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rkemmc: shutdown: card go pre-idle state

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kfx
2013-10-29 15:44:32 +08:00
parent e0258457a7
commit 07c53b6694
1 changed files with 8 additions and 0 deletions
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8
drivers/mmc/host/rkemmc.c
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@@ -546,6 +546,7 @@ static void __rk_mmc_start_request(struct rk_mmc *host, struct mmc_command *cmd)
host->bus_test = 1;
else
host->bus_test = 0;
mmc_dbg(host,"start command: CMD%d, ARGR=0x%08x CMDR=0x%08x\n",
cmd->opcode, cmd->arg, cmdflags);
rk_mmc_start_command(host, cmd, cmdflags);
@@ -568,6 +569,7 @@ static void rk_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
WARN_ON(host->mrq);
WARN_ON(host->state != STATE_IDLE);
WARN_ON(host->shutdown == 1);
spin_lock_bh(&host->lock);
host->state = STATE_SENDING_CMD;
@@ -1409,6 +1411,12 @@ static void rk_mmc_shutdown(struct platform_device *pdev)
//struct mmc_host *mmc = host->mmc;
mmc_info(host, "shutdown\n");
host->shutdown = 1;
//card go pre-idle state
mmc_writel(host, CMDARG, 0xF0F0F0F0);
mmc_writel(host, CMD, 0 | MMC_CMD_INIT | MMC_CMD_START | MMC_USE_HOLD_REG);
mdelay(10);
#if 0
host->shutdown = 1;
mmc_remove_host(host->mmc);