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-rw-r--r--arch/arm/plat-s5pc1xx/s5pc100-clock.c876
1 files changed, 0 insertions, 876 deletions
diff --git a/arch/arm/plat-s5pc1xx/s5pc100-clock.c b/arch/arm/plat-s5pc1xx/s5pc100-clock.c
deleted file mode 100644
index 2bf6c57a96a2..000000000000
--- a/arch/arm/plat-s5pc1xx/s5pc100-clock.c
+++ /dev/null
@@ -1,876 +0,0 @@
-/* linux/arch/arm/plat-s5pc1xx/s5pc100-clock.c
- *
- * Copyright 2009 Samsung Electronics, Co.
- * Byungho Min <bhmin@samsung.com>
- *
- * S5PC100 based common clock support
- *
- * Based on plat-s3c64xx/s3c6400-clock.c
- *
- * 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 <plat/regs-clock.h>
-#include <plat/clock.h>
-#include <plat/clock-clksrc.h>
-#include <plat/cpu.h>
-#include <plat/pll.h>
-#include <plat/devs.h>
-#include <plat/s5pc100.h>
-
-/* fin_apll, fin_mpll and fin_epll are all the same clock, which we call
- * ext_xtal_mux for want of an actual name from the manual.
-*/
-
-static struct clk clk_ext_xtal_mux = {
- .name = "ext_xtal",
- .id = -1,
-};
-
-#define clk_fin_apll clk_ext_xtal_mux
-#define clk_fin_mpll clk_ext_xtal_mux
-#define clk_fin_epll clk_ext_xtal_mux
-#define clk_fin_hpll clk_ext_xtal_mux
-
-#define clk_fout_mpll clk_mpll
-#define clk_vclk_54m clk_54m
-
-/* APLL */
-static struct clk clk_fout_apll = {
- .name = "fout_apll",
- .id = -1,
- .rate = 27000000,
-};
-
-static struct clk *clk_src_apll_list[] = {
- [0] = &clk_fin_apll,
- [1] = &clk_fout_apll,
-};
-
-static struct clksrc_sources clk_src_apll = {
- .sources = clk_src_apll_list,
- .nr_sources = ARRAY_SIZE(clk_src_apll_list),
-};
-
-static struct clksrc_clk clk_mout_apll = {
- .clk = {
- .name = "mout_apll",
- .id = -1,
- },
- .sources = &clk_src_apll,
- .reg_src = { .reg = S5PC100_CLKSRC0, .shift = 0, .size = 1, },
-};
-
-static unsigned long s5pc100_clk_dout_apll_get_rate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- unsigned int ratio;
-
- ratio = __raw_readl(S5PC100_CLKDIV0) & S5PC100_CLKDIV0_APLL_MASK;
- ratio >>= S5PC100_CLKDIV0_APLL_SHIFT;
-
- return rate / (ratio + 1);
-}
-
-static struct clk clk_dout_apll = {
- .name = "dout_apll",
- .id = -1,
- .parent = &clk_mout_apll.clk,
- .ops = &(struct clk_ops) {
- .get_rate = s5pc100_clk_dout_apll_get_rate,
- },
-};
-
-static unsigned long s5pc100_clk_arm_get_rate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- unsigned int ratio;
-
- ratio = __raw_readl(S5PC100_CLKDIV0) & S5PC100_CLKDIV0_ARM_MASK;
- ratio >>= S5PC100_CLKDIV0_ARM_SHIFT;
-
- return rate / (ratio + 1);
-}
-
-static unsigned long s5pc100_clk_arm_round_rate(struct clk *clk,
- unsigned long rate)
-{
- unsigned long parent = clk_get_rate(clk->parent);
- u32 div;
-
- if (parent < rate)
- return rate;
-
- div = (parent / rate) - 1;
- if (div > S5PC100_CLKDIV0_ARM_MASK)
- div = S5PC100_CLKDIV0_ARM_MASK;
-
- return parent / (div + 1);
-}
-
-static int s5pc100_clk_arm_set_rate(struct clk *clk, unsigned long rate)
-{
- unsigned long parent = clk_get_rate(clk->parent);
- u32 div;
- u32 val;
-
- if (rate < parent / (S5PC100_CLKDIV0_ARM_MASK + 1))
- return -EINVAL;
-
- rate = clk_round_rate(clk, rate);
- div = clk_get_rate(clk->parent) / rate;
-
- val = __raw_readl(S5PC100_CLKDIV0);
- val &= S5PC100_CLKDIV0_ARM_MASK;
- val |= (div - 1);
- __raw_writel(val, S5PC100_CLKDIV0);
-
- return 0;
-}
-
-static struct clk clk_arm = {
- .name = "armclk",
- .id = -1,
- .parent = &clk_dout_apll,
- .ops = &(struct clk_ops) {
- .get_rate = s5pc100_clk_arm_get_rate,
- .set_rate = s5pc100_clk_arm_set_rate,
- .round_rate = s5pc100_clk_arm_round_rate,
- },
-};
-
-static unsigned long s5pc100_clk_dout_d0_bus_get_rate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- unsigned int ratio;
-
- ratio = __raw_readl(S5PC100_CLKDIV0) & S5PC100_CLKDIV0_D0_MASK;
- ratio >>= S5PC100_CLKDIV0_D0_SHIFT;
-
- return rate / (ratio + 1);
-}
-
-static struct clk clk_dout_d0_bus = {
- .name = "dout_d0_bus",
- .id = -1,
- .parent = &clk_arm,
- .ops = &(struct clk_ops) {
- .get_rate = s5pc100_clk_dout_d0_bus_get_rate,
- },
-};
-
-static unsigned long s5pc100_clk_dout_pclkd0_get_rate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- unsigned int ratio;
-
- ratio = __raw_readl(S5PC100_CLKDIV0) & S5PC100_CLKDIV0_PCLKD0_MASK;
- ratio >>= S5PC100_CLKDIV0_PCLKD0_SHIFT;
-
- return rate / (ratio + 1);
-}
-
-static struct clk clk_dout_pclkd0 = {
- .name = "dout_pclkd0",
- .id = -1,
- .parent = &clk_dout_d0_bus,
- .ops = &(struct clk_ops) {
- .get_rate = s5pc100_clk_dout_pclkd0_get_rate,
- },
-};
-
-static unsigned long s5pc100_clk_dout_apll2_get_rate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- unsigned int ratio;
-
- ratio = __raw_readl(S5PC100_CLKDIV1) & S5PC100_CLKDIV1_APLL2_MASK;
- ratio >>= S5PC100_CLKDIV1_APLL2_SHIFT;
-
- return rate / (ratio + 1);
-}
-
-static struct clk clk_dout_apll2 = {
- .name = "dout_apll2",
- .id = -1,
- .parent = &clk_mout_apll.clk,
- .ops = &(struct clk_ops) {
- .get_rate = s5pc100_clk_dout_apll2_get_rate,
- },
-};
-
-/* MPLL */
-static struct clk *clk_src_mpll_list[] = {
- [0] = &clk_fin_mpll,
- [1] = &clk_fout_mpll,
-};
-
-static struct clksrc_sources clk_src_mpll = {
- .sources = clk_src_mpll_list,
- .nr_sources = ARRAY_SIZE(clk_src_mpll_list),
-};
-
-static struct clksrc_clk clk_mout_mpll = {
- .clk = {
- .name = "mout_mpll",
- .id = -1,
- },
- .sources = &clk_src_mpll,
- .reg_src = { .reg = S5PC100_CLKSRC0, .shift = 4, .size = 1, },
-};
-
-static struct clk *clkset_am_list[] = {
- [0] = &clk_mout_mpll.clk,
- [1] = &clk_dout_apll2,
-};
-
-static struct clksrc_sources clk_src_am = {
- .sources = clkset_am_list,
- .nr_sources = ARRAY_SIZE(clkset_am_list),
-};
-
-static struct clksrc_clk clk_mout_am = {
- .clk = {
- .name = "mout_am",
- .id = -1,
- },
- .sources = &clk_src_am,
- .reg_src = { .reg = S5PC100_CLKSRC0, .shift = 16, .size = 1, },
-};
-
-static unsigned long s5pc100_clk_dout_d1_bus_get_rate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- unsigned int ratio;
-
- printk(KERN_DEBUG "%s: parent is %ld\n", __func__, rate);
-
- ratio = __raw_readl(S5PC100_CLKDIV1) & S5PC100_CLKDIV1_D1_MASK;
- ratio >>= S5PC100_CLKDIV1_D1_SHIFT;
-
- return rate / (ratio + 1);
-}
-
-static struct clk clk_dout_d1_bus = {
- .name = "dout_d1_bus",
- .id = -1,
- .parent = &clk_mout_am.clk,
- .ops = &(struct clk_ops) {
- .get_rate = s5pc100_clk_dout_d1_bus_get_rate,
- },
-};
-
-static struct clk *clkset_onenand_list[] = {
- [0] = &clk_dout_d0_bus,
- [1] = &clk_dout_d1_bus,
-};
-
-static struct clksrc_sources clk_src_onenand = {
- .sources = clkset_onenand_list,
- .nr_sources = ARRAY_SIZE(clkset_onenand_list),
-};
-
-static struct clksrc_clk clk_mout_onenand = {
- .clk = {
- .name = "mout_onenand",
- .id = -1,
- },
- .sources = &clk_src_onenand,
- .reg_src = { .reg = S5PC100_CLKSRC0, .shift = 24, .size = 1, },
-};
-
-static unsigned long s5pc100_clk_dout_pclkd1_get_rate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- unsigned int ratio;
-
- printk(KERN_DEBUG "%s: parent is %ld\n", __func__, rate);
-
- ratio = __raw_readl(S5PC100_CLKDIV1) & S5PC100_CLKDIV1_PCLKD1_MASK;
- ratio >>= S5PC100_CLKDIV1_PCLKD1_SHIFT;
-
- return rate / (ratio + 1);
-}
-
-static struct clk clk_dout_pclkd1 = {
- .name = "dout_pclkd1",
- .id = -1,
- .parent = &clk_dout_d1_bus,
- .ops = &(struct clk_ops) {
- .get_rate = s5pc100_clk_dout_pclkd1_get_rate,
- },
-};
-
-static unsigned long s5pc100_clk_dout_mpll2_get_rate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- unsigned int ratio;
-
- printk(KERN_DEBUG "%s: parent is %ld\n", __func__, rate);
-
- ratio = __raw_readl(S5PC100_CLKDIV1) & S5PC100_CLKDIV1_MPLL2_MASK;
- ratio >>= S5PC100_CLKDIV1_MPLL2_SHIFT;
-
- return rate / (ratio + 1);
-}
-
-static struct clk clk_dout_mpll2 = {
- .name = "dout_mpll2",
- .id = -1,
- .parent = &clk_mout_am.clk,
- .ops = &(struct clk_ops) {
- .get_rate = s5pc100_clk_dout_mpll2_get_rate,
- },
-};
-
-static unsigned long s5pc100_clk_dout_cam_get_rate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- unsigned int ratio;
-
- printk(KERN_DEBUG "%s: parent is %ld\n", __func__, rate);
-
- ratio = __raw_readl(S5PC100_CLKDIV1) & S5PC100_CLKDIV1_CAM_MASK;
- ratio >>= S5PC100_CLKDIV1_CAM_SHIFT;
-
- return rate / (ratio + 1);
-}
-
-static struct clk clk_dout_cam = {
- .name = "dout_cam",
- .id = -1,
- .parent = &clk_dout_mpll2,
- .ops = &(struct clk_ops) {
- .get_rate = s5pc100_clk_dout_cam_get_rate,
- },
-};
-
-static unsigned long s5pc100_clk_dout_mpll_get_rate(struct clk *clk)
-{
- unsigned long rate = clk_get_rate(clk->parent);
- unsigned int ratio;
-
- printk(KERN_DEBUG "%s: parent is %ld\n", __func__, rate);
-
- ratio = __raw_readl(S5PC100_CLKDIV1) & S5PC100_CLKDIV1_MPLL_MASK;
- ratio >>= S5PC100_CLKDIV1_MPLL_SHIFT;
-
- return rate / (ratio + 1);
-}
-
-static struct clk clk_dout_mpll = {
- .name = "dout_mpll",
- .id = -1,
- .parent = &clk_mout_am.clk,
- .ops = &(struct clk_ops) {
- .get_rate = s5pc100_clk_dout_mpll_get_rate,
- },
-};
-
-/* EPLL */
-static struct clk clk_fout_epll = {
- .name = "fout_epll",
- .id = -1,
-};
-
-static struct clk *clk_src_epll_list[] = {
- [0] = &clk_fin_epll,
- [1] = &clk_fout_epll,
-};
-
-static struct clksrc_sources clk_src_epll = {
- .sources = clk_src_epll_list,
- .nr_sources = ARRAY_SIZE(clk_src_epll_list),
-};
-
-static struct clksrc_clk clk_mout_epll = {
- .clk = {
- .name = "mout_epll",
- .id = -1,
- },
- .sources = &clk_src_epll,
- .reg_src = { .reg = S5PC100_CLKSRC0, .shift = 8, .size = 1, },
-};
-
-/* HPLL */
-static struct clk clk_fout_hpll = {
- .name = "fout_hpll",
- .id = -1,
-};
-
-static struct clk *clk_src_hpll_list[] = {
- [0] = &clk_27m,
- [1] = &clk_fout_hpll,
-};
-
-static struct clksrc_sources clk_src_hpll = {
- .sources = clk_src_hpll_list,
- .nr_sources = ARRAY_SIZE(clk_src_hpll_list),
-};
-
-static struct clksrc_clk clk_mout_hpll = {
- .clk = {
- .name = "mout_hpll",
- .id = -1,
- },
- .sources = &clk_src_hpll,
- .reg_src = { .reg = S5PC100_CLKSRC0, .shift = 12, .size = 1, },
-};
-
-/* Peripherals */
-/*
- * The peripheral clocks are all controlled via clocksource followed
- * by an optional divider and gate stage. We currently roll this into
- * one clock which hides the intermediate clock from the mux.
- *
- * Note, the JPEG clock can only be an even divider...
- *
- * The scaler and LCD clocks depend on the S5PC100 version, and also
- * have a common parent divisor so are not included here.
- */
-
-static struct clk clk_iis_cd0 = {
- .name = "iis_cdclk0",
- .id = -1,
-};
-
-static struct clk clk_iis_cd1 = {
- .name = "iis_cdclk1",
- .id = -1,
-};
-
-static struct clk clk_iis_cd2 = {
- .name = "iis_cdclk2",
- .id = -1,
-};
-
-static struct clk clk_pcm_cd0 = {
- .name = "pcm_cdclk0",
- .id = -1,
-};
-
-static struct clk clk_pcm_cd1 = {
- .name = "pcm_cdclk1",
- .id = -1,
-};
-
-static struct clk *clkset_audio0_list[] = {
- &clk_mout_epll.clk,
- &clk_dout_mpll,
- &clk_fin_epll,
- &clk_iis_cd0,
- &clk_pcm_cd0,
- &clk_mout_hpll.clk,
-};
-
-static struct clksrc_sources clkset_audio0 = {
- .sources = clkset_audio0_list,
- .nr_sources = ARRAY_SIZE(clkset_audio0_list),
-};
-
-static struct clk *clkset_spi_list[] = {
- &clk_mout_epll.clk,
- &clk_dout_mpll2,
- &clk_fin_epll,
- &clk_mout_hpll.clk,
-};
-
-static struct clksrc_sources clkset_spi = {
- .sources = clkset_spi_list,
- .nr_sources = ARRAY_SIZE(clkset_spi_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 clk *clkset_audio1_list[] = {
- &clk_mout_epll.clk,
- &clk_dout_mpll,
- &clk_fin_epll,
- &clk_iis_cd1,
- &clk_pcm_cd1,
- &clk_mout_hpll.clk,
-};
-
-static struct clksrc_sources clkset_audio1 = {
- .sources = clkset_audio1_list,
- .nr_sources = ARRAY_SIZE(clkset_audio1_list),
-};
-
-static struct clk *clkset_audio2_list[] = {
- &clk_mout_epll.clk,
- &clk_dout_mpll,
- &clk_fin_epll,
- &clk_iis_cd2,
- &clk_mout_hpll.clk,
-};
-
-static struct clksrc_sources clkset_audio2 = {
- .sources = clkset_audio2_list,
- .nr_sources = ARRAY_SIZE(clkset_audio2_list),
-};
-
-static struct clksrc_clk clksrc_audio[] = {
- {
- .clk = {
- .name = "audio-bus",
- .id = 0,
- .ctrlbit = S5PC100_CLKGATE_SCLK1_AUDIO0,
- .enable = s5pc100_sclk1_ctrl,
- },
- .sources = &clkset_audio0,
- .reg_div = { .reg = S5PC100_CLKDIV4, .shift = 12, .size = 4, },
- .reg_src = { .reg = S5PC100_CLKSRC3, .shift = 12, .size = 3, },
- }, {
- .clk = {
- .name = "audio-bus",
- .id = 1,
- .ctrlbit = S5PC100_CLKGATE_SCLK1_AUDIO1,
- .enable = s5pc100_sclk1_ctrl,
- },
- .sources = &clkset_audio1,
- .reg_div = { .reg = S5PC100_CLKDIV4, .shift = 16, .size = 4, },
- .reg_src = { .reg = S5PC100_CLKSRC3, .shift = 16, .size = 3, },
- }, {
- .clk = {
- .name = "audio-bus",
- .id = 2,
- .ctrlbit = S5PC100_CLKGATE_SCLK1_AUDIO2,
- .enable = s5pc100_sclk1_ctrl,
- },
- .sources = &clkset_audio2,
- .reg_div = { .reg = S5PC100_CLKDIV4, .shift = 20, .size = 4, },
- .reg_src = { .reg = S5PC100_CLKSRC3, .shift = 20, .size = 3, },
- },
-};
-
-static struct clk *clkset_spdif_list[] = {
- &clksrc_audio[0].clk,
- &clksrc_audio[1].clk,
- &clksrc_audio[2].clk,
-};
-
-static struct clksrc_sources clkset_spdif = {
- .sources = clkset_spdif_list,
- .nr_sources = ARRAY_SIZE(clkset_spdif_list),
-};
-
-static struct clk *clkset_lcd_fimc_list[] = {
- &clk_mout_epll.clk,
- &clk_dout_mpll,
- &clk_mout_hpll.clk,
- &clk_vclk_54m,
-};
-
-static struct clksrc_sources clkset_lcd_fimc = {
- .sources = clkset_lcd_fimc_list,
- .nr_sources = ARRAY_SIZE(clkset_lcd_fimc_list),
-};
-
-static struct clk *clkset_mmc_list[] = {
- &clk_mout_epll.clk,
- &clk_dout_mpll,
- &clk_fin_epll,
- &clk_mout_hpll.clk ,
-};
-
-static struct clksrc_sources clkset_mmc = {
- .sources = clkset_mmc_list,
- .nr_sources = ARRAY_SIZE(clkset_mmc_list),
-};
-
-static struct clk *clkset_usbhost_list[] = {
- &clk_mout_epll.clk,
- &clk_dout_mpll,
- &clk_mout_hpll.clk,
- &clk_48m,
-};
-
-static struct clksrc_sources clkset_usbhost = {
- .sources = clkset_usbhost_list,
- .nr_sources = ARRAY_SIZE(clkset_usbhost_list),
-};
-
-static struct clksrc_clk clksrc_clks[] = {
- {
- .clk = {
- .name = "spi_bus",
- .id = 0,
- .ctrlbit = S5PC100_CLKGATE_SCLK0_SPI0,
- .enable = s5pc100_sclk0_ctrl,
-
- },
- .sources = &clkset_spi,
- .reg_div = { .reg = S5PC100_CLKDIV2, .shift = 4, .size = 4, },
- .reg_src = { .reg = S5PC100_CLKSRC1, .shift = 4, .size = 2, },
- }, {
- .clk = {
- .name = "spi_bus",
- .id = 1,
- .ctrlbit = S5PC100_CLKGATE_SCLK0_SPI1,
- .enable = s5pc100_sclk0_ctrl,
- },
- .sources = &clkset_spi,
- .reg_div = { .reg = S5PC100_CLKDIV2, .shift = 8, .size = 4, },
- .reg_src = { .reg = S5PC100_CLKSRC1, .shift = 8, .size = 2, },
- }, {
- .clk = {
- .name = "spi_bus",
- .id = 2,
- .ctrlbit = S5PC100_CLKGATE_SCLK0_SPI2,
- .enable = s5pc100_sclk0_ctrl,
- },
- .sources = &clkset_spi,
- .reg_div = { .reg = S5PC100_CLKDIV2, .shift = 12, .size = 4, },
- .reg_src = { .reg = S5PC100_CLKSRC1, .shift = 12, .size = 2, },
- }, {
- .clk = {
- .name = "uclk1",
- .id = -1,
- .ctrlbit = S5PC100_CLKGATE_SCLK0_UART,
- .enable = s5pc100_sclk0_ctrl,
- },
- .sources = &clkset_uart,
- .reg_div = { .reg = S5PC100_CLKDIV2, .shift = 0, .size = 3, },
- .reg_src = { .reg = S5PC100_CLKSRC1, .shift = 0, .size = 1, },
- }, {
- .clk = {
- .name = "spdif",
- .id = -1,
- },
- .sources = &clkset_spdif,
- .reg_src = { .reg = S5PC100_CLKSRC3, .shift = 24, .size = 2, },
- }, {
- .clk = {
- .name = "lcd",
- .id = -1,
- .ctrlbit = S5PC100_CLKGATE_SCLK1_LCD,
- .enable = s5pc100_sclk1_ctrl,
- },
- .sources = &clkset_lcd_fimc,
- .reg_div = { .reg = S5PC100_CLKDIV3, .shift = 12, .size = 4, },
- .reg_src = { .reg = S5PC100_CLKSRC2, .shift = 12, .size = 2, },
- }, {
- .clk = {
- .name = "fimc",
- .id = 0,
- .ctrlbit = S5PC100_CLKGATE_SCLK1_FIMC0,
- .enable = s5pc100_sclk1_ctrl,
- },
- .sources = &clkset_lcd_fimc,
- .reg_div = { .reg = S5PC100_CLKDIV3, .shift = 16, .size = 4, },
- .reg_src = { .reg = S5PC100_CLKSRC2, .shift = 16, .size = 2, },
- }, {
- .clk = {
- .name = "fimc",
- .id = 1,
- .ctrlbit = S5PC100_CLKGATE_SCLK1_FIMC1,
- .enable = s5pc100_sclk1_ctrl,
- },
- .sources = &clkset_lcd_fimc,
- .reg_div = { .reg = S5PC100_CLKDIV3, .shift = 20, .size = 4, },
- .reg_src = { .reg = S5PC100_CLKSRC2, .shift = 20, .size = 2, },
- }, {
- .clk = {
- .name = "fimc",
- .id = 2,
- .ctrlbit = S5PC100_CLKGATE_SCLK1_FIMC2,
- .enable = s5pc100_sclk1_ctrl,
- },
- .sources = &clkset_lcd_fimc,
- .reg_div = { .reg = S5PC100_CLKDIV3, .shift = 24, .size = 4, },
- .reg_src = { .reg = S5PC100_CLKSRC2, .shift = 24, .size = 2, },
- }, {
- .clk = {
- .name = "mmc_bus",
- .id = 0,
- .ctrlbit = S5PC100_CLKGATE_SCLK0_MMC0,
- .enable = s5pc100_sclk0_ctrl,
- },
- .sources = &clkset_mmc,
- .reg_div = { .reg = S5PC100_CLKDIV3, .shift = 0, .size = 4, },
- .reg_src = { .reg = S5PC100_CLKSRC2, .shift = 0, .size = 2, },
- }, {
- .clk = {
- .name = "mmc_bus",
- .id = 1,
- .ctrlbit = S5PC100_CLKGATE_SCLK0_MMC1,
- .enable = s5pc100_sclk0_ctrl,
- },
- .sources = &clkset_mmc,
- .reg_div = { .reg = S5PC100_CLKDIV3, .shift = 4, .size = 4, },
- .reg_src = { .reg = S5PC100_CLKSRC2, .shift = 4, .size = 2, },
- }, {
- .clk = {
- .name = "mmc_bus",
- .id = 2,
- .ctrlbit = S5PC100_CLKGATE_SCLK0_MMC2,
- .enable = s5pc100_sclk0_ctrl,
- },
- .sources = &clkset_mmc,
- .reg_div = { .reg = S5PC100_CLKDIV3, .shift = 8, .size = 4, },
- .reg_src = { .reg = S5PC100_CLKSRC2, .shift = 8, .size = 2, },
- }, {
- .clk = {
- .name = "usbhost",
- .id = -1,
- .ctrlbit = S5PC100_CLKGATE_SCLK0_USBHOST,
- .enable = s5pc100_sclk0_ctrl,
- },
- .sources = &clkset_usbhost,
- .reg_div = { .reg = S5PC100_CLKDIV2, .shift = 20, .size = 4, },
- .reg_src = { .reg = S5PC100_CLKSRC1, .shift = 20, .size = 2, },
- }
-};
-
-/* Clock initialisation code */
-
-static struct clksrc_clk *init_parents[] = {
- &clk_mout_apll,
- &clk_mout_mpll,
- &clk_mout_am,
- &clk_mout_onenand,
- &clk_mout_epll,
- &clk_mout_hpll,
-};
-
-#define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1)
-
-void __init_or_cpufreq s5pc100_setup_clocks(void)
-{
- struct clk *xtal_clk;
- unsigned long xtal;
- unsigned long armclk;
- unsigned long hclkd0;
- unsigned long hclk;
- unsigned long pclkd0;
- unsigned long pclk;
- unsigned long apll, mpll, epll, hpll;
- unsigned int ptr;
- u32 clkdiv0, clkdiv1;
-
- printk(KERN_DEBUG "%s: registering clocks\n", __func__);
-
- clkdiv0 = __raw_readl(S5PC100_CLKDIV0);
- clkdiv1 = __raw_readl(S5PC100_CLKDIV1);
-
- printk(KERN_DEBUG "%s: clkdiv0 = %08x, clkdiv1 = %08x\n", __func__, clkdiv0, clkdiv1);
-
- xtal_clk = clk_get(NULL, "xtal");
- BUG_ON(IS_ERR(xtal_clk));
-
- xtal = clk_get_rate(xtal_clk);
- clk_put(xtal_clk);
-
- printk(KERN_DEBUG "%s: xtal is %ld\n", __func__, xtal);
-
- apll = s5pc1xx_get_pll(xtal, __raw_readl(S5PC100_APLL_CON));
- mpll = s5pc1xx_get_pll(xtal, __raw_readl(S5PC100_MPLL_CON));
- epll = s5pc1xx_get_pll(xtal, __raw_readl(S5PC100_EPLL_CON));
- hpll = s5pc1xx_get_pll(xtal, __raw_readl(S5PC100_HPLL_CON));
-
- printk(KERN_INFO "S5PC100: Apll=%ld.%03ld Mhz, Mpll=%ld.%03ld Mhz"
- ", Epll=%ld.%03ld Mhz, Hpll=%ld.%03ld Mhz\n",
- print_mhz(apll), print_mhz(mpll),
- print_mhz(epll), print_mhz(hpll));
-
- armclk = apll / GET_DIV(clkdiv0, S5PC100_CLKDIV0_APLL);
- armclk = armclk / GET_DIV(clkdiv0, S5PC100_CLKDIV0_ARM);
- hclkd0 = armclk / GET_DIV(clkdiv0, S5PC100_CLKDIV0_D0);
- pclkd0 = hclkd0 / GET_DIV(clkdiv0, S5PC100_CLKDIV0_PCLKD0);
- hclk = mpll / GET_DIV(clkdiv1, S5PC100_CLKDIV1_D1);
- pclk = hclk / GET_DIV(clkdiv1, S5PC100_CLKDIV1_PCLKD1);
-
- printk(KERN_INFO "S5PC100: ARMCLK=%ld.%03ld MHz, HCLKD0=%ld.%03ld MHz,"
- " PCLKD0=%ld.%03ld MHz\n, HCLK=%ld.%03ld MHz,"
- " PCLK=%ld.%03ld MHz\n",
- print_mhz(armclk), print_mhz(hclkd0),
- print_mhz(pclkd0), print_mhz(hclk), print_mhz(pclk));
-
- clk_fout_apll.rate = apll;
- clk_fout_mpll.rate = mpll;
- clk_fout_epll.rate = epll;
- clk_fout_hpll.rate = hpll;
-
- clk_h.rate = hclk;
- clk_p.rate = pclk;
- clk_f.rate = armclk;
-
- for (ptr = 0; ptr < ARRAY_SIZE(init_parents); ptr++)
- s3c_set_clksrc(init_parents[ptr], true);
-
- for (ptr = 0; ptr < ARRAY_SIZE(clksrc_audio); ptr++)
- s3c_set_clksrc(clksrc_audio + ptr, true);
-
- for (ptr = 0; ptr < ARRAY_SIZE(clksrc_clks); ptr++)
- s3c_set_clksrc(clksrc_clks + ptr, true);
-}
-
-static struct clk *clks[] __initdata = {
- &clk_ext_xtal_mux,
- &clk_dout_apll,
- &clk_dout_d0_bus,
- &clk_dout_pclkd0,
- &clk_dout_apll2,
- &clk_mout_apll.clk,
- &clk_mout_mpll.clk,
- &clk_mout_epll.clk,
- &clk_mout_hpll.clk,
- &clk_mout_am.clk,
- &clk_dout_d1_bus,
- &clk_mout_onenand.clk,
- &clk_dout_pclkd1,
- &clk_dout_mpll2,
- &clk_dout_cam,
- &clk_dout_mpll,
- &clk_fout_epll,
- &clk_iis_cd0,
- &clk_iis_cd1,
- &clk_iis_cd2,
- &clk_pcm_cd0,
- &clk_pcm_cd1,
- &clk_arm,
-};
-
-void __init s5pc100_register_clocks(void)
-{
- struct clk *clkp;
- int ret;
- int ptr;
-
- for (ptr = 0; ptr < ARRAY_SIZE(clks); ptr++) {
- clkp = clks[ptr];
- ret = s3c24xx_register_clock(clkp);
- if (ret < 0) {
- printk(KERN_ERR "Failed to register clock %s (%d)\n",
- clkp->name, ret);
- }
- }
-
- s3c_register_clksrc(clksrc_audio, ARRAY_SIZE(clksrc_audio));
- s3c_register_clksrc(clksrc_clks, ARRAY_SIZE(clksrc_clks));
-}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.