config CPU_S5P6440
bool
- select CPU_S5P6440_INIT
- select CPU_S5P6440_CLOCK
help
Enable S5P6440 CPU support
# Core support for S5P6440 system
-obj-$(CONFIG_CPU_S5P6440) += cpu.o s5p6440-gpio.o
+obj-$(CONFIG_CPU_S5P6440) += cpu.o init.o clock.o gpio.o
# machine support
--- /dev/null
+/* linux/arch/arm/mach-s5p6440/clock.c
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * S5P6440 - Clock support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/sysdev.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <mach/map.h>
+
+#include <plat/cpu-freq.h>
+#include <mach/regs-clock.h>
+#include <plat/clock.h>
+#include <plat/cpu.h>
+#include <plat/clock-clksrc.h>
+#include <plat/s5p-clock.h>
+#include <plat/pll.h>
+#include <plat/s5p6440.h>
+
+/* APLL Mux output clock */
+static struct clksrc_clk clk_mout_apll = {
+ .clk = {
+ .name = "mout_apll",
+ .id = -1,
+ },
+ .sources = &clk_src_apll,
+ .reg_src = { .reg = S5P_CLK_SRC0, .shift = 0, .size = 1 },
+};
+
+static int s5p6440_epll_enable(struct clk *clk, int enable)
+{
+ unsigned int ctrlbit = clk->ctrlbit;
+ unsigned int epll_con = __raw_readl(S5P_EPLL_CON) & ~ctrlbit;
+
+ if (enable)
+ __raw_writel(epll_con | ctrlbit, S5P_EPLL_CON);
+ else
+ __raw_writel(epll_con, S5P_EPLL_CON);
+
+ return 0;
+}
+
+static unsigned long s5p6440_epll_get_rate(struct clk *clk)
+{
+ return clk->rate;
+}
+
+static u32 epll_div[][5] = {
+ { 36000000, 0, 48, 1, 4 },
+ { 48000000, 0, 32, 1, 3 },
+ { 60000000, 0, 40, 1, 3 },
+ { 72000000, 0, 48, 1, 3 },
+ { 84000000, 0, 28, 1, 2 },
+ { 96000000, 0, 32, 1, 2 },
+ { 32768000, 45264, 43, 1, 4 },
+ { 45158000, 6903, 30, 1, 3 },
+ { 49152000, 50332, 32, 1, 3 },
+ { 67738000, 10398, 45, 1, 3 },
+ { 73728000, 9961, 49, 1, 3 }
+};
+
+static int s5p6440_epll_set_rate(struct clk *clk, unsigned long rate)
+{
+ unsigned int epll_con, epll_con_k;
+ unsigned int i;
+
+ if (clk->rate == rate) /* Return if nothing changed */
+ return 0;
+
+ epll_con = __raw_readl(S5P_EPLL_CON);
+ epll_con_k = __raw_readl(S5P_EPLL_CON_K);
+
+ epll_con_k &= ~(PLL90XX_KDIV_MASK);
+ epll_con &= ~(PLL90XX_MDIV_MASK | PLL90XX_PDIV_MASK | PLL90XX_SDIV_MASK);
+
+ for (i = 0; i < ARRAY_SIZE(epll_div); i++) {
+ if (epll_div[i][0] == rate) {
+ epll_con_k |= (epll_div[i][1] << PLL90XX_KDIV_SHIFT);
+ epll_con |= (epll_div[i][2] << PLL90XX_MDIV_SHIFT) |
+ (epll_div[i][3] << PLL90XX_PDIV_SHIFT) |
+ (epll_div[i][4] << PLL90XX_SDIV_SHIFT);
+ break;
+ }
+ }
+
+ if (i == ARRAY_SIZE(epll_div)) {
+ printk(KERN_ERR "%s: Invalid Clock EPLL Frequency\n", __func__);
+ return -EINVAL;
+ }
+
+ __raw_writel(epll_con, S5P_EPLL_CON);
+ __raw_writel(epll_con_k, S5P_EPLL_CON_K);
+
+ clk->rate = rate;
+
+ return 0;
+}
+
+static struct clk_ops s5p6440_epll_ops = {
+ .get_rate = s5p6440_epll_get_rate,
+ .set_rate = s5p6440_epll_set_rate,
+};
+
+static struct clksrc_clk clk_mout_epll = {
+ .clk = {
+ .name = "mout_epll",
+ .id = -1,
+ },
+ .sources = &clk_src_epll,
+ .reg_src = { .reg = S5P_CLK_SRC0, .shift = 2, .size = 1 },
+};
+
+static struct clksrc_clk clk_mout_mpll = {
+ .clk = {
+ .name = "mout_mpll",
+ .id = -1,
+ },
+ .sources = &clk_src_mpll,
+ .reg_src = { .reg = S5P_CLK_SRC0, .shift = 1, .size = 1 },
+};
+
+static struct clk clk_h_low = {
+ .name = "hclk_low",
+ .id = -1,
+ .rate = 0,
+ .parent = NULL,
+ .ctrlbit = 0,
+ .ops = &clk_ops_def_setrate,
+};
+
+static struct clk clk_p_low = {
+ .name = "pclk_low",
+ .id = -1,
+ .rate = 0,
+ .parent = NULL,
+ .ctrlbit = 0,
+ .ops = &clk_ops_def_setrate,
+};
+
+enum perf_level {
+ L0 = 532*1000,
+ L1 = 266*1000,
+ L2 = 133*1000,
+};
+
+static const u32 clock_table[][3] = {
+ /*{ARM_CLK, DIVarm, DIVhclk}*/
+ {L0 * 1000, (0 << ARM_DIV_RATIO_SHIFT), (3 << S5P_CLKDIV0_HCLK_SHIFT)},
+ {L1 * 1000, (1 << ARM_DIV_RATIO_SHIFT), (1 << S5P_CLKDIV0_HCLK_SHIFT)},
+ {L2 * 1000, (3 << ARM_DIV_RATIO_SHIFT), (0 << S5P_CLKDIV0_HCLK_SHIFT)},
+};
+
+static unsigned long s5p6440_armclk_get_rate(struct clk *clk)
+{
+ unsigned long rate = clk_get_rate(clk->parent);
+ u32 clkdiv;
+
+ /* divisor mask starts at bit0, so no need to shift */
+ clkdiv = __raw_readl(ARM_CLK_DIV) & ARM_DIV_MASK;
+
+ return rate / (clkdiv + 1);
+}
+
+static unsigned long s5p6440_armclk_round_rate(struct clk *clk,
+ unsigned long rate)
+{
+ u32 iter;
+
+ for (iter = 1 ; iter < ARRAY_SIZE(clock_table) ; iter++) {
+ if (rate > clock_table[iter][0])
+ return clock_table[iter-1][0];
+ }
+
+ return clock_table[ARRAY_SIZE(clock_table) - 1][0];
+}
+
+static int s5p6440_armclk_set_rate(struct clk *clk, unsigned long rate)
+{
+ u32 round_tmp;
+ u32 iter;
+ u32 clk_div0_tmp;
+ u32 cur_rate = clk->ops->get_rate(clk);
+ unsigned long flags;
+
+ round_tmp = clk->ops->round_rate(clk, rate);
+ if (round_tmp == cur_rate)
+ return 0;
+
+
+ for (iter = 0 ; iter < ARRAY_SIZE(clock_table) ; iter++) {
+ if (round_tmp == clock_table[iter][0])
+ break;
+ }
+
+ if (iter >= ARRAY_SIZE(clock_table))
+ iter = ARRAY_SIZE(clock_table) - 1;
+
+ local_irq_save(flags);
+ if (cur_rate > round_tmp) {
+ /* Frequency Down */
+ clk_div0_tmp = __raw_readl(ARM_CLK_DIV) & ~(ARM_DIV_MASK);
+ clk_div0_tmp |= clock_table[iter][1];
+ __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
+
+ clk_div0_tmp = __raw_readl(ARM_CLK_DIV) &
+ ~(S5P_CLKDIV0_HCLK_MASK);
+ clk_div0_tmp |= clock_table[iter][2];
+ __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
+
+
+ } else {
+ /* Frequency Up */
+ clk_div0_tmp = __raw_readl(ARM_CLK_DIV) &
+ ~(S5P_CLKDIV0_HCLK_MASK);
+ clk_div0_tmp |= clock_table[iter][2];
+ __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
+
+ clk_div0_tmp = __raw_readl(ARM_CLK_DIV) & ~(ARM_DIV_MASK);
+ clk_div0_tmp |= clock_table[iter][1];
+ __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
+ }
+ local_irq_restore(flags);
+
+ clk->rate = clock_table[iter][0];
+
+ return 0;
+}
+
+static struct clk_ops s5p6440_clkarm_ops = {
+ .get_rate = s5p6440_armclk_get_rate,
+ .set_rate = s5p6440_armclk_set_rate,
+ .round_rate = s5p6440_armclk_round_rate,
+};
+
+static unsigned long s5p6440_clk_doutmpll_get_rate(struct clk *clk)
+{
+ unsigned long rate = clk_get_rate(clk->parent);
+
+ if (__raw_readl(S5P_CLK_DIV0) & S5P_CLKDIV0_MPLL_MASK)
+ rate /= 2;
+
+ return rate;
+}
+
+static struct clk clk_dout_mpll = {
+ .name = "dout_mpll",
+ .id = -1,
+ .parent = &clk_mout_mpll.clk,
+ .ops = &(struct clk_ops) {
+ .get_rate = s5p6440_clk_doutmpll_get_rate,
+ },
+};
+
+int s5p6440_clk48m_ctrl(struct clk *clk, int enable)
+{
+ unsigned long flags;
+ u32 val;
+
+ /* can't rely on clock lock, this register has other usages */
+ local_irq_save(flags);
+
+ val = __raw_readl(S5P_OTHERS);
+ if (enable)
+ val |= S5P_OTHERS_USB_SIG_MASK;
+ else
+ val &= ~S5P_OTHERS_USB_SIG_MASK;
+
+ __raw_writel(val, S5P_OTHERS);
+
+ local_irq_restore(flags);
+
+ return 0;
+}
+
+static int s5p6440_pclk_ctrl(struct clk *clk, int enable)
+{
+ return s5p_gatectrl(S5P_CLK_GATE_PCLK, clk, enable);
+}
+
+static int s5p6440_hclk0_ctrl(struct clk *clk, int enable)
+{
+ return s5p_gatectrl(S5P_CLK_GATE_HCLK0, clk, enable);
+}
+
+static int s5p6440_hclk1_ctrl(struct clk *clk, int enable)
+{
+ return s5p_gatectrl(S5P_CLK_GATE_HCLK1, clk, enable);
+}
+
+static int s5p6440_sclk_ctrl(struct clk *clk, int enable)
+{
+ return s5p_gatectrl(S5P_CLK_GATE_SCLK0, clk, enable);
+}
+
+static int s5p6440_mem_ctrl(struct clk *clk, int enable)
+{
+ return s5p_gatectrl(S5P_CLK_GATE_MEM0, clk, enable);
+}
+
+/*
+ * The following clocks will be disabled during clock initialization. It is
+ * recommended to keep the following clocks disabled until the driver requests
+ * for enabling the clock.
+ */
+static struct clk init_clocks_disable[] = {
+ {
+ .name = "nand",
+ .id = -1,
+ .parent = &clk_h,
+ .enable = s5p6440_mem_ctrl,
+ .ctrlbit = S5P_CLKCON_MEM0_HCLK_NFCON,
+ }, {
+ .name = "adc",
+ .id = -1,
+ .parent = &clk_p_low,
+ .enable = s5p6440_pclk_ctrl,
+ .ctrlbit = S5P_CLKCON_PCLK_TSADC,
+ }, {
+ .name = "i2c",
+ .id = -1,
+ .parent = &clk_p_low,
+ .enable = s5p6440_pclk_ctrl,
+ .ctrlbit = S5P_CLKCON_PCLK_IIC0,
+ }, {
+ .name = "i2s_v40",
+ .id = 0,
+ .parent = &clk_p_low,
+ .enable = s5p6440_pclk_ctrl,
+ .ctrlbit = S5P_CLKCON_PCLK_IIS2,
+ }, {
+ .name = "spi",
+ .id = 0,
+ .parent = &clk_p_low,
+ .enable = s5p6440_pclk_ctrl,
+ .ctrlbit = S5P_CLKCON_PCLK_SPI0,
+ }, {
+ .name = "spi",
+ .id = 1,
+ .parent = &clk_p_low,
+ .enable = s5p6440_pclk_ctrl,
+ .ctrlbit = S5P_CLKCON_PCLK_SPI1,
+ }, {
+ .name = "sclk_spi_48",
+ .id = 0,
+ .parent = &clk_48m,
+ .enable = s5p6440_sclk_ctrl,
+ .ctrlbit = S5P_CLKCON_SCLK0_SPI0_48,
+ }, {
+ .name = "sclk_spi_48",
+ .id = 1,
+ .parent = &clk_48m,
+ .enable = s5p6440_sclk_ctrl,
+ .ctrlbit = S5P_CLKCON_SCLK0_SPI1_48,
+ }, {
+ .name = "mmc_48m",
+ .id = 0,
+ .parent = &clk_48m,
+ .enable = s5p6440_sclk_ctrl,
+ .ctrlbit = S5P_CLKCON_SCLK0_MMC0_48,
+ }, {
+ .name = "mmc_48m",
+ .id = 1,
+ .parent = &clk_48m,
+ .enable = s5p6440_sclk_ctrl,
+ .ctrlbit = S5P_CLKCON_SCLK0_MMC1_48,
+ }, {
+ .name = "mmc_48m",
+ .id = 2,
+ .parent = &clk_48m,
+ .enable = s5p6440_sclk_ctrl,
+ .ctrlbit = S5P_CLKCON_SCLK0_MMC2_48,
+ }, {
+ .name = "otg",
+ .id = -1,
+ .parent = &clk_h_low,
+ .enable = s5p6440_hclk0_ctrl,
+ .ctrlbit = S5P_CLKCON_HCLK0_USB
+ }, {
+ .name = "post",
+ .id = -1,
+ .parent = &clk_h_low,
+ .enable = s5p6440_hclk0_ctrl,
+ .ctrlbit = S5P_CLKCON_HCLK0_POST0
+ }, {
+ .name = "lcd",
+ .id = -1,
+ .parent = &clk_h_low,
+ .enable = s5p6440_hclk1_ctrl,
+ .ctrlbit = S5P_CLKCON_HCLK1_DISPCON,
+ }, {
+ .name = "hsmmc",
+ .id = 0,
+ .parent = &clk_h_low,
+ .enable = s5p6440_hclk0_ctrl,
+ .ctrlbit = S5P_CLKCON_HCLK0_HSMMC0,
+ }, {
+ .name = "hsmmc",
+ .id = 1,
+ .parent = &clk_h_low,
+ .enable = s5p6440_hclk0_ctrl,
+ .ctrlbit = S5P_CLKCON_HCLK0_HSMMC1,
+ }, {
+ .name = "hsmmc",
+ .id = 2,
+ .parent = &clk_h_low,
+ .enable = s5p6440_hclk0_ctrl,
+ .ctrlbit = S5P_CLKCON_HCLK0_HSMMC2,
+ }, {
+ .name = "rtc",
+ .id = -1,
+ .parent = &clk_p_low,
+ .enable = s5p6440_pclk_ctrl,
+ .ctrlbit = S5P_CLKCON_PCLK_RTC,
+ }, {
+ .name = "watchdog",
+ .id = -1,
+ .parent = &clk_p_low,
+ .enable = s5p6440_pclk_ctrl,
+ .ctrlbit = S5P_CLKCON_PCLK_WDT,
+ }, {
+ .name = "timers",
+ .id = -1,
+ .parent = &clk_p_low,
+ .enable = s5p6440_pclk_ctrl,
+ .ctrlbit = S5P_CLKCON_PCLK_PWM,
+ }
+};
+
+/*
+ * The following clocks will be enabled during clock initialization.
+ */
+static struct clk init_clocks[] = {
+ {
+ .name = "gpio",
+ .id = -1,
+ .parent = &clk_p_low,
+ .enable = s5p6440_pclk_ctrl,
+ .ctrlbit = S5P_CLKCON_PCLK_GPIO,
+ }, {
+ .name = "uart",
+ .id = 0,
+ .parent = &clk_p_low,
+ .enable = s5p6440_pclk_ctrl,
+ .ctrlbit = S5P_CLKCON_PCLK_UART0,
+ }, {
+ .name = "uart",
+ .id = 1,
+ .parent = &clk_p_low,
+ .enable = s5p6440_pclk_ctrl,
+ .ctrlbit = S5P_CLKCON_PCLK_UART1,
+ }, {
+ .name = "uart",
+ .id = 2,
+ .parent = &clk_p_low,
+ .enable = s5p6440_pclk_ctrl,
+ .ctrlbit = S5P_CLKCON_PCLK_UART2,
+ }, {
+ .name = "uart",
+ .id = 3,
+ .parent = &clk_p_low,
+ .enable = s5p6440_pclk_ctrl,
+ .ctrlbit = S5P_CLKCON_PCLK_UART3,
+ }
+};
+
+static struct clk clk_iis_cd_v40 = {
+ .name = "iis_cdclk_v40",
+ .id = -1,
+};
+
+static struct clk clk_pcm_cd = {
+ .name = "pcm_cdclk",
+ .id = -1,
+};
+
+static struct clk *clkset_spi_mmc_list[] = {
+ &clk_mout_epll.clk,
+ &clk_dout_mpll,
+ &clk_fin_epll,
+};
+
+static struct clksrc_sources clkset_spi_mmc = {
+ .sources = clkset_spi_mmc_list,
+ .nr_sources = ARRAY_SIZE(clkset_spi_mmc_list),
+};
+
+static struct clk *clkset_uart_list[] = {
+ &clk_mout_epll.clk,
+ &clk_dout_mpll
+};
+
+static struct clksrc_sources clkset_uart = {
+ .sources = clkset_uart_list,
+ .nr_sources = ARRAY_SIZE(clkset_uart_list),
+};
+
+static struct clksrc_clk clksrcs[] = {
+ {
+ .clk = {
+ .name = "mmc_bus",
+ .id = 0,
+ .ctrlbit = S5P_CLKCON_SCLK0_MMC0,
+ .enable = s5p6440_sclk_ctrl,
+ },
+ .sources = &clkset_spi_mmc,
+ .reg_src = { .reg = S5P_CLK_SRC0, .shift = 18, .size = 2 },
+ .reg_div = { .reg = S5P_CLK_DIV1, .shift = 0, .size = 4 },
+ }, {
+ .clk = {
+ .name = "mmc_bus",
+ .id = 1,
+ .ctrlbit = S5P_CLKCON_SCLK0_MMC1,
+ .enable = s5p6440_sclk_ctrl,
+ },
+ .sources = &clkset_spi_mmc,
+ .reg_src = { .reg = S5P_CLK_SRC0, .shift = 20, .size = 2 },
+ .reg_div = { .reg = S5P_CLK_DIV1, .shift = 4, .size = 4 },
+ }, {
+ .clk = {
+ .name = "mmc_bus",
+ .id = 2,
+ .ctrlbit = S5P_CLKCON_SCLK0_MMC2,
+ .enable = s5p6440_sclk_ctrl,
+ },
+ .sources = &clkset_spi_mmc,
+ .reg_src = { .reg = S5P_CLK_SRC0, .shift = 22, .size = 2 },
+ .reg_div = { .reg = S5P_CLK_DIV1, .shift = 8, .size = 4 },
+ }, {
+ .clk = {
+ .name = "uclk1",
+ .id = -1,
+ .ctrlbit = S5P_CLKCON_SCLK0_UART,
+ .enable = s5p6440_sclk_ctrl,
+ },
+ .sources = &clkset_uart,
+ .reg_src = { .reg = S5P_CLK_SRC0, .shift = 13, .size = 1 },
+ .reg_div = { .reg = S5P_CLK_DIV2, .shift = 16, .size = 4 },
+ }, {
+ .clk = {
+ .name = "spi_epll",
+ .id = 0,
+ .ctrlbit = S5P_CLKCON_SCLK0_SPI0,
+ .enable = s5p6440_sclk_ctrl,
+ },
+ .sources = &clkset_spi_mmc,
+ .reg_src = { .reg = S5P_CLK_SRC0, .shift = 14, .size = 2 },
+ .reg_div = { .reg = S5P_CLK_DIV2, .shift = 0, .size = 4 },
+ }, {
+ .clk = {
+ .name = "spi_epll",
+ .id = 1,
+ .ctrlbit = S5P_CLKCON_SCLK0_SPI1,
+ .enable = s5p6440_sclk_ctrl,
+ },
+ .sources = &clkset_spi_mmc,
+ .reg_src = { .reg = S5P_CLK_SRC0, .shift = 16, .size = 2 },
+ .reg_div = { .reg = S5P_CLK_DIV2, .shift = 4, .size = 4 },
+ }
+};
+
+/* Clock initialisation code */
+static struct clksrc_clk *init_parents[] = {
+ &clk_mout_apll,
+ &clk_mout_epll,
+ &clk_mout_mpll,
+};
+
+void __init_or_cpufreq s5p6440_setup_clocks(void)
+{
+ struct clk *xtal_clk;
+ unsigned long xtal;
+ unsigned long fclk;
+ unsigned long hclk;
+ unsigned long hclk_low;
+ unsigned long pclk;
+ unsigned long pclk_low;
+ unsigned long epll;
+ unsigned long apll;
+ unsigned long mpll;
+ unsigned int ptr;
+ u32 clkdiv0;
+ u32 clkdiv3;
+
+ /* Set S5P6440 functions for clk_fout_epll */
+ clk_fout_epll.enable = s5p6440_epll_enable;
+ clk_fout_epll.ops = &s5p6440_epll_ops;
+
+ /* Set S5P6440 functions for arm clock */
+ clk_arm.parent = &clk_mout_apll.clk;
+ clk_arm.ops = &s5p6440_clkarm_ops;
+ clk_48m.enable = s5p6440_clk48m_ctrl;
+
+ clkdiv0 = __raw_readl(S5P_CLK_DIV0);
+ clkdiv3 = __raw_readl(S5P_CLK_DIV3);
+
+ xtal_clk = clk_get(NULL, "ext_xtal");
+ BUG_ON(IS_ERR(xtal_clk));
+
+ xtal = clk_get_rate(xtal_clk);
+ clk_put(xtal_clk);
+
+ epll = s5p_get_pll90xx(xtal, __raw_readl(S5P_EPLL_CON),
+ __raw_readl(S5P_EPLL_CON_K));
+ mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P_MPLL_CON), pll_4502);
+ apll = s5p_get_pll45xx(xtal, __raw_readl(S5P_APLL_CON), pll_4502);
+
+ printk(KERN_INFO "S5P6440: PLL settings, A=%ld.%ldMHz, M=%ld.%ldMHz," \
+ " E=%ld.%ldMHz\n",
+ print_mhz(apll), print_mhz(mpll), print_mhz(epll));
+
+ fclk = apll / GET_DIV(clkdiv0, S5P_CLKDIV0_ARM);
+ hclk = fclk / GET_DIV(clkdiv0, S5P_CLKDIV0_HCLK);
+ pclk = hclk / GET_DIV(clkdiv0, S5P_CLKDIV0_PCLK);
+
+ if (__raw_readl(S5P_OTHERS) & S5P_OTHERS_HCLK_LOW_SEL_MPLL) {
+ /* Asynchronous mode */
+ hclk_low = mpll / GET_DIV(clkdiv3, S5P_CLKDIV3_HCLK_LOW);
+ } else {
+ /* Synchronous mode */
+ hclk_low = apll / GET_DIV(clkdiv3, S5P_CLKDIV3_HCLK_LOW);
+ }
+
+ pclk_low = hclk_low / GET_DIV(clkdiv3, S5P_CLKDIV3_PCLK_LOW);
+
+ printk(KERN_INFO "S5P6440: HCLK=%ld.%ldMHz, HCLK_LOW=%ld.%ldMHz," \
+ " PCLK=%ld.%ldMHz, PCLK_LOW=%ld.%ldMHz\n",
+ print_mhz(hclk), print_mhz(hclk_low),
+ print_mhz(pclk), print_mhz(pclk_low));
+
+ clk_fout_mpll.rate = mpll;
+ clk_fout_epll.rate = epll;
+ clk_fout_apll.rate = apll;
+
+ clk_f.rate = fclk;
+ clk_h.rate = hclk;
+ clk_p.rate = pclk;
+ clk_h_low.rate = hclk_low;
+ clk_p_low.rate = pclk_low;
+
+ for (ptr = 0; ptr < ARRAY_SIZE(init_parents); ptr++)
+ s3c_set_clksrc(init_parents[ptr], true);
+
+ for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
+ s3c_set_clksrc(&clksrcs[ptr], true);
+}
+
+static struct clk *clks[] __initdata = {
+ &clk_ext,
+ &clk_mout_epll.clk,
+ &clk_mout_mpll.clk,
+ &clk_dout_mpll,
+ &clk_iis_cd_v40,
+ &clk_pcm_cd,
+ &clk_p_low,
+ &clk_h_low,
+};
+
+void __init s5p6440_register_clocks(void)
+{
+ struct clk *clkp;
+ int ret;
+ int ptr;
+
+ ret = s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));
+ if (ret > 0)
+ printk(KERN_ERR "Failed to register %u clocks\n", ret);
+
+ s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
+ s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
+
+ clkp = init_clocks_disable;
+ for (ptr = 0; ptr < ARRAY_SIZE(init_clocks_disable); ptr++, clkp++) {
+
+ ret = s3c24xx_register_clock(clkp);
+ if (ret < 0) {
+ printk(KERN_ERR "Failed to register clock %s (%d)\n",
+ clkp->name, ret);
+ }
+ (clkp->enable)(clkp, 0);
+ }
+
+ s3c_pwmclk_init();
+}
--- /dev/null
+/* arch/arm/mach-s5p6440/gpio.c
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * S5P6440 - GPIOlib support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <mach/map.h>
+#include <mach/gpio.h>
+#include <mach/regs-gpio.h>
+#include <plat/gpio-core.h>
+#include <plat/gpio-cfg.h>
+#include <plat/gpio-cfg-helpers.h>
+
+/* GPIO bank summary:
+*
+* Bank GPIOs Style SlpCon ExtInt Group
+* A 6 4Bit Yes 1
+* B 7 4Bit Yes 1
+* C 8 4Bit Yes 2
+* F 2 2Bit Yes 4 [1]
+* G 7 4Bit Yes 5
+* H 10 4Bit[2] Yes 6
+* I 16 2Bit Yes None
+* J 12 2Bit Yes None
+* N 16 2Bit No IRQ_EINT
+* P 8 2Bit Yes 8
+* R 15 4Bit[2] Yes 8
+*
+* [1] BANKF pins 14,15 do not form part of the external interrupt sources
+* [2] BANK has two control registers, GPxCON0 and GPxCON1
+*/
+
+static int s5p6440_gpiolib_rbank_4bit2_input(struct gpio_chip *chip,
+ unsigned int offset)
+{
+ struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip);
+ void __iomem *base = ourchip->base;
+ void __iomem *regcon = base;
+ unsigned long con;
+
+ switch (offset) {
+ case 6:
+ offset += 1;
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ case 5:
+ regcon -= 4;
+ break;
+ default:
+ offset -= 7;
+ break;
+ }
+
+ con = __raw_readl(regcon);
+ con &= ~(0xf << con_4bit_shift(offset));
+ __raw_writel(con, regcon);
+
+ return 0;
+}
+
+static int s5p6440_gpiolib_rbank_4bit2_output(struct gpio_chip *chip,
+ unsigned int offset, int value)
+{
+ struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip);
+ void __iomem *base = ourchip->base;
+ void __iomem *regcon = base;
+ unsigned long con;
+ unsigned long dat;
+ unsigned con_offset = offset;
+
+ switch (con_offset) {
+ case 6:
+ con_offset += 1;
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ case 5:
+ regcon -= 4;
+ break;
+ default:
+ con_offset -= 7;
+ break;
+ }
+
+ con = __raw_readl(regcon);
+ con &= ~(0xf << con_4bit_shift(con_offset));
+ con |= 0x1 << con_4bit_shift(con_offset);
+
+ dat = __raw_readl(base + GPIODAT_OFF);
+ if (value)
+ dat |= 1 << offset;
+ else
+ dat &= ~(1 << offset);
+
+ __raw_writel(con, regcon);
+ __raw_writel(dat, base + GPIODAT_OFF);
+
+ return 0;
+}
+
+int s5p6440_gpio_setcfg_4bit_rbank(struct s3c_gpio_chip *chip,
+ unsigned int off, unsigned int cfg)
+{
+ void __iomem *reg = chip->base;
+ unsigned int shift;
+ u32 con;
+
+ switch (off) {
+ case 0:
+ case 1:
+ case 2:
+ case 3:
+ case 4:
+ case 5:
+ shift = (off & 7) * 4;
+ reg -= 4;
+ break;
+ case 6:
+ shift = ((off + 1) & 7) * 4;
+ reg -= 4;
+ default:
+ shift = ((off + 1) & 7) * 4;
+ break;
+ }
+
+ if (s3c_gpio_is_cfg_special(cfg)) {
+ cfg &= 0xf;
+ cfg <<= shift;
+ }
+
+ con = __raw_readl(reg);
+ con &= ~(0xf << shift);
+ con |= cfg;
+ __raw_writel(con, reg);
+
+ return 0;
+}
+
+static struct s3c_gpio_cfg s5p6440_gpio_cfgs[] = {
+ {
+ .cfg_eint = 0,
+ }, {
+ .cfg_eint = 7,
+ }, {
+ .cfg_eint = 3,
+ .set_config = s5p6440_gpio_setcfg_4bit_rbank,
+ }, {
+ .cfg_eint = 0,
+ .set_config = s3c_gpio_setcfg_s3c24xx,
+ }, {
+ .cfg_eint = 2,
+ .set_config = s3c_gpio_setcfg_s3c24xx,
+ }, {
+ .cfg_eint = 3,
+ .set_config = s3c_gpio_setcfg_s3c24xx,
+ },
+};
+
+static struct s3c_gpio_chip s5p6440_gpio_4bit[] = {
+ {
+ .base = S5P6440_GPA_BASE,
+ .config = &s5p6440_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPA(0),
+ .ngpio = S5P6440_GPIO_A_NR,
+ .label = "GPA",
+ },
+ }, {
+ .base = S5P6440_GPB_BASE,
+ .config = &s5p6440_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPB(0),
+ .ngpio = S5P6440_GPIO_B_NR,
+ .label = "GPB",
+ },
+ }, {
+ .base = S5P6440_GPC_BASE,
+ .config = &s5p6440_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPC(0),
+ .ngpio = S5P6440_GPIO_C_NR,
+ .label = "GPC",
+ },
+ }, {
+ .base = S5P6440_GPG_BASE,
+ .config = &s5p6440_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPG(0),
+ .ngpio = S5P6440_GPIO_G_NR,
+ .label = "GPG",
+ },
+ },
+};
+
+static struct s3c_gpio_chip s5p6440_gpio_4bit2[] = {
+ {
+ .base = S5P6440_GPH_BASE + 0x4,
+ .config = &s5p6440_gpio_cfgs[1],
+ .chip = {
+ .base = S5P6440_GPH(0),
+ .ngpio = S5P6440_GPIO_H_NR,
+ .label = "GPH",
+ },
+ },
+};
+
+static struct s3c_gpio_chip gpio_rbank_4bit2[] = {
+ {
+ .base = S5P6440_GPR_BASE + 0x4,
+ .config = &s5p6440_gpio_cfgs[2],
+ .chip = {
+ .base = S5P6440_GPR(0),
+ .ngpio = S5P6440_GPIO_R_NR,
+ .label = "GPR",
+ },
+ },
+};
+
+static struct s3c_gpio_chip s5p6440_gpio_2bit[] = {
+ {
+ .base = S5P6440_GPF_BASE,
+ .config = &s5p6440_gpio_cfgs[5],
+ .chip = {
+ .base = S5P6440_GPF(0),
+ .ngpio = S5P6440_GPIO_F_NR,
+ .label = "GPF",
+ },
+ }, {
+ .base = S5P6440_GPI_BASE,
+ .config = &s5p6440_gpio_cfgs[3],
+ .chip = {
+ .base = S5P6440_GPI(0),
+ .ngpio = S5P6440_GPIO_I_NR,
+ .label = "GPI",
+ },
+ }, {
+ .base = S5P6440_GPJ_BASE,
+ .config = &s5p6440_gpio_cfgs[3],
+ .chip = {
+ .base = S5P6440_GPJ(0),
+ .ngpio = S5P6440_GPIO_J_NR,
+ .label = "GPJ",
+ },
+ }, {
+ .base = S5P6440_GPN_BASE,
+ .config = &s5p6440_gpio_cfgs[4],
+ .chip = {
+ .base = S5P6440_GPN(0),
+ .ngpio = S5P6440_GPIO_N_NR,
+ .label = "GPN",
+ },
+ }, {
+ .base = S5P6440_GPP_BASE,
+ .config = &s5p6440_gpio_cfgs[5],
+ .chip = {
+ .base = S5P6440_GPP(0),
+ .ngpio = S5P6440_GPIO_P_NR,
+ .label = "GPP",
+ },
+ },
+};
+
+void __init s5p6440_gpiolib_set_cfg(struct s3c_gpio_cfg *chipcfg, int nr_chips)
+{
+ for (; nr_chips > 0; nr_chips--, chipcfg++) {
+ if (!chipcfg->set_config)
+ chipcfg->set_config = s3c_gpio_setcfg_s3c64xx_4bit;
+ if (!chipcfg->set_pull)
+ chipcfg->set_pull = s3c_gpio_setpull_updown;
+ if (!chipcfg->get_pull)
+ chipcfg->get_pull = s3c_gpio_getpull_updown;
+ }
+}
+
+static void __init s5p6440_gpio_add_rbank_4bit2(struct s3c_gpio_chip *chip,
+ int nr_chips)
+{
+ for (; nr_chips > 0; nr_chips--, chip++) {
+ chip->chip.direction_input = s5p6440_gpiolib_rbank_4bit2_input;
+ chip->chip.direction_output =
+ s5p6440_gpiolib_rbank_4bit2_output;
+ s3c_gpiolib_add(chip);
+ }
+}
+
+static int __init s5p6440_gpiolib_init(void)
+{
+ struct s3c_gpio_chip *chips = s5p6440_gpio_2bit;
+ int nr_chips = ARRAY_SIZE(s5p6440_gpio_2bit);
+
+ s5p6440_gpiolib_set_cfg(s5p6440_gpio_cfgs,
+ ARRAY_SIZE(s5p6440_gpio_cfgs));
+
+ for (; nr_chips > 0; nr_chips--, chips++)
+ s3c_gpiolib_add(chips);
+
+ samsung_gpiolib_add_4bit_chips(s5p6440_gpio_4bit,
+ ARRAY_SIZE(s5p6440_gpio_4bit));
+
+ samsung_gpiolib_add_4bit2_chips(s5p6440_gpio_4bit2,
+ ARRAY_SIZE(s5p6440_gpio_4bit2));
+
+ s5p6440_gpio_add_rbank_4bit2(gpio_rbank_4bit2,
+ ARRAY_SIZE(gpio_rbank_4bit2));
+
+ return 0;
+}
+arch_initcall(s5p6440_gpiolib_init);
--- /dev/null
+/* linux/arch/arm/mach-s5p6440/init.c
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * S5P6440 - Init support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/serial_core.h>
+
+#include <plat/cpu.h>
+#include <plat/devs.h>
+#include <plat/s5p6440.h>
+#include <plat/regs-serial.h>
+
+static struct s3c24xx_uart_clksrc s5p6440_serial_clocks[] = {
+ [0] = {
+ .name = "pclk_low",
+ .divisor = 1,
+ .min_baud = 0,
+ .max_baud = 0,
+ },
+ [1] = {
+ .name = "uclk1",
+ .divisor = 1,
+ .min_baud = 0,
+ .max_baud = 0,
+ },
+};
+
+/* uart registration process */
+void __init s5p6440_common_init_uarts(struct s3c2410_uartcfg *cfg, int no)
+{
+ struct s3c2410_uartcfg *tcfg = cfg;
+ u32 ucnt;
+
+ for (ucnt = 0; ucnt < no; ucnt++, tcfg++) {
+ if (!tcfg->clocks) {
+ tcfg->clocks = s5p6440_serial_clocks;
+ tcfg->clocks_size = ARRAY_SIZE(s5p6440_serial_clocks);
+ }
+ }
+
+ s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
+}
+++ /dev/null
-/* arch/arm/mach-s5p6440/s5p6440-gpio.c
- *
- * Copyright (c) 2009 Samsung Electronics Co., Ltd.
- * http://www.samsung.com/
- *
- * S5P6440 - GPIOlib support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/irq.h>
-#include <linux/io.h>
-#include <mach/map.h>
-#include <mach/gpio.h>
-#include <mach/regs-gpio.h>
-#include <plat/gpio-core.h>
-#include <plat/gpio-cfg.h>
-#include <plat/gpio-cfg-helpers.h>
-
-/* GPIO bank summary:
-*
-* Bank GPIOs Style SlpCon ExtInt Group
-* A 6 4Bit Yes 1
-* B 7 4Bit Yes 1
-* C 8 4Bit Yes 2
-* F 2 2Bit Yes 4 [1]
-* G 7 4Bit Yes 5
-* H 10 4Bit[2] Yes 6
-* I 16 2Bit Yes None
-* J 12 2Bit Yes None
-* N 16 2Bit No IRQ_EINT
-* P 8 2Bit Yes 8
-* R 15 4Bit[2] Yes 8
-*
-* [1] BANKF pins 14,15 do not form part of the external interrupt sources
-* [2] BANK has two control registers, GPxCON0 and GPxCON1
-*/
-
-static int s5p6440_gpiolib_rbank_4bit2_input(struct gpio_chip *chip,
- unsigned int offset)
-{
- struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip);
- void __iomem *base = ourchip->base;
- void __iomem *regcon = base;
- unsigned long con;
-
- switch (offset) {
- case 6:
- offset += 1;
- case 0:
- case 1:
- case 2:
- case 3:
- case 4:
- case 5:
- regcon -= 4;
- break;
- default:
- offset -= 7;
- break;
- }
-
- con = __raw_readl(regcon);
- con &= ~(0xf << con_4bit_shift(offset));
- __raw_writel(con, regcon);
-
- return 0;
-}
-
-static int s5p6440_gpiolib_rbank_4bit2_output(struct gpio_chip *chip,
- unsigned int offset, int value)
-{
- struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip);
- void __iomem *base = ourchip->base;
- void __iomem *regcon = base;
- unsigned long con;
- unsigned long dat;
- unsigned con_offset = offset;
-
- switch (con_offset) {
- case 6:
- con_offset += 1;
- case 0:
- case 1:
- case 2:
- case 3:
- case 4:
- case 5:
- regcon -= 4;
- break;
- default:
- con_offset -= 7;
- break;
- }
-
- con = __raw_readl(regcon);
- con &= ~(0xf << con_4bit_shift(con_offset));
- con |= 0x1 << con_4bit_shift(con_offset);
-
- dat = __raw_readl(base + GPIODAT_OFF);
- if (value)
- dat |= 1 << offset;
- else
- dat &= ~(1 << offset);
-
- __raw_writel(con, regcon);
- __raw_writel(dat, base + GPIODAT_OFF);
-
- return 0;
-}
-
-int s5p6440_gpio_setcfg_4bit_rbank(struct s3c_gpio_chip *chip,
- unsigned int off, unsigned int cfg)
-{
- void __iomem *reg = chip->base;
- unsigned int shift;
- u32 con;
-
- switch (off) {
- case 0:
- case 1:
- case 2:
- case 3:
- case 4:
- case 5:
- shift = (off & 7) * 4;
- reg -= 4;
- break;
- case 6:
- shift = ((off + 1) & 7) * 4;
- reg -= 4;
- default:
- shift = ((off + 1) & 7) * 4;
- break;
- }
-
- if (s3c_gpio_is_cfg_special(cfg)) {
- cfg &= 0xf;
- cfg <<= shift;
- }
-
- con = __raw_readl(reg);
- con &= ~(0xf << shift);
- con |= cfg;
- __raw_writel(con, reg);
-
- return 0;
-}
-
-static struct s3c_gpio_cfg s5p6440_gpio_cfgs[] = {
- {
- .cfg_eint = 0,
- }, {
- .cfg_eint = 7,
- }, {
- .cfg_eint = 3,
- .set_config = s5p6440_gpio_setcfg_4bit_rbank,
- }, {
- .cfg_eint = 0,
- .set_config = s3c_gpio_setcfg_s3c24xx,
- }, {
- .cfg_eint = 2,
- .set_config = s3c_gpio_setcfg_s3c24xx,
- }, {
- .cfg_eint = 3,
- .set_config = s3c_gpio_setcfg_s3c24xx,
- },
-};
-
-static struct s3c_gpio_chip s5p6440_gpio_4bit[] = {
- {
- .base = S5P6440_GPA_BASE,
- .config = &s5p6440_gpio_cfgs[1],
- .chip = {
- .base = S5P6440_GPA(0),
- .ngpio = S5P6440_GPIO_A_NR,
- .label = "GPA",
- },
- }, {
- .base = S5P6440_GPB_BASE,
- .config = &s5p6440_gpio_cfgs[1],
- .chip = {
- .base = S5P6440_GPB(0),
- .ngpio = S5P6440_GPIO_B_NR,
- .label = "GPB",
- },
- }, {
- .base = S5P6440_GPC_BASE,
- .config = &s5p6440_gpio_cfgs[1],
- .chip = {
- .base = S5P6440_GPC(0),
- .ngpio = S5P6440_GPIO_C_NR,
- .label = "GPC",
- },
- }, {
- .base = S5P6440_GPG_BASE,
- .config = &s5p6440_gpio_cfgs[1],
- .chip = {
- .base = S5P6440_GPG(0),
- .ngpio = S5P6440_GPIO_G_NR,
- .label = "GPG",
- },
- },
-};
-
-static struct s3c_gpio_chip s5p6440_gpio_4bit2[] = {
- {
- .base = S5P6440_GPH_BASE + 0x4,
- .config = &s5p6440_gpio_cfgs[1],
- .chip = {
- .base = S5P6440_GPH(0),
- .ngpio = S5P6440_GPIO_H_NR,
- .label = "GPH",
- },
- },
-};
-
-static struct s3c_gpio_chip gpio_rbank_4bit2[] = {
- {
- .base = S5P6440_GPR_BASE + 0x4,
- .config = &s5p6440_gpio_cfgs[2],
- .chip = {
- .base = S5P6440_GPR(0),
- .ngpio = S5P6440_GPIO_R_NR,
- .label = "GPR",
- },
- },
-};
-
-static struct s3c_gpio_chip s5p6440_gpio_2bit[] = {
- {
- .base = S5P6440_GPF_BASE,
- .config = &s5p6440_gpio_cfgs[5],
- .chip = {
- .base = S5P6440_GPF(0),
- .ngpio = S5P6440_GPIO_F_NR,
- .label = "GPF",
- },
- }, {
- .base = S5P6440_GPI_BASE,
- .config = &s5p6440_gpio_cfgs[3],
- .chip = {
- .base = S5P6440_GPI(0),
- .ngpio = S5P6440_GPIO_I_NR,
- .label = "GPI",
- },
- }, {
- .base = S5P6440_GPJ_BASE,
- .config = &s5p6440_gpio_cfgs[3],
- .chip = {
- .base = S5P6440_GPJ(0),
- .ngpio = S5P6440_GPIO_J_NR,
- .label = "GPJ",
- },
- }, {
- .base = S5P6440_GPN_BASE,
- .config = &s5p6440_gpio_cfgs[4],
- .chip = {
- .base = S5P6440_GPN(0),
- .ngpio = S5P6440_GPIO_N_NR,
- .label = "GPN",
- },
- }, {
- .base = S5P6440_GPP_BASE,
- .config = &s5p6440_gpio_cfgs[5],
- .chip = {
- .base = S5P6440_GPP(0),
- .ngpio = S5P6440_GPIO_P_NR,
- .label = "GPP",
- },
- },
-};
-
-void __init s5p6440_gpiolib_set_cfg(struct s3c_gpio_cfg *chipcfg, int nr_chips)
-{
- for (; nr_chips > 0; nr_chips--, chipcfg++) {
- if (!chipcfg->set_config)
- chipcfg->set_config = s3c_gpio_setcfg_s3c64xx_4bit;
- if (!chipcfg->set_pull)
- chipcfg->set_pull = s3c_gpio_setpull_updown;
- if (!chipcfg->get_pull)
- chipcfg->get_pull = s3c_gpio_getpull_updown;
- }
-}
-
-static void __init s5p6440_gpio_add_rbank_4bit2(struct s3c_gpio_chip *chip,
- int nr_chips)
-{
- for (; nr_chips > 0; nr_chips--, chip++) {
- chip->chip.direction_input = s5p6440_gpiolib_rbank_4bit2_input;
- chip->chip.direction_output =
- s5p6440_gpiolib_rbank_4bit2_output;
- s3c_gpiolib_add(chip);
- }
-}
-
-static int __init s5p6440_gpiolib_init(void)
-{
- struct s3c_gpio_chip *chips = s5p6440_gpio_2bit;
- int nr_chips = ARRAY_SIZE(s5p6440_gpio_2bit);
-
- s5p6440_gpiolib_set_cfg(s5p6440_gpio_cfgs,
- ARRAY_SIZE(s5p6440_gpio_cfgs));
-
- for (; nr_chips > 0; nr_chips--, chips++)
- s3c_gpiolib_add(chips);
-
- samsung_gpiolib_add_4bit_chips(s5p6440_gpio_4bit,
- ARRAY_SIZE(s5p6440_gpio_4bit));
-
- samsung_gpiolib_add_4bit2_chips(s5p6440_gpio_4bit2,
- ARRAY_SIZE(s5p6440_gpio_4bit2));
-
- s5p6440_gpio_add_rbank_4bit2(gpio_rbank_4bit2,
- ARRAY_SIZE(gpio_rbank_4bit2));
-
- return 0;
-}
-arch_initcall(s5p6440_gpiolib_init);
select SAMSUNG_IRQ_UART
help
Base platform code for Samsung's S5P series SoC.
-
-if (PLAT_S5P && ARCH_S5P6440)
-
-# Configuration options shared by all S5P64XX implementations
-
-config CPU_S5P6440_INIT
- bool
- help
- Initialisation code for the S5P6440.
-
-config CPU_S5P6440_CLOCK
- bool
- help
- Clock support code for the S5P6440.
-
-endif
obj-y += clock.o
obj-y += irq.o
obj-y += setup-i2c0.o
-
-# CPU support
-
-obj-$(CONFIG_CPU_S5P6440_INIT) += s5p6440-init.o
-obj-$(CONFIG_CPU_S5P6440_CLOCK) += s5p6440-clock.o
+++ /dev/null
-/* linux/arch/arm/plat-s5p/s5p6440-clock.c
- *
- * Copyright (c) 2009 Samsung Electronics Co., Ltd.
- * http://www.samsung.com/
- *
- * S5P6440 - Clock support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/errno.h>
-#include <linux/err.h>
-#include <linux/clk.h>
-#include <linux/sysdev.h>
-#include <linux/io.h>
-
-#include <mach/hardware.h>
-#include <mach/map.h>
-
-#include <plat/cpu-freq.h>
-#include <mach/regs-clock.h>
-#include <plat/clock.h>
-#include <plat/cpu.h>
-#include <plat/clock-clksrc.h>
-#include <plat/s5p-clock.h>
-#include <plat/pll.h>
-#include <plat/s5p6440.h>
-
-/* APLL Mux output clock */
-static struct clksrc_clk clk_mout_apll = {
- .clk = {
- .name = "mout_apll",
- .id = -1,
- },
- .sources = &clk_src_apll,
- .reg_src = { .reg = S5P_CLK_SRC0, .shift = 0, .size = 1 },
-};
-
-static int s5p6440_epll_enable(struct clk *clk, int enable)
-{
- unsigned int ctrlbit = clk->ctrlbit;
- unsigned int epll_con = __raw_readl(S5P_EPLL_CON) & ~ctrlbit;
-
- if (enable)
- __raw_writel(epll_con | ctrlbit, S5P_EPLL_CON);
- else
- __raw_writel(epll_con, S5P_EPLL_CON);
-
- return 0;
-}
-
-static unsigned long s5p6440_epll_get_rate(struct clk *clk)
-{
- return clk->rate;
-}
-
-static u32 epll_div[][5] = {
- { 36000000, 0, 48, 1, 4 },
- { 48000000, 0, 32, 1, 3 },
- { 60000000, 0, 40, 1, 3 },
- { 72000000, 0, 48, 1, 3 },
- { 84000000, 0, 28, 1, 2 },
- { 96000000, 0, 32, 1, 2 },
- { 32768000, 45264, 43, 1, 4 },
- { 45158000, 6903, 30, 1, 3 },
- { 49152000, 50332, 32, 1, 3 },
- { 67738000, 10398, 45, 1, 3 },
- { 73728000, 9961, 49, 1, 3 }
-};
-
-static int s5p6440_epll_set_rate(struct clk *clk, unsigned long rate)
-{
- unsigned int epll_con, epll_con_k;
- unsigned int i;
-
- if (clk->rate == rate) /* Return if nothing changed */
- return 0;
-
- epll_con = __raw_readl(S5P_EPLL_CON);
- epll_con_k = __raw_readl(S5P_EPLL_CON_K);
-
- epll_con_k &= ~(PLL90XX_KDIV_MASK);
- epll_con &= ~(PLL90XX_MDIV_MASK | PLL90XX_PDIV_MASK | PLL90XX_SDIV_MASK);
-
- for (i = 0; i < ARRAY_SIZE(epll_div); i++) {
- if (epll_div[i][0] == rate) {
- epll_con_k |= (epll_div[i][1] << PLL90XX_KDIV_SHIFT);
- epll_con |= (epll_div[i][2] << PLL90XX_MDIV_SHIFT) |
- (epll_div[i][3] << PLL90XX_PDIV_SHIFT) |
- (epll_div[i][4] << PLL90XX_SDIV_SHIFT);
- break;
- }
- }
-
- if (i == ARRAY_SIZE(epll_div)) {
- printk(KERN_ERR "%s: Invalid Clock EPLL Frequency\n", __func__);
- return -EINVAL;
- }
-
- __raw_writel(epll_con, S5P_EPLL_CON);
- __raw_writel(epll_con_k, S5P_EPLL_CON_K);
-
- clk->rate = rate;
-
- return 0;
-}
-
-static struct clk_ops s5p6440_epll_ops = {
- .get_rate = s5p6440_epll_get_rate,
- .set_rate = s5p6440_epll_set_rate,
-};
-
-static struct clksrc_clk clk_mout_epll = {
- .clk = {
- .name = "mout_epll",
- .id = -1,
- },
- .sources = &clk_src_epll,
- .reg_src = { .reg = S5P_CLK_SRC0, .shift = 2, .size = 1 },
-};
-
-static struct clksrc_clk clk_mout_mpll = {
- .clk = {
- .name = "mout_mpll",
- .id = -1,
- },
- .sources = &clk_src_mpll,
- .reg_src = { .reg = S5P_CLK_SRC0, .shift = 1, .size = 1 },
-};
-
-static struct clk clk_h_low = {
- .name = "hclk_low",
- .id = -1,
- .rate = 0,
- .parent = NULL,
- .ctrlbit = 0,
- .ops = &clk_ops_def_setrate,
-};
-
-static struct clk clk_p_low = {
- .name = "pclk_low",
- .id = -1,
- .rate = 0,
- .parent = NULL,
- .ctrlbit = 0,
- .ops = &clk_ops_def_setrate,
-};
-
-enum perf_level {
- L0 = 532*1000,
- L1 = 266*1000,
- L2 = 133*1000,
-};
-
-static const u32 clock_table[][3] = {
- /*{ARM_CLK, DIVarm, DIVhclk}*/
- {L0 * 1000, (0 << ARM_DIV_RATIO_SHIFT), (3 << S5P_CLKDIV0_HCLK_SHIFT)},
- {L1 * 1000, (1 << ARM_DIV_RATIO_SHIFT), (1 << S5P_CLKDIV0_HCLK_SHIFT)},
- {L2 * 1000, (3 << ARM_DIV_RATIO_SHIFT), (0 << S5P_CLKDIV0_HCLK_SHIFT)},
-};
-
-static unsigned long s5p6440_armclk_get_rate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- u32 clkdiv;
-
- /* divisor mask starts at bit0, so no need to shift */
- clkdiv = __raw_readl(ARM_CLK_DIV) & ARM_DIV_MASK;
-
- return rate / (clkdiv + 1);
-}
-
-static unsigned long s5p6440_armclk_round_rate(struct clk *clk,
- unsigned long rate)
-{
- u32 iter;
-
- for (iter = 1 ; iter < ARRAY_SIZE(clock_table) ; iter++) {
- if (rate > clock_table[iter][0])
- return clock_table[iter-1][0];
- }
-
- return clock_table[ARRAY_SIZE(clock_table) - 1][0];
-}
-
-static int s5p6440_armclk_set_rate(struct clk *clk, unsigned long rate)
-{
- u32 round_tmp;
- u32 iter;
- u32 clk_div0_tmp;
- u32 cur_rate = clk->ops->get_rate(clk);
- unsigned long flags;
-
- round_tmp = clk->ops->round_rate(clk, rate);
- if (round_tmp == cur_rate)
- return 0;
-
-
- for (iter = 0 ; iter < ARRAY_SIZE(clock_table) ; iter++) {
- if (round_tmp == clock_table[iter][0])
- break;
- }
-
- if (iter >= ARRAY_SIZE(clock_table))
- iter = ARRAY_SIZE(clock_table) - 1;
-
- local_irq_save(flags);
- if (cur_rate > round_tmp) {
- /* Frequency Down */
- clk_div0_tmp = __raw_readl(ARM_CLK_DIV) & ~(ARM_DIV_MASK);
- clk_div0_tmp |= clock_table[iter][1];
- __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
-
- clk_div0_tmp = __raw_readl(ARM_CLK_DIV) &
- ~(S5P_CLKDIV0_HCLK_MASK);
- clk_div0_tmp |= clock_table[iter][2];
- __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
-
-
- } else {
- /* Frequency Up */
- clk_div0_tmp = __raw_readl(ARM_CLK_DIV) &
- ~(S5P_CLKDIV0_HCLK_MASK);
- clk_div0_tmp |= clock_table[iter][2];
- __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
-
- clk_div0_tmp = __raw_readl(ARM_CLK_DIV) & ~(ARM_DIV_MASK);
- clk_div0_tmp |= clock_table[iter][1];
- __raw_writel(clk_div0_tmp, ARM_CLK_DIV);
- }
- local_irq_restore(flags);
-
- clk->rate = clock_table[iter][0];
-
- return 0;
-}
-
-static struct clk_ops s5p6440_clkarm_ops = {
- .get_rate = s5p6440_armclk_get_rate,
- .set_rate = s5p6440_armclk_set_rate,
- .round_rate = s5p6440_armclk_round_rate,
-};
-
-static unsigned long s5p6440_clk_doutmpll_get_rate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
-
- if (__raw_readl(S5P_CLK_DIV0) & S5P_CLKDIV0_MPLL_MASK)
- rate /= 2;
-
- return rate;
-}
-
-static struct clk clk_dout_mpll = {
- .name = "dout_mpll",
- .id = -1,
- .parent = &clk_mout_mpll.clk,
- .ops = &(struct clk_ops) {
- .get_rate = s5p6440_clk_doutmpll_get_rate,
- },
-};
-
-int s5p6440_clk48m_ctrl(struct clk *clk, int enable)
-{
- unsigned long flags;
- u32 val;
-
- /* can't rely on clock lock, this register has other usages */
- local_irq_save(flags);
-
- val = __raw_readl(S5P_OTHERS);
- if (enable)
- val |= S5P_OTHERS_USB_SIG_MASK;
- else
- val &= ~S5P_OTHERS_USB_SIG_MASK;
-
- __raw_writel(val, S5P_OTHERS);
-
- local_irq_restore(flags);
-
- return 0;
-}
-
-static int s5p6440_pclk_ctrl(struct clk *clk, int enable)
-{
- return s5p_gatectrl(S5P_CLK_GATE_PCLK, clk, enable);
-}
-
-static int s5p6440_hclk0_ctrl(struct clk *clk, int enable)
-{
- return s5p_gatectrl(S5P_CLK_GATE_HCLK0, clk, enable);
-}
-
-static int s5p6440_hclk1_ctrl(struct clk *clk, int enable)
-{
- return s5p_gatectrl(S5P_CLK_GATE_HCLK1, clk, enable);
-}
-
-static int s5p6440_sclk_ctrl(struct clk *clk, int enable)
-{
- return s5p_gatectrl(S5P_CLK_GATE_SCLK0, clk, enable);
-}
-
-static int s5p6440_mem_ctrl(struct clk *clk, int enable)
-{
- return s5p_gatectrl(S5P_CLK_GATE_MEM0, clk, enable);
-}
-
-/*
- * The following clocks will be disabled during clock initialization. It is
- * recommended to keep the following clocks disabled until the driver requests
- * for enabling the clock.
- */
-static struct clk init_clocks_disable[] = {
- {
- .name = "nand",
- .id = -1,
- .parent = &clk_h,
- .enable = s5p6440_mem_ctrl,
- .ctrlbit = S5P_CLKCON_MEM0_HCLK_NFCON,
- }, {
- .name = "adc",
- .id = -1,
- .parent = &clk_p_low,
- .enable = s5p6440_pclk_ctrl,
- .ctrlbit = S5P_CLKCON_PCLK_TSADC,
- }, {
- .name = "i2c",
- .id = -1,
- .parent = &clk_p_low,
- .enable = s5p6440_pclk_ctrl,
- .ctrlbit = S5P_CLKCON_PCLK_IIC0,
- }, {
- .name = "i2s_v40",
- .id = 0,
- .parent = &clk_p_low,
- .enable = s5p6440_pclk_ctrl,
- .ctrlbit = S5P_CLKCON_PCLK_IIS2,
- }, {
- .name = "spi",
- .id = 0,
- .parent = &clk_p_low,
- .enable = s5p6440_pclk_ctrl,
- .ctrlbit = S5P_CLKCON_PCLK_SPI0,
- }, {
- .name = "spi",
- .id = 1,
- .parent = &clk_p_low,
- .enable = s5p6440_pclk_ctrl,
- .ctrlbit = S5P_CLKCON_PCLK_SPI1,
- }, {
- .name = "sclk_spi_48",
- .id = 0,
- .parent = &clk_48m,
- .enable = s5p6440_sclk_ctrl,
- .ctrlbit = S5P_CLKCON_SCLK0_SPI0_48,
- }, {
- .name = "sclk_spi_48",
- .id = 1,
- .parent = &clk_48m,
- .enable = s5p6440_sclk_ctrl,
- .ctrlbit = S5P_CLKCON_SCLK0_SPI1_48,
- }, {
- .name = "mmc_48m",
- .id = 0,
- .parent = &clk_48m,
- .enable = s5p6440_sclk_ctrl,
- .ctrlbit = S5P_CLKCON_SCLK0_MMC0_48,
- }, {
- .name = "mmc_48m",
- .id = 1,
- .parent = &clk_48m,
- .enable = s5p6440_sclk_ctrl,
- .ctrlbit = S5P_CLKCON_SCLK0_MMC1_48,
- }, {
- .name = "mmc_48m",
- .id = 2,
- .parent = &clk_48m,
- .enable = s5p6440_sclk_ctrl,
- .ctrlbit = S5P_CLKCON_SCLK0_MMC2_48,
- }, {
- .name = "otg",
- .id = -1,
- .parent = &clk_h_low,
- .enable = s5p6440_hclk0_ctrl,
- .ctrlbit = S5P_CLKCON_HCLK0_USB
- }, {
- .name = "post",
- .id = -1,
- .parent = &clk_h_low,
- .enable = s5p6440_hclk0_ctrl,
- .ctrlbit = S5P_CLKCON_HCLK0_POST0
- }, {
- .name = "lcd",
- .id = -1,
- .parent = &clk_h_low,
- .enable = s5p6440_hclk1_ctrl,
- .ctrlbit = S5P_CLKCON_HCLK1_DISPCON,
- }, {
- .name = "hsmmc",
- .id = 0,
- .parent = &clk_h_low,
- .enable = s5p6440_hclk0_ctrl,
- .ctrlbit = S5P_CLKCON_HCLK0_HSMMC0,
- }, {
- .name = "hsmmc",
- .id = 1,
- .parent = &clk_h_low,
- .enable = s5p6440_hclk0_ctrl,
- .ctrlbit = S5P_CLKCON_HCLK0_HSMMC1,
- }, {
- .name = "hsmmc",
- .id = 2,
- .parent = &clk_h_low,
- .enable = s5p6440_hclk0_ctrl,
- .ctrlbit = S5P_CLKCON_HCLK0_HSMMC2,
- }, {
- .name = "rtc",
- .id = -1,
- .parent = &clk_p_low,
- .enable = s5p6440_pclk_ctrl,
- .ctrlbit = S5P_CLKCON_PCLK_RTC,
- }, {
- .name = "watchdog",
- .id = -1,
- .parent = &clk_p_low,
- .enable = s5p6440_pclk_ctrl,
- .ctrlbit = S5P_CLKCON_PCLK_WDT,
- }, {
- .name = "timers",
- .id = -1,
- .parent = &clk_p_low,
- .enable = s5p6440_pclk_ctrl,
- .ctrlbit = S5P_CLKCON_PCLK_PWM,
- }
-};
-
-/*
- * The following clocks will be enabled during clock initialization.
- */
-static struct clk init_clocks[] = {
- {
- .name = "gpio",
- .id = -1,
- .parent = &clk_p_low,
- .enable = s5p6440_pclk_ctrl,
- .ctrlbit = S5P_CLKCON_PCLK_GPIO,
- }, {
- .name = "uart",
- .id = 0,
- .parent = &clk_p_low,
- .enable = s5p6440_pclk_ctrl,
- .ctrlbit = S5P_CLKCON_PCLK_UART0,
- }, {
- .name = "uart",
- .id = 1,
- .parent = &clk_p_low,
- .enable = s5p6440_pclk_ctrl,
- .ctrlbit = S5P_CLKCON_PCLK_UART1,
- }, {
- .name = "uart",
- .id = 2,
- .parent = &clk_p_low,
- .enable = s5p6440_pclk_ctrl,
- .ctrlbit = S5P_CLKCON_PCLK_UART2,
- }, {
- .name = "uart",
- .id = 3,
- .parent = &clk_p_low,
- .enable = s5p6440_pclk_ctrl,
- .ctrlbit = S5P_CLKCON_PCLK_UART3,
- }
-};
-
-static struct clk clk_iis_cd_v40 = {
- .name = "iis_cdclk_v40",
- .id = -1,
-};
-
-static struct clk clk_pcm_cd = {
- .name = "pcm_cdclk",
- .id = -1,
-};
-
-static struct clk *clkset_spi_mmc_list[] = {
- &clk_mout_epll.clk,
- &clk_dout_mpll,
- &clk_fin_epll,
-};
-
-static struct clksrc_sources clkset_spi_mmc = {
- .sources = clkset_spi_mmc_list,
- .nr_sources = ARRAY_SIZE(clkset_spi_mmc_list),
-};
-
-static struct clk *clkset_uart_list[] = {
- &clk_mout_epll.clk,
- &clk_dout_mpll
-};
-
-static struct clksrc_sources clkset_uart = {
- .sources = clkset_uart_list,
- .nr_sources = ARRAY_SIZE(clkset_uart_list),
-};
-
-static struct clksrc_clk clksrcs[] = {
- {
- .clk = {
- .name = "mmc_bus",
- .id = 0,
- .ctrlbit = S5P_CLKCON_SCLK0_MMC0,
- .enable = s5p6440_sclk_ctrl,
- },
- .sources = &clkset_spi_mmc,
- .reg_src = { .reg = S5P_CLK_SRC0, .shift = 18, .size = 2 },
- .reg_div = { .reg = S5P_CLK_DIV1, .shift = 0, .size = 4 },
- }, {
- .clk = {
- .name = "mmc_bus",
- .id = 1,
- .ctrlbit = S5P_CLKCON_SCLK0_MMC1,
- .enable = s5p6440_sclk_ctrl,
- },
- .sources = &clkset_spi_mmc,
- .reg_src = { .reg = S5P_CLK_SRC0, .shift = 20, .size = 2 },
- .reg_div = { .reg = S5P_CLK_DIV1, .shift = 4, .size = 4 },
- }, {
- .clk = {
- .name = "mmc_bus",
- .id = 2,
- .ctrlbit = S5P_CLKCON_SCLK0_MMC2,
- .enable = s5p6440_sclk_ctrl,
- },
- .sources = &clkset_spi_mmc,
- .reg_src = { .reg = S5P_CLK_SRC0, .shift = 22, .size = 2 },
- .reg_div = { .reg = S5P_CLK_DIV1, .shift = 8, .size = 4 },
- }, {
- .clk = {
- .name = "uclk1",
- .id = -1,
- .ctrlbit = S5P_CLKCON_SCLK0_UART,
- .enable = s5p6440_sclk_ctrl,
- },
- .sources = &clkset_uart,
- .reg_src = { .reg = S5P_CLK_SRC0, .shift = 13, .size = 1 },
- .reg_div = { .reg = S5P_CLK_DIV2, .shift = 16, .size = 4 },
- }, {
- .clk = {
- .name = "spi_epll",
- .id = 0,
- .ctrlbit = S5P_CLKCON_SCLK0_SPI0,
- .enable = s5p6440_sclk_ctrl,
- },
- .sources = &clkset_spi_mmc,
- .reg_src = { .reg = S5P_CLK_SRC0, .shift = 14, .size = 2 },
- .reg_div = { .reg = S5P_CLK_DIV2, .shift = 0, .size = 4 },
- }, {
- .clk = {
- .name = "spi_epll",
- .id = 1,
- .ctrlbit = S5P_CLKCON_SCLK0_SPI1,
- .enable = s5p6440_sclk_ctrl,
- },
- .sources = &clkset_spi_mmc,
- .reg_src = { .reg = S5P_CLK_SRC0, .shift = 16, .size = 2 },
- .reg_div = { .reg = S5P_CLK_DIV2, .shift = 4, .size = 4 },
- }
-};
-
-/* Clock initialisation code */
-static struct clksrc_clk *init_parents[] = {
- &clk_mout_apll,
- &clk_mout_epll,
- &clk_mout_mpll,
-};
-
-void __init_or_cpufreq s5p6440_setup_clocks(void)
-{
- struct clk *xtal_clk;
- unsigned long xtal;
- unsigned long fclk;
- unsigned long hclk;
- unsigned long hclk_low;
- unsigned long pclk;
- unsigned long pclk_low;
- unsigned long epll;
- unsigned long apll;
- unsigned long mpll;
- unsigned int ptr;
- u32 clkdiv0;
- u32 clkdiv3;
-
- /* Set S5P6440 functions for clk_fout_epll */
- clk_fout_epll.enable = s5p6440_epll_enable;
- clk_fout_epll.ops = &s5p6440_epll_ops;
-
- /* Set S5P6440 functions for arm clock */
- clk_arm.parent = &clk_mout_apll.clk;
- clk_arm.ops = &s5p6440_clkarm_ops;
- clk_48m.enable = s5p6440_clk48m_ctrl;
-
- clkdiv0 = __raw_readl(S5P_CLK_DIV0);
- clkdiv3 = __raw_readl(S5P_CLK_DIV3);
-
- xtal_clk = clk_get(NULL, "ext_xtal");
- BUG_ON(IS_ERR(xtal_clk));
-
- xtal = clk_get_rate(xtal_clk);
- clk_put(xtal_clk);
-
- epll = s5p_get_pll90xx(xtal, __raw_readl(S5P_EPLL_CON),
- __raw_readl(S5P_EPLL_CON_K));
- mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P_MPLL_CON), pll_4502);
- apll = s5p_get_pll45xx(xtal, __raw_readl(S5P_APLL_CON), pll_4502);
-
- printk(KERN_INFO "S5P6440: PLL settings, A=%ld.%ldMHz, M=%ld.%ldMHz," \
- " E=%ld.%ldMHz\n",
- print_mhz(apll), print_mhz(mpll), print_mhz(epll));
-
- fclk = apll / GET_DIV(clkdiv0, S5P_CLKDIV0_ARM);
- hclk = fclk / GET_DIV(clkdiv0, S5P_CLKDIV0_HCLK);
- pclk = hclk / GET_DIV(clkdiv0, S5P_CLKDIV0_PCLK);
-
- if (__raw_readl(S5P_OTHERS) & S5P_OTHERS_HCLK_LOW_SEL_MPLL) {
- /* Asynchronous mode */
- hclk_low = mpll / GET_DIV(clkdiv3, S5P_CLKDIV3_HCLK_LOW);
- } else {
- /* Synchronous mode */
- hclk_low = apll / GET_DIV(clkdiv3, S5P_CLKDIV3_HCLK_LOW);
- }
-
- pclk_low = hclk_low / GET_DIV(clkdiv3, S5P_CLKDIV3_PCLK_LOW);
-
- printk(KERN_INFO "S5P6440: HCLK=%ld.%ldMHz, HCLK_LOW=%ld.%ldMHz," \
- " PCLK=%ld.%ldMHz, PCLK_LOW=%ld.%ldMHz\n",
- print_mhz(hclk), print_mhz(hclk_low),
- print_mhz(pclk), print_mhz(pclk_low));
-
- clk_fout_mpll.rate = mpll;
- clk_fout_epll.rate = epll;
- clk_fout_apll.rate = apll;
-
- clk_f.rate = fclk;
- clk_h.rate = hclk;
- clk_p.rate = pclk;
- clk_h_low.rate = hclk_low;
- clk_p_low.rate = pclk_low;
-
- for (ptr = 0; ptr < ARRAY_SIZE(init_parents); ptr++)
- s3c_set_clksrc(init_parents[ptr], true);
-
- for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
- s3c_set_clksrc(&clksrcs[ptr], true);
-}
-
-static struct clk *clks[] __initdata = {
- &clk_ext,
- &clk_mout_epll.clk,
- &clk_mout_mpll.clk,
- &clk_dout_mpll,
- &clk_iis_cd_v40,
- &clk_pcm_cd,
- &clk_p_low,
- &clk_h_low,
-};
-
-void __init s5p6440_register_clocks(void)
-{
- struct clk *clkp;
- int ret;
- int ptr;
-
- ret = s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));
- if (ret > 0)
- printk(KERN_ERR "Failed to register %u clocks\n", ret);
-
- s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
- s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
-
- clkp = init_clocks_disable;
- for (ptr = 0; ptr < ARRAY_SIZE(init_clocks_disable); ptr++, clkp++) {
-
- ret = s3c24xx_register_clock(clkp);
- if (ret < 0) {
- printk(KERN_ERR "Failed to register clock %s (%d)\n",
- clkp->name, ret);
- }
- (clkp->enable)(clkp, 0);
- }
-
- s3c_pwmclk_init();
-}
+++ /dev/null
-/* linux/arch/arm/plat-s5p/s5p6440-init.c
- *
- * Copyright (c) 2009 Samsung Electronics Co., Ltd.
- * http://www.samsung.com/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/serial_core.h>
-
-#include <plat/cpu.h>
-#include <plat/devs.h>
-#include <plat/s5p6440.h>
-#include <plat/regs-serial.h>
-
-static struct s3c24xx_uart_clksrc s5p6440_serial_clocks[] = {
- [0] = {
- .name = "pclk_low",
- .divisor = 1,
- .min_baud = 0,
- .max_baud = 0,
- },
- [1] = {
- .name = "uclk1",
- .divisor = 1,
- .min_baud = 0,
- .max_baud = 0,
- },
-};
-
-/* uart registration process */
-void __init s5p6440_common_init_uarts(struct s3c2410_uartcfg *cfg, int no)
-{
- struct s3c2410_uartcfg *tcfg = cfg;
- u32 ucnt;
-
- for (ucnt = 0; ucnt < no; ucnt++, tcfg++) {
- if (!tcfg->clocks) {
- tcfg->clocks = s5p6440_serial_clocks;
- tcfg->clocks_size = ARRAY_SIZE(s5p6440_serial_clocks);
- }
- }
-
- s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
-}
projects / GitHub / LineageOS / G12 / android_kernel_amlogic_linux-4.9.git / commitdiff