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ARM: S5PV210: Remove usage of clk_p66 and add clk_pclk_psys clock

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The clk_p83 clock, which is the PCLK clock for PSYS domain, is of
type 'struct clk' whereas on S5PV210, this clock is suitable to be
of type clksrc_clk clock (since it has a clock divider). So this
patch replaces the 'struct clk' type clock to 'struct clksrc_clk'
type clock for the PCLK PSYS clock.

This patch modifies the following.

1. Removes definitions and usage of 'clk_p66' clock.
2. Adds 'clk_pclk_psys' clock which is of type 'struct clksrc_clk'.
3. Replaces all usage of clk_p66 with clk_pclk_psys clock.
4. Adds clk_pclk_psys into list of clocks to be registered.
5. Removes the sys_clks array since it is no longer required.
   Also the registration of clocks in sys_clks is also removed.
6. Remove the 'GET_DIV' as it is no longer required.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Thomas Abraham 2010-05-17 09:38:50 +09:00 committed by Ben Dooks
parent 58772cd344
commit f44cf78b6b
1 changed files with 30 additions and 36 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

66
arch/arm/mach-s5pv210/clock.c
View file

@ -144,6 +144,15 @@ static struct clksrc_clk clk_hclk_psys = {
.reg_div = { .reg = S5P_CLK_DIV0, .shift = 24, .size = 4 },
};
static struct clksrc_clk clk_pclk_psys = {
.clk = {
.name = "pclk_psys",
.id = -1,
.parent = &clk_hclk_psys.clk,
},
.reg_div = { .reg = S5P_CLK_DIV0, .shift = 28, .size = 3 },
};
static int s5pv210_clk_ip0_ctrl(struct clk *clk, int enable)
{
return s5p_gatectrl(S5P_CLKGATE_IP0, clk, enable);
@ -164,15 +173,6 @@ static int s5pv210_clk_ip3_ctrl(struct clk *clk, int enable)
return s5p_gatectrl(S5P_CLKGATE_IP3, clk, enable);
}
static struct clk clk_p66 = {
.name = "pclk66",
.id = -1,
};
static struct clk *sys_clks[] = {
&clk_p66
};
static unsigned long s5pv210_clk_imem_get_rate(struct clk *clk)
{
return clk_get_rate(clk->parent) / 2;
@ -240,73 +240,73 @@ static struct clk init_clocks_disable[] = {
}, {
.name = "systimer",
.id = -1,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<16),
}, {
.name = "watchdog",
.id = -1,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<22),
}, {
.name = "rtc",
.id = -1,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<15),
}, {
.name = "i2c",
.id = 0,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<7),
}, {
.name = "i2c",
.id = 1,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<8),
}, {
.name = "i2c",
.id = 2,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<9),
}, {
.name = "spi",
.id = 0,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<12),
}, {
.name = "spi",
.id = 1,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<13),
}, {
.name = "spi",
.id = 2,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<14),
}, {
.name = "timers",
.id = -1,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<23),
}, {
.name = "adc",
.id = -1,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<24),
}, {
.name = "keypad",
.id = -1,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<21),
}, {
@ -341,25 +341,25 @@ static struct clk init_clocks[] = {
}, {
.name = "uart",
.id = 0,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<7),
}, {
.name = "uart",
.id = 1,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<8),
}, {
.name = "uart",
.id = 2,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<9),
}, {
.name = "uart",
.id = 3,
.parent = &clk_p66,
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip3_ctrl,
.ctrlbit = (1<<10),
},
@ -401,10 +401,9 @@ static struct clksrc_clk *sysclks[] = {
&clk_hclk_psys,
&clk_pclk_msys,
&clk_pclk_dsys,
&clk_pclk_psys,
};
#define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1)
void __init_or_cpufreq s5pv210_setup_clocks(void)
{
struct clk *xtal_clk;
@ -415,7 +414,7 @@ void __init_or_cpufreq s5pv210_setup_clocks(void)
unsigned long hclk_psys;
unsigned long pclk_msys;
unsigned long pclk_dsys;
unsigned long pclk66;
unsigned long pclk_psys;
unsigned long apll;
unsigned long mpll;
unsigned long epll;
@ -455,17 +454,16 @@ void __init_or_cpufreq s5pv210_setup_clocks(void)
hclk_psys = clk_get_rate(&clk_hclk_psys.clk);
pclk_msys = clk_get_rate(&clk_pclk_msys.clk);
pclk_dsys = clk_get_rate(&clk_pclk_dsys.clk);
pclk66 = hclk_psys / GET_DIV(clkdiv0, S5P_CLKDIV0_PCLK66);
pclk_psys = clk_get_rate(&clk_pclk_psys.clk);
printk(KERN_INFO "S5PV210: ARMCLK=%ld, HCLKM=%ld, HCLKD=%ld\n"
"HCLKP=%ld, PCLKM=%ld, PCLKD=%ld, PCLKP=%ld\n",
armclk, hclk_msys, hclk_dsys, hclk_psys,
pclk_msys, pclk_dsys, pclk66);
pclk_msys, pclk_dsys, pclk_psys);
clk_f.rate = armclk;
clk_h.rate = hclk_psys;
clk_p.rate = pclk66;
clk_p66.rate = pclk66;
clk_p.rate = pclk_psys;
for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
s3c_set_clksrc(&clksrcs[ptr], true);
@ -490,10 +488,6 @@ void __init s5pv210_register_clocks(void)
s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
ret = s3c24xx_register_clocks(sys_clks, ARRAY_SIZE(sys_clks));
if (ret > 0)
printk(KERN_ERR "Failed to register system clocks\n");
clkp = init_clocks_disable;
for (ptr = 0; ptr < ARRAY_SIZE(init_clocks_disable); ptr++, clkp++) {
ret = s3c24xx_register_clock(clkp);