diff options
| -rw-r--r-- | board/freescale/mpc8569mds/bcsr.h | 3 | ||||
| -rw-r--r-- | board/freescale/mpc8569mds/mpc8569mds.c | 116 | ||||
| -rw-r--r-- | cpu/mpc85xx/speed.c | 4 | ||||
| -rw-r--r-- | include/configs/MPC8569MDS.h | 16 |
4 files changed, 138 insertions, 1 deletions
diff --git a/board/freescale/mpc8569mds/bcsr.h b/board/freescale/mpc8569mds/bcsr.h index c4738d734..2ed57d852 100644 --- a/board/freescale/mpc8569mds/bcsr.h +++ b/board/freescale/mpc8569mds/bcsr.h @@ -33,7 +33,8 @@ #define BCSR6_UPC1_POS_EN 0x40 #define BCSR6_UPC1_ADDR_EN 0x20 #define BCSR6_UPC1_DEV2 0x10 -#define BCSR6_SD_ENABLE 0x04 +#define BCSR6_SD_CARD_1BIT 0x08 +#define BCSR6_SD_CARD_4BITS 0x04 #define BCSR6_TDM2G_EN 0x02 #define BCSR6_UCC7_RMII_EN 0x01 diff --git a/board/freescale/mpc8569mds/mpc8569mds.c b/board/freescale/mpc8569mds/mpc8569mds.c index cc8873117..2d0792216 100644 --- a/board/freescale/mpc8569mds/mpc8569mds.c +++ b/board/freescale/mpc8569mds/mpc8569mds.c @@ -23,6 +23,7 @@ */ #include <common.h> +#include <hwconfig.h> #include <pci.h> #include <asm/processor.h> #include <asm/mmu.h> @@ -35,6 +36,7 @@ #include <ioports.h> #include <libfdt.h> #include <fdt_support.h> +#include <fsl_esdhc.h> #include "bcsr.h" @@ -303,6 +305,119 @@ local_bus_init(void) out_be32(&lbc->lcrr, (u32)in_be32(&lbc->lcrr)| 0x00030000); } +#ifdef CONFIG_FSL_ESDHC + +/* + * Because of an erratum in prototype boards it is impossible to use eSDHC + * without disabling UART0 (which makes it quite easy to 'brick' the board + * by simply issung 'setenv hwconfig esdhc', and not able to interact with + * U-Boot anylonger). + * + * So, but default we assume that the board is a prototype, which is a most + * safe assumption. There is no way to determine board revision from a + * register, so we use hwconfig. + */ + +static int prototype_board(void) +{ + if (hwconfig_subarg("board", "rev", NULL)) + return hwconfig_subarg_cmp("board", "rev", "prototype"); + return 1; +} + +static int esdhc_disables_uart0(void) +{ + return prototype_board() || + hwconfig_subarg_cmp("esdhc", "mode", "4-bits"); +} + +int board_mmc_init(bd_t *bd) +{ + struct ccsr_gur *gur = (struct ccsr_gur *)CONFIG_SYS_MPC85xx_GUTS_ADDR; + u8 *bcsr = (u8 *)CONFIG_SYS_BCSR_BASE; + u8 bcsr6 = BCSR6_SD_CARD_1BIT; + + if (!hwconfig("esdhc")) + return 0; + + printf("Enabling eSDHC...\n" + " For eSDHC to function, I2C2 "); + if (esdhc_disables_uart0()) { + printf("and UART0 should be disabled.\n"); + printf(" Redirecting stderr, stdout and stdin to UART1...\n"); + console_assign(stderr, "eserial1"); + console_assign(stdout, "eserial1"); + console_assign(stdin, "eserial1"); + printf("Switched to UART1 (initial log has been printed to " + "UART0).\n"); + bcsr6 |= BCSR6_SD_CARD_4BITS; + } else { + printf("should be disabled.\n"); + } + + /* Assign I2C2 signals to eSDHC. */ + clrsetbits_be32(&gur->plppar1, PLPPAR1_I2C_BIT_MASK, + PLPPAR1_ESDHC_VAL); + clrsetbits_be32(&gur->plpdir1, PLPDIR1_I2C_BIT_MASK, + PLPDIR1_ESDHC_VAL); + + /* Mux I2C2 (and optionally UART0) signals to eSDHC. */ + setbits_8(&bcsr[6], bcsr6); + + return fsl_esdhc_mmc_init(bd); +} + +static void fdt_board_fixup_esdhc(void *blob, bd_t *bd) +{ + const char *status = "disabled"; + int off; + int err; + + if (!hwconfig("esdhc")) + return; + + if (!esdhc_disables_uart0()) + goto disable_i2c2; + + off = fdt_path_offset(blob, "serial0"); + if (off < 0) { + printf("WARNING: could not find serial0 alias: %s.\n", + fdt_strerror(off)); + goto disable_i2c2; + } + + err = fdt_setprop(blob, off, "status", status, strlen(status) + 1); + if (err) { + printf("WARNING: could not set status for serial0: %s.\n", + fdt_strerror(err)); + return; + } + +disable_i2c2: + off = -1; + while (1) { + const u32 *idx; + int len; + + off = fdt_node_offset_by_compatible(blob, off, "fsl-i2c"); + if (off < 0) + break; + + idx = fdt_getprop(blob, off, "cell-index", &len); + if (!idx || len != sizeof(*idx)) + continue; + + if (*idx == 1) { + fdt_setprop(blob, off, "status", status, + strlen(status) + 1); + break; + } + } +} +#else +static inline void fdt_board_fixup_esdhc(void *blob, bd_t *bd) {} +#endif + #ifdef CONFIG_PCIE1 static struct pci_controller pcie1_hose; #endif /* CONFIG_PCIE1 */ @@ -444,5 +559,6 @@ void ft_board_setup(void *blob, bd_t *bd) #ifdef CONFIG_PCIE1 ft_fsl_pci_setup(blob, "pci1", &pcie1_hose); #endif + fdt_board_fixup_esdhc(blob, bd); } #endif diff --git a/cpu/mpc85xx/speed.c b/cpu/mpc85xx/speed.c index 0244b5c1b..795908240 100644 --- a/cpu/mpc85xx/speed.c +++ b/cpu/mpc85xx/speed.c @@ -240,8 +240,12 @@ int get_clocks (void) gd->i2c2_clk = gd->i2c1_clk; #if defined(CONFIG_FSL_ESDHC) +#ifdef CONFIG_MPC8569 + gd->sdhc_clk = gd->bus_clk; +#else gd->sdhc_clk = gd->bus_clk / 2; #endif +#endif /* defined(CONFIG_FSL_ESDHC) */ #if defined(CONFIG_CPM2) gd->vco_out = 2*sys_info.freqSystemBus; diff --git a/include/configs/MPC8569MDS.h b/include/configs/MPC8569MDS.h index 32e747efb..3d07a5b5d 100644 --- a/include/configs/MPC8569MDS.h +++ b/include/configs/MPC8569MDS.h @@ -70,6 +70,7 @@ extern unsigned long get_clock_freq(void); #define CONFIG_ENABLE_36BIT_PHYS 1 #define CONFIG_BOARD_EARLY_INIT_F 1 /* Call board_pre_init */ +#define CONFIG_HWCONFIG #define CONFIG_SYS_MEMTEST_START 0x00200000 /* memtest works on */ #define CONFIG_SYS_MEMTEST_END 0x00400000 @@ -206,6 +207,7 @@ extern unsigned long get_clock_freq(void); /* Serial Port */ #define CONFIG_CONS_INDEX 1 +#define CONFIG_SERIAL_MULTI 1 #undef CONFIG_SERIAL_SOFTWARE_FIFO #define CONFIG_SYS_NS16550 #define CONFIG_SYS_NS16550_SERIAL @@ -258,8 +260,10 @@ extern unsigned long get_clock_freq(void); #define PLPPAR1_I2C_BIT_MASK 0x0000000F #define PLPPAR1_I2C2_VAL 0x00000000 +#define PLPPAR1_ESDHC_VAL 0x0000000A #define PLPDIR1_I2C_BIT_MASK 0x0000000F #define PLPDIR1_I2C2_VAL 0x0000000F +#define PLPDIR1_ESDHC_VAL 0x00000006 /* * General PCI @@ -450,6 +454,18 @@ extern unsigned long get_clock_freq(void); #undef CONFIG_WATCHDOG /* watchdog disabled */ +#define CONFIG_MMC 1 + +#ifdef CONFIG_MMC +#define CONFIG_FSL_ESDHC +#define CONFIG_SYS_FSL_ESDHC_ADDR CONFIG_SYS_MPC85xx_ESDHC_ADDR +#define CONFIG_CMD_MMC +#define CONFIG_GENERIC_MMC +#define CONFIG_CMD_EXT2 +#define CONFIG_CMD_FAT +#define CONFIG_DOS_PARTITION +#endif + /* * Miscellaneous configurable options */ |