BUSMODE_PUSHPULL 2
+
+#define MMC_BUS_WIDTH_1 0
+#define MMC_BUS_WIDTH_4 2
+#define MMC_BUS_WIDTH_8 3
+
+/* Can the host do 4 bit transfers */
+#define MMC_CAP_4_BIT_DATA (1 << 0)
+/* Can do MMC high-speed timing */
+#define MMC_CAP_MMC_HIGHSPEED (1 << 1)
+/* Can do SD high-speed timing */
+#define MMC_CAP_SD_HIGHSPEED (1 << 2)
+/* Can signal pending SDIO IRQs */
+#define MMC_CAP_SDIO_IRQ (1 << 3)
+/* Talks only SPI protocols */
+#define MMC_CAP_SPI (1 << 4)
+/* Needs polling for card-detection */
+#define MMC_CAP_NEEDS_POLL (1 << 5)
+/* Can the host do 8 bit transfers */
+#define MMC_CAP_8_BIT_DATA (1 << 6)
+
+/* Nonremovable e.g. eMMC */
+#define MMC_CAP_NONREMOVABLE (1 << 8)
+/* Waits while card is busy */
+#define MMC_CAP_WAIT_WHILE_BUSY (1 << 9)
+/* Allow erase/trim commands */
+#define MMC_CAP_ERASE (1 << 10)
+/* can support DDR mode at 1.8V */
+#define MMC_CAP_1_8V_DDR (1 << 11)
+/* can support DDR mode at 1.2V */
+#define MMC_CAP_1_2V_DDR (1 << 12)
+/* Can power off after boot */
+#define MMC_CAP_POWER_OFF_CARD (1 << 13)
+/* CMD14/CMD19 bus width ok */
+#define MMC_CAP_BUS_WIDTH_TEST (1 << 14)
+/* Host supports UHS SDR12 mode */
+#define MMC_CAP_UHS_SDR12 (1 << 15)
+/* Host supports UHS SDR25 mode */
+#define MMC_CAP_UHS_SDR25 (1 << 16)
+/* Host supports UHS SDR50 mode */
+#define MMC_CAP_UHS_SDR50 (1 << 17)
+/* Host supports UHS SDR104 mode */
+#define MMC_CAP_UHS_SDR104 (1 << 18)
+/* Host supports UHS DDR50 mode */
+#define MMC_CAP_UHS_DDR50 (1 << 19)
+/* Host supports Driver Type A */
+#define MMC_CAP_DRIVER_TYPE_A (1 << 23)
+/* Host supports Driver Type C */
+#define MMC_CAP_DRIVER_TYPE_C (1 << 24)
+/* Host supports Driver Type D */
+#define MMC_CAP_DRIVER_TYPE_D (1 << 25)
+/* CMD23 supported. */
+#define MMC_CAP_CMD23 (1 << 30)
+/* Hardware reset */
+#define MMC_CAP_HW_RESET (1 << 31)
+
+struct mvebu_mmc_cfg {
+ u32 mvebu_mmc_base;
+ u32 mvebu_mmc_clk;
+ u8 max_bus_width;
+ struct mmc_config cfg;
+};
+
+/*
+ * Functions prototypes
+ */
+
+int mvebu_mmc_init(bd_t *bis);
+
+#endif /* __MVEBU_MMC_H__ */