From 070b8b436b5510a213b7f38e120ff6cc4d0e89a1 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Wed, 2 Jul 2014 07:50:15 +0900 Subject: ARM: S5P64X0: no more support S5P6440 and S5P6450 SoCs This patch removes supporting codes for s5p6440 and s5p6450 because seems no more used now. And if its supporting is required, DT based codes should be supprted next time. Acked-by: Arnd Bergmann Cc: Russell King Signed-off-by: Kukjin Kim --- arch/arm/mach-s5p64x0/clock.c | 236 ------------------------------------------ 1 file changed, 236 deletions(-) delete mode 100644 arch/arm/mach-s5p64x0/clock.c (limited to 'arch/arm/mach-s5p64x0/clock.c') diff --git a/arch/arm/mach-s5p64x0/clock.c b/arch/arm/mach-s5p64x0/clock.c deleted file mode 100644 index 57e718957ef3..000000000000 --- a/arch/arm/mach-s5p64x0/clock.c +++ /dev/null @@ -1,236 +0,0 @@ -/* linux/arch/arm/mach-s5p64x0/clock.c - * - * Copyright (c) 2010 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * S5P64X0 - 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 -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -#include "common.h" - -struct clksrc_clk clk_mout_apll = { - .clk = { - .name = "mout_apll", - .id = -1, - }, - .sources = &clk_src_apll, - .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 0, .size = 1 }, -}; - -struct clksrc_clk clk_mout_mpll = { - .clk = { - .name = "mout_mpll", - .id = -1, - }, - .sources = &clk_src_mpll, - .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 1, .size = 1 }, -}; - -struct clksrc_clk clk_mout_epll = { - .clk = { - .name = "mout_epll", - .id = -1, - }, - .sources = &clk_src_epll, - .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 2, .size = 1 }, -}; - -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 << S5P64X0_CLKDIV0_HCLK_SHIFT)}, - {L1 * 1000, (1 << ARM_DIV_RATIO_SHIFT), (1 << S5P64X0_CLKDIV0_HCLK_SHIFT)}, - {L2 * 1000, (3 << ARM_DIV_RATIO_SHIFT), (0 << S5P64X0_CLKDIV0_HCLK_SHIFT)}, -}; - -static unsigned long s5p64x0_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 s5p64x0_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 s5p64x0_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) & - ~(S5P64X0_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) & - ~(S5P64X0_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 s5p64x0_clkarm_ops = { - .get_rate = s5p64x0_armclk_get_rate, - .set_rate = s5p64x0_armclk_set_rate, - .round_rate = s5p64x0_armclk_round_rate, -}; - -struct clksrc_clk clk_armclk = { - .clk = { - .name = "armclk", - .id = 1, - .parent = &clk_mout_apll.clk, - .ops = &s5p64x0_clkarm_ops, - }, - .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 0, .size = 4 }, -}; - -struct clksrc_clk clk_dout_mpll = { - .clk = { - .name = "dout_mpll", - .id = -1, - .parent = &clk_mout_mpll.clk, - }, - .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 4, .size = 1 }, -}; - -static struct clk *clkset_hclk_low_list[] = { - &clk_mout_apll.clk, - &clk_mout_mpll.clk, -}; - -struct clksrc_sources clkset_hclk_low = { - .sources = clkset_hclk_low_list, - .nr_sources = ARRAY_SIZE(clkset_hclk_low_list), -}; - -int s5p64x0_pclk_ctrl(struct clk *clk, int enable) -{ - return s5p_gatectrl(S5P64X0_CLK_GATE_PCLK, clk, enable); -} - -int s5p64x0_hclk0_ctrl(struct clk *clk, int enable) -{ - return s5p_gatectrl(S5P64X0_CLK_GATE_HCLK0, clk, enable); -} - -int s5p64x0_hclk1_ctrl(struct clk *clk, int enable) -{ - return s5p_gatectrl(S5P64X0_CLK_GATE_HCLK1, clk, enable); -} - -int s5p64x0_sclk_ctrl(struct clk *clk, int enable) -{ - return s5p_gatectrl(S5P64X0_CLK_GATE_SCLK0, clk, enable); -} - -int s5p64x0_sclk1_ctrl(struct clk *clk, int enable) -{ - return s5p_gatectrl(S5P64X0_CLK_GATE_SCLK1, clk, enable); -} - -int s5p64x0_mem_ctrl(struct clk *clk, int enable) -{ - return s5p_gatectrl(S5P64X0_CLK_GATE_MEM0, clk, enable); -} - -int s5p64x0_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(S5P64X0_OTHERS); - if (enable) - val |= S5P64X0_OTHERS_USB_SIG_MASK; - else - val &= ~S5P64X0_OTHERS_USB_SIG_MASK; - - __raw_writel(val, S5P64X0_OTHERS); - - local_irq_restore(flags); - - return 0; -} -- cgit v1.2.3