* positions of the peripheral clocks of the src and div registers
*/
struct clk_bit_info {
+ enum periph_id id;
int8_t src_bit;
int8_t div_bit;
int8_t prediv_bit;
};
-/* src_bit div_bit prediv_bit */
-static struct clk_bit_info clk_bit_info[PERIPH_ID_COUNT] = {
- {0, 0, -1},
- {4, 4, -1},
- {8, 8, -1},
- {12, 12, -1},
- {0, 0, 8},
- {4, 16, 24},
- {8, 0, 8},
- {12, 16, 24},
- {-1, -1, -1},
- {16, 0, 8},
- {20, 16, 24},
- {24, 0, 8},
- {0, 0, 4},
- {4, 12, 16},
- {-1, -1, -1},
- {-1, -1, -1},
- {-1, 24, 0},
- {-1, 24, 0},
- {-1, 24, 0},
- {-1, 24, 0},
- {-1, 24, 0},
- {-1, 24, 0},
- {-1, 24, 0},
- {-1, 24, 0},
- {24, 0, -1},
- {24, 0, -1},
- {24, 0, -1},
- {24, 0, -1},
- {24, 0, -1},
+/* periph_id src_bit div_bit prediv_bit */
+static struct clk_bit_info exynos5_bit_info[] = {
+ {PERIPH_ID_UART0, 0, 0, -1},
+ {PERIPH_ID_UART1, 4, 4, -1},
+ {PERIPH_ID_UART2, 8, 8, -1},
+ {PERIPH_ID_UART3, 12, 12, -1},
+ {PERIPH_ID_I2C0, -1, 24, 0},
+ {PERIPH_ID_I2C1, -1, 24, 0},
+ {PERIPH_ID_I2C2, -1, 24, 0},
+ {PERIPH_ID_I2C3, -1, 24, 0},
+ {PERIPH_ID_I2C4, -1, 24, 0},
+ {PERIPH_ID_I2C5, -1, 24, 0},
+ {PERIPH_ID_I2C6, -1, 24, 0},
+ {PERIPH_ID_I2C7, -1, 24, 0},
+ {PERIPH_ID_SPI0, 16, 0, 8},
+ {PERIPH_ID_SPI1, 20, 16, 24},
+ {PERIPH_ID_SPI2, 24, 0, 8},
+ {PERIPH_ID_SDMMC0, 0, 0, 8},
+ {PERIPH_ID_SDMMC1, 4, 16, 24},
+ {PERIPH_ID_SDMMC2, 8, 0, 8},
+ {PERIPH_ID_SDMMC3, 12, 16, 24},
+ {PERIPH_ID_I2S0, 0, 0, 4},
+ {PERIPH_ID_I2S1, 4, 12, 16},
+ {PERIPH_ID_SPI3, 0, 0, 4},
+ {PERIPH_ID_SPI4, 4, 12, 16},
+ {PERIPH_ID_SDMMC4, 16, 0, 8},
+ {PERIPH_ID_PWM0, 24, 0, -1},
+ {PERIPH_ID_PWM1, 24, 0, -1},
+ {PERIPH_ID_PWM2, 24, 0, -1},
+ {PERIPH_ID_PWM3, 24, 0, -1},
+ {PERIPH_ID_PWM4, 24, 0, -1},
+
+ {PERIPH_ID_NONE, -1, -1, -1},
+};
+
+static struct clk_bit_info exynos542x_bit_info[] = {
+ {PERIPH_ID_UART0, 4, 8, -1},
+ {PERIPH_ID_UART1, 8, 12, -1},
+ {PERIPH_ID_UART2, 12, 16, -1},
+ {PERIPH_ID_UART3, 16, 20, -1},
+ {PERIPH_ID_I2C0, -1, 8, -1},
+ {PERIPH_ID_I2C1, -1, 8, -1},
+ {PERIPH_ID_I2C2, -1, 8, -1},
+ {PERIPH_ID_I2C3, -1, 8, -1},
+ {PERIPH_ID_I2C4, -1, 8, -1},
+ {PERIPH_ID_I2C5, -1, 8, -1},
+ {PERIPH_ID_I2C6, -1, 8, -1},
+ {PERIPH_ID_I2C7, -1, 8, -1},
+ {PERIPH_ID_SPI0, 20, 20, 8},
+ {PERIPH_ID_SPI1, 24, 24, 16},
+ {PERIPH_ID_SPI2, 28, 28, 24},
+ {PERIPH_ID_SDMMC0, 8, 0, -1},
+ {PERIPH_ID_SDMMC1, 12, 10, -1},
+ {PERIPH_ID_SDMMC2, 16, 20, -1},
+ {PERIPH_ID_I2C8, -1, 8, -1},
+ {PERIPH_ID_I2C9, -1, 8, -1},
+ {PERIPH_ID_I2S0, 0, 0, 4},
+ {PERIPH_ID_I2S1, 4, 12, 16},
+ {PERIPH_ID_SPI3, 12, 16, 0},
+ {PERIPH_ID_SPI4, 16, 20, 8},
+ {PERIPH_ID_PWM0, 24, 28, -1},
+ {PERIPH_ID_PWM1, 24, 28, -1},
+ {PERIPH_ID_PWM2, 24, 28, -1},
+ {PERIPH_ID_PWM3, 24, 28, -1},
+ {PERIPH_ID_PWM4, 24, 28, -1},
+ {PERIPH_ID_I2C10, -1, 8, -1},
+
+ {PERIPH_ID_NONE, -1, -1, -1},
};
/* Epll Clock division values to achive different frequency output */
* VPLL_CON: MIDV [24:16]
* BPLL_CON: MIDV [25:16]: Exynos5
*/
- if (pllreg == APLL || pllreg == MPLL || pllreg == BPLL)
+ if (pllreg == APLL || pllreg == MPLL || pllreg == BPLL ||
+ pllreg == SPLL)
mask = 0x3ff;
else
mask = 0x1ff;
freq = CONFIG_SYS_CLK_FREQ;
- if (pllreg == EPLL) {
+ if (pllreg == EPLL || pllreg == RPLL) {
k = k & 0xffff;
/* FOUT = (MDIV + K / 65536) * FIN / (PDIV * 2^SDIV) */
fout = (m + k / PLL_DIV_65536) * (freq / (p * (1 << s)));
div = PLL_DIV_1024;
else if (proid_is_exynos4412())
div = PLL_DIV_65535;
- else if (proid_is_exynos5250())
+ else if (proid_is_exynos5250() || proid_is_exynos5420()
+ || proid_is_exynos5800())
div = PLL_DIV_65536;
else
return 0;
return fout;
}
+/* exynos542x: return pll clock frequency */
+static unsigned long exynos542x_get_pll_clk(int pllreg)
+{
+ struct exynos5420_clock *clk =
+ (struct exynos5420_clock *)samsung_get_base_clock();
+ unsigned long r, k = 0;
+
+ 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;
+ case BPLL:
+ r = readl(&clk->bpll_con0);
+ break;
+ case RPLL:
+ r = readl(&clk->rpll_con0);
+ k = readl(&clk->rpll_con1);
+ break;
+ case SPLL:
+ r = readl(&clk->spll_con0);
+ break;
+ default:
+ printf("Unsupported PLL (%d)\n", pllreg);
+ return 0;
+ }
+
+ return exynos_get_pll_clk(pllreg, r, k);
+}
+
+static struct clk_bit_info *get_clk_bit_info(int peripheral)
+{
+ int i;
+ struct clk_bit_info *info;
+
+ if (proid_is_exynos5420() || proid_is_exynos5800())
+ info = exynos542x_bit_info;
+ else
+ info = exynos5_bit_info;
+
+ for (i = 0; info[i].id != PERIPH_ID_NONE; i++) {
+ if (info[i].id == peripheral)
+ break;
+ }
+
+ if (info[i].id == PERIPH_ID_NONE)
+ debug("ERROR: Peripheral ID %d not found\n", peripheral);
+
+ return &info[i];
+}
+
static unsigned long exynos5_get_periph_rate(int peripheral)
{
- struct clk_bit_info *bit_info = &clk_bit_info[peripheral];
- unsigned long sclk, sub_clk;
- unsigned int src, div, sub_div;
+ struct clk_bit_info *bit_info = get_clk_bit_info(peripheral);
+ unsigned long sclk, sub_clk = 0;
+ unsigned int src, div, sub_div = 0;
struct exynos5_clock *clk =
(struct exynos5_clock *)samsung_get_base_clock();
break;
case PERIPH_ID_SDMMC0:
case PERIPH_ID_SDMMC1:
+ src = readl(&clk->src_fsys);
+ div = readl(&clk->div_fsys1);
+ break;
case PERIPH_ID_SDMMC2:
case PERIPH_ID_SDMMC3:
src = readl(&clk->src_fsys);
- div = readl(&clk->div_fsys1);
+ div = readl(&clk->div_fsys2);
break;
case PERIPH_ID_I2C0:
case PERIPH_ID_I2C1:
return -1;
};
- src = (src >> bit_info->src_bit) & 0xf;
+ if (bit_info->src_bit >= 0)
+ src = (src >> bit_info->src_bit) & 0xf;
switch (src) {
case EXYNOS_SRC_MPLL:
}
/* Ratio clock division for this peripheral */
- sub_div = (div >> bit_info->div_bit) & 0xf;
- sub_clk = sclk / (sub_div + 1);
+ if (bit_info->div_bit >= 0) {
+ sub_div = (div >> bit_info->div_bit) & 0xf;
+ sub_clk = sclk / (sub_div + 1);
+ }
- /* Pre-ratio clock division for SDMMC0 and 2 */
- if (peripheral == PERIPH_ID_SDMMC0 || peripheral == PERIPH_ID_SDMMC2) {
+ if (bit_info->prediv_bit >= 0) {
div = (div >> bit_info->prediv_bit) & 0xff;
return sub_clk / (div + 1);
}
return sub_clk;
}
+static unsigned long exynos542x_get_periph_rate(int peripheral)
+{
+ struct clk_bit_info *bit_info = get_clk_bit_info(peripheral);
+ unsigned long sclk, sub_clk = 0;
+ unsigned int src, div, sub_div = 0;
+ struct exynos5420_clock *clk =
+ (struct exynos5420_clock *)samsung_get_base_clock();
+
+ switch (peripheral) {
+ case PERIPH_ID_UART0:
+ case PERIPH_ID_UART1:
+ case PERIPH_ID_UART2:
+ case PERIPH_ID_UART3:
+ case PERIPH_ID_PWM0:
+ case PERIPH_ID_PWM1:
+ case PERIPH_ID_PWM2:
+ case PERIPH_ID_PWM3:
+ case PERIPH_ID_PWM4:
+ src = readl(&clk->src_peric0);
+ div = readl(&clk->div_peric0);
+ break;
+ case PERIPH_ID_SPI0:
+ case PERIPH_ID_SPI1:
+ case PERIPH_ID_SPI2:
+ src = readl(&clk->src_peric1);
+ div = readl(&clk->div_peric1);
+ sub_div = readl(&clk->div_peric4);
+ break;
+ case PERIPH_ID_SPI3:
+ case PERIPH_ID_SPI4:
+ src = readl(&clk->src_isp);
+ div = readl(&clk->div_isp1);
+ sub_div = readl(&clk->div_isp1);
+ break;
+ case PERIPH_ID_SDMMC0:
+ case PERIPH_ID_SDMMC1:
+ case PERIPH_ID_SDMMC2:
+ case PERIPH_ID_SDMMC3:
+ src = readl(&clk->src_fsys);
+ div = readl(&clk->div_fsys1);
+ break;
+ case PERIPH_ID_I2C0:
+ case PERIPH_ID_I2C1:
+ case PERIPH_ID_I2C2:
+ case PERIPH_ID_I2C3:
+ case PERIPH_ID_I2C4:
+ case PERIPH_ID_I2C5:
+ case PERIPH_ID_I2C6:
+ case PERIPH_ID_I2C7:
+ case PERIPH_ID_I2C8:
+ case PERIPH_ID_I2C9:
+ case PERIPH_ID_I2C10:
+ sclk = exynos542x_get_pll_clk(MPLL);
+ sub_div = ((readl(&clk->div_top1) >> bit_info->div_bit)
+ & 0x7) + 1;
+ return sclk / sub_div;
+ default:
+ debug("%s: invalid peripheral %d", __func__, peripheral);
+ return -1;
+ };
+
+ if (bit_info->src_bit >= 0)
+ src = (src >> bit_info->src_bit) & 0xf;
+
+ switch (src) {
+ case EXYNOS542X_SRC_MPLL:
+ sclk = exynos542x_get_pll_clk(MPLL);
+ break;
+ case EXYNOS542X_SRC_SPLL:
+ sclk = exynos542x_get_pll_clk(SPLL);
+ break;
+ case EXYNOS542X_SRC_EPLL:
+ sclk = exynos542x_get_pll_clk(EPLL);
+ break;
+ case EXYNOS542X_SRC_RPLL:
+ sclk = exynos542x_get_pll_clk(RPLL);
+ break;
+ default:
+ return 0;
+ }
+
+ /* Ratio clock division for this peripheral */
+ if (bit_info->div_bit >= 0) {
+ div = (div >> bit_info->div_bit) & 0xf;
+ sub_clk = sclk / (div + 1);
+ }
+
+ if (bit_info->prediv_bit >= 0) {
+ sub_div = (sub_div >> bit_info->prediv_bit) & 0xff;
+ return sub_clk / (sub_div + 1);
+ }
+
+ return sub_clk;
+}
+
unsigned long clock_get_periph_rate(int peripheral)
{
- if (cpu_is_exynos5())
+ if (cpu_is_exynos5()) {
+ if (proid_is_exynos5420() || proid_is_exynos5800())
+ return exynos542x_get_periph_rate(peripheral);
return exynos5_get_periph_rate(peripheral);
- else
+ } else {
return 0;
+ }
}
/* exynos4: return ARM clock frequency */
return pclk;
}
+/* exynos5420: return pwm clock frequency */
+static unsigned long exynos5420_get_pwm_clk(void)
+{
+ struct exynos5420_clock *clk =
+ (struct exynos5420_clock *)samsung_get_base_clock();
+ unsigned long pclk, sclk;
+ unsigned int ratio;
+
+ /*
+ * CLK_DIV_PERIC0
+ * PWM_RATIO [31:28]
+ */
+ ratio = readl(&clk->div_peric0);
+ ratio = (ratio >> 28) & 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;
}
+/* exynos5420: return uart clock frequency */
+static unsigned long exynos5420_get_uart_clk(int dev_index)
+{
+ struct exynos5420_clock *clk =
+ (struct exynos5420_clock *)samsung_get_base_clock();
+ unsigned long uclk, sclk;
+ unsigned int sel;
+ unsigned int ratio;
+
+ /*
+ * CLK_SRC_PERIC0
+ * UART0_SEL [6:4]
+ * UART1_SEL [10:8]
+ * UART2_SEL [14:12]
+ * UART3_SEL [18:16]
+ * generalised calculation as follows
+ * sel = (sel >> ((dev_index * 4) + 4)) & mask;
+ */
+ sel = readl(&clk->src_peric0);
+ sel = (sel >> ((dev_index * 4) + 4)) & 0x7;
+
+ if (sel == 0x3)
+ sclk = get_pll_clk(MPLL);
+ else if (sel == 0x6)
+ sclk = get_pll_clk(EPLL);
+ else if (sel == 0x7)
+ sclk = get_pll_clk(RPLL);
+ else
+ return 0;
+
+ /*
+ * CLK_DIV_PERIC0
+ * UART0_RATIO [11:8]
+ * UART1_RATIO [15:12]
+ * UART2_RATIO [19:16]
+ * UART3_RATIO [23:20]
+ * generalised calculation as follows
+ * ratio = (ratio >> ((dev_index * 4) + 8)) & mask;
+ */
+ ratio = readl(&clk->div_peric0);
+ ratio = (ratio >> ((dev_index * 4) + 8)) & 0xf;
+
+ uclk = sclk / (ratio + 1);
+
+ return uclk;
+}
+
static unsigned long exynos4_get_mmc_clk(int dev_index)
{
struct exynos4_clock *clk =
return uclk;
}
+static unsigned long exynos5420_get_mmc_clk(int dev_index)
+{
+ struct exynos5420_clock *clk =
+ (struct exynos5420_clock *)samsung_get_base_clock();
+ unsigned long uclk, sclk;
+ unsigned int sel, ratio;
+
+ /*
+ * CLK_SRC_FSYS
+ * MMC0_SEL [10:8]
+ * MMC1_SEL [14:12]
+ * MMC2_SEL [18:16]
+ * generalised calculation as follows
+ * sel = (sel >> ((dev_index * 4) + 8)) & mask
+ */
+ sel = readl(&clk->src_fsys);
+ sel = (sel >> ((dev_index * 4) + 8)) & 0x7;
+
+ if (sel == 0x3)
+ sclk = get_pll_clk(MPLL);
+ else if (sel == 0x4)
+ sclk = get_pll_clk(SPLL);
+ else if (sel == 0x6)
+ sclk = get_pll_clk(EPLL);
+ else
+ return 0;
+
+ /*
+ * CLK_DIV_FSYS1
+ * MMC0_RATIO [9:0]
+ * MMC1_RATIO [19:10]
+ * MMC2_RATIO [29:20]
+ * generalised calculation as follows
+ * ratio = (ratio >> (dev_index * 10)) & mask
+ */
+ ratio = readl(&clk->div_fsys1);
+ ratio = (ratio >> (dev_index * 10)) & 0x3ff;
+
+ uclk = (sclk / (ratio + 1));
+
+ return uclk;
+}
+
/* exynos4: set the mmc clock */
static void exynos4_set_mmc_clk(int dev_index, unsigned int div)
{
struct exynos4_clock *clk =
(struct exynos4_clock *)samsung_get_base_clock();
- unsigned int addr;
- unsigned int val;
+ unsigned int addr, clear_bit, set_bit;
/*
* CLK_DIV_FSYS1
* CLK_DIV_FSYS2
* MMC2_PRE_RATIO [15:8], MMC3_PRE_RATIO [31:24]
* CLK_DIV_FSYS3
- * MMC4_PRE_RATIO [15:8]
+ * MMC4_RATIO [3:0]
*/
if (dev_index < 2) {
addr = (unsigned int)&clk->div_fsys1;
- } else if (dev_index == 4) {
+ clear_bit = MASK_PRE_RATIO(dev_index);
+ set_bit = SET_PRE_RATIO(dev_index, div);
+ } else if (dev_index == 4) {
addr = (unsigned int)&clk->div_fsys3;
dev_index -= 4;
+ /* MMC4 is controlled with the MMC4_RATIO value */
+ clear_bit = MASK_RATIO(dev_index);
+ set_bit = SET_RATIO(dev_index, div);
} else {
addr = (unsigned int)&clk->div_fsys2;
dev_index -= 2;
+ clear_bit = MASK_PRE_RATIO(dev_index);
+ set_bit = SET_PRE_RATIO(dev_index, div);
}
- val = readl(addr);
- val &= ~(0xff << ((dev_index << 4) + 8));
- val |= (div & 0xff) << ((dev_index << 4) + 8);
- writel(val, addr);
+ clrsetbits_le32(addr, clear_bit, set_bit);
}
-/* exynos4x12: set the mmc clock */
-static void exynos4x12_set_mmc_clk(int dev_index, unsigned int div)
+/* exynos5: set the mmc clock */
+static void exynos5_set_mmc_clk(int dev_index, unsigned int div)
{
- struct exynos4x12_clock *clk =
- (struct exynos4x12_clock *)samsung_get_base_clock();
+ struct exynos5_clock *clk =
+ (struct exynos5_clock *)samsung_get_base_clock();
unsigned int addr;
- unsigned int val;
/*
* CLK_DIV_FSYS1
dev_index -= 2;
}
- val = readl(addr);
- val &= ~(0xff << ((dev_index << 4) + 8));
- val |= (div & 0xff) << ((dev_index << 4) + 8);
- writel(val, addr);
+ clrsetbits_le32(addr, 0xff << ((dev_index << 4) + 8),
+ (div & 0xff) << ((dev_index << 4) + 8));
}
/* exynos5: set the mmc clock */
-static void exynos5_set_mmc_clk(int dev_index, unsigned int div)
+static void exynos5420_set_mmc_clk(int dev_index, unsigned int div)
{
- struct exynos5_clock *clk =
- (struct exynos5_clock *)samsung_get_base_clock();
+ struct exynos5420_clock *clk =
+ (struct exynos5420_clock *)samsung_get_base_clock();
unsigned int addr;
- unsigned int val;
+ unsigned int shift;
/*
* 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]
+ * MMC0_RATIO [9:0]
+ * MMC1_RATIO [19:10]
+ * MMC2_RATIO [29:20]
*/
- if (dev_index < 2) {
- addr = (unsigned int)&clk->div_fsys1;
- } else {
- addr = (unsigned int)&clk->div_fsys2;
- dev_index -= 2;
- }
+ addr = (unsigned int)&clk->div_fsys1;
+ shift = dev_index * 10;
- val = readl(addr);
- val &= ~(0xff << ((dev_index << 4) + 8));
- val |= (div & 0xff) << ((dev_index << 4) + 8);
- writel(val, addr);
+ clrsetbits_le32(addr, 0x3ff << shift, (div & 0x3ff) << shift);
}
/* get_lcd_clk: return lcd clock frequency */
return pclk;
}
+static unsigned long exynos5420_get_lcd_clk(void)
+{
+ struct exynos5420_clock *clk =
+ (struct exynos5420_clock *)samsung_get_base_clock();
+ unsigned long pclk, sclk;
+ unsigned int sel;
+ unsigned int ratio;
+
+ /*
+ * CLK_SRC_DISP10
+ * FIMD1_SEL [4]
+ * 0: SCLK_RPLL
+ * 1: SCLK_SPLL
+ */
+ sel = readl(&clk->src_disp10);
+ sel &= (1 << 4);
+
+ if (sel)
+ sclk = get_pll_clk(SPLL);
+ else
+ sclk = get_pll_clk(RPLL);
+
+ /*
+ * CLK_DIV_DISP10
+ * FIMD1_RATIO [3:0]
+ */
+ ratio = readl(&clk->div_disp10);
+ 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_LCD1 [5]
* CLK_GPS [7]
*/
- cfg = readl(&clk->gate_block);
- cfg |= 1 << 4;
- writel(cfg, &clk->gate_block);
+ setbits_le32(&clk->gate_block, 1 << 4);
/*
* CLK_SRC_LCD0
* 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);
+ clrsetbits_le32(&clk->src_lcd0, 0xf, 0x6);
/*
* CLK_GATE_IP_LCD0
* CLK_PPMULCD0 [5]
* Gating all clocks for FIMD0
*/
- cfg = readl(&clk->gate_ip_lcd0);
- cfg |= 1 << 0;
- writel(cfg, &clk->gate_ip_lcd0);
+ setbits_le32(&clk->gate_ip_lcd0, 1 << 0);
/*
* CLK_DIV_LCD0
* MIPI0_PRE_RATIO [23:20]
* set fimd ratio
*/
- cfg &= ~(0xf);
- cfg |= 0x1;
- writel(cfg, &clk->div_lcd0);
+ clrsetbits_le32(&clk->div_lcd0, 0xf, 0x1);
}
void exynos5_set_lcd_clk(void)
{
struct exynos5_clock *clk =
(struct exynos5_clock *)samsung_get_base_clock();
- unsigned int cfg = 0;
/*
* CLK_GATE_BLOCK
* CLK_LCD1 [5]
* CLK_GPS [7]
*/
- cfg = readl(&clk->gate_block);
- cfg |= 1 << 4;
- writel(cfg, &clk->gate_block);
+ setbits_le32(&clk->gate_block, 1 << 4);
/*
* CLK_SRC_LCD0
* MIPI0_SEL [12:15]
* set lcd0 src clock 0x6: SCLK_MPLL
*/
- cfg = readl(&clk->src_disp1_0);
- cfg &= ~(0xf);
- cfg |= 0x6;
- writel(cfg, &clk->src_disp1_0);
+ clrsetbits_le32(&clk->src_disp1_0, 0xf, 0x6);
/*
* CLK_GATE_IP_LCD0
* CLK_PPMULCD0 [5]
* Gating all clocks for FIMD0
*/
- cfg = readl(&clk->gate_ip_disp1);
- cfg |= 1 << 0;
- writel(cfg, &clk->gate_ip_disp1);
+ setbits_le32(&clk->gate_ip_disp1, 1 << 0);
/*
* CLK_DIV_LCD0
* MIPI0_PRE_RATIO [23:20]
* set fimd ratio
*/
- cfg &= ~(0xf);
- cfg |= 0x0;
- writel(cfg, &clk->div_disp1_0);
+ clrsetbits_le32(&clk->div_disp1_0, 0xf, 0x0);
+}
+
+void exynos5420_set_lcd_clk(void)
+{
+ struct exynos5420_clock *clk =
+ (struct exynos5420_clock *)samsung_get_base_clock();
+ unsigned int cfg;
+
+ /*
+ * CLK_SRC_DISP10
+ * FIMD1_SEL [4]
+ * 0: SCLK_RPLL
+ * 1: SCLK_SPLL
+ */
+ cfg = readl(&clk->src_disp10);
+ cfg &= ~(0x1 << 4);
+ cfg |= (0 << 4);
+ writel(cfg, &clk->src_disp10);
+
+ /*
+ * CLK_DIV_DISP10
+ * FIMD1_RATIO [3:0]
+ */
+ cfg = readl(&clk->div_disp10);
+ cfg &= ~(0xf << 0);
+ cfg |= (0 << 0);
+ writel(cfg, &clk->div_disp10);
}
void exynos4_set_mipi_clk(void)
{
struct exynos4_clock *clk =
(struct exynos4_clock *)samsung_get_base_clock();
- unsigned int cfg = 0;
/*
* CLK_SRC_LCD0
* 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);
+ clrsetbits_le32(&clk->src_lcd0, 0xf << 12, 0x6 << 12);
/*
* CLK_SRC_MASK_LCD0
* MIPI0_MASK [12]
* set src mask mipi0 0x1: Unmask
*/
- cfg = readl(&clk->src_mask_lcd0);
- cfg |= (0x1 << 12);
- writel(cfg, &clk->src_mask_lcd0);
+ setbits_le32(&clk->src_mask_lcd0, 0x1 << 12);
/*
* CLK_GATE_IP_LCD0
* CLK_PPMULCD0 [5]
* Gating all clocks for MIPI0
*/
- cfg = readl(&clk->gate_ip_lcd0);
- cfg |= 1 << 3;
- writel(cfg, &clk->gate_ip_lcd0);
+ setbits_le32(&clk->gate_ip_lcd0, 1 << 3);
/*
* CLK_DIV_LCD0
* MIPI0_PRE_RATIO [23:20]
* set mipi ratio
*/
- cfg &= ~(0xf << 16);
- cfg |= (0x1 << 16);
- writel(cfg, &clk->div_lcd0);
+ clrsetbits_le32(&clk->div_lcd0, 0xf << 16, 0x1 << 16);
}
/*
return 1;
for (i = 1; i <= loops; i++) {
- const unsigned int effective_div = max(min(input_rate / i /
- target_rate, cap), 1);
+ const unsigned int effective_div =
+ max(min(input_rate / i / target_rate, cap), 1U);
const unsigned int effective_rate = input_rate / i /
effective_div;
const int error = target_rate - effective_rate;
return 0;
}
+static int exynos5420_set_spi_clk(enum periph_id periph_id,
+ unsigned int rate)
+{
+ struct exynos5420_clock *clk =
+ (struct exynos5420_clock *)samsung_get_base_clock();
+ int main;
+ unsigned int fine;
+ unsigned shift, pre_shift;
+ unsigned div_mask = 0xf, pre_div_mask = 0xff;
+ u32 *reg;
+ u32 *pre_reg;
+
+ main = clock_calc_best_scalar(4, 8, 400000000, rate, &fine);
+ if (main < 0) {
+ debug("%s: Cannot set clock rate for periph %d",
+ __func__, periph_id);
+ return -1;
+ }
+ main = main - 1;
+ fine = fine - 1;
+
+ switch (periph_id) {
+ case PERIPH_ID_SPI0:
+ reg = &clk->div_peric1;
+ shift = 20;
+ pre_reg = &clk->div_peric4;
+ pre_shift = 8;
+ break;
+ case PERIPH_ID_SPI1:
+ reg = &clk->div_peric1;
+ shift = 24;
+ pre_reg = &clk->div_peric4;
+ pre_shift = 16;
+ break;
+ case PERIPH_ID_SPI2:
+ reg = &clk->div_peric1;
+ shift = 28;
+ pre_reg = &clk->div_peric4;
+ pre_shift = 24;
+ break;
+ case PERIPH_ID_SPI3:
+ reg = &clk->div_isp1;
+ shift = 16;
+ pre_reg = &clk->div_isp1;
+ pre_shift = 0;
+ break;
+ case PERIPH_ID_SPI4:
+ reg = &clk->div_isp1;
+ shift = 20;
+ pre_reg = &clk->div_isp1;
+ pre_shift = 8;
+ break;
+ default:
+ debug("%s: Unsupported peripheral ID %d\n", __func__,
+ periph_id);
+ return -1;
+ }
+
+ clrsetbits_le32(reg, div_mask << shift, (main & div_mask) << shift);
+ clrsetbits_le32(pre_reg, pre_div_mask << pre_shift,
+ (fine & pre_div_mask) << pre_shift);
+
+ return 0;
+}
+
static unsigned long exynos4_get_i2c_clk(void)
{
struct exynos4_clock *clk =
unsigned long get_pll_clk(int pllreg)
{
- if (cpu_is_exynos5())
+ if (cpu_is_exynos5()) {
+ if (proid_is_exynos5420() || proid_is_exynos5800())
+ return exynos542x_get_pll_clk(pllreg);
return exynos5_get_pll_clk(pllreg);
- else {
+ } else {
if (proid_is_exynos4412())
return exynos4x12_get_pll_clk(pllreg);
return exynos4_get_pll_clk(pllreg);
unsigned long get_pwm_clk(void)
{
- if (cpu_is_exynos5())
+ if (cpu_is_exynos5()) {
+ if (proid_is_exynos5420() || proid_is_exynos5800())
+ return exynos5420_get_pwm_clk();
return clock_get_periph_rate(PERIPH_ID_PWM0);
- else {
+ } else {
if (proid_is_exynos4412())
return exynos4x12_get_pwm_clk();
return exynos4_get_pwm_clk();
unsigned long get_uart_clk(int dev_index)
{
- if (cpu_is_exynos5())
+ if (cpu_is_exynos5()) {
+ if (proid_is_exynos5420() || proid_is_exynos5800())
+ return exynos5420_get_uart_clk(dev_index);
return exynos5_get_uart_clk(dev_index);
- else {
+ } else {
if (proid_is_exynos4412())
return exynos4x12_get_uart_clk(dev_index);
return exynos4_get_uart_clk(dev_index);
unsigned long get_mmc_clk(int dev_index)
{
- if (cpu_is_exynos5())
+ if (cpu_is_exynos5()) {
+ if (proid_is_exynos5420() || proid_is_exynos5800())
+ return exynos5420_get_mmc_clk(dev_index);
return exynos5_get_mmc_clk(dev_index);
- else
+ } else {
return exynos4_get_mmc_clk(dev_index);
+ }
}
void set_mmc_clk(int dev_index, unsigned int div)
{
- if (cpu_is_exynos5())
- exynos5_set_mmc_clk(dev_index, div);
- else {
- if (proid_is_exynos4412())
- exynos4x12_set_mmc_clk(dev_index, div);
+ /* If want to set correct value, it needs to substract one from div.*/
+ if (div > 0)
+ div -= 1;
+
+ if (cpu_is_exynos5()) {
+ if (proid_is_exynos5420() || proid_is_exynos5800())
+ exynos5420_set_mmc_clk(dev_index, div);
else
- exynos4_set_mmc_clk(dev_index, div);
+ exynos5_set_mmc_clk(dev_index, div);
+ } else {
+ exynos4_set_mmc_clk(dev_index, div);
}
}
{
if (cpu_is_exynos4())
return exynos4_get_lcd_clk();
- else
- return exynos5_get_lcd_clk();
+ else {
+ if (proid_is_exynos5420() || proid_is_exynos5800())
+ return exynos5420_get_lcd_clk();
+ else
+ return exynos5_get_lcd_clk();
+ }
}
void set_lcd_clk(void)
{
if (cpu_is_exynos4())
exynos4_set_lcd_clk();
- else
- exynos5_set_lcd_clk();
+ else {
+ if (proid_is_exynos5250())
+ exynos5_set_lcd_clk();
+ else if (proid_is_exynos5420() || proid_is_exynos5800())
+ exynos5420_set_lcd_clk();
+ }
}
void set_mipi_clk(void)
int set_spi_clk(int periph_id, unsigned int rate)
{
- if (cpu_is_exynos5())
+ if (cpu_is_exynos5()) {
+ if (proid_is_exynos5420() || proid_is_exynos5800())
+ return exynos5420_set_spi_clk(periph_id, rate);
return exynos5_set_spi_clk(periph_id, rate);
- else
+ } else {
return 0;
+ }
}
int set_i2s_clk_prescaler(unsigned int src_frq, unsigned int dst_frq,