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path: root/drivers/mmc/host/sdhci-msm.c
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Diffstat (limited to 'drivers/mmc/host/sdhci-msm.c')
-rw-r--r--drivers/mmc/host/sdhci-msm.c510
1 files changed, 384 insertions, 126 deletions
diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index 646bf377ba77..3cc8bfee6c18 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -33,16 +33,11 @@
#define CORE_MCI_GENERICS 0x70
#define SWITCHABLE_SIGNALING_VOLTAGE BIT(29)
-#define CORE_HC_MODE 0x78
#define HC_MODE_EN 0x1
#define CORE_POWER 0x0
#define CORE_SW_RST BIT(7)
#define FF_CLK_SW_RST_DIS BIT(13)
-#define CORE_PWRCTL_STATUS 0xdc
-#define CORE_PWRCTL_MASK 0xe0
-#define CORE_PWRCTL_CLEAR 0xe4
-#define CORE_PWRCTL_CTL 0xe8
#define CORE_PWRCTL_BUS_OFF BIT(0)
#define CORE_PWRCTL_BUS_ON BIT(1)
#define CORE_PWRCTL_IO_LOW BIT(2)
@@ -63,17 +58,13 @@
#define CORE_CDR_EXT_EN BIT(19)
#define CORE_DLL_PDN BIT(29)
#define CORE_DLL_RST BIT(30)
-#define CORE_DLL_CONFIG 0x100
#define CORE_CMD_DAT_TRACK_SEL BIT(0)
-#define CORE_DLL_STATUS 0x108
-#define CORE_DLL_CONFIG_2 0x1b4
#define CORE_DDR_CAL_EN BIT(0)
#define CORE_FLL_CYCLE_CNT BIT(18)
#define CORE_DLL_CLOCK_DISABLE BIT(21)
-#define CORE_VENDOR_SPEC 0x10c
-#define CORE_VENDOR_SPEC_POR_VAL 0xa1c
+#define CORE_VENDOR_SPEC_POR_VAL 0xa1c
#define CORE_CLK_PWRSAVE BIT(1)
#define CORE_HC_MCLK_SEL_DFLT (2 << 8)
#define CORE_HC_MCLK_SEL_HS400 (3 << 8)
@@ -111,17 +102,14 @@
#define CORE_CDC_SWITCH_BYPASS_OFF BIT(0)
#define CORE_CDC_SWITCH_RC_EN BIT(1)
-#define CORE_DDR_200_CFG 0x184
#define CORE_CDC_T4_DLY_SEL BIT(0)
#define CORE_CMDIN_RCLK_EN BIT(1)
#define CORE_START_CDC_TRAFFIC BIT(6)
-#define CORE_VENDOR_SPEC3 0x1b0
+
#define CORE_PWRSAVE_DLL BIT(3)
-#define CORE_DDR_CONFIG 0x1b8
#define DDR_CONFIG_POR_VAL 0x80040853
-#define CORE_VENDOR_SPEC_CAPABILITIES0 0x11c
#define INVALID_TUNING_PHASE -1
#define SDHCI_MSM_MIN_CLOCK 400000
@@ -137,6 +125,117 @@
/* Timeout value to avoid infinite waiting for pwr_irq */
#define MSM_PWR_IRQ_TIMEOUT_MS 5000
+#define msm_host_readl(msm_host, host, offset) \
+ msm_host->var_ops->msm_readl_relaxed(host, offset)
+
+#define msm_host_writel(msm_host, val, host, offset) \
+ msm_host->var_ops->msm_writel_relaxed(val, host, offset)
+
+struct sdhci_msm_offset {
+ u32 core_hc_mode;
+ u32 core_mci_data_cnt;
+ u32 core_mci_status;
+ u32 core_mci_fifo_cnt;
+ u32 core_mci_version;
+ u32 core_generics;
+ u32 core_testbus_config;
+ u32 core_testbus_sel2_bit;
+ u32 core_testbus_ena;
+ u32 core_testbus_sel2;
+ u32 core_pwrctl_status;
+ u32 core_pwrctl_mask;
+ u32 core_pwrctl_clear;
+ u32 core_pwrctl_ctl;
+ u32 core_sdcc_debug_reg;
+ u32 core_dll_config;
+ u32 core_dll_status;
+ u32 core_vendor_spec;
+ u32 core_vendor_spec_adma_err_addr0;
+ u32 core_vendor_spec_adma_err_addr1;
+ u32 core_vendor_spec_func2;
+ u32 core_vendor_spec_capabilities0;
+ u32 core_ddr_200_cfg;
+ u32 core_vendor_spec3;
+ u32 core_dll_config_2;
+ u32 core_ddr_config;
+ u32 core_ddr_config_2;
+};
+
+static const struct sdhci_msm_offset sdhci_msm_v5_offset = {
+ .core_mci_data_cnt = 0x35c,
+ .core_mci_status = 0x324,
+ .core_mci_fifo_cnt = 0x308,
+ .core_mci_version = 0x318,
+ .core_generics = 0x320,
+ .core_testbus_config = 0x32c,
+ .core_testbus_sel2_bit = 3,
+ .core_testbus_ena = (1 << 31),
+ .core_testbus_sel2 = (1 << 3),
+ .core_pwrctl_status = 0x240,
+ .core_pwrctl_mask = 0x244,
+ .core_pwrctl_clear = 0x248,
+ .core_pwrctl_ctl = 0x24c,
+ .core_sdcc_debug_reg = 0x358,
+ .core_dll_config = 0x200,
+ .core_dll_status = 0x208,
+ .core_vendor_spec = 0x20c,
+ .core_vendor_spec_adma_err_addr0 = 0x214,
+ .core_vendor_spec_adma_err_addr1 = 0x218,
+ .core_vendor_spec_func2 = 0x210,
+ .core_vendor_spec_capabilities0 = 0x21c,
+ .core_ddr_200_cfg = 0x224,
+ .core_vendor_spec3 = 0x250,
+ .core_dll_config_2 = 0x254,
+ .core_ddr_config = 0x258,
+ .core_ddr_config_2 = 0x25c,
+};
+
+static const struct sdhci_msm_offset sdhci_msm_mci_offset = {
+ .core_hc_mode = 0x78,
+ .core_mci_data_cnt = 0x30,
+ .core_mci_status = 0x34,
+ .core_mci_fifo_cnt = 0x44,
+ .core_mci_version = 0x050,
+ .core_generics = 0x70,
+ .core_testbus_config = 0x0cc,
+ .core_testbus_sel2_bit = 4,
+ .core_testbus_ena = (1 << 3),
+ .core_testbus_sel2 = (1 << 4),
+ .core_pwrctl_status = 0xdc,
+ .core_pwrctl_mask = 0xe0,
+ .core_pwrctl_clear = 0xe4,
+ .core_pwrctl_ctl = 0xe8,
+ .core_sdcc_debug_reg = 0x124,
+ .core_dll_config = 0x100,
+ .core_dll_status = 0x108,
+ .core_vendor_spec = 0x10c,
+ .core_vendor_spec_adma_err_addr0 = 0x114,
+ .core_vendor_spec_adma_err_addr1 = 0x118,
+ .core_vendor_spec_func2 = 0x110,
+ .core_vendor_spec_capabilities0 = 0x11c,
+ .core_ddr_200_cfg = 0x184,
+ .core_vendor_spec3 = 0x1b0,
+ .core_dll_config_2 = 0x1b4,
+ .core_ddr_config = 0x1b8,
+ .core_ddr_config_2 = 0x1bc,
+};
+
+struct sdhci_msm_variant_ops {
+ u32 (*msm_readl_relaxed)(struct sdhci_host *host, u32 offset);
+ void (*msm_writel_relaxed)(u32 val, struct sdhci_host *host,
+ u32 offset);
+};
+
+/*
+ * From V5, register spaces have changed. Wrap this info in a structure
+ * and choose the data_structure based on version info mentioned in DT.
+ */
+struct sdhci_msm_variant_info {
+ bool mci_removed;
+ const struct sdhci_msm_variant_ops *var_ops;
+ const struct sdhci_msm_offset *offset;
+};
+
struct sdhci_msm_host {
struct platform_device *pdev;
void __iomem *core_mem; /* MSM SDCC mapped address */
@@ -156,8 +255,53 @@ struct sdhci_msm_host {
wait_queue_head_t pwr_irq_wait;
bool pwr_irq_flag;
u32 caps_0;
+ bool mci_removed;
+ const struct sdhci_msm_variant_ops *var_ops;
+ const struct sdhci_msm_offset *offset;
};
+static const struct sdhci_msm_offset *sdhci_priv_msm_offset(struct sdhci_host *host)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
+
+ return msm_host->offset;
+}
+
+/*
+ * APIs to read/write to vendor specific registers which were there in the
+ * core_mem region before MCI was removed.
+ */
+static u32 sdhci_msm_mci_variant_readl_relaxed(struct sdhci_host *host,
+ u32 offset)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
+
+ return readl_relaxed(msm_host->core_mem + offset);
+}
+
+static u32 sdhci_msm_v5_variant_readl_relaxed(struct sdhci_host *host,
+ u32 offset)
+{
+ return readl_relaxed(host->ioaddr + offset);
+}
+
+static void sdhci_msm_mci_variant_writel_relaxed(u32 val,
+ struct sdhci_host *host, u32 offset)
+{
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+ struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
+
+ writel_relaxed(val, msm_host->core_mem + offset);
+}
+
+static void sdhci_msm_v5_variant_writel_relaxed(u32 val,
+ struct sdhci_host *host, u32 offset)
+{
+ writel_relaxed(val, host->ioaddr + offset);
+}
+
static unsigned int msm_get_clock_rate_for_bus_mode(struct sdhci_host *host,
unsigned int clock)
{
@@ -205,10 +349,12 @@ static inline int msm_dll_poll_ck_out_en(struct sdhci_host *host, u8 poll)
u32 wait_cnt = 50;
u8 ck_out_en;
struct mmc_host *mmc = host->mmc;
+ const struct sdhci_msm_offset *msm_offset =
+ sdhci_priv_msm_offset(host);
/* Poll for CK_OUT_EN bit. max. poll time = 50us */
- ck_out_en = !!(readl_relaxed(host->ioaddr + CORE_DLL_CONFIG) &
- CORE_CK_OUT_EN);
+ ck_out_en = !!(readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config) & CORE_CK_OUT_EN);
while (ck_out_en != poll) {
if (--wait_cnt == 0) {
@@ -218,8 +364,8 @@ static inline int msm_dll_poll_ck_out_en(struct sdhci_host *host, u8 poll)
}
udelay(1);
- ck_out_en = !!(readl_relaxed(host->ioaddr + CORE_DLL_CONFIG) &
- CORE_CK_OUT_EN);
+ ck_out_en = !!(readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config) & CORE_CK_OUT_EN);
}
return 0;
@@ -235,16 +381,18 @@ static int msm_config_cm_dll_phase(struct sdhci_host *host, u8 phase)
unsigned long flags;
u32 config;
struct mmc_host *mmc = host->mmc;
+ const struct sdhci_msm_offset *msm_offset =
+ sdhci_priv_msm_offset(host);
if (phase > 0xf)
return -EINVAL;
spin_lock_irqsave(&host->lock, flags);
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_dll_config);
config &= ~(CORE_CDR_EN | CORE_CK_OUT_EN);
config |= (CORE_CDR_EXT_EN | CORE_DLL_EN);
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_dll_config);
/* Wait until CK_OUT_EN bit of DLL_CONFIG register becomes '0' */
rc = msm_dll_poll_ck_out_en(host, 0);
@@ -255,24 +403,24 @@ static int msm_config_cm_dll_phase(struct sdhci_host *host, u8 phase)
* Write the selected DLL clock output phase (0 ... 15)
* to CDR_SELEXT bit field of DLL_CONFIG register.
*/
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_dll_config);
config &= ~CDR_SELEXT_MASK;
config |= grey_coded_phase_table[phase] << CDR_SELEXT_SHIFT;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_dll_config);
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_dll_config);
config |= CORE_CK_OUT_EN;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_dll_config);
/* Wait until CK_OUT_EN bit of DLL_CONFIG register becomes '1' */
rc = msm_dll_poll_ck_out_en(host, 1);
if (rc)
goto err_out;
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_dll_config);
config |= CORE_CDR_EN;
config &= ~CORE_CDR_EXT_EN;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_dll_config);
goto out;
err_out:
@@ -398,6 +546,8 @@ static int msm_find_most_appropriate_phase(struct sdhci_host *host,
static inline void msm_cm_dll_set_freq(struct sdhci_host *host)
{
u32 mclk_freq = 0, config;
+ const struct sdhci_msm_offset *msm_offset =
+ sdhci_priv_msm_offset(host);
/* Program the MCLK value to MCLK_FREQ bit field */
if (host->clock <= 112000000)
@@ -417,10 +567,10 @@ static inline void msm_cm_dll_set_freq(struct sdhci_host *host)
else if (host->clock <= 200000000)
mclk_freq = 7;
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_dll_config);
config &= ~CMUX_SHIFT_PHASE_MASK;
config |= mclk_freq << CMUX_SHIFT_PHASE_SHIFT;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_dll_config);
}
/* Initialize the DLL (Programmable Delay Line) */
@@ -432,6 +582,8 @@ static int msm_init_cm_dll(struct sdhci_host *host)
int wait_cnt = 50;
unsigned long flags;
u32 config;
+ const struct sdhci_msm_offset *msm_offset =
+ msm_host->offset;
spin_lock_irqsave(&host->lock, flags);
@@ -440,34 +592,43 @@ static int msm_init_cm_dll(struct sdhci_host *host)
* tuning is in progress. Keeping PWRSAVE ON may
* turn off the clock.
*/
- config = readl_relaxed(host->ioaddr + CORE_VENDOR_SPEC);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_vendor_spec);
config &= ~CORE_CLK_PWRSAVE;
- writel_relaxed(config, host->ioaddr + CORE_VENDOR_SPEC);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_vendor_spec);
if (msm_host->use_14lpp_dll_reset) {
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config);
config &= ~CORE_CK_OUT_EN;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_dll_config);
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG_2);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config_2);
config |= CORE_DLL_CLOCK_DISABLE;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG_2);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_dll_config_2);
}
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config);
config |= CORE_DLL_RST;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_dll_config);
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config);
config |= CORE_DLL_PDN;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_dll_config);
msm_cm_dll_set_freq(host);
if (msm_host->use_14lpp_dll_reset &&
!IS_ERR_OR_NULL(msm_host->xo_clk)) {
u32 mclk_freq = 0;
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG_2);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config_2);
config &= CORE_FLL_CYCLE_CNT;
if (config)
mclk_freq = DIV_ROUND_CLOSEST_ULL((host->clock * 8),
@@ -476,40 +637,52 @@ static int msm_init_cm_dll(struct sdhci_host *host)
mclk_freq = DIV_ROUND_CLOSEST_ULL((host->clock * 4),
clk_get_rate(msm_host->xo_clk));
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG_2);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config_2);
config &= ~(0xFF << 10);
config |= mclk_freq << 10;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG_2);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_dll_config_2);
/* wait for 5us before enabling DLL clock */
udelay(5);
}
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config);
config &= ~CORE_DLL_RST;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_dll_config);
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config);
config &= ~CORE_DLL_PDN;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_dll_config);
if (msm_host->use_14lpp_dll_reset) {
msm_cm_dll_set_freq(host);
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG_2);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config_2);
config &= ~CORE_DLL_CLOCK_DISABLE;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG_2);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_dll_config_2);
}
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config);
config |= CORE_DLL_EN;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_dll_config);
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config);
config |= CORE_CK_OUT_EN;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_dll_config);
/* Wait until DLL_LOCK bit of DLL_STATUS register becomes '1' */
- while (!(readl_relaxed(host->ioaddr + CORE_DLL_STATUS) &
+ while (!(readl_relaxed(host->ioaddr + msm_offset->core_dll_status) &
CORE_DLL_LOCK)) {
/* max. wait for 50us sec for LOCK bit to be set */
if (--wait_cnt == 0) {
@@ -530,19 +703,21 @@ static void msm_hc_select_default(struct sdhci_host *host)
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
u32 config;
+ const struct sdhci_msm_offset *msm_offset =
+ msm_host->offset;
if (!msm_host->use_cdclp533) {
config = readl_relaxed(host->ioaddr +
- CORE_VENDOR_SPEC3);
+ msm_offset->core_vendor_spec3);
config &= ~CORE_PWRSAVE_DLL;
writel_relaxed(config, host->ioaddr +
- CORE_VENDOR_SPEC3);
+ msm_offset->core_vendor_spec3);
}
- config = readl_relaxed(host->ioaddr + CORE_VENDOR_SPEC);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_vendor_spec);
config &= ~CORE_HC_MCLK_SEL_MASK;
config |= CORE_HC_MCLK_SEL_DFLT;
- writel_relaxed(config, host->ioaddr + CORE_VENDOR_SPEC);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_vendor_spec);
/*
* Disable HC_SELECT_IN to be able to use the UHS mode select
@@ -551,10 +726,10 @@ static void msm_hc_select_default(struct sdhci_host *host)
* Write 0 to HC_SELECT_IN and HC_SELECT_IN_EN field
* in VENDOR_SPEC_FUNC
*/
- config = readl_relaxed(host->ioaddr + CORE_VENDOR_SPEC);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_vendor_spec);
config &= ~CORE_HC_SELECT_IN_EN;
config &= ~CORE_HC_SELECT_IN_MASK;
- writel_relaxed(config, host->ioaddr + CORE_VENDOR_SPEC);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_vendor_spec);
/*
* Make sure above writes impacting free running MCLK are completed
@@ -570,32 +745,36 @@ static void msm_hc_select_hs400(struct sdhci_host *host)
struct mmc_ios ios = host->mmc->ios;
u32 config, dll_lock;
int rc;
+ const struct sdhci_msm_offset *msm_offset =
+ msm_host->offset;
/* Select the divided clock (free running MCLK/2) */
- config = readl_relaxed(host->ioaddr + CORE_VENDOR_SPEC);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_vendor_spec);
config &= ~CORE_HC_MCLK_SEL_MASK;
config |= CORE_HC_MCLK_SEL_HS400;
- writel_relaxed(config, host->ioaddr + CORE_VENDOR_SPEC);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_vendor_spec);
/*
* Select HS400 mode using the HC_SELECT_IN from VENDOR SPEC
* register
*/
if ((msm_host->tuning_done || ios.enhanced_strobe) &&
!msm_host->calibration_done) {
- config = readl_relaxed(host->ioaddr + CORE_VENDOR_SPEC);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_vendor_spec);
config |= CORE_HC_SELECT_IN_HS400;
config |= CORE_HC_SELECT_IN_EN;
- writel_relaxed(config, host->ioaddr + CORE_VENDOR_SPEC);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_vendor_spec);
}
if (!msm_host->clk_rate && !msm_host->use_cdclp533) {
/*
* Poll on DLL_LOCK or DDR_DLL_LOCK bits in
- * CORE_DLL_STATUS to be set. This should get set
+ * core_dll_status to be set. This should get set
* within 15 us at 200 MHz.
*/
rc = readl_relaxed_poll_timeout(host->ioaddr +
- CORE_DLL_STATUS,
+ msm_offset->core_dll_status,
dll_lock,
(dll_lock &
(CORE_DLL_LOCK |
@@ -647,6 +826,8 @@ static int sdhci_msm_cdclp533_calibration(struct sdhci_host *host)
struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
u32 config, calib_done;
int ret;
+ const struct sdhci_msm_offset *msm_offset =
+ msm_host->offset;
pr_debug("%s: %s: Enter\n", mmc_hostname(host->mmc), __func__);
@@ -663,13 +844,13 @@ static int sdhci_msm_cdclp533_calibration(struct sdhci_host *host)
if (ret)
goto out;
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_dll_config);
config |= CORE_CMD_DAT_TRACK_SEL;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_dll_config);
- config = readl_relaxed(host->ioaddr + CORE_DDR_200_CFG);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_ddr_200_cfg);
config &= ~CORE_CDC_T4_DLY_SEL;
- writel_relaxed(config, host->ioaddr + CORE_DDR_200_CFG);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_ddr_200_cfg);
config = readl_relaxed(host->ioaddr + CORE_CSR_CDC_GEN_CFG);
config &= ~CORE_CDC_SWITCH_BYPASS_OFF;
@@ -679,9 +860,9 @@ static int sdhci_msm_cdclp533_calibration(struct sdhci_host *host)
config |= CORE_CDC_SWITCH_RC_EN;
writel_relaxed(config, host->ioaddr + CORE_CSR_CDC_GEN_CFG);
- config = readl_relaxed(host->ioaddr + CORE_DDR_200_CFG);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_ddr_200_cfg);
config &= ~CORE_START_CDC_TRAFFIC;
- writel_relaxed(config, host->ioaddr + CORE_DDR_200_CFG);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_ddr_200_cfg);
/* Perform CDC Register Initialization Sequence */
@@ -733,9 +914,9 @@ static int sdhci_msm_cdclp533_calibration(struct sdhci_host *host)
goto out;
}
- config = readl_relaxed(host->ioaddr + CORE_DDR_200_CFG);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_ddr_200_cfg);
config |= CORE_START_CDC_TRAFFIC;
- writel_relaxed(config, host->ioaddr + CORE_DDR_200_CFG);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_ddr_200_cfg);
out:
pr_debug("%s: %s: Exit, ret %d\n", mmc_hostname(host->mmc),
__func__, ret);
@@ -747,32 +928,38 @@ static int sdhci_msm_cm_dll_sdc4_calibration(struct sdhci_host *host)
struct mmc_host *mmc = host->mmc;
u32 dll_status, config;
int ret;
+ const struct sdhci_msm_offset *msm_offset =
+ sdhci_priv_msm_offset(host);
pr_debug("%s: %s: Enter\n", mmc_hostname(host->mmc), __func__);
/*
- * Currently the CORE_DDR_CONFIG register defaults to desired
+ * Currently the core_ddr_config register defaults to desired
* configuration on reset. Currently reprogramming the power on
* reset (POR) value in case it might have been modified by
* bootloaders. In the future, if this changes, then the desired
* values will need to be programmed appropriately.
*/
- writel_relaxed(DDR_CONFIG_POR_VAL, host->ioaddr + CORE_DDR_CONFIG);
+ writel_relaxed(DDR_CONFIG_POR_VAL, host->ioaddr +
+ msm_offset->core_ddr_config);
if (mmc->ios.enhanced_strobe) {
- config = readl_relaxed(host->ioaddr + CORE_DDR_200_CFG);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_ddr_200_cfg);
config |= CORE_CMDIN_RCLK_EN;
- writel_relaxed(config, host->ioaddr + CORE_DDR_200_CFG);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_ddr_200_cfg);
}
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG_2);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_dll_config_2);
config |= CORE_DDR_CAL_EN;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG_2);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_dll_config_2);
- ret = readl_relaxed_poll_timeout(host->ioaddr + CORE_DLL_STATUS,
- dll_status,
- (dll_status & CORE_DDR_DLL_LOCK),
- 10, 1000);
+ ret = readl_relaxed_poll_timeout(host->ioaddr +
+ msm_offset->core_dll_status,
+ dll_status,
+ (dll_status & CORE_DDR_DLL_LOCK),
+ 10, 1000);
if (ret == -ETIMEDOUT) {
pr_err("%s: %s: CM_DLL_SDC4 calibration was not completed\n",
@@ -780,9 +967,9 @@ static int sdhci_msm_cm_dll_sdc4_calibration(struct sdhci_host *host)
goto out;
}
- config = readl_relaxed(host->ioaddr + CORE_VENDOR_SPEC3);
+ config = readl_relaxed(host->ioaddr + msm_offset->core_vendor_spec3);
config |= CORE_PWRSAVE_DLL;
- writel_relaxed(config, host->ioaddr + CORE_VENDOR_SPEC3);
+ writel_relaxed(config, host->ioaddr + msm_offset->core_vendor_spec3);
/*
* Drain writebuffer to ensure above DLL calibration
@@ -802,6 +989,8 @@ static int sdhci_msm_hs400_dll_calibration(struct sdhci_host *host)
struct mmc_host *mmc = host->mmc;
int ret;
u32 config;
+ const struct sdhci_msm_offset *msm_offset =
+ msm_host->offset;
pr_debug("%s: %s: Enter\n", mmc_hostname(host->mmc), __func__);
@@ -819,9 +1008,11 @@ static int sdhci_msm_hs400_dll_calibration(struct sdhci_host *host)
msm_host->saved_tuning_phase);
if (ret)
goto out;
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config);
config |= CORE_CMD_DAT_TRACK_SEL;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_dll_config);
}
if (msm_host->use_cdclp533)
@@ -951,6 +1142,8 @@ static void sdhci_msm_set_uhs_signaling(struct sdhci_host *host,
struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
u16 ctrl_2;
u32 config;
+ const struct sdhci_msm_offset *msm_offset =
+ msm_host->offset;
ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);
/* Select Bus Speed Mode for host */
@@ -991,13 +1184,17 @@ static void sdhci_msm_set_uhs_signaling(struct sdhci_host *host,
* DLL is not required for clock <= 100MHz
* Thus, make sure DLL it is disabled when not required
*/
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config);
config |= CORE_DLL_RST;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_dll_config);
- config = readl_relaxed(host->ioaddr + CORE_DLL_CONFIG);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_dll_config);
config |= CORE_DLL_PDN;
- writel_relaxed(config, host->ioaddr + CORE_DLL_CONFIG);
+ writel_relaxed(config, host->ioaddr +
+ msm_offset->core_dll_config);
/*
* The DLL needs to be restored and CDCLP533 recalibrated
@@ -1039,7 +1236,9 @@ static void sdhci_msm_check_power_status(struct sdhci_host *host, u32 req_type)
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
bool done = false;
- u32 val;
+ u32 val = SWITCHABLE_SIGNALING_VOLTAGE;
+ const struct sdhci_msm_offset *msm_offset =
+ msm_host->offset;
pr_debug("%s: %s: request %d curr_pwr_state %x curr_io_level %x\n",
mmc_hostname(host->mmc), __func__, req_type,
@@ -1048,8 +1247,12 @@ static void sdhci_msm_check_power_status(struct sdhci_host *host, u32 req_type)
/*
* The power interrupt will not be generated for signal voltage
* switches if SWITCHABLE_SIGNALING_VOLTAGE in MCI_GENERICS is not set.
+ * Since sdhci-msm-v5, this bit has been removed and SW must consider
+ * it as always set.
*/
- val = readl(msm_host->core_mem + CORE_MCI_GENERICS);
+ if (!msm_host->mci_removed)
+ val = msm_host_readl(msm_host, host,
+ msm_offset->core_generics);
if ((req_type & REQ_IO_HIGH || req_type & REQ_IO_LOW) &&
!(val & SWITCHABLE_SIGNALING_VOLTAGE)) {
return;
@@ -1097,12 +1300,14 @@ static void sdhci_msm_dump_pwr_ctrl_regs(struct sdhci_host *host)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
+ const struct sdhci_msm_offset *msm_offset =
+ msm_host->offset;
pr_err("%s: PWRCTL_STATUS: 0x%08x | PWRCTL_MASK: 0x%08x | PWRCTL_CTL: 0x%08x\n",
- mmc_hostname(host->mmc),
- readl_relaxed(msm_host->core_mem + CORE_PWRCTL_STATUS),
- readl_relaxed(msm_host->core_mem + CORE_PWRCTL_MASK),
- readl_relaxed(msm_host->core_mem + CORE_PWRCTL_CTL));
+ mmc_hostname(host->mmc),
+ msm_host_readl(msm_host, host, msm_offset->core_pwrctl_status),
+ msm_host_readl(msm_host, host, msm_offset->core_pwrctl_mask),
+ msm_host_readl(msm_host, host, msm_offset->core_pwrctl_ctl));
}
static void sdhci_msm_handle_pwr_irq(struct sdhci_host *host, int irq)
@@ -1113,11 +1318,14 @@ static void sdhci_msm_handle_pwr_irq(struct sdhci_host *host, int irq)
int retry = 10;
u32 pwr_state = 0, io_level = 0;
u32 config;
+ const struct sdhci_msm_offset *msm_offset = msm_host->offset;
- irq_status = readl_relaxed(msm_host->core_mem + CORE_PWRCTL_STATUS);
+ irq_status = msm_host_readl(msm_host, host,
+ msm_offset->core_pwrctl_status);
irq_status &= INT_MASK;
- writel_relaxed(irq_status, msm_host->core_mem + CORE_PWRCTL_CLEAR);
+ msm_host_writel(msm_host, irq_status, host,
+ msm_offset->core_pwrctl_clear);
/*
* There is a rare HW scenario where the first clear pulse could be
@@ -1126,8 +1334,8 @@ static void sdhci_msm_handle_pwr_irq(struct sdhci_host *host, int irq)
* sure status register is cleared. Otherwise, this will result in
* a spurious power IRQ resulting in system instability.
*/
- while (irq_status & readl_relaxed(msm_host->core_mem +
- CORE_PWRCTL_STATUS)) {
+ while (irq_status & msm_host_readl(msm_host, host,
+ msm_offset->core_pwrctl_status)) {
if (retry == 0) {
pr_err("%s: Timedout clearing (0x%x) pwrctl status register\n",
mmc_hostname(host->mmc), irq_status);
@@ -1135,8 +1343,8 @@ static void sdhci_msm_handle_pwr_irq(struct sdhci_host *host, int irq)
WARN_ON(1);
break;
}
- writel_relaxed(irq_status,
- msm_host->core_mem + CORE_PWRCTL_CLEAR);
+ msm_host_writel(msm_host, irq_status, host,
+ msm_offset->core_pwrctl_clear);
retry--;
udelay(10);
}
@@ -1167,7 +1375,8 @@ static void sdhci_msm_handle_pwr_irq(struct sdhci_host *host, int irq)
* report back if it succeded or not to this register. The voltage
* switches are handled by the sdhci core, so just report success.
*/
- writel_relaxed(irq_ack, msm_host->core_mem + CORE_PWRCTL_CTL);
+ msm_host_writel(msm_host, irq_ack, host,
+ msm_offset->core_pwrctl_ctl);
/*
* If we don't have info regarding the voltage levels supported by
@@ -1186,7 +1395,8 @@ static void sdhci_msm_handle_pwr_irq(struct sdhci_host *host, int irq)
* controllers with only 1.8V, we will set the IO PAD bit
* without waiting for a REQ_IO_LOW.
*/
- config = readl_relaxed(host->ioaddr + CORE_VENDOR_SPEC);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_vendor_spec);
new_config = config;
if ((io_level & REQ_IO_HIGH) &&
@@ -1197,8 +1407,8 @@ static void sdhci_msm_handle_pwr_irq(struct sdhci_host *host, int irq)
new_config |= CORE_IO_PAD_PWR_SWITCH;
if (config ^ new_config)
- writel_relaxed(new_config,
- host->ioaddr + CORE_VENDOR_SPEC);
+ writel_relaxed(new_config, host->ioaddr +
+ msm_offset->core_vendor_spec);
}
if (pwr_state)
@@ -1359,6 +1569,7 @@ static void sdhci_msm_set_regulator_caps(struct sdhci_msm_host *msm_host)
struct regulator *supply = mmc->supply.vqmmc;
u32 caps = 0, config;
struct sdhci_host *host = mmc_priv(mmc);
+ const struct sdhci_msm_offset *msm_offset = msm_host->offset;
if (!IS_ERR(mmc->supply.vqmmc)) {
if (regulator_is_supported_voltage(supply, 1700000, 1950000))
@@ -1378,7 +1589,8 @@ static void sdhci_msm_set_regulator_caps(struct sdhci_msm_host *msm_host)
*/
u32 io_level = msm_host->curr_io_level;
- config = readl_relaxed(host->ioaddr + CORE_VENDOR_SPEC);
+ config = readl_relaxed(host->ioaddr +
+ msm_offset->core_vendor_spec);
config |= CORE_IO_PAD_PWR_SWITCH_EN;
if ((io_level & REQ_IO_HIGH) && (caps & CORE_3_0V_SUPPORT))
@@ -1386,14 +1598,38 @@ static void sdhci_msm_set_regulator_caps(struct sdhci_msm_host *msm_host)
else if ((io_level & REQ_IO_LOW) || (caps & CORE_1_8V_SUPPORT))
config |= CORE_IO_PAD_PWR_SWITCH;
- writel_relaxed(config, host->ioaddr + CORE_VENDOR_SPEC);
+ writel_relaxed(config,
+ host->ioaddr + msm_offset->core_vendor_spec);
}
msm_host->caps_0 |= caps;
pr_debug("%s: supported caps: 0x%08x\n", mmc_hostname(mmc), caps);
}
+static const struct sdhci_msm_variant_ops mci_var_ops = {
+ .msm_readl_relaxed = sdhci_msm_mci_variant_readl_relaxed,
+ .msm_writel_relaxed = sdhci_msm_mci_variant_writel_relaxed,
+};
+
+static const struct sdhci_msm_variant_ops v5_var_ops = {
+ .msm_readl_relaxed = sdhci_msm_v5_variant_readl_relaxed,
+ .msm_writel_relaxed = sdhci_msm_v5_variant_writel_relaxed,
+};
+
+static const struct sdhci_msm_variant_info sdhci_msm_mci_var = {
+ .mci_removed = false,
+ .var_ops = &mci_var_ops,
+ .offset = &sdhci_msm_mci_offset,
+};
+
+static const struct sdhci_msm_variant_info sdhci_msm_v5_var = {
+ .mci_removed = true,
+ .var_ops = &v5_var_ops,
+ .offset = &sdhci_msm_v5_offset,
+};
+
static const struct of_device_id sdhci_msm_dt_match[] = {
- { .compatible = "qcom,sdhci-msm-v4" },
+ {.compatible = "qcom,sdhci-msm-v4", .data = &sdhci_msm_mci_var},
+ {.compatible = "qcom,sdhci-msm-v5", .data = &sdhci_msm_v5_var},
{},
};
@@ -1429,6 +1665,8 @@ static int sdhci_msm_probe(struct platform_device *pdev)
u16 host_version, core_minor;
u32 core_version, config;
u8 core_major;
+ const struct sdhci_msm_offset *msm_offset;
+ const struct sdhci_msm_variant_info *var_info;
host = sdhci_pltfm_init(pdev, &sdhci_msm_pdata, sizeof(*msm_host));
if (IS_ERR(host))
@@ -1444,6 +1682,18 @@ static int sdhci_msm_probe(struct platform_device *pdev)
if (ret)
goto pltfm_free;
+ /*
+ * Based on the compatible string, load the required msm host info from
+ * the data associated with the version info.
+ */
+ var_info = of_device_get_match_data(&pdev->dev);
+
+ msm_host->mci_removed = var_info->mci_removed;
+ msm_host->var_ops = var_info->var_ops;
+ msm_host->offset = var_info->offset;
+
+ msm_offset = msm_host->offset;
+
sdhci_get_of_property(pdev);
msm_host->saved_tuning_phase = INVALID_TUNING_PHASE;
@@ -1508,32 +1758,39 @@ static int sdhci_msm_probe(struct platform_device *pdev)
dev_warn(&pdev->dev, "TCXO clk not present (%d)\n", ret);
}
- core_memres = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- msm_host->core_mem = devm_ioremap_resource(&pdev->dev, core_memres);
+ if (!msm_host->mci_removed) {
+ core_memres = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ msm_host->core_mem = devm_ioremap_resource(&pdev->dev,
+ core_memres);
- if (IS_ERR(msm_host->core_mem)) {
- dev_err(&pdev->dev, "Failed to remap registers\n");
- ret = PTR_ERR(msm_host->core_mem);
- goto clk_disable;
+ if (IS_ERR(msm_host->core_mem)) {
+ ret = PTR_ERR(msm_host->core_mem);
+ goto clk_disable;
+ }
}
/* Reset the vendor spec register to power on reset state */
writel_relaxed(CORE_VENDOR_SPEC_POR_VAL,
- host->ioaddr + CORE_VENDOR_SPEC);
-
- /* Set HC_MODE_EN bit in HC_MODE register */
- writel_relaxed(HC_MODE_EN, (msm_host->core_mem + CORE_HC_MODE));
-
- config = readl_relaxed(msm_host->core_mem + CORE_HC_MODE);
- config |= FF_CLK_SW_RST_DIS;
- writel_relaxed(config, msm_host->core_mem + CORE_HC_MODE);
+ host->ioaddr + msm_offset->core_vendor_spec);
+
+ if (!msm_host->mci_removed) {
+ /* Set HC_MODE_EN bit in HC_MODE register */
+ msm_host_writel(msm_host, HC_MODE_EN, host,
+ msm_offset->core_hc_mode);
+ config = msm_host_readl(msm_host, host,
+ msm_offset->core_hc_mode);
+ config |= FF_CLK_SW_RST_DIS;
+ msm_host_writel(msm_host, config, host,
+ msm_offset->core_hc_mode);
+ }
host_version = readw_relaxed((host->ioaddr + SDHCI_HOST_VERSION));
dev_dbg(&pdev->dev, "Host Version: 0x%x Vendor Version 0x%x\n",
host_version, ((host_version & SDHCI_VENDOR_VER_MASK) >>
SDHCI_VENDOR_VER_SHIFT));
- core_version = readl_relaxed(msm_host->core_mem + CORE_MCI_VERSION);
+ core_version = msm_host_readl(msm_host, host,
+ msm_offset->core_mci_version);
core_major = (core_version & CORE_VERSION_MAJOR_MASK) >>
CORE_VERSION_MAJOR_SHIFT;
core_minor = core_version & CORE_VERSION_MINOR_MASK;
@@ -1558,7 +1815,7 @@ static int sdhci_msm_probe(struct platform_device *pdev)
config = readl_relaxed(host->ioaddr + SDHCI_CAPABILITIES);
config |= SDHCI_CAN_VDD_300 | SDHCI_CAN_DO_8BIT;
writel_relaxed(config, host->ioaddr +
- CORE_VENDOR_SPEC_CAPABILITIES0);
+ msm_offset->core_vendor_spec_capabilities0);
}
/*
@@ -1587,7 +1844,8 @@ static int sdhci_msm_probe(struct platform_device *pdev)
sdhci_msm_init_pwr_irq_wait(msm_host);
/* Enable pwr irq interrupts */
- writel_relaxed(INT_MASK, msm_host->core_mem + CORE_PWRCTL_MASK);
+ msm_host_writel(msm_host, INT_MASK, host,
+ msm_offset->core_pwrctl_mask);
ret = devm_request_threaded_irq(&pdev->dev, msm_host->pwr_irq, NULL,
sdhci_msm_pwr_irq, IRQF_ONESHOT,