diff options
| author | Andreas Müller <schnitzeltony@gmx.de> | 2012-01-04 15:26:25 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-01-16 08:40:13 +0100 |
| commit | 137703b811502dfea364650fb3e17f20b4c21333 (patch) | |
| tree | 40d0808c67ee5cbf308e481449dc78effbbffcfc /board/overo/overo.c | |
| parent | 761ca31e47e483a0c0c66894ead1a2d0db37b314 (diff) | |
| download | u-boot-imx-137703b811502dfea364650fb3e17f20b4c21333.zip u-boot-imx-137703b811502dfea364650fb3e17f20b4c21333.tar.gz u-boot-imx-137703b811502dfea364650fb3e17f20b4c21333.tar.bz2 | |
overo: add SPL support
* implementation based on ti beagleboard/omap3evm
* timing data and i2c workaround for revision 0 boards taken from x-loader
* run-tested with overo revision 0 and 1 / boot from NAND and SDcard
* run-tested with x-loader
Signed-off-by: Andreas Müller <schnitzeltony@gmx.de>
Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'board/overo/overo.c')
| -rw-r--r-- | board/overo/overo.c | 65 |
1 files changed, 64 insertions, 1 deletions
diff --git a/board/overo/overo.c b/board/overo/overo.c index 4a20c7f..7b4064c 100644 --- a/board/overo/overo.c +++ b/board/overo/overo.c @@ -31,6 +31,7 @@ #include <common.h> #include <netdev.h> #include <twl4030.h> +#include <linux/mtd/nand.h> #include <asm/io.h> #include <asm/arch/mmc_host_def.h> #include <asm/arch/mux.h> @@ -100,6 +101,16 @@ int board_init(void) } /* + * Routine: omap_rev_string + * Description: For SPL builds output board rev + */ +#ifdef CONFIG_SPL_BUILD +void omap_rev_string(void) +{ +} +#endif + +/* * Routine: get_board_revision * Description: Returns the board revision */ @@ -107,6 +118,20 @@ int get_board_revision(void) { int revision; +#ifdef CONFIG_DRIVER_OMAP34XX_I2C + unsigned char data; + + /* board revisions <= R2410 connect 4030 irq_1 to gpio112 */ + /* these boards should return a revision number of 0 */ + /* the code below forces a 4030 RTC irq to ensure that gpio112 is low */ + i2c_set_bus_num(TWL4030_I2C_BUS); + data = 0x01; + i2c_write(0x4B, 0x29, 1, &data, 1); + data = 0x0c; + i2c_write(0x4B, 0x2b, 1, &data, 1); + i2c_read(0x4B, 0x2a, 1, &data, 1); +#endif + if (!gpio_request(112, "") && !gpio_request(113, "") && !gpio_request(115, "")) { @@ -126,6 +151,44 @@ int get_board_revision(void) return revision; } +#ifdef CONFIG_SPL_BUILD +/* + * Routine: get_board_mem_timings + * Description: If we use SPL then there is no x-loader nor config header + * so we have to setup the DDR timings ourself on both banks. + */ +void get_board_mem_timings(u32 *mcfg, u32 *ctrla, u32 *ctrlb, u32 *rfr_ctrl, + u32 *mr) +{ + *mr = MICRON_V_MR_165; + switch (get_board_revision()) { + case REVISION_0: /* Micron 1286MB/256MB, 1/2 banks of 128MB */ + *mcfg = MICRON_V_MCFG_165(128 << 20); + *ctrla = MICRON_V_ACTIMA_165; + *ctrlb = MICRON_V_ACTIMB_165; + *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; + break; + case REVISION_1: /* Micron 256MB/512MB, 1/2 banks of 256MB */ + *mcfg = MICRON_V_MCFG_165(256 << 20); + *ctrla = MICRON_V_ACTIMA_165; + *ctrlb = MICRON_V_ACTIMB_165; + *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; + break; + case REVISION_2: /* Hynix 256MB/512MB, 1/2 banks of 256MB */ + *mcfg = HYNIX_V_MCFG_165(256 << 20); + *ctrla = HYNIX_V_ACTIMA_165; + *ctrlb = HYNIX_V_ACTIMB_165; + *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; + break; + default: + *mcfg = MICRON_V_MCFG_165(128 << 20); + *ctrla = MICRON_V_ACTIMA_165; + *ctrlb = MICRON_V_ACTIMB_165; + *rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; + } +} +#endif + /* * Routine: get_sdio2_config * Description: Return information about the wifi module connection @@ -337,7 +400,7 @@ int board_eth_init(bd_t *bis) return rc; } -#ifdef CONFIG_GENERIC_MMC +#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) int board_mmc_init(bd_t *bis) { omap_mmc_init(0); |