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Diffstat (limited to 'target/linux/layerscape/patches-4.9/812-mmc-layerscape-support.patch')
-rw-r--r--target/linux/layerscape/patches-4.9/812-mmc-layerscape-support.patch52
1 files changed, 33 insertions, 19 deletions
diff --git a/target/linux/layerscape/patches-4.9/812-mmc-layerscape-support.patch b/target/linux/layerscape/patches-4.9/812-mmc-layerscape-support.patch
index 6cad565ad2..1d3899d28b 100644
--- a/target/linux/layerscape/patches-4.9/812-mmc-layerscape-support.patch
+++ b/target/linux/layerscape/patches-4.9/812-mmc-layerscape-support.patch
@@ -1,9 +1,9 @@
-From b31046c51c72232363711f0c623df08bf28c37e4 Mon Sep 17 00:00:00 2001
+From 4215d5757595e7ec7ca146c2b901beb177f415d8 Mon Sep 17 00:00:00 2001
From: Yangbo Lu <yangbo.lu@nxp.com>
-Date: Mon, 25 Sep 2017 12:21:30 +0800
-Subject: [PATCH] mmc: layerscape support
+Date: Wed, 17 Jan 2018 15:37:13 +0800
+Subject: [PATCH 24/30] mmc: layerscape support
-This is a integrated patch for layerscape mmc support.
+This is an integrated patch for layerscape mmc support.
Adrian Hunter <adrian.hunter@intel.com>
Jaehoon Chung <jh80.chung@samsung.com>
@@ -12,10 +12,10 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
---
drivers/mmc/host/Kconfig | 1 +
drivers/mmc/host/sdhci-esdhc.h | 52 +++++---
- drivers/mmc/host/sdhci-of-esdhc.c | 251 ++++++++++++++++++++++++++++++++++++--
+ drivers/mmc/host/sdhci-of-esdhc.c | 265 ++++++++++++++++++++++++++++++++++++--
drivers/mmc/host/sdhci.c | 45 ++++---
drivers/mmc/host/sdhci.h | 3 +
- 5 files changed, 306 insertions(+), 46 deletions(-)
+ 5 files changed, 320 insertions(+), 46 deletions(-)
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -253,9 +253,16 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
/* Workaround to reduce the clock frequency for p1010 esdhc */
if (of_find_compatible_node(NULL, NULL, "fsl,p1010-esdhc")) {
if (clock > 20000000)
-@@ -441,8 +503,8 @@ static void esdhc_of_set_clock(struct sd
+@@ -440,9 +502,15 @@ static void esdhc_of_set_clock(struct sd
+ clock -= 5000000;
}
++ /* Workaround to reduce the clock frequency for ls1021a esdhc */
++ if (of_find_compatible_node(NULL, NULL, "fsl,ls1021a-esdhc")) {
++ if (clock == 50000000)
++ clock = 46500000;
++ }
++
temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
- temp &= ~(ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN
- | ESDHC_CLOCK_MASK);
@@ -264,7 +271,7 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
while (host->max_clk / pre_div / 16 > clock && pre_div < 256)
-@@ -462,7 +524,20 @@ static void esdhc_of_set_clock(struct sd
+@@ -462,7 +530,20 @@ static void esdhc_of_set_clock(struct sd
| (div << ESDHC_DIVIDER_SHIFT)
| (pre_div << ESDHC_PREDIV_SHIFT));
sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
@@ -286,7 +293,7 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
}
static void esdhc_pltfm_set_bus_width(struct sdhci_host *host, int width)
-@@ -487,6 +562,33 @@ static void esdhc_pltfm_set_bus_width(st
+@@ -487,12 +568,136 @@ static void esdhc_pltfm_set_bus_width(st
sdhci_writel(host, ctrl, ESDHC_PROCTL);
}
@@ -319,11 +326,20 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
+
static void esdhc_reset(struct sdhci_host *host, u8 mask)
{
++ u32 val;
++
sdhci_reset(host, mask);
-@@ -495,6 +597,95 @@ static void esdhc_reset(struct sdhci_hos
- sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);
- }
+ sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);
+ sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);
++
++ if (mask & SDHCI_RESET_ALL) {
++ val = sdhci_readl(host, ESDHC_TBCTL);
++ val &= ~ESDHC_TB_EN;
++ sdhci_writel(host, val, ESDHC_TBCTL);
++ }
++}
++
+/* The SCFG, Supplemental Configuration Unit, provides SoC specific
+ * configuration and status registers for the device. There is a
+ * SDHC IO VSEL control register on SCFG for some platforms. It's
@@ -411,12 +427,10 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
+ esdhc_clock_enable(host, true);
+
+ return sdhci_execute_tuning(mmc, opcode);
-+}
-+
+ }
+
#ifdef CONFIG_PM_SLEEP
- static u32 esdhc_proctl;
- static int esdhc_of_suspend(struct device *dev)
-@@ -575,10 +766,19 @@ static const struct sdhci_pltfm_data sdh
+@@ -575,10 +780,19 @@ static const struct sdhci_pltfm_data sdh
.ops = &sdhci_esdhc_le_ops,
};
@@ -436,7 +450,7 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
u16 host_ver;
pltfm_host = sdhci_priv(host);
-@@ -588,6 +788,36 @@ static void esdhc_init(struct platform_d
+@@ -588,6 +802,36 @@ static void esdhc_init(struct platform_d
esdhc->vendor_ver = (host_ver & SDHCI_VENDOR_VER_MASK) >>
SDHCI_VENDOR_VER_SHIFT;
esdhc->spec_ver = host_ver & SDHCI_SPEC_VER_MASK;
@@ -473,7 +487,7 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
}
static int sdhci_esdhc_probe(struct platform_device *pdev)
-@@ -610,6 +840,11 @@ static int sdhci_esdhc_probe(struct plat
+@@ -610,6 +854,11 @@ static int sdhci_esdhc_probe(struct plat
if (IS_ERR(host))
return PTR_ERR(host);