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authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/drivers/mmc/mmc_legacy.c
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/drivers/mmc/mmc_legacy.c')
-rw-r--r--roms/u-boot/drivers/mmc/mmc_legacy.c261
1 files changed, 261 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/mmc/mmc_legacy.c b/roms/u-boot/drivers/mmc/mmc_legacy.c
new file mode 100644
index 000000000..a05da6c2e
--- /dev/null
+++ b/roms/u-boot/drivers/mmc/mmc_legacy.c
@@ -0,0 +1,261 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 Google, Inc
+ * Copyright 2020 NXP
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <log.h>
+#include <malloc.h>
+#include <mmc.h>
+#include "mmc_private.h"
+
+static struct list_head mmc_devices;
+static int cur_dev_num = -1;
+
+#if CONFIG_IS_ENABLED(MMC_TINY)
+static struct mmc mmc_static;
+struct mmc *find_mmc_device(int dev_num)
+{
+ return &mmc_static;
+}
+
+void mmc_do_preinit(void)
+{
+ struct mmc *m = &mmc_static;
+ if (m->preinit)
+ mmc_start_init(m);
+}
+
+struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
+{
+ return &mmc->block_dev;
+}
+#else
+struct mmc *find_mmc_device(int dev_num)
+{
+ struct mmc *m;
+ struct list_head *entry;
+
+ list_for_each(entry, &mmc_devices) {
+ m = list_entry(entry, struct mmc, link);
+
+ if (m->block_dev.devnum == dev_num)
+ return m;
+ }
+
+#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
+ printf("MMC Device %d not found\n", dev_num);
+#endif
+
+ return NULL;
+}
+
+int mmc_get_next_devnum(void)
+{
+ return cur_dev_num++;
+}
+
+struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
+{
+ return &mmc->block_dev;
+}
+
+int get_mmc_num(void)
+{
+ return cur_dev_num;
+}
+
+void mmc_do_preinit(void)
+{
+ struct mmc *m;
+ struct list_head *entry;
+
+ list_for_each(entry, &mmc_devices) {
+ m = list_entry(entry, struct mmc, link);
+
+ if (m->preinit)
+ mmc_start_init(m);
+ }
+}
+#endif
+
+void mmc_list_init(void)
+{
+ INIT_LIST_HEAD(&mmc_devices);
+ cur_dev_num = 0;
+}
+
+void mmc_list_add(struct mmc *mmc)
+{
+ INIT_LIST_HEAD(&mmc->link);
+
+ list_add_tail(&mmc->link, &mmc_devices);
+}
+
+#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
+void print_mmc_devices(char separator)
+{
+ struct mmc *m;
+ struct list_head *entry;
+ char *mmc_type;
+
+ list_for_each(entry, &mmc_devices) {
+ m = list_entry(entry, struct mmc, link);
+
+ if (m->has_init)
+ mmc_type = IS_SD(m) ? "SD" : "eMMC";
+ else
+ mmc_type = NULL;
+
+ printf("%s: %d", m->cfg->name, m->block_dev.devnum);
+ if (mmc_type)
+ printf(" (%s)", mmc_type);
+
+ if (entry->next != &mmc_devices) {
+ printf("%c", separator);
+ if (separator != '\n')
+ puts(" ");
+ }
+ }
+
+ printf("\n");
+}
+
+#else
+void print_mmc_devices(char separator) { }
+#endif
+
+#if CONFIG_IS_ENABLED(MMC_TINY)
+static struct mmc mmc_static = {
+ .dsr_imp = 0,
+ .dsr = 0xffffffff,
+ .block_dev = {
+ .if_type = IF_TYPE_MMC,
+ .removable = 1,
+ .devnum = 0,
+ .block_read = mmc_bread,
+ .block_write = mmc_bwrite,
+ .block_erase = mmc_berase,
+ .part_type = 0,
+ },
+};
+
+struct mmc *mmc_create(const struct mmc_config *cfg, void *priv)
+{
+ struct mmc *mmc = &mmc_static;
+
+ /* First MMC device registered, fail to register a new one.
+ * Given users are not expecting this to fail, instead
+ * of failing let's just return the only MMC device
+ */
+ if (mmc->cfg) {
+ debug("Warning: MMC_TINY doesn't support multiple MMC devices\n");
+ return mmc;
+ }
+
+ mmc->cfg = cfg;
+ mmc->priv = priv;
+
+ return mmc;
+}
+
+void mmc_destroy(struct mmc *mmc)
+{
+}
+#else
+struct mmc *mmc_create(const struct mmc_config *cfg, void *priv)
+{
+ struct blk_desc *bdesc;
+ struct mmc *mmc;
+
+ /* quick validation */
+ if (cfg == NULL || cfg->f_min == 0 ||
+ cfg->f_max == 0 || cfg->b_max == 0)
+ return NULL;
+
+#if !CONFIG_IS_ENABLED(DM_MMC)
+ if (cfg->ops == NULL || cfg->ops->send_cmd == NULL)
+ return NULL;
+#endif
+
+ mmc = calloc(1, sizeof(*mmc));
+ if (mmc == NULL)
+ return NULL;
+
+ mmc->cfg = cfg;
+ mmc->priv = priv;
+
+ /* the following chunk was mmc_register() */
+
+ /* Setup dsr related values */
+ mmc->dsr_imp = 0;
+ mmc->dsr = 0xffffffff;
+ /* Setup the universal parts of the block interface just once */
+ bdesc = mmc_get_blk_desc(mmc);
+ bdesc->if_type = IF_TYPE_MMC;
+ bdesc->removable = 1;
+ bdesc->devnum = mmc_get_next_devnum();
+ bdesc->block_read = mmc_bread;
+ bdesc->block_write = mmc_bwrite;
+ bdesc->block_erase = mmc_berase;
+
+ /* setup initial part type */
+ bdesc->part_type = mmc->cfg->part_type;
+ mmc_list_add(mmc);
+
+ return mmc;
+}
+
+void mmc_destroy(struct mmc *mmc)
+{
+ /* only freeing memory for now */
+ free(mmc);
+}
+#endif
+
+static int mmc_select_hwpartp(struct blk_desc *desc, int hwpart)
+{
+ struct mmc *mmc = find_mmc_device(desc->devnum);
+ int ret;
+
+ if (!mmc)
+ return -ENODEV;
+
+ if (mmc->block_dev.hwpart == hwpart)
+ return 0;
+
+ if (mmc->part_config == MMCPART_NOAVAILABLE)
+ return -EMEDIUMTYPE;
+
+ ret = mmc_switch_part(mmc, hwpart);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int mmc_get_dev(int dev, struct blk_desc **descp)
+{
+ struct mmc *mmc = find_mmc_device(dev);
+ int ret;
+
+ if (!mmc)
+ return -ENODEV;
+ ret = mmc_init(mmc);
+ if (ret)
+ return ret;
+
+ *descp = &mmc->block_dev;
+
+ return 0;
+}
+
+U_BOOT_LEGACY_BLK(mmc) = {
+ .if_typename = "mmc",
+ .if_type = IF_TYPE_MMC,
+ .max_devs = -1,
+ .get_dev = mmc_get_dev,
+ .select_hwpart = mmc_select_hwpartp,
+};