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ARM: cns3xxx: Use IO memory accessors everywhere
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Before it isn't too late let's switch to IO memory accessors.
This patch converts all current _REG users and _REG definitions.
There should be no functional changes.

Suggested-by: Ben Dooks <ben-linux@fluff.org>
Suggested-by: Sergei Shtylyov <sshtylyov@mvista.com>
Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
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Anton Vorontsov committed Jun 8, 2010
1 parent 9dda696 commit 6eb5d14
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Showing 2 changed files with 68 additions and 54 deletions.
91 changes: 45 additions & 46 deletions arch/arm/mach-cns3xxx/include/mach/cns3xxx.h
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Original file line number Diff line number Diff line change
Expand Up @@ -247,37 +247,36 @@
* Misc block
*/
#define MISC_MEM_MAP(offs) (void __iomem *)(CNS3XXX_MISC_BASE_VIRT + (offs))
#define MISC_MEM_MAP_VALUE(offset) (*((volatile unsigned int *)(CNS3XXX_MISC_BASE_VIRT + (offset))))

#define MISC_MEMORY_REMAP_REG MISC_MEM_MAP_VALUE(0x00)
#define MISC_CHIP_CONFIG_REG MISC_MEM_MAP_VALUE(0x04)
#define MISC_DEBUG_PROBE_DATA_REG MISC_MEM_MAP_VALUE(0x08)
#define MISC_DEBUG_PROBE_SELECTION_REG MISC_MEM_MAP_VALUE(0x0C)
#define MISC_IO_PIN_FUNC_SELECTION_REG MISC_MEM_MAP_VALUE(0x10)
#define MISC_GPIOA_PIN_ENABLE_REG MISC_MEM_MAP_VALUE(0x14)
#define MISC_GPIOB_PIN_ENABLE_REG MISC_MEM_MAP_VALUE(0x18)
#define MISC_IO_PAD_DRIVE_STRENGTH_CTRL_A MISC_MEM_MAP_VALUE(0x1C)
#define MISC_IO_PAD_DRIVE_STRENGTH_CTRL_B MISC_MEM_MAP_VALUE(0x20)
#define MISC_GPIOA_15_0_PULL_CTRL_REG MISC_MEM_MAP_VALUE(0x24)
#define MISC_GPIOA_16_31_PULL_CTRL_REG MISC_MEM_MAP_VALUE(0x28)
#define MISC_GPIOB_15_0_PULL_CTRL_REG MISC_MEM_MAP_VALUE(0x2C)
#define MISC_GPIOB_16_31_PULL_CTRL_REG MISC_MEM_MAP_VALUE(0x30)
#define MISC_IO_PULL_CTRL_REG MISC_MEM_MAP_VALUE(0x34)
#define MISC_E_FUSE_31_0_REG MISC_MEM_MAP_VALUE(0x40)
#define MISC_E_FUSE_63_32_REG MISC_MEM_MAP_VALUE(0x44)
#define MISC_E_FUSE_95_64_REG MISC_MEM_MAP_VALUE(0x48)
#define MISC_E_FUSE_127_96_REG MISC_MEM_MAP_VALUE(0x4C)
#define MISC_SOFTWARE_TEST_1_REG MISC_MEM_MAP_VALUE(0x50)
#define MISC_SOFTWARE_TEST_2_REG MISC_MEM_MAP_VALUE(0x54)

#define MISC_SATA_POWER_MODE MISC_MEM_MAP_VALUE(0x310)

#define MISC_USB_CFG_REG MISC_MEM_MAP_VALUE(0x800)
#define MISC_USB_STS_REG MISC_MEM_MAP_VALUE(0x804)
#define MISC_USBPHY00_CFG_REG MISC_MEM_MAP_VALUE(0x808)
#define MISC_USBPHY01_CFG_REG MISC_MEM_MAP_VALUE(0x80c)
#define MISC_USBPHY10_CFG_REG MISC_MEM_MAP_VALUE(0x810)
#define MISC_USBPHY11_CFG_REG MISC_MEM_MAP_VALUE(0x814)

#define MISC_MEMORY_REMAP_REG MISC_MEM_MAP(0x00)
#define MISC_CHIP_CONFIG_REG MISC_MEM_MAP(0x04)
#define MISC_DEBUG_PROBE_DATA_REG MISC_MEM_MAP(0x08)
#define MISC_DEBUG_PROBE_SELECTION_REG MISC_MEM_MAP(0x0C)
#define MISC_IO_PIN_FUNC_SELECTION_REG MISC_MEM_MAP(0x10)
#define MISC_GPIOA_PIN_ENABLE_REG MISC_MEM_MAP(0x14)
#define MISC_GPIOB_PIN_ENABLE_REG MISC_MEM_MAP(0x18)
#define MISC_IO_PAD_DRIVE_STRENGTH_CTRL_A MISC_MEM_MAP(0x1C)
#define MISC_IO_PAD_DRIVE_STRENGTH_CTRL_B MISC_MEM_MAP(0x20)
#define MISC_GPIOA_15_0_PULL_CTRL_REG MISC_MEM_MAP(0x24)
#define MISC_GPIOA_16_31_PULL_CTRL_REG MISC_MEM_MAP(0x28)
#define MISC_GPIOB_15_0_PULL_CTRL_REG MISC_MEM_MAP(0x2C)
#define MISC_GPIOB_16_31_PULL_CTRL_REG MISC_MEM_MAP(0x30)
#define MISC_IO_PULL_CTRL_REG MISC_MEM_MAP(0x34)
#define MISC_E_FUSE_31_0_REG MISC_MEM_MAP(0x40)
#define MISC_E_FUSE_63_32_REG MISC_MEM_MAP(0x44)
#define MISC_E_FUSE_95_64_REG MISC_MEM_MAP(0x48)
#define MISC_E_FUSE_127_96_REG MISC_MEM_MAP(0x4C)
#define MISC_SOFTWARE_TEST_1_REG MISC_MEM_MAP(0x50)
#define MISC_SOFTWARE_TEST_2_REG MISC_MEM_MAP(0x54)

#define MISC_SATA_POWER_MODE MISC_MEM_MAP(0x310)

#define MISC_USB_CFG_REG MISC_MEM_MAP(0x800)
#define MISC_USB_STS_REG MISC_MEM_MAP(0x804)
#define MISC_USBPHY00_CFG_REG MISC_MEM_MAP(0x808)
#define MISC_USBPHY01_CFG_REG MISC_MEM_MAP(0x80c)
#define MISC_USBPHY10_CFG_REG MISC_MEM_MAP(0x810)
#define MISC_USBPHY11_CFG_REG MISC_MEM_MAP(0x814)

#define MISC_PCIEPHY_CMCTL(x) MISC_MEM_MAP(0x900 + (x) * 0x004)
#define MISC_PCIEPHY_CTL(x) MISC_MEM_MAP(0x940 + (x) * 0x100)
Expand All @@ -300,21 +299,21 @@
/*
* Power management and clock control
*/
#define PMU_REG_VALUE(offset) (*((volatile unsigned int *)(CNS3XXX_PM_BASE_VIRT + (offset))))

#define PM_CLK_GATE_REG PMU_REG_VALUE(0x000)
#define PM_SOFT_RST_REG PMU_REG_VALUE(0x004)
#define PM_HS_CFG_REG PMU_REG_VALUE(0x008)
#define PM_CACTIVE_STA_REG PMU_REG_VALUE(0x00C)
#define PM_PWR_STA_REG PMU_REG_VALUE(0x010)
#define PM_CLK_CTRL_REG PMU_REG_VALUE(0x014)
#define PM_PLL_LCD_I2S_CTRL_REG PMU_REG_VALUE(0x018)
#define PM_PLL_HM_PD_CTRL_REG PMU_REG_VALUE(0x01C)
#define PM_REGULAT_CTRL_REG PMU_REG_VALUE(0x020)
#define PM_WDT_CTRL_REG PMU_REG_VALUE(0x024)
#define PM_WU_CTRL0_REG PMU_REG_VALUE(0x028)
#define PM_WU_CTRL1_REG PMU_REG_VALUE(0x02C)
#define PM_CSR_REG PMU_REG_VALUE(0x030)
#define PMU_MEM_MAP(offs) (void __iomem *)(CNS3XXX_PM_BASE_VIRT + (offs))

#define PM_CLK_GATE_REG PMU_MEM_MAP(0x000)
#define PM_SOFT_RST_REG PMU_MEM_MAP(0x004)
#define PM_HS_CFG_REG PMU_MEM_MAP(0x008)
#define PM_CACTIVE_STA_REG PMU_MEM_MAP(0x00C)
#define PM_PWR_STA_REG PMU_MEM_MAP(0x010)
#define PM_CLK_CTRL_REG PMU_MEM_MAP(0x014)
#define PM_PLL_LCD_I2S_CTRL_REG PMU_MEM_MAP(0x018)
#define PM_PLL_HM_PD_CTRL_REG PMU_MEM_MAP(0x01C)
#define PM_REGULAT_CTRL_REG PMU_MEM_MAP(0x020)
#define PM_WDT_CTRL_REG PMU_MEM_MAP(0x024)
#define PM_WU_CTRL0_REG PMU_MEM_MAP(0x028)
#define PM_WU_CTRL1_REG PMU_MEM_MAP(0x02C)
#define PM_CSR_REG PMU_MEM_MAP(0x030)

/* PM_CLK_GATE_REG */
#define PM_CLK_GATE_REG_OFFSET_SDIO (25)
Expand Down
31 changes: 23 additions & 8 deletions arch/arm/mach-cns3xxx/pm.c
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Original file line number Diff line number Diff line change
Expand Up @@ -6,41 +6,55 @@
* published by the Free Software Foundation.
*/

#include <linux/io.h>
#include <linux/delay.h>
#include <mach/system.h>
#include <mach/cns3xxx.h>

void cns3xxx_pwr_clk_en(unsigned int block)
{
PM_CLK_GATE_REG |= (block & PM_CLK_GATE_REG_MASK);
u32 reg = __raw_readl(PM_CLK_GATE_REG);

reg |= (block & PM_CLK_GATE_REG_MASK);
__raw_writel(reg, PM_CLK_GATE_REG);
}

void cns3xxx_pwr_power_up(unsigned int block)
{
PM_PLL_HM_PD_CTRL_REG &= ~(block & CNS3XXX_PWR_PLL_ALL);
u32 reg = __raw_readl(PM_PLL_HM_PD_CTRL_REG);

reg &= ~(block & CNS3XXX_PWR_PLL_ALL);
__raw_writel(reg, PM_PLL_HM_PD_CTRL_REG);

/* Wait for 300us for the PLL output clock locked. */
udelay(300);
};

void cns3xxx_pwr_power_down(unsigned int block)
{
u32 reg = __raw_readl(PM_PLL_HM_PD_CTRL_REG);

/* write '1' to power down */
PM_PLL_HM_PD_CTRL_REG |= (block & CNS3XXX_PWR_PLL_ALL);
reg |= (block & CNS3XXX_PWR_PLL_ALL);
__raw_writel(reg, PM_PLL_HM_PD_CTRL_REG);
};

static void cns3xxx_pwr_soft_rst_force(unsigned int block)
{
u32 reg = __raw_readl(PM_SOFT_RST_REG);

/*
* bit 0, 28, 29 => program low to reset,
* the other else program low and then high
*/
if (block & 0x30000001) {
PM_SOFT_RST_REG &= ~(block & PM_SOFT_RST_REG_MASK);
reg &= ~(block & PM_SOFT_RST_REG_MASK);
} else {
PM_SOFT_RST_REG &= ~(block & PM_SOFT_RST_REG_MASK);
PM_SOFT_RST_REG |= (block & PM_SOFT_RST_REG_MASK);
reg &= ~(block & PM_SOFT_RST_REG_MASK);
reg |= (block & PM_SOFT_RST_REG_MASK);
}

__raw_writel(reg, PM_SOFT_RST_REG);
}

void cns3xxx_pwr_soft_rst(unsigned int block)
Expand Down Expand Up @@ -73,12 +87,13 @@ void arch_reset(char mode, const char *cmd)
*/
int cns3xxx_cpu_clock(void)
{
u32 reg = __raw_readl(PM_CLK_CTRL_REG);
int cpu;
int cpu_sel;
int div_sel;

cpu_sel = (PM_CLK_CTRL_REG >> PM_CLK_CTRL_REG_OFFSET_PLL_CPU_SEL) & 0xf;
div_sel = (PM_CLK_CTRL_REG >> PM_CLK_CTRL_REG_OFFSET_CPU_CLK_DIV) & 0x3;
cpu_sel = (reg >> PM_CLK_CTRL_REG_OFFSET_PLL_CPU_SEL) & 0xf;
div_sel = (reg >> PM_CLK_CTRL_REG_OFFSET_CPU_CLK_DIV) & 0x3;

cpu = (300 + ((cpu_sel / 3) * 100) + ((cpu_sel % 3) * 33)) >> div_sel;

Expand Down

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