return fout;
}
+/* exynos5: return pll clock frequency */
+static unsigned long exynos5_get_pll_clk(int pllreg)
+{
+ struct exynos5_clock *clk =
+ (struct exynos5_clock *)samsung_get_base_clock();
+ unsigned long r, m, p, s, k = 0, mask, fout;
+ unsigned int freq;
+
+ switch (pllreg) {
+ case APLL:
+ r = readl(&clk->apll_con0);
+ break;
+ case MPLL:
+ r = readl(&clk->mpll_con0);
+ break;
+ case EPLL:
+ r = readl(&clk->epll_con0);
+ k = readl(&clk->epll_con1);
+ break;
+ case VPLL:
+ r = readl(&clk->vpll_con0);
+ k = readl(&clk->vpll_con1);
+ break;
+ default:
+ printf("Unsupported PLL (%d)\n", pllreg);
+ return 0;
+ }
+
+ /*
+ * APLL_CON: MIDV [25:16]
+ * MPLL_CON: MIDV [25:16]
+ * EPLL_CON: MIDV [24:16]
+ * VPLL_CON: MIDV [24:16]
+ */
+ if (pllreg == APLL || pllreg == MPLL)
+ mask = 0x3ff;
+ else
+ mask = 0x1ff;
+
+ m = (r >> 16) & mask;
+
+ /* PDIV [13:8] */
+ p = (r >> 8) & 0x3f;
+ /* SDIV [2:0] */
+ s = r & 0x7;
+
+ freq = CONFIG_SYS_CLK_FREQ;
+
+ if (pllreg == EPLL) {
+ k = k & 0xffff;
+ /* FOUT = (MDIV + K / 65536) * FIN / (PDIV * 2^SDIV) */
+ fout = (m + k / 65536) * (freq / (p * (1 << s)));
+ } else if (pllreg == VPLL) {
+ k = k & 0xfff;
+ /* FOUT = (MDIV + K / 1024) * FIN / (PDIV * 2^SDIV) */
+ fout = (m + k / 1024) * (freq / (p * (1 << s)));
+ } else {
+ if (s < 1)
+ s = 1;
+ /* FOUT = MDIV * FIN / (PDIV * 2^(SDIV - 1)) */
+ fout = m * (freq / (p * (1 << (s - 1))));
+ }
+
+ return fout;
+}
+
/* exynos4: return ARM clock frequency */
static unsigned long exynos4_get_arm_clk(void)
{
return armclk;
}
+/* exynos5: return ARM clock frequency */
+static unsigned long exynos5_get_arm_clk(void)
+{
+ struct exynos5_clock *clk =
+ (struct exynos5_clock *)samsung_get_base_clock();
+ unsigned long div;
+ unsigned long armclk;
+ unsigned int arm_ratio;
+ unsigned int arm2_ratio;
+
+ div = readl(&clk->div_cpu0);
+
+ /* ARM_RATIO: [2:0], ARM2_RATIO: [30:28] */
+ arm_ratio = (div >> 0) & 0x7;
+ arm2_ratio = (div >> 28) & 0x7;
+
+ armclk = get_pll_clk(APLL) / (arm_ratio + 1);
+ armclk /= (arm2_ratio + 1);
+
+ return armclk;
+}
+
/* exynos4: return pwm clock frequency */
static unsigned long exynos4_get_pwm_clk(void)
{
return pclk;
}
+/* exynos5: return pwm clock frequency */
+static unsigned long exynos5_get_pwm_clk(void)
+{
+ struct exynos5_clock *clk =
+ (struct exynos5_clock *)samsung_get_base_clock();
+ unsigned long pclk, sclk;
+ unsigned int ratio;
+
+ /*
+ * CLK_DIV_PERIC3
+ * PWM_RATIO [3:0]
+ */
+ ratio = readl(&clk->div_peric3);
+ ratio = ratio & 0xf;
+ sclk = get_pll_clk(MPLL);
+
+ pclk = sclk / (ratio + 1);
+
+ return pclk;
+}
+
/* exynos4: return uart clock frequency */
static unsigned long exynos4_get_uart_clk(int dev_index)
{
return uclk;
}
+/* exynos5: return uart clock frequency */
+static unsigned long exynos5_get_uart_clk(int dev_index)
+{
+ struct exynos5_clock *clk =
+ (struct exynos5_clock *)samsung_get_base_clock();
+ unsigned long uclk, sclk;
+ unsigned int sel;
+ unsigned int ratio;
+
+ /*
+ * CLK_SRC_PERIC0
+ * UART0_SEL [3:0]
+ * UART1_SEL [7:4]
+ * UART2_SEL [8:11]
+ * UART3_SEL [12:15]
+ * UART4_SEL [16:19]
+ * UART5_SEL [23:20]
+ */
+ sel = readl(&clk->src_peric0);
+ sel = (sel >> (dev_index << 2)) & 0xf;
+
+ if (sel == 0x6)
+ sclk = get_pll_clk(MPLL);
+ else if (sel == 0x7)
+ sclk = get_pll_clk(EPLL);
+ else if (sel == 0x8)
+ sclk = get_pll_clk(VPLL);
+ else
+ return 0;
+
+ /*
+ * CLK_DIV_PERIC0
+ * UART0_RATIO [3:0]
+ * UART1_RATIO [7:4]
+ * UART2_RATIO [8:11]
+ * UART3_RATIO [12:15]
+ * UART4_RATIO [16:19]
+ * UART5_RATIO [23:20]
+ */
+ ratio = readl(&clk->div_peric0);
+ ratio = (ratio >> (dev_index << 2)) & 0xf;
+
+ uclk = sclk / (ratio + 1);
+
+ return uclk;
+}
+
/* exynos4: set the mmc clock */
static void exynos4_set_mmc_clk(int dev_index, unsigned int div)
{
writel(val, addr);
}
+/* exynos5: set the mmc clock */
+static void exynos5_set_mmc_clk(int dev_index, unsigned int div)
+{
+ struct exynos5_clock *clk =
+ (struct exynos5_clock *)samsung_get_base_clock();
+ unsigned int addr;
+ unsigned int val;
+
+ /*
+ * CLK_DIV_FSYS1
+ * MMC0_PRE_RATIO [15:8], MMC1_PRE_RATIO [31:24]
+ * CLK_DIV_FSYS2
+ * MMC2_PRE_RATIO [15:8], MMC3_PRE_RATIO [31:24]
+ */
+ if (dev_index < 2) {
+ addr = (unsigned int)&clk->div_fsys1;
+ } else {
+ addr = (unsigned int)&clk->div_fsys2;
+ dev_index -= 2;
+ }
+
+ val = readl(addr);
+ val &= ~(0xff << ((dev_index << 4) + 8));
+ val |= (div & 0xff) << ((dev_index << 4) + 8);
+ writel(val, addr);
+}
+
+/* get_lcd_clk: return lcd clock frequency */
+static unsigned long exynos4_get_lcd_clk(void)
+{
+ struct exynos4_clock *clk =
+ (struct exynos4_clock *)samsung_get_base_clock();
+ unsigned long pclk, sclk;
+ unsigned int sel;
+ unsigned int ratio;
+
+ /*
+ * CLK_SRC_LCD0
+ * FIMD0_SEL [3:0]
+ */
+ sel = readl(&clk->src_lcd0);
+ sel = sel & 0xf;
+
+ /*
+ * 0x6: SCLK_MPLL
+ * 0x7: SCLK_EPLL
+ * 0x8: SCLK_VPLL
+ */
+ if (sel == 0x6)
+ sclk = get_pll_clk(MPLL);
+ else if (sel == 0x7)
+ sclk = get_pll_clk(EPLL);
+ else if (sel == 0x8)
+ sclk = get_pll_clk(VPLL);
+ else
+ return 0;
+
+ /*
+ * CLK_DIV_LCD0
+ * FIMD0_RATIO [3:0]
+ */
+ ratio = readl(&clk->div_lcd0);
+ ratio = ratio & 0xf;
+
+ pclk = sclk / (ratio + 1);
+
+ return pclk;
+}
+
+void exynos4_set_lcd_clk(void)
+{
+ struct exynos4_clock *clk =
+ (struct exynos4_clock *)samsung_get_base_clock();
+ unsigned int cfg = 0;
+
+ /*
+ * CLK_GATE_BLOCK
+ * CLK_CAM [0]
+ * CLK_TV [1]
+ * CLK_MFC [2]
+ * CLK_G3D [3]
+ * CLK_LCD0 [4]
+ * CLK_LCD1 [5]
+ * CLK_GPS [7]
+ */
+ cfg = readl(&clk->gate_block);
+ cfg |= 1 << 4;
+ writel(cfg, &clk->gate_block);
+
+ /*
+ * CLK_SRC_LCD0
+ * FIMD0_SEL [3:0]
+ * MDNIE0_SEL [7:4]
+ * MDNIE_PWM0_SEL [8:11]
+ * MIPI0_SEL [12:15]
+ * set lcd0 src clock 0x6: SCLK_MPLL
+ */
+ cfg = readl(&clk->src_lcd0);
+ cfg &= ~(0xf);
+ cfg |= 0x6;
+ writel(cfg, &clk->src_lcd0);
+
+ /*
+ * CLK_GATE_IP_LCD0
+ * CLK_FIMD0 [0]
+ * CLK_MIE0 [1]
+ * CLK_MDNIE0 [2]
+ * CLK_DSIM0 [3]
+ * CLK_SMMUFIMD0 [4]
+ * CLK_PPMULCD0 [5]
+ * Gating all clocks for FIMD0
+ */
+ cfg = readl(&clk->gate_ip_lcd0);
+ cfg |= 1 << 0;
+ writel(cfg, &clk->gate_ip_lcd0);
+
+ /*
+ * CLK_DIV_LCD0
+ * FIMD0_RATIO [3:0]
+ * MDNIE0_RATIO [7:4]
+ * MDNIE_PWM0_RATIO [11:8]
+ * MDNIE_PWM_PRE_RATIO [15:12]
+ * MIPI0_RATIO [19:16]
+ * MIPI0_PRE_RATIO [23:20]
+ * set fimd ratio
+ */
+ cfg &= ~(0xf);
+ cfg |= 0x1;
+ writel(cfg, &clk->div_lcd0);
+}
+
+void exynos4_set_mipi_clk(void)
+{
+ struct exynos4_clock *clk =
+ (struct exynos4_clock *)samsung_get_base_clock();
+ unsigned int cfg = 0;
+
+ /*
+ * CLK_SRC_LCD0
+ * FIMD0_SEL [3:0]
+ * MDNIE0_SEL [7:4]
+ * MDNIE_PWM0_SEL [8:11]
+ * MIPI0_SEL [12:15]
+ * set mipi0 src clock 0x6: SCLK_MPLL
+ */
+ cfg = readl(&clk->src_lcd0);
+ cfg &= ~(0xf << 12);
+ cfg |= (0x6 << 12);
+ writel(cfg, &clk->src_lcd0);
+
+ /*
+ * CLK_SRC_MASK_LCD0
+ * FIMD0_MASK [0]
+ * MDNIE0_MASK [4]
+ * MDNIE_PWM0_MASK [8]
+ * MIPI0_MASK [12]
+ * set src mask mipi0 0x1: Unmask
+ */
+ cfg = readl(&clk->src_mask_lcd0);
+ cfg |= (0x1 << 12);
+ writel(cfg, &clk->src_mask_lcd0);
+
+ /*
+ * CLK_GATE_IP_LCD0
+ * CLK_FIMD0 [0]
+ * CLK_MIE0 [1]
+ * CLK_MDNIE0 [2]
+ * CLK_DSIM0 [3]
+ * CLK_SMMUFIMD0 [4]
+ * CLK_PPMULCD0 [5]
+ * Gating all clocks for MIPI0
+ */
+ cfg = readl(&clk->gate_ip_lcd0);
+ cfg |= 1 << 3;
+ writel(cfg, &clk->gate_ip_lcd0);
+
+ /*
+ * CLK_DIV_LCD0
+ * FIMD0_RATIO [3:0]
+ * MDNIE0_RATIO [7:4]
+ * MDNIE_PWM0_RATIO [11:8]
+ * MDNIE_PWM_PRE_RATIO [15:12]
+ * MIPI0_RATIO [19:16]
+ * MIPI0_PRE_RATIO [23:20]
+ * set mipi ratio
+ */
+ cfg &= ~(0xf << 16);
+ cfg |= (0x1 << 16);
+ writel(cfg, &clk->div_lcd0);
+}
+
unsigned long get_pll_clk(int pllreg)
{
- return exynos4_get_pll_clk(pllreg);
+ if (cpu_is_exynos5())
+ return exynos5_get_pll_clk(pllreg);
+ else
+ return exynos4_get_pll_clk(pllreg);
}
unsigned long get_arm_clk(void)
{
- return exynos4_get_arm_clk();
+ if (cpu_is_exynos5())
+ return exynos5_get_arm_clk();
+ else
+ return exynos4_get_arm_clk();
}
unsigned long get_pwm_clk(void)
{
- return exynos4_get_pwm_clk();
+ if (cpu_is_exynos5())
+ return exynos5_get_pwm_clk();
+ else
+ return exynos4_get_pwm_clk();
}
unsigned long get_uart_clk(int dev_index)
{
- return exynos4_get_uart_clk(dev_index);
+ if (cpu_is_exynos5())
+ return exynos5_get_uart_clk(dev_index);
+ else
+ return exynos4_get_uart_clk(dev_index);
}
void set_mmc_clk(int dev_index, unsigned int div)
{
- exynos4_set_mmc_clk(dev_index, div);
+ if (cpu_is_exynos5())
+ exynos5_set_mmc_clk(dev_index, div);
+ else
+ exynos4_set_mmc_clk(dev_index, div);
+}
+
+unsigned long get_lcd_clk(void)
+{
+ if (cpu_is_exynos4())
+ return exynos4_get_lcd_clk();
+ else
+ return 0;
+}
+
+void set_lcd_clk(void)
+{
+ if (cpu_is_exynos4())
+ exynos4_set_lcd_clk();
+}
+
+void set_mipi_clk(void)
+{
+ if (cpu_is_exynos4())
+ exynos4_set_mipi_clk();
}
projects / u-boot / blobdiff