diff options
Diffstat (limited to 'arch/arm/mach-s3c2416/clock.c')
| -rw-r--r-- | arch/arm/mach-s3c2416/clock.c | 60 |
1 files changed, 45 insertions, 15 deletions
diff --git a/arch/arm/mach-s3c2416/clock.c b/arch/arm/mach-s3c2416/clock.c index 3b02d8506e25..afbbe8bc21d1 100644 --- a/arch/arm/mach-s3c2416/clock.c +++ b/arch/arm/mach-s3c2416/clock.c @@ -21,7 +21,6 @@ #include <plat/cpu.h> #include <plat/cpu-freq.h> -#include <plat/pll6553x.h> #include <plat/pll.h> #include <asm/mach/map.h> @@ -29,6 +28,14 @@ #include <mach/regs-clock.h> #include <mach/regs-s3c2443-clock.h> +/* armdiv + * + * this clock is sourced from msysclk and can have a number of + * divider values applied to it to then be fed into armclk. + * The real clock definition is done in s3c2443-clock.c, + * only the armdiv divisor table must be defined here. +*/ + static unsigned int armdiv[8] = { [0] = 1, [1] = 2, @@ -38,11 +45,37 @@ static unsigned int armdiv[8] = { [7] = 8, }; +static struct clksrc_clk hsspi_eplldiv = { + .clk = { + .name = "hsspi-eplldiv", + .parent = &clk_esysclk.clk, + .ctrlbit = (1 << 14), + .enable = s3c2443_clkcon_enable_s, + }, + .reg_div = { .reg = S3C2443_CLKDIV1, .size = 2, .shift = 24 }, +}; + +static struct clk *hsspi_sources[] = { + [0] = &hsspi_eplldiv.clk, + [1] = NULL, /* to fix */ +}; + +static struct clksrc_clk hsspi_mux = { + .clk = { + .name = "hsspi-if", + }, + .sources = &(struct clksrc_sources) { + .sources = hsspi_sources, + .nr_sources = ARRAY_SIZE(hsspi_sources), + }, + .reg_src = { .reg = S3C2443_CLKSRC, .size = 1, .shift = 18 }, +}; + static struct clksrc_clk hsmmc_div[] = { [0] = { .clk = { .name = "hsmmc-div", - .id = 0, + .devname = "s3c-sdhci.0", .parent = &clk_esysclk.clk, }, .reg_div = { .reg = S3C2416_CLKDIV2, .size = 2, .shift = 6 }, @@ -50,7 +83,7 @@ static struct clksrc_clk hsmmc_div[] = { [1] = { .clk = { .name = "hsmmc-div", - .id = 1, + .devname = "s3c-sdhci.1", .parent = &clk_esysclk.clk, }, .reg_div = { .reg = S3C2443_CLKDIV1, .size = 2, .shift = 6 }, @@ -60,8 +93,8 @@ static struct clksrc_clk hsmmc_div[] = { static struct clksrc_clk hsmmc_mux[] = { [0] = { .clk = { - .id = 0, .name = "hsmmc-if", + .devname = "s3c-sdhci.0", .ctrlbit = (1 << 6), .enable = s3c2443_clkcon_enable_s, }, @@ -76,8 +109,8 @@ static struct clksrc_clk hsmmc_mux[] = { }, [1] = { .clk = { - .id = 1, .name = "hsmmc-if", + .devname = "s3c-sdhci.1", .ctrlbit = (1 << 12), .enable = s3c2443_clkcon_enable_s, }, @@ -94,26 +127,21 @@ static struct clksrc_clk hsmmc_mux[] = { static struct clk hsmmc0_clk = { .name = "hsmmc", - .id = 0, + .devname = "s3c-sdhci.0", .parent = &clk_h, .enable = s3c2443_clkcon_enable_h, .ctrlbit = S3C2416_HCLKCON_HSMMC0, }; -static inline unsigned int s3c2416_fclk_div(unsigned long clkcon0) -{ - clkcon0 &= 7 << S3C2443_CLKDIV0_ARMDIV_SHIFT; - - return armdiv[clkcon0 >> S3C2443_CLKDIV0_ARMDIV_SHIFT]; -} - void __init_or_cpufreq s3c2416_setup_clocks(void) { - s3c2443_common_setup_clocks(s3c2416_get_pll, s3c2416_fclk_div); + s3c2443_common_setup_clocks(s3c2416_get_pll); } static struct clksrc_clk *clksrcs[] __initdata = { + &hsspi_eplldiv, + &hsspi_mux, &hsmmc_div[0], &hsmmc_div[1], &hsmmc_mux[0], @@ -131,7 +159,9 @@ void __init s3c2416_init_clocks(int xtal) clk_epll.parent = &clk_epllref.clk; - s3c2443_common_init_clocks(xtal, s3c2416_get_pll, s3c2416_fclk_div); + s3c2443_common_init_clocks(xtal, s3c2416_get_pll, + armdiv, ARRAY_SIZE(armdiv), + S3C2416_CLKDIV0_ARMDIV_MASK); for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++) s3c_register_clksrc(clksrcs[ptr], 1); |