mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 04:34:11 +08:00
4a31bd28e8
Remove more custom stuff by simply converting the Nomadik machine to use generic clocks and move the driver to drivers/clk. Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Mike Turquette <mturquette@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
#include <linux/clk.h>
|
|
#include <linux/clkdev.h>
|
|
#include <linux/err.h>
|
|
#include <linux/io.h>
|
|
#include <linux/clk-provider.h>
|
|
|
|
/*
|
|
* The Nomadik clock tree is described in the STN8815A12 DB V4.2
|
|
* reference manual for the chip, page 94 ff.
|
|
*/
|
|
|
|
void __init nomadik_clk_init(void)
|
|
{
|
|
struct clk *clk;
|
|
|
|
clk = clk_register_fixed_rate(NULL, "apb_pclk", NULL, CLK_IS_ROOT, 0);
|
|
clk_register_clkdev(clk, "apb_pclk", NULL);
|
|
clk_register_clkdev(clk, NULL, "gpio.0");
|
|
clk_register_clkdev(clk, NULL, "gpio.1");
|
|
clk_register_clkdev(clk, NULL, "gpio.2");
|
|
clk_register_clkdev(clk, NULL, "gpio.3");
|
|
clk_register_clkdev(clk, NULL, "rng");
|
|
|
|
/*
|
|
* The 2.4 MHz TIMCLK reference clock is active at boot time, this is
|
|
* actually the MXTALCLK @19.2 MHz divided by 8. This clock is used
|
|
* by the timers and watchdog. See page 105 ff.
|
|
*/
|
|
clk = clk_register_fixed_rate(NULL, "TIMCLK", NULL, CLK_IS_ROOT,
|
|
2400000);
|
|
clk_register_clkdev(clk, NULL, "mtu0");
|
|
clk_register_clkdev(clk, NULL, "mtu1");
|
|
|
|
/*
|
|
* At boot time, PLL2 is set to generate a set of fixed clocks,
|
|
* one of them is CLK48, the 48 MHz clock, routed to the UART, MMC/SD
|
|
* I2C, IrDA, USB and SSP blocks.
|
|
*/
|
|
clk = clk_register_fixed_rate(NULL, "CLK48", NULL, CLK_IS_ROOT,
|
|
48000000);
|
|
clk_register_clkdev(clk, NULL, "uart0");
|
|
clk_register_clkdev(clk, NULL, "uart1");
|
|
clk_register_clkdev(clk, NULL, "mmci");
|
|
clk_register_clkdev(clk, NULL, "ssp");
|
|
clk_register_clkdev(clk, NULL, "nmk-i2c.0");
|
|
clk_register_clkdev(clk, NULL, "nmk-i2c.1");
|
|
}
|