[U-Boot] [PATCH 4/8] mpc83xx: MPC837XEMDS: Fixup eSDHC nodes in device tree

Anton Vorontsov
2009-06-09T20:25:31Z

fdt_fixup_esdhc() will either disable or enable eSDHC nodes, and
also will fixup clock-frequency property.

Plus, since DR USB and eSDHC are mutually exclusive, we should
only configure the eSDHC if asked through hwconfig.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
---
board/freescale/mpc837xemds/mpc837xemds.c | 37 ++++++++++++++++++----------
include/configs/MPC837XEMDS.h | 1 +
2 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/board/freescale/mpc837xemds/mpc837xemds.c b/board/freescale/mpc837xemds/mpc837xemds.c
index 062d762..5d3cea1 100644
--- a/board/freescale/mpc837xemds/mpc837xemds.c
+++ b/board/freescale/mpc837xemds/mpc837xemds.c
@@ -11,6 +11,7 @@
*/

#include <common.h>
+#include <hwconfig.h>
#include <i2c.h>
#include <asm/io.h>
#include <asm/fsl_serdes.h>
@@ -18,12 +19,12 @@
#include <tsec.h>
#include <libfdt.h>
#include <fdt_support.h>
+#include <fsl_esdhc.h>
#include "pci.h"
#include "../common/pq-mds-pib.h"

int board_early_init_f(void)
{
- struct immap __iomem *im = (struct immap __iomem *)CONFIG_SYS_IMMR;
u8 *bcsr = (u8 *)CONFIG_SYS_BCSR;

/* Enable flash write */
@@ -31,18 +32,6 @@ int board_early_init_f(void)
/* Clear all of the interrupt of BCSR */
bcsr[0xe] = 0xff;

-#ifdef CONFIG_MMC
- /* Set SPI_SD, SER_SD, and IRQ4_WP so that SD signals go through */
- bcsr[0xc] |= 0x4c;
-
- /* Set proper bits in SICR to allow SD signals through */
- clrsetbits_be32(&im->sysconf.sicrl, SICRL_USB_B, SICRL_USB_B_SD);
-
- clrsetbits_be32(&im->sysconf.sicrh, (SICRH_GPIO2_E | SICRH_SPI),
- (SICRH_GPIO2_E_SD | SICRH_SPI_SD));
-
-#endif
-
#ifdef CONFIG_FSL_SERDES
immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
u32 spridr = in_be32(&immr->sysconf.spridr);
@@ -72,6 +61,27 @@ int board_early_init_f(void)
return 0;
}

+#ifdef CONFIG_FSL_ESDHC
+int board_mmc_init(bd_t *bd)
+{
+ struct immap __iomem *im = (struct immap __iomem *)CONFIG_SYS_IMMR;
+ u8 *bcsr = (u8 *)CONFIG_SYS_BCSR;
+
+ if (!hwconfig("esdhc"))
+ return 0;
+
+ /* Set SPI_SD, SER_SD, and IRQ4_WP so that SD signals go through */
+ bcsr[0xc] |= 0x4c;
+
+ /* Set proper bits in SICR to allow SD signals through */
+ clrsetbits_be32(&im->sysconf.sicrl, SICRL_USB_B, SICRL_USB_B_SD);
+ clrsetbits_be32(&im->sysconf.sicrh, SICRH_GPIO2_E | SICRH_SPI,
+ SICRH_GPIO2_E_SD | SICRH_SPI_SD);
+
+ return fsl_esdhc_mmc_init(bd);
+}
+#endif
+
#if defined(CONFIG_TSEC1) || defined(CONFIG_TSEC2)
int board_eth_init(bd_t *bd)
{
@@ -322,6 +332,7 @@ void ft_board_setup(void *blob, bd_t *bd)
ft_cpu_setup(blob, bd);
ft_tsec_fixup(blob, bd);
fdt_fixup_dr_usb(blob, bd);
+ fdt_fixup_esdhc(blob, bd);
#ifdef CONFIG_PCI
ft_pci_setup(blob, bd);
if (board_pci_host_broken())
diff --git a/include/configs/MPC837XEMDS.h b/include/configs/MPC837XEMDS.h
index a62d805..9413b29 100644
--- a/include/configs/MPC837XEMDS.h
+++ b/include/configs/MPC837XEMDS.h
@@ -111,6 +111,7 @@

#define CONFIG_BOARD_EARLY_INIT_F /* call board_pre_init */
#define CONFIG_BOARD_EARLY_INIT_R
+#define CONFIG_HWCONFIG

/*
* IMMR new address
--
1.6.3.1