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Diffstat (limited to 'arch/arm/mach-ux500/board-mop500-sdi.c')
-rw-r--r--arch/arm/mach-ux500/board-mop500-sdi.c61
1 files changed, 44 insertions, 17 deletions
diff --git a/arch/arm/mach-ux500/board-mop500-sdi.c b/arch/arm/mach-ux500/board-mop500-sdi.c
index 7c6cb4fa47a9..d0cb9e5eb87c 100644
--- a/arch/arm/mach-ux500/board-mop500-sdi.c
+++ b/arch/arm/mach-ux500/board-mop500-sdi.c
@@ -32,13 +32,32 @@
#define MCI_DATA31DIREN (1 << 5)
#define MCI_FBCLKEN (1 << 7)
+/* GPIO pins used by the sdi0 level shifter */
+static int sdi0_en = -1;
+static int sdi0_vsel = -1;
+
static u32 mop500_sdi0_vdd_handler(struct device *dev, unsigned int vdd,
unsigned char power_mode)
{
- if (power_mode == MMC_POWER_UP)
- gpio_set_value_cansleep(GPIO_SDMMC_EN, 1);
- else if (power_mode == MMC_POWER_OFF)
- gpio_set_value_cansleep(GPIO_SDMMC_EN, 0);
+ switch (power_mode) {
+ case MMC_POWER_UP:
+ case MMC_POWER_ON:
+ /*
+ * Level shifter voltage should depend on vdd to when deciding
+ * on either 1.8V or 2.9V. Once the decision has been made the
+ * level shifter must be disabled and re-enabled with a changed
+ * select signal in order to switch the voltage. Since there is
+ * no framework support yet for indicating 1.8V in vdd, use the
+ * default 2.9V.
+ */
+ gpio_direction_output(sdi0_vsel, 0);
+ gpio_direction_output(sdi0_en, 1);
+ break;
+ case MMC_POWER_OFF:
+ gpio_direction_output(sdi0_vsel, 0);
+ gpio_direction_output(sdi0_en, 0);
+ break;
+ }
return MCI_FBCLKEN | MCI_CMDDIREN | MCI_DATA0DIREN |
MCI_DATA2DIREN | MCI_DATA31DIREN;
@@ -67,8 +86,10 @@ static struct stedma40_chan_cfg mop500_sdi0_dma_cfg_tx = {
static struct mmci_platform_data mop500_sdi0_data = {
.vdd_handler = mop500_sdi0_vdd_handler,
.ocr_mask = MMC_VDD_29_30,
- .f_max = 100000000,
- .capabilities = MMC_CAP_4_BIT_DATA,
+ .f_max = 50000000,
+ .capabilities = MMC_CAP_4_BIT_DATA |
+ MMC_CAP_SD_HIGHSPEED |
+ MMC_CAP_MMC_HIGHSPEED,
.gpio_wp = -1,
#ifdef CONFIG_STE_DMA40
.dma_filter = stedma40_filter,
@@ -77,10 +98,6 @@ static struct mmci_platform_data mop500_sdi0_data = {
#endif
};
-/* GPIO pins used by the sdi0 level shifter */
-static int sdi0_en = -1;
-static int sdi0_vsel = -1;
-
static void sdi0_configure(void)
{
int ret;
@@ -140,7 +157,7 @@ static struct stedma40_chan_cfg mop500_sdi2_dma_cfg_tx = {
static struct mmci_platform_data mop500_sdi2_data = {
.ocr_mask = MMC_VDD_165_195,
- .f_max = 100000000,
+ .f_max = 50000000,
.capabilities = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
.gpio_cd = -1,
.gpio_wp = -1,
@@ -177,7 +194,7 @@ static struct stedma40_chan_cfg mop500_sdi4_dma_cfg_tx = {
static struct mmci_platform_data mop500_sdi4_data = {
.ocr_mask = MMC_VDD_29_30,
- .f_max = 100000000,
+ .f_max = 50000000,
.capabilities = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA |
MMC_CAP_MMC_HIGHSPEED,
.gpio_cd = -1,
@@ -199,17 +216,27 @@ void __init mop500_sdi_init(void)
/* PoP:ed eMMC on top of DB8500 v1.0 has problems with high speed */
if (!cpu_is_u8500v10())
mop500_sdi2_data.capabilities |= MMC_CAP_MMC_HIGHSPEED;
- db8500_add_sdi2(&mop500_sdi2_data, periphid);
+ /* sdi2 on snowball is in ATL_B mode for FSMC (LAN) */
+ if (!machine_is_snowball())
+ db8500_add_sdi2(&mop500_sdi2_data, periphid);
/* On-board eMMC */
db8500_add_sdi4(&mop500_sdi4_data, periphid);
- if (machine_is_hrefv60()) {
- mop500_sdi0_data.gpio_cd = HREFV60_SDMMC_CD_GPIO;
- sdi0_en = HREFV60_SDMMC_EN_GPIO;
- sdi0_vsel = HREFV60_SDMMC_1V8_3V_GPIO;
+ if (machine_is_hrefv60() || machine_is_snowball()) {
+ if (machine_is_hrefv60()) {
+ mop500_sdi0_data.gpio_cd = HREFV60_SDMMC_CD_GPIO;
+ sdi0_en = HREFV60_SDMMC_EN_GPIO;
+ sdi0_vsel = HREFV60_SDMMC_1V8_3V_GPIO;
+ } else if (machine_is_snowball()) {
+ mop500_sdi0_data.gpio_cd = SNOWBALL_SDMMC_CD_GPIO;
+ mop500_sdi0_data.cd_invert = true;
+ sdi0_en = SNOWBALL_SDMMC_EN_GPIO;
+ sdi0_vsel = SNOWBALL_SDMMC_1V8_3V_GPIO;
+ }
sdi0_configure();
}
+
/*
* On boards with the TC35892 GPIO expander, sdi0 will finally
* be added when the TC35892 initializes and calls