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| author | Fabio Estevam <fabio.estevam@freescale.com> | 2012-05-08 03:40:49 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-05-15 08:31:34 +0200 |
| commit | 54cd1dee8f9537c2e3d5bfe2029bf31b2b1cf2f3 (patch) | |
| tree | deb53e4d51a34d3451268a28cc23727b3bb025ff | |
| parent | 768a05971030c0c57e05063f20449b8d4138293e (diff) | |
| download | u-boot-imx-54cd1dee8f9537c2e3d5bfe2029bf31b2b1cf2f3.zip u-boot-imx-54cd1dee8f9537c2e3d5bfe2029bf31b2b1cf2f3.tar.gz u-boot-imx-54cd1dee8f9537c2e3d5bfe2029bf31b2b1cf2f3.tar.bz2 | |
mx53loco: Add CONFIG_REVISION_TAG
FSL 2.6.35 kernel assumes that the bootloader passes the CONFIG_REVISION_TAG information.
The kernel uses this data to distinguish between Dialog versus mc34708 based boards,
and also to distinguish between revA and revB of the mc34708 based boards.
Suggested-by: Yu Li <yk@magniel.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
| -rw-r--r-- | arch/arm/include/asm/arch-mx5/imx-regs.h | 5 | ||||
| -rw-r--r-- | board/freescale/mx53loco/mx53loco.c | 12 | ||||
| -rw-r--r-- | include/configs/mx53loco.h | 1 |
3 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-mx5/imx-regs.h b/arch/arm/include/asm/arch-mx5/imx-regs.h index a4245a3..cef4190 100644 --- a/arch/arm/include/asm/arch-mx5/imx-regs.h +++ b/arch/arm/include/asm/arch-mx5/imx-regs.h @@ -491,6 +491,11 @@ struct iim_regs { } bank[4]; }; +struct fuse_bank0_regs { + u32 fuse0_23[24]; + u32 gp[8]; +}; + struct fuse_bank1_regs { u32 fuse0_8[9]; u32 mac_addr[6]; diff --git a/board/freescale/mx53loco/mx53loco.c b/board/freescale/mx53loco/mx53loco.c index a49b00a..fb13895 100644 --- a/board/freescale/mx53loco/mx53loco.c +++ b/board/freescale/mx53loco/mx53loco.c @@ -62,6 +62,18 @@ void dram_init_banksize(void) gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE; } +u32 get_board_rev(void) +{ + struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE; + struct fuse_bank *bank = &iim->bank[0]; + struct fuse_bank0_regs *fuse = + (struct fuse_bank0_regs *)bank->fuse_regs; + + int rev = readl(&fuse->gp[6]); + + return (get_cpu_rev() & ~(0xF << 8)) | (rev & 0xF) << 8; +} + static void setup_iomux_uart(void) { /* UART1 RXD */ diff --git a/include/configs/mx53loco.h b/include/configs/mx53loco.h index 87f6ed1..eab0e27 100644 --- a/include/configs/mx53loco.h +++ b/include/configs/mx53loco.h @@ -43,6 +43,7 @@ #define CONFIG_BOARD_EARLY_INIT_F #define CONFIG_BOARD_LATE_INIT #define CONFIG_MXC_GPIO +#define CONFIG_REVISION_TAG #define CONFIG_MXC_UART #define CONFIG_MXC_UART_BASE UART1_BASE |