PXA: Add MMC driver using the generic MMC framework

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>

1 files changed, 154 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-pxa/regs-mmc.h b/arch/arm/include/asm/arch-pxa/regs-mmc.h
new file mode 100644
index 0000000000..b5c9b3b26f
--- /dev/null
+++ b/arch/arm/include/asm/arch-pxa/regs-mmc.h
@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __REGS_MMC_H__
+#define __REGS_MMC_H__
+
+#define MMC0_BASE	0x41100000
+#define MMC1_BASE	0x42000000
+
+int pxa_mmc_register(int card_index);
+
+struct pxa_mmc_regs {
+	uint32_t	strpcl;
+	uint32_t	stat;
+	uint32_t	clkrt;
+	uint32_t	spi;
+	uint32_t	cmdat;
+	uint32_t	resto;
+	uint32_t	rdto;
+	uint32_t	blklen;
+	uint32_t	nob;
+	uint32_t	prtbuf;
+	uint32_t	i_mask;
+	uint32_t	i_reg;
+	uint32_t	cmd;
+	uint32_t	argh;
+	uint32_t	argl;
+	uint32_t	res;
+	uint32_t	rxfifo;
+	uint32_t	txfifo;
+};
+
+/* MMC_STRPCL */
+#define MMC_STRPCL_STOP_CLK		(1 << 0)
+#define MMC_STRPCL_START_CLK		(1 << 1)
+
+/* MMC_STAT */
+#define MMC_STAT_END_CMD_RES		(1 << 13)
+#define MMC_STAT_PRG_DONE		(1 << 12)
+#define MMC_STAT_DATA_TRAN_DONE		(1 << 11)
+#define MMC_STAT_CLK_EN			(1 << 8)
+#define MMC_STAT_RECV_FIFO_FULL		(1 << 7)
+#define MMC_STAT_XMIT_FIFO_EMPTY	(1 << 6)
+#define MMC_STAT_RES_CRC_ERROR		(1 << 5)
+#define MMC_STAT_SPI_READ_ERROR_TOKEN	(1 << 4)
+#define MMC_STAT_CRC_READ_ERROR		(1 << 3)
+#define MMC_STAT_CRC_WRITE_ERROR	(1 << 2)
+#define MMC_STAT_TIME_OUT_RESPONSE	(1 << 1)
+#define MMC_STAT_READ_TIME_OUT		(1 << 0)
+
+/* MMC_CLKRT */
+#define MMC_CLKRT_20MHZ			0
+#define MMC_CLKRT_10MHZ			1
+#define MMC_CLKRT_5MHZ			2
+#define MMC_CLKRT_2_5MHZ		3
+#define MMC_CLKRT_1_25MHZ		4
+#define MMC_CLKRT_0_625MHZ		5
+#define MMC_CLKRT_0_3125MHZ		6
+
+/* MMC_SPI */
+#define MMC_SPI_EN			(1 << 0)
+#define MMC_SPI_CS_EN			(1 << 2)
+#define MMC_SPI_CS_ADDRESS		(1 << 3)
+#define MMC_SPI_CRC_ON			(1 << 1)
+
+/* MMC_CMDAT */
+#define MMC_CMDAT_SD_4DAT		(1 << 8)
+#define MMC_CMDAT_MMC_DMA_EN		(1 << 7)
+#define MMC_CMDAT_INIT			(1 << 6)
+#define MMC_CMDAT_BUSY			(1 << 5)
+#define MMC_CMDAT_BCR			(MMC_CMDAT_BUSY | MMC_CMDAT_INIT)
+#define MMC_CMDAT_STREAM		(1 << 4)
+#define MMC_CMDAT_WRITE			(1 << 3)
+#define MMC_CMDAT_DATA_EN		(1 << 2)
+#define MMC_CMDAT_R0			0
+#define MMC_CMDAT_R1			1
+#define MMC_CMDAT_R2			2
+#define MMC_CMDAT_R3			3
+
+/* MMC_RESTO */
+#define MMC_RES_TO_MAX_MASK		0x7f
+
+/* MMC_RDTO */
+#define MMC_READ_TO_MAX_MASK		0xffff
+
+/* MMC_BLKLEN */
+#define MMC_BLK_LEN_MAX_MASK		0x3ff
+
+/* MMC_PRTBUF */
+#define MMC_PRTBUF_BUF_PART_FULL	(1 << 0)
+
+/* MMC_I_MASK */
+#define MMC_I_MASK_TXFIFO_WR_REQ	(1 << 6)
+#define MMC_I_MASK_RXFIFO_RD_REQ	(1 << 5)
+#define MMC_I_MASK_CLK_IS_OFF		(1 << 4)
+#define MMC_I_MASK_STOP_CMD		(1 << 3)
+#define MMC_I_MASK_END_CMD_RES		(1 << 2)
+#define MMC_I_MASK_PRG_DONE		(1 << 1)
+#define MMC_I_MASK_DATA_TRAN_DONE	(1 << 0)
+#define MMC_I_MASK_ALL			0x7f
+
+
+/* MMC_I_REG */
+#define MMC_I_REG_TXFIFO_WR_REQ		(1 << 6)
+#define MMC_I_REG_RXFIFO_RD_REQ		(1 << 5)
+#define MMC_I_REG_CLK_IS_OFF		(1 << 4)
+#define MMC_I_REG_STOP_CMD		(1 << 3)
+#define MMC_I_REG_END_CMD_RES		(1 << 2)
+#define MMC_I_REG_PRG_DONE		(1 << 1)
+#define MMC_I_REG_DATA_TRAN_DONE	(1 << 0)
+
+/* MMC_CMD */
+#define MMC_CMD_INDEX_MAX		0x6f
+
+#define MMC_R1_IDLE_STATE		0x01
+#define MMC_R1_ERASE_STATE		0x02
+#define MMC_R1_ILLEGAL_CMD		0x04
+#define MMC_R1_COM_CRC_ERR		0x08
+#define MMC_R1_ERASE_SEQ_ERR		0x01
+#define MMC_R1_ADDR_ERR			0x02
+#define MMC_R1_PARAM_ERR		0x04
+
+#define MMC_R1B_WP_ERASE_SKIP		0x0002
+#define MMC_R1B_ERR			0x0004
+#define MMC_R1B_CC_ERR			0x0008
+#define MMC_R1B_CARD_ECC_ERR		0x0010
+#define MMC_R1B_WP_VIOLATION		0x0020
+#define MMC_R1B_ERASE_PARAM		0x0040
+#define MMC_R1B_OOR			0x0080
+#define MMC_R1B_IDLE_STATE		0x0100
+#define MMC_R1B_ERASE_RESET		0x0200
+#define MMC_R1B_ILLEGAL_CMD		0x0400
+#define MMC_R1B_COM_CRC_ERR		0x0800
+#define MMC_R1B_ERASE_SEQ_ERR		0x1000
+#define MMC_R1B_ADDR_ERR		0x2000
+#define MMC_R1B_PARAM_ERR		0x4000
+
+#endif	/* __REGS_MMC_H__ */