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-rw-r--r--arch/arm/mach-kirkwood/common.c131
1 files changed, 84 insertions, 47 deletions
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index f261cd24264..bac21a554c9 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -17,23 +17,24 @@
#include <linux/dma-mapping.h>
#include <linux/clk-provider.h>
#include <linux/spinlock.h>
+#include <linux/mv643xx_i2c.h>
+#include <linux/timex.h>
+#include <linux/kexec.h>
#include <net/dsa.h>
#include <asm/page.h>
-#include <asm/timex.h>
-#include <asm/kexec.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <mach/kirkwood.h>
#include <mach/bridge-regs.h>
-#include <plat/audio.h>
+#include <linux/platform_data/asoc-kirkwood.h>
#include <plat/cache-feroceon-l2.h>
-#include <plat/mvsdio.h>
-#include <plat/orion_nand.h>
-#include <plat/ehci-orion.h>
+#include <linux/platform_data/mmc-mvsdio.h>
+#include <linux/platform_data/mtd-orion_nand.h>
+#include <linux/platform_data/usb-ehci-orion.h>
#include <plat/common.h>
#include <plat/time.h>
#include <plat/addr-map.h>
-#include <plat/mv_xor.h>
+#include <linux/platform_data/dma-mv_xor.h>
#include "common.h"
/*****************************************************************************
@@ -41,17 +42,7 @@
****************************************************************************/
static struct map_desc kirkwood_io_desc[] __initdata = {
{
- .virtual = KIRKWOOD_PCIE_IO_VIRT_BASE,
- .pfn = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE),
- .length = KIRKWOOD_PCIE_IO_SIZE,
- .type = MT_DEVICE,
- }, {
- .virtual = KIRKWOOD_PCIE1_IO_VIRT_BASE,
- .pfn = __phys_to_pfn(KIRKWOOD_PCIE1_IO_PHYS_BASE),
- .length = KIRKWOOD_PCIE1_IO_SIZE,
- .type = MT_DEVICE,
- }, {
- .virtual = KIRKWOOD_REGS_VIRT_BASE,
+ .virtual = (unsigned long) KIRKWOOD_REGS_VIRT_BASE,
.pfn = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
.length = KIRKWOOD_REGS_SIZE,
.type = MT_DEVICE,
@@ -67,6 +58,14 @@ void __init kirkwood_map_io(void)
* CLK tree
****************************************************************************/
+static void enable_sata0(void)
+{
+ /* Enable PLL and IVREF */
+ writel(readl(SATA0_PHY_MODE_2) | 0xf, SATA0_PHY_MODE_2);
+ /* Enable PHY */
+ writel(readl(SATA0_IF_CTRL) & ~0x200, SATA0_IF_CTRL);
+}
+
static void disable_sata0(void)
{
/* Disable PLL and IVREF */
@@ -75,6 +74,14 @@ static void disable_sata0(void)
writel(readl(SATA0_IF_CTRL) | 0x200, SATA0_IF_CTRL);
}
+static void enable_sata1(void)
+{
+ /* Enable PLL and IVREF */
+ writel(readl(SATA1_PHY_MODE_2) | 0xf, SATA1_PHY_MODE_2);
+ /* Enable PHY */
+ writel(readl(SATA1_IF_CTRL) & ~0x200, SATA1_IF_CTRL);
+}
+
static void disable_sata1(void)
{
/* Disable PLL and IVREF */
@@ -107,23 +114,38 @@ static void disable_pcie1(void)
}
}
-/* An extended version of the gated clk. This calls fn() before
- * disabling the clock. We use this to turn off PHYs etc. */
+/* An extended version of the gated clk. This calls fn_en()/fn_dis
+ * before enabling/disabling the clock. We use this to turn on/off
+ * PHYs etc. */
struct clk_gate_fn {
struct clk_gate gate;
- void (*fn)(void);
+ void (*fn_en)(void);
+ void (*fn_dis)(void);
};
#define to_clk_gate_fn(_gate) container_of(_gate, struct clk_gate_fn, gate)
#define to_clk_gate(_hw) container_of(_hw, struct clk_gate, hw)
+static int clk_gate_fn_enable(struct clk_hw *hw)
+{
+ struct clk_gate *gate = to_clk_gate(hw);
+ struct clk_gate_fn *gate_fn = to_clk_gate_fn(gate);
+ int ret;
+
+ ret = clk_gate_ops.enable(hw);
+ if (!ret && gate_fn->fn_en)
+ gate_fn->fn_en();
+
+ return ret;
+}
+
static void clk_gate_fn_disable(struct clk_hw *hw)
{
struct clk_gate *gate = to_clk_gate(hw);
struct clk_gate_fn *gate_fn = to_clk_gate_fn(gate);
- if (gate_fn->fn)
- gate_fn->fn();
+ if (gate_fn->fn_dis)
+ gate_fn->fn_dis();
clk_gate_ops.disable(hw);
}
@@ -135,7 +157,7 @@ static struct clk __init *clk_register_gate_fn(struct device *dev,
const char *parent_name, unsigned long flags,
void __iomem *reg, u8 bit_idx,
u8 clk_gate_flags, spinlock_t *lock,
- void (*fn)(void))
+ void (*fn_en)(void), void (*fn_dis)(void))
{
struct clk_gate_fn *gate_fn;
struct clk *clk;
@@ -159,11 +181,14 @@ static struct clk __init *clk_register_gate_fn(struct device *dev,
gate_fn->gate.flags = clk_gate_flags;
gate_fn->gate.lock = lock;
gate_fn->gate.hw.init = &init;
- gate_fn->fn = fn;
+ gate_fn->fn_en = fn_en;
+ gate_fn->fn_dis = fn_dis;
- /* ops is the gate ops, but with our disable function */
- if (clk_gate_fn_ops.disable != clk_gate_fn_disable) {
+ /* ops is the gate ops, but with our enable/disable functions */
+ if (clk_gate_fn_ops.enable != clk_gate_fn_enable ||
+ clk_gate_fn_ops.disable != clk_gate_fn_disable) {
clk_gate_fn_ops = clk_gate_ops;
+ clk_gate_fn_ops.enable = clk_gate_fn_enable;
clk_gate_fn_ops.disable = clk_gate_fn_disable;
}
@@ -180,18 +205,17 @@ static struct clk *tclk;
static struct clk __init *kirkwood_register_gate(const char *name, u8 bit_idx)
{
- return clk_register_gate(NULL, name, "tclk", 0,
- (void __iomem *)CLOCK_GATING_CTRL,
+ return clk_register_gate(NULL, name, "tclk", 0, CLOCK_GATING_CTRL,
bit_idx, 0, &gating_lock);
}
static struct clk __init *kirkwood_register_gate_fn(const char *name,
u8 bit_idx,
- void (*fn)(void))
+ void (*fn_en)(void),
+ void (*fn_dis)(void))
{
- return clk_register_gate_fn(NULL, name, "tclk", 0,
- (void __iomem *)CLOCK_GATING_CTRL,
- bit_idx, 0, &gating_lock, fn);
+ return clk_register_gate_fn(NULL, name, "tclk", 0, CLOCK_GATING_CTRL,
+ bit_idx, 0, &gating_lock, fn_en, fn_dis);
}
static struct clk *ge0, *ge1;
@@ -208,18 +232,18 @@ void __init kirkwood_clk_init(void)
ge0 = kirkwood_register_gate("ge0", CGC_BIT_GE0);
ge1 = kirkwood_register_gate("ge1", CGC_BIT_GE1);
sata0 = kirkwood_register_gate_fn("sata0", CGC_BIT_SATA0,
- disable_sata0);
+ enable_sata0, disable_sata0);
sata1 = kirkwood_register_gate_fn("sata1", CGC_BIT_SATA1,
- disable_sata1);
+ enable_sata1, disable_sata1);
usb0 = kirkwood_register_gate("usb0", CGC_BIT_USB0);
sdio = kirkwood_register_gate("sdio", CGC_BIT_SDIO);
crypto = kirkwood_register_gate("crypto", CGC_BIT_CRYPTO);
xor0 = kirkwood_register_gate("xor0", CGC_BIT_XOR0);
xor1 = kirkwood_register_gate("xor1", CGC_BIT_XOR1);
pex0 = kirkwood_register_gate_fn("pex0", CGC_BIT_PEX0,
- disable_pcie0);
+ NULL, disable_pcie0);
pex1 = kirkwood_register_gate_fn("pex1", CGC_BIT_PEX1,
- disable_pcie1);
+ NULL, disable_pcie1);
audio = kirkwood_register_gate("audio", CGC_BIT_AUDIO);
kirkwood_register_gate("tdm", CGC_BIT_TDM);
kirkwood_register_gate("tsu", CGC_BIT_TSU);
@@ -236,11 +260,18 @@ void __init kirkwood_clk_init(void)
orion_clkdev_add(NULL, "orion_nand", runit);
orion_clkdev_add(NULL, "mvsdio", sdio);
orion_clkdev_add(NULL, "mv_crypto", crypto);
- orion_clkdev_add(NULL, MV_XOR_SHARED_NAME ".0", xor0);
- orion_clkdev_add(NULL, MV_XOR_SHARED_NAME ".1", xor1);
+ orion_clkdev_add(NULL, MV_XOR_NAME ".0", xor0);
+ orion_clkdev_add(NULL, MV_XOR_NAME ".1", xor1);
orion_clkdev_add("0", "pcie", pex0);
orion_clkdev_add("1", "pcie", pex1);
orion_clkdev_add(NULL, "kirkwood-i2s", audio);
+ orion_clkdev_add(NULL, MV64XXX_I2C_CTLR_NAME ".0", runit);
+ orion_clkdev_add(NULL, MV64XXX_I2C_CTLR_NAME ".1", runit);
+
+ /* Marvell says runit is used by SPI, UART, NAND, TWSI, ...,
+ * so should never be gated.
+ */
+ clk_prepare_enable(runit);
}
/*****************************************************************************
@@ -259,7 +290,7 @@ void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
{
orion_ge00_init(eth_data,
GE00_PHYS_BASE, IRQ_KIRKWOOD_GE00_SUM,
- IRQ_KIRKWOOD_GE00_ERR);
+ IRQ_KIRKWOOD_GE00_ERR, 1600);
/* The interface forgets the MAC address assigned by u-boot if
the clock is turned off, so claim the clk now. */
clk_prepare_enable(ge0);
@@ -273,7 +304,7 @@ void __init kirkwood_ge01_init(struct mv643xx_eth_platform_data *eth_data)
{
orion_ge01_init(eth_data,
GE01_PHYS_BASE, IRQ_KIRKWOOD_GE01_SUM,
- IRQ_KIRKWOOD_GE01_ERR);
+ IRQ_KIRKWOOD_GE01_ERR, 1600);
clk_prepare_enable(ge1);
}
@@ -395,7 +426,7 @@ void __init kirkwood_sdio_init(struct mvsdio_platform_data *mvsdio_data)
/*****************************************************************************
* SPI
****************************************************************************/
-void __init kirkwood_spi_init()
+void __init kirkwood_spi_init(void)
{
orion_spi_init(SPI_PHYS_BASE);
}
@@ -475,6 +506,13 @@ void __init kirkwood_wdt_init(void)
void __init kirkwood_init_early(void)
{
orion_time_set_base(TIMER_VIRT_BASE);
+
+ /*
+ * Some Kirkwood devices allocate their coherent buffers from atomic
+ * context. Increase size of atomic coherent pool to make sure such
+ * the allocations won't fail.
+ */
+ init_dma_coherent_pool_size(SZ_1M);
}
int kirkwood_tclk;
@@ -596,6 +634,7 @@ char * __init kirkwood_id(void)
void __init kirkwood_l2_init(void)
{
+#ifdef CONFIG_CACHE_FEROCEON_L2
#ifdef CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH
writel(readl(L2_CONFIG_REG) | L2_WRITETHROUGH, L2_CONFIG_REG);
feroceon_l2_init(1);
@@ -603,12 +642,12 @@ void __init kirkwood_l2_init(void)
writel(readl(L2_CONFIG_REG) & ~L2_WRITETHROUGH, L2_CONFIG_REG);
feroceon_l2_init(0);
#endif
+#endif
}
void __init kirkwood_init(void)
{
- printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
- kirkwood_id(), kirkwood_tclk);
+ pr_info("Kirkwood: %s, TCLK=%d.\n", kirkwood_id(), kirkwood_tclk);
/*
* Disable propagation of mbus errors to the CPU local bus,
@@ -620,9 +659,7 @@ void __init kirkwood_init(void)
kirkwood_setup_cpu_mbus();
-#ifdef CONFIG_CACHE_FEROCEON_L2
kirkwood_l2_init();
-#endif
/* Setup root of clk tree */
kirkwood_clk_init();
@@ -634,7 +671,7 @@ void __init kirkwood_init(void)
kirkwood_xor1_init();
kirkwood_crypto_init();
-#ifdef CONFIG_KEXEC
+#ifdef CONFIG_KEXEC
kexec_reinit = kirkwood_enable_pcie;
#endif
}