/* Definitons for use with the tmio_mmc.c * * (c) 2004 Ian Molton <spyro@f2s.com> * (c) 2007 Ian Molton <spyro@f2s.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * */ #include <linux/highmem.h> #define CNF_CMD 0x04 #define CNF_CTL_BASE 0x10 #define CNF_INT_PIN 0x3d #define CNF_STOP_CLK_CTL 0x40 #define CNF_GCLK_CTL 0x41 #define CNF_SD_CLK_MODE 0x42 #define CNF_PIN_STATUS 0x44 #define CNF_PWR_CTL_1 0x48 #define CNF_PWR_CTL_2 0x49 #define CNF_PWR_CTL_3 0x4a #define CNF_CARD_DETECT_MODE 0x4c #define CNF_SD_SLOT 0x50 #define CNF_EXT_GCLK_CTL_1 0xf0 #define CNF_EXT_GCLK_CTL_2 0xf1 #define CNF_EXT_GCLK_CTL_3 0xf9 #define CNF_SD_LED_EN_1 0xfa #define CNF_SD_LED_EN_2 0xfe #define SDCREN 0x2 /* Enable access to MMC CTL regs. (flag in COMMAND_REG)*/ #define CTL_SD_CMD 0x00 #define CTL_ARG_REG 0x04 #define CTL_STOP_INTERNAL_ACTION 0x08 #define CTL_XFER_BLK_COUNT 0xa #define CTL_RESPONSE 0x0c #define CTL_STATUS 0x1c #define CTL_IRQ_MASK 0x20 #define CTL_SD_CARD_CLK_CTL 0x24 #define CTL_SD_XFER_LEN 0x26 #define CTL_SD_MEM_CARD_OPT 0x28 #define CTL_SD_ERROR_DETAIL_STATUS 0x2c #define CTL_SD_DATA_PORT 0x30 #define CTL_TRANSACTION_CTL 0x34 #define CTL_RESET_SD 0xe0 #define CTL_SDIO_REGS 0x100 #define CTL_CLK_AND_WAIT_CTL 0x138 #define CTL_RESET_SDIO 0x1e0 /* Definitions for values the CTRL_STATUS register can take. */ #define TMIO_STAT_CMDRESPEND 0x00000001 #define TMIO_STAT_DATAEND 0x00000004 #define TMIO_STAT_CARD_REMOVE 0x00000008 #define TMIO_STAT_CARD_INSERT 0x00000010 #define TMIO_STAT_SIGSTATE 0x00000020 #define TMIO_STAT_WRPROTECT 0x00000080 #define TMIO_STAT_CARD_REMOVE_A 0x00000100 #define TMIO_STAT_CARD_INSERT_A 0x00000200 #define TMIO_STAT_SIGSTATE_A 0x00000400 #define TMIO_STAT_CMD_IDX_ERR 0x00010000 #define TMIO_STAT_CRCFAIL 0x00020000 #define TMIO_STAT_STOPBIT_ERR 0x00040000 #define TMIO_STAT_DATATIMEOUT 0x00080000 #define TMIO_STAT_RXOVERFLOW 0x00100000 #define TMIO_STAT_TXUNDERRUN 0x00200000 #define TMIO_STAT_CMDTIMEOUT 0x00400000 #define TMIO_STAT_RXRDY 0x01000000 #define TMIO_STAT_TXRQ 0x02000000 #define TMIO_STAT_ILL_FUNC 0x20000000 #define TMIO_STAT_CMD_BUSY 0x40000000 #define TMIO_STAT_ILL_ACCESS 0x80000000 /* Define some IRQ masks */ /* This is the mask used at reset by the chip */ #define TMIO_MASK_ALL 0x837f031d #define TMIO_MASK_READOP (TMIO_STAT_RXRDY | TMIO_STAT_DATAEND | \ TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT) #define TMIO_MASK_WRITEOP (TMIO_STAT_TXRQ | TMIO_STAT_DATAEND | \ TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT) #define TMIO_MASK_CMD (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT | \ TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT) #define TMIO_MASK_IRQ (TMIO_MASK_READOP | TMIO_MASK_WRITEOP | TMIO_MASK_CMD) #define enable_mmc_irqs(ctl, i) \ do { \ u32 mask;\ mask = tmio_ioread32((ctl) + CTL_IRQ_MASK); \ mask &= ~((i) & TMIO_MASK_IRQ); \ tmio_iowrite32(mask, (ctl) + CTL_IRQ_MASK); \ } while (0) #define disable_mmc_irqs(ctl, i) \ do { \ u32 mask;\ mask = tmio_ioread32((ctl) + CTL_IRQ_MASK); \ mask |= ((i) & TMIO_MASK_IRQ); \ tmio_iowrite32(mask, (ctl) + CTL_IRQ_MASK); \ } while (0) #define ack_mmc_irqs(ctl, i) \ do { \ u32 mask;\ mask = tmio_ioread32((ctl) + CTL_STATUS); \ mask &= ~((i) & TMIO_MASK_IRQ); \ tmio_iowrite32(mask, (ctl) + CTL_STATUS); \ } while (0) struct tmio_mmc_host { void __iomem *cnf; void __iomem *ctl; struct mmc_command *cmd; struct mmc_request *mrq; struct mmc_data *data; struct mmc_host *mmc; int irq; /* pio related stuff */ struct scatterlist *sg_ptr; unsigned int sg_len; unsigned int sg_off; }; #include <linux/scatterlist.h> #include <linux/blkdev.h> static inline void tmio_mmc_init_sg(struct tmio_mmc_host *host, struct mmc_data *data) { host->sg_len = data->sg_len; host->sg_ptr = data->sg; host->sg_off = 0; } static inline int tmio_mmc_next_sg(struct tmio_mmc_host *host) { host->sg_ptr = sg_next(host->sg_ptr); host->sg_off = 0; return --host->sg_len; } static inline char *tmio_mmc_kmap_atomic(struct tmio_mmc_host *host, unsigned long *flags) { struct scatterlist *sg = host->sg_ptr; local_irq_save(*flags); return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset; } static inline void tmio_mmc_kunmap_atomic(struct tmio_mmc_host *host, unsigned long *flags) { kunmap_atomic(sg_page(host->sg_ptr), KM_BIO_SRC_IRQ); local_irq_restore(*flags); } #ifdef CONFIG_MMC_DEBUG #define STATUS_TO_TEXT(a) \ do { \ if (status & TMIO_STAT_##a) \ printk(#a); \ } while (0) void pr_debug_status(u32 status) { printk(KERN_DEBUG "status: %08x = ", status); STATUS_TO_TEXT(CARD_REMOVE); STATUS_TO_TEXT(CARD_INSERT); STATUS_TO_TEXT(SIGSTATE); STATUS_TO_TEXT(WRPROTECT); STATUS_TO_TEXT(CARD_REMOVE_A); STATUS_TO_TEXT(CARD_INSERT_A); STATUS_TO_TEXT(SIGSTATE_A); STATUS_TO_TEXT(CMD_IDX_ERR); STATUS_TO_TEXT(STOPBIT_ERR); STATUS_TO_TEXT(ILL_FUNC); STATUS_TO_TEXT(CMD_BUSY); STATUS_TO_TEXT(CMDRESPEND); STATUS_TO_TEXT(DATAEND); STATUS_TO_TEXT(CRCFAIL); STATUS_TO_TEXT(DATATIMEOUT); STATUS_TO_TEXT(CMDTIMEOUT); STATUS_TO_TEXT(RXOVERFLOW); STATUS_TO_TEXT(TXUNDERRUN); STATUS_TO_TEXT(RXRDY); STATUS_TO_TEXT(TXRQ); STATUS_TO_TEXT(ILL_ACCESS); printk("\n"); } #else #define pr_debug_status(s) do { } while (0) #endif