mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 20:23:57 +08:00
50f2de6126
It moves a bunch of header files included in hardware.h and itself from mach-imx/include/mach to mach-imx, and updates users to include hardware.h rather than mach/hardware.h. The files in mach-imx/devices will need to include "../hardware.h". Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
116 lines
4.6 KiB
C
116 lines
4.6 KiB
C
/*
|
|
* Copyright (C) 2008 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
|
|
*
|
|
* 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.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/io.h>
|
|
#include <linux/clkdev.h>
|
|
#include <linux/err.h>
|
|
|
|
#include "clk.h"
|
|
#include "common.h"
|
|
#include "hardware.h"
|
|
|
|
/* CCM register addresses */
|
|
#define IO_ADDR_CCM(off) (MX1_IO_ADDRESS(MX1_CCM_BASE_ADDR + (off)))
|
|
|
|
#define CCM_CSCR IO_ADDR_CCM(0x0)
|
|
#define CCM_MPCTL0 IO_ADDR_CCM(0x4)
|
|
#define CCM_SPCTL0 IO_ADDR_CCM(0xc)
|
|
#define CCM_PCDR IO_ADDR_CCM(0x20)
|
|
|
|
/* SCM register addresses */
|
|
#define IO_ADDR_SCM(off) (MX1_IO_ADDRESS(MX1_SCM_BASE_ADDR + (off)))
|
|
|
|
#define SCM_GCCR IO_ADDR_SCM(0xc)
|
|
|
|
static const char *prem_sel_clks[] = { "clk32_premult", "clk16m", };
|
|
static const char *clko_sel_clks[] = { "per1", "hclk", "clk48m", "clk16m", "prem",
|
|
"fclk", };
|
|
enum imx1_clks {
|
|
dummy, clk32, clk16m_ext, clk16m, clk32_premult, prem, mpll, spll, mcu,
|
|
fclk, hclk, clk48m, per1, per2, per3, clko, dma_gate, csi_gate,
|
|
mma_gate, usbd_gate, clk_max
|
|
};
|
|
|
|
static struct clk *clk[clk_max];
|
|
|
|
int __init mx1_clocks_init(unsigned long fref)
|
|
{
|
|
int i;
|
|
|
|
clk[dummy] = imx_clk_fixed("dummy", 0);
|
|
clk[clk32] = imx_clk_fixed("clk32", fref);
|
|
clk[clk16m_ext] = imx_clk_fixed("clk16m_ext", 16000000);
|
|
clk[clk16m] = imx_clk_gate("clk16m", "clk16m_ext", CCM_CSCR, 17);
|
|
clk[clk32_premult] = imx_clk_fixed_factor("clk32_premult", "clk32", 512, 1);
|
|
clk[prem] = imx_clk_mux("prem", CCM_CSCR, 16, 1, prem_sel_clks,
|
|
ARRAY_SIZE(prem_sel_clks));
|
|
clk[mpll] = imx_clk_pllv1("mpll", "clk32_premult", CCM_MPCTL0);
|
|
clk[spll] = imx_clk_pllv1("spll", "prem", CCM_SPCTL0);
|
|
clk[mcu] = imx_clk_divider("mcu", "clk32_premult", CCM_CSCR, 15, 1);
|
|
clk[fclk] = imx_clk_divider("fclk", "mpll", CCM_CSCR, 15, 1);
|
|
clk[hclk] = imx_clk_divider("hclk", "spll", CCM_CSCR, 10, 4);
|
|
clk[clk48m] = imx_clk_divider("clk48m", "spll", CCM_CSCR, 26, 3);
|
|
clk[per1] = imx_clk_divider("per1", "spll", CCM_PCDR, 0, 4);
|
|
clk[per2] = imx_clk_divider("per2", "spll", CCM_PCDR, 4, 4);
|
|
clk[per3] = imx_clk_divider("per3", "spll", CCM_PCDR, 16, 7);
|
|
clk[clko] = imx_clk_mux("clko", CCM_CSCR, 29, 3, clko_sel_clks,
|
|
ARRAY_SIZE(clko_sel_clks));
|
|
clk[dma_gate] = imx_clk_gate("dma_gate", "hclk", SCM_GCCR, 4);
|
|
clk[csi_gate] = imx_clk_gate("csi_gate", "hclk", SCM_GCCR, 2);
|
|
clk[mma_gate] = imx_clk_gate("mma_gate", "hclk", SCM_GCCR, 1);
|
|
clk[usbd_gate] = imx_clk_gate("usbd_gate", "clk48m", SCM_GCCR, 0);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(clk); i++)
|
|
if (IS_ERR(clk[i]))
|
|
pr_err("imx1 clk %d: register failed with %ld\n",
|
|
i, PTR_ERR(clk[i]));
|
|
|
|
clk_register_clkdev(clk[dma_gate], "ahb", "imx1-dma");
|
|
clk_register_clkdev(clk[hclk], "ipg", "imx1-dma");
|
|
clk_register_clkdev(clk[csi_gate], NULL, "mx1-camera.0");
|
|
clk_register_clkdev(clk[mma_gate], "mma", NULL);
|
|
clk_register_clkdev(clk[usbd_gate], NULL, "imx_udc.0");
|
|
clk_register_clkdev(clk[per1], "per", "imx-gpt.0");
|
|
clk_register_clkdev(clk[hclk], "ipg", "imx-gpt.0");
|
|
clk_register_clkdev(clk[per1], "per", "imx1-uart.0");
|
|
clk_register_clkdev(clk[hclk], "ipg", "imx1-uart.0");
|
|
clk_register_clkdev(clk[per1], "per", "imx1-uart.1");
|
|
clk_register_clkdev(clk[hclk], "ipg", "imx1-uart.1");
|
|
clk_register_clkdev(clk[per1], "per", "imx1-uart.2");
|
|
clk_register_clkdev(clk[hclk], "ipg", "imx1-uart.2");
|
|
clk_register_clkdev(clk[hclk], NULL, "imx1-i2c.0");
|
|
clk_register_clkdev(clk[per2], "per", "imx1-cspi.0");
|
|
clk_register_clkdev(clk[dummy], "ipg", "imx1-cspi.0");
|
|
clk_register_clkdev(clk[per2], "per", "imx1-cspi.1");
|
|
clk_register_clkdev(clk[dummy], "ipg", "imx1-cspi.1");
|
|
clk_register_clkdev(clk[per2], NULL, "imx-mmc.0");
|
|
clk_register_clkdev(clk[per2], "per", "imx1-fb.0");
|
|
clk_register_clkdev(clk[dummy], "ipg", "imx1-fb.0");
|
|
clk_register_clkdev(clk[dummy], "ahb", "imx1-fb.0");
|
|
clk_register_clkdev(clk[hclk], "mshc", NULL);
|
|
clk_register_clkdev(clk[per3], "ssi", NULL);
|
|
clk_register_clkdev(clk[clk32], NULL, "imx1-rtc.0");
|
|
clk_register_clkdev(clk[clko], "clko", NULL);
|
|
|
|
mxc_timer_init(MX1_IO_ADDRESS(MX1_TIM1_BASE_ADDR), MX1_TIM1_INT);
|
|
|
|
return 0;
|
|
}
|