Initial Contribution
msm-2.6.38: tag AU_LINUX_ANDROID_GINGERBREAD.02.03.04.00.142
Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-mahimahi-mmc.c b/arch/arm/mach-msm/board-mahimahi-mmc.c
new file mode 100644
index 0000000..78ed97f
--- /dev/null
+++ b/arch/arm/mach-msm/board-mahimahi-mmc.c
@@ -0,0 +1,454 @@
+/* linux/arch/arm/mach-msm/board-mahimahi-mmc.c
+ *
+ * Copyright (C) 2009 Google, Inc.
+ * Copyright (C) 2009 HTC Corporation
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/debugfs.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/sdio_ids.h>
+#include <linux/platform_device.h>
+
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/mach/mmc.h>
+
+#include <mach/vreg.h>
+
+#include "board-mahimahi.h"
+#include "devices.h"
+#include "proc_comm.h"
+
+#undef MAHIMAHI_DEBUG_MMC
+
+static bool opt_disable_sdcard;
+static int __init mahimahi_disablesdcard_setup(char *str)
+{
+ opt_disable_sdcard = (bool)simple_strtol(str, NULL, 0);
+ return 1;
+}
+
+__setup("board_mahimahi.disable_sdcard=", mahimahi_disablesdcard_setup);
+
+static void config_gpio_table(uint32_t *table, int len)
+{
+ int n;
+ unsigned id;
+ for(n = 0; n < len; n++) {
+ id = table[n];
+ msm_proc_comm(PCOM_RPC_GPIO_TLMM_CONFIG_EX, &id, 0);
+ }
+}
+
+static uint32_t sdcard_on_gpio_table[] = {
+ PCOM_GPIO_CFG(62, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_8MA), /* CLK */
+ PCOM_GPIO_CFG(63, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* CMD */
+ PCOM_GPIO_CFG(64, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT3 */
+ PCOM_GPIO_CFG(65, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT2 */
+ PCOM_GPIO_CFG(66, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT1 */
+ PCOM_GPIO_CFG(67, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT0 */
+};
+
+static uint32_t sdcard_off_gpio_table[] = {
+ PCOM_GPIO_CFG(62, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CLK */
+ PCOM_GPIO_CFG(63, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CMD */
+ PCOM_GPIO_CFG(64, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT3 */
+ PCOM_GPIO_CFG(65, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT2 */
+ PCOM_GPIO_CFG(66, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT1 */
+ PCOM_GPIO_CFG(67, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT0 */
+};
+
+static struct vreg *sdslot_vreg;
+static uint32_t sdslot_vdd = 0xffffffff;
+static uint32_t sdslot_vreg_enabled;
+
+static struct {
+ int mask;
+ int level;
+} mmc_vdd_table[] = {
+ { MMC_VDD_165_195, 1800 },
+ { MMC_VDD_20_21, 2050 },
+ { MMC_VDD_21_22, 2150 },
+ { MMC_VDD_22_23, 2250 },
+ { MMC_VDD_23_24, 2350 },
+ { MMC_VDD_24_25, 2450 },
+ { MMC_VDD_25_26, 2550 },
+ { MMC_VDD_26_27, 2650 },
+ { MMC_VDD_27_28, 2750 },
+ { MMC_VDD_28_29, 2850 },
+ { MMC_VDD_29_30, 2950 },
+};
+
+static uint32_t mahimahi_sdslot_switchvdd(struct device *dev, unsigned int vdd)
+{
+ int i;
+ int ret;
+
+ if (vdd == sdslot_vdd)
+ return 0;
+
+ sdslot_vdd = vdd;
+
+ if (vdd == 0) {
+ config_gpio_table(sdcard_off_gpio_table,
+ ARRAY_SIZE(sdcard_off_gpio_table));
+ vreg_disable(sdslot_vreg);
+ sdslot_vreg_enabled = 0;
+ return 0;
+ }
+
+ if (!sdslot_vreg_enabled) {
+ ret = vreg_enable(sdslot_vreg);
+ if (ret)
+ pr_err("%s: Error enabling vreg (%d)\n", __func__, ret);
+ config_gpio_table(sdcard_on_gpio_table,
+ ARRAY_SIZE(sdcard_on_gpio_table));
+ sdslot_vreg_enabled = 1;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(mmc_vdd_table); i++) {
+ if (mmc_vdd_table[i].mask != (1 << vdd))
+ continue;
+ ret = vreg_set_level(sdslot_vreg, mmc_vdd_table[i].level);
+ if (ret)
+ pr_err("%s: Error setting level (%d)\n", __func__, ret);
+ return 0;
+ }
+
+ pr_err("%s: Invalid VDD (%d) specified\n", __func__, vdd);
+ return 0;
+}
+
+static uint32_t mahimahi_cdma_sdslot_switchvdd(struct device *dev, unsigned int vdd)
+{
+ if (!vdd == !sdslot_vdd)
+ return 0;
+
+ /* In CDMA version, the vdd of sdslot is not configurable, and it is
+ * fixed in 2.85V by hardware design.
+ */
+
+ sdslot_vdd = vdd ? MMC_VDD_28_29 : 0;
+
+ if (vdd) {
+ gpio_set_value(MAHIMAHI_CDMA_SD_2V85_EN, 1);
+ config_gpio_table(sdcard_on_gpio_table,
+ ARRAY_SIZE(sdcard_on_gpio_table));
+ } else {
+ config_gpio_table(sdcard_off_gpio_table,
+ ARRAY_SIZE(sdcard_off_gpio_table));
+ gpio_set_value(MAHIMAHI_CDMA_SD_2V85_EN, 0);
+ }
+
+ sdslot_vreg_enabled = !!vdd;
+
+ return 0;
+}
+
+static unsigned int mahimahi_sdslot_status_rev0(struct device *dev)
+{
+ return !gpio_get_value(MAHIMAHI_GPIO_SDMC_CD_REV0_N);
+}
+
+#define MAHIMAHI_MMC_VDD (MMC_VDD_165_195 | MMC_VDD_20_21 | \
+ MMC_VDD_21_22 | MMC_VDD_22_23 | \
+ MMC_VDD_23_24 | MMC_VDD_24_25 | \
+ MMC_VDD_25_26 | MMC_VDD_26_27 | \
+ MMC_VDD_27_28 | MMC_VDD_28_29 | \
+ MMC_VDD_29_30)
+
+int mahimahi_microp_sdslot_status_register(void (*cb)(int, void *), void *);
+unsigned int mahimahi_microp_sdslot_status(struct device *);
+
+static struct mmc_platform_data mahimahi_sdslot_data = {
+ .ocr_mask = MAHIMAHI_MMC_VDD,
+ .status = mahimahi_microp_sdslot_status,
+ .register_status_notify = mahimahi_microp_sdslot_status_register,
+ .translate_vdd = mahimahi_sdslot_switchvdd,
+};
+
+static uint32_t wifi_on_gpio_table[] = {
+ PCOM_GPIO_CFG(51, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT3 */
+ PCOM_GPIO_CFG(52, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT2 */
+ PCOM_GPIO_CFG(53, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT1 */
+ PCOM_GPIO_CFG(54, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT0 */
+ PCOM_GPIO_CFG(55, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* CMD */
+ PCOM_GPIO_CFG(56, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_8MA), /* CLK */
+ PCOM_GPIO_CFG(152, 0, GPIO_INPUT, GPIO_NO_PULL, GPIO_4MA), /* WLAN IRQ */
+};
+
+static uint32_t wifi_off_gpio_table[] = {
+ PCOM_GPIO_CFG(51, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT3 */
+ PCOM_GPIO_CFG(52, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT2 */
+ PCOM_GPIO_CFG(53, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT1 */
+ PCOM_GPIO_CFG(54, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT0 */
+ PCOM_GPIO_CFG(55, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CMD */
+ PCOM_GPIO_CFG(56, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CLK */
+ PCOM_GPIO_CFG(152, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* WLAN IRQ */
+};
+
+/* BCM4329 returns wrong sdio_vsn(1) when we read cccr,
+ * we use predefined value (sdio_vsn=2) here to initial sdio driver well
+ */
+static struct embedded_sdio_data mahimahi_wifi_emb_data = {
+ .cccr = {
+ .sdio_vsn = 2,
+ .multi_block = 1,
+ .low_speed = 0,
+ .wide_bus = 0,
+ .high_power = 1,
+ .high_speed = 1,
+ },
+};
+
+static int mahimahi_wifi_cd = 0; /* WIFI virtual 'card detect' status */
+static void (*wifi_status_cb)(int card_present, void *dev_id);
+static void *wifi_status_cb_devid;
+
+static int mahimahi_wifi_status_register(
+ void (*callback)(int card_present, void *dev_id),
+ void *dev_id)
+{
+ if (wifi_status_cb)
+ return -EAGAIN;
+ wifi_status_cb = callback;
+ wifi_status_cb_devid = dev_id;
+ return 0;
+}
+
+static unsigned int mahimahi_wifi_status(struct device *dev)
+{
+ return mahimahi_wifi_cd;
+}
+
+static struct mmc_platform_data mahimahi_wifi_data = {
+ .ocr_mask = MMC_VDD_28_29,
+ .built_in = 1,
+ .status = mahimahi_wifi_status,
+ .register_status_notify = mahimahi_wifi_status_register,
+ .embedded_sdio = &mahimahi_wifi_emb_data,
+};
+
+int mahimahi_wifi_set_carddetect(int val)
+{
+ pr_info("%s: %d\n", __func__, val);
+ mahimahi_wifi_cd = val;
+ if (wifi_status_cb) {
+ wifi_status_cb(val, wifi_status_cb_devid);
+ } else
+ pr_warning("%s: Nobody to notify\n", __func__);
+ return 0;
+}
+
+static int mahimahi_wifi_power_state;
+
+int mahimahi_wifi_power(int on)
+{
+ printk("%s: %d\n", __func__, on);
+
+ if (on) {
+ config_gpio_table(wifi_on_gpio_table,
+ ARRAY_SIZE(wifi_on_gpio_table));
+ mdelay(50);
+ } else {
+ config_gpio_table(wifi_off_gpio_table,
+ ARRAY_SIZE(wifi_off_gpio_table));
+ }
+
+ mdelay(100);
+ gpio_set_value(MAHIMAHI_GPIO_WIFI_SHUTDOWN_N, on); /* WIFI_SHUTDOWN */
+ mdelay(200);
+
+ mahimahi_wifi_power_state = on;
+ return 0;
+}
+
+static int mahimahi_wifi_reset_state;
+
+int mahimahi_wifi_reset(int on)
+{
+ printk("%s: do nothing\n", __func__);
+ mahimahi_wifi_reset_state = on;
+ return 0;
+}
+
+int msm_add_sdcc(unsigned int controller, struct mmc_platform_data *plat,
+ unsigned int stat_irq, unsigned long stat_irq_flags);
+
+int __init mahimahi_init_mmc(unsigned int sys_rev, unsigned debug_uart)
+{
+ uint32_t id;
+
+ printk("%s()+\n", __func__);
+
+ /* initial WIFI_SHUTDOWN# */
+ id = PCOM_GPIO_CFG(MAHIMAHI_GPIO_WIFI_SHUTDOWN_N, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_2MA),
+ msm_proc_comm(PCOM_RPC_GPIO_TLMM_CONFIG_EX, &id, 0);
+
+ msm_add_sdcc(1, &mahimahi_wifi_data, 0, 0);
+
+ if (debug_uart) {
+ pr_info("%s: sdcard disabled due to debug uart\n", __func__);
+ goto done;
+ }
+ if (opt_disable_sdcard) {
+ pr_info("%s: sdcard disabled on cmdline\n", __func__);
+ goto done;
+ }
+
+ sdslot_vreg_enabled = 0;
+
+ if (is_cdma_version(sys_rev)) {
+ /* In the CDMA version, sdslot is supplied by a gpio. */
+ int rc = gpio_request(MAHIMAHI_CDMA_SD_2V85_EN, "sdslot_en");
+ if (rc < 0) {
+ pr_err("%s: gpio_request(%d) failed: %d\n", __func__,
+ MAHIMAHI_CDMA_SD_2V85_EN, rc);
+ return rc;
+ }
+ mahimahi_sdslot_data.translate_vdd = mahimahi_cdma_sdslot_switchvdd;
+ } else {
+ /* in UMTS version, sdslot is supplied by pmic */
+ sdslot_vreg = vreg_get(0, "gp6");
+ if (IS_ERR(sdslot_vreg))
+ return PTR_ERR(sdslot_vreg);
+ }
+
+ if (system_rev > 0)
+ msm_add_sdcc(2, &mahimahi_sdslot_data, 0, 0);
+ else {
+ mahimahi_sdslot_data.status = mahimahi_sdslot_status_rev0;
+ mahimahi_sdslot_data.register_status_notify = NULL;
+ set_irq_wake(MSM_GPIO_TO_INT(MAHIMAHI_GPIO_SDMC_CD_REV0_N), 1);
+ msm_add_sdcc(2, &mahimahi_sdslot_data,
+ MSM_GPIO_TO_INT(MAHIMAHI_GPIO_SDMC_CD_REV0_N),
+ IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE);
+ }
+
+done:
+ printk("%s()-\n", __func__);
+ return 0;
+}
+
+#if defined(MAHIMAHI_DEBUG_MMC) && defined(CONFIG_DEBUG_FS)
+
+static int mahimahimmc_dbg_wifi_reset_set(void *data, u64 val)
+{
+ mahimahi_wifi_reset((int) val);
+ return 0;
+}
+
+static int mahimahimmc_dbg_wifi_reset_get(void *data, u64 *val)
+{
+ *val = mahimahi_wifi_reset_state;
+ return 0;
+}
+
+static int mahimahimmc_dbg_wifi_cd_set(void *data, u64 val)
+{
+ mahimahi_wifi_set_carddetect((int) val);
+ return 0;
+}
+
+static int mahimahimmc_dbg_wifi_cd_get(void *data, u64 *val)
+{
+ *val = mahimahi_wifi_cd;
+ return 0;
+}
+
+static int mahimahimmc_dbg_wifi_pwr_set(void *data, u64 val)
+{
+ mahimahi_wifi_power((int) val);
+ return 0;
+}
+
+static int mahimahimmc_dbg_wifi_pwr_get(void *data, u64 *val)
+{
+ *val = mahimahi_wifi_power_state;
+ return 0;
+}
+
+static int mahimahimmc_dbg_sd_pwr_set(void *data, u64 val)
+{
+ mahimahi_sdslot_switchvdd(NULL, (unsigned int) val);
+ return 0;
+}
+
+static int mahimahimmc_dbg_sd_pwr_get(void *data, u64 *val)
+{
+ *val = sdslot_vdd;
+ return 0;
+}
+
+static int mahimahimmc_dbg_sd_cd_set(void *data, u64 val)
+{
+ return -ENOSYS;
+}
+
+static int mahimahimmc_dbg_sd_cd_get(void *data, u64 *val)
+{
+ *val = mahimahi_sdslot_data.status(NULL);
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(mahimahimmc_dbg_wifi_reset_fops,
+ mahimahimmc_dbg_wifi_reset_get,
+ mahimahimmc_dbg_wifi_reset_set, "%llu\n");
+
+DEFINE_SIMPLE_ATTRIBUTE(mahimahimmc_dbg_wifi_cd_fops,
+ mahimahimmc_dbg_wifi_cd_get,
+ mahimahimmc_dbg_wifi_cd_set, "%llu\n");
+
+DEFINE_SIMPLE_ATTRIBUTE(mahimahimmc_dbg_wifi_pwr_fops,
+ mahimahimmc_dbg_wifi_pwr_get,
+ mahimahimmc_dbg_wifi_pwr_set, "%llu\n");
+
+DEFINE_SIMPLE_ATTRIBUTE(mahimahimmc_dbg_sd_pwr_fops,
+ mahimahimmc_dbg_sd_pwr_get,
+ mahimahimmc_dbg_sd_pwr_set, "%llu\n");
+
+DEFINE_SIMPLE_ATTRIBUTE(mahimahimmc_dbg_sd_cd_fops,
+ mahimahimmc_dbg_sd_cd_get,
+ mahimahimmc_dbg_sd_cd_set, "%llu\n");
+
+static int __init mahimahimmc_dbg_init(void)
+{
+ struct dentry *dent;
+
+ if (!machine_is_mahimahi())
+ return 0;
+
+ dent = debugfs_create_dir("mahimahi_mmc_dbg", 0);
+ if (IS_ERR(dent))
+ return PTR_ERR(dent);
+
+ debugfs_create_file("wifi_reset", 0644, dent, NULL,
+ &mahimahimmc_dbg_wifi_reset_fops);
+ debugfs_create_file("wifi_cd", 0644, dent, NULL,
+ &mahimahimmc_dbg_wifi_cd_fops);
+ debugfs_create_file("wifi_pwr", 0644, dent, NULL,
+ &mahimahimmc_dbg_wifi_pwr_fops);
+ debugfs_create_file("sd_pwr", 0644, dent, NULL,
+ &mahimahimmc_dbg_sd_pwr_fops);
+ debugfs_create_file("sd_cd", 0644, dent, NULL,
+ &mahimahimmc_dbg_sd_cd_fops);
+ return 0;
+}
+
+device_initcall(mahimahimmc_dbg_init);
+#endif