MMC: OMAP: Power functions modified to MMC multislot support

Modifications at power functions to MMC multislot support. This patch
also move board-specific code out of MMC OMAP driver.

Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 17d56b2b2881bbc52f3e0a5fb46b462d0e830339..41d185b1c7db525a340c2597855ba5b1c46c412f 100644 (file)
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -1004,54 +1004,27 @@ static void mmc_omap_request(struct mmc_host *mmc, struct mmc_request *req)
        mmc_omap_start_request(host, req);
 }
 
-static void innovator_fpga_socket_power(int on)
+static void mmc_omap_set_power(struct mmc_omap_slot *slot, int power_on,
+                               int vdd)
 {
-#if defined(CONFIG_MACH_OMAP_INNOVATOR) && defined(CONFIG_ARCH_OMAP15XX)
-       if (on) {
-               fpga_write(fpga_read(OMAP1510_FPGA_POWER) | (1 << 3),
-                    OMAP1510_FPGA_POWER);
-       } else {
-               fpga_write(fpga_read(OMAP1510_FPGA_POWER) & ~(1 << 3),
-                    OMAP1510_FPGA_POWER);
-       }
-#endif
-}
+       struct mmc_omap_host *host;
 
-/*
- * Turn the socket power on/off. Innovator uses FPGA, most boards
- * probably use GPIO.
- */
-static void mmc_omap_power(struct mmc_omap_host *host, int on)
-{
-       if (machine_is_sx1())
-               sx1_setmmcpower(on);
-       else if (on) {
-               if (machine_is_omap_innovator())
-                       innovator_fpga_socket_power(1);
-               else if (machine_is_omap_h2())
-                       tps65010_set_gpio_out_value(GPIO3, HIGH);
-               else if (machine_is_omap_h3())
-                       /* GPIO 4 of TPS65010 sends SD_EN signal */
-                       tps65010_set_gpio_out_value(GPIO4, HIGH);
-               else if (cpu_is_omap24xx()) {
-                       u16 reg = OMAP_MMC_READ(host, CON);
-                       OMAP_MMC_WRITE(host, CON, reg | (1 << 11));
-               } else
-                       if (host->power_pin >= 0)
-                               omap_set_gpio_dataout(host->power_pin, 1);
-       } else {
-               if (machine_is_omap_innovator())
-                       innovator_fpga_socket_power(0);
-               else if (machine_is_omap_h2())
-                       tps65010_set_gpio_out_value(GPIO3, LOW);
-               else if (machine_is_omap_h3())
-                       tps65010_set_gpio_out_value(GPIO4, LOW);
-               else if (cpu_is_omap24xx()) {
-                       u16 reg = OMAP_MMC_READ(host, CON);
-                       OMAP_MMC_WRITE(host, CON, reg & ~(1 << 11));
-               } else
-                       if (host->power_pin >= 0)
-                               omap_set_gpio_dataout(host->power_pin, 0);
+       host = slot->host;
+
+       if (slot->pdata->set_power != NULL)
+               slot->pdata->set_power(mmc_dev(slot->mmc), slot->id, power_on,
+                                       vdd);
+
+       if (cpu_is_omap24xx()) {
+               u16 w;
+
+               if (power_on) {
+                       w = OMAP_MMC_READ(host, CON);
+                       OMAP_MMC_WRITE(host, CON, w | (1 << 11));
+               } else {
+                       w = OMAP_MMC_READ(host, CON);
+                       OMAP_MMC_WRITE(host, CON, w & ~(1 << 11));
+               }
        }
 }
 
@@ -1090,23 +1063,31 @@ static void mmc_omap_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
        int i, dsor;
 
        dsor = mmc_omap_calc_divisor(mmc, ios);
-       host->bus_mode = ios->bus_mode;
-       host->hw_bus_mode = host->bus_mode;
+
+       mmc_omap_select_slot(slot, 0);
+
+       if (ios->vdd != slot->vdd)
+               slot->vdd = ios->vdd;
 
        switch (ios->power_mode) {
        case MMC_POWER_OFF:
-               mmc_omap_power(host, 0);
+               mmc_omap_set_power(slot, 0, ios->vdd);
                break;
        case MMC_POWER_UP:
                /* Cannot touch dsor yet, just power up MMC */
-               mmc_omap_power(host, 1);
-               return;
+               mmc_omap_set_power(slot, 1, ios->vdd);
+               goto exit;
        case MMC_POWER_ON:
                dsor |= 1 << 11;
                break;
        }
 
-       clk_enable(host->fclk);
+       if (slot->bus_mode != ios->bus_mode) {
+               if (slot->pdata->set_bus_mode != NULL)
+                       slot->pdata->set_bus_mode(mmc_dev(mmc), slot->id,
+                                                 ios->bus_mode);
+               slot->bus_mode = ios->bus_mode;
+       }
 
        /* On insanely high arm_per frequencies something sometimes
         * goes somehow out of sync, and the POW bit is not being set,
@@ -1114,6 +1095,7 @@ static void mmc_omap_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
         * Writing to the CON register twice seems to do the trick. */
        for (i = 0; i < 2; i++)
                OMAP_MMC_WRITE(host, CON, dsor);
+       slot->saved_con = dsor;
        if (ios->power_mode == MMC_POWER_ON) {
                /* Send clock cycles, poll completion */
                OMAP_MMC_WRITE(host, IE, 0);
@@ -1122,7 +1104,9 @@ static void mmc_omap_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                while ((OMAP_MMC_READ(host, STAT) & 1) == 0);
                OMAP_MMC_WRITE(host, STAT, 1);
        }
-       clk_disable(host->fclk);
+
+exit:
+       mmc_omap_release_slot(slot);
 }
 
 static int mmc_omap_get_ro(struct mmc_host *mmc)