[U-Boot] [PATCH] fsl_esdhc: Deal with watermark level register related changes
Kumar Gala
galak at kernel.crashing.org
Mon Mar 7 05:14:57 CET 2011
From: Priyanka Jain <Priyanka.Jain at freescale.com>
P1010 and P1014 has v2.3 version of FSL eSDHC controller in which watermark
level register description has been changed:
9-15 bits represent WR_WML[0:6], Max value = 128 represented by 0x00
25-31 bits represent RD_WML[0:6], Max value = 128 represented by 0x00
Signed-off-by: Priyanka Jain <Priyanka.Jain at freescale.com>
Signed-off-by: Poonam Aggrwal <Poonam.Aggrwal at freescale.com>
Signed-off-by: Kumar Gala <galak at kernel.crashing.org>
---
arch/powerpc/include/asm/config_mpc85xx.h | 2 ++
drivers/mmc/fsl_esdhc.c | 8 ++++----
include/fsl_esdhc.h | 15 ++++++++++++++-
3 files changed, 20 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/include/asm/config_mpc85xx.h b/arch/powerpc/include/asm/config_mpc85xx.h
index 0b5f78a..1f4dee4 100644
--- a/arch/powerpc/include/asm/config_mpc85xx.h
+++ b/arch/powerpc/include/asm/config_mpc85xx.h
@@ -88,6 +88,7 @@
#elif defined(CONFIG_P1010)
#define CONFIG_MAX_CPUS 1
+#define CONFIG_FSL_SDHC_V2_3
#define CONFIG_SYS_FSL_NUM_LAWS 12
#define CONFIG_TSECV2
#define CONFIG_SYS_FSL_SEC_COMPAT 4
@@ -131,6 +132,7 @@
#elif defined(CONFIG_P1014)
#define CONFIG_MAX_CPUS 1
+#define CONFIG_FSL_SDHC_V2_3
#define CONFIG_SYS_FSL_NUM_LAWS 12
#define CONFIG_TSECV2
#define CONFIG_SYS_FSL_SEC_COMPAT 4
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index 0962ac4..4f1b515 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -178,14 +178,14 @@ static int esdhc_setup_data(struct mmc *mmc, struct mmc_data *data)
wml_value = data->blocksize/4;
if (data->flags & MMC_DATA_READ) {
- if (wml_value > 0x10)
- wml_value = 0x10;
+ if (wml_value > WML_RD_WML_MAX)
+ wml_value = WML_RD_WML_MAX_VAL;
esdhc_clrsetbits32(®s->wml, WML_RD_WML_MASK, wml_value);
esdhc_write32(®s->dsaddr, (u32)data->dest);
} else {
- if (wml_value > 0x80)
- wml_value = 0x80;
+ if (wml_value > WML_WR_WML_MAX)
+ wml_value = WML_WR_WML_MAX_VAL;
if ((esdhc_read32(®s->prsstat) & PRSSTAT_WPSPL) == 0) {
printf("\nThe SD card is locked. Can not write to a locked card.\n\n");
return TIMEOUT;
diff --git a/include/fsl_esdhc.h b/include/fsl_esdhc.h
index 477bbd7..8418bf7 100644
--- a/include/fsl_esdhc.h
+++ b/include/fsl_esdhc.h
@@ -2,7 +2,7 @@
* FSL SD/MMC Defines
*-------------------------------------------------------------------
*
- * Copyright 2007-2008,2010 Freescale Semiconductor, Inc
+ * Copyright 2007-2008,2010-2011 Freescale Semiconductor, Inc
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
@@ -135,8 +135,21 @@
#define WML 0x2e044
#define WML_WRITE 0x00010000
+#ifdef CONFIG_FSL_SDHC_V2_3
+#define WML_RD_WML_MAX 0x80
+#define WML_WR_WML_MAX 0x80
+#define WML_RD_WML_MAX_VAL 0x0
+#define WML_WR_WML_MAX_VAL 0x0
+#define WML_RD_WML_MASK 0x7f
+#define WML_WR_WML_MASK 0x7f0000
+#else
+#define WML_RD_WML_MAX 0x10
+#define WML_WR_WML_MAX 0x80
+#define WML_RD_WML_MAX_VAL 0x10
+#define WML_WR_WML_MAX_VAL 0x80
#define WML_RD_WML_MASK 0xff
#define WML_WR_WML_MASK 0xff0000
+#endif
#define BLKATTR 0x2e004
#define BLKATTR_CNT(x) ((x & 0xffff) << 16)
--
1.7.2.3
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