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| author | Heiko Schocher <hs@denx.de> | 2009-02-24 11:30:34 +0100 |
|---|---|---|
| committer | Kim Phillips <kim.phillips@freescale.com> | 2009-03-05 18:21:17 -0600 |
| commit | 19f0e93041dbfe22f8d39b98e4f7f9ea87b77803 (patch) | |
| tree | daee9618bf97254766a44843f66bd797732b6d4f /board/keymile/kmeter1 | |
| parent | db1d72afd77287bc8577210f3f71ab249dcf146f (diff) | |
| download | u-boot-imx-19f0e93041dbfe22f8d39b98e4f7f9ea87b77803.zip u-boot-imx-19f0e93041dbfe22f8d39b98e4f7f9ea87b77803.tar.gz u-boot-imx-19f0e93041dbfe22f8d39b98e4f7f9ea87b77803.tar.bz2 | |
83xx, kmeter1: add I2C, dtt, eeprom support
This patch adds I2C support for the Keymile kmeter1 board.
It uses the First I2C Controller from the CPU, for
accessing 4 temperature sensors, an eeprom with IVM data
and the booteeprom over a pca9547 mux.
Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Diffstat (limited to 'board/keymile/kmeter1')
| -rw-r--r-- | board/keymile/kmeter1/kmeter1.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/board/keymile/kmeter1/kmeter1.c b/board/keymile/kmeter1/kmeter1.c index f04a57a..a3c58ae 100644 --- a/board/keymile/kmeter1/kmeter1.c +++ b/board/keymile/kmeter1/kmeter1.c @@ -59,6 +59,23 @@ const qe_iop_conf_t qe_iop_conf_tab[] = { {0, 0, 0, 0, QE_IOP_TAB_END}, }; +static int board_init_i2c_busses (void) +{ + I2C_MUX_DEVICE *dev = NULL; + uchar *buf; + + /* Set up the Bus for the DTTs */ + buf = (unsigned char *) getenv ("dtt_bus"); + if (buf != NULL) + dev = i2c_mux_ident_muxstring (buf); + if (dev == NULL) { + printf ("Error couldn't add Bus for DTT\n"); + printf ("please setup dtt_bus to where your\n"); + printf ("DTT is found.\n"); + } + return 0; +} + int board_early_init_r (void) { void *reg = (void *)(CONFIG_SYS_IMMR + 0x14a8); @@ -80,6 +97,13 @@ int board_early_init_r (void) return 0; } +int misc_init_r (void) +{ + /* add board specific i2c busses */ + board_init_i2c_busses (); + return 0; +} + int fixed_sdram(void) { volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; @@ -156,3 +180,12 @@ void ft_board_setup (void *blob, bd_t *bd) ft_cpu_setup (blob, bd); } #endif + +#if defined(CONFIG_HUSH_INIT_VAR) +extern int ivm_read_eeprom (void); +int hush_init_var (void) +{ + ivm_read_eeprom (); + return 0; +} +#endif |