summaryrefslogtreecommitdiff
path: root/arch/arm/mach-exynos4/clock.c
diff options
context:
space:
mode:
authorKukjin Kim <kgene.kim@samsung.com>2011-10-04 20:18:36 +0900
committerKukjin Kim <kgene.kim@samsung.com>2011-10-04 20:18:36 +0900
commitdb3c94a7edc6b29f8d52ba5884dec6a15feeadad (patch)
treeac9207a44cecafb9104ca4e1f46aecb9fe01383d /arch/arm/mach-exynos4/clock.c
parentc9477f38cba225870862fd9e08868ae3d4abdfe0 (diff)
parent568f0e278c6dd33dc11bd19c4ad781d1f8d86800 (diff)
Merge branch 'next-samsung-devel' into next-samsung-devel-2
Conflicts: arch/arm/mach-exynos4/clock.c arch/arm/mach-s3c2412/gpio.c arch/arm/mach-s5p64x0/dma.c arch/arm/mach-s5p64x0/gpiolib.c
Diffstat (limited to 'arch/arm/mach-exynos4/clock.c')
-rw-r--r--arch/arm/mach-exynos4/clock.c220
1 files changed, 215 insertions, 5 deletions
diff --git a/arch/arm/mach-exynos4/clock.c b/arch/arm/mach-exynos4/clock.c
index 413c7cc81979..a25c81836759 100644
--- a/arch/arm/mach-exynos4/clock.c
+++ b/arch/arm/mach-exynos4/clock.c
@@ -111,6 +111,11 @@ struct clk clk_sclk_usbphy1 = {
.name = "sclk_usbphy1",
};
+static struct clk dummy_apb_pclk = {
+ .name = "apb_pclk",
+ .id = -1,
+};
+
static int exynos4_clksrc_mask_top_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKSRC_MASK_TOP, clk, enable);
@@ -146,6 +151,11 @@ static int exynos4_clk_ip_mfc_ctrl(struct clk *clk, int enable)
return s5p_gatectrl(S5P_CLKGATE_IP_MFC, clk, enable);
}
+static int exynos4_clksrc_mask_tv_ctrl(struct clk *clk, int enable)
+{
+ return s5p_gatectrl(S5P_CLKSRC_MASK_TV, clk, enable);
+}
+
static int exynos4_clk_ip_cam_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_IP_CAM, clk, enable);
@@ -186,6 +196,16 @@ static int exynos4_clk_ip_perir_ctrl(struct clk *clk, int enable)
return s5p_gatectrl(S5P_CLKGATE_IP_PERIR, 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);
+}
+
/* Core list of CMU_CPU side */
static struct clksrc_clk clk_mout_apll = {
@@ -503,13 +523,48 @@ static struct clk init_clocks_off[] = {
.enable = exynos4_clk_ip_fsys_ctrl,
.ctrlbit = (1 << 9),
}, {
- .name = "pdma",
- .devname = "s3c-pl330.0",
+ .name = "dac",
+ .devname = "s5p-sdo",
+ .enable = exynos4_clk_ip_tv_ctrl,
+ .ctrlbit = (1 << 2),
+ }, {
+ .name = "mixer",
+ .devname = "s5p-mixer",
+ .enable = exynos4_clk_ip_tv_ctrl,
+ .ctrlbit = (1 << 1),
+ }, {
+ .name = "vp",
+ .devname = "s5p-mixer",
+ .enable = exynos4_clk_ip_tv_ctrl,
+ .ctrlbit = (1 << 0),
+ }, {
+ .name = "hdmi",
+ .devname = "exynos4-hdmi",
+ .enable = exynos4_clk_ip_tv_ctrl,
+ .ctrlbit = (1 << 3),
+ }, {
+ .name = "hdmiphy",
+ .devname = "exynos4-hdmi",
+ .enable = exynos4_clk_hdmiphy_ctrl,
+ .ctrlbit = (1 << 0),
+ }, {
+ .name = "dacphy",
+ .devname = "s5p-sdo",
+ .enable = exynos4_clk_dac_ctrl,
+ .ctrlbit = (1 << 0),
+ }, {
+ .name = "sata",
+ .parent = &clk_aclk_133.clk,
+ .enable = exynos4_clk_ip_fsys_ctrl,
+ .ctrlbit = (1 << 10),
+ }, {
+ .name = "dma",
+ .devname = "dma-pl330.0",
.enable = exynos4_clk_ip_fsys_ctrl,
.ctrlbit = (1 << 0),
}, {
- .name = "pdma",
- .devname = "s3c-pl330.1",
+ .name = "dma",
+ .devname = "dma-pl330.1",
.enable = exynos4_clk_ip_fsys_ctrl,
.ctrlbit = (1 << 1),
}, {
@@ -630,6 +685,12 @@ static struct clk init_clocks_off[] = {
.enable = exynos4_clk_ip_peril_ctrl,
.ctrlbit = (1 << 13),
}, {
+ .name = "i2c",
+ .devname = "s3c2440-hdmiphy-i2c",
+ .parent = &clk_aclk_100.clk,
+ .enable = exynos4_clk_ip_peril_ctrl,
+ .ctrlbit = (1 << 14),
+ }, {
.name = "SYSMMU_MDMA",
.enable = exynos4_clk_ip_image_ctrl,
.ctrlbit = (1 << 5),
@@ -831,6 +892,81 @@ static struct clksrc_sources clkset_mout_mfc = {
.nr_sources = ARRAY_SIZE(clkset_mout_mfc_list),
};
+static struct clk *clkset_sclk_dac_list[] = {
+ [0] = &clk_sclk_vpll.clk,
+ [1] = &clk_sclk_hdmiphy,
+};
+
+static struct clksrc_sources clkset_sclk_dac = {
+ .sources = clkset_sclk_dac_list,
+ .nr_sources = ARRAY_SIZE(clkset_sclk_dac_list),
+};
+
+static struct clksrc_clk clk_sclk_dac = {
+ .clk = {
+ .name = "sclk_dac",
+ .enable = exynos4_clksrc_mask_tv_ctrl,
+ .ctrlbit = (1 << 8),
+ },
+ .sources = &clkset_sclk_dac,
+ .reg_src = { .reg = S5P_CLKSRC_TV, .shift = 8, .size = 1 },
+};
+
+static struct clksrc_clk clk_sclk_pixel = {
+ .clk = {
+ .name = "sclk_pixel",
+ .parent = &clk_sclk_vpll.clk,
+ },
+ .reg_div = { .reg = S5P_CLKDIV_TV, .shift = 0, .size = 4 },
+};
+
+static struct clk *clkset_sclk_hdmi_list[] = {
+ [0] = &clk_sclk_pixel.clk,
+ [1] = &clk_sclk_hdmiphy,
+};
+
+static struct clksrc_sources clkset_sclk_hdmi = {
+ .sources = clkset_sclk_hdmi_list,
+ .nr_sources = ARRAY_SIZE(clkset_sclk_hdmi_list),
+};
+
+static struct clksrc_clk clk_sclk_hdmi = {
+ .clk = {
+ .name = "sclk_hdmi",
+ .enable = exynos4_clksrc_mask_tv_ctrl,
+ .ctrlbit = (1 << 0),
+ },
+ .sources = &clkset_sclk_hdmi,
+ .reg_src = { .reg = S5P_CLKSRC_TV, .shift = 0, .size = 1 },
+};
+
+static struct clk *clkset_sclk_mixer_list[] = {
+ [0] = &clk_sclk_dac.clk,
+ [1] = &clk_sclk_hdmi.clk,
+};
+
+static struct clksrc_sources clkset_sclk_mixer = {
+ .sources = clkset_sclk_mixer_list,
+ .nr_sources = ARRAY_SIZE(clkset_sclk_mixer_list),
+};
+
+static struct clksrc_clk clk_sclk_mixer = {
+ .clk = {
+ .name = "sclk_mixer",
+ .enable = exynos4_clksrc_mask_tv_ctrl,
+ .ctrlbit = (1 << 4),
+ },
+ .sources = &clkset_sclk_mixer,
+ .reg_src = { .reg = S5P_CLKSRC_TV, .shift = 4, .size = 1 },
+};
+
+static struct clksrc_clk *sclk_tv[] = {
+ &clk_sclk_dac,
+ &clk_sclk_pixel,
+ &clk_sclk_hdmi,
+ &clk_sclk_mixer,
+};
+
static struct clksrc_clk clk_dout_mmc0 = {
.clk = {
.name = "dout_mmc0",
@@ -1157,6 +1293,71 @@ static struct clk_ops exynos4_fout_apll_ops = {
.get_rate = exynos4_fout_apll_get_rate,
};
+static u32 vpll_div[][8] = {
+ { 54000000, 3, 53, 3, 1024, 0, 17, 0 },
+ { 108000000, 3, 53, 2, 1024, 0, 17, 0 },
+};
+
+static unsigned long exynos4_vpll_get_rate(struct clk *clk)
+{
+ return clk->rate;
+}
+
+static int exynos4_vpll_set_rate(struct clk *clk, unsigned long rate)
+{
+ unsigned int vpll_con0, vpll_con1 = 0;
+ unsigned int i;
+
+ /* Return if nothing changed */
+ if (clk->rate == rate)
+ return 0;
+
+ vpll_con0 = __raw_readl(S5P_VPLL_CON0);
+ vpll_con0 &= ~(0x1 << 27 | \
+ PLL90XX_MDIV_MASK << PLL46XX_MDIV_SHIFT | \
+ PLL90XX_PDIV_MASK << PLL46XX_PDIV_SHIFT | \
+ PLL90XX_SDIV_MASK << PLL46XX_SDIV_SHIFT);
+
+ vpll_con1 = __raw_readl(S5P_VPLL_CON1);
+ vpll_con1 &= ~(PLL46XX_MRR_MASK << PLL46XX_MRR_SHIFT | \
+ PLL46XX_MFR_MASK << PLL46XX_MFR_SHIFT | \
+ PLL4650C_KDIV_MASK << PLL46XX_KDIV_SHIFT);
+
+ for (i = 0; i < ARRAY_SIZE(vpll_div); i++) {
+ if (vpll_div[i][0] == rate) {
+ vpll_con0 |= vpll_div[i][1] << PLL46XX_PDIV_SHIFT;
+ vpll_con0 |= vpll_div[i][2] << PLL46XX_MDIV_SHIFT;
+ vpll_con0 |= vpll_div[i][3] << PLL46XX_SDIV_SHIFT;
+ vpll_con1 |= vpll_div[i][4] << PLL46XX_KDIV_SHIFT;
+ vpll_con1 |= vpll_div[i][5] << PLL46XX_MFR_SHIFT;
+ vpll_con1 |= vpll_div[i][6] << PLL46XX_MRR_SHIFT;
+ vpll_con0 |= vpll_div[i][7] << 27;
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(vpll_div)) {
+ printk(KERN_ERR "%s: Invalid Clock VPLL Frequency\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ __raw_writel(vpll_con0, S5P_VPLL_CON0);
+ __raw_writel(vpll_con1, S5P_VPLL_CON1);
+
+ /* Wait for VPLL lock */
+ while (!(__raw_readl(S5P_VPLL_CON0) & (1 << PLL46XX_LOCKED_SHIFT)))
+ continue;
+
+ clk->rate = rate;
+ return 0;
+}
+
+static struct clk_ops exynos4_vpll_ops = {
+ .get_rate = exynos4_vpll_get_rate,
+ .set_rate = exynos4_vpll_set_rate,
+};
+
void __init_or_cpufreq exynos4_setup_clocks(void)
{
struct clk *xtal_clk;
@@ -1214,6 +1415,7 @@ void __init_or_cpufreq exynos4_setup_clocks(void)
clk_fout_apll.ops = &exynos4_fout_apll_ops;
clk_fout_mpll.rate = mpll;
clk_fout_epll.rate = epll;
+ clk_fout_vpll.ops = &exynos4_vpll_ops;
clk_fout_vpll.rate = vpll;
printk(KERN_INFO "EXYNOS4: PLL settings, A=%ld, M=%ld, E=%ld V=%ld",
@@ -1241,7 +1443,10 @@ void __init_or_cpufreq exynos4_setup_clocks(void)
}
static struct clk *clks[] __initdata = {
- /* Nothing here yet */
+ &clk_sclk_hdmi27m,
+ &clk_sclk_hdmiphy,
+ &clk_sclk_usbphy0,
+ &clk_sclk_usbphy1,
};
#ifdef CONFIG_PM_SLEEP
@@ -1275,6 +1480,9 @@ void __init exynos4_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));
@@ -1282,5 +1490,7 @@ void __init exynos4_register_clocks(void)
s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
register_syscore_ops(&exynos4_clock_syscore_ops);
+ s3c24xx_register_clock(&dummy_apb_pclk);
+
s3c_pwmclk_init();
}