openwrt/target/linux/bcm27xx/patches-4.19/950-0802-mmc-sdhci-iproc-Fix-vmmc-regulators-on-iProc.patch
Adrian Schmutzler 7d7aa2fd92 brcm2708: rename target to bcm27xx
This change makes the names of Broadcom targets consistent by using
the common notation based on SoC/CPU ID (which is used internally
anyway), bcmXXXX instead of brcmXXXX.
This is even used for target TITLE in make menuconfig already,
only the short target name used brcm so far.

Despite, since subtargets range from bcm2708 to bcm2711, it seems
appropriate to use bcm27xx instead of bcm2708 (again, as already done
for BOARDNAME).

This also renames the packages brcm2708-userland and brcm2708-gpu-fw.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
2020-02-14 14:10:51 +01:00

47 lines
1.7 KiB
Diff

From 5ee0de9d7abd644d4cb678fe26ac5130a1a8075f Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Fri, 2 Aug 2019 15:20:11 +0100
Subject: [PATCH] mmc: sdhci-iproc: Fix vmmc regulators on iProc
The Linux support for controlling card power via regulators appears to
be contentious. I would argue that the default behaviour is contrary to
the SDHCI spec - turning off the power writes a reserved value to the
SD Bus Voltage Select field of the Power Control Register, which
seems to kill the Arasan/iProc controller - but fortunately there is a
hook in sdhci_ops to override the behaviour. Borrow the implementation
from sdhci_arasan_set_power.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
drivers/mmc/host/sdhci-iproc.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
--- a/drivers/mmc/host/sdhci-iproc.c
+++ b/drivers/mmc/host/sdhci-iproc.c
@@ -162,6 +162,17 @@ static void sdhci_iproc_writeb(struct sd
sdhci_iproc_writel(host, newval, reg & ~3);
}
+static void sdhci_iproc_set_power(struct sdhci_host *host, unsigned char mode,
+ unsigned short vdd)
+{
+ if (!IS_ERR(host->mmc->supply.vmmc)) {
+ struct mmc_host *mmc = host->mmc;
+
+ mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
+ }
+ sdhci_set_power_noreg(host, mode, vdd);
+}
+
static const struct sdhci_ops sdhci_iproc_ops = {
.set_clock = sdhci_set_clock,
.get_max_clock = sdhci_pltfm_clk_get_max_clock,
@@ -178,6 +189,7 @@ static const struct sdhci_ops sdhci_ipro
.write_w = sdhci_iproc_writew,
.write_b = sdhci_iproc_writeb,
.set_clock = sdhci_set_clock,
+ .set_power = sdhci_iproc_set_power,
.get_max_clock = sdhci_pltfm_clk_get_max_clock,
.set_bus_width = sdhci_set_bus_width,
.reset = sdhci_reset,