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-rw-r--r--arch/arm/mach-omap2/devices.c168
-rw-r--r--arch/arm/mach-omap2/hsmmc.c346
-rw-r--r--arch/arm/plat-omap/include/plat/mmc.h20
3 files changed, 198 insertions, 336 deletions
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 2f4a598ba67..31632ac1ca7 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -544,112 +544,6 @@ static inline void omap_init_aes(void) { }
/*-------------------------------------------------------------------------*/
-#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
-
-#define MMCHS_SYSCONFIG 0x0010
-#define MMCHS_SYSCONFIG_SWRESET (1 << 1)
-#define MMCHS_SYSSTATUS 0x0014
-#define MMCHS_SYSSTATUS_RESETDONE (1 << 0)
-
-static struct platform_device dummy_pdev = {
- .dev = {
- .bus = &platform_bus_type,
- },
-};
-
-/**
- * omap_hsmmc_reset() - Full reset of each HS-MMC controller
- *
- * Ensure that each MMC controller is fully reset. Controllers
- * left in an unknown state (by bootloader) may prevent retention
- * or OFF-mode. This is especially important in cases where the
- * MMC driver is not enabled, _or_ built as a module.
- *
- * In order for reset to work, interface, functional and debounce
- * clocks must be enabled. The debounce clock comes from func_32k_clk
- * and is not under SW control, so we only enable i- and f-clocks.
- **/
-static void __init omap_hsmmc_reset(void)
-{
- u32 i, nr_controllers;
- struct clk *iclk, *fclk;
-
- if (cpu_is_omap242x())
- return;
-
- nr_controllers = cpu_is_omap44xx() ? OMAP44XX_NR_MMC :
- (cpu_is_omap34xx() ? OMAP34XX_NR_MMC : OMAP24XX_NR_MMC);
-
- for (i = 0; i < nr_controllers; i++) {
- u32 v, base = 0;
- struct device *dev = &dummy_pdev.dev;
-
- switch (i) {
- case 0:
- base = OMAP2_MMC1_BASE;
- break;
- case 1:
- base = OMAP2_MMC2_BASE;
- break;
- case 2:
- base = OMAP3_MMC3_BASE;
- break;
- case 3:
- if (!cpu_is_omap44xx())
- return;
- base = OMAP4_MMC4_BASE;
- break;
- case 4:
- if (!cpu_is_omap44xx())
- return;
- base = OMAP4_MMC5_BASE;
- break;
- }
-
- if (cpu_is_omap44xx())
- base += OMAP4_MMC_REG_OFFSET;
-
- dummy_pdev.id = i;
- dev_set_name(&dummy_pdev.dev, "mmci-omap-hs.%d", i);
- iclk = clk_get(dev, "ick");
- if (IS_ERR(iclk))
- goto err1;
- if (clk_enable(iclk))
- goto err2;
-
- fclk = clk_get(dev, "fck");
- if (IS_ERR(fclk))
- goto err3;
- if (clk_enable(fclk))
- goto err4;
-
- omap_writel(MMCHS_SYSCONFIG_SWRESET, base + MMCHS_SYSCONFIG);
- v = omap_readl(base + MMCHS_SYSSTATUS);
- while (!(omap_readl(base + MMCHS_SYSSTATUS) &
- MMCHS_SYSSTATUS_RESETDONE))
- cpu_relax();
-
- clk_disable(fclk);
- clk_put(fclk);
- clk_disable(iclk);
- clk_put(iclk);
- }
- return;
-
-err4:
- clk_put(fclk);
-err3:
- clk_disable(iclk);
-err2:
- clk_put(iclk);
-err1:
- printk(KERN_WARNING "%s: Unable to enable clocks for MMC%d, "
- "cannot reset.\n", __func__, i);
-}
-#else
-static inline void omap_hsmmc_reset(void) {}
-#endif
-
#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
static inline void omap242x_mmc_mux(struct omap_mmc_platform_data
@@ -706,67 +600,6 @@ void __init omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data)
#endif
-#if defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
-
-void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
- int nr_controllers)
-{
- int i;
- char *name;
-
- for (i = 0; i < nr_controllers; i++) {
- unsigned long base, size;
- unsigned int irq = 0;
-
- if (!mmc_data[i])
- continue;
-
- switch (i) {
- case 0:
- base = OMAP2_MMC1_BASE;
- irq = INT_24XX_MMC_IRQ;
- break;
- case 1:
- base = OMAP2_MMC2_BASE;
- irq = INT_24XX_MMC2_IRQ;
- break;
- case 2:
- if (!cpu_is_omap44xx() && !cpu_is_omap34xx())
- return;
- base = OMAP3_MMC3_BASE;
- irq = INT_34XX_MMC3_IRQ;
- break;
- case 3:
- if (!cpu_is_omap44xx())
- return;
- base = OMAP4_MMC4_BASE;
- irq = OMAP44XX_IRQ_MMC4;
- break;
- case 4:
- if (!cpu_is_omap44xx())
- return;
- base = OMAP4_MMC5_BASE;
- irq = OMAP44XX_IRQ_MMC5;
- break;
- default:
- continue;
- }
-
- if (cpu_is_omap44xx()) {
- if (i < 3)
- irq += OMAP44XX_IRQ_GIC_START;
- size = OMAP4_HSMMC_SIZE;
- name = "mmci-omap-hs";
- } else {
- size = OMAP3_HSMMC_SIZE;
- name = "mmci-omap-hs";
- }
- omap_mmc_add(name, i, base, size, irq, mmc_data[i]);
- };
-}
-
-#endif
-
/*-------------------------------------------------------------------------*/
#if defined(CONFIG_HDQ_MASTER_OMAP) || defined(CONFIG_HDQ_MASTER_OMAP_MODULE)
@@ -836,7 +669,6 @@ static int __init omap2_init_devices(void)
* please keep these calls, and their implementations above,
* in alphabetical order so they're easier to sort through.
*/
- omap_hsmmc_reset();
omap_init_audio();
omap_init_camera();
omap_init_mbox();
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index 1348ac3d60e..d492bc4d342 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -17,6 +17,7 @@
#include <plat/mmc.h>
#include <plat/omap-pm.h>
#include <plat/mux.h>
+#include <plat/omap_device.h>
#include "mux.h"
#include "hsmmc.h"
@@ -30,10 +31,6 @@ static u16 control_mmc1;
#define HSMMC_NAME_LEN 9
-static struct hsmmc_controller {
- char name[HSMMC_NAME_LEN + 1];
-} hsmmc[OMAP34XX_NR_MMC];
-
#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM)
static int hsmmc_get_context_loss(struct device *dev)
@@ -287,13 +284,203 @@ static inline void omap_hsmmc_mux(struct omap_mmc_platform_data *mmc_controller,
}
}
-static struct omap_mmc_platform_data *hsmmc_data[OMAP34XX_NR_MMC] __initdata;
+static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
+ struct omap_mmc_platform_data *mmc)
+{
+ char *hc_name;
+
+ hc_name = kzalloc(sizeof(char) * (HSMMC_NAME_LEN + 1), GFP_KERNEL);
+ if (!hc_name) {
+ pr_err("Cannot allocate memory for controller slot name\n");
+ kfree(hc_name);
+ return -ENOMEM;
+ }
+
+ if (c->name)
+ strncpy(hc_name, c->name, HSMMC_NAME_LEN);
+ else
+ snprintf(hc_name, (HSMMC_NAME_LEN + 1), "mmc%islot%i",
+ c->mmc, 1);
+ mmc->slots[0].name = hc_name;
+ mmc->nr_slots = 1;
+ mmc->slots[0].caps = c->caps;
+ mmc->slots[0].internal_clock = !c->ext_clock;
+ mmc->dma_mask = 0xffffffff;
+ if (cpu_is_omap44xx())
+ mmc->reg_offset = OMAP4_MMC_REG_OFFSET;
+ else
+ mmc->reg_offset = 0;
+
+ mmc->get_context_loss_count = hsmmc_get_context_loss;
+
+ mmc->slots[0].switch_pin = c->gpio_cd;
+ mmc->slots[0].gpio_wp = c->gpio_wp;
+
+ mmc->slots[0].remux = c->remux;
+ mmc->slots[0].init_card = c->init_card;
+
+ if (c->cover_only)
+ mmc->slots[0].cover = 1;
+
+ if (c->nonremovable)
+ mmc->slots[0].nonremovable = 1;
+
+ if (c->power_saving)
+ mmc->slots[0].power_saving = 1;
+
+ if (c->no_off)
+ mmc->slots[0].no_off = 1;
+
+ if (c->vcc_aux_disable_is_sleep)
+ mmc->slots[0].vcc_aux_disable_is_sleep = 1;
+
+ /*
+ * NOTE: MMC slots should have a Vcc regulator set up.
+ * This may be from a TWL4030-family chip, another
+ * controllable regulator, or a fixed supply.
+ *
+ * temporary HACK: ocr_mask instead of fixed supply
+ */
+ mmc->slots[0].ocr_mask = c->ocr_mask;
+
+ if (cpu_is_omap3517() || cpu_is_omap3505())
+ mmc->slots[0].set_power = nop_mmc_set_power;
+ else
+ mmc->slots[0].features |= HSMMC_HAS_PBIAS;
+
+ if (cpu_is_omap44xx() && (omap_rev() > OMAP4430_REV_ES1_0))
+ mmc->slots[0].features |= HSMMC_HAS_UPDATED_RESET;
+
+ switch (c->mmc) {
+ case 1:
+ if (mmc->slots[0].features & HSMMC_HAS_PBIAS) {
+ /* on-chip level shifting via PBIAS0/PBIAS1 */
+ if (cpu_is_omap44xx()) {
+ mmc->slots[0].before_set_reg =
+ omap4_hsmmc1_before_set_reg;
+ mmc->slots[0].after_set_reg =
+ omap4_hsmmc1_after_set_reg;
+ } else {
+ mmc->slots[0].before_set_reg =
+ omap_hsmmc1_before_set_reg;
+ mmc->slots[0].after_set_reg =
+ omap_hsmmc1_after_set_reg;
+ }
+ }
+
+ /* OMAP3630 HSMMC1 supports only 4-bit */
+ if (cpu_is_omap3630() &&
+ (c->caps & MMC_CAP_8_BIT_DATA)) {
+ c->caps &= ~MMC_CAP_8_BIT_DATA;
+ c->caps |= MMC_CAP_4_BIT_DATA;
+ mmc->slots[0].caps = c->caps;
+ }
+ break;
+ case 2:
+ if (c->ext_clock)
+ c->transceiver = 1;
+ if (c->transceiver && (c->caps & MMC_CAP_8_BIT_DATA)) {
+ c->caps &= ~MMC_CAP_8_BIT_DATA;
+ c->caps |= MMC_CAP_4_BIT_DATA;
+ }
+ /* FALLTHROUGH */
+ case 3:
+ if (mmc->slots[0].features & HSMMC_HAS_PBIAS) {
+ /* off-chip level shifting, or none */
+ mmc->slots[0].before_set_reg = hsmmc23_before_set_reg;
+ mmc->slots[0].after_set_reg = NULL;
+ }
+ break;
+ case 4:
+ case 5:
+ mmc->slots[0].before_set_reg = NULL;
+ mmc->slots[0].after_set_reg = NULL;
+ break;
+ default:
+ pr_err("MMC%d configuration not supported!\n", c->mmc);
+ kfree(hc_name);
+ return -ENODEV;
+ }
+ return 0;
+}
+
+static struct omap_device_pm_latency omap_hsmmc_latency[] = {
+ [0] = {
+ .deactivate_func = omap_device_idle_hwmods,
+ .activate_func = omap_device_enable_hwmods,
+ .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
+ },
+ /*
+ * XXX There should also be an entry here to power off/on the
+ * MMC regulators/PBIAS cells, etc.
+ */
+};
+
+#define MAX_OMAP_MMC_HWMOD_NAME_LEN 16
+
+void __init omap_init_hsmmc(struct omap2_hsmmc_info *hsmmcinfo, int ctrl_nr)
+{
+ struct omap_hwmod *oh;
+ struct omap_device *od;
+ struct omap_device_pm_latency *ohl;
+ char oh_name[MAX_OMAP_MMC_HWMOD_NAME_LEN];
+ struct omap_mmc_platform_data *mmc_data;
+ struct omap_mmc_dev_attr *mmc_dev_attr;
+ char *name;
+ int l;
+ int ohl_cnt = 0;
+
+ mmc_data = kzalloc(sizeof(struct omap_mmc_platform_data), GFP_KERNEL);
+ if (!mmc_data) {
+ pr_err("Cannot allocate memory for mmc device!\n");
+ goto done;
+ }
+
+ if (omap_hsmmc_pdata_init(hsmmcinfo, mmc_data) < 0) {
+ pr_err("%s fails!\n", __func__);
+ goto done;
+ }
+ omap_hsmmc_mux(mmc_data, (ctrl_nr - 1));
+
+ name = "mmci-omap-hs";
+ ohl = omap_hsmmc_latency;
+ ohl_cnt = ARRAY_SIZE(omap_hsmmc_latency);
+
+ l = snprintf(oh_name, MAX_OMAP_MMC_HWMOD_NAME_LEN,
+ "mmc%d", ctrl_nr);
+ WARN(l >= MAX_OMAP_MMC_HWMOD_NAME_LEN,
+ "String buffer overflow in MMC%d device setup\n", ctrl_nr);
+ oh = omap_hwmod_lookup(oh_name);
+ if (!oh) {
+ pr_err("Could not look up %s\n", oh_name);
+ kfree(mmc_data->slots[0].name);
+ goto done;
+ }
+
+ if (oh->dev_attr != NULL) {
+ mmc_dev_attr = oh->dev_attr;
+ mmc_data->controller_flags = mmc_dev_attr->flags;
+ }
+
+ od = omap_device_build(name, ctrl_nr - 1, oh, mmc_data,
+ sizeof(struct omap_mmc_platform_data), ohl, ohl_cnt, false);
+ if (IS_ERR(od)) {
+ WARN(1, "Cant build omap_device for %s:%s.\n", name, oh->name);
+ kfree(mmc_data->slots[0].name);
+ goto done;
+ }
+ /*
+ * return device handle to board setup code
+ * required to populate for regulator framework structure
+ */
+ hsmmcinfo->dev = &od->pdev.dev;
+
+done:
+ kfree(mmc_data);
+}
void __init omap2_hsmmc_init(struct omap2_hsmmc_info *controllers)
{
- struct omap2_hsmmc_info *c;
- int nr_hsmmc = ARRAY_SIZE(hsmmc_data);
- int i;
u32 reg;
if (!cpu_is_omap44xx()) {
@@ -319,148 +506,9 @@ void __init omap2_hsmmc_init(struct omap2_hsmmc_info *controllers)
omap4_ctrl_pad_writel(reg, control_mmc1);
}
- for (c = controllers; c->mmc; c++) {
- struct hsmmc_controller *hc = hsmmc + c->mmc - 1;
- struct omap_mmc_platform_data *mmc = hsmmc_data[c->mmc - 1];
-
- if (!c->mmc || c->mmc > nr_hsmmc) {
- pr_debug("MMC%d: no such controller\n", c->mmc);
- continue;
- }
- if (mmc) {
- pr_debug("MMC%d: already configured\n", c->mmc);
- continue;
- }
-
- mmc = kzalloc(sizeof(struct omap_mmc_platform_data),
- GFP_KERNEL);
- if (!mmc) {
- pr_err("Cannot allocate memory for mmc device!\n");
- goto done;
- }
-
- if (c->name)
- strncpy(hc->name, c->name, HSMMC_NAME_LEN);
- else
- snprintf(hc->name, ARRAY_SIZE(hc->name),
- "mmc%islot%i", c->mmc, 1);
- mmc->slots[0].name = hc->name;
- mmc->nr_slots = 1;
- mmc->slots[0].caps = c->caps;
- mmc->slots[0].internal_clock = !c->ext_clock;
- mmc->dma_mask = 0xffffffff;
- if (cpu_is_omap44xx())
- mmc->reg_offset = OMAP4_MMC_REG_OFFSET;
- else
- mmc->reg_offset = 0;
-
- mmc->get_context_loss_count = hsmmc_get_context_loss;
-
- mmc->slots[0].switch_pin = c->gpio_cd;
- mmc->slots[0].gpio_wp = c->gpio_wp;
-
- mmc->slots[0].remux = c->remux;
- mmc->slots[0].init_card = c->init_card;
-
- if (c->cover_only)
- mmc->slots[0].cover = 1;
-
- if (c->nonremovable)
- mmc->slots[0].nonremovable = 1;
-
- if (c->power_saving)
- mmc->slots[0].power_saving = 1;
-
- if (c->no_off)
- mmc->slots[0].no_off = 1;
-
- if (c->vcc_aux_disable_is_sleep)
- mmc->slots[0].vcc_aux_disable_is_sleep = 1;
-
- /* NOTE: MMC slots should have a Vcc regulator set up.
- * This may be from a TWL4030-family chip, another
- * controllable regulator, or a fixed supply.
- *
- * temporary HACK: ocr_mask instead of fixed supply
- */
- mmc->slots[0].ocr_mask = c->ocr_mask;
-
- if (cpu_is_omap3517() || cpu_is_omap3505())
- mmc->slots[0].set_power = nop_mmc_set_power;
- else
- mmc->slots[0].features |= HSMMC_HAS_PBIAS;
-
- if (cpu_is_omap44xx() && (omap_rev() > OMAP4430_REV_ES1_0))
- mmc->slots[0].features |= HSMMC_HAS_UPDATED_RESET;
-
- switch (c->mmc) {
- case 1:
- if (mmc->slots[0].features & HSMMC_HAS_PBIAS) {
- /* on-chip level shifting via PBIAS0/PBIAS1 */
- if (cpu_is_omap44xx()) {
- mmc->slots[0].before_set_reg =
- omap4_hsmmc1_before_set_reg;
- mmc->slots[0].after_set_reg =
- omap4_hsmmc1_after_set_reg;
- } else {
- mmc->slots[0].before_set_reg =
- omap_hsmmc1_before_set_reg;
- mmc->slots[0].after_set_reg =
- omap_hsmmc1_after_set_reg;
- }
- }
-
- /* Omap3630 HSMMC1 supports only 4-bit */
- if (cpu_is_omap3630() &&
- (c->caps & MMC_CAP_8_BIT_DATA)) {
- c->caps &= ~MMC_CAP_8_BIT_DATA;
- c->caps |= MMC_CAP_4_BIT_DATA;
- mmc->slots[0].caps = c->caps;
- }
- break;
- case 2:
- if (c->ext_clock)
- c->transceiver = 1;
- if (c->transceiver && (c->caps & MMC_CAP_8_BIT_DATA)) {
- c->caps &= ~MMC_CAP_8_BIT_DATA;
- c->caps |= MMC_CAP_4_BIT_DATA;
- }
- /* FALLTHROUGH */
- case 3:
- if (mmc->slots[0].features & HSMMC_HAS_PBIAS) {
- /* off-chip level shifting, or none */
- mmc->slots[0].before_set_reg = hsmmc23_before_set_reg;
- mmc->slots[0].after_set_reg = NULL;
- }
- break;
- case 4:
- case 5:
- mmc->slots[0].before_set_reg = NULL;
- mmc->slots[0].after_set_reg = NULL;
- break;
- default:
- pr_err("MMC%d configuration not supported!\n", c->mmc);
- kfree(mmc);
- continue;
- }
- hsmmc_data[c->mmc - 1] = mmc;
- omap_hsmmc_mux(hsmmc_data[c->mmc - 1], (c->mmc - 1));
- }
-
- omap2_init_mmc(hsmmc_data, OMAP34XX_NR_MMC);
-
- /* pass the device nodes back to board setup code */
- for (c = controllers; c->mmc; c++) {
- struct omap_mmc_platform_data *mmc = hsmmc_data[c->mmc - 1];
+ for (; controllers->mmc; controllers++)
+ omap_init_hsmmc(controllers, controllers->mmc);
- if (!c->mmc || c->mmc > nr_hsmmc)
- continue;
- c->dev = mmc->dev;
- }
-
-done:
- for (i = 0; i < nr_hsmmc; i++)
- kfree(hsmmc_data[i]);
}
#endif
diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h
index a7afab09571..f38fef9f131 100644
--- a/arch/arm/plat-omap/include/plat/mmc.h
+++ b/arch/arm/plat-omap/include/plat/mmc.h
@@ -24,22 +24,10 @@
#define OMAP1_MMC2_BASE 0xfffb7c00 /* omap16xx only */
#define OMAP24XX_NR_MMC 2
-#define OMAP34XX_NR_MMC 3
-#define OMAP44XX_NR_MMC 5
#define OMAP2420_MMC_SIZE OMAP1_MMC_SIZE
-#define OMAP3_HSMMC_SIZE 0x200
-#define OMAP4_HSMMC_SIZE 0x1000
#define OMAP2_MMC1_BASE 0x4809c000
-#define OMAP2_MMC2_BASE 0x480b4000
-#define OMAP3_MMC3_BASE 0x480ad000
-#define OMAP4_MMC4_BASE 0x480d1000
-#define OMAP4_MMC5_BASE 0x480d5000
+
#define OMAP4_MMC_REG_OFFSET 0x100
-#define HSMMC5 (1 << 4)
-#define HSMMC4 (1 << 3)
-#define HSMMC3 (1 << 2)
-#define HSMMC2 (1 << 1)
-#define HSMMC1 (1 << 0)
#define OMAP_MMC_MAX_SLOTS 2
@@ -169,8 +157,6 @@ extern void omap_mmc_notify_cover_event(struct device *dev, int slot,
void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
int nr_controllers);
void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data);
-void omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
- int nr_controllers);
int omap_mmc_add(const char *name, int id, unsigned long base,
unsigned long size, unsigned int irq,
struct omap_mmc_platform_data *data);
@@ -182,10 +168,6 @@ static inline void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
static inline void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data)
{
}
-static inline void omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
- int nr_controllers)
-{
-}
static inline int omap_mmc_add(const char *name, int id, unsigned long base,
unsigned long size, unsigned int irq,
struct omap_mmc_platform_data *data)
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-17 23:50:47 +0000