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mpc85xx: Add 4-bits eSDHC support for MPC8569E-MDS boards

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Thanks to "Errata to MPC8569E PowerQUICC III Integrated Host Processor
Family Reference Manual, Rev. 0" document, which describes all eSDHC
pins, we can add 4-bits eSDHC support for MPC8569E-MDS boards.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Anton Vorontsov 2009-12-16 01:14:31 +03:00 committed by Kumar Gala
parent bc20f9a952
commit c4ca10f1db
2 changed files with 18 additions and 0 deletions
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14
board/freescale/mpc8569mds/mpc8569mds.c
View File

@ -437,6 +437,11 @@ int board_mmc_init(bd_t *bd)
console_assign(stdin, "eserial1");
printf("Switched to UART1 (initial log has been printed to "
"UART0).\n");
clrsetbits_be32(&gur->plppar1, PLPPAR1_UART0_BIT_MASK,
PLPPAR1_ESDHC_4BITS_VAL);
clrsetbits_be32(&gur->plpdir1, PLPDIR1_UART0_BIT_MASK,
PLPDIR1_ESDHC_4BITS_VAL);
bcsr6 |= BCSR6_SD_CARD_4BITS;
} else {
printf("should be disabled.\n");
@ -483,6 +488,15 @@ static void fdt_board_fixup_esdhc(void *blob, bd_t *bd)
break;
}
}
if (hwconfig_subarg_cmp("esdhc", "mode", "4-bits")) {
off = fdt_node_offset_by_compatible(blob, -1, "fsl,esdhc");
if (off < 0) {
printf("WARNING: could not find esdhc node\n");
return;
}
fdt_delprop(blob, off, "sdhci,1-bit-only");
}
}
#else
static inline void fdt_board_fixup_esdhc(void *blob, bd_t *bd) {}

4
include/configs/MPC8569MDS.h
View File

@ -277,6 +277,10 @@ extern unsigned long get_clock_freq(void);
#define PLPDIR1_I2C_BIT_MASK 0x0000000F
#define PLPDIR1_I2C2_VAL 0x0000000F
#define PLPDIR1_ESDHC_VAL 0x00000006
#define PLPPAR1_UART0_BIT_MASK 0x00000fc0
#define PLPPAR1_ESDHC_4BITS_VAL 0x00000a80
#define PLPDIR1_UART0_BIT_MASK 0x00000fc0
#define PLPDIR1_ESDHC_4BITS_VAL 0x00000a80
/*
* General PCI