summaryrefslogtreecommitdiff
path: root/target/linux/lantiq/patches-3.2/0025-MIPS-lantiq-convert-xway-to-clkdev-api.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/lantiq/patches-3.2/0025-MIPS-lantiq-convert-xway-to-clkdev-api.patch')
-rw-r--r--target/linux/lantiq/patches-3.2/0025-MIPS-lantiq-convert-xway-to-clkdev-api.patch718
1 files changed, 0 insertions, 718 deletions
diff --git a/target/linux/lantiq/patches-3.2/0025-MIPS-lantiq-convert-xway-to-clkdev-api.patch b/target/linux/lantiq/patches-3.2/0025-MIPS-lantiq-convert-xway-to-clkdev-api.patch
deleted file mode 100644
index 4aedafd72a..0000000000
--- a/target/linux/lantiq/patches-3.2/0025-MIPS-lantiq-convert-xway-to-clkdev-api.patch
+++ /dev/null
@@ -1,718 +0,0 @@
-From b6a73eaeb10726bb30584aa8aa4620061db653ba Mon Sep 17 00:00:00 2001
-From: John Crispin <blogic@openwrt.org>
-Date: Thu, 8 Mar 2012 11:18:22 +0100
-Subject: [PATCH 25/73] MIPS: lantiq: convert xway to clkdev api
-
-Unify xway/ase clock code and add clkdev hooks to sysctrl.c
-
-Signed-off-by: John Crispin <blogic@openwrt.org>
----
- .../mips/include/asm/mach-lantiq/xway/lantiq_soc.h | 13 --
- arch/mips/lantiq/xway/Makefile | 6 +-
- arch/mips/lantiq/xway/clk-ase.c | 48 ----
- arch/mips/lantiq/xway/clk-xway.c | 223 -------------------
- arch/mips/lantiq/xway/clk.c | 227 ++++++++++++++++++++
- arch/mips/lantiq/xway/sysctrl.c | 104 ++++++++-
- 6 files changed, 325 insertions(+), 296 deletions(-)
- delete mode 100644 arch/mips/lantiq/xway/clk-ase.c
- delete mode 100644 arch/mips/lantiq/xway/clk-xway.c
- create mode 100644 arch/mips/lantiq/xway/clk.c
-
---- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
-+++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
-@@ -81,15 +81,6 @@
- #define LTQ_PMU_BASE_ADDR 0x1F102000
- #define LTQ_PMU_SIZE 0x1000
-
--#define PMU_DMA 0x0020
--#define PMU_EPHY 0x0080
--#define PMU_USB 0x8041
--#define PMU_LED 0x0800
--#define PMU_GPT 0x1000
--#define PMU_PPE 0x2000
--#define PMU_FPI 0x4000
--#define PMU_SWITCH 0x10000000
--
- /* ETOP - ethernet */
- #define LTQ_ETOP_BASE_ADDR 0x1E180000
- #define LTQ_ETOP_SIZE 0x40000
-@@ -145,10 +136,6 @@
- extern __iomem void *ltq_ebu_membase;
- extern __iomem void *ltq_cgu_membase;
-
--extern void ltq_pmu_enable(unsigned int module);
--extern void ltq_pmu_disable(unsigned int module);
--extern void ltq_cgu_enable(unsigned int clk);
--
- static inline int ltq_is_ase(void)
- {
- return (ltq_get_soc_type() == SOC_TYPE_AMAZON_SE);
---- a/arch/mips/lantiq/xway/Makefile
-+++ b/arch/mips/lantiq/xway/Makefile
-@@ -1,7 +1,7 @@
--obj-y := sysctrl.o reset.o gpio.o gpio_stp.o gpio_ebu.o devices.o dma.o
-+obj-y := sysctrl.o reset.o gpio.o gpio_stp.o gpio_ebu.o devices.o dma.o clk.o
-
--obj-$(CONFIG_SOC_XWAY) += clk-xway.o prom-xway.o
--obj-$(CONFIG_SOC_AMAZON_SE) += clk-ase.o prom-ase.o
-+obj-$(CONFIG_SOC_XWAY) += prom-xway.o
-+obj-$(CONFIG_SOC_AMAZON_SE) += prom-ase.o
-
- obj-$(CONFIG_LANTIQ_MACH_EASY50712) += mach-easy50712.o
- obj-$(CONFIG_LANTIQ_MACH_EASY50601) += mach-easy50601.o
---- a/arch/mips/lantiq/xway/clk-ase.c
-+++ /dev/null
-@@ -1,48 +0,0 @@
--/*
-- * 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.
-- *
-- * Copyright (C) 2011 John Crispin <blogic@openwrt.org>
-- */
--
--#include <linux/io.h>
--#include <linux/export.h>
--#include <linux/init.h>
--#include <linux/clk.h>
--
--#include <asm/time.h>
--#include <asm/irq.h>
--#include <asm/div64.h>
--
--#include <lantiq_soc.h>
--
--/* cgu registers */
--#define LTQ_CGU_SYS 0x0010
--
--unsigned int ltq_get_io_region_clock(void)
--{
-- return CLOCK_133M;
--}
--EXPORT_SYMBOL(ltq_get_io_region_clock);
--
--unsigned int ltq_get_fpi_bus_clock(int fpi)
--{
-- return CLOCK_133M;
--}
--EXPORT_SYMBOL(ltq_get_fpi_bus_clock);
--
--unsigned int ltq_get_cpu_hz(void)
--{
-- if (ltq_cgu_r32(LTQ_CGU_SYS) & (1 << 5))
-- return CLOCK_266M;
-- else
-- return CLOCK_133M;
--}
--EXPORT_SYMBOL(ltq_get_cpu_hz);
--
--unsigned int ltq_get_fpi_hz(void)
--{
-- return CLOCK_133M;
--}
--EXPORT_SYMBOL(ltq_get_fpi_hz);
---- a/arch/mips/lantiq/xway/clk-xway.c
-+++ /dev/null
-@@ -1,223 +0,0 @@
--/*
-- * 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.
-- *
-- * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
-- */
--
--#include <linux/io.h>
--#include <linux/export.h>
--#include <linux/init.h>
--#include <linux/clk.h>
--
--#include <asm/time.h>
--#include <asm/irq.h>
--#include <asm/div64.h>
--
--#include <lantiq_soc.h>
--
--static unsigned int ltq_ram_clocks[] = {
-- CLOCK_167M, CLOCK_133M, CLOCK_111M, CLOCK_83M };
--#define DDR_HZ ltq_ram_clocks[ltq_cgu_r32(LTQ_CGU_SYS) & 0x3]
--
--#define BASIC_FREQUENCY_1 35328000
--#define BASIC_FREQUENCY_2 36000000
--#define BASIS_REQUENCY_USB 12000000
--
--#define GET_BITS(x, msb, lsb) \
-- (((x) & ((1 << ((msb) + 1)) - 1)) >> (lsb))
--
--#define LTQ_CGU_PLL0_CFG 0x0004
--#define LTQ_CGU_PLL1_CFG 0x0008
--#define LTQ_CGU_PLL2_CFG 0x000C
--#define LTQ_CGU_SYS 0x0010
--#define LTQ_CGU_UPDATE 0x0014
--#define LTQ_CGU_IF_CLK 0x0018
--#define LTQ_CGU_OSC_CON 0x001C
--#define LTQ_CGU_SMD 0x0020
--#define LTQ_CGU_CT1SR 0x0028
--#define LTQ_CGU_CT2SR 0x002C
--#define LTQ_CGU_PCMCR 0x0030
--#define LTQ_CGU_PCI_CR 0x0034
--#define LTQ_CGU_PD_PC 0x0038
--#define LTQ_CGU_FMR 0x003C
--
--#define CGU_PLL0_PHASE_DIVIDER_ENABLE \
-- (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 31))
--#define CGU_PLL0_BYPASS \
-- (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 30))
--#define CGU_PLL0_CFG_DSMSEL \
-- (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 28))
--#define CGU_PLL0_CFG_FRAC_EN \
-- (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 27))
--#define CGU_PLL1_SRC \
-- (ltq_cgu_r32(LTQ_CGU_PLL1_CFG) & (1 << 31))
--#define CGU_PLL2_PHASE_DIVIDER_ENABLE \
-- (ltq_cgu_r32(LTQ_CGU_PLL2_CFG) & (1 << 20))
--#define CGU_SYS_FPI_SEL (1 << 6)
--#define CGU_SYS_DDR_SEL 0x3
--#define CGU_PLL0_SRC (1 << 29)
--
--#define CGU_PLL0_CFG_PLLK GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL0_CFG), 26, 17)
--#define CGU_PLL0_CFG_PLLN GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL0_CFG), 12, 6)
--#define CGU_PLL0_CFG_PLLM GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL0_CFG), 5, 2)
--#define CGU_PLL2_SRC GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL2_CFG), 18, 17)
--#define CGU_PLL2_CFG_INPUT_DIV GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL2_CFG), 16, 13)
--
--static unsigned int ltq_get_pll0_fdiv(void);
--
--static inline unsigned int get_input_clock(int pll)
--{
-- switch (pll) {
-- case 0:
-- if (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & CGU_PLL0_SRC)
-- return BASIS_REQUENCY_USB;
-- else if (CGU_PLL0_PHASE_DIVIDER_ENABLE)
-- return BASIC_FREQUENCY_1;
-- else
-- return BASIC_FREQUENCY_2;
-- case 1:
-- if (CGU_PLL1_SRC)
-- return BASIS_REQUENCY_USB;
-- else if (CGU_PLL0_PHASE_DIVIDER_ENABLE)
-- return BASIC_FREQUENCY_1;
-- else
-- return BASIC_FREQUENCY_2;
-- case 2:
-- switch (CGU_PLL2_SRC) {
-- case 0:
-- return ltq_get_pll0_fdiv();
-- case 1:
-- return CGU_PLL2_PHASE_DIVIDER_ENABLE ?
-- BASIC_FREQUENCY_1 :
-- BASIC_FREQUENCY_2;
-- case 2:
-- return BASIS_REQUENCY_USB;
-- }
-- default:
-- return 0;
-- }
--}
--
--static inline unsigned int cal_dsm(int pll, unsigned int num, unsigned int den)
--{
-- u64 res, clock = get_input_clock(pll);
--
-- res = num * clock;
-- do_div(res, den);
-- return res;
--}
--
--static inline unsigned int mash_dsm(int pll, unsigned int M, unsigned int N,
-- unsigned int K)
--{
-- unsigned int num = ((N + 1) << 10) + K;
-- unsigned int den = (M + 1) << 10;
--
-- return cal_dsm(pll, num, den);
--}
--
--static inline unsigned int ssff_dsm_1(int pll, unsigned int M, unsigned int N,
-- unsigned int K)
--{
-- unsigned int num = ((N + 1) << 11) + K + 512;
-- unsigned int den = (M + 1) << 11;
--
-- return cal_dsm(pll, num, den);
--}
--
--static inline unsigned int ssff_dsm_2(int pll, unsigned int M, unsigned int N,
-- unsigned int K)
--{
-- unsigned int num = K >= 512 ?
-- ((N + 1) << 12) + K - 512 : ((N + 1) << 12) + K + 3584;
-- unsigned int den = (M + 1) << 12;
--
-- return cal_dsm(pll, num, den);
--}
--
--static inline unsigned int dsm(int pll, unsigned int M, unsigned int N,
-- unsigned int K, unsigned int dsmsel, unsigned int phase_div_en)
--{
-- if (!dsmsel)
-- return mash_dsm(pll, M, N, K);
-- else if (!phase_div_en)
-- return mash_dsm(pll, M, N, K);
-- else
-- return ssff_dsm_2(pll, M, N, K);
--}
--
--static inline unsigned int ltq_get_pll0_fosc(void)
--{
-- if (CGU_PLL0_BYPASS)
-- return get_input_clock(0);
-- else
-- return !CGU_PLL0_CFG_FRAC_EN
-- ? dsm(0, CGU_PLL0_CFG_PLLM, CGU_PLL0_CFG_PLLN, 0,
-- CGU_PLL0_CFG_DSMSEL,
-- CGU_PLL0_PHASE_DIVIDER_ENABLE)
-- : dsm(0, CGU_PLL0_CFG_PLLM, CGU_PLL0_CFG_PLLN,
-- CGU_PLL0_CFG_PLLK, CGU_PLL0_CFG_DSMSEL,
-- CGU_PLL0_PHASE_DIVIDER_ENABLE);
--}
--
--static unsigned int ltq_get_pll0_fdiv(void)
--{
-- unsigned int div = CGU_PLL2_CFG_INPUT_DIV + 1;
--
-- return (ltq_get_pll0_fosc() + (div >> 1)) / div;
--}
--
--unsigned int ltq_get_io_region_clock(void)
--{
-- unsigned int ret = ltq_get_pll0_fosc();
--
-- switch (ltq_cgu_r32(LTQ_CGU_PLL2_CFG) & CGU_SYS_DDR_SEL) {
-- default:
-- case 0:
-- return (ret + 1) / 2;
-- case 1:
-- return (ret * 2 + 2) / 5;
-- case 2:
-- return (ret + 1) / 3;
-- case 3:
-- return (ret + 2) / 4;
-- }
--}
--EXPORT_SYMBOL(ltq_get_io_region_clock);
--
--unsigned int ltq_get_fpi_bus_clock(int fpi)
--{
-- unsigned int ret = ltq_get_io_region_clock();
--
-- if ((fpi == 2) && (ltq_cgu_r32(LTQ_CGU_SYS) & CGU_SYS_FPI_SEL))
-- ret >>= 1;
-- return ret;
--}
--EXPORT_SYMBOL(ltq_get_fpi_bus_clock);
--
--unsigned int ltq_get_cpu_hz(void)
--{
-- switch (ltq_cgu_r32(LTQ_CGU_SYS) & 0xc) {
-- case 0:
-- return CLOCK_333M;
-- case 4:
-- return DDR_HZ;
-- case 8:
-- return DDR_HZ << 1;
-- default:
-- return DDR_HZ >> 1;
-- }
--}
--EXPORT_SYMBOL(ltq_get_cpu_hz);
--
--unsigned int ltq_get_fpi_hz(void)
--{
-- unsigned int ddr_clock = DDR_HZ;
--
-- if (ltq_cgu_r32(LTQ_CGU_SYS) & 0x40)
-- return ddr_clock >> 1;
-- return ddr_clock;
--}
--EXPORT_SYMBOL(ltq_get_fpi_hz);
---- /dev/null
-+++ b/arch/mips/lantiq/xway/clk.c
-@@ -0,0 +1,227 @@
-+/*
-+ * 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.
-+ *
-+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
-+ */
-+
-+#include <linux/io.h>
-+#include <linux/export.h>
-+#include <linux/init.h>
-+#include <linux/clk.h>
-+
-+#include <asm/time.h>
-+#include <asm/irq.h>
-+#include <asm/div64.h>
-+
-+#include <lantiq_soc.h>
-+
-+#include "../clk.h"
-+
-+static unsigned int ltq_ram_clocks[] = {
-+ CLOCK_167M, CLOCK_133M, CLOCK_111M, CLOCK_83M };
-+#define DDR_HZ ltq_ram_clocks[ltq_cgu_r32(LTQ_CGU_SYS) & 0x3]
-+
-+#define BASIC_FREQUENCY_1 35328000
-+#define BASIC_FREQUENCY_2 36000000
-+#define BASIS_REQUENCY_USB 12000000
-+
-+#define GET_BITS(x, msb, lsb) \
-+ (((x) & ((1 << ((msb) + 1)) - 1)) >> (lsb))
-+
-+/* legacy xway clock */
-+#define LTQ_CGU_PLL0_CFG 0x0004
-+#define LTQ_CGU_PLL1_CFG 0x0008
-+#define LTQ_CGU_PLL2_CFG 0x000C
-+#define LTQ_CGU_SYS 0x0010
-+#define LTQ_CGU_UPDATE 0x0014
-+#define LTQ_CGU_IF_CLK 0x0018
-+#define LTQ_CGU_OSC_CON 0x001C
-+#define LTQ_CGU_SMD 0x0020
-+#define LTQ_CGU_CT1SR 0x0028
-+#define LTQ_CGU_CT2SR 0x002C
-+#define LTQ_CGU_PCMCR 0x0030
-+#define LTQ_CGU_PCI_CR 0x0034
-+#define LTQ_CGU_PD_PC 0x0038
-+#define LTQ_CGU_FMR 0x003C
-+
-+#define CGU_PLL0_PHASE_DIVIDER_ENABLE \
-+ (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 31))
-+#define CGU_PLL0_BYPASS \
-+ (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 30))
-+#define CGU_PLL0_CFG_DSMSEL \
-+ (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 28))
-+#define CGU_PLL0_CFG_FRAC_EN \
-+ (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & (1 << 27))
-+#define CGU_PLL1_SRC \
-+ (ltq_cgu_r32(LTQ_CGU_PLL1_CFG) & (1 << 31))
-+#define CGU_PLL2_PHASE_DIVIDER_ENABLE \
-+ (ltq_cgu_r32(LTQ_CGU_PLL2_CFG) & (1 << 20))
-+#define CGU_SYS_FPI_SEL (1 << 6)
-+#define CGU_SYS_DDR_SEL 0x3
-+#define CGU_PLL0_SRC (1 << 29)
-+
-+#define CGU_PLL0_CFG_PLLK GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL0_CFG), 26, 17)
-+#define CGU_PLL0_CFG_PLLN GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL0_CFG), 12, 6)
-+#define CGU_PLL0_CFG_PLLM GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL0_CFG), 5, 2)
-+#define CGU_PLL2_SRC GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL2_CFG), 18, 17)
-+#define CGU_PLL2_CFG_INPUT_DIV GET_BITS(ltq_cgu_r32(LTQ_CGU_PLL2_CFG), 16, 13)
-+
-+/* vr9 clock */
-+#define LTQ_CGU_SYS_VR9 0x0c
-+#define LTQ_CGU_IF_CLK_VR9 0x24
-+
-+
-+static unsigned int ltq_get_pll0_fdiv(void);
-+
-+static inline unsigned int get_input_clock(int pll)
-+{
-+ switch (pll) {
-+ case 0:
-+ if (ltq_cgu_r32(LTQ_CGU_PLL0_CFG) & CGU_PLL0_SRC)
-+ return BASIS_REQUENCY_USB;
-+ else if (CGU_PLL0_PHASE_DIVIDER_ENABLE)
-+ return BASIC_FREQUENCY_1;
-+ else
-+ return BASIC_FREQUENCY_2;
-+ case 1:
-+ if (CGU_PLL1_SRC)
-+ return BASIS_REQUENCY_USB;
-+ else if (CGU_PLL0_PHASE_DIVIDER_ENABLE)
-+ return BASIC_FREQUENCY_1;
-+ else
-+ return BASIC_FREQUENCY_2;
-+ case 2:
-+ switch (CGU_PLL2_SRC) {
-+ case 0:
-+ return ltq_get_pll0_fdiv();
-+ case 1:
-+ return CGU_PLL2_PHASE_DIVIDER_ENABLE ?
-+ BASIC_FREQUENCY_1 :
-+ BASIC_FREQUENCY_2;
-+ case 2:
-+ return BASIS_REQUENCY_USB;
-+ }
-+ default:
-+ return 0;
-+ }
-+}
-+
-+static inline unsigned int cal_dsm(int pll, unsigned int num, unsigned int den)
-+{
-+ u64 res, clock = get_input_clock(pll);
-+
-+ res = num * clock;
-+ do_div(res, den);
-+ return res;
-+}
-+
-+static inline unsigned int mash_dsm(int pll, unsigned int M, unsigned int N,
-+ unsigned int K)
-+{
-+ unsigned int num = ((N + 1) << 10) + K;
-+ unsigned int den = (M + 1) << 10;
-+
-+ return cal_dsm(pll, num, den);
-+}
-+
-+static inline unsigned int ssff_dsm_1(int pll, unsigned int M, unsigned int N,
-+ unsigned int K)
-+{
-+ unsigned int num = ((N + 1) << 11) + K + 512;
-+ unsigned int den = (M + 1) << 11;
-+
-+ return cal_dsm(pll, num, den);
-+}
-+
-+static inline unsigned int ssff_dsm_2(int pll, unsigned int M, unsigned int N,
-+ unsigned int K)
-+{
-+ unsigned int num = K >= 512 ?
-+ ((N + 1) << 12) + K - 512 : ((N + 1) << 12) + K + 3584;
-+ unsigned int den = (M + 1) << 12;
-+
-+ return cal_dsm(pll, num, den);
-+}
-+
-+static inline unsigned int dsm(int pll, unsigned int M, unsigned int N,
-+ unsigned int K, unsigned int dsmsel, unsigned int phase_div_en)
-+{
-+ if (!dsmsel)
-+ return mash_dsm(pll, M, N, K);
-+ else if (!phase_div_en)
-+ return mash_dsm(pll, M, N, K);
-+ else
-+ return ssff_dsm_2(pll, M, N, K);
-+}
-+
-+static inline unsigned int ltq_get_pll0_fosc(void)
-+{
-+ if (CGU_PLL0_BYPASS)
-+ return get_input_clock(0);
-+ else
-+ return !CGU_PLL0_CFG_FRAC_EN
-+ ? dsm(0, CGU_PLL0_CFG_PLLM, CGU_PLL0_CFG_PLLN, 0,
-+ CGU_PLL0_CFG_DSMSEL,
-+ CGU_PLL0_PHASE_DIVIDER_ENABLE)
-+ : dsm(0, CGU_PLL0_CFG_PLLM, CGU_PLL0_CFG_PLLN,
-+ CGU_PLL0_CFG_PLLK, CGU_PLL0_CFG_DSMSEL,
-+ CGU_PLL0_PHASE_DIVIDER_ENABLE);
-+}
-+
-+static unsigned int ltq_get_pll0_fdiv(void)
-+{
-+ unsigned int div = CGU_PLL2_CFG_INPUT_DIV + 1;
-+
-+ return (ltq_get_pll0_fosc() + (div >> 1)) / div;
-+}
-+
-+unsigned long ltq_danube_io_region_clock(void)
-+{
-+ unsigned int ret = ltq_get_pll0_fosc();
-+
-+ switch (ltq_cgu_r32(LTQ_CGU_PLL2_CFG) & CGU_SYS_DDR_SEL) {
-+ default:
-+ case 0:
-+ return (ret + 1) / 2;
-+ case 1:
-+ return (ret * 2 + 2) / 5;
-+ case 2:
-+ return (ret + 1) / 3;
-+ case 3:
-+ return (ret + 2) / 4;
-+ }
-+}
-+
-+unsigned long ltq_danube_fpi_bus_clock(int fpi)
-+{
-+ unsigned long ret = ltq_danube_io_region_clock();
-+
-+ if ((fpi == 2) && (ltq_cgu_r32(LTQ_CGU_SYS) & CGU_SYS_FPI_SEL))
-+ ret >>= 1;
-+ return ret;
-+}
-+
-+unsigned long ltq_danube_cpu_hz(void)
-+{
-+ switch (ltq_cgu_r32(LTQ_CGU_SYS) & 0xc) {
-+ case 0:
-+ return CLOCK_333M;
-+ case 4:
-+ return DDR_HZ;
-+ case 8:
-+ return DDR_HZ << 1;
-+ default:
-+ return DDR_HZ >> 1;
-+ }
-+}
-+
-+unsigned long ltq_danube_fpi_hz(void)
-+{
-+ unsigned long ddr_clock = DDR_HZ;
-+
-+ if (ltq_cgu_r32(LTQ_CGU_SYS) & 0x40)
-+ return ddr_clock >> 1;
-+ return ddr_clock;
-+}
---- a/arch/mips/lantiq/xway/sysctrl.c
-+++ b/arch/mips/lantiq/xway/sysctrl.c
-@@ -8,17 +8,48 @@
-
- #include <linux/ioport.h>
- #include <linux/export.h>
-+#include <linux/clkdev.h>
-
- #include <lantiq_soc.h>
-
-+#include "../clk.h"
- #include "../devices.h"
-
- /* clock control register */
- #define LTQ_CGU_IFCCR 0x0018
-+/* system clock register */
-+#define LTQ_CGU_SYS 0x0010
-
- /* the enable / disable registers */
- #define LTQ_PMU_PWDCR 0x1C
- #define LTQ_PMU_PWDSR 0x20
-+#define LTQ_PMU_PWDCR1 0x24
-+#define LTQ_PMU_PWDSR1 0x28
-+
-+#define PWDCR(x) ((x) ? (LTQ_PMU_PWDCR1) : (LTQ_PMU_PWDCR))
-+#define PWDSR(x) ((x) ? (LTQ_PMU_PWDSR1) : (LTQ_PMU_PWDSR))
-+
-+/* CGU - clock generation unit */
-+#define CGU_EPHY 0x10
-+
-+/* PMU - power management unit */
-+#define PMU_DMA 0x0020
-+#define PMU_SPI 0x0100
-+#define PMU_EPHY 0x0080
-+#define PMU_USB 0x8041
-+#define PMU_STP 0x0800
-+#define PMU_GPT 0x1000
-+#define PMU_PPE 0x2000
-+#define PMU_FPI 0x4000
-+#define PMU_SWITCH 0x10000000
-+#define PMU_AHBS 0x2000
-+#define PMU_AHBM 0x8000
-+#define PMU_PCIE_CLK 0x80000000
-+
-+#define PMU1_PCIE_PHY 0x0001
-+#define PMU1_PCIE_CTL 0x0002
-+#define PMU1_PCIE_MSI 0x0020
-+#define PMU1_PCIE_PDI 0x0010
-
- #define ltq_pmu_w32(x, y) ltq_w32((x), ltq_pmu_membase + (y))
- #define ltq_pmu_r32(x) ltq_r32(ltq_pmu_membase + (x))
-@@ -36,28 +67,64 @@ void __iomem *ltq_cgu_membase;
- void __iomem *ltq_ebu_membase;
- static void __iomem *ltq_pmu_membase;
-
--void ltq_cgu_enable(unsigned int clk)
-+static int ltq_cgu_enable(struct clk *clk)
-+{
-+ ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) | clk->bits, LTQ_CGU_IFCCR);
-+ return 0;
-+}
-+
-+static void ltq_cgu_disable(struct clk *clk)
- {
-- ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) | clk, LTQ_CGU_IFCCR);
-+ ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) & ~clk->bits, LTQ_CGU_IFCCR);
- }
-
--void ltq_pmu_enable(unsigned int module)
-+static int ltq_pmu_enable(struct clk *clk)
- {
- int err = 1000000;
-
-- ltq_pmu_w32(ltq_pmu_r32(LTQ_PMU_PWDCR) & ~module, LTQ_PMU_PWDCR);
-- do {} while (--err && (ltq_pmu_r32(LTQ_PMU_PWDSR) & module));
-+ ltq_pmu_w32(ltq_pmu_r32(PWDCR(clk->module)) & ~clk->bits,
-+ PWDCR(clk->module));
-+ do {} while (--err && (ltq_pmu_r32(PWDSR(clk->module)) & clk->bits));
-
- if (!err)
- panic("activating PMU module failed!\n");
-+
-+ return 0;
-+}
-+
-+static void ltq_pmu_disable(struct clk *clk)
-+{
-+ ltq_pmu_w32(ltq_pmu_r32(LTQ_PMU_PWDCR) | clk->bits, LTQ_PMU_PWDCR);
-+}
-+
-+static inline void clkdev_add_pmu(const char *dev, const char *con,
-+ unsigned int module, unsigned int bits)
-+{
-+ struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
-+
-+ clk->cl.dev_id = dev;
-+ clk->cl.con_id = con;
-+ clk->cl.clk = clk;
-+ clk->enable = ltq_pmu_enable;
-+ clk->disable = ltq_pmu_disable;
-+ clk->module = module;
-+ clk->bits = bits;
-+ clkdev_add(&clk->cl);
- }
--EXPORT_SYMBOL(ltq_pmu_enable);
-
--void ltq_pmu_disable(unsigned int module)
-+static inline void clkdev_add_cgu(const char *dev, const char *con,
-+ unsigned int bits)
- {
-- ltq_pmu_w32(ltq_pmu_r32(LTQ_PMU_PWDCR) | module, LTQ_PMU_PWDCR);
-+ struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
-+
-+ clk->cl.dev_id = dev;
-+ clk->cl.con_id = con;
-+ clk->cl.clk = clk;
-+ clk->enable = ltq_cgu_enable;
-+ clk->disable = ltq_cgu_disable;
-+ clk->bits = bits;
-+ clkdev_add(&clk->cl);
- }
--EXPORT_SYMBOL(ltq_pmu_disable);
-
- void __init ltq_soc_init(void)
- {
-@@ -75,4 +142,23 @@ void __init ltq_soc_init(void)
-
- /* make sure to unprotect the memory region where flash is located */
- ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_BUSCON0) & ~EBU_WRDIS, LTQ_EBU_BUSCON0);
-+
-+ /* add our clocks */
-+ clkdev_add_pmu("ltq_dma", NULL, 0, PMU_DMA);
-+ clkdev_add_pmu("ltq_stp", NULL, 0, PMU_STP);
-+ clkdev_add_pmu("ltq_spi", NULL, 0, PMU_SPI);
-+ clkdev_add_pmu("ltq_etop", NULL, 0, PMU_PPE);
-+ if (ltq_is_ase()) {
-+ if (ltq_cgu_r32(LTQ_CGU_SYS) & (1 << 5))
-+ clkdev_add_static(CLOCK_266M, CLOCK_133M, CLOCK_133M);
-+ else
-+ clkdev_add_static(CLOCK_133M, CLOCK_133M, CLOCK_133M);
-+ clkdev_add_cgu("ltq_etop", "ephycgu", CGU_EPHY),
-+ clkdev_add_pmu("ltq_etop", "ephy", 0, PMU_EPHY);
-+ } else {
-+ clkdev_add_static(ltq_danube_cpu_hz(), ltq_danube_fpi_hz(),
-+ ltq_danube_io_region_clock());
-+ if (ltq_is_ar9())
-+ clkdev_add_pmu("ltq_etop", "switch", 0, PMU_SWITCH);
-+ }
- }
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 15:25:40 +0000