Initial commit

package/boot/uboot-d1/patches/0016-sunxi-mmc-ignore-card-detect-in-SPL.patch

@@ -0,0 +1,92 @@
+From 2cde6c8a7c41c13137298c19b4e104e4f5d6851c Mon Sep 17 00:00:00 2001
+From: Andre Przywara <andre.przywara@arm.com>
+Date: Wed, 13 Jul 2022 17:21:43 +0100
+Subject: [PATCH 16/90] sunxi: mmc: ignore card detect in SPL
+
+The sunxi MMC code does not use the DM in the SPL, as we don't have a
+device tree available that early, also no space for it.
+This also means we cannot access the card-detect GPIO information from
+there, so we have Kconfig symbols called CONFIG_MMCx_CD_PIN, which each
+board has to define. This is a burden, also requires extra GPIO code in
+the SPL.
+As the SPL is the natural successor of the BootROM (from which we are
+loaded), we can actually ignore the CD pin completely, as this is what
+the BootROM does as well: CD GPIOs are board specific, but the BootROM
+is not, so accesses the MMC devices anyway.
+
+Remove the card detect code from the non-DM implementation of the sunxi
+MMC driver, to get rid of this unneeded code.
+
+Signed-off-by: Andre Przywara <andre.przywara@arm.com>
+---
+ drivers/mmc/sunxi_mmc.c | 37 ++-----------------------------------
+ 1 file changed, 2 insertions(+), 35 deletions(-)
+
+--- a/drivers/mmc/sunxi_mmc.c
++++ b/drivers/mmc/sunxi_mmc.c
+@@ -44,22 +44,10 @@ struct sunxi_mmc_priv {
+ /* support 4 mmc hosts */
+ struct sunxi_mmc_priv mmc_host[4];
+ 
+-static int sunxi_mmc_getcd_gpio(int sdc_no)
+-{
+-	switch (sdc_no) {
+-	case 0: return sunxi_name_to_gpio(CONFIG_MMC0_CD_PIN);
+-	case 1: return sunxi_name_to_gpio(CONFIG_MMC1_CD_PIN);
+-	case 2: return sunxi_name_to_gpio(CONFIG_MMC2_CD_PIN);
+-	case 3: return sunxi_name_to_gpio(CONFIG_MMC3_CD_PIN);
+-	}
+-	return -EINVAL;
+-}
+-
+ static int mmc_resource_init(int sdc_no)
+ {
+ 	struct sunxi_mmc_priv *priv = &mmc_host[sdc_no];
+ 	struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+-	int cd_pin, ret = 0;
+ 
+ 	debug("init mmc %d resource\n", sdc_no);
+ 
+@@ -90,16 +78,7 @@ static int mmc_resource_init(int sdc_no)
+ 	}
+ 	priv->mmc_no = sdc_no;
+ 
+-	cd_pin = sunxi_mmc_getcd_gpio(sdc_no);
+-	if (cd_pin >= 0) {
+-		ret = gpio_request(cd_pin, "mmc_cd");
+-		if (!ret) {
+-			sunxi_gpio_set_pull(cd_pin, SUNXI_GPIO_PULL_UP);
+-			ret = gpio_direction_input(cd_pin);
+-		}
+-	}
+-
+-	return ret;
++	return 0;
+ }
+ #endif
+ 
+@@ -523,23 +502,11 @@ static int sunxi_mmc_send_cmd_legacy(str
+ 	return sunxi_mmc_send_cmd_common(priv, mmc, cmd, data);
+ }
+ 
+-static int sunxi_mmc_getcd_legacy(struct mmc *mmc)
+-{
+-	struct sunxi_mmc_priv *priv = mmc->priv;
+-	int cd_pin;
+-
+-	cd_pin = sunxi_mmc_getcd_gpio(priv->mmc_no);
+-	if (cd_pin < 0)
+-		return 1;
+-
+-	return !gpio_get_value(cd_pin);
+-}
+-
++/* .get_cd is not needed by the SPL */
+ static const struct mmc_ops sunxi_mmc_ops = {
+ 	.send_cmd	= sunxi_mmc_send_cmd_legacy,
+ 	.set_ios	= sunxi_mmc_set_ios_legacy,
+ 	.init		= sunxi_mmc_core_init,
+-	.getcd		= sunxi_mmc_getcd_legacy,
+ };
+ 
+ struct mmc *sunxi_mmc_init(int sdc_no)