diff options
Diffstat (limited to 'arch/arm/mach-s5pv210/clock.c')
| -rw-r--r-- | arch/arm/mach-s5pv210/clock.c | 131 |
1 files changed, 120 insertions, 11 deletions
diff --git a/arch/arm/mach-s5pv210/clock.c b/arch/arm/mach-s5pv210/clock.c index 60cf8226de8b..4c5ac7a69e9e 100644 --- a/arch/arm/mach-s5pv210/clock.c +++ b/arch/arm/mach-s5pv210/clock.c @@ -174,6 +174,16 @@ static int s5pv210_clk_mask1_ctrl(struct clk *clk, int enable) return s5p_gatectrl(S5P_CLK_SRC_MASK1, clk, enable); } +static int exynos4_clk_hdmiphy_ctrl(struct clk *clk, int enable) +{ + return s5p_gatectrl(S5P_HDMI_PHY_CONTROL, clk, enable); +} + +static int exynos4_clk_dac_ctrl(struct clk *clk, int enable) +{ + return s5p_gatectrl(S5P_DAC_PHY_CONTROL, clk, enable); +} + static struct clk clk_sclk_hdmi27m = { .name = "sclk_hdmi27m", .rate = 27000000, @@ -335,6 +345,40 @@ static struct clk init_clocks_off[] = { .enable = s5pv210_clk_ip0_ctrl, .ctrlbit = (1 << 16), }, { + .name = "dac", + .devname = "s5p-sdo", + .parent = &clk_hclk_dsys.clk, + .enable = s5pv210_clk_ip1_ctrl, + .ctrlbit = (1 << 10), + }, { + .name = "mixer", + .devname = "s5p-mixer", + .parent = &clk_hclk_dsys.clk, + .enable = s5pv210_clk_ip1_ctrl, + .ctrlbit = (1 << 9), + }, { + .name = "vp", + .devname = "s5p-mixer", + .parent = &clk_hclk_dsys.clk, + .enable = s5pv210_clk_ip1_ctrl, + .ctrlbit = (1 << 8), + }, { + .name = "hdmi", + .devname = "s5pv210-hdmi", + .parent = &clk_hclk_dsys.clk, + .enable = s5pv210_clk_ip1_ctrl, + .ctrlbit = (1 << 11), + }, { + .name = "hdmiphy", + .devname = "s5pv210-hdmi", + .enable = exynos4_clk_hdmiphy_ctrl, + .ctrlbit = (1 << 0), + }, { + .name = "dacphy", + .devname = "s5p-sdo", + .enable = exynos4_clk_dac_ctrl, + .ctrlbit = (1 << 0), + }, { .name = "otg", .parent = &clk_hclk_psys.clk, .enable = s5pv210_clk_ip1_ctrl, @@ -605,6 +649,23 @@ static struct clksrc_sources clkset_sclk_mixer = { .nr_sources = ARRAY_SIZE(clkset_sclk_mixer_list), }; +static struct clksrc_clk clk_sclk_mixer = { + .clk = { + .name = "sclk_mixer", + .enable = s5pv210_clk_mask0_ctrl, + .ctrlbit = (1 << 1), + }, + .sources = &clkset_sclk_mixer, + .reg_src = { .reg = S5P_CLK_SRC1, .shift = 4, .size = 1 }, +}; + +static struct clksrc_clk *sclk_tv[] = { + &clk_sclk_dac, + &clk_sclk_pixel, + &clk_sclk_hdmi, + &clk_sclk_mixer, +}; + static struct clk *clkset_sclk_audio0_list[] = { [0] = &clk_ext_xtal_mux, [1] = &clk_pcmcdclk0, @@ -788,14 +849,6 @@ static struct clksrc_clk clksrcs[] = { .reg_div = { .reg = S5P_CLK_DIV4, .shift = 28, .size = 4 }, }, { .clk = { - .name = "sclk_mixer", - .enable = s5pv210_clk_mask0_ctrl, - .ctrlbit = (1 << 1), - }, - .sources = &clkset_sclk_mixer, - .reg_src = { .reg = S5P_CLK_SRC1, .shift = 4, .size = 1 }, - }, { - .clk = { .name = "sclk_fimc", .devname = "s5pv210-fimc.0", .enable = s5pv210_clk_mask1_ctrl, @@ -984,9 +1037,6 @@ static struct clksrc_clk *sysclks[] = { &clk_pclk_psys, &clk_vpllsrc, &clk_sclk_vpll, - &clk_sclk_dac, - &clk_sclk_pixel, - &clk_sclk_hdmi, &clk_mout_dmc0, &clk_sclk_dmc0, &clk_sclk_audio0, @@ -1071,6 +1121,61 @@ static struct clk_ops s5pv210_epll_ops = { .get_rate = s5p_epll_get_rate, }; +static u32 vpll_div[][5] = { + { 54000000, 3, 53, 3, 0 }, + { 108000000, 3, 53, 2, 0 }, +}; + +static unsigned long s5pv210_vpll_get_rate(struct clk *clk) +{ + return clk->rate; +} + +static int s5pv210_vpll_set_rate(struct clk *clk, unsigned long rate) +{ + unsigned int vpll_con; + unsigned int i; + + /* Return if nothing changed */ + if (clk->rate == rate) + return 0; + + vpll_con = __raw_readl(S5P_VPLL_CON); + vpll_con &= ~(0x1 << 27 | \ + PLL90XX_MDIV_MASK << PLL90XX_MDIV_SHIFT | \ + PLL90XX_PDIV_MASK << PLL90XX_PDIV_SHIFT | \ + PLL90XX_SDIV_MASK << PLL90XX_SDIV_SHIFT); + + for (i = 0; i < ARRAY_SIZE(vpll_div); i++) { + if (vpll_div[i][0] == rate) { + vpll_con |= vpll_div[i][1] << PLL90XX_PDIV_SHIFT; + vpll_con |= vpll_div[i][2] << PLL90XX_MDIV_SHIFT; + vpll_con |= vpll_div[i][3] << PLL90XX_SDIV_SHIFT; + vpll_con |= vpll_div[i][4] << 27; + break; + } + } + + if (i == ARRAY_SIZE(vpll_div)) { + printk(KERN_ERR "%s: Invalid Clock VPLL Frequency\n", + __func__); + return -EINVAL; + } + + __raw_writel(vpll_con, S5P_VPLL_CON); + + /* Wait for VPLL lock */ + while (!(__raw_readl(S5P_VPLL_CON) & (1 << PLL90XX_LOCKED_SHIFT))) + continue; + + clk->rate = rate; + return 0; +} +static struct clk_ops s5pv210_vpll_ops = { + .get_rate = s5pv210_vpll_get_rate, + .set_rate = s5pv210_vpll_set_rate, +}; + void __init_or_cpufreq s5pv210_setup_clocks(void) { struct clk *xtal_clk; @@ -1119,6 +1224,7 @@ void __init_or_cpufreq s5pv210_setup_clocks(void) clk_fout_apll.ops = &clk_fout_apll_ops; clk_fout_mpll.rate = mpll; clk_fout_epll.rate = epll; + clk_fout_vpll.ops = &s5pv210_vpll_ops; clk_fout_vpll.rate = vpll; printk(KERN_INFO "S5PV210: PLL settings, A=%ld, M=%ld, E=%ld V=%ld", @@ -1164,6 +1270,9 @@ void __init s5pv210_register_clocks(void) for (ptr = 0; ptr < ARRAY_SIZE(sysclks); ptr++) s3c_register_clksrc(sysclks[ptr], 1); + for (ptr = 0; ptr < ARRAY_SIZE(sclk_tv); ptr++) + s3c_register_clksrc(sclk_tv[ptr], 1); + s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs)); s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks)); 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