diff options
Diffstat (limited to 'arch/arm/plat-stmp3xxx')
28 files changed, 0 insertions, 3793 deletions
diff --git a/arch/arm/plat-stmp3xxx/Kconfig b/arch/arm/plat-stmp3xxx/Kconfig deleted file mode 100644 index e6e312b6bdb5..000000000000 --- a/arch/arm/plat-stmp3xxx/Kconfig +++ /dev/null @@ -1,7 +0,0 @@ -if ARCH_STMP3XXX - -menu "Freescale STMP3xxx implementations" - -endmenu - -endif diff --git a/arch/arm/plat-stmp3xxx/Makefile b/arch/arm/plat-stmp3xxx/Makefile deleted file mode 100644 index 31dd518f37a5..000000000000 --- a/arch/arm/plat-stmp3xxx/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -# -# Makefile for the linux kernel. -# -# Object file lists. -obj-y += core.o timer.o irq.o dma.o clock.o pinmux.o devices.o diff --git a/arch/arm/plat-stmp3xxx/clock.c b/arch/arm/plat-stmp3xxx/clock.c deleted file mode 100644 index 2e712e17ce72..000000000000 --- a/arch/arm/plat-stmp3xxx/clock.c +++ /dev/null @@ -1,1134 +0,0 @@ -/* - * Clock manipulation routines for Freescale STMP37XX/STMP378X - * - * Author: Vitaly Wool <vital@embeddedalley.com> - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#define DEBUG -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/clk.h> -#include <linux/spinlock.h> -#include <linux/errno.h> -#include <linux/err.h> -#include <linux/delay.h> -#include <linux/io.h> -#include <linux/clkdev.h> - -#include <asm/mach-types.h> -#include <mach/platform.h> -#include <mach/regs-clkctrl.h> - -#include "clock.h" - -static DEFINE_SPINLOCK(clocks_lock); - -static struct clk osc_24M; -static struct clk pll_clk; -static struct clk cpu_clk; -static struct clk hclk; - -static int propagate_rate(struct clk *); - -static inline int clk_is_busy(struct clk *clk) -{ - return __raw_readl(clk->busy_reg) & (1 << clk->busy_bit); -} - -static inline int clk_good(struct clk *clk) -{ - return clk && !IS_ERR(clk) && clk->ops; -} - -static int std_clk_enable(struct clk *clk) -{ - if (clk->enable_reg) { - u32 clk_reg = __raw_readl(clk->enable_reg); - if (clk->enable_negate) - clk_reg &= ~(1 << clk->enable_shift); - else - clk_reg |= (1 << clk->enable_shift); - __raw_writel(clk_reg, clk->enable_reg); - if (clk->enable_wait) - udelay(clk->enable_wait); - return 0; - } else - return -EINVAL; -} - -static int std_clk_disable(struct clk *clk) -{ - if (clk->enable_reg) { - u32 clk_reg = __raw_readl(clk->enable_reg); - if (clk->enable_negate) - clk_reg |= (1 << clk->enable_shift); - else - clk_reg &= ~(1 << clk->enable_shift); - __raw_writel(clk_reg, clk->enable_reg); - return 0; - } else - return -EINVAL; -} - -static int io_set_rate(struct clk *clk, u32 rate) -{ - u32 reg_frac, clkctrl_frac; - int i, ret = 0, mask = 0x1f; - - clkctrl_frac = (clk->parent->rate * 18 + rate - 1) / rate; - - if (clkctrl_frac < 18 || clkctrl_frac > 35) { - ret = -EINVAL; - goto out; - } - - reg_frac = __raw_readl(clk->scale_reg); - reg_frac &= ~(mask << clk->scale_shift); - __raw_writel(reg_frac | (clkctrl_frac << clk->scale_shift), - clk->scale_reg); - if (clk->busy_reg) { - for (i = 10000; i; i--) - if (!clk_is_busy(clk)) - break; - if (!i) - ret = -ETIMEDOUT; - else - ret = 0; - } -out: - return ret; -} - -static long io_get_rate(struct clk *clk) -{ - long rate = clk->parent->rate * 18; - int mask = 0x1f; - - rate /= (__raw_readl(clk->scale_reg) >> clk->scale_shift) & mask; - clk->rate = rate; - - return rate; -} - -static long per_get_rate(struct clk *clk) -{ - long rate = clk->parent->rate; - long div; - const int mask = 0xff; - - if (clk->enable_reg && - !(__raw_readl(clk->enable_reg) & clk->enable_shift)) - clk->rate = 0; - else { - div = (__raw_readl(clk->scale_reg) >> clk->scale_shift) & mask; - if (div) - rate /= div; - clk->rate = rate; - } - - return clk->rate; -} - -static int per_set_rate(struct clk *clk, u32 rate) -{ - int ret = -EINVAL; - int div = (clk->parent->rate + rate - 1) / rate; - u32 reg_frac; - const int mask = 0xff; - int try = 10; - int i = -1; - - if (div == 0 || div > mask) - goto out; - - reg_frac = __raw_readl(clk->scale_reg); - reg_frac &= ~(mask << clk->scale_shift); - - while (try--) { - __raw_writel(reg_frac | (div << clk->scale_shift), - clk->scale_reg); - - if (clk->busy_reg) { - for (i = 10000; i; i--) - if (!clk_is_busy(clk)) - break; - } - if (i) - break; - } - - if (!i) - ret = -ETIMEDOUT; - else - ret = 0; - -out: - if (ret != 0) - printk(KERN_ERR "%s: error %d\n", __func__, ret); - return ret; -} - -static long lcdif_get_rate(struct clk *clk) -{ - long rate = clk->parent->rate; - long div; - const int mask = 0xff; - - div = (__raw_readl(clk->scale_reg) >> clk->scale_shift) & mask; - if (div) { - rate /= div; - div = (__raw_readl(REGS_CLKCTRL_BASE + HW_CLKCTRL_FRAC) & - BM_CLKCTRL_FRAC_PIXFRAC) >> BP_CLKCTRL_FRAC_PIXFRAC; - rate /= div; - } - clk->rate = rate; - - return rate; -} - -static int lcdif_set_rate(struct clk *clk, u32 rate) -{ - int ret = 0; - /* - * On 3700, we can get most timings exact by modifying ref_pix - * and the divider, but keeping the phase timings at 1 (2 - * phases per cycle). - * - * ref_pix can be between 480e6*18/35=246.9MHz and 480e6*18/18=480MHz, - * which is between 18/(18*480e6)=2.084ns and 35/(18*480e6)=4.050ns. - * - * ns_cycle >= 2*18e3/(18*480) = 25/6 - * ns_cycle <= 2*35e3/(18*480) = 875/108 - * - * Multiply the ns_cycle by 'div' to lengthen it until it fits the - * bounds. This is the divider we'll use after ref_pix. - * - * 6 * ns_cycle >= 25 * div - * 108 * ns_cycle <= 875 * div - */ - u32 ns_cycle = 1000000 / rate; - u32 div, reg_val; - u32 lowest_result = (u32) -1; - u32 lowest_div = 0, lowest_fracdiv = 0; - - for (div = 1; div < 256; ++div) { - u32 fracdiv; - u32 ps_result; - int lower_bound = 6 * ns_cycle >= 25 * div; - int upper_bound = 108 * ns_cycle <= 875 * div; - if (!lower_bound) - break; - if (!upper_bound) - continue; - /* - * Found a matching div. Calculate fractional divider needed, - * rounded up. - */ - fracdiv = ((clk->parent->rate / 1000 * 18 / 2) * - ns_cycle + 1000 * div - 1) / - (1000 * div); - if (fracdiv < 18 || fracdiv > 35) { - ret = -EINVAL; - goto out; - } - /* Calculate the actual cycle time this results in */ - ps_result = 6250 * div * fracdiv / 27; - - /* Use the fastest result that doesn't break ns_cycle */ - if (ps_result <= lowest_result) { - lowest_result = ps_result; - lowest_div = div; - lowest_fracdiv = fracdiv; - } - } - - if (div >= 256 || lowest_result == (u32) -1) { - ret = -EINVAL; - goto out; - } - pr_debug("Programming PFD=%u,DIV=%u ref_pix=%uMHz " - "PIXCLK=%uMHz cycle=%u.%03uns\n", - lowest_fracdiv, lowest_div, - 480*18/lowest_fracdiv, 480*18/lowest_fracdiv/lowest_div, - lowest_result / 1000, lowest_result % 1000); - - /* Program ref_pix phase fractional divider */ - reg_val = __raw_readl(REGS_CLKCTRL_BASE + HW_CLKCTRL_FRAC); - reg_val &= ~BM_CLKCTRL_FRAC_PIXFRAC; - reg_val |= BF(lowest_fracdiv, CLKCTRL_FRAC_PIXFRAC); - __raw_writel(reg_val, REGS_CLKCTRL_BASE + HW_CLKCTRL_FRAC); - - /* Ungate PFD */ - stmp3xxx_clearl(BM_CLKCTRL_FRAC_CLKGATEPIX, - REGS_CLKCTRL_BASE + HW_CLKCTRL_FRAC); - - /* Program pix divider */ - reg_val = __raw_readl(clk->scale_reg); - reg_val &= ~(BM_CLKCTRL_PIX_DIV | BM_CLKCTRL_PIX_CLKGATE); - reg_val |= BF(lowest_div, CLKCTRL_PIX_DIV); - __raw_writel(reg_val, clk->scale_reg); - - /* Wait for divider update */ - if (clk->busy_reg) { - int i; - for (i = 10000; i; i--) - if (!clk_is_busy(clk)) - break; - if (!i) { - ret = -ETIMEDOUT; - goto out; - } - } - - /* Switch to ref_pix source */ - reg_val = __raw_readl(REGS_CLKCTRL_BASE + HW_CLKCTRL_CLKSEQ); - reg_val &= ~BM_CLKCTRL_CLKSEQ_BYPASS_PIX; - __raw_writel(reg_val, REGS_CLKCTRL_BASE + HW_CLKCTRL_CLKSEQ); - -out: - return ret; -} - - -static int cpu_set_rate(struct clk *clk, u32 rate) -{ - u32 reg_val; - - if (rate < 24000) - return -EINVAL; - else if (rate == 24000) { - /* switch to the 24M source */ - clk_set_parent(clk, &osc_24M); - } else { - int i; - u32 clkctrl_cpu = 1; - u32 c = clkctrl_cpu; - u32 clkctrl_frac = 1; - u32 val; - for ( ; c < 0x40; c++) { - u32 f = (pll_clk.rate*18/c + rate/2) / rate; - int s1, s2; - - if (f < 18 || f > 35) - continue; - s1 = pll_clk.rate*18/clkctrl_frac/clkctrl_cpu - rate; - s2 = pll_clk.rate*18/c/f - rate; - pr_debug("%s: s1 %d, s2 %d\n", __func__, s1, s2); - if (abs(s1) > abs(s2)) { - clkctrl_cpu = c; - clkctrl_frac = f; - } - if (s2 == 0) - break; - }; - pr_debug("%s: clkctrl_cpu %d, clkctrl_frac %d\n", __func__, - clkctrl_cpu, clkctrl_frac); - if (c == 0x40) { - int d = pll_clk.rate*18/clkctrl_frac/clkctrl_cpu - - rate; - if (abs(d) > 100 || - clkctrl_frac < 18 || clkctrl_frac > 35) - return -EINVAL; - } - - /* 4.6.2 */ - val = __raw_readl(clk->scale_reg); - val &= ~(0x3f << clk->scale_shift); - val |= clkctrl_frac; - clk_set_parent(clk, &osc_24M); - udelay(10); - __raw_writel(val, clk->scale_reg); - /* ungate */ - __raw_writel(1<<7, clk->scale_reg + 8); - /* write clkctrl_cpu */ - clk->saved_div = clkctrl_cpu; - - reg_val = __raw_readl(REGS_CLKCTRL_BASE + HW_CLKCTRL_CPU); - reg_val &= ~0x3F; - reg_val |= clkctrl_cpu; - __raw_writel(reg_val, REGS_CLKCTRL_BASE + HW_CLKCTRL_CPU); - - for (i = 10000; i; i--) - if (!clk_is_busy(clk)) - break; - if (!i) { - printk(KERN_ERR "couldn't set up CPU divisor\n"); - return -ETIMEDOUT; - } - clk_set_parent(clk, &pll_clk); - clk->saved_div = 0; - udelay(10); - } - return 0; -} - -static long cpu_get_rate(struct clk *clk) -{ - long rate = clk->parent->rate * 18; - - rate /= (__raw_readl(clk->scale_reg) >> clk->scale_shift) & 0x3f; - rate /= __raw_readl(REGS_CLKCTRL_BASE + HW_CLKCTRL_CPU) & 0x3f; - rate = ((rate + 9) / 10) * 10; - clk->rate = rate; - - return rate; -} - -static long cpu_round_rate(struct clk *clk, u32 rate) -{ - unsigned long r = 0; - - if (rate <= 24000) - r = 24000; - else { - u32 clkctrl_cpu = 1; - u32 clkctrl_frac; - do { - clkctrl_frac = - (pll_clk.rate*18 / clkctrl_cpu + rate/2) / rate; - if (clkctrl_frac > 35) - continue; - if (pll_clk.rate*18 / clkctrl_frac / clkctrl_cpu/10 == - rate / 10) - break; - } while (pll_clk.rate / 2 >= clkctrl_cpu++ * rate); - if (pll_clk.rate / 2 < (clkctrl_cpu - 1) * rate) - clkctrl_cpu--; - pr_debug("%s: clkctrl_cpu %d, clkctrl_frac %d\n", __func__, - clkctrl_cpu, clkctrl_frac); - if (clkctrl_frac < 18) - clkctrl_frac = 18; - if (clkctrl_frac > 35) - clkctrl_frac = 35; - - r = pll_clk.rate * 18; - r /= clkctrl_frac; - r /= clkctrl_cpu; - r = 10 * ((r + 9) / 10); - } - return r; -} - -static long emi_get_rate(struct clk *clk) -{ - long rate = clk->parent->rate * 18; - - rate /= (__raw_readl(clk->scale_reg) >> clk->scale_shift) & 0x3f; - rate /= __raw_readl(REGS_CLKCTRL_BASE + HW_CLKCTRL_EMI) & 0x3f; - clk->rate = rate; - - return rate; -} - -static int clkseq_set_parent(struct clk *clk, struct clk *parent) -{ - int ret = -EINVAL; - int shift = 8; - - /* bypass? */ - if (parent == &osc_24M) - shift = 4; - - if (clk->bypass_reg) { -#ifdef CONFIG_ARCH_STMP378X - u32 hbus_val, cpu_val; - - if (clk == &cpu_clk && shift == 4) { - hbus_val = __raw_readl(REGS_CLKCTRL_BASE + - HW_CLKCTRL_HBUS); - cpu_val = __raw_readl(REGS_CLKCTRL_BASE + - HW_CLKCTRL_CPU); - - hbus_val &= ~(BM_CLKCTRL_HBUS_DIV_FRAC_EN | - BM_CLKCTRL_HBUS_DIV); - clk->saved_div = cpu_val & BM_CLKCTRL_CPU_DIV_CPU; - cpu_val &= ~BM_CLKCTRL_CPU_DIV_CPU; - cpu_val |= 1; - - if (machine_is_stmp378x()) { - __raw_writel(hbus_val, - REGS_CLKCTRL_BASE + HW_CLKCTRL_HBUS); - __raw_writel(cpu_val, - REGS_CLKCTRL_BASE + HW_CLKCTRL_CPU); - hclk.rate = 0; - } - } else if (clk == &cpu_clk && shift == 8) { - hbus_val = __raw_readl(REGS_CLKCTRL_BASE + - HW_CLKCTRL_HBUS); - cpu_val = __raw_readl(REGS_CLKCTRL_BASE + - HW_CLKCTRL_CPU); - hbus_val &= ~(BM_CLKCTRL_HBUS_DIV_FRAC_EN | - BM_CLKCTRL_HBUS_DIV); - hbus_val |= 2; - cpu_val &= ~BM_CLKCTRL_CPU_DIV_CPU; - if (clk->saved_div) - cpu_val |= clk->saved_div; - else - cpu_val |= 2; - - if (machine_is_stmp378x()) { - __raw_writel(hbus_val, - REGS_CLKCTRL_BASE + HW_CLKCTRL_HBUS); - __raw_writel(cpu_val, - REGS_CLKCTRL_BASE + HW_CLKCTRL_CPU); - hclk.rate = 0; - } - } -#endif - __raw_writel(1 << clk->bypass_shift, clk->bypass_reg + shift); - - ret = 0; - } - - return ret; -} - -static int hbus_set_rate(struct clk *clk, u32 rate) -{ - u8 div = 0; - int is_frac = 0; - u32 clkctrl_hbus; - struct clk *parent = clk->parent; - - pr_debug("%s: rate %d, parent rate %d\n", __func__, rate, - parent->rate); - - if (rate > parent->rate) - return -EINVAL; - - if (((parent->rate + rate/2) / rate) * rate != parent->rate && - parent->rate / rate < 32) { - pr_debug("%s: switching to fractional mode\n", __func__); - is_frac = 1; - } - - if (is_frac) - div = (32 * rate + parent->rate / 2) / parent->rate; - else - div = (parent->rate + rate - 1) / rate; - pr_debug("%s: div calculated is %d\n", __func__, div); - if (!div || div > 0x1f) - return -EINVAL; - - clk_set_parent(&cpu_clk, &osc_24M); - udelay(10); - clkctrl_hbus = __raw_readl(clk->scale_reg); - clkctrl_hbus &= ~0x3f; - clkctrl_hbus |= div; - clkctrl_hbus |= (is_frac << 5); - - __raw_writel(clkctrl_hbus, clk->scale_reg); - if (clk->busy_reg) { - int i; - for (i = 10000; i; i--) - if (!clk_is_busy(clk)) - break; - if (!i) { - printk(KERN_ERR "couldn't set up CPU divisor\n"); - return -ETIMEDOUT; - } - } - clk_set_parent(&cpu_clk, &pll_clk); - __raw_writel(clkctrl_hbus, clk->scale_reg); - udelay(10); - return 0; -} - -static long hbus_get_rate(struct clk *clk) -{ - long rate = clk->parent->rate; - - if (__raw_readl(clk->scale_reg) & 0x20) { - rate *= __raw_readl(clk->scale_reg) & 0x1f; - rate /= 32; - } else - rate /= __raw_readl(clk->scale_reg) & 0x1f; - clk->rate = rate; - - return rate; -} - -static int xbus_set_rate(struct clk *clk, u32 rate) -{ - u16 div = 0; - u32 clkctrl_xbus; - - pr_debug("%s: rate %d, parent rate %d\n", __func__, rate, - clk->parent->rate); - - div = (clk->parent->rate + rate - 1) / rate; - pr_debug("%s: div calculated is %d\n", __func__, div); - if (!div || div > 0x3ff) - return -EINVAL; - - clkctrl_xbus = __raw_readl(clk->scale_reg); - clkctrl_xbus &= ~0x3ff; - clkctrl_xbus |= div; - __raw_writel(clkctrl_xbus, clk->scale_reg); - if (clk->busy_reg) { - int i; - for (i = 10000; i; i--) - if (!clk_is_busy(clk)) - break; - if (!i) { - printk(KERN_ERR "couldn't set up xbus divisor\n"); - return -ETIMEDOUT; - } - } - return 0; -} - -static long xbus_get_rate(struct clk *clk) -{ - long rate = clk->parent->rate; - - rate /= __raw_readl(clk->scale_reg) & 0x3ff; - clk->rate = rate; - - return rate; -} - - -/* Clock ops */ - -static struct clk_ops std_ops = { - .enable = std_clk_enable, - .disable = std_clk_disable, - .get_rate = per_get_rate, - .set_rate = per_set_rate, - .set_parent = clkseq_set_parent, -}; - -static struct clk_ops min_ops = { - .enable = std_clk_enable, - .disable = std_clk_disable, -}; - -static struct clk_ops cpu_ops = { - .enable = std_clk_enable, - .disable = std_clk_disable, - .get_rate = cpu_get_rate, - .set_rate = cpu_set_rate, - .round_rate = cpu_round_rate, - .set_parent = clkseq_set_parent, -}; - -static struct clk_ops io_ops = { - .enable = std_clk_enable, - .disable = std_clk_disable, - .get_rate = io_get_rate, - .set_rate = io_set_rate, -}; - -static struct clk_ops hbus_ops = { - .get_rate = hbus_get_rate, - .set_rate = hbus_set_rate, -}; - -static struct clk_ops xbus_ops = { - .get_rate = xbus_get_rate, - .set_rate = xbus_set_rate, -}; - -static struct clk_ops lcdif_ops = { - .enable = std_clk_enable, - .disable = std_clk_disable, - .get_rate = lcdif_get_rate, - .set_rate = lcdif_set_rate, - .set_parent = clkseq_set_parent, -}; - -static struct clk_ops emi_ops = { - .get_rate = emi_get_rate, -}; - -/* List of on-chip clocks */ - -static struct clk osc_24M = { - .flags = FIXED_RATE | ENABLED, - .rate = 24000, -}; - -static struct clk pll_clk = { - .parent = &osc_24M, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_PLLCTRL0, - .enable_shift = 16, - .enable_wait = 10, - .flags = FIXED_RATE | ENABLED, - .rate = 480000, - .ops = &min_ops, -}; - -static struct clk cpu_clk = { - .parent = &pll_clk, - .scale_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_FRAC, - .scale_shift = 0, - .bypass_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_CLKSEQ, - .bypass_shift = 7, - .busy_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_CPU, - .busy_bit = 28, - .flags = RATE_PROPAGATES | ENABLED, - .ops = &cpu_ops, -}; - -static struct clk io_clk = { - .parent = &pll_clk, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_FRAC, - .enable_shift = 31, - .enable_negate = 1, - .scale_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_FRAC, - .scale_shift = 24, - .flags = RATE_PROPAGATES | ENABLED, - .ops = &io_ops, -}; - -static struct clk hclk = { - .parent = &cpu_clk, - .scale_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_HBUS, - .bypass_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_CLKSEQ, - .bypass_shift = 7, - .busy_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_HBUS, - .busy_bit = 29, - .flags = RATE_PROPAGATES | ENABLED, - .ops = &hbus_ops, -}; - -static struct clk xclk = { - .parent = &osc_24M, - .scale_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_XBUS, - .busy_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_XBUS, - .busy_bit = 31, - .flags = RATE_PROPAGATES | ENABLED, - .ops = &xbus_ops, -}; - -static struct clk uart_clk = { - .parent = &xclk, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_XTAL, - .enable_shift = 31, - .enable_negate = 1, - .flags = ENABLED, - .ops = &min_ops, -}; - -static struct clk audio_clk = { - .parent = &xclk, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_XTAL, - .enable_shift = 30, - .enable_negate = 1, - .ops = &min_ops, -}; - -static struct clk pwm_clk = { - .parent = &xclk, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_XTAL, - .enable_shift = 29, - .enable_negate = 1, - .ops = &min_ops, -}; - -static struct clk dri_clk = { - .parent = &xclk, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_XTAL, - .enable_shift = 28, - .enable_negate = 1, - .ops = &min_ops, -}; - -static struct clk digctl_clk = { - .parent = &xclk, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_XTAL, - .enable_shift = 27, - .enable_negate = 1, - .ops = &min_ops, -}; - -static struct clk timer_clk = { - .parent = &xclk, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_XTAL, - .enable_shift = 26, - .enable_negate = 1, - .flags = ENABLED, - .ops = &min_ops, -}; - -static struct clk lcdif_clk = { - .parent = &pll_clk, - .scale_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_PIX, - .busy_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_PIX, - .busy_bit = 29, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_PIX, - .enable_shift = 31, - .enable_negate = 1, - .bypass_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_CLKSEQ, - .bypass_shift = 1, - .flags = NEEDS_SET_PARENT, - .ops = &lcdif_ops, -}; - -static struct clk ssp_clk = { - .parent = &io_clk, - .scale_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_SSP, - .busy_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_SSP, - .busy_bit = 29, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_SSP, - .enable_shift = 31, - .bypass_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_CLKSEQ, - .bypass_shift = 5, - .enable_negate = 1, - .flags = NEEDS_SET_PARENT, - .ops = &std_ops, -}; - -static struct clk gpmi_clk = { - .parent = &io_clk, - .scale_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_GPMI, - .busy_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_GPMI, - .busy_bit = 29, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_GPMI, - .enable_shift = 31, - .enable_negate = 1, - .bypass_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_CLKSEQ, - .bypass_shift = 4, - .flags = NEEDS_SET_PARENT, - .ops = &std_ops, -}; - -static struct clk spdif_clk = { - .parent = &pll_clk, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_SPDIF, - .enable_shift = 31, - .enable_negate = 1, - .ops = &min_ops, -}; - -static struct clk emi_clk = { - .parent = &pll_clk, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_EMI, - .enable_shift = 31, - .enable_negate = 1, - .scale_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_FRAC, - .scale_shift = 8, - .busy_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_EMI, - .busy_bit = 28, - .bypass_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_CLKSEQ, - .bypass_shift = 6, - .flags = ENABLED, - .ops = &emi_ops, -}; - -static struct clk ir_clk = { - .parent = &io_clk, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_IR, - .enable_shift = 31, - .enable_negate = 1, - .bypass_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_CLKSEQ, - .bypass_shift = 3, - .ops = &min_ops, -}; - -static struct clk saif_clk = { - .parent = &pll_clk, - .scale_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_SAIF, - .busy_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_SAIF, - .busy_bit = 29, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_SAIF, - .enable_shift = 31, - .enable_negate = 1, - .bypass_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_CLKSEQ, - .bypass_shift = 0, - .ops = &std_ops, -}; - -static struct clk usb_clk = { - .parent = &pll_clk, - .enable_reg = REGS_CLKCTRL_BASE + HW_CLKCTRL_PLLCTRL0, - .enable_shift = 18, - .enable_negate = 1, - .ops = &min_ops, -}; - -/* list of all the clocks */ -static struct clk_lookup onchip_clks[] = { - { - .con_id = "osc_24M", - .clk = &osc_24M, - }, { - .con_id = "pll", - .clk = &pll_clk, - }, { - .con_id = "cpu", - .clk = &cpu_clk, - }, { - .con_id = "hclk", - .clk = &hclk, - }, { - .con_id = "xclk", - .clk = &xclk, - }, { - .con_id = "io", - .clk = &io_clk, - }, { - .con_id = "uart", - .clk = &uart_clk, - }, { - .con_id = "audio", - .clk = &audio_clk, - }, { - .con_id = "pwm", - .clk = &pwm_clk, - }, { - .con_id = "dri", - .clk = &dri_clk, - }, { - .con_id = "digctl", - .clk = &digctl_clk, - }, { - .con_id = "timer", - .clk = &timer_clk, - }, { - .con_id = "lcdif", - .clk = &lcdif_clk, - }, { - .con_id = "ssp", - .clk = &ssp_clk, - }, { - .con_id = "gpmi", - .clk = &gpmi_clk, - }, { - .con_id = "spdif", - .clk = &spdif_clk, - }, { - .con_id = "emi", - .clk = &emi_clk, - }, { - .con_id = "ir", - .clk = &ir_clk, - }, { - .con_id = "saif", - .clk = &saif_clk, - }, { - .con_id = "usb", - .clk = &usb_clk, - }, -}; - -static int __init propagate_rate(struct clk *clk) -{ - struct clk_lookup *cl; - - for (cl = onchip_clks; cl < onchip_clks + ARRAY_SIZE(onchip_clks); - cl++) { - if (unlikely(!clk_good(cl->clk))) - continue; - if (cl->clk->parent == clk && cl->clk->ops->get_rate) { - cl->clk->ops->get_rate(cl->clk); - if (cl->clk->flags & RATE_PROPAGATES) - propagate_rate(cl->clk); - } - } - - return 0; -} - -/* Exported API */ -unsigned long clk_get_rate(struct clk *clk) -{ - if (unlikely(!clk_good(clk))) - return 0; - - if (clk->rate != 0) - return clk->rate; - - if (clk->ops->get_rate != NULL) - return clk->ops->get_rate(clk); - - return clk_get_rate(clk->parent); -} -EXPORT_SYMBOL(clk_get_rate); - -long clk_round_rate(struct clk *clk, unsigned long rate) -{ - if (unlikely(!clk_good(clk))) - return 0; - - if (clk->ops->round_rate) - return clk->ops->round_rate(clk, rate); - - return 0; -} -EXPORT_SYMBOL(clk_round_rate); - -static inline int close_enough(long rate1, long rate2) -{ - return rate1 && !((rate2 - rate1) * 1000 / rate1); -} - -int clk_set_rate(struct clk *clk, unsigned long rate) -{ - int ret = -EINVAL; - - if (unlikely(!clk_good(clk))) - goto out; - - if (clk->flags & FIXED_RATE || !clk->ops->set_rate) - goto out; - - else if (!close_enough(clk->rate, rate)) { - ret = clk->ops->set_rate(clk, rate); - if (ret < 0) - goto out; - clk->rate = rate; - if (clk->flags & RATE_PROPAGATES) - propagate_rate(clk); - } else - ret = 0; - -out: - return ret; -} -EXPORT_SYMBOL(clk_set_rate); - -int clk_enable(struct clk *clk) -{ - unsigned long clocks_flags; - - if (unlikely(!clk_good(clk))) - return -EINVAL; - - if (clk->parent) - clk_enable(clk->parent); - - spin_lock_irqsave(&clocks_lock, clocks_flags); - - clk->usage++; - if (clk->ops && clk->ops->enable) - clk->ops->enable(clk); - - spin_unlock_irqrestore(&clocks_lock, clocks_flags); - return 0; -} -EXPORT_SYMBOL(clk_enable); - -static void local_clk_disable(struct clk *clk) -{ - if (unlikely(!clk_good(clk))) - return; - - if (clk->usage == 0 && clk->ops->disable) - clk->ops->disable(clk); - - if (clk->parent) - local_clk_disable(clk->parent); -} - -void clk_disable(struct clk *clk) -{ - unsigned long clocks_flags; - - if (unlikely(!clk_good(clk))) - return; - - spin_lock_irqsave(&clocks_lock, clocks_flags); - - if ((--clk->usage) == 0 && clk->ops->disable) - clk->ops->disable(clk); - - spin_unlock_irqrestore(&clocks_lock, clocks_flags); - if (clk->parent) - clk_disable(clk->parent); -} -EXPORT_SYMBOL(clk_disable); - -/* Some additional API */ -int clk_set_parent(struct clk *clk, struct clk *parent) -{ - int ret = -ENODEV; - unsigned long clocks_flags; - - if (unlikely(!clk_good(clk))) - goto out; - - if (!clk->ops->set_parent) - goto out; - - spin_lock_irqsave(&clocks_lock, clocks_flags); - - ret = clk->ops->set_parent(clk, parent); - if (!ret) { - /* disable if usage count is 0 */ - local_clk_disable(parent); - - parent->usage += clk->usage; - clk->parent->usage -= clk->usage; - - /* disable if new usage count is 0 */ - local_clk_disable(clk->parent); - - clk->parent = parent; - } - spin_unlock_irqrestore(&clocks_lock, clocks_flags); - -out: - return ret; -} -EXPORT_SYMBOL(clk_set_parent); - -struct clk *clk_get_parent(struct clk *clk) -{ - if (unlikely(!clk_good(clk))) - return NULL; - return clk->parent; -} -EXPORT_SYMBOL(clk_get_parent); - -static int __init clk_init(void) -{ - struct clk_lookup *cl; - struct clk_ops *ops; - - spin_lock_init(&clocks_lock); - - for (cl = onchip_clks; cl < onchip_clks + ARRAY_SIZE(onchip_clks); - cl++) { - if (cl->clk->flags & ENABLED) - clk_enable(cl->clk); - else - local_clk_disable(cl->clk); - - ops = cl->clk->ops; - - if ((cl->clk->flags & NEEDS_INITIALIZATION) && - ops && ops->set_rate) - ops->set_rate(cl->clk, cl->clk->rate); - - if (cl->clk->flags & FIXED_RATE) { - if (cl->clk->flags & RATE_PROPAGATES) - propagate_rate(cl->clk); - } else { - if (ops && ops->get_rate) - ops->get_rate(cl->clk); - } - - if (cl->clk->flags & NEEDS_SET_PARENT) { - if (ops && ops->set_parent) - ops->set_parent(cl->clk, cl->clk->parent); - } - } - clkdev_add_table(onchip_clks, ARRAY_SIZE(onchip_clks)); - return 0; -} - -arch_initcall(clk_init); diff --git a/arch/arm/plat-stmp3xxx/clock.h b/arch/arm/plat-stmp3xxx/clock.h deleted file mode 100644 index a6611e1a3510..000000000000 --- a/arch/arm/plat-stmp3xxx/clock.h +++ /dev/null @@ -1,61 +0,0 @@ -/* - * Clock control driver for Freescale STMP37XX/STMP378X - internal header file - * - * Author: Vitaly Wool <vital@embeddedalley.com> - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#ifndef __ARCH_ARM_STMX3XXX_CLOCK_H__ -#define __ARCH_ARM_STMX3XXX_CLOCK_H__ - -#ifndef __ASSEMBLER__ - -struct clk_ops { - int (*enable) (struct clk *); - int (*disable) (struct clk *); - long (*get_rate) (struct clk *); - long (*round_rate) (struct clk *, u32); - int (*set_rate) (struct clk *, u32); - int (*set_parent) (struct clk *, struct clk *); -}; - -struct clk { - struct clk *parent; - u32 rate; - u32 flags; - u8 scale_shift; - u8 enable_shift; - u8 bypass_shift; - u8 busy_bit; - s8 usage; - int enable_wait; - int enable_negate; - u32 saved_div; - void __iomem *enable_reg; - void __iomem *scale_reg; - void __iomem *bypass_reg; - void __iomem *busy_reg; - struct clk_ops *ops; -}; - -#endif /* __ASSEMBLER__ */ - -/* Flags */ -#define RATE_PROPAGATES (1<<0) -#define NEEDS_INITIALIZATION (1<<1) -#define PARENT_SET_RATE (1<<2) -#define FIXED_RATE (1<<3) -#define ENABLED (1<<4) -#define NEEDS_SET_PARENT (1<<5) - -#endif diff --git a/arch/arm/plat-stmp3xxx/core.c b/arch/arm/plat-stmp3xxx/core.c deleted file mode 100644 index 37b8a09148a4..000000000000 --- a/arch/arm/plat-stmp3xxx/core.c +++ /dev/null @@ -1,128 +0,0 @@ -/* - * Freescale STMP37XX/STMP378X core routines - * - * Embedded Alley Solutions, Inc <source@embeddedalley.com> - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/io.h> - -#include <mach/stmp3xxx.h> -#include <mach/platform.h> -#include <mach/dma.h> -#include <mach/regs-clkctrl.h> - -static int __stmp3xxx_reset_block(void __iomem *hwreg, int just_enable) -{ - u32 c; - int timeout; - - /* the process of software reset of IP block is done - in several steps: - - - clear SFTRST and wait for block is enabled; - - clear clock gating (CLKGATE bit); - - set the SFTRST again and wait for block is in reset; - - clear SFTRST and wait for reset completion. - */ - c = __raw_readl(hwreg); - c &= ~(1<<31); /* clear SFTRST */ - __raw_writel(c, hwreg); - for (timeout = 1000000; timeout > 0; timeout--) - /* still in SFTRST state ? */ - if ((__raw_readl(hwreg) & (1<<31)) == 0) - break; - if (timeout <= 0) { - printk(KERN_ERR"%s(%p): timeout when enabling\n", - __func__, hwreg); - return -ETIME; - } - - c = __raw_readl(hwreg); - c &= ~(1<<30); /* clear CLKGATE */ - __raw_writel(c, hwreg); - - if (!just_enable) { - c = __raw_readl(hwreg); - c |= (1<<31); /* now again set SFTRST */ - __raw_writel(c, hwreg); - for (timeout = 1000000; timeout > 0; timeout--) - /* poll until CLKGATE set */ - if (__raw_readl(hwreg) & (1<<30)) - break; - if (timeout <= 0) { - printk(KERN_ERR"%s(%p): timeout when resetting\n", - __func__, hwreg); - return -ETIME; - } - - c = __raw_readl(hwreg); - c &= ~(1<<31); /* clear SFTRST */ - __raw_writel(c, hwreg); - for (timeout = 1000000; timeout > 0; timeout--) - /* still in SFTRST state ? */ - if ((__raw_readl(hwreg) & (1<<31)) == 0) - break; - if (timeout <= 0) { - printk(KERN_ERR"%s(%p): timeout when enabling " - "after reset\n", __func__, hwreg); - return -ETIME; - } - - c = __raw_readl(hwreg); - c &= ~(1<<30); /* clear CLKGATE */ - __raw_writel(c, hwreg); - } - for (timeout = 1000000; timeout > 0; timeout--) - /* still in SFTRST state ? */ - if ((__raw_readl(hwreg) & (1<<30)) == 0) - break; - - if (timeout <= 0) { - printk(KERN_ERR"%s(%p): timeout when unclockgating\n", - __func__, hwreg); - return -ETIME; - } - - return 0; -} - -int stmp3xxx_reset_block(void __iomem *hwreg, int just_enable) -{ - int try = 10; - int r; - - while (try--) { - r = __stmp3xxx_reset_block(hwreg, just_enable); - if (!r) - break; - pr_debug("%s: try %d failed\n", __func__, 10 - try); - } - return r; -} -EXPORT_SYMBOL(stmp3xxx_reset_block); - -struct platform_device stmp3xxx_dbguart = { - .name = "stmp3xxx-dbguart", - .id = -1, -}; - -void __init stmp3xxx_init(void) -{ - /* Turn off auto-slow and other tricks */ - stmp3xxx_clearl(0x7f00000, REGS_CLKCTRL_BASE + HW_CLKCTRL_HBUS); - - stmp3xxx_dma_init(); -} diff --git a/arch/arm/plat-stmp3xxx/devices.c b/arch/arm/plat-stmp3xxx/devices.c deleted file mode 100644 index 68fed4b8746a..000000000000 --- a/arch/arm/plat-stmp3xxx/devices.c +++ /dev/null @@ -1,389 +0,0 @@ -/* -* Freescale STMP37XX/STMP378X platform devices -* -* Embedded Alley Solutions, Inc <source@embeddedalley.com> -* -* Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. -* Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. -*/ - -/* -* The code contained herein is licensed under the GNU General Public -* License. You may obtain a copy of the GNU General Public License -* Version 2 or later at the following locations: -* -* http://www.opensource.org/licenses/gpl-license.html -* http://www.gnu.org/copyleft/gpl.html -*/ -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/device.h> -#include <linux/platform_device.h> -#include <linux/dma-mapping.h> - -#include <mach/dma.h> -#include <mach/platform.h> -#include <mach/stmp3xxx.h> -#include <mach/regs-lcdif.h> -#include <mach/regs-uartapp.h> -#include <mach/regs-gpmi.h> -#include <mach/regs-usbctrl.h> -#include <mach/regs-ssp.h> -#include <mach/regs-rtc.h> - -static u64 common_dmamask = DMA_BIT_MASK(32); - -static struct resource appuart_resources[] = { - { - .start = IRQ_UARTAPP_INTERNAL, - .end = IRQ_UARTAPP_INTERNAL, - .flags = IORESOURCE_IRQ, - }, { - .start = IRQ_UARTAPP_RX_DMA, - .end = IRQ_UARTAPP_RX_DMA, - .flags = IORESOURCE_IRQ, - }, { - .start = IRQ_UARTAPP_TX_DMA, - .end = IRQ_UARTAPP_TX_DMA, - .flags = IORESOURCE_IRQ, - }, { - .start = REGS_UARTAPP1_PHYS, - .end = REGS_UARTAPP1_PHYS + REGS_UARTAPP_SIZE, - .flags = IORESOURCE_MEM, - }, { - /* Rx DMA channel */ - .start = STMP3XXX_DMA(6, STMP3XXX_BUS_APBX), - .end = STMP3XXX_DMA(6, STMP3XXX_BUS_APBX), - .flags = IORESOURCE_DMA, - }, { - /* Tx DMA channel */ - .start = STMP3XXX_DMA(7, STMP3XXX_BUS_APBX), - .end = STMP3XXX_DMA(7, STMP3XXX_BUS_APBX), - .flags = IORESOURCE_DMA, - }, -}; - -struct platform_device stmp3xxx_appuart = { - .name = "stmp3xxx-appuart", - .id = 0, - .resource = appuart_resources, - .num_resources = ARRAY_SIZE(appuart_resources), - .dev = { - .dma_mask = &common_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, -}; - -struct platform_device stmp3xxx_watchdog = { - .name = "stmp3xxx_wdt", - .id = -1, -}; - -static struct resource ts_resource[] = { - { - .flags = IORESOURCE_IRQ, - .start = IRQ_TOUCH_DETECT, - .end = IRQ_TOUCH_DETECT, - }, { - .flags = IORESOURCE_IRQ, - .start = IRQ_LRADC_CH5, - .end = IRQ_LRADC_CH5, - }, -}; - -struct platform_device stmp3xxx_touchscreen = { - .name = "stmp3xxx_ts", - .id = -1, - .resource = ts_resource, - .num_resources = ARRAY_SIZE(ts_resource), -}; - -/* -* Keypad device -*/ -struct platform_device stmp3xxx_keyboard = { - .name = "stmp3xxx-keyboard", - .id = -1, -}; - -static struct resource gpmi_resources[] = { - { - .flags = IORESOURCE_MEM, - .start = REGS_GPMI_PHYS, - .end = REGS_GPMI_PHYS + REGS_GPMI_SIZE, - }, { - .flags = IORESOURCE_IRQ, - .start = IRQ_GPMI_DMA, - .end = IRQ_GPMI_DMA, - }, { - .flags = IORESOURCE_DMA, - .start = STMP3XXX_DMA(4, STMP3XXX_BUS_APBH), - .end = STMP3XXX_DMA(8, STMP3XXX_BUS_APBH), - }, -}; - -struct platform_device stmp3xxx_gpmi = { - .name = "gpmi", - .id = -1, - .dev = { - .dma_mask = &common_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .resource = gpmi_resources, - .num_resources = ARRAY_SIZE(gpmi_resources), -}; - -static struct resource mmc1_resource[] = { - { - .flags = IORESOURCE_MEM, - .start = REGS_SSP1_PHYS, - .end = REGS_SSP1_PHYS + REGS_SSP_SIZE, - }, { - .flags = IORESOURCE_DMA, - .start = STMP3XXX_DMA(1, STMP3XXX_BUS_APBH), - .end = STMP3XXX_DMA(1, STMP3XXX_BUS_APBH), - }, { - .flags = IORESOURCE_IRQ, - .start = IRQ_SSP1_DMA, - .end = IRQ_SSP1_DMA, - }, { - .flags = IORESOURCE_IRQ, - .start = IRQ_SSP_ERROR, - .end = IRQ_SSP_ERROR, - }, -}; - -struct platform_device stmp3xxx_mmc = { - .name = "stmp3xxx-mmc", - .id = 1, - .dev = { - .dma_mask = &common_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .resource = mmc1_resource, - .num_resources = ARRAY_SIZE(mmc1_resource), -}; - -static struct resource usb_resources[] = { - { - .start = REGS_USBCTRL_PHYS, - .end = REGS_USBCTRL_PHYS + SZ_4K, - .flags = IORESOURCE_MEM, - }, { - .start = IRQ_USB_CTRL, - .end = IRQ_USB_CTRL, - .flags = IORESOURCE_IRQ, - }, -}; - -struct platform_device stmp3xxx_udc = { - .name = "fsl-usb2-udc", - .id = -1, - .dev = { - .dma_mask = &common_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .resource = usb_resources, - .num_resources = ARRAY_SIZE(usb_resources), -}; - -struct platform_device stmp3xxx_ehci = { - .name = "fsl-ehci", - .id = -1, - .dev = { - .dma_mask = &common_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .resource = usb_resources, - .num_resources = ARRAY_SIZE(usb_resources), -}; - -static struct resource rtc_resources[] = { - { - .start = REGS_RTC_PHYS, - .end = REGS_RTC_PHYS + REGS_RTC_SIZE, - .flags = IORESOURCE_MEM, - }, { - .start = IRQ_RTC_ALARM, - .end = IRQ_RTC_ALARM, - .flags = IORESOURCE_IRQ, - }, { - .start = IRQ_RTC_1MSEC, - .end = IRQ_RTC_1MSEC, - .flags = IORESOURCE_IRQ, - }, -}; - -struct platform_device stmp3xxx_rtc = { - .name = "stmp3xxx-rtc", - .id = -1, - .resource = rtc_resources, - .num_resources = ARRAY_SIZE(rtc_resources), -}; - -static struct resource ssp1_resources[] = { - { - .start = REGS_SSP1_PHYS, - .end = REGS_SSP1_PHYS + REGS_SSP_SIZE, - .flags = IORESOURCE_MEM, - }, { - .start = IRQ_SSP1_DMA, - .end = IRQ_SSP1_DMA, - .flags = IORESOURCE_IRQ, - }, { - .start = STMP3XXX_DMA(1, STMP3XXX_BUS_APBH), - .end = STMP3XXX_DMA(1, STMP3XXX_BUS_APBH), - .flags = IORESOURCE_DMA, - }, -}; - -static struct resource ssp2_resources[] = { - { - .start = REGS_SSP2_PHYS, - .end = REGS_SSP2_PHYS + REGS_SSP_SIZE, - .flags = IORESOURCE_MEM, - }, { - .start = IRQ_SSP2_DMA, - .end = IRQ_SSP2_DMA, - .flags = IORESOURCE_IRQ, - }, { - .start = STMP3XXX_DMA(2, STMP3XXX_BUS_APBH), - .end = STMP3XXX_DMA(2, STMP3XXX_BUS_APBH), - .flags = IORESOURCE_DMA, - }, -}; - -struct platform_device stmp3xxx_spi1 = { - .name = "stmp3xxx_ssp", - .id = 1, - .dev = { - .dma_mask = &common_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .resource = ssp1_resources, - .num_resources = ARRAY_SIZE(ssp1_resources), -}; - -struct platform_device stmp3xxx_spi2 = { - .name = "stmp3xxx_ssp", - .id = 2, - .dev = { - .dma_mask = &common_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .resource = ssp2_resources, - .num_resources = ARRAY_SIZE(ssp2_resources), -}; - -static struct resource fb_resource[] = { - { - .flags = IORESOURCE_IRQ, - .start = IRQ_LCDIF_DMA, - .end = IRQ_LCDIF_DMA, - }, { - .flags = IORESOURCE_IRQ, - .start = IRQ_LCDIF_ERROR, - .end = IRQ_LCDIF_ERROR, - }, { - .flags = IORESOURCE_MEM, - .start = REGS_LCDIF_PHYS, - .end = REGS_LCDIF_PHYS + REGS_LCDIF_SIZE, - }, -}; - -struct platform_device stmp3xxx_framebuffer = { - .name = "stmp3xxx-fb", - .id = -1, - .dev = { - .dma_mask = &common_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, - .num_resources = ARRAY_SIZE(fb_resource), - .resource = fb_resource, -}; - -#define CMDLINE_DEVICE_CHOOSE(name, dev1, dev2) \ - static char *cmdline_device_##name; \ - static int cmdline_device_##name##_setup(char *dev) \ - { \ - cmdline_device_##name = dev + 1; \ - return 0; \ - } \ - __setup(#name, cmdline_device_##name##_setup); \ - int stmp3xxx_##name##_device_register(void) \ - { \ - struct platform_device *d = NULL; \ - if (!cmdline_device_##name || \ - !strcmp(cmdline_device_##name, #dev1)) \ - d = &stmp3xxx_##dev1; \ - else if (!strcmp(cmdline_device_##name, #dev2)) \ - d = &stmp3xxx_##dev2; \ - else \ - printk(KERN_ERR"Unknown %s assignment '%s'.\n", \ - #name, cmdline_device_##name); \ - return d ? platform_device_register(d) : -ENOENT; \ - } - -CMDLINE_DEVICE_CHOOSE(ssp1, mmc, spi1) -CMDLINE_DEVICE_CHOOSE(ssp2, gpmi, spi2) - -struct platform_device stmp3xxx_backlight = { - .name = "stmp3xxx-bl", - .id = -1, -}; - -struct platform_device stmp3xxx_rotdec = { - .name = "stmp3xxx-rotdec", - .id = -1, -}; - -struct platform_device stmp3xxx_persistent = { - .name = "stmp3xxx-persistent", - .id = -1, -}; - -struct platform_device stmp3xxx_dcp_bootstream = { - .name = "stmp3xxx-dcpboot", - .id = -1, - .dev = { - .dma_mask = &common_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, -}; - -static struct resource dcp_resources[] = { - { - .start = IRQ_DCP_VMI, - .end = IRQ_DCP_VMI, - .flags = IORESOURCE_IRQ, - }, { - .start = IRQ_DCP, - .end = IRQ_DCP, - .flags = IORESOURCE_IRQ, - }, -}; - -struct platform_device stmp3xxx_dcp = { - .name = "stmp3xxx-dcp", - .id = -1, - .resource = dcp_resources, - .num_resources = ARRAY_SIZE(dcp_resources), - .dev = { - .dma_mask = &common_dmamask, - .coherent_dma_mask = DMA_BIT_MASK(32), - }, -}; - -static struct resource battery_resource[] = { - { - .flags = IORESOURCE_IRQ, - .start = IRQ_VDD5V, - .end = IRQ_VDD5V, - }, -}; - -struct platform_device stmp3xxx_battery = { - .name = "stmp3xxx-battery", - .resource = battery_resource, - .num_resources = ARRAY_SIZE(battery_resource), -}; diff --git a/arch/arm/plat-stmp3xxx/dma.c b/arch/arm/plat-stmp3xxx/dma.c deleted file mode 100644 index b4dcf8c0477d..000000000000 --- a/arch/arm/plat-stmp3xxx/dma.c +++ /dev/null @@ -1,464 +0,0 @@ -/* - * DMA helper routines for Freescale STMP37XX/STMP378X - * - * Author: dmitry pervushin <dpervushin@embeddedalley.com> - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#include <linux/gfp.h> -#include <linux/kernel.h> -#include <linux/device.h> -#include <linux/dmapool.h> -#include <linux/sysdev.h> -#include <linux/cpufreq.h> - -#include <asm/page.h> - -#include <mach/platform.h> -#include <mach/dma.h> -#include <mach/regs-apbx.h> -#include <mach/regs-apbh.h> - -static const size_t pool_item_size = sizeof(struct stmp3xxx_dma_command); -static const size_t pool_alignment = 8; -static struct stmp3xxx_dma_user { - void *pool; - int inuse; - const char *name; -} channels[MAX_DMA_CHANNELS]; - -#define IS_VALID_CHANNEL(ch) ((ch) >= 0 && (ch) < MAX_DMA_CHANNELS) -#define IS_USED(ch) (channels[ch].inuse) - -int stmp3xxx_dma_request(int ch, struct device *dev, const char *name) -{ - struct stmp3xxx_dma_user *user; - int err = 0; - - user = channels + ch; - if (!IS_VALID_CHANNEL(ch)) { - err = -ENODEV; - goto out; - } - if (IS_USED(ch)) { - err = -EBUSY; - goto out; - } - /* Create a pool to allocate dma commands from */ - user->pool = dma_pool_create(name, dev, pool_item_size, - pool_alignment, PAGE_SIZE); - if (user->pool == NULL) { - err = -ENOMEM; - goto out; - } - user->name = name; - user->inuse++; -out: - return err; -} -EXPORT_SYMBOL(stmp3xxx_dma_request); - -int stmp3xxx_dma_release(int ch) -{ - struct stmp3xxx_dma_user *user = channels + ch; - int err = 0; - - if (!IS_VALID_CHANNEL(ch)) { - err = -ENODEV; - goto out; - } - if (!IS_USED(ch)) { - err = -EBUSY; - goto out; - } - BUG_ON(user->pool == NULL); - dma_pool_destroy(user->pool); - user->inuse--; -out: - return err; -} -EXPORT_SYMBOL(stmp3xxx_dma_release); - -int stmp3xxx_dma_read_semaphore(int channel) -{ - int sem = -1; - - switch (STMP3XXX_DMA_BUS(channel)) { - case STMP3XXX_BUS_APBH: - sem = __raw_readl(REGS_APBH_BASE + HW_APBH_CHn_SEMA + - STMP3XXX_DMA_CHANNEL(channel) * 0x70); - sem &= BM_APBH_CHn_SEMA_PHORE; - sem >>= BP_APBH_CHn_SEMA_PHORE; - break; - - case STMP3XXX_BUS_APBX: - sem = __raw_readl(REGS_APBX_BASE + HW_APBX_CHn_SEMA + - STMP3XXX_DMA_CHANNEL(channel) * 0x70); - sem &= BM_APBX_CHn_SEMA_PHORE; - sem >>= BP_APBX_CHn_SEMA_PHORE; - break; - default: - BUG(); - } - return sem; -} -EXPORT_SYMBOL(stmp3xxx_dma_read_semaphore); - -int stmp3xxx_dma_allocate_command(int channel, - struct stmp3xxx_dma_descriptor *descriptor) -{ - struct stmp3xxx_dma_user *user = channels + channel; - int err = 0; - - if (!IS_VALID_CHANNEL(channel)) { - err = -ENODEV; - goto out; - } - if (!IS_USED(channel)) { - err = -EBUSY; - goto out; - } - if (descriptor == NULL) { - err = -EINVAL; - goto out; - } - - /* Allocate memory for a command from the buffer */ - descriptor->command = - dma_pool_alloc(user->pool, GFP_KERNEL, &descriptor->handle); - - /* Check it worked */ - if (!descriptor->command) { - err = -ENOMEM; - goto out; - } - - memset(descriptor->command, 0, pool_item_size); -out: - WARN_ON(err); - return err; -} -EXPORT_SYMBOL(stmp3xxx_dma_allocate_command); - -int stmp3xxx_dma_free_command(int channel, - struct stmp3xxx_dma_descriptor *descriptor) -{ - int err = 0; - - if (!IS_VALID_CHANNEL(channel)) { - err = -ENODEV; - goto out; - } - if (!IS_USED(channel)) { - err = -EBUSY; - goto out; - } - - /* Return the command memory to the pool */ - dma_pool_free(channels[channel].pool, descriptor->command, - descriptor->handle); - - /* Initialise descriptor so we're not tempted to use it */ - descriptor->command = NULL; - descriptor->handle = 0; - descriptor->virtual_buf_ptr = NULL; - descriptor->next_descr = NULL; - - WARN_ON(err); -out: - return err; -} -EXPORT_SYMBOL(stmp3xxx_dma_free_command); - -void stmp3xxx_dma_go(int channel, - struct stmp3xxx_dma_descriptor *head, u32 semaphore) -{ - int ch = STMP3XXX_DMA_CHANNEL(channel); - void __iomem *c, *s; - - switch (STMP3XXX_DMA_BUS(channel)) { - case STMP3XXX_BUS_APBH: - c = REGS_APBH_BASE + HW_APBH_CHn_NXTCMDAR + 0x70 * ch; - s = REGS_APBH_BASE + HW_APBH_CHn_SEMA + 0x70 * ch; - break; - - case STMP3XXX_BUS_APBX: - c = REGS_APBX_BASE + HW_APBX_CHn_NXTCMDAR + 0x70 * ch; - s = REGS_APBX_BASE + HW_APBX_CHn_SEMA + 0x70 * ch; - break; - - default: - return; - } - - /* Set next command */ - __raw_writel(head->handle, c); - /* Set counting semaphore (kicks off transfer). Assumes - peripheral has been set up correctly */ - __raw_writel(semaphore, s); -} -EXPORT_SYMBOL(stmp3xxx_dma_go); - -int stmp3xxx_dma_running(int channel) -{ - switch (STMP3XXX_DMA_BUS(channel)) { - case STMP3XXX_BUS_APBH: - return (__raw_readl(REGS_APBH_BASE + HW_APBH_CHn_SEMA + - 0x70 * STMP3XXX_DMA_CHANNEL(channel))) & - BM_APBH_CHn_SEMA_PHORE; - - case STMP3XXX_BUS_APBX: - return (__raw_readl(REGS_APBX_BASE + HW_APBX_CHn_SEMA + - 0x70 * STMP3XXX_DMA_CHANNEL(channel))) & - BM_APBX_CHn_SEMA_PHORE; - default: - BUG(); - return 0; - } -} -EXPORT_SYMBOL(stmp3xxx_dma_running); - -/* - * Circular dma chain management - */ -void stmp3xxx_dma_free_chain(struct stmp37xx_circ_dma_chain *chain) -{ - int i; - - for (i = 0; i < chain->total_count; i++) - stmp3xxx_dma_free_command( - STMP3XXX_DMA(chain->channel, chain->bus), - &chain->chain[i]); -} -EXPORT_SYMBOL(stmp3xxx_dma_free_chain); - -int stmp3xxx_dma_make_chain(int ch, struct stmp37xx_circ_dma_chain *chain, - struct stmp3xxx_dma_descriptor descriptors[], - unsigned items) -{ - int i; - int err = 0; - - if (items == 0) - return err; - - for (i = 0; i < items; i++) { - err = stmp3xxx_dma_allocate_command(ch, &descriptors[i]); - if (err) { - WARN_ON(err); - /* - * Couldn't allocate the whole chain. - * deallocate what has been allocated - */ - if (i) { - do { - stmp3xxx_dma_free_command(ch, - &descriptors - [i]); - } while (i-- > 0); - } - return err; - } - - /* link them! */ - if (i > 0) { - descriptors[i - 1].next_descr = &descriptors[i]; - descriptors[i - 1].command->next = - descriptors[i].handle; - } - } - - /* make list circular */ - descriptors[items - 1].next_descr = &descriptors[0]; - descriptors[items - 1].command->next = descriptors[0].handle; - - chain->total_count = items; - chain->chain = descriptors; - chain->free_index = 0; - chain->active_index = 0; - chain->cooked_index = 0; - chain->free_count = items; - chain->active_count = 0; - chain->cooked_count = 0; - chain->bus = STMP3XXX_DMA_BUS(ch); - chain->channel = STMP3XXX_DMA_CHANNEL(ch); - return err; -} -EXPORT_SYMBOL(stmp3xxx_dma_make_chain); - -void stmp37xx_circ_clear_chain(struct stmp37xx_circ_dma_chain *chain) -{ - BUG_ON(stmp3xxx_dma_running(STMP3XXX_DMA(chain->channel, chain->bus))); - chain->free_index = 0; - chain->active_index = 0; - chain->cooked_index = 0; - chain->free_count = chain->total_count; - chain->active_count = 0; - chain->cooked_count = 0; -} -EXPORT_SYMBOL(stmp37xx_circ_clear_chain); - -void stmp37xx_circ_advance_free(struct stmp37xx_circ_dma_chain *chain, - unsigned count) -{ - BUG_ON(chain->cooked_count < count); - - chain->cooked_count -= count; - chain->cooked_index += count; - chain->cooked_index %= chain->total_count; - chain->free_count += count; -} -EXPORT_SYMBOL(stmp37xx_circ_advance_free); - -void stmp37xx_circ_advance_active(struct stmp37xx_circ_dma_chain *chain, - unsigned count) -{ - void __iomem *c; - u32 mask_clr, mask; - BUG_ON(chain->free_count < count); - - chain->free_count -= count; - chain->free_index += count; - chain->free_index %= chain->total_count; - chain->active_count += count; - - switch (chain->bus) { - case STMP3XXX_BUS_APBH: - c = REGS_APBH_BASE + HW_APBH_CHn_SEMA + 0x70 * chain->channel; - mask_clr = BM_APBH_CHn_SEMA_INCREMENT_SEMA; - mask = BF(count, APBH_CHn_SEMA_INCREMENT_SEMA); - break; - case STMP3XXX_BUS_APBX: - c = REGS_APBX_BASE + HW_APBX_CHn_SEMA + 0x70 * chain->channel; - mask_clr = BM_APBX_CHn_SEMA_INCREMENT_SEMA; - mask = BF(count, APBX_CHn_SEMA_INCREMENT_SEMA); - break; - default: - BUG(); - return; - } - - /* Set counting semaphore (kicks off transfer). Assumes - peripheral has been set up correctly */ - stmp3xxx_clearl(mask_clr, c); - stmp3xxx_setl(mask, c); -} -EXPORT_SYMBOL(stmp37xx_circ_advance_active); - -unsigned stmp37xx_circ_advance_cooked(struct stmp37xx_circ_dma_chain *chain) -{ - unsigned cooked; - - cooked = chain->active_count - - stmp3xxx_dma_read_semaphore(STMP3XXX_DMA(chain->channel, chain->bus)); - - chain->active_count -= cooked; - chain->active_index += cooked; - chain->active_index %= chain->total_count; - - chain->cooked_count += cooked; - - return cooked; -} -EXPORT_SYMBOL(stmp37xx_circ_advance_cooked); - -void stmp3xxx_dma_set_alt_target(int channel, int function) -{ -#if defined(CONFIG_ARCH_STMP37XX) - unsigned bits = 4; -#elif defined(CONFIG_ARCH_STMP378X) - unsigned bits = 2; -#else -#error wrong arch -#endif - int shift = STMP3XXX_DMA_CHANNEL(channel) * bits; - unsigned mask = (1<<bits) - 1; - void __iomem *c; - - BUG_ON(function < 0 || function >= (1<<bits)); - pr_debug("%s: channel = %d, using mask %x, " - "shift = %d\n", __func__, channel, mask, shift); - - switch (STMP3XXX_DMA_BUS(channel)) { - case STMP3XXX_BUS_APBH: - c = REGS_APBH_BASE + HW_APBH_DEVSEL; - break; - case STMP3XXX_BUS_APBX: - c = REGS_APBX_BASE + HW_APBX_DEVSEL; - break; - default: - BUG(); - } - stmp3xxx_clearl(mask << shift, c); - stmp3xxx_setl(mask << shift, c); -} -EXPORT_SYMBOL(stmp3xxx_dma_set_alt_target); - -void stmp3xxx_dma_suspend(void) -{ - stmp3xxx_setl(BM_APBH_CTRL0_CLKGATE, REGS_APBH_BASE + HW_APBH_CTRL0); - stmp3xxx_setl(BM_APBX_CTRL0_CLKGATE, REGS_APBX_BASE + HW_APBX_CTRL0); -} - -void stmp3xxx_dma_resume(void) -{ - stmp3xxx_clearl(BM_APBH_CTRL0_CLKGATE | BM_APBH_CTRL0_SFTRST, - REGS_APBH_BASE + HW_APBH_CTRL0); - stmp3xxx_clearl(BM_APBX_CTRL0_CLKGATE | BM_APBX_CTRL0_SFTRST, - REGS_APBX_BASE + HW_APBX_CTRL0); -} - -#ifdef CONFIG_CPU_FREQ - -struct dma_notifier_block { - struct notifier_block nb; - void *data; -}; - -static int dma_cpufreq_notifier(struct notifier_block *self, - unsigned long phase, void *p) -{ - switch (phase) { - case CPUFREQ_POSTCHANGE: - stmp3xxx_dma_resume(); - break; - - case CPUFREQ_PRECHANGE: - stmp3xxx_dma_suspend(); - break; - - default: - break; - } - - return NOTIFY_DONE; -} - -static struct dma_notifier_block dma_cpufreq_nb = { - .nb = { - .notifier_call = dma_cpufreq_notifier, - }, -}; -#endif /* CONFIG_CPU_FREQ */ - -void __init stmp3xxx_dma_init(void) -{ - stmp3xxx_clearl(BM_APBH_CTRL0_CLKGATE | BM_APBH_CTRL0_SFTRST, - REGS_APBH_BASE + HW_APBH_CTRL0); - stmp3xxx_clearl(BM_APBX_CTRL0_CLKGATE | BM_APBX_CTRL0_SFTRST, - REGS_APBX_BASE + HW_APBX_CTRL0); -#ifdef CONFIG_CPU_FREQ - cpufreq_register_notifier(&dma_cpufreq_nb.nb, - CPUFREQ_TRANSITION_NOTIFIER); -#endif /* CONFIG_CPU_FREQ */ -} diff --git a/arch/arm/plat-stmp3xxx/include/mach/clkdev.h b/arch/arm/plat-stmp3xxx/include/mach/clkdev.h deleted file mode 100644 index f9c39772d7c5..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/clkdev.h +++ /dev/null @@ -1,18 +0,0 @@ -/* - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - * - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#ifndef __ASM_MACH_CLKDEV_H -#define __ASM_MACH_CLKDEV_H - -#define __clk_get(clk) ({ 1; }) -#define __clk_put(clk) do { } while (0) - -#endif diff --git a/arch/arm/plat-stmp3xxx/include/mach/cputype.h b/arch/arm/plat-stmp3xxx/include/mach/cputype.h deleted file mode 100644 index b4e205b95f2c..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/cputype.h +++ /dev/null @@ -1,33 +0,0 @@ -/* - * Freescale STMP37XX/STMP378X CPU type detection - * - * Embedded Alley Solutions, Inc <source@embeddedalley.com> - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#ifndef __ASM_PLAT_CPU_H -#define __ASM_PLAT_CPU_H - -#ifdef CONFIG_ARCH_STMP37XX -#define cpu_is_stmp37xx() (1) -#else -#define cpu_is_stmp37xx() (0) -#endif - -#ifdef CONFIG_ARCH_STMP378X -#define cpu_is_stmp378x() (1) -#else -#define cpu_is_stmp378x() (0) -#endif - -#endif /* __ASM_PLAT_CPU_H */ diff --git a/arch/arm/plat-stmp3xxx/include/mach/debug-macro.S b/arch/arm/plat-stmp3xxx/include/mach/debug-macro.S deleted file mode 100644 index d3a0985c9681..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/debug-macro.S +++ /dev/null @@ -1,39 +0,0 @@ -/* - * Debugging macro include header - * - * Embedded Alley Solutions, Inc <source@embeddedalley.com> - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ - - .macro addruart, rp, rv - mov \rp, #0x00070000 - add \rv, \rp, #0xf0000000 @ virtual base - add \rp, \rp, #0x80000000 @ physical base - .endm - - .macro senduart,rd,rx - strb \rd, [\rx, #0] @ data register at 0 - .endm - - .macro waituart,rd,rx -1001: ldr \rd, [\rx, #0x18] @ UARTFLG - tst \rd, #1 << 5 @ UARTFLGUTXFF - 1 when full - bne 1001b - .endm - - .macro busyuart,rd,rx -1001: ldr \rd, [\rx, #0x18] @ UARTFLG - tst \rd, #1 << 3 @ UARTFLGUBUSY - 1 when busy - bne 1001b - .endm diff --git a/arch/arm/plat-stmp3xxx/include/mach/dma.h b/arch/arm/plat-stmp3xxx/include/mach/dma.h deleted file mode 100644 index 7c58557c6766..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/dma.h +++ /dev/null @@ -1,153 +0,0 @@ -/* - * Freescale STMP37XX/STMP378X DMA helper interface - * - * Embedded Alley Solutions, Inc <source@embeddedalley.com> - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#ifndef __ASM_PLAT_STMP3XXX_DMA_H -#define __ASM_PLAT_STMP3XXX_DMA_H - -#include <linux/platform_device.h> -#include <linux/dmapool.h> - -#if !defined(MAX_PIO_WORDS) -#define MAX_PIO_WORDS (15) -#endif - -#define STMP3XXX_BUS_APBH 0 -#define STMP3XXX_BUS_APBX 1 -#define STMP3XXX_DMA_MAX_CHANNEL 16 -#define STMP3XXX_DMA_BUS(dma) ((dma) / 16) -#define STMP3XXX_DMA_CHANNEL(dma) ((dma) % 16) -#define STMP3XXX_DMA(channel, bus) ((bus) * 16 + (channel)) -#define MAX_DMA_ADDRESS 0xffffffff -#define MAX_DMA_CHANNELS 32 - -struct stmp3xxx_dma_command { - u32 next; - u32 cmd; - union { - u32 buf_ptr; - u32 alternate; - }; - u32 pio_words[MAX_PIO_WORDS]; -}; - -struct stmp3xxx_dma_descriptor { - struct stmp3xxx_dma_command *command; - dma_addr_t handle; - - /* The virtual address of the buffer pointer */ - void *virtual_buf_ptr; - /* The next descriptor in a the DMA chain (optional) */ - struct stmp3xxx_dma_descriptor *next_descr; -}; - -struct stmp37xx_circ_dma_chain { - unsigned total_count; - struct stmp3xxx_dma_descriptor *chain; - - unsigned free_index; - unsigned free_count; - unsigned active_index; - unsigned active_count; - unsigned cooked_index; - unsigned cooked_count; - - int bus; - unsigned channel; -}; - -static inline struct stmp3xxx_dma_descriptor - *stmp3xxx_dma_circ_get_free_head(struct stmp37xx_circ_dma_chain *chain) -{ - return &(chain->chain[chain->free_index]); -} - -static inline struct stmp3xxx_dma_descriptor - *stmp3xxx_dma_circ_get_cooked_head(struct stmp37xx_circ_dma_chain *chain) -{ - return &(chain->chain[chain->cooked_index]); -} - -int stmp3xxx_dma_request(int ch, struct device *dev, const char *name); -int stmp3xxx_dma_release(int ch); -int stmp3xxx_dma_allocate_command(int ch, - struct stmp3xxx_dma_descriptor *descriptor); -int stmp3xxx_dma_free_command(int ch, - struct stmp3xxx_dma_descriptor *descriptor); -void stmp3xxx_dma_continue(int channel, u32 semaphore); -void stmp3xxx_dma_go(int ch, struct stmp3xxx_dma_descriptor *head, - u32 semaphore); -int stmp3xxx_dma_running(int ch); -int stmp3xxx_dma_make_chain(int ch, struct stmp37xx_circ_dma_chain *chain, - struct stmp3xxx_dma_descriptor descriptors[], - unsigned items); -void stmp3xxx_dma_free_chain(struct stmp37xx_circ_dma_chain *chain); -void stmp37xx_circ_clear_chain(struct stmp37xx_circ_dma_chain *chain); -void stmp37xx_circ_advance_free(struct stmp37xx_circ_dma_chain *chain, - unsigned count); -void stmp37xx_circ_advance_active(struct stmp37xx_circ_dma_chain *chain, - unsigned count); -unsigned stmp37xx_circ_advance_cooked(struct stmp37xx_circ_dma_chain *chain); -int stmp3xxx_dma_read_semaphore(int ch); -void stmp3xxx_dma_init(void); -void stmp3xxx_dma_set_alt_target(int ch, int target); -void stmp3xxx_dma_suspend(void); -void stmp3xxx_dma_resume(void); - -/* - * STMP37xx and STMP378x have different DMA control - * registers layout - */ - -void stmp3xxx_arch_dma_freeze(int ch); -void stmp3xxx_arch_dma_unfreeze(int ch); -void stmp3xxx_arch_dma_reset_channel(int ch); -void stmp3xxx_arch_dma_enable_interrupt(int ch); -void stmp3xxx_arch_dma_clear_interrupt(int ch); -int stmp3xxx_arch_dma_is_interrupt(int ch); - -static inline void stmp3xxx_dma_reset_channel(int ch) -{ - stmp3xxx_arch_dma_reset_channel(ch); -} - - -static inline void stmp3xxx_dma_freeze(int ch) -{ - stmp3xxx_arch_dma_freeze(ch); -} - -static inline void stmp3xxx_dma_unfreeze(int ch) -{ - stmp3xxx_arch_dma_unfreeze(ch); -} - -static inline void stmp3xxx_dma_enable_interrupt(int ch) -{ - stmp3xxx_arch_dma_enable_interrupt(ch); -} - -static inline void stmp3xxx_dma_clear_interrupt(int ch) -{ - stmp3xxx_arch_dma_clear_interrupt(ch); -} - -static inline int stmp3xxx_dma_is_interrupt(int ch) -{ - return stmp3xxx_arch_dma_is_interrupt(ch); -} - -#endif /* __ASM_PLAT_STMP3XXX_DMA_H */ diff --git a/arch/arm/plat-stmp3xxx/include/mach/gpio.h b/arch/arm/plat-stmp3xxx/include/mach/gpio.h deleted file mode 100644 index a8b579256170..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/gpio.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * Freescale STMP37XX/STMP378X GPIO interface - * - * Embedded Alley Solutions, Inc <source@embeddedalley.com> - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#ifndef __ASM_PLAT_GPIO_H -#define __ASM_PLAT_GPIO_H - -#define ARCH_NR_GPIOS (32 * 3) -#define gpio_to_irq(gpio) __gpio_to_irq(gpio) -#define gpio_get_value(gpio) __gpio_get_value(gpio) -#define gpio_set_value(gpio, value) __gpio_set_value(gpio, value) - -#include <asm-generic/gpio.h> - -#endif /* __ASM_PLAT_GPIO_H */ diff --git a/arch/arm/plat-stmp3xxx/include/mach/gpmi.h b/arch/arm/plat-stmp3xxx/include/mach/gpmi.h deleted file mode 100644 index e166432910ad..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/gpmi.h +++ /dev/null @@ -1,12 +0,0 @@ -#ifndef __MACH_GPMI_H - -#include <linux/mtd/partitions.h> -#include <mach/regs-gpmi.h> - -struct gpmi_platform_data { - void *pins; - int nr_parts; - struct mtd_partition *parts; - const char *part_types[]; -}; -#endif diff --git a/arch/arm/plat-stmp3xxx/include/mach/hardware.h b/arch/arm/plat-stmp3xxx/include/mach/hardware.h deleted file mode 100644 index 47b8978405bc..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/hardware.h +++ /dev/null @@ -1,32 +0,0 @@ -/* - * This file contains the hardware definitions of the Freescale STMP3XXX - * - * Copyright (C) 2005 Sigmatel Inc - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#ifndef __ASM_ARCH_HARDWARE_H -#define __ASM_ARCH_HARDWARE_H - -/* - * Where in virtual memory the IO devices (timers, system controllers - * and so on) - */ -#define IO_BASE 0xF0000000 /* VA of IO */ -#define IO_SIZE 0x00100000 /* How much? */ -#define IO_START 0x80000000 /* PA of IO */ - -/* macro to get at IO space when running virtually */ -#define IO_ADDRESS(x) (((x) & 0x000fffff) | IO_BASE) - -#endif diff --git a/arch/arm/plat-stmp3xxx/include/mach/io.h b/arch/arm/plat-stmp3xxx/include/mach/io.h deleted file mode 100644 index d08b1b7f3d1c..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/io.h +++ /dev/null @@ -1,25 +0,0 @@ -/* - * Copyright (C) 2005 Sigmatel Inc - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#ifndef __ASM_ARM_ARCH_IO_H -#define __ASM_ARM_ARCH_IO_H - -#define IO_SPACE_LIMIT 0xffffffff - -#define __io(a) __typesafe_io(a) -#define __mem_pci(a) (a) -#define __mem_isa(a) (a) - -#endif diff --git a/arch/arm/plat-stmp3xxx/include/mach/memory.h b/arch/arm/plat-stmp3xxx/include/mach/memory.h deleted file mode 100644 index 61fa54882e12..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/memory.h +++ /dev/null @@ -1,22 +0,0 @@ -/* - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#ifndef __ASM_ARCH_MEMORY_H -#define __ASM_ARCH_MEMORY_H - -/* - * Physical DRAM offset. - */ -#define PLAT_PHYS_OFFSET UL(0x40000000) - -#endif diff --git a/arch/arm/plat-stmp3xxx/include/mach/mmc.h b/arch/arm/plat-stmp3xxx/include/mach/mmc.h deleted file mode 100644 index ba81e1543761..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/mmc.h +++ /dev/null @@ -1,14 +0,0 @@ -#ifndef _MACH_MMC_H -#define _MACH_MMC_H - -#include <mach/regs-ssp.h> - -struct stmp3xxxmmc_platform_data { - int (*get_wp)(void); - unsigned long (*setclock)(void __iomem *base, unsigned long); - void (*cmd_pullup)(int); - int (*hw_init)(void); - void (*hw_release)(void); -}; - -#endif diff --git a/arch/arm/plat-stmp3xxx/include/mach/pinmux.h b/arch/arm/plat-stmp3xxx/include/mach/pinmux.h deleted file mode 100644 index cc5af82279ad..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/pinmux.h +++ /dev/null @@ -1,157 +0,0 @@ -/* - * Freescale STMP37XX/STMP378X Pin Multiplexing - * - * Author: Vladislav Buzov <vbuzov@embeddedalley.com> - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#ifndef __PINMUX_H -#define __PINMUX_H - -#include <linux/spinlock.h> -#include <linux/types.h> -#include <linux/gpio.h> -#include <asm-generic/gpio.h> - -/* Pin definitions */ -#include "pins.h" -#include <mach/pins.h> - -/* - * Each pin may be routed up to four different HW interfaces - * including GPIO - */ -enum pin_fun { - PIN_FUN1 = 0, - PIN_FUN2, - PIN_FUN3, - PIN_GPIO, -}; - -/* - * Each pin may have different output drive strength in range from - * 4mA to 20mA. The most common case is 4, 8 and 12 mA strengths. - */ -enum pin_strength { - PIN_4MA = 0, - PIN_8MA, - PIN_12MA, - PIN_16MA, - PIN_20MA, -}; - -/* - * Each pin can be programmed for 1.8V or 3.3V - */ -enum pin_voltage { - PIN_1_8V = 0, - PIN_3_3V, -}; - -/* - * Structure to define a group of pins and their parameters - */ -struct pin_desc { - unsigned id; - enum pin_fun fun; - enum pin_strength strength; - enum pin_voltage voltage; - unsigned pullup:1; -}; - -struct pin_group { - struct pin_desc *pins; - int nr_pins; -}; - -/* Set pin drive strength */ -void stmp3xxx_pin_strength(unsigned id, enum pin_strength strength, - const char *label); - -/* Set pin voltage */ -void stmp3xxx_pin_voltage(unsigned id, enum pin_voltage voltage, - const char *label); - -/* Enable pull-up resistor for a pin */ -void stmp3xxx_pin_pullup(unsigned id, int enable, const char *label); - -/* - * Request a pin ownership, only one module (identified by @label) - * may own a pin. - */ -int stmp3xxx_request_pin(unsigned id, enum pin_fun fun, const char *label); - -/* Release pin */ -void stmp3xxx_release_pin(unsigned id, const char *label); - -void stmp3xxx_set_pin_type(unsigned id, enum pin_fun fun); - -/* - * Each bank is associated with a number of registers to control - * pin function, drive strength, voltage and pull-up reigster. The - * number of registers of a given type depends on the number of bits - * describin particular pin. - */ -#define HW_MUXSEL_NUM 2 /* registers per bank */ -#define HW_MUXSEL_PIN_LEN 2 /* bits per pin */ -#define HW_MUXSEL_PIN_NUM 16 /* pins per register */ -#define HW_MUXSEL_PINFUN_MASK 0x3 /* pin function mask */ -#define HW_MUXSEL_PINFUN_NUM 4 /* four options for a pin */ - -#define HW_DRIVE_NUM 4 /* registers per bank */ -#define HW_DRIVE_PIN_LEN 4 /* bits per pin */ -#define HW_DRIVE_PIN_NUM 8 /* pins per register */ -#define HW_DRIVE_PINDRV_MASK 0x3 /* pin strength mask - 2 bits */ -#define HW_DRIVE_PINDRV_NUM 5 /* five possible strength values */ -#define HW_DRIVE_PINV_MASK 0x4 /* pin voltage mask - 1 bit */ - - -struct stmp3xxx_pinmux_bank { - struct gpio_chip chip; - - /* Pins allocation map */ - unsigned long pin_map; - - /* Pin owner names */ - const char *pin_labels[32]; - - /* Bank registers */ - void __iomem *hw_muxsel[HW_MUXSEL_NUM]; - void __iomem *hw_drive[HW_DRIVE_NUM]; - void __iomem *hw_pull; - - void __iomem *pin2irq, - *irqlevel, - *irqpolarity, - *irqen, - *irqstat; - - /* HW MUXSEL register function bit values */ - u8 functions[HW_MUXSEL_PINFUN_NUM]; - - /* - * HW DRIVE register strength bit values: - * 0xff - requested strength is not supported for this bank - */ - u8 strengths[HW_DRIVE_PINDRV_NUM]; - - /* GPIO things */ - void __iomem *hw_gpio_in, - *hw_gpio_out, - *hw_gpio_doe; - int irq, virq; -}; - -int __init stmp3xxx_pinmux_init(int virtual_irq_start); - -#endif /* __PINMUX_H */ diff --git a/arch/arm/plat-stmp3xxx/include/mach/pins.h b/arch/arm/plat-stmp3xxx/include/mach/pins.h deleted file mode 100644 index c573318e1caa..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/pins.h +++ /dev/null @@ -1,30 +0,0 @@ -/* - * Freescale STMP37XX/STMP378X Pin multiplexing interface definitions - * - * Author: Vladislav Buzov <vbuzov@embeddedalley.com> - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#ifndef __ASM_PLAT_PINS_H -#define __ASM_PLAT_PINS_H - -#define STMP3XXX_PINID(bank, pin) (bank * 32 + pin) -#define STMP3XXX_PINID_TO_BANK(pinid) (pinid / 32) -#define STMP3XXX_PINID_TO_PINNUM(pinid) (pinid % 32) - -/* - * Special invalid pin identificator to show a pin doesn't exist - */ -#define PINID_NO_PIN STMP3XXX_PINID(0xFF, 0xFF) - -#endif /* __ASM_PLAT_PINS_H */ diff --git a/arch/arm/plat-stmp3xxx/include/mach/platform.h b/arch/arm/plat-stmp3xxx/include/mach/platform.h deleted file mode 100644 index 7007ddaa91eb..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/platform.h +++ /dev/null @@ -1,68 +0,0 @@ -/* - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#ifndef __ASM_PLAT_PLATFORM_H -#define __ASM_PLAT_PLATFORM_H - -#ifndef __ASSEMBLER__ -#include <linux/io.h> -#endif -#include <asm/sizes.h> - -/* Virtual address where registers are mapped */ -#define STMP3XXX_REGS_PHBASE 0x80000000 -#ifdef __ASSEMBLER__ -#define STMP3XXX_REGS_BASE 0xF0000000 -#else -#define STMP3XXX_REGS_BASE (void __iomem *)0xF0000000 -#endif -#define STMP3XXX_REGS_SIZE SZ_1M - -/* Virtual address where OCRAM is mapped */ -#define STMP3XXX_OCRAM_PHBASE 0x00000000 -#ifdef __ASSEMBLER__ -#define STMP3XXX_OCRAM_BASE 0xf1000000 -#else -#define STMP3XXX_OCRAM_BASE (void __iomem *)0xf1000000 -#endif -#define STMP3XXX_OCRAM_SIZE (32 * SZ_1K) - -#ifdef CONFIG_ARCH_STMP37XX -#define IRQ_PRIORITY_REG_RD HW_ICOLL_PRIORITYn_RD -#define IRQ_PRIORITY_REG_WR HW_ICOLL_PRIORITYn_WR -#endif - -#ifdef CONFIG_ARCH_STMP378X -#define IRQ_PRIORITY_REG_RD HW_ICOLL_INTERRUPTn_RD -#define IRQ_PRIORITY_REG_WR HW_ICOLL_INTERRUPTn_WR -#endif - -#define HW_STMP3XXX_SET 0x04 -#define HW_STMP3XXX_CLR 0x08 -#define HW_STMP3XXX_TOG 0x0c - -#ifndef __ASSEMBLER__ -static inline void stmp3xxx_clearl(u32 v, void __iomem *r) -{ - __raw_writel(v, r + HW_STMP3XXX_CLR); -} - -static inline void stmp3xxx_setl(u32 v, void __iomem *r) -{ - __raw_writel(v, r + HW_STMP3XXX_SET); -} -#endif - -#define BF(value, field) (((value) << BP_##field) & BM_##field) - -#endif /* __ASM_ARCH_PLATFORM_H */ diff --git a/arch/arm/plat-stmp3xxx/include/mach/stmp3xxx.h b/arch/arm/plat-stmp3xxx/include/mach/stmp3xxx.h deleted file mode 100644 index 2e300feaa4cf..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/stmp3xxx.h +++ /dev/null @@ -1,54 +0,0 @@ -/* - * Freescale STMP37XX/STMP378X core structure and function declarations - * - * Embedded Alley Solutions, Inc <source@embeddedalley.com> - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#ifndef __ASM_PLAT_STMP3XXX_H -#define __ASM_PLAT_STMP3XXX_H - -#include <linux/irq.h> - -extern struct sys_timer stmp3xxx_timer; - -void stmp3xxx_init_irq(struct irq_chip *chip); -void stmp3xxx_init(void); -int stmp3xxx_reset_block(void __iomem *hwreg, int just_enable); -extern struct platform_device stmp3xxx_dbguart, - stmp3xxx_appuart, - stmp3xxx_watchdog, - stmp3xxx_touchscreen, - stmp3xxx_keyboard, - stmp3xxx_gpmi, - stmp3xxx_mmc, - stmp3xxx_udc, - stmp3xxx_ehci, - stmp3xxx_rtc, - stmp3xxx_spi1, - stmp3xxx_spi2, - stmp3xxx_backlight, - stmp3xxx_rotdec, - stmp3xxx_dcp, - stmp3xxx_dcp_bootstream, - stmp3xxx_persistent, - stmp3xxx_framebuffer, - stmp3xxx_battery; -int stmp3xxx_ssp1_device_register(void); -int stmp3xxx_ssp2_device_register(void); - -struct pin_group; -void stmp3xxx_release_pin_group(struct pin_group *pin_group, const char *label); -int stmp3xxx_request_pin_group(struct pin_group *pin_group, const char *label); - -#endif /* __ASM_PLAT_STMP3XXX_H */ diff --git a/arch/arm/plat-stmp3xxx/include/mach/system.h b/arch/arm/plat-stmp3xxx/include/mach/system.h deleted file mode 100644 index 28a988889319..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/system.h +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (C) 2005 Sigmatel Inc - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#ifndef __ASM_ARCH_SYSTEM_H -#define __ASM_ARCH_SYSTEM_H - -#include <asm/proc-fns.h> -#include <mach/platform.h> -#include <mach/regs-clkctrl.h> -#include <mach/regs-power.h> - -static inline void arch_idle(void) -{ - /* - * This should do all the clock switching - * and wait for interrupt tricks - */ - - cpu_do_idle(); -} - -static inline void arch_reset(char mode, const char *cmd) -{ - /* Set BATTCHRG to default value */ - __raw_writel(0x00010000, REGS_POWER_BASE + HW_POWER_CHARGE); - - /* Set MINPWR to default value */ - __raw_writel(0, REGS_POWER_BASE + HW_POWER_MINPWR); - - /* Reset digital side of chip (but not power or RTC) */ - __raw_writel(BM_CLKCTRL_RESET_DIG, - REGS_CLKCTRL_BASE + HW_CLKCTRL_RESET); - - /* Should not return */ -} - -#endif diff --git a/arch/arm/plat-stmp3xxx/include/mach/timex.h b/arch/arm/plat-stmp3xxx/include/mach/timex.h deleted file mode 100644 index 3373985d7a8e..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/timex.h +++ /dev/null @@ -1,20 +0,0 @@ -/* - * Copyright (C) 1999 ARM Limited - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ - -/* - * System time clock is sourced from the 32k clock - */ -#define CLOCK_TICK_RATE (32768) diff --git a/arch/arm/plat-stmp3xxx/include/mach/uncompress.h b/arch/arm/plat-stmp3xxx/include/mach/uncompress.h deleted file mode 100644 index f79f5ee56cd4..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/uncompress.h +++ /dev/null @@ -1,53 +0,0 @@ -/* - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#ifndef __ASM_PLAT_UNCOMPRESS_H -#define __ASM_PLAT_UNCOMPRESS_H - -/* - * Register includes are for when the MMU enabled; we need to define our - * own stuff here for pre-MMU use - */ -#define UARTDBG_BASE 0x80070000 -#define UART(c) (((volatile unsigned *)UARTDBG_BASE)[c]) - -/* - * This does not append a newline - */ -static void putc(char c) -{ - /* Wait for TX fifo empty */ - while ((UART(6) & (1<<7)) == 0) - continue; - - /* Write byte */ - UART(0) = c; - - /* Wait for last bit to exit the UART */ - while (UART(6) & (1<<3)) - continue; -} - -static void flush(void) -{ -} - -/* - * nothing to do - */ -#define arch_decomp_setup() - -#define arch_decomp_wdog() - -#endif /* __ASM_PLAT_UNCOMPRESS_H */ diff --git a/arch/arm/plat-stmp3xxx/include/mach/vmalloc.h b/arch/arm/plat-stmp3xxx/include/mach/vmalloc.h deleted file mode 100644 index 943c1a29d641..000000000000 --- a/arch/arm/plat-stmp3xxx/include/mach/vmalloc.h +++ /dev/null @@ -1,12 +0,0 @@ -/* - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - * - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#define VMALLOC_END 0xf0000000UL diff --git a/arch/arm/plat-stmp3xxx/irq.c b/arch/arm/plat-stmp3xxx/irq.c deleted file mode 100644 index 6fdf9acf82ed..000000000000 --- a/arch/arm/plat-stmp3xxx/irq.c +++ /dev/null @@ -1,50 +0,0 @@ -/* - * Freescale STMP37XX/STMP378X common interrupt handling code - * - * Author: Vladislav Buzov <vbuzov@embeddedalley.com> - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <linux/irq.h> -#include <linux/sysdev.h> - -#include <mach/stmp3xxx.h> -#include <mach/platform.h> -#include <mach/regs-icoll.h> - -void __init stmp3xxx_init_irq(struct irq_chip *chip) -{ - unsigned int i, lv; - - /* Reset the interrupt controller */ - stmp3xxx_reset_block(REGS_ICOLL_BASE + HW_ICOLL_CTRL, true); - - /* Disable all interrupts initially */ - for (i = 0; i < NR_REAL_IRQS; i++) { - chip->irq_mask(irq_get_irq_data(i)); - irq_set_chip_and_handler(i, chip, handle_level_irq); - set_irq_flags(i, IRQF_VALID | IRQF_PROBE); - } - - /* Ensure vector is cleared */ - for (lv = 0; lv < 4; lv++) - __raw_writel(1 << lv, REGS_ICOLL_BASE + HW_ICOLL_LEVELACK); - __raw_writel(0, REGS_ICOLL_BASE + HW_ICOLL_VECTOR); - - /* Barrier */ - (void)__raw_readl(REGS_ICOLL_BASE + HW_ICOLL_STAT); -} - diff --git a/arch/arm/plat-stmp3xxx/pinmux.c b/arch/arm/plat-stmp3xxx/pinmux.c deleted file mode 100644 index 3def03b3217d..000000000000 --- a/arch/arm/plat-stmp3xxx/pinmux.c +++ /dev/null @@ -1,550 +0,0 @@ -/* - * Freescale STMP378X/STMP378X Pin Multiplexing - * - * Author: Vladislav Buzov <vbuzov@embeddedalley.com> - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#define DEBUG -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/sysdev.h> -#include <linux/string.h> -#include <linux/bitops.h> -#include <linux/irq.h> - -#include <mach/hardware.h> -#include <mach/platform.h> -#include <mach/regs-pinctrl.h> -#include <mach/pins.h> -#include <mach/pinmux.h> - -#define NR_BANKS ARRAY_SIZE(pinmux_banks) -static struct stmp3xxx_pinmux_bank pinmux_banks[] = { - [0] = { - .hw_muxsel = { - REGS_PINCTRL_BASE + HW_PINCTRL_MUXSEL0, - REGS_PINCTRL_BASE + HW_PINCTRL_MUXSEL1, - }, - .hw_drive = { - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE0, - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE1, - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE2, - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE3, - }, - .hw_pull = REGS_PINCTRL_BASE + HW_PINCTRL_PULL0, - .functions = { 0x0, 0x1, 0x2, 0x3 }, - .strengths = { 0x0, 0x1, 0x2, 0x3, 0xff }, - - .hw_gpio_in = REGS_PINCTRL_BASE + HW_PINCTRL_DIN0, - .hw_gpio_out = REGS_PINCTRL_BASE + HW_PINCTRL_DOUT0, - .hw_gpio_doe = REGS_PINCTRL_BASE + HW_PINCTRL_DOE0, - .irq = IRQ_GPIO0, - - .pin2irq = REGS_PINCTRL_BASE + HW_PINCTRL_PIN2IRQ0, - .irqstat = REGS_PINCTRL_BASE + HW_PINCTRL_IRQSTAT0, - .irqlevel = REGS_PINCTRL_BASE + HW_PINCTRL_IRQLEVEL0, - .irqpolarity = REGS_PINCTRL_BASE + HW_PINCTRL_IRQPOL0, - .irqen = REGS_PINCTRL_BASE + HW_PINCTRL_IRQEN0, - }, - [1] = { - .hw_muxsel = { - REGS_PINCTRL_BASE + HW_PINCTRL_MUXSEL2, - REGS_PINCTRL_BASE + HW_PINCTRL_MUXSEL3, - }, - .hw_drive = { - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE4, - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE5, - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE6, - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE7, - }, - .hw_pull = REGS_PINCTRL_BASE + HW_PINCTRL_PULL1, - .functions = { 0x0, 0x1, 0x2, 0x3 }, - .strengths = { 0x0, 0x1, 0x2, 0x3, 0xff }, - - .hw_gpio_in = REGS_PINCTRL_BASE + HW_PINCTRL_DIN1, - .hw_gpio_out = REGS_PINCTRL_BASE + HW_PINCTRL_DOUT1, - .hw_gpio_doe = REGS_PINCTRL_BASE + HW_PINCTRL_DOE1, - .irq = IRQ_GPIO1, - - .pin2irq = REGS_PINCTRL_BASE + HW_PINCTRL_PIN2IRQ1, - .irqstat = REGS_PINCTRL_BASE + HW_PINCTRL_IRQSTAT1, - .irqlevel = REGS_PINCTRL_BASE + HW_PINCTRL_IRQLEVEL1, - .irqpolarity = REGS_PINCTRL_BASE + HW_PINCTRL_IRQPOL1, - .irqen = REGS_PINCTRL_BASE + HW_PINCTRL_IRQEN1, - }, - [2] = { - .hw_muxsel = { - REGS_PINCTRL_BASE + HW_PINCTRL_MUXSEL4, - REGS_PINCTRL_BASE + HW_PINCTRL_MUXSEL5, - }, - .hw_drive = { - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE8, - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE9, - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE10, - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE11, - }, - .hw_pull = REGS_PINCTRL_BASE + HW_PINCTRL_PULL2, - .functions = { 0x0, 0x1, 0x2, 0x3 }, - .strengths = { 0x0, 0x1, 0x2, 0x1, 0x2 }, - - .hw_gpio_in = REGS_PINCTRL_BASE + HW_PINCTRL_DIN2, - .hw_gpio_out = REGS_PINCTRL_BASE + HW_PINCTRL_DOUT2, - .hw_gpio_doe = REGS_PINCTRL_BASE + HW_PINCTRL_DOE2, - .irq = IRQ_GPIO2, - - .pin2irq = REGS_PINCTRL_BASE + HW_PINCTRL_PIN2IRQ2, - .irqstat = REGS_PINCTRL_BASE + HW_PINCTRL_IRQSTAT2, - .irqlevel = REGS_PINCTRL_BASE + HW_PINCTRL_IRQLEVEL2, - .irqpolarity = REGS_PINCTRL_BASE + HW_PINCTRL_IRQPOL2, - .irqen = REGS_PINCTRL_BASE + HW_PINCTRL_IRQEN2, - }, - [3] = { - .hw_muxsel = { - REGS_PINCTRL_BASE + HW_PINCTRL_MUXSEL6, - REGS_PINCTRL_BASE + HW_PINCTRL_MUXSEL7, - }, - .hw_drive = { - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE12, - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE13, - REGS_PINCTRL_BASE + HW_PINCTRL_DRIVE14, - NULL, - }, - .hw_pull = REGS_PINCTRL_BASE + HW_PINCTRL_PULL3, - .functions = {0x0, 0x1, 0x2, 0x3}, - .strengths = {0x0, 0x1, 0x2, 0x3, 0xff}, - }, -}; - -static inline struct stmp3xxx_pinmux_bank * -stmp3xxx_pinmux_bank(unsigned id, unsigned *bank, unsigned *pin) -{ - unsigned b, p; - - b = STMP3XXX_PINID_TO_BANK(id); - p = STMP3XXX_PINID_TO_PINNUM(id); - BUG_ON(b >= NR_BANKS); - if (bank) - *bank = b; - if (pin) - *pin = p; - return &pinmux_banks[b]; -} - -/* Check if requested pin is owned by caller */ -static int stmp3xxx_check_pin(unsigned id, const char *label) -{ - unsigned pin; - struct stmp3xxx_pinmux_bank *pm = stmp3xxx_pinmux_bank(id, NULL, &pin); - - if (!test_bit(pin, &pm->pin_map)) { - printk(KERN_WARNING - "%s: Accessing free pin %x, caller %s\n", - __func__, id, label); - - return -EINVAL; - } - - if (label && pm->pin_labels[pin] && - strcmp(label, pm->pin_labels[pin])) { - printk(KERN_WARNING - "%s: Wrong pin owner %x, caller %s owner %s\n", - __func__, id, label, pm->pin_labels[pin]); - - return -EINVAL; - } - return 0; -} - -void stmp3xxx_pin_strength(unsigned id, enum pin_strength strength, - const char *label) -{ - struct stmp3xxx_pinmux_bank *pbank; - void __iomem *hwdrive; - u32 shift, val; - u32 bank, pin; - - pbank = stmp3xxx_pinmux_bank(id, &bank, &pin); - pr_debug("%s: label %s bank %d pin %d strength %d\n", __func__, label, - bank, pin, strength); - - hwdrive = pbank->hw_drive[pin / HW_DRIVE_PIN_NUM]; - shift = (pin % HW_DRIVE_PIN_NUM) * HW_DRIVE_PIN_LEN; - val = pbank->strengths[strength]; - if (val == 0xff) { - printk(KERN_WARNING - "%s: strength is not supported for bank %d, caller %s", - __func__, bank, label); - return; - } - - if (stmp3xxx_check_pin(id, label)) - return; - - pr_debug("%s: writing 0x%x to 0x%p register\n", __func__, - val << shift, hwdrive); - stmp3xxx_clearl(HW_DRIVE_PINDRV_MASK << shift, hwdrive); - stmp3xxx_setl(val << shift, hwdrive); -} - -void stmp3xxx_pin_voltage(unsigned id, enum pin_voltage voltage, - const char *label) -{ - struct stmp3xxx_pinmux_bank *pbank; - void __iomem *hwdrive; - u32 shift; - u32 bank, pin; - - pbank = stmp3xxx_pinmux_bank(id, &bank, &pin); - pr_debug("%s: label %s bank %d pin %d voltage %d\n", __func__, label, - bank, pin, voltage); - - hwdrive = pbank->hw_drive[pin / HW_DRIVE_PIN_NUM]; - shift = (pin % HW_DRIVE_PIN_NUM) * HW_DRIVE_PIN_LEN; - - if (stmp3xxx_check_pin(id, label)) - return; - - pr_debug("%s: changing 0x%x bit in 0x%p register\n", - __func__, HW_DRIVE_PINV_MASK << shift, hwdrive); - if (voltage == PIN_1_8V) - stmp3xxx_clearl(HW_DRIVE_PINV_MASK << shift, hwdrive); - else - stmp3xxx_setl(HW_DRIVE_PINV_MASK << shift, hwdrive); -} - -void stmp3xxx_pin_pullup(unsigned id, int enable, const char *label) -{ - struct stmp3xxx_pinmux_bank *pbank; - void __iomem *hwpull; - u32 bank, pin; - - pbank = stmp3xxx_pinmux_bank(id, &bank, &pin); - pr_debug("%s: label %s bank %d pin %d enable %d\n", __func__, label, - bank, pin, enable); - - hwpull = pbank->hw_pull; - - if (stmp3xxx_check_pin(id, label)) - return; - - pr_debug("%s: changing 0x%x bit in 0x%p register\n", - __func__, 1 << pin, hwpull); - if (enable) - stmp3xxx_setl(1 << pin, hwpull); - else - stmp3xxx_clearl(1 << pin, hwpull); -} - -int stmp3xxx_request_pin(unsigned id, enum pin_fun fun, const char *label) -{ - struct stmp3xxx_pinmux_bank *pbank; - u32 bank, pin; - int ret = 0; - - pbank = stmp3xxx_pinmux_bank(id, &bank, &pin); - pr_debug("%s: label %s bank %d pin %d fun %d\n", __func__, label, - bank, pin, fun); - - if (test_bit(pin, &pbank->pin_map)) { - printk(KERN_WARNING - "%s: CONFLICT DETECTED pin %d:%d caller %s owner %s\n", - __func__, bank, pin, label, pbank->pin_labels[pin]); - return -EBUSY; - } - - set_bit(pin, &pbank->pin_map); - pbank->pin_labels[pin] = label; - - stmp3xxx_set_pin_type(id, fun); - - return ret; -} - -void stmp3xxx_set_pin_type(unsigned id, enum pin_fun fun) -{ - struct stmp3xxx_pinmux_bank *pbank; - void __iomem *hwmux; - u32 shift, val; - u32 bank, pin; - - pbank = stmp3xxx_pinmux_bank(id, &bank, &pin); - - hwmux = pbank->hw_muxsel[pin / HW_MUXSEL_PIN_NUM]; - shift = (pin % HW_MUXSEL_PIN_NUM) * HW_MUXSEL_PIN_LEN; - - val = pbank->functions[fun]; - shift = (pin % HW_MUXSEL_PIN_NUM) * HW_MUXSEL_PIN_LEN; - pr_debug("%s: writing 0x%x to 0x%p register\n", - __func__, val << shift, hwmux); - stmp3xxx_clearl(HW_MUXSEL_PINFUN_MASK << shift, hwmux); - stmp3xxx_setl(val << shift, hwmux); -} - -void stmp3xxx_release_pin(unsigned id, const char *label) -{ - struct stmp3xxx_pinmux_bank *pbank; - u32 bank, pin; - - pbank = stmp3xxx_pinmux_bank(id, &bank, &pin); - pr_debug("%s: label %s bank %d pin %d\n", __func__, label, bank, pin); - - if (stmp3xxx_check_pin(id, label)) - return; - - clear_bit(pin, &pbank->pin_map); - pbank->pin_labels[pin] = NULL; -} - -int stmp3xxx_request_pin_group(struct pin_group *pin_group, const char *label) -{ - struct pin_desc *pin; - int p; - int err = 0; - - /* Allocate and configure pins */ - for (p = 0; p < pin_group->nr_pins; p++) { - pr_debug("%s: #%d\n", __func__, p); - pin = &pin_group->pins[p]; - - err = stmp3xxx_request_pin(pin->id, pin->fun, label); - if (err) - goto out_err; - - stmp3xxx_pin_strength(pin->id, pin->strength, label); - stmp3xxx_pin_voltage(pin->id, pin->voltage, label); - stmp3xxx_pin_pullup(pin->id, pin->pullup, label); - } - - return 0; - -out_err: - /* Release allocated pins in case of error */ - while (--p >= 0) { - pr_debug("%s: releasing #%d\n", __func__, p); - stmp3xxx_release_pin(pin_group->pins[p].id, label); - } - return err; -} -EXPORT_SYMBOL(stmp3xxx_request_pin_group); - -void stmp3xxx_release_pin_group(struct pin_group *pin_group, const char *label) -{ - struct pin_desc *pin; - int p; - - for (p = 0; p < pin_group->nr_pins; p++) { - pin = &pin_group->pins[p]; - stmp3xxx_release_pin(pin->id, label); - } -} -EXPORT_SYMBOL(stmp3xxx_release_pin_group); - -static int stmp3xxx_irq_data_to_gpio(struct irq_data *d, - struct stmp3xxx_pinmux_bank **bank, unsigned *gpio) -{ - struct stmp3xxx_pinmux_bank *pm; - - for (pm = pinmux_banks; pm < pinmux_banks + NR_BANKS; pm++) - if (pm->virq <= d->irq && d->irq < pm->virq + 32) { - *bank = pm; - *gpio = d->irq - pm->virq; - return 0; - } - return -ENOENT; -} - -static int stmp3xxx_set_irqtype(struct irq_data *d, unsigned type) -{ - struct stmp3xxx_pinmux_bank *pm; - unsigned gpio; - int l, p; - - stmp3xxx_irq_data_to_gpio(d, &pm, &gpio); - switch (type) { - case IRQ_TYPE_EDGE_RISING: - l = 0; p = 1; break; - case IRQ_TYPE_EDGE_FALLING: - l = 0; p = 0; break; - case IRQ_TYPE_LEVEL_HIGH: - l = 1; p = 1; break; - case IRQ_TYPE_LEVEL_LOW: - l = 1; p = 0; break; - default: - pr_debug("%s: Incorrect GPIO interrupt type 0x%x\n", - __func__, type); - return -ENXIO; - } - - if (l) - stmp3xxx_setl(1 << gpio, pm->irqlevel); - else - stmp3xxx_clearl(1 << gpio, pm->irqlevel); - if (p) - stmp3xxx_setl(1 << gpio, pm->irqpolarity); - else - stmp3xxx_clearl(1 << gpio, pm->irqpolarity); - return 0; -} - -static void stmp3xxx_pin_ack_irq(struct irq_data *d) -{ - u32 stat; - struct stmp3xxx_pinmux_bank *pm; - unsigned gpio; - - stmp3xxx_irq_data_to_gpio(d, &pm, &gpio); - stat = __raw_readl(pm->irqstat) & (1 << gpio); - stmp3xxx_clearl(stat, pm->irqstat); -} - -static void stmp3xxx_pin_mask_irq(struct irq_data *d) -{ - struct stmp3xxx_pinmux_bank *pm; - unsigned gpio; - - stmp3xxx_irq_data_to_gpio(d, &pm, &gpio); - stmp3xxx_clearl(1 << gpio, pm->irqen); - stmp3xxx_clearl(1 << gpio, pm->pin2irq); -} - -static void stmp3xxx_pin_unmask_irq(struct irq_data *d) -{ - struct stmp3xxx_pinmux_bank *pm; - unsigned gpio; - - stmp3xxx_irq_data_to_gpio(d, &pm, &gpio); - stmp3xxx_setl(1 << gpio, pm->irqen); - stmp3xxx_setl(1 << gpio, pm->pin2irq); -} - -static inline -struct stmp3xxx_pinmux_bank *to_pinmux_bank(struct gpio_chip *chip) -{ - return container_of(chip, struct stmp3xxx_pinmux_bank, chip); -} - -static int stmp3xxx_gpio_to_irq(struct gpio_chip *chip, unsigned offset) -{ - struct stmp3xxx_pinmux_bank *pm = to_pinmux_bank(chip); - return pm->virq + offset; -} - -static int stmp3xxx_gpio_get(struct gpio_chip *chip, unsigned offset) -{ - struct stmp3xxx_pinmux_bank *pm = to_pinmux_bank(chip); - unsigned v; - - v = __raw_readl(pm->hw_gpio_in) & (1 << offset); - return v ? 1 : 0; -} - -static void stmp3xxx_gpio_set(struct gpio_chip *chip, unsigned offset, int v) -{ - struct stmp3xxx_pinmux_bank *pm = to_pinmux_bank(chip); - - if (v) - stmp3xxx_setl(1 << offset, pm->hw_gpio_out); - else - stmp3xxx_clearl(1 << offset, pm->hw_gpio_out); -} - -static int stmp3xxx_gpio_output(struct gpio_chip *chip, unsigned offset, int v) -{ - struct stmp3xxx_pinmux_bank *pm = to_pinmux_bank(chip); - - stmp3xxx_setl(1 << offset, pm->hw_gpio_doe); - stmp3xxx_gpio_set(chip, offset, v); - return 0; -} - -static int stmp3xxx_gpio_input(struct gpio_chip *chip, unsigned offset) -{ - struct stmp3xxx_pinmux_bank *pm = to_pinmux_bank(chip); - - stmp3xxx_clearl(1 << offset, pm->hw_gpio_doe); - return 0; -} - -static int stmp3xxx_gpio_request(struct gpio_chip *chip, unsigned offset) -{ - return stmp3xxx_request_pin(chip->base + offset, PIN_GPIO, "gpio"); -} - -static void stmp3xxx_gpio_free(struct gpio_chip *chip, unsigned offset) -{ - stmp3xxx_release_pin(chip->base + offset, "gpio"); -} - -static void stmp3xxx_gpio_irq(u32 irq, struct irq_desc *desc) -{ - struct stmp3xxx_pinmux_bank *pm = irq_get_handler_data(irq); - int gpio_irq = pm->virq; - u32 stat = __raw_readl(pm->irqstat); - - while (stat) { - if (stat & 1) - generic_handle_irq(gpio_irq); - gpio_irq++; - stat >>= 1; - } -} - -static struct irq_chip gpio_irq_chip = { - .irq_ack = stmp3xxx_pin_ack_irq, - .irq_mask = stmp3xxx_pin_mask_irq, - .irq_unmask = stmp3xxx_pin_unmask_irq, - .irq_set_type = stmp3xxx_set_irqtype, -}; - -int __init stmp3xxx_pinmux_init(int virtual_irq_start) -{ - int b, r = 0; - struct stmp3xxx_pinmux_bank *pm; - int virq; - - for (b = 0; b < 3; b++) { - /* only banks 0,1,2 are allowed to GPIO */ - pm = pinmux_banks + b; - pm->chip.base = 32 * b; - pm->chip.ngpio = 32; - pm->chip.owner = THIS_MODULE; - pm->chip.can_sleep = 1; - pm->chip.exported = 1; - pm->chip.to_irq = stmp3xxx_gpio_to_irq; - pm->chip.direction_input = stmp3xxx_gpio_input; - pm->chip.direction_output = stmp3xxx_gpio_output; - pm->chip.get = stmp3xxx_gpio_get; - pm->chip.set = stmp3xxx_gpio_set; - pm->chip.request = stmp3xxx_gpio_request; - pm->chip.free = stmp3xxx_gpio_free; - pm->virq = virtual_irq_start + b * 32; - - for (virq = pm->virq; virq < pm->virq; virq++) { - gpio_irq_chip.irq_mask(irq_get_irq_data(virq)); - irq_set_chip_and_handler(virq, &gpio_irq_chip, - handle_level_irq); - set_irq_flags(virq, IRQF_VALID); - } - r = gpiochip_add(&pm->chip); - if (r < 0) - break; - irq_set_chained_handler(pm->irq, stmp3xxx_gpio_irq); - irq_set_handler_data(pm->irq, pm); - } - return r; -} - -MODULE_AUTHOR("Vladislav Buzov"); -MODULE_LICENSE("GPL"); diff --git a/arch/arm/plat-stmp3xxx/timer.c b/arch/arm/plat-stmp3xxx/timer.c deleted file mode 100644 index c395630a6edc..000000000000 --- a/arch/arm/plat-stmp3xxx/timer.c +++ /dev/null @@ -1,186 +0,0 @@ -/* - * System timer for Freescale STMP37XX/STMP378X - * - * Embedded Alley Solutions, Inc <source@embeddedalley.com> - * - * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved. - * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved. - */ - -/* - * The code contained herein is licensed under the GNU General Public - * License. You may obtain a copy of the GNU General Public License - * Version 2 or later at the following locations: - * - * http://www.opensource.org/licenses/gpl-license.html - * http://www.gnu.org/copyleft/gpl.html - */ -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/clocksource.h> -#include <linux/clockchips.h> -#include <linux/io.h> -#include <linux/irq.h> -#include <linux/interrupt.h> - -#include <asm/mach/time.h> -#include <mach/stmp3xxx.h> -#include <mach/platform.h> -#include <mach/regs-timrot.h> - -static irqreturn_t -stmp3xxx_timer_interrupt(int irq, void *dev_id) -{ - struct clock_event_device *c = dev_id; - - /* timer 0 */ - if (__raw_readl(REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL0) & - BM_TIMROT_TIMCTRLn_IRQ) { - stmp3xxx_clearl(BM_TIMROT_TIMCTRLn_IRQ, - REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL0); - c->event_handler(c); - } - - /* timer 1 */ - else if (__raw_readl(REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL1) - & BM_TIMROT_TIMCTRLn_IRQ) { - stmp3xxx_clearl(BM_TIMROT_TIMCTRLn_IRQ, - REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL1); - stmp3xxx_clearl(BM_TIMROT_TIMCTRLn_IRQ_EN, - REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL1); - __raw_writel(0xFFFF, REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT1); - } - - return IRQ_HANDLED; -} - -static cycle_t stmp3xxx_clock_read(struct clocksource *cs) -{ - return ~((__raw_readl(REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT1) - & 0xFFFF0000) >> 16); -} - -static int -stmp3xxx_timrot_set_next_event(unsigned long delta, - struct clock_event_device *dev) -{ - /* reload the timer */ - __raw_writel(delta, REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT0); - return 0; -} - -static void -stmp3xxx_timrot_set_mode(enum clock_event_mode mode, - struct clock_event_device *dev) -{ -} - -static struct clock_event_device ckevt_timrot = { - .name = "timrot", - .features = CLOCK_EVT_FEAT_ONESHOT, - .shift = 32, - .set_next_event = stmp3xxx_timrot_set_next_event, - .set_mode = stmp3xxx_timrot_set_mode, -}; - -static struct clocksource cksrc_stmp3xxx = { - .name = "cksrc_stmp3xxx", - .rating = 250, - .read = stmp3xxx_clock_read, - .mask = CLOCKSOURCE_MASK(16), - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - -static struct irqaction stmp3xxx_timer_irq = { - .name = "stmp3xxx_timer", - .flags = IRQF_DISABLED | IRQF_TIMER, - .handler = stmp3xxx_timer_interrupt, - .dev_id = &ckevt_timrot, -}; - - -/* - * Set up timer interrupt, and return the current time in seconds. - */ -static void __init stmp3xxx_init_timer(void) -{ - ckevt_timrot.mult = div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC, - ckevt_timrot.shift); - ckevt_timrot.min_delta_ns = clockevent_delta2ns(2, &ckevt_timrot); - ckevt_timrot.max_delta_ns = clockevent_delta2ns(0xFFF, &ckevt_timrot); - ckevt_timrot.cpumask = cpumask_of(0); - - stmp3xxx_reset_block(REGS_TIMROT_BASE, false); - - /* clear two timers */ - __raw_writel(0, REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT0); - __raw_writel(0, REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT1); - - /* configure them */ - __raw_writel( - (8 << BP_TIMROT_TIMCTRLn_SELECT) | /* 32 kHz */ - BM_TIMROT_TIMCTRLn_RELOAD | - BM_TIMROT_TIMCTRLn_UPDATE | - BM_TIMROT_TIMCTRLn_IRQ_EN, - REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL0); - __raw_writel( - (8 << BP_TIMROT_TIMCTRLn_SELECT) | /* 32 kHz */ - BM_TIMROT_TIMCTRLn_RELOAD | - BM_TIMROT_TIMCTRLn_UPDATE | - BM_TIMROT_TIMCTRLn_IRQ_EN, - REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL1); - - __raw_writel(CLOCK_TICK_RATE / HZ - 1, - REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT0); - __raw_writel(0xFFFF, REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT1); - - setup_irq(IRQ_TIMER0, &stmp3xxx_timer_irq); - - clocksource_register_hz(&cksrc_stmp3xxx, CLOCK_TICK_RATE); - clockevents_register_device(&ckevt_timrot); -} - -#ifdef CONFIG_PM - -void stmp3xxx_suspend_timer(void) -{ - stmp3xxx_clearl(BM_TIMROT_TIMCTRLn_IRQ_EN | BM_TIMROT_TIMCTRLn_IRQ, - REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL0); - stmp3xxx_setl(BM_TIMROT_ROTCTRL_CLKGATE, - REGS_TIMROT_BASE + HW_TIMROT_ROTCTRL); -} - -void stmp3xxx_resume_timer(void) -{ - stmp3xxx_clearl(BM_TIMROT_ROTCTRL_SFTRST | BM_TIMROT_ROTCTRL_CLKGATE, - REGS_TIMROT_BASE + HW_TIMROT_ROTCTRL); - __raw_writel( - 8 << BP_TIMROT_TIMCTRLn_SELECT | /* 32 kHz */ - BM_TIMROT_TIMCTRLn_RELOAD | - BM_TIMROT_TIMCTRLn_UPDATE | - BM_TIMROT_TIMCTRLn_IRQ_EN, - REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL0); - __raw_writel( - 8 << BP_TIMROT_TIMCTRLn_SELECT | /* 32 kHz */ - BM_TIMROT_TIMCTRLn_RELOAD | - BM_TIMROT_TIMCTRLn_UPDATE | - BM_TIMROT_TIMCTRLn_IRQ_EN, - REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL1); - __raw_writel(CLOCK_TICK_RATE / HZ - 1, - REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT0); - __raw_writel(0xFFFF, REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT1); -} - -#else - -#define stmp3xxx_suspend_timer NULL -#define stmp3xxx_resume_timer NULL - -#endif /* CONFIG_PM */ - -struct sys_timer stmp3xxx_timer = { - .init = stmp3xxx_init_timer, - .suspend = stmp3xxx_suspend_timer, - .resume = stmp3xxx_resume_timer, -}; |
