mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 10:08:59 +00:00
770a9c6787
All modifications made by update_kernel.sh/no manual intervention needed Run-tested: ipq806x (R7800), ath79 (Archer C7v5), x86/64 No dmesg regressions, everything appears functional Signed-off-by: John Audia <graysky@archlinux.us> [add run test from PR] Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
78 lines
2.5 KiB
Diff
78 lines
2.5 KiB
Diff
From e95c04bd6d9ebe081126184fb228461b1b3fa7aa Mon Sep 17 00:00:00 2001
|
|
From: Yangbo Lu <yangbo.lu@nxp.com>
|
|
Date: Thu, 12 Dec 2019 15:52:18 +0800
|
|
Subject: [PATCH] LF-605 mmc: sdhci-of-esdhc: convert to use
|
|
esdhc_tuning_window_ptr()
|
|
|
|
Convert to use a new function esdhc_tuning_window_ptr() to
|
|
get tuning window start point and end point.
|
|
|
|
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
|
|
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
|
|
---
|
|
drivers/mmc/host/sdhci-of-esdhc.c | 34 +++++++++++++++++++++-------------
|
|
1 file changed, 21 insertions(+), 13 deletions(-)
|
|
|
|
--- a/drivers/mmc/host/sdhci-of-esdhc.c
|
|
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
|
|
@@ -924,20 +924,11 @@ static void esdhc_tuning_block_enable(st
|
|
esdhc_clock_enable(host, true);
|
|
}
|
|
|
|
-static void esdhc_prepare_sw_tuning(struct sdhci_host *host, u8 *window_start,
|
|
+static void esdhc_tuning_window_ptr(struct sdhci_host *host, u8 *window_start,
|
|
u8 *window_end)
|
|
{
|
|
- struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
|
|
- struct sdhci_esdhc *esdhc = sdhci_pltfm_priv(pltfm_host);
|
|
- u8 tbstat_15_8, tbstat_7_0;
|
|
u32 val;
|
|
|
|
- if (esdhc->quirk_tuning_erratum_type1) {
|
|
- *window_start = 5 * esdhc->div_ratio;
|
|
- *window_end = 3 * esdhc->div_ratio;
|
|
- return;
|
|
- }
|
|
-
|
|
/* Write TBCTL[11:8]=4'h8 */
|
|
val = sdhci_readl(host, ESDHC_TBCTL);
|
|
val &= ~(0xf << 8);
|
|
@@ -956,6 +947,25 @@ static void esdhc_prepare_sw_tuning(stru
|
|
val = sdhci_readl(host, ESDHC_TBSTAT);
|
|
val = sdhci_readl(host, ESDHC_TBSTAT);
|
|
|
|
+ *window_end = val & 0xff;
|
|
+ *window_start = (val >> 8) & 0xff;
|
|
+}
|
|
+
|
|
+static void esdhc_prepare_sw_tuning(struct sdhci_host *host, u8 *window_start,
|
|
+ u8 *window_end)
|
|
+{
|
|
+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
|
|
+ struct sdhci_esdhc *esdhc = sdhci_pltfm_priv(pltfm_host);
|
|
+ u8 start_ptr, end_ptr;
|
|
+
|
|
+ if (esdhc->quirk_tuning_erratum_type1) {
|
|
+ *window_start = 5 * esdhc->div_ratio;
|
|
+ *window_end = 3 * esdhc->div_ratio;
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ esdhc_tuning_window_ptr(host, &start_ptr, &end_ptr);
|
|
+
|
|
/* Reset data lines by setting ESDHCCTL[RSTD] */
|
|
sdhci_reset(host, SDHCI_RESET_DATA);
|
|
/* Write 32'hFFFF_FFFF to IRQSTAT register */
|
|
@@ -966,10 +976,8 @@ static void esdhc_prepare_sw_tuning(stru
|
|
* then program TBPTR[TB_WNDW_END_PTR] = 4 * div_ratio
|
|
* and program TBPTR[TB_WNDW_START_PTR] = 8 * div_ratio.
|
|
*/
|
|
- tbstat_7_0 = val & 0xff;
|
|
- tbstat_15_8 = (val >> 8) & 0xff;
|
|
|
|
- if (abs(tbstat_15_8 - tbstat_7_0) > (4 * esdhc->div_ratio)) {
|
|
+ if (abs(start_ptr - end_ptr) > (4 * esdhc->div_ratio)) {
|
|
*window_start = 8 * esdhc->div_ratio;
|
|
*window_end = 4 * esdhc->div_ratio;
|
|
} else {
|