[U-Boot] [PATCH v3 2/2] fsl_esdhc: Remove cache snooping for i.MX

Benoît Thébaudeau Mon, 13 Aug 2012 10:23:20 -0700

The cache snooping feature of Freescale's eSDHC IP is not available on i.MX, so
disable it globally for this architecture. This avoids setting no_snoop for all
i.MX boards, and it prevents setting a reserved bit of a reserved register if
fsl_esdhc_mmc_init() is used on i.MX, like in
arch/arm/cpu/armv7/imx-common/cpu.c/cpu_mmc_init().


Since no_snoop was only used on i.MX, get rid of it BTW.

Signed-off-by: Benoît Thébaudeau <benoit.thebaud...@advansee.com>
Cc: Andy Fleming <aflem...@gmail.com>
Cc: Stefano Babic <sba...@denx.de>
Cc: Kim Phillips <kim.phill...@freescale.com>
---
Changes for v2:
 - Get rid of no_snoop.
Changes for v3:
 - Rename ARCH_IMX to ARCH_MXC to emphasize the difference between mxc and mxs.

 .../board/efikamx/efikamx.c                        |    4 ++--
 .../board/esg/ima3-mx53/ima3-mx53.c                |    2 +-
 .../board/freescale/mx51evk/mx51evk.c              |    4 ++--
 .../board/freescale/mx53ard/mx53ard.c              |    4 ++--
 .../board/freescale/mx53evk/mx53evk.c              |    4 ++--
 .../board/freescale/mx53loco/mx53loco.c            |    4 ++--
 .../board/freescale/mx53smd/mx53smd.c              |    2 +-
 .../board/freescale/mx6qarm2/mx6qarm2.c            |    4 ++--
 .../board/freescale/mx6qsabrelite/mx6qsabrelite.c  |    4 ++--
 .../board/ttcontrol/vision2/vision2.c              |    2 +-
 .../drivers/mmc/fsl_esdhc.c                        |    5 +++--
 .../include/fsl_esdhc.h                            |    1 -
 12 files changed, 20 insertions(+), 20 deletions(-)

diff --git u-boot-4d3c95f.orig/board/efikamx/efikamx.c 
u-boot-4d3c95f/board/efikamx/efikamx.c
index e88b2ed..1e643d7 100644
--- u-boot-4d3c95f.orig/board/efikamx/efikamx.c
+++ u-boot-4d3c95f/board/efikamx/efikamx.c
@@ -302,8 +302,8 @@ static inline void power_init(void) { }
  */
 #ifdef CONFIG_FSL_ESDHC
 struct fsl_esdhc_cfg esdhc_cfg[2] = {
-       {MMC_SDHC1_BASE_ADDR, 1},
-       {MMC_SDHC2_BASE_ADDR, 1},
+       {MMC_SDHC1_BASE_ADDR},
+       {MMC_SDHC2_BASE_ADDR},
 };
 
 static inline uint32_t efika_mmc_cd(void)
diff --git u-boot-4d3c95f.orig/board/esg/ima3-mx53/ima3-mx53.c 
u-boot-4d3c95f/board/esg/ima3-mx53/ima3-mx53.c
index 9ecf31d..e947330 100644
--- u-boot-4d3c95f.orig/board/esg/ima3-mx53/ima3-mx53.c
+++ u-boot-4d3c95f/board/esg/ima3-mx53/ima3-mx53.c
@@ -172,7 +172,7 @@ static void setup_iomux_fec(void)
 }
 
 #ifdef CONFIG_FSL_ESDHC
-struct fsl_esdhc_cfg esdhc_cfg = { MMC_SDHC1_BASE_ADDR, 1 };
+struct fsl_esdhc_cfg esdhc_cfg = { MMC_SDHC1_BASE_ADDR };
 
 int board_mmc_getcd(struct mmc *mmc)
 {
diff --git u-boot-4d3c95f.orig/board/freescale/mx51evk/mx51evk.c 
u-boot-4d3c95f/board/freescale/mx51evk/mx51evk.c
index 514a7ac..7e50688 100644
--- u-boot-4d3c95f.orig/board/freescale/mx51evk/mx51evk.c
+++ u-boot-4d3c95f/board/freescale/mx51evk/mx51evk.c
@@ -47,8 +47,8 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #ifdef CONFIG_FSL_ESDHC
 struct fsl_esdhc_cfg esdhc_cfg[2] = {
-       {MMC_SDHC1_BASE_ADDR, 1},
-       {MMC_SDHC2_BASE_ADDR, 1},
+       {MMC_SDHC1_BASE_ADDR},
+       {MMC_SDHC2_BASE_ADDR},
 };
 #endif
 
diff --git u-boot-4d3c95f.orig/board/freescale/mx53ard/mx53ard.c 
u-boot-4d3c95f/board/freescale/mx53ard/mx53ard.c
index 2d21584..6fea7e5 100644
--- u-boot-4d3c95f.orig/board/freescale/mx53ard/mx53ard.c
+++ u-boot-4d3c95f/board/freescale/mx53ard/mx53ard.c
@@ -79,8 +79,8 @@ static void setup_iomux_uart(void)
 
 #ifdef CONFIG_FSL_ESDHC
 struct fsl_esdhc_cfg esdhc_cfg[2] = {
-       {MMC_SDHC1_BASE_ADDR, 1 },
-       {MMC_SDHC2_BASE_ADDR, 1 },
+       {MMC_SDHC1_BASE_ADDR},
+       {MMC_SDHC2_BASE_ADDR},
 };
 
 int board_mmc_getcd(struct mmc *mmc)
diff --git u-boot-4d3c95f.orig/board/freescale/mx53evk/mx53evk.c 
u-boot-4d3c95f/board/freescale/mx53evk/mx53evk.c
index 8a6e31d..2a90a4c 100644
--- u-boot-4d3c95f.orig/board/freescale/mx53evk/mx53evk.c
+++ u-boot-4d3c95f/board/freescale/mx53evk/mx53evk.c
@@ -204,8 +204,8 @@ static void setup_iomux_fec(void)
 
 #ifdef CONFIG_FSL_ESDHC
 struct fsl_esdhc_cfg esdhc_cfg[2] = {
-       {MMC_SDHC1_BASE_ADDR, 1},
-       {MMC_SDHC3_BASE_ADDR, 1},
+       {MMC_SDHC1_BASE_ADDR},
+       {MMC_SDHC3_BASE_ADDR},
 };
 
 int board_mmc_getcd(struct mmc *mmc)
diff --git u-boot-4d3c95f.orig/board/freescale/mx53loco/mx53loco.c 
u-boot-4d3c95f/board/freescale/mx53loco/mx53loco.c
index cbdcfad..3195b22 100644
--- u-boot-4d3c95f.orig/board/freescale/mx53loco/mx53loco.c
+++ u-boot-4d3c95f/board/freescale/mx53loco/mx53loco.c
@@ -165,8 +165,8 @@ static void setup_iomux_fec(void)
 
 #ifdef CONFIG_FSL_ESDHC
 struct fsl_esdhc_cfg esdhc_cfg[2] = {
-       {MMC_SDHC1_BASE_ADDR, 1},
-       {MMC_SDHC3_BASE_ADDR, 1},
+       {MMC_SDHC1_BASE_ADDR},
+       {MMC_SDHC3_BASE_ADDR},
 };
 
 int board_mmc_getcd(struct mmc *mmc)
diff --git u-boot-4d3c95f.orig/board/freescale/mx53smd/mx53smd.c 
u-boot-4d3c95f/board/freescale/mx53smd/mx53smd.c
index c237980..b816377 100644
--- u-boot-4d3c95f.orig/board/freescale/mx53smd/mx53smd.c
+++ u-boot-4d3c95f/board/freescale/mx53smd/mx53smd.c
@@ -129,7 +129,7 @@ static void setup_iomux_fec(void)
 
 #ifdef CONFIG_FSL_ESDHC
 struct fsl_esdhc_cfg esdhc_cfg[1] = {
-       {MMC_SDHC1_BASE_ADDR, 1},
+       {MMC_SDHC1_BASE_ADDR},
 };
 
 int board_mmc_getcd(struct mmc *mmc)
diff --git u-boot-4d3c95f.orig/board/freescale/mx6qarm2/mx6qarm2.c 
u-boot-4d3c95f/board/freescale/mx6qarm2/mx6qarm2.c
index 340c4c4..69f5781 100644
--- u-boot-4d3c95f.orig/board/freescale/mx6qarm2/mx6qarm2.c
+++ u-boot-4d3c95f/board/freescale/mx6qarm2/mx6qarm2.c
@@ -116,8 +116,8 @@ static void setup_iomux_enet(void)
 
 #ifdef CONFIG_FSL_ESDHC
 struct fsl_esdhc_cfg usdhc_cfg[2] = {
-       {USDHC3_BASE_ADDR, 1},
-       {USDHC4_BASE_ADDR, 1},
+       {USDHC3_BASE_ADDR},
+       {USDHC4_BASE_ADDR},
 };
 
 int board_mmc_getcd(struct mmc *mmc)
diff --git u-boot-4d3c95f.orig/board/freescale/mx6qsabrelite/mx6qsabrelite.c 
u-boot-4d3c95f/board/freescale/mx6qsabrelite/mx6qsabrelite.c
index 01e5083..c40db59 100644
--- u-boot-4d3c95f.orig/board/freescale/mx6qsabrelite/mx6qsabrelite.c
+++ u-boot-4d3c95f/board/freescale/mx6qsabrelite/mx6qsabrelite.c
@@ -237,8 +237,8 @@ int board_ehci_hcd_init(int port)
 
 #ifdef CONFIG_FSL_ESDHC
 struct fsl_esdhc_cfg usdhc_cfg[2] = {
-       {USDHC3_BASE_ADDR, 1},
-       {USDHC4_BASE_ADDR, 1},
+       {USDHC3_BASE_ADDR},
+       {USDHC4_BASE_ADDR},
 };
 
 int board_mmc_getcd(struct mmc *mmc)
diff --git u-boot-4d3c95f.orig/board/ttcontrol/vision2/vision2.c 
u-boot-4d3c95f/board/ttcontrol/vision2/vision2.c
index d68bef7..d4ca510 100644
--- u-boot-4d3c95f.orig/board/ttcontrol/vision2/vision2.c
+++ u-boot-4d3c95f/board/ttcontrol/vision2/vision2.c
@@ -521,7 +521,7 @@ static void setup_fec(void)
 }
 
 struct fsl_esdhc_cfg esdhc_cfg[1] = {
-       {MMC_SDHC1_BASE_ADDR, 1},
+       {MMC_SDHC1_BASE_ADDR},
 };
 
 int get_mmc_getcd(u8 *cd, struct mmc *mmc)
diff --git u-boot-4d3c95f.orig/drivers/mmc/fsl_esdhc.c 
u-boot-4d3c95f/drivers/mmc/fsl_esdhc.c
index b6c969d..3f8d30d 100644
--- u-boot-4d3c95f.orig/drivers/mmc/fsl_esdhc.c
+++ u-boot-4d3c95f/drivers/mmc/fsl_esdhc.c
@@ -479,9 +479,10 @@ static int esdhc_init(struct mmc *mmc)
        while ((esdhc_read32(&regs->sysctl) & SYSCTL_RSTA) && --timeout)
                udelay(1000);
 
+#ifndef ARCH_MXC
        /* Enable cache snooping */
-       if (cfg && !cfg->no_snoop)
-               esdhc_write32(&regs->scr, 0x00000040);
+       esdhc_write32(&regs->scr, 0x00000040);
+#endif
 
        esdhc_write32(&regs->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
 
diff --git u-boot-4d3c95f.orig/include/fsl_esdhc.h 
u-boot-4d3c95f/include/fsl_esdhc.h
index 0e26558..4e321e7 100644
--- u-boot-4d3c95f.orig/include/fsl_esdhc.h
+++ u-boot-4d3c95f/include/fsl_esdhc.h
@@ -167,7 +167,6 @@
 
 struct fsl_esdhc_cfg {
        u32     esdhc_base;
-       u32     no_snoop;
 };
 
 /* Select the correct accessors depending on endianess */
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[U-Boot] [PATCH v3 2/2] fsl_esdhc: Remove cache snooping for i.MX

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