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author | John Crispin <john@openwrt.org> | 2012-03-25 08:50:09 +0000 |
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committer | John Crispin <john@openwrt.org> | 2012-03-25 08:50:09 +0000 |
commit | 0f6a9d5c7c938f40657ca30f588479893606781e (patch) | |
tree | cdf2baca2c9b0021baa2c2aa256dee52b627028c /target/linux/lantiq/patches-3.2/0061-MIPS-clean-up-clock-code.patch | |
parent | c49f66675e04441b7089abb2aec1e95bda0dfe78 (diff) | |
download | master-31e0f0ae-0f6a9d5c7c938f40657ca30f588479893606781e.tar.gz master-31e0f0ae-0f6a9d5c7c938f40657ca30f588479893606781e.tar.bz2 master-31e0f0ae-0f6a9d5c7c938f40657ca30f588479893606781e.zip |
bump kernel to 3.2.12
SVN-Revision: 31060
Diffstat (limited to 'target/linux/lantiq/patches-3.2/0061-MIPS-clean-up-clock-code.patch')
-rw-r--r-- | target/linux/lantiq/patches-3.2/0061-MIPS-clean-up-clock-code.patch | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.2/0061-MIPS-clean-up-clock-code.patch b/target/linux/lantiq/patches-3.2/0061-MIPS-clean-up-clock-code.patch new file mode 100644 index 0000000000..9ec89ed8ea --- /dev/null +++ b/target/linux/lantiq/patches-3.2/0061-MIPS-clean-up-clock-code.patch @@ -0,0 +1,319 @@ +From d23a3c21962bcc3dc18e7916c2499cd3b26feaf0 Mon Sep 17 00:00:00 2001 +From: John Crispin <blogic@openwrt.org> +Date: Tue, 20 Mar 2012 08:26:04 +0100 +Subject: [PATCH 61/70] MIPS: clean up clock code + +--- + arch/mips/lantiq/clk.c | 11 +++ + arch/mips/lantiq/clk.h | 3 +- + arch/mips/lantiq/xway/devices.c | 2 +- + arch/mips/lantiq/xway/sysctrl.c | 166 ++++++++++++++++++++++++++++++--------- + 4 files changed, 143 insertions(+), 39 deletions(-) + +diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c +index 84a201e..5494b6e 100644 +--- a/arch/mips/lantiq/clk.c ++++ b/arch/mips/lantiq/clk.c +@@ -44,6 +44,7 @@ struct clk *clk_get_fpi(void) + { + return &cpu_clk_generic[1]; + } ++EXPORT_SYMBOL_GPL(clk_get_fpi); + + struct clk *clk_get_io(void) + { +@@ -70,6 +71,16 @@ unsigned long clk_get_rate(struct clk *clk) + } + EXPORT_SYMBOL(clk_get_rate); + ++int clk_set_rate(struct clk *clk, unsigned long rate) ++{ ++ if (unlikely(!clk_good(clk))) ++ return 0; ++ ++ clk->rate = rate; ++ return 0; ++} ++EXPORT_SYMBOL(clk_set_rate); ++ + int clk_enable(struct clk *clk) + { + if (unlikely(!clk_good(clk))) +diff --git a/arch/mips/lantiq/clk.h b/arch/mips/lantiq/clk.h +index d047768..b34e675 100644 +--- a/arch/mips/lantiq/clk.h ++++ b/arch/mips/lantiq/clk.h +@@ -12,6 +12,7 @@ + #include <linux/clkdev.h> + + /* clock speeds */ ++#define CLOCK_33M 33333333 + #define CLOCK_60M 60000000 + #define CLOCK_62_5M 62500000 + #define CLOCK_83M 83333333 +@@ -38,9 +39,9 @@ + struct clk { + struct clk_lookup cl; + unsigned long rate; +- unsigned long (*get_rate) (void); + unsigned int module; + unsigned int bits; ++ unsigned long (*get_rate) (void); + int (*enable) (struct clk *clk); + void (*disable) (struct clk *clk); + int (*activate) (struct clk *clk); +diff --git a/arch/mips/lantiq/xway/devices.c b/arch/mips/lantiq/xway/devices.c +index e6d45bc..5d4650d 100644 +--- a/arch/mips/lantiq/xway/devices.c ++++ b/arch/mips/lantiq/xway/devices.c +@@ -59,7 +59,7 @@ static struct resource ltq_stp_resource = + + void __init ltq_register_gpio_stp(void) + { +- platform_device_register_simple("ltq_stp", 0, <q_stp_resource, 1); ++ platform_device_register_simple("ltq_stp", -1, <q_stp_resource, 1); + } + + /* asc ports - amazon se has its own serial mapping */ +diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c +index ac7383f..9df048c 100644 +--- a/arch/mips/lantiq/xway/sysctrl.c ++++ b/arch/mips/lantiq/xway/sysctrl.c +@@ -16,40 +16,57 @@ + #include "../devices.h" + + /* clock control register */ +-#define LTQ_CGU_IFCCR 0x0018 ++#define 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 ++#define CGU_SYS 0x0010 ++/* pci control register */ ++#define CGU_PCICR 0x0034 ++/* ephy configuration register */ ++#define CGU_EPHY 0x10 ++/* power control register */ ++#define PMU_PWDCR 0x1C ++/* power status register */ ++#define PMU_PWDSR 0x20 ++/* power control register */ ++#define PMU_PWDCR1 0x24 ++/* power status register */ ++#define PMU_PWDSR1 0x28 ++/* power control register */ ++#define PWDCR(x) ((x) ? (PMU_PWDCR1) : (PMU_PWDCR)) ++/* power status register */ ++#define PWDSR(x) ((x) ? (PMU_PWDSR1) : (PMU_PWDSR)) + + /* 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 PMU_USB0_P BIT(0) ++#define PMU_PCI BIT(4) ++#define PMU_DMA BIT(5) ++#define PMU_USB0 BIT(5) ++#define PMU_SPI BIT(8) ++#define PMU_EPHY BIT(7) ++#define PMU_EBU BIT(10) ++#define PMU_STP BIT(11) ++#define PMU_GPT BIT(12) ++#define PMU_PPE BIT(13) ++#define PMU_AHBS BIT(13) /* vr9 */ ++#define PMU_FPI BIT(14) ++#define PMU_AHBM BIT(15) ++#define PMU_PPE_QSB BIT(18) ++#define PMU_PPE_SLL01 BIT(19) ++#define PMU_PPE_TC BIT(21) ++#define PMU_PPE_EMA BIT(22) ++#define PMU_PPE_DPLUM BIT(23) ++#define PMU_PPE_DPLUS BIT(24) ++#define PMU_USB1_P BIT(26) ++#define PMU_USB1 BIT(27) ++#define PMU_SWITCH BIT(28) ++#define PMU_PPE_TOP BIT(29) ++#define PMU_GPHY BIT(30) ++#define PMU_PCIE_CLK BIT(31) ++ ++#define PMU1_PCIE_PHY BIT(0) ++#define PMU1_PCIE_CTL BIT(1) ++#define PMU1_PCIE_PDI BIT(4) ++#define PMU1_PCIE_MSI BIT(5) + + #define ltq_pmu_w32(x, y) ltq_w32((x), ltq_pmu_membase + (y)) + #define ltq_pmu_r32(x) ltq_r32(ltq_pmu_membase + (x)) +@@ -69,13 +86,13 @@ static void __iomem *ltq_pmu_membase; + + static int ltq_cgu_enable(struct clk *clk) + { +- ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) | clk->bits, LTQ_CGU_IFCCR); ++ ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) | clk->bits, CGU_IFCCR); + return 0; + } + + static void ltq_cgu_disable(struct clk *clk) + { +- ltq_cgu_w32(ltq_cgu_r32(LTQ_CGU_IFCCR) & ~clk->bits, LTQ_CGU_IFCCR); ++ ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) & ~clk->bits, CGU_IFCCR); + } + + static int ltq_pmu_enable(struct clk *clk) +@@ -94,9 +111,49 @@ static int ltq_pmu_enable(struct clk *clk) + + static void ltq_pmu_disable(struct clk *clk) + { +- ltq_pmu_w32(ltq_pmu_r32(LTQ_PMU_PWDCR) | clk->bits, LTQ_PMU_PWDCR); ++ ltq_pmu_w32(ltq_pmu_r32(PWDCR(clk->module)) | clk->bits, ++ PWDCR(clk->module)); ++} ++ ++static int ltq_pci_enable(struct clk *clk) ++{ ++ unsigned int ifccr = ltq_cgu_r32(CGU_IFCCR); ++ /* set clock bus speed */ ++ if (ltq_is_ar9()) { ++ ifccr &= ~0x1f00000; ++ if (clk->rate == CLOCK_33M) ++ ifccr |= 0xe00000; ++ else ++ ifccr |= 0x700000; /* 62.5M */ ++ } else { ++ ifccr &= ~0xf00000; ++ if (clk->rate == CLOCK_33M) ++ ifccr |= 0x800000; ++ else ++ ifccr |= 0x400000; /* 62.5M */ ++ } ++ ltq_cgu_w32(ifccr, CGU_IFCCR); ++ return 0; ++} ++ ++static int ltq_pci_ext_enable(struct clk *clk) ++{ ++ /* enable external pci clock */ ++ ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) & ~(1 << 16), ++ CGU_IFCCR); ++ ltq_cgu_w32((1 << 30), CGU_PCICR); ++ return 0; ++} ++ ++static void ltq_pci_ext_disable(struct clk *clk) ++{ ++ /* enable external pci clock */ ++ ltq_cgu_w32(ltq_cgu_r32(CGU_IFCCR) | (1 << 16), ++ CGU_IFCCR); ++ ltq_cgu_w32((1 << 31) | (1 << 30), CGU_PCICR); + } + ++/* manage the clock gates via PMU */ + static inline void clkdev_add_pmu(const char *dev, const char *con, + unsigned int module, unsigned int bits) + { +@@ -112,6 +169,7 @@ static inline void clkdev_add_pmu(const char *dev, const char *con, + clkdev_add(&clk->cl); + } + ++/* manage the clock generator */ + static inline void clkdev_add_cgu(const char *dev, const char *con, + unsigned int bits) + { +@@ -126,6 +184,33 @@ static inline void clkdev_add_cgu(const char *dev, const char *con, + clkdev_add(&clk->cl); + } + ++/* pci needs its own enable function */ ++static inline void clkdev_add_pci(void) ++{ ++ struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL); ++ struct clk *clk_ext = kzalloc(sizeof(struct clk), GFP_KERNEL); ++ ++ /* main pci clock */ ++ clk->cl.dev_id = "ltq_pci"; ++ clk->cl.con_id = NULL; ++ clk->cl.clk = clk; ++ clk->rate = CLOCK_33M; ++ clk->enable = ltq_pci_enable; ++ clk->disable = ltq_pmu_disable; ++ clk->module = 0; ++ clk->bits = PMU_PCI; ++ clkdev_add(&clk->cl); ++ ++ /* use internal/external bus clock */ ++ clk_ext->cl.dev_id = "ltq_pci"; ++ clk_ext->cl.con_id = "external"; ++ clk_ext->cl.clk = clk_ext; ++ clk_ext->enable = ltq_pci_ext_enable; ++ clk_ext->disable = ltq_pci_ext_disable; ++ clkdev_add(&clk_ext->cl); ++ ++} ++ + void __init ltq_soc_init(void) + { + ltq_pmu_membase = ltq_remap_resource(<q_pmu_resource); +@@ -144,14 +229,16 @@ void __init ltq_soc_init(void) + ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_BUSCON0) & ~EBU_WRDIS, LTQ_EBU_BUSCON0); + + /* add our clocks */ ++ clkdev_add_pmu("ltq_fpi", NULL, 0, PMU_FPI); + 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_gptu", NULL, 0, PMU_GPT); ++ clkdev_add_pmu("ltq_ebu", NULL, 0, PMU_EBU); + if (!ltq_is_vr9()) + clkdev_add_pmu("ltq_etop", NULL, 0, PMU_PPE); + if (ltq_is_ase()) { +- if (ltq_cgu_r32(LTQ_CGU_SYS) & (1 << 5)) ++ if (ltq_cgu_r32(CGU_SYS) & (1 << 5)) + clkdev_add_static(CLOCK_266M, CLOCK_133M, CLOCK_133M); + else + clkdev_add_static(CLOCK_133M, CLOCK_133M, CLOCK_133M); +@@ -166,11 +253,16 @@ void __init ltq_soc_init(void) + clkdev_add_pmu("ltq_pcie", "pdi", 1, PMU1_PCIE_PDI); + clkdev_add_pmu("ltq_pcie", "ctl", 1, PMU1_PCIE_CTL); + clkdev_add_pmu("ltq_pcie", "ahb", 0, PMU_AHBM | PMU_AHBS); +- clkdev_add_pmu("usb0", NULL, 0, (1<<6) | 1); +- clkdev_add_pmu("usb1", NULL, 0, (1<<26) | (1<<27)); ++ clkdev_add_pmu("usb0", NULL, 0, PMU_USB0 | PMU_USB0_P); ++ clkdev_add_pmu("usb1", NULL, 0, PMU_USB1 | PMU_USB1_P); ++ clkdev_add_pmu("ltq_vrx200", NULL, 0, ++ PMU_SWITCH | PMU_PPE_DPLUS | PMU_PPE_DPLUM | ++ PMU_PPE_EMA | PMU_PPE_TC | PMU_PPE_SLL01 | ++ PMU_PPE_QSB); + } else { + clkdev_add_static(ltq_danube_cpu_hz(), ltq_danube_fpi_hz(), + ltq_danube_io_region_clock()); ++ clkdev_add_pci(); + if (ltq_is_ar9()) + clkdev_add_pmu("ltq_etop", "switch", 0, PMU_SWITCH); + } +-- +1.7.7.1 + |