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provide an early ioremap cookie of the system configuration register

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SVN-Revision: 32489
This commit is contained in:
Florian Fainelli 2012-06-23 11:03:50 +00:00
parent 98b2bc9189
commit 81e8757da4
6 changed files with 38 additions and 29 deletions
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18
target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/clock.c
View file

@ -16,6 +16,8 @@
#include <mach/mcs814x.h> #include <mach/mcs814x.h>
#include "common.h"
#define KHZ 1000 #define KHZ 1000
#define MHZ (KHZ * KHZ) #define MHZ (KHZ * KHZ)
@ -32,7 +34,7 @@ struct clk {
unsigned long divider; /* clock divider */ unsigned long divider; /* clock divider */
u32 usecount; /* reference count */ u32 usecount; /* reference count */
struct clk_ops *ops; /* clock operation */ struct clk_ops *ops; /* clock operation */
void __iomem *enable_reg; /* clock enable register */ u32 enable_reg; /* clock enable register */
u32 enable_mask; /* clock enable mask */ u32 enable_mask; /* clock enable mask */
}; };
@ -52,13 +54,13 @@ static int clk_local_onoff_enable(struct clk *clk, int enable)
if (!clk->enable_reg) if (!clk->enable_reg)
return 0; return 0;
tmp = __raw_readl(clk->enable_reg); tmp = __raw_readl(mcs814x_sysdbg_base + clk->enable_reg);
if (!enable) if (!enable)
tmp &= ~clk->enable_mask; tmp &= ~clk->enable_mask;
else else
tmp |= clk->enable_mask; tmp |= clk->enable_mask;
__raw_writel(tmp, clk->enable_reg); __raw_writel(tmp, mcs814x_sysdbg_base + clk->enable_reg);
return 0; return 0;
} }
@ -117,19 +119,19 @@ static struct clk clk_wdt = {
static struct clk clk_emac = { static struct clk clk_emac = {
.ops = &default_clk_ops, .ops = &default_clk_ops,
.enable_reg = (void __iomem *)(_CONFADDR_SYSDBG + SYSDBG_SYSCTL), .enable_reg = SYSDBG_SYSCTL,
.enable_mask = SYSCTL_EMAC, .enable_mask = SYSCTL_EMAC,
}; };
static struct clk clk_ephy = { static struct clk clk_ephy = {
.ops = &default_clk_ops, .ops = &default_clk_ops,
.enable_reg = (void __iomem *)(_CONFADDR_SYSDBG + SYSDBG_PLL_CTL), .enable_reg = SYSDBG_PLL_CTL,
.enable_mask = ~(1 << 0), .enable_mask = ~SYSCTL_EPHY, /* active low */
}; };
static struct clk clk_cipher = { static struct clk clk_cipher = {
.ops = &default_clk_ops, .ops = &default_clk_ops,
.enable_reg = (void __iomem *)(_CONFADDR_SYSDBG + SYSDBG_SYSCTL), .enable_reg = SYSDBG_SYSCTL,
.enable_mask = SYSCTL_CIPHER, .enable_mask = SYSCTL_CIPHER,
}; };
@ -252,7 +254,7 @@ void __init mcs814x_clk_init(void)
clkdev_add_table(mcs814x_chip_clks, ARRAY_SIZE(mcs814x_chip_clks)); clkdev_add_table(mcs814x_chip_clks, ARRAY_SIZE(mcs814x_chip_clks));
/* read the bootstrap registers to know the exact clocking scheme */ /* read the bootstrap registers to know the exact clocking scheme */
bs1 = __raw_readl(_CONFADDR_SYSDBG + SYSDBG_BS1); bs1 = __raw_readl(mcs814x_sysdbg_base + SYSDBG_BS1);
cpu_freq = (bs1 >> CPU_FREQ_SHIFT) & CPU_FREQ_MASK; cpu_freq = (bs1 >> CPU_FREQ_SHIFT) & CPU_FREQ_MASK;
pr_info("CPU frequency: %lu (kHz)\n", cpu_freq_table[cpu_freq]); pr_info("CPU frequency: %lu (kHz)\n", cpu_freq_table[cpu_freq]);

23
target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/common.c
View file

@ -23,6 +23,8 @@
#include <asm/pgtable.h> #include <asm/pgtable.h>
#include <asm/mach/map.h> #include <asm/mach/map.h>
void __iomem *mcs814x_sysdbg_base;
static struct map_desc mcs814x_io_desc[] __initdata = { static struct map_desc mcs814x_io_desc[] __initdata = {
{ {
.virtual = MCS814X_IO_BASE, .virtual = MCS814X_IO_BASE,
@ -65,34 +67,34 @@ static void mcs814x_eth_hardware_filter_set(u8 value)
{ {
u32 reg; u32 reg;
reg = __raw_readl(_CONFADDR_DBGLED); reg = __raw_readl(MCS814X_VIRT_BASE + MCS814X_DBGLED);
if (value) if (value)
reg |= 0x80; reg |= 0x80;
else else
reg &= ~0x80; reg &= ~0x80;
__raw_writel(reg, _CONFADDR_DBGLED); __raw_writel(reg, MCS814X_VIRT_BASE + MCS814X_DBGLED);
} }
static void mcs814x_eth_led_cfg_set(u8 cfg) static void mcs814x_eth_led_cfg_set(u8 cfg)
{ {
u32 reg; u32 reg;
reg = __raw_readl(_CONFADDR_SYSDBG + SYSDBG_BS2); reg = __raw_readl(mcs814x_sysdbg_base + SYSDBG_BS2);
reg &= ~LED_CFG_MASK; reg &= ~LED_CFG_MASK;
reg |= cfg; reg |= cfg;
__raw_writel(reg, _CONFADDR_SYSDBG + SYSDBG_BS2); __raw_writel(reg, mcs814x_sysdbg_base + SYSDBG_BS2);
} }
static void mcs814x_eth_buffer_shifting_set(u8 value) static void mcs814x_eth_buffer_shifting_set(u8 value)
{ {
u8 reg; u8 reg;
reg = __raw_readb(_CONFADDR_SYSDBG + SYSDBG_SYSCTL_MAC); reg = __raw_readb(mcs814x_sysdbg_base + SYSDBG_SYSCTL_MAC);
if (value) if (value)
reg |= BUF_SHIFT_BIT; reg |= BUF_SHIFT_BIT;
else else
reg &= ~BUF_SHIFT_BIT; reg &= ~BUF_SHIFT_BIT;
__raw_writeb(reg, _CONFADDR_SYSDBG + SYSDBG_SYSCTL_MAC); __raw_writeb(reg, mcs814x_sysdbg_base + SYSDBG_SYSCTL_MAC);
} }
static struct of_device_id mcs814x_eth_ids[] __initdata = { static struct of_device_id mcs814x_eth_ids[] __initdata = {
@ -130,7 +132,7 @@ void __init mcs814x_init_machine(void)
u32 bs2, cpu_mode; u32 bs2, cpu_mode;
int gpio; int gpio;
bs2 = __raw_readl(_CONFADDR_SYSDBG + SYSDBG_BS2); bs2 = __raw_readl(mcs814x_sysdbg_base + SYSDBG_BS2);
cpu_mode = (bs2 >> CPU_MODE_SHIFT) & CPU_MODE_MASK; cpu_mode = (bs2 >> CPU_MODE_SHIFT) & CPU_MODE_MASK;
pr_info("CPU mode: %s\n", cpu_modes[cpu_mode].name); pr_info("CPU mode: %s\n", cpu_modes[cpu_mode].name);
@ -148,9 +150,14 @@ void __init mcs814x_init_machine(void)
void __init mcs814x_map_io(void) void __init mcs814x_map_io(void)
{ {
iotable_init(mcs814x_io_desc, ARRAY_SIZE(mcs814x_io_desc)); iotable_init(mcs814x_io_desc, ARRAY_SIZE(mcs814x_io_desc));
mcs814x_sysdbg_base = ioremap(MCS814X_IO_START + MCS814X_SYSDBG,
MCS814X_SYSDBG_SIZE);
if (!mcs814x_sysdbg_base)
panic("unable to remap sysdbg base");
} }
void mcs814x_restart(char mode, const char *cmd) void mcs814x_restart(char mode, const char *cmd)
{ {
__raw_writel(~(1 << 31), _CONFADDR_SYSDBG); __raw_writel(~(1 << 31), mcs814x_sysdbg_base);
} }

1
target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/common.h
View file

@ -10,5 +10,6 @@ void mcs814x_init_machine(void);
void mcs814x_handle_irq(struct pt_regs *regs); void mcs814x_handle_irq(struct pt_regs *regs);
void mcs814x_restart(char mode, const char *cmd); void mcs814x_restart(char mode, const char *cmd);
extern struct sys_timer mcs814x_timer; extern struct sys_timer mcs814x_timer;
extern void __iomem *mcs814x_sysdbg_base;
#endif /* __ARCH_MCS814X_COMMON_H */ #endif /* __ARCH_MCS814X_COMMON_H */

8
target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/debug-macro.S
View file

@ -1,10 +1,10 @@
#include <mach/mcs814x.h> #include <mach/mcs814x.h>
.macro addruart, rp, rv, tmp .macro addruart, rp, rv, tmp
ldr \rp, =_PHYS_CONFADDR ldr \rp, =MCS814X_PHYS_BASE
ldr \rv, =_VIRT_CONFADDR ldr \rv, =MCS814X_VIRT_BASE
orr \rp, \rp, #_CONFOFFSET_UART orr \rp, \rp, #MCS814X_UART
orr \rv, \rv, #_CONFOFFSET_UART orr \rv, \rv, #MCS814X_UART
.endm .endm
#define UART_SHIFT 2 #define UART_SHIFT 2

15
target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/mcs814x.h
View file

@ -20,15 +20,13 @@
#define MCS814X_IRQ_MASK 0x20 #define MCS814X_IRQ_MASK 0x20
#define MCS814X_IRQ_STS0 0x40 #define MCS814X_IRQ_STS0 0x40
#define _PHYS_CONFADDR 0x40000000 #define MCS814X_PHYS_BASE 0x40000000
#define _VIRT_CONFADDR MCS814X_IO_BASE #define MCS814X_VIRT_BASE MCS814X_IO_BASE
#define _CONFOFFSET_UART 0x000DC000 #define MCS814X_UART 0x000DC000
#define _CONFOFFSET_DBGLED 0x000EC000 #define MCS814X_DBGLED 0x000EC000
#define _CONFOFFSET_SYSDBG 0x000F8000 #define MCS814X_SYSDBG 0x000F8000
#define MCS814X_SYSDBG_SIZE 0x50
#define _CONFADDR_DBGLED (_VIRT_CONFADDR + _CONFOFFSET_DBGLED)
#define _CONFADDR_SYSDBG (_VIRT_CONFADDR + _CONFOFFSET_SYSDBG)
/* System configuration and bootstrap registers */ /* System configuration and bootstrap registers */
#define SYSDBG_BS1 0x00 #define SYSDBG_BS1 0x00
@ -46,6 +44,7 @@
#define SYSDBG_SYSCTL 0x08 #define SYSDBG_SYSCTL 0x08
#define SYSCTL_EMAC (1 << 0) #define SYSCTL_EMAC (1 << 0)
#define SYSCTL_EPHY (1 << 1) /* active low */
#define SYSCTL_CIPHER (1 << 16) #define SYSCTL_CIPHER (1 << 16)
#define SYSDBG_PLL_CTL 0x3C #define SYSDBG_PLL_CTL 0x3C

2
target/linux/mcs814x/files-3.3/arch/arm/mach-mcs814x/include/mach/uncompress.h
View file

@ -32,7 +32,7 @@ static inline void flush(void)
static inline void arch_decomp_setup(void) static inline void arch_decomp_setup(void)
{ {
if (soc_is_mcs8140()) if (soc_is_mcs8140())
uart_base = (void __iomem *)(_PHYS_CONFADDR + _CONFOFFSET_UART); uart_base = (void __iomem *)(MCS814X_PHYS_BASE +MCS814X_UART);
} }
#define arch_decomp_wdog() #define arch_decomp_wdog()