From: Bob Dunlop <bob.dun...@xyzzy.org.uk> Currently the input frequency of the SoC is hardcoded in the SoC specific da850.c file to 24 MHz. Since the SoC accepts input frequencies in a wide range from 12 to 50 MHz, boards with different oscillator/crystal frequencies may be built.
This patch allows setting a different input frequency in the board specific files to support boards with oscillator/crystal frequencies other than 24 MHz. Signed-off-by: Bob Dunlop <bob.dun...@xyzzy.org.uk> Signed-off-by: Christian Riesch <christian.rie...@omicron.at> --- Hi, in private email Bob Dunlop suggested to pass a pointer to a small structure instead of the frequency value to allow future expansions, e.g., for the OPP list. Therefore I submit his patch as V2. Christian arch/arm/mach-davinci/board-da850-evm.c | 2 +- arch/arm/mach-davinci/board-mityomapl138.c | 2 +- arch/arm/mach-davinci/board-omapl138-hawk.c | 2 +- arch/arm/mach-davinci/da850.c | 5 ++++- arch/arm/mach-davinci/include/mach/da8xx.h | 6 +++++- 5 files changed, 12 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c index a7b41bf..231ff87 100644 --- a/arch/arm/mach-davinci/board-da850-evm.c +++ b/arch/arm/mach-davinci/board-da850-evm.c @@ -1252,7 +1252,7 @@ console_initcall(da850_evm_console_init); static void __init da850_evm_map_io(void) { - da850_init(); + da850_init(NULL); } MACHINE_START(DAVINCI_DA850_EVM, "DaVinci DA850/OMAP-L138/AM18x EVM") diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c index 606a6f2..362770c 100644 --- a/arch/arm/mach-davinci/board-mityomapl138.c +++ b/arch/arm/mach-davinci/board-mityomapl138.c @@ -561,7 +561,7 @@ console_initcall(mityomapl138_console_init); static void __init mityomapl138_map_io(void) { - da850_init(); + da850_init(NULL); } MACHINE_START(MITYOMAPL138, "MityDSP-L138/MityARM-1808") diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c index 67c38d0..c43a6c3 100644 --- a/arch/arm/mach-davinci/board-omapl138-hawk.c +++ b/arch/arm/mach-davinci/board-omapl138-hawk.c @@ -334,7 +334,7 @@ console_initcall(omapl138_hawk_console_init); static void __init omapl138_hawk_map_io(void) { - da850_init(); + da850_init(NULL); } MACHINE_START(OMAPL138_HAWKBOARD, "AM18x/OMAP-L138 Hawkboard") diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c index 133aac4..ebd0603 100644 --- a/arch/arm/mach-davinci/da850.c +++ b/arch/arm/mach-davinci/da850.c @@ -1104,10 +1104,13 @@ static struct davinci_soc_info davinci_soc_info_da850 = { .reset_device = &da8xx_wdt_device, }; -void __init da850_init(void) +void __init da850_init(struct da850_init_board_info *board) { unsigned int v; + if (board && board->ref_clk_rate) + ref_clk.rate = board->ref_clk_rate; + davinci_common_init(&davinci_soc_info_da850); da8xx_syscfg0_base = ioremap(DA8XX_SYSCFG0_BASE, SZ_4K); diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h index ad64da7..66efc5d 100644 --- a/arch/arm/mach-davinci/include/mach/da8xx.h +++ b/arch/arm/mach-davinci/include/mach/da8xx.h @@ -69,8 +69,12 @@ extern unsigned int da850_max_speed; #define DA8XX_AEMIF_CTL_BASE 0x68000000 #define DA8XX_ARM_RAM_BASE 0xffff0000 +struct da850_init_board_info { + unsigned long ref_clk_rate; +}; + void __init da830_init(void); -void __init da850_init(void); +void __init da850_init(struct da850_init_board_info *board); int da830_register_edma(struct edma_rsv_info *rsv); int da850_register_edma(struct edma_rsv_info *rsv[2]); -- 1.7.0.4 _______________________________________________ Davinci-linux-open-source mailing list Davinci-linux-open-source@linux.davincidsp.com http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source