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mmc: rk: differ force jtag for rk3036 & rk312x

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Signed-off-by: lintao <lintao@rock-chips.com>
This commit is contained in:
lintao 2015-01-20 15:11:18 +08:00
parent b956cbf913
commit 74f7cbcdca
1 changed files with 13 additions and 2 deletions
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15
drivers/mmc/host/rk_sdmmc.c
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@ -1544,6 +1544,7 @@ static int dw_mci_get_cd(struct mmc_host *mmc)
struct dw_mci_board *brd = slot->host->pdata;
struct dw_mci *host = slot->host;
int gpio_cd = mmc_gpio_get_cd(mmc);
int force_jtag_bit, force_jtag_reg;
int gpio_val;
int irq;
@ -1553,18 +1554,28 @@ static int dw_mci_get_cd(struct mmc_host *mmc)
irq = gpio_to_irq(gpio_cd);
if (gpio_is_valid(gpio_cd)) {
gpio_val = gpio_get_value(gpio_cd);
if (soc_is_rk3036()) {
force_jtag_bit = 11;
force_jtag_reg = RK312X_GRF_SOC_CON0;
} else if (soc_is_rk3126() || soc_is_rk3126b()) {
force_jtag_reg = RK312X_GRF_SOC_CON0;
force_jtag_bit = 8;
}
msleep(10);
if (gpio_val == gpio_get_value(gpio_cd)) {
gpio_cd = gpio_get_value(gpio_cd) == 0 ? 1 : 0;
if (gpio_cd == 0) {
irq_set_irq_type(irq, IRQF_TRIGGER_LOW | IRQF_ONESHOT);
/* Enable force_jtag wihtout card in slot, ONLY for NCD-package */
grf_writel((0x1 << 24) | (1 << 8), RK312X_GRF_SOC_CON0);
grf_writel((0x1 << (force_jtag_bit + 16)) | (1 << force_jtag_bit),
force_jtag_reg);
dw_mci_ctrl_all_reset(host);
} else {
irq_set_irq_type(irq, IRQF_TRIGGER_HIGH | IRQF_ONESHOT);
/* Really card detected: SHOULD disable force_jtag */
grf_writel((0x1 << 24) | (0 << 8), RK312X_GRF_SOC_CON0);
grf_writel((0x1 << (force_jtag_bit + 16)) | (0 << force_jtag_bit),
force_jtag_reg);
}
} else {
/* Jitter */