[U-Boot] [PATCH 02/20] armv8/ls2085ardb: add hwconfig setting for eSDHC

Prabhakar Kushwaha
2015-05-18T07:08:39Z

From: Yangbo Lu <yangbo.lu@freescale.com>

Add hwconfig setting for eSDHC since it shares some pins with other
IP block.

Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
---
board/freescale/ls2085ardb/ls2085ardb.c | 36 +++++++++++++++++++++++++++++++++
include/configs/ls2085ardb.h | 2 ++
2 files changed, 38 insertions(+)

diff --git a/board/freescale/ls2085ardb/ls2085ardb.c b/board/freescale/ls2085ardb/ls2085ardb.c
index 6cb7b13..e0a8a41 100644
--- a/board/freescale/ls2085ardb/ls2085ardb.c
+++ b/board/freescale/ls2085ardb/ls2085ardb.c
@@ -10,6 +10,7 @@
#include <fsl_ifc.h>
#include <fsl_ddr.h>
#include <asm/io.h>
+#include <hwconfig.h>
#include <fdt_support.h>
#include <libfdt.h>
#include <fsl_debug_server.h>
@@ -21,8 +22,15 @@
#include "../common/qixis.h"
#include "ls2085ardb_qixis.h"

+#define PIN_MUX_SEL_SDHC 0x00
+
+#define SET_SDHC_MUX_SEL(reg, value) ((reg & 0xf0) | value)
DECLARE_GLOBAL_DATA_PTR;

+enum {
+ MUX_TYPE_SDHC,
+};
+
unsigned long long get_qixis_addr(void)
{
unsigned long long addr;
@@ -129,6 +137,34 @@ int board_early_init_f(void)
return 0;
}

+int config_board_mux(int ctrl_type)
+{
+ u8 reg5;
+
+ reg5 = QIXIS_READ(brdcfg[5]);
+
+ switch (ctrl_type) {
+ case MUX_TYPE_SDHC:
+ reg5 = SET_SDHC_MUX_SEL(reg5, PIN_MUX_SEL_SDHC);
+ break;
+ default:
+ printf("Wrong mux interface type\n");
+ return -1;
+ }
+
+ QIXIS_WRITE(brdcfg[5], reg5);
+
+ return 0;
+}
+
+int misc_init_r(void)
+{
+ if (hwconfig("sdhc"))
+ config_board_mux(MUX_TYPE_SDHC);
+
+ return 0;
+}
+
void detail_board_ddr_info(void)
{
puts("\nDDR ");
diff --git a/include/configs/ls2085ardb.h b/include/configs/ls2085ardb.h
index 62f13f9..29c934e 100644
--- a/include/configs/ls2085ardb.h
+++ b/include/configs/ls2085ardb.h
@@ -288,6 +288,8 @@ unsigned long get_board_sys_clk(void);
#define CONFIG_DOS_PARTITION
#endif

+#define CONFIG_MISC_INIT_R
+
/* Initial environment variables */
#undef CONFIG_EXTRA_ENV_SETTINGS
#define CONFIG_EXTRA_ENV_SETTINGS \
--
1.9.1