Some MXS based boards do not implement the card-detect signal. Allow user to specify alternate card-detect implementation.
Signed-off-by: Marek Vasut marex@denx.de Cc: Otavio Salvador otavio@ossystems.com.br Cc: Fabio Estevam fabio.estevam@freescale.com Cc: Stefano Babic sbabic@denx.de --- arch/arm/include/asm/arch-mxs/sys_proto.h | 2 +- board/bluegiga/apx4devkit/apx4devkit.c | 2 +- board/denx/m28evk/m28evk.c | 2 +- board/freescale/mx28evk/mx28evk.c | 2 +- board/schulercontrol/sc_sps_1/sc_sps_1.c | 2 +- drivers/mmc/mxsmmc.c | 16 ++++++++++++++-- 6 files changed, 19 insertions(+), 7 deletions(-)
diff --git a/arch/arm/include/asm/arch-mxs/sys_proto.h b/arch/arm/include/asm/arch-mxs/sys_proto.h index 8aaf196..5bafde5 100644 --- a/arch/arm/include/asm/arch-mxs/sys_proto.h +++ b/arch/arm/include/asm/arch-mxs/sys_proto.h @@ -31,7 +31,7 @@ int mxs_wait_mask_clr(struct mxs_register_32 *reg, uint32_t mask, unsigned int timeout);
-int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int)); +int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int), int (*cd)(int));
#ifdef CONFIG_SPL_BUILD
diff --git a/board/bluegiga/apx4devkit/apx4devkit.c b/board/bluegiga/apx4devkit/apx4devkit.c index 029b973..5927693 100644 --- a/board/bluegiga/apx4devkit/apx4devkit.c +++ b/board/bluegiga/apx4devkit/apx4devkit.c @@ -69,7 +69,7 @@ int board_init(void) #ifdef CONFIG_CMD_MMC int board_mmc_init(bd_t *bis) { - return mxsmmc_initialize(bis, 0, NULL); + return mxsmmc_initialize(bis, 0, NULL, NULL); } #endif
diff --git a/board/denx/m28evk/m28evk.c b/board/denx/m28evk/m28evk.c index 26f31d6..d93efaf 100644 --- a/board/denx/m28evk/m28evk.c +++ b/board/denx/m28evk/m28evk.c @@ -93,7 +93,7 @@ int board_mmc_init(bd_t *bis) /* Turn on the power to the card. */ gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 0);
- return mxsmmc_initialize(bis, 0, m28_mmc_wp); + return mxsmmc_initialize(bis, 0, m28_mmc_wp, NULL); } #endif
diff --git a/board/freescale/mx28evk/mx28evk.c b/board/freescale/mx28evk/mx28evk.c index ad66f29..de7231b 100644 --- a/board/freescale/mx28evk/mx28evk.c +++ b/board/freescale/mx28evk/mx28evk.c @@ -94,7 +94,7 @@ int board_mmc_init(bd_t *bis) /* Configure MMC0 Power Enable */ gpio_direction_output(MX28_PAD_PWM3__GPIO_3_28, 0);
- return mxsmmc_initialize(bis, 0, mx28evk_mmc_wp); + return mxsmmc_initialize(bis, 0, mx28evk_mmc_wp, NULL); } #endif
diff --git a/board/schulercontrol/sc_sps_1/sc_sps_1.c b/board/schulercontrol/sc_sps_1/sc_sps_1.c index fac7e30..8138237 100644 --- a/board/schulercontrol/sc_sps_1/sc_sps_1.c +++ b/board/schulercontrol/sc_sps_1/sc_sps_1.c @@ -78,7 +78,7 @@ int dram_init(void) #ifdef CONFIG_CMD_MMC int board_mmc_init(bd_t *bis) { - return mxsmmc_initialize(bis, 0, NULL); + return mxsmmc_initialize(bis, 0, NULL, NULL); } #endif
diff --git a/drivers/mmc/mxsmmc.c b/drivers/mmc/mxsmmc.c index 9d71202..023dbd5 100644 --- a/drivers/mmc/mxsmmc.c +++ b/drivers/mmc/mxsmmc.c @@ -49,12 +49,23 @@ struct mxsmmc_priv { struct mxs_ssp_regs *regs; uint32_t buswidth; int (*mmc_is_wp)(int); + int (*mmc_cd)(int); struct mxs_dma_desc *desc; };
#define MXSMMC_MAX_TIMEOUT 10000 #define MXSMMC_SMALL_TRANSFER 512
+static int mxsmmc_cd(struct mxsmmc_priv *priv) +{ + struct mxs_ssp_regs *ssp_regs = priv->regs; + + if (priv->mmc_cd) + return priv->mmc_cd(priv->id); + + return !(readl(&ssp_regs->hw_ssp_status) & SSP_STATUS_CARD_DETECT); +} + static int mxsmmc_send_cmd_pio(struct mxsmmc_priv *priv, struct mmc_data *data) { struct mxs_ssp_regs *ssp_regs = priv->regs; @@ -166,7 +177,7 @@ mxsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data) }
/* See if card is present */ - if (readl(&ssp_regs->hw_ssp_status) & SSP_STATUS_CARD_DETECT) { + if (!mxsmmc_cd(priv)) { printf("MMC%d: No card detected!\n", mmc->block_dev.dev); return NO_CARD_ERR; } @@ -357,7 +368,7 @@ static int mxsmmc_init(struct mmc *mmc) return 0; }
-int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int)) +int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int), int (*cd)(int)) { struct mmc *mmc = NULL; struct mxsmmc_priv *priv = NULL; @@ -395,6 +406,7 @@ int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int)) return ret;
priv->mmc_is_wp = wp; + priv->mmc_cd = cd; priv->id = id; priv->regs = mxs_ssp_regs_by_bus(id);