ARMV7: Restructure OMAP mmc driver to allow code sharing between OMAP3 and OMAP4

The architecture independent header is moved to drivers/mmc, and the architecture
dependent headers reside in asm/arch-omap3 and asm/arch-omap4

Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

2 files changed, 171 insertions, 242 deletions

diff --git a/arch/arm/include/asm/arch-omap3/mmc.h b/arch/arm/include/asm/arch-omap3/mmc.h
deleted file mode 100644
index 196ffdc..0000000
--- a/arch/arm/include/asm/arch-omap3/mmc.h
+++ /dev/null
@@ -1,242 +0,0 @@
-/*
- * (C) Copyright 2008
- * Texas Instruments, <www.ti.com>
- * Syed Mohammed Khasim <khasim@ti.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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's version 2 of
- * the License.
- *
- * 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 MMC_H
-#define MMC_H
-
-#include "mmc_host_def.h"
-
-/* Responses */
-#define RSP_TYPE_NONE	(RSP_TYPE_NORSP   | CCCE_NOCHECK | CICE_NOCHECK)
-#define RSP_TYPE_R1	(RSP_TYPE_LGHT48  | CCCE_CHECK   | CICE_CHECK)
-#define RSP_TYPE_R1B	(RSP_TYPE_LGHT48B | CCCE_CHECK   | CICE_CHECK)
-#define RSP_TYPE_R2	(RSP_TYPE_LGHT136 | CCCE_CHECK   | CICE_NOCHECK)
-#define RSP_TYPE_R3	(RSP_TYPE_LGHT48  | CCCE_NOCHECK | CICE_NOCHECK)
-#define RSP_TYPE_R4	(RSP_TYPE_LGHT48  | CCCE_NOCHECK | CICE_NOCHECK)
-#define RSP_TYPE_R5	(RSP_TYPE_LGHT48  | CCCE_CHECK   | CICE_CHECK)
-#define RSP_TYPE_R6	(RSP_TYPE_LGHT48  | CCCE_CHECK   | CICE_CHECK)
-#define RSP_TYPE_R7	(RSP_TYPE_LGHT48  | CCCE_CHECK   | CICE_CHECK)
-
-/* All supported commands */
-#define MMC_CMD0	(INDEX(0)  | RSP_TYPE_NONE | DP_NO_DATA | DDIR_WRITE)
-#define MMC_CMD1	(INDEX(1)  | RSP_TYPE_R3   | DP_NO_DATA | DDIR_WRITE)
-#define MMC_CMD2	(INDEX(2)  | RSP_TYPE_R2   | DP_NO_DATA | DDIR_WRITE)
-#define MMC_CMD3	(INDEX(3)  | RSP_TYPE_R1   | DP_NO_DATA | DDIR_WRITE)
-#define MMC_SDCMD3	(INDEX(3)  | RSP_TYPE_R6   | DP_NO_DATA | DDIR_WRITE)
-#define MMC_CMD4	(INDEX(4)  | RSP_TYPE_NONE | DP_NO_DATA | DDIR_WRITE)
-#define MMC_CMD6	(INDEX(6)  | RSP_TYPE_R1B  | DP_NO_DATA | DDIR_WRITE)
-#define MMC_CMD7_SELECT	(INDEX(7)  | RSP_TYPE_R1B  | DP_NO_DATA | DDIR_WRITE)
-#define MMC_CMD7_DESELECT (INDEX(7)| RSP_TYPE_NONE | DP_NO_DATA | DDIR_WRITE)
-#define MMC_CMD8	(INDEX(8)  | RSP_TYPE_R1   | DP_DATA    | DDIR_READ)
-#define MMC_SDCMD8	(INDEX(8)  | RSP_TYPE_R7   | DP_NO_DATA | DDIR_WRITE)
-#define MMC_CMD9	(INDEX(9)  | RSP_TYPE_R2   | DP_NO_DATA | DDIR_WRITE)
-#define MMC_CMD12	(INDEX(12) | RSP_TYPE_R1B  | DP_NO_DATA | DDIR_WRITE)
-#define MMC_CMD13	(INDEX(13) | RSP_TYPE_R1   | DP_NO_DATA | DDIR_WRITE)
-#define MMC_CMD15	(INDEX(15) | RSP_TYPE_NONE | DP_NO_DATA | DDIR_WRITE)
-#define MMC_CMD16	(INDEX(16) | RSP_TYPE_R1   | DP_NO_DATA | DDIR_WRITE)
-#define MMC_CMD17	(INDEX(17) | RSP_TYPE_R1   | DP_DATA    | DDIR_READ)
-#define MMC_CMD24	(INDEX(24) | RSP_TYPE_R1   | DP_DATA    | DDIR_WRITE)
-#define MMC_ACMD6	(INDEX(6)  | RSP_TYPE_R1   | DP_NO_DATA | DDIR_WRITE)
-#define MMC_ACMD41	(INDEX(41) | RSP_TYPE_R3   | DP_NO_DATA | DDIR_WRITE)
-#define MMC_ACMD51	(INDEX(51) | RSP_TYPE_R1   | DP_DATA    | DDIR_READ)
-#define MMC_CMD55	(INDEX(55) | RSP_TYPE_R1   | DP_NO_DATA | DDIR_WRITE)
-
-#define MMC_AC_CMD_RCA_MASK	(unsigned int)(0xFFFF << 16)
-#define MMC_BC_CMD_DSR_MASK	(unsigned int)(0xFFFF << 16)
-#define MMC_DSR_DEFAULT		0x0404
-#define SD_CMD8_CHECK_PATTERN	0xAA
-#define SD_CMD8_2_7_3_6_V_RANGE	(0x01 << 8)
-
-/* Clock Configurations and Macros */
-
-#define MMC_CLOCK_REFERENCE		96
-#define MMC_RELATIVE_CARD_ADDRESS	0x1234
-#define MMC_INIT_SEQ_CLK		(MMC_CLOCK_REFERENCE * 1000 / 80)
-#define MMC_400kHz_CLK			(MMC_CLOCK_REFERENCE * 1000 / 400)
-#define CLKDR(r, f, u)			((((r)*100) / ((f)*(u))) + 1)
-#define CLKD(f, u)			(CLKDR(MMC_CLOCK_REFERENCE, f, u))
-
-#define MMC_OCR_REG_ACCESS_MODE_MASK	(0x3 << 29)
-#define MMC_OCR_REG_ACCESS_MODE_BYTE 	(0x0 << 29)
-#define MMC_OCR_REG_ACCESS_MODE_SECTOR	(0x2 << 29)
-
-#define MMC_OCR_REG_HOST_CAPACITY_SUPPORT_MASK		(0x1 << 30)
-#define MMC_OCR_REG_HOST_CAPACITY_SUPPORT_BYTE		(0x0 << 30)
-#define MMC_OCR_REG_HOST_CAPACITY_SUPPORT_SECTOR	(0x1 << 30)
-
-#define MMC_SD2_CSD_C_SIZE_LSB_MASK	0xFFFF
-#define MMC_SD2_CSD_C_SIZE_MSB_MASK	0x003F
-#define MMC_SD2_CSD_C_SIZE_MSB_OFFSET	16
-#define MMC_CSD_C_SIZE_LSB_MASK		0x0003
-#define MMC_CSD_C_SIZE_MSB_MASK		0x03FF
-#define MMC_CSD_C_SIZE_MSB_OFFSET	2
-
-#define MMC_CSD_TRAN_SPEED_UNIT_MASK	(0x07 << 0)
-#define MMC_CSD_TRAN_SPEED_FACTOR_MASK	(0x0F << 3)
-#define MMC_CSD_TRAN_SPEED_UNIT_100MHZ	(0x3 << 0)
-#define MMC_CSD_TRAN_SPEED_FACTOR_1_0	(0x01 << 3)
-#define MMC_CSD_TRAN_SPEED_FACTOR_8_0	(0x0F << 3)
-
-typedef struct {
-	unsigned not_used:1;
-	unsigned crc:7;
-	unsigned ecc:2;
-	unsigned file_format:2;
-	unsigned tmp_write_protect:1;
-	unsigned perm_write_protect:1;
-	unsigned copy:1;
-	unsigned file_format_grp:1;
-	unsigned content_prot_app:1;
-	unsigned reserved_1:4;
-	unsigned write_bl_partial:1;
-	unsigned write_bl_len:4;
-	unsigned r2w_factor:3;
-	unsigned default_ecc:2;
-	unsigned wp_grp_enable:1;
-	unsigned wp_grp_size:5;
-	unsigned erase_grp_mult:5;
-	unsigned erase_grp_size:5;
-	unsigned c_size_mult:3;
-	unsigned vdd_w_curr_max:3;
-	unsigned vdd_w_curr_min:3;
-	unsigned vdd_r_curr_max:3;
-	unsigned vdd_r_curr_min:3;
-	unsigned c_size_lsb:2;
-	unsigned c_size_msb:10;
-	unsigned reserved_2:2;
-	unsigned dsr_imp:1;
-	unsigned read_blk_misalign:1;
-	unsigned write_blk_misalign:1;
-	unsigned read_bl_partial:1;
-	unsigned read_bl_len:4;
-	unsigned ccc:12;
-	unsigned tran_speed:8;
-	unsigned nsac:8;
-	unsigned taac:8;
-	unsigned reserved_3:2;
-	unsigned spec_vers:4;
-	unsigned csd_structure:2;
-} mmc_csd_reg_t;
-
-/* csd for sd2.0 */
-typedef struct {
-	unsigned not_used:1;
-	unsigned crc:7;
-	unsigned reserved_1:2;
-	unsigned file_format:2;
-	unsigned tmp_write_protect:1;
-	unsigned perm_write_protect:1;
-	unsigned copy:1;
-	unsigned file_format_grp:1;
-	unsigned reserved_2:5;
-	unsigned write_bl_partial:1;
-	unsigned write_bl_len:4;
-	unsigned r2w_factor:3;
-	unsigned reserved_3:2;
-	unsigned wp_grp_enable:1;
-	unsigned wp_grp_size:7;
-	unsigned sector_size:7;
-	unsigned erase_blk_len:1;
-	unsigned reserved_4:1;
-	unsigned c_size_lsb:16;
-	unsigned c_size_msb:6;
-	unsigned reserved_5:6;
-	unsigned dsr_imp:1;
-	unsigned read_blk_misalign:1;
-	unsigned write_blk_misalign:1;
-	unsigned read_bl_partial:1;
-	unsigned read_bl_len:4;
-	unsigned ccc:12;
-	unsigned tran_speed:8;
-	unsigned nsac:8;
-	unsigned taac:8;
-	unsigned reserved_6:6;
-	unsigned csd_structure:2;
-} mmc_sd2_csd_reg_t;
-
-/* extended csd - 512 bytes long */
-typedef struct {
-	unsigned char reserved_1[181];
-	unsigned char erasedmemorycontent;
-	unsigned char reserved_2;
-	unsigned char buswidthmode;
-	unsigned char reserved_3;
-	unsigned char highspeedinterfacetiming;
-	unsigned char reserved_4;
-	unsigned char powerclass;
-	unsigned char reserved_5;
-	unsigned char commandsetrevision;
-	unsigned char reserved_6;
-	unsigned char commandset;
-	unsigned char extendedcsdrevision;
-	unsigned char reserved_7;
-	unsigned char csdstructureversion;
-	unsigned char reserved_8;
-	unsigned char cardtype;
-	unsigned char reserved_9[3];
-	unsigned char powerclass_52mhz_1_95v;
-	unsigned char powerclass_26mhz_1_95v;
-	unsigned char powerclass_52mhz_3_6v;
-	unsigned char powerclass_26mhz_3_6v;
-	unsigned char reserved_10;
-	unsigned char minreadperf_4b_26mhz;
-	unsigned char minwriteperf_4b_26mhz;
-	unsigned char minreadperf_8b_26mhz_4b_52mhz;
-	unsigned char minwriteperf_8b_26mhz_4b_52mhz;
-	unsigned char minreadperf_8b_52mhz;
-	unsigned char minwriteperf_8b_52mhz;
-	unsigned char reserved_11;
-	unsigned int sectorcount;
-	unsigned char reserved_12[288];
-	unsigned char supportedcommandsets;
-	unsigned char reserved_13[7];
-} mmc_extended_csd_reg_t;
-
-/* mmc sd responce */
-typedef struct {
-	unsigned int ocr;
-} mmc_resp_r3;
-
-typedef struct {
-	unsigned short cardstatus;
-	unsigned short newpublishedrca;
-} mmc_resp_r6;
-
-typedef union {
-	unsigned int resp[4];
-	mmc_resp_r3 r3;
-	mmc_resp_r6 r6;
-	mmc_csd_reg_t Card_CSD;
-} mmc_resp_t;
-
-extern mmc_card_data mmc_dev;
-
-unsigned char mmc_lowlevel_init(void);
-unsigned char mmc_send_command(unsigned int cmd, unsigned int arg,
-			       unsigned int *response);
-unsigned char mmc_setup_clock(unsigned int iclk, unsigned short clkd);
-unsigned char mmc_set_opendrain(unsigned char state);
-unsigned char mmc_read_data(unsigned int *output_buf);
-
-#endif /* MMC_H */
diff --git a/arch/arm/include/asm/arch-omap4/mmc_host_def.h b/arch/arm/include/asm/arch-omap4/mmc_host_def.h
new file mode 100644
index 0000000..e5d8b53
--- /dev/null
+++ b/arch/arm/include/asm/arch-omap4/mmc_host_def.h
@@ -0,0 +1,171 @@
+/*
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ * Syed Mohammed Khasim <khasim@ti.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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's version 2 of
+ * the License.
+ *
+ * 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 MMC_HOST_DEF_H
+#define MMC_HOST_DEF_H
+
+/*
+ * OMAP HSMMC register definitions
+ */
+
+#define OMAP_HSMMC1_BASE	0x4809C100
+#define OMAP_HSMMC2_BASE	0x480B4100
+#define OMAP_HSMMC3_BASE	0x480AD100
+
+typedef struct hsmmc {
+	unsigned char res1[0x10];
+	unsigned int sysconfig;		/* 0x10 */
+	unsigned int sysstatus;		/* 0x14 */
+	unsigned char res2[0x14];
+	unsigned int con;		/* 0x2C */
+	unsigned char res3[0xD4];
+	unsigned int blk;		/* 0x104 */
+	unsigned int arg;		/* 0x108 */
+	unsigned int cmd;		/* 0x10C */
+	unsigned int rsp10;		/* 0x110 */
+	unsigned int rsp32;		/* 0x114 */
+	unsigned int rsp54;		/* 0x118 */
+	unsigned int rsp76;		/* 0x11C */
+	unsigned int data;		/* 0x120 */
+	unsigned int pstate;		/* 0x124 */
+	unsigned int hctl;		/* 0x128 */
+	unsigned int sysctl;		/* 0x12C */
+	unsigned int stat;		/* 0x130 */
+	unsigned int ie;		/* 0x134 */
+	unsigned char res4[0x8];
+	unsigned int capa;		/* 0x140 */
+} hsmmc_t;
+
+/*
+ * OMAP HS MMC Bit definitions
+ */
+#define MMC_SOFTRESET			(0x1 << 1)
+#define RESETDONE			(0x1 << 0)
+#define NOOPENDRAIN			(0x0 << 0)
+#define OPENDRAIN			(0x1 << 0)
+#define OD				(0x1 << 0)
+#define INIT_NOINIT			(0x0 << 1)
+#define INIT_INITSTREAM			(0x1 << 1)
+#define HR_NOHOSTRESP			(0x0 << 2)
+#define STR_BLOCK			(0x0 << 3)
+#define MODE_FUNC			(0x0 << 4)
+#define DW8_1_4BITMODE			(0x0 << 5)
+#define MIT_CTO				(0x0 << 6)
+#define CDP_ACTIVEHIGH			(0x0 << 7)
+#define WPP_ACTIVEHIGH			(0x0 << 8)
+#define RESERVED_MASK			(0x3 << 9)
+#define CTPL_MMC_SD			(0x0 << 11)
+#define BLEN_512BYTESLEN		(0x200 << 0)
+#define NBLK_STPCNT			(0x0 << 16)
+#define DE_DISABLE			(0x0 << 0)
+#define BCE_DISABLE			(0x0 << 1)
+#define ACEN_DISABLE			(0x0 << 2)
+#define DDIR_OFFSET			(4)
+#define DDIR_MASK			(0x1 << 4)
+#define DDIR_WRITE			(0x0 << 4)
+#define DDIR_READ			(0x1 << 4)
+#define MSBS_SGLEBLK			(0x0 << 5)
+#define RSP_TYPE_OFFSET			(16)
+#define RSP_TYPE_MASK			(0x3 << 16)
+#define RSP_TYPE_NORSP			(0x0 << 16)
+#define RSP_TYPE_LGHT136		(0x1 << 16)
+#define RSP_TYPE_LGHT48			(0x2 << 16)
+#define RSP_TYPE_LGHT48B		(0x3 << 16)
+#define CCCE_NOCHECK			(0x0 << 19)
+#define CCCE_CHECK			(0x1 << 19)
+#define CICE_NOCHECK			(0x0 << 20)
+#define CICE_CHECK			(0x1 << 20)
+#define DP_OFFSET			(21)
+#define DP_MASK				(0x1 << 21)
+#define DP_NO_DATA			(0x0 << 21)
+#define DP_DATA				(0x1 << 21)
+#define CMD_TYPE_NORMAL			(0x0 << 22)
+#define INDEX_OFFSET			(24)
+#define INDEX_MASK			(0x3f << 24)
+#define INDEX(i)			(i << 24)
+#define DATI_MASK			(0x1 << 1)
+#define DATI_CMDDIS			(0x1 << 1)
+#define DTW_1_BITMODE			(0x0 << 1)
+#define DTW_4_BITMODE			(0x1 << 1)
+#define SDBP_PWROFF			(0x0 << 8)
+#define SDBP_PWRON			(0x1 << 8)
+#define SDVS_1V8			(0x5 << 9)
+#define SDVS_3V0			(0x6 << 9)
+#define ICE_MASK			(0x1 << 0)
+#define ICE_STOP			(0x0 << 0)
+#define ICS_MASK			(0x1 << 1)
+#define ICS_NOTREADY			(0x0 << 1)
+#define ICE_OSCILLATE			(0x1 << 0)
+#define CEN_MASK			(0x1 << 2)
+#define CEN_DISABLE			(0x0 << 2)
+#define CEN_ENABLE			(0x1 << 2)
+#define CLKD_OFFSET			(6)
+#define CLKD_MASK			(0x3FF << 6)
+#define DTO_MASK			(0xF << 16)
+#define DTO_15THDTO			(0xE << 16)
+#define SOFTRESETALL			(0x1 << 24)
+#define CC_MASK				(0x1 << 0)
+#define TC_MASK				(0x1 << 1)
+#define BWR_MASK			(0x1 << 4)
+#define BRR_MASK			(0x1 << 5)
+#define ERRI_MASK			(0x1 << 15)
+#define IE_CC				(0x01 << 0)
+#define IE_TC				(0x01 << 1)
+#define IE_BWR				(0x01 << 4)
+#define IE_BRR				(0x01 << 5)
+#define IE_CTO				(0x01 << 16)
+#define IE_CCRC				(0x01 << 17)
+#define IE_CEB				(0x01 << 18)
+#define IE_CIE				(0x01 << 19)
+#define IE_DTO				(0x01 << 20)
+#define IE_DCRC				(0x01 << 21)
+#define IE_DEB				(0x01 << 22)
+#define IE_CERR				(0x01 << 28)
+#define IE_BADA				(0x01 << 29)
+
+#define VS30_3V0SUP			(1 << 25)
+#define VS18_1V8SUP			(1 << 26)
+
+/* Driver definitions */
+#define MMCSD_SECTOR_SIZE		512
+#define MMC_CARD			0
+#define SD_CARD				1
+#define BYTE_MODE			0
+#define SECTOR_MODE			1
+#define CLK_INITSEQ			0
+#define CLK_400KHZ			1
+#define CLK_MISC			2
+
+typedef struct {
+	unsigned int card_type;
+	unsigned int version;
+	unsigned int mode;
+	unsigned int size;
+	unsigned int RCA;
+} mmc_card_data;
+
+#define mmc_reg_out(addr, mask, val)\
+	writel((readl(addr) & (~(mask))) | ((val) & (mask)), (addr))
+
+#endif /* MMC_HOST_DEF_H */