summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-rockchip
diff options
context:
space:
mode:
authorSascha Hauer <s.hauer@pengutronix.de>2015-03-09 08:30:35 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2015-03-09 08:30:35 +0100
commit55ab01c7ff16e5fcb2d91870d0ab84399512ee3f (patch)
tree62effecfbc202bf8954de3bbfab50ecb9c7992db /arch/arm/mach-rockchip
parent5c8ced1a6dec754a757d730a0205d168728c7f96 (diff)
parent84fcb04367ccf9c89f442c8a5a716cceb34413e6 (diff)
downloadbarebox-55ab01c7ff16e5fcb2d91870d0ab84399512ee3f.tar.gz
barebox-55ab01c7ff16e5fcb2d91870d0ab84399512ee3f.tar.xz
Merge branch 'for-next/rockchip'
Conflicts: arch/arm/Kconfig
Diffstat (limited to 'arch/arm/mach-rockchip')
-rw-r--r--arch/arm/mach-rockchip/Makefile1
-rw-r--r--arch/arm/mach-rockchip/include/mach/rockchip-pll.h26
-rw-r--r--arch/arm/mach-rockchip/pll.c102
3 files changed, 0 insertions, 129 deletions
diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile
index 6f4ec169e3..820eb10ac2 100644
--- a/arch/arm/mach-rockchip/Makefile
+++ b/arch/arm/mach-rockchip/Makefile
@@ -1,2 +1 @@
obj-y += core.o
-obj-y += pll.o \ No newline at end of file
diff --git a/arch/arm/mach-rockchip/include/mach/rockchip-pll.h b/arch/arm/mach-rockchip/include/mach/rockchip-pll.h
deleted file mode 100644
index c2cd888b00..0000000000
--- a/arch/arm/mach-rockchip/include/mach/rockchip-pll.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2014 Beniamino Galvani <b.galvani@gmail.com>
- *
- * 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.
- */
-
-#ifndef __MACH_ROCKCHIP_PLL_H
-#define __MACH_ROCKCHIP_PLL_H
-
-enum rk3188_plls {
- RK3188_APLL = 0, /* ARM */
- RK3188_DPLL, /* DDR */
- RK3188_CPLL, /* Codec */
- RK3188_GPLL, /* General */
-};
-
-int rk3188_pll_set_parameters(int pll, int nr, int nf, int no);
-
-#endif /* __MACH_ROCKCHIP_PLL_H */
diff --git a/arch/arm/mach-rockchip/pll.c b/arch/arm/mach-rockchip/pll.c
deleted file mode 100644
index fce192ccdb..0000000000
--- a/arch/arm/mach-rockchip/pll.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Copyright (C) 2014 Beniamino Galvani <b.galvani@gmail.com>
- *
- * Based on Linux clk driver:
- * Copyright (c) 2014 MundoReader S.L.
- *
- * 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.
- */
-
-#include <asm/io.h>
-#include <common.h>
-#include <mach/rockchip-regs.h>
-
-#define RK3188_CLK_BASE 0x20000000
-#define RK3188_PLL_LOCK_REG 0x200080ac
-
-#define PLL_MODE_MASK 0x3
-#define PLL_MODE_SLOW 0x0
-#define PLL_MODE_NORM 0x1
-#define PLL_MODE_DEEP 0x2
-
-#define PLL_RESET_DELAY(nr) ((nr * 500) / 24 + 1)
-
-#define PLLCON0_OD_MASK 0xf
-#define PLLCON0_OD_SHIFT 0
-#define PLLCON0_NR_MASK 0x3f
-#define PLLCON0_NR_SHIFT 8
-
-#define PLLCON1_NF_MASK 0x1fff
-#define PLLCON1_NF_SHIFT 0
-
-#define PLLCON2_BWADJ_MASK 0xfff
-#define PLLCON2_BWADJ_SHIFT 0
-
-#define PLLCON3_RESET (1 << 1)
-#define PLLCON3_BYPASS (1 << 0)
-
-struct rockchip_pll_data {
- int con_base;
- int mode_offset;
- int mode_shift;
- int lock_shift;
-};
-
-struct rockchip_pll_data rk3188_plls[] = {
- { 0x00, 0x40, 0x00, 0x06 },
- { 0x10, 0x40, 0x04, 0x05 },
- { 0x20, 0x40, 0x08, 0x07 },
- { 0x30, 0x40, 0x0c, 0x08 },
-};
-
-#define HIWORD_UPDATE(val, mask, shift) \
- ((val) << (shift) | (mask) << ((shift) + 16))
-
-int rk3188_pll_set_parameters(int pll, int nr, int nf, int no)
-{
- struct rockchip_pll_data *d = &rk3188_plls[pll];
- int delay = 0;
-
- debug("rk3188 pll %d: set param %d %d %d\n", pll, nr, nf, no);
-
- /* pull pll in slow mode */
- writel(HIWORD_UPDATE(PLL_MODE_SLOW, PLL_MODE_MASK, d->mode_shift),
- RK3188_CLK_BASE + d->mode_offset);
- /* enter reset */
- writel(HIWORD_UPDATE(PLLCON3_RESET, PLLCON3_RESET, 0),
- RK3188_CLK_BASE + d->con_base + 12);
-
- /* update pll values */
- writel(HIWORD_UPDATE(nr - 1, PLLCON0_NR_MASK, PLLCON0_NR_SHIFT) |
- HIWORD_UPDATE(no - 1, PLLCON0_OD_MASK, PLLCON0_OD_SHIFT),
- RK3188_CLK_BASE + d->con_base + 0);
- writel(HIWORD_UPDATE(nf - 1, PLLCON1_NF_MASK, PLLCON1_NF_SHIFT),
- RK3188_CLK_BASE + d->con_base + 4);
- writel(HIWORD_UPDATE(nf >> 1, PLLCON2_BWADJ_MASK, PLLCON2_BWADJ_SHIFT),
- RK3188_CLK_BASE + d->con_base + 8);
-
- /* leave reset and wait the reset_delay */
- writel(HIWORD_UPDATE(0, PLLCON3_RESET, 0),
- RK3188_CLK_BASE + d->con_base + 12);
- udelay(PLL_RESET_DELAY(nr));
-
- /* wait for the pll to lock */
- while (delay++ < 24000000) {
- if (readl(RK3188_PLL_LOCK_REG) & BIT(d->lock_shift))
- break;
- }
-
- /* go back to normal mode */
- writel(HIWORD_UPDATE(PLL_MODE_NORM, PLL_MODE_MASK, d->mode_shift),
- RK3188_CLK_BASE + d->mode_offset);
-
- return 0;
-}
-EXPORT_SYMBOL(rk3188_pll_set_parameters);