diff options
Diffstat (limited to 'arch/arm/mach-s3c64xx/clock.c')
-rw-r--r-- | arch/arm/mach-s3c64xx/clock.c | 243 |
1 files changed, 154 insertions, 89 deletions
diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c index 625219b9cef..31bb27dc4ae 100644 --- a/arch/arm/mach-s3c64xx/clock.c +++ b/arch/arm/mach-s3c64xx/clock.c @@ -184,18 +184,6 @@ static struct clk init_clocks_off[] = { .enable = s3c64xx_pclk_ctrl, .ctrlbit = S3C_CLKCON_PCLK_SPI1, }, { - .name = "spi_48m", - .devname = "s3c64xx-spi.0", - .parent = &clk_48m, - .enable = s3c64xx_sclk_ctrl, - .ctrlbit = S3C_CLKCON_SCLK_SPI0_48, - }, { - .name = "spi_48m", - .devname = "s3c64xx-spi.1", - .parent = &clk_48m, - .enable = s3c64xx_sclk_ctrl, - .ctrlbit = S3C_CLKCON_SCLK_SPI1_48, - }, { .name = "48m", .devname = "s3c-sdhci.0", .parent = &clk_48m, @@ -226,6 +214,22 @@ static struct clk init_clocks_off[] = { }, }; +static struct clk clk_48m_spi0 = { + .name = "spi_48m", + .devname = "s3c64xx-spi.0", + .parent = &clk_48m, + .enable = s3c64xx_sclk_ctrl, + .ctrlbit = S3C_CLKCON_SCLK_SPI0_48, +}; + +static struct clk clk_48m_spi1 = { + .name = "spi_48m", + .devname = "s3c64xx-spi.1", + .parent = &clk_48m, + .enable = s3c64xx_sclk_ctrl, + .ctrlbit = S3C_CLKCON_SCLK_SPI1_48, +}; + static struct clk init_clocks[] = { { .name = "lcd", @@ -243,24 +247,6 @@ static struct clk init_clocks[] = { .enable = s3c64xx_hclk_ctrl, .ctrlbit = S3C_CLKCON_HCLK_UHOST, }, { - .name = "hsmmc", - .devname = "s3c-sdhci.0", - .parent = &clk_h, - .enable = s3c64xx_hclk_ctrl, - .ctrlbit = S3C_CLKCON_HCLK_HSMMC0, - }, { - .name = "hsmmc", - .devname = "s3c-sdhci.1", - .parent = &clk_h, - .enable = s3c64xx_hclk_ctrl, - .ctrlbit = S3C_CLKCON_HCLK_HSMMC1, - }, { - .name = "hsmmc", - .devname = "s3c-sdhci.2", - .parent = &clk_h, - .enable = s3c64xx_hclk_ctrl, - .ctrlbit = S3C_CLKCON_HCLK_HSMMC2, - }, { .name = "otg", .parent = &clk_h, .enable = s3c64xx_hclk_ctrl, @@ -310,6 +296,29 @@ static struct clk init_clocks[] = { } }; +static struct clk clk_hsmmc0 = { + .name = "hsmmc", + .devname = "s3c-sdhci.0", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_HSMMC0, +}; + +static struct clk clk_hsmmc1 = { + .name = "hsmmc", + .devname = "s3c-sdhci.1", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_HSMMC1, +}; + +static struct clk clk_hsmmc2 = { + .name = "hsmmc", + .devname = "s3c-sdhci.2", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_HSMMC2, +}; static struct clk clk_fout_apll = { .name = "fout_apll", @@ -578,36 +587,6 @@ static struct clksrc_sources clkset_camif = { static struct clksrc_clk clksrcs[] = { { .clk = { - .name = "mmc_bus", - .devname = "s3c-sdhci.0", - .ctrlbit = S3C_CLKCON_SCLK_MMC0, - .enable = s3c64xx_sclk_ctrl, - }, - .reg_src = { .reg = S3C_CLK_SRC, .shift = 18, .size = 2 }, - .reg_div = { .reg = S3C_CLK_DIV1, .shift = 0, .size = 4 }, - .sources = &clkset_spi_mmc, - }, { - .clk = { - .name = "mmc_bus", - .devname = "s3c-sdhci.1", - .ctrlbit = S3C_CLKCON_SCLK_MMC1, - .enable = s3c64xx_sclk_ctrl, - }, - .reg_src = { .reg = S3C_CLK_SRC, .shift = 20, .size = 2 }, - .reg_div = { .reg = S3C_CLK_DIV1, .shift = 4, .size = 4 }, - .sources = &clkset_spi_mmc, - }, { - .clk = { - .name = "mmc_bus", - .devname = "s3c-sdhci.2", - .ctrlbit = S3C_CLKCON_SCLK_MMC2, - .enable = s3c64xx_sclk_ctrl, - }, - .reg_src = { .reg = S3C_CLK_SRC, .shift = 22, .size = 2 }, - .reg_div = { .reg = S3C_CLK_DIV1, .shift = 8, .size = 4 }, - .sources = &clkset_spi_mmc, - }, { - .clk = { .name = "usb-bus-host", .ctrlbit = S3C_CLKCON_SCLK_UHOST, .enable = s3c64xx_sclk_ctrl, @@ -617,35 +596,6 @@ static struct clksrc_clk clksrcs[] = { .sources = &clkset_uhost, }, { .clk = { - .name = "uclk1", - .ctrlbit = S3C_CLKCON_SCLK_UART, - .enable = s3c64xx_sclk_ctrl, - }, - .reg_src = { .reg = S3C_CLK_SRC, .shift = 13, .size = 1 }, - .reg_div = { .reg = S3C_CLK_DIV2, .shift = 16, .size = 4 }, - .sources = &clkset_uart, - }, { -/* Where does UCLK0 come from? */ - .clk = { - .name = "spi-bus", - .devname = "s3c64xx-spi.0", - .ctrlbit = S3C_CLKCON_SCLK_SPI0, - .enable = s3c64xx_sclk_ctrl, - }, - .reg_src = { .reg = S3C_CLK_SRC, .shift = 14, .size = 2 }, - .reg_div = { .reg = S3C_CLK_DIV2, .shift = 0, .size = 4 }, - .sources = &clkset_spi_mmc, - }, { - .clk = { - .name = "spi-bus", - .devname = "s3c64xx-spi.1", - .enable = s3c64xx_sclk_ctrl, - }, - .reg_src = { .reg = S3C_CLK_SRC, .shift = 16, .size = 2 }, - .reg_div = { .reg = S3C_CLK_DIV2, .shift = 4, .size = 4 }, - .sources = &clkset_spi_mmc, - }, { - .clk = { .name = "audio-bus", .devname = "samsung-i2s.0", .ctrlbit = S3C_CLKCON_SCLK_AUDIO0, @@ -695,6 +645,78 @@ static struct clksrc_clk clksrcs[] = { }, }; +/* Where does UCLK0 come from? */ +static struct clksrc_clk clk_sclk_uclk = { + .clk = { + .name = "uclk1", + .ctrlbit = S3C_CLKCON_SCLK_UART, + .enable = s3c64xx_sclk_ctrl, + }, + .reg_src = { .reg = S3C_CLK_SRC, .shift = 13, .size = 1 }, + .reg_div = { .reg = S3C_CLK_DIV2, .shift = 16, .size = 4 }, + .sources = &clkset_uart, +}; + +static struct clksrc_clk clk_sclk_mmc0 = { + .clk = { + .name = "mmc_bus", + .devname = "s3c-sdhci.0", + .ctrlbit = S3C_CLKCON_SCLK_MMC0, + .enable = s3c64xx_sclk_ctrl, + }, + .reg_src = { .reg = S3C_CLK_SRC, .shift = 18, .size = 2 }, + .reg_div = { .reg = S3C_CLK_DIV1, .shift = 0, .size = 4 }, + .sources = &clkset_spi_mmc, +}; + +static struct clksrc_clk clk_sclk_mmc1 = { + .clk = { + .name = "mmc_bus", + .devname = "s3c-sdhci.1", + .ctrlbit = S3C_CLKCON_SCLK_MMC1, + .enable = s3c64xx_sclk_ctrl, + }, + .reg_src = { .reg = S3C_CLK_SRC, .shift = 20, .size = 2 }, + .reg_div = { .reg = S3C_CLK_DIV1, .shift = 4, .size = 4 }, + .sources = &clkset_spi_mmc, +}; + +static struct clksrc_clk clk_sclk_mmc2 = { + .clk = { + .name = "mmc_bus", + .devname = "s3c-sdhci.2", + .ctrlbit = S3C_CLKCON_SCLK_MMC2, + .enable = s3c64xx_sclk_ctrl, + }, + .reg_src = { .reg = S3C_CLK_SRC, .shift = 22, .size = 2 }, + .reg_div = { .reg = S3C_CLK_DIV1, .shift = 8, .size = 4 }, + .sources = &clkset_spi_mmc, +}; + +static struct clksrc_clk clk_sclk_spi0 = { + .clk = { + .name = "spi-bus", + .devname = "s3c64xx-spi.0", + .ctrlbit = S3C_CLKCON_SCLK_SPI0, + .enable = s3c64xx_sclk_ctrl, + }, + .reg_src = { .reg = S3C_CLK_SRC, .shift = 14, .size = 2 }, + .reg_div = { .reg = S3C_CLK_DIV2, .shift = 0, .size = 4 }, + .sources = &clkset_spi_mmc, +}; + +static struct clksrc_clk clk_sclk_spi1 = { + .clk = { + .name = "spi-bus", + .devname = "s3c64xx-spi.1", + .ctrlbit = S3C_CLKCON_SCLK_SPI1, + .enable = s3c64xx_sclk_ctrl, + }, + .reg_src = { .reg = S3C_CLK_SRC, .shift = 16, .size = 2 }, + .reg_div = { .reg = S3C_CLK_DIV2, .shift = 4, .size = 4 }, + .sources = &clkset_spi_mmc, +}; + /* Clock initialisation code */ static struct clksrc_clk *init_parents[] = { @@ -703,6 +725,39 @@ static struct clksrc_clk *init_parents[] = { &clk_mout_mpll, }; +static struct clksrc_clk *clksrc_cdev[] = { + &clk_sclk_uclk, + &clk_sclk_mmc0, + &clk_sclk_mmc1, + &clk_sclk_mmc2, + &clk_sclk_spi0, + &clk_sclk_spi1, +}; + +static struct clk *clk_cdev[] = { + &clk_hsmmc0, + &clk_hsmmc1, + &clk_hsmmc2, + &clk_48m_spi0, + &clk_48m_spi1, +}; + +static struct clk_lookup s3c64xx_clk_lookup[] = { + CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p), + CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_sclk_uclk.clk), + CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.0", &clk_hsmmc0), + CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.0", &clk_hsmmc1), + CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.0", &clk_hsmmc2), + CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk), + CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk), + CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk), + CLKDEV_INIT(NULL, "spi_busclk0", &clk_p), + CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk1", &clk_sclk_spi0.clk), + CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk2", &clk_48m_spi0), + CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk1", &clk_sclk_spi1.clk), + CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk2", &clk_48m_spi1), +}; + #define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1) void __init_or_cpufreq s3c64xx_setup_clocks(void) @@ -811,6 +866,8 @@ static struct clk *clks[] __initdata = { void __init s3c64xx_register_clocks(unsigned long xtal, unsigned armclk_divlimit) { + unsigned int cnt; + armclk_mask = armclk_divlimit; s3c24xx_register_baseclocks(xtal); @@ -821,7 +878,15 @@ void __init s3c64xx_register_clocks(unsigned long xtal, s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off)); s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off)); + s3c24xx_register_clocks(clk_cdev, ARRAY_SIZE(clk_cdev)); + for (cnt = 0; cnt < ARRAY_SIZE(clk_cdev); cnt++) + s3c_disable_clocks(clk_cdev[cnt], 1); + s3c24xx_register_clocks(clks1, ARRAY_SIZE(clks1)); s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs)); + for (cnt = 0; cnt < ARRAY_SIZE(clksrc_cdev); cnt++) + s3c_register_clksrc(clksrc_cdev[cnt], 1); + clkdev_add_table(s3c64xx_clk_lookup, ARRAY_SIZE(s3c64xx_clk_lookup)); + s3c_pwmclk_init(); } |