From e4f44f82691e927a2f5eb582793454e052b920c7 Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Thu, 13 May 2010 09:27:09 +0900 Subject: [PATCH] ARM: S5P6440: Remove usage of clk_h and add clk_hclk clock The clk_h clock is of type 'struct clk' whereas on S5P6440, the hclk is more suitable to be of type 'struct clksrc_clk' (since hclk clock is divided version of armclk) This patch modifies the following. 1. Adds the 'clk_hclk' clock which is of type 'struct clksrc_clk'. 2. Removes all references to the clk_h clock. 3. Addes clk_hclk into the list of sysclks. 4. The clock rate 'hclk' is modified to be derived from clk_hclk. Signed-off-by: Thomas Abraham Signed-off-by: Kukjin Kim Signed-off-by: Ben Dooks --- arch/arm/mach-s5p6440/clock.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-s5p6440/clock.c b/arch/arm/mach-s5p6440/clock.c index 2c6dd54..bc0458e 100644 --- a/arch/arm/mach-s5p6440/clock.c +++ b/arch/arm/mach-s5p6440/clock.c @@ -266,6 +266,15 @@ static struct clksrc_clk clk_dout_mpll = { .reg_div = { .reg = S5P_CLK_DIV0, .shift = 4, .size = 1 }, }; +static struct clksrc_clk clk_hclk = { + .clk = { + .name = "clk_hclk", + .id = -1, + .parent = &clk_armclk.clk, + }, + .reg_div = { .reg = S5P_CLK_DIV0, .shift = 8, .size = 4 }, +}; + int s5p6440_clk48m_ctrl(struct clk *clk, int enable) { unsigned long flags; @@ -321,7 +330,7 @@ static struct clk init_clocks_disable[] = { { .name = "nand", .id = -1, - .parent = &clk_h, + .parent = &clk_hclk.clk, .enable = s5p6440_mem_ctrl, .ctrlbit = S5P_CLKCON_MEM0_HCLK_NFCON, }, { @@ -580,6 +589,7 @@ static struct clksrc_clk *sysclks[] = { &clk_mout_mpll, &clk_dout_mpll, &clk_armclk, + &clk_hclk, }; void __init_or_cpufreq s5p6440_setup_clocks(void) @@ -628,7 +638,7 @@ void __init_or_cpufreq s5p6440_setup_clocks(void) print_mhz(apll), print_mhz(mpll), print_mhz(epll)); fclk = clk_get_rate(&clk_armclk.clk); - hclk = fclk / GET_DIV(clkdiv0, S5P_CLKDIV0_HCLK); + hclk = clk_get_rate(&clk_hclk.clk); pclk = hclk / GET_DIV(clkdiv0, S5P_CLKDIV0_PCLK); if (__raw_readl(S5P_OTHERS) & S5P_OTHERS_HCLK_LOW_SEL_MPLL) { -- 2.7.4