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Diffstat (limited to 'arch/arm/mach-davinci/da850.c')
-rw-r--r--arch/arm/mach-davinci/da850.c114
1 files changed, 85 insertions, 29 deletions
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index 717806c6cef9..6b8331bf8cf3 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -26,6 +26,8 @@
#include <mach/time.h>
#include <mach/da8xx.h>
#include <mach/cpufreq.h>
+#include <mach/pm.h>
+#include <mach/gpio.h>
#include "clock.h"
#include "mux.h"
@@ -40,6 +42,7 @@
#define DA850_REF_FREQ 24000000
#define CFGCHIP3_ASYNC3_CLKSRC BIT(4)
+#define CFGCHIP3_PLL1_MASTER_LOCK BIT(5)
#define CFGCHIP0_PLL_MASTER_LOCK BIT(4)
static int da850_set_armrate(struct clk *clk, unsigned long rate);
@@ -333,7 +336,7 @@ static struct clk aemif_clk = {
.flags = ALWAYS_ENABLED,
};
-static struct davinci_clk da850_clks[] = {
+static struct clk_lookup da850_clks[] = {
CLK(NULL, "ref", &ref_clk),
CLK(NULL, "pll0", &pll0_clk),
CLK(NULL, "pll0_aux", &pll0_aux_clk),
@@ -535,6 +538,7 @@ static const struct mux_config da850_pins[] = {
MUX_CFG(DA850, GPIO2_15, 5, 0, 15, 8, false)
MUX_CFG(DA850, GPIO4_0, 10, 28, 15, 8, false)
MUX_CFG(DA850, GPIO4_1, 10, 24, 15, 8, false)
+ MUX_CFG(DA850, RTC_ALARM, 0, 28, 15, 2, false)
#endif
};
@@ -770,12 +774,15 @@ static struct map_desc da850_io_desc[] = {
.length = DA8XX_CP_INTC_SIZE,
.type = MT_DEVICE
},
+ {
+ .virtual = SRAM_VIRT,
+ .pfn = __phys_to_pfn(DA8XX_ARM_RAM_BASE),
+ .length = SZ_8K,
+ .type = MT_DEVICE
+ },
};
-static void __iomem *da850_psc_bases[] = {
- IO_ADDRESS(DA8XX_PSC0_BASE),
- IO_ADDRESS(DA8XX_PSC1_BASE),
-};
+static u32 da850_psc_bases[] = { DA8XX_PSC0_BASE, DA8XX_PSC1_BASE };
/* Contents of JTAG ID register used to identify exact cpu type */
static struct davinci_id da850_ids[] = {
@@ -790,22 +797,22 @@ static struct davinci_id da850_ids[] = {
static struct davinci_timer_instance da850_timer_instance[4] = {
{
- .base = IO_ADDRESS(DA8XX_TIMER64P0_BASE),
+ .base = DA8XX_TIMER64P0_BASE,
.bottom_irq = IRQ_DA8XX_TINT12_0,
.top_irq = IRQ_DA8XX_TINT34_0,
},
{
- .base = IO_ADDRESS(DA8XX_TIMER64P1_BASE),
+ .base = DA8XX_TIMER64P1_BASE,
.bottom_irq = IRQ_DA8XX_TINT12_1,
.top_irq = IRQ_DA8XX_TINT34_1,
},
{
- .base = IO_ADDRESS(DA850_TIMER64P2_BASE),
+ .base = DA850_TIMER64P2_BASE,
.bottom_irq = IRQ_DA850_TINT12_2,
.top_irq = IRQ_DA850_TINT34_2,
},
{
- .base = IO_ADDRESS(DA850_TIMER64P3_BASE),
+ .base = DA850_TIMER64P3_BASE,
.bottom_irq = IRQ_DA850_TINT12_3,
.top_irq = IRQ_DA850_TINT34_3,
},
@@ -825,12 +832,12 @@ static struct davinci_timer_info da850_timer_info = {
static void da850_set_async3_src(int pllnum)
{
struct clk *clk, *newparent = pllnum ? &pll1_sysclk2 : &pll0_sysclk2;
- struct davinci_clk *c;
+ struct clk_lookup *c;
unsigned int v;
int ret;
- for (c = da850_clks; c->lk.clk; c++) {
- clk = c->lk.clk;
+ for (c = da850_clks; c->clk; c++) {
+ clk = c->clk;
if (clk->flags & DA850_CLK_ASYNC3) {
ret = clk_set_parent(clk, newparent);
WARN(ret, "DA850: unable to re-parent clock %s",
@@ -838,12 +845,12 @@ static void da850_set_async3_src(int pllnum)
}
}
- v = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP3_REG));
+ v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
if (pllnum)
v |= CFGCHIP3_ASYNC3_CLKSRC;
else
v &= ~CFGCHIP3_ASYNC3_CLKSRC;
- __raw_writel(v, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP3_REG));
+ __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
}
#ifdef CONFIG_CPU_FREQ
@@ -987,7 +994,6 @@ static int da850_set_pll0rate(struct clk *clk, unsigned long index)
unsigned int prediv, mult, postdiv;
struct da850_opp *opp;
struct pll_data *pll = clk->pll_data;
- unsigned int v;
int ret;
opp = (struct da850_opp *) da850_freq_table[index].index;
@@ -995,11 +1001,6 @@ static int da850_set_pll0rate(struct clk *clk, unsigned long index)
mult = opp->mult;
postdiv = opp->postdiv;
- /* Unlock writing to PLL registers */
- v = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP0_REG));
- v &= ~CFGCHIP0_PLL_MASTER_LOCK;
- __raw_writel(v, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP0_REG));
-
ret = davinci_set_pllrate(pll, prediv, mult, postdiv);
if (WARN_ON(ret))
return ret;
@@ -1028,41 +1029,86 @@ static int da850_round_armrate(struct clk *clk, unsigned long rate)
}
#endif
+int da850_register_pm(struct platform_device *pdev)
+{
+ int ret;
+ struct davinci_pm_config *pdata = pdev->dev.platform_data;
+
+ ret = davinci_cfg_reg(DA850_RTC_ALARM);
+ if (ret)
+ return ret;
+
+ pdata->ddr2_ctlr_base = da8xx_get_mem_ctlr();
+ pdata->deepsleep_reg = DA8XX_SYSCFG1_VIRT(DA8XX_DEEPSLEEP_REG);
+ pdata->ddrpsc_num = DA8XX_LPSC1_EMIF3C;
+
+ pdata->cpupll_reg_base = ioremap(DA8XX_PLL0_BASE, SZ_4K);
+ if (!pdata->cpupll_reg_base)
+ return -ENOMEM;
+
+ pdata->ddrpll_reg_base = ioremap(DA8XX_PLL1_BASE, SZ_4K);
+ if (!pdata->ddrpll_reg_base) {
+ ret = -ENOMEM;
+ goto no_ddrpll_mem;
+ }
+
+ pdata->ddrpsc_reg_base = ioremap(DA8XX_PSC1_BASE, SZ_4K);
+ if (!pdata->ddrpsc_reg_base) {
+ ret = -ENOMEM;
+ goto no_ddrpsc_mem;
+ }
+
+ return platform_device_register(pdev);
+
+no_ddrpsc_mem:
+ iounmap(pdata->ddrpll_reg_base);
+no_ddrpll_mem:
+ iounmap(pdata->cpupll_reg_base);
+ return ret;
+}
static struct davinci_soc_info davinci_soc_info_da850 = {
.io_desc = da850_io_desc,
.io_desc_num = ARRAY_SIZE(da850_io_desc),
+ .jtag_id_reg = DA8XX_SYSCFG0_BASE + DA8XX_JTAG_ID_REG,
.ids = da850_ids,
.ids_num = ARRAY_SIZE(da850_ids),
.cpu_clks = da850_clks,
.psc_bases = da850_psc_bases,
.psc_bases_num = ARRAY_SIZE(da850_psc_bases),
+ .pinmux_base = DA8XX_SYSCFG0_BASE + 0x120,
.pinmux_pins = da850_pins,
.pinmux_pins_num = ARRAY_SIZE(da850_pins),
- .intc_base = (void __iomem *)DA8XX_CP_INTC_VIRT,
+ .intc_base = DA8XX_CP_INTC_BASE,
.intc_type = DAVINCI_INTC_TYPE_CP_INTC,
.intc_irq_prios = da850_default_priorities,
.intc_irq_num = DA850_N_CP_INTC_IRQ,
.timer_info = &da850_timer_info,
- .gpio_base = IO_ADDRESS(DA8XX_GPIO_BASE),
+ .gpio_type = GPIO_TYPE_DAVINCI,
+ .gpio_base = DA8XX_GPIO_BASE,
.gpio_num = 144,
.gpio_irq = IRQ_DA8XX_GPIO0,
.serial_dev = &da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
+ .sram_dma = DA8XX_ARM_RAM_BASE,
+ .sram_len = SZ_8K,
+ .reset_device = &da8xx_wdt_device,
};
void __init da850_init(void)
{
- da8xx_syscfg_base = ioremap(DA8XX_SYSCFG_BASE, SZ_4K);
- if (WARN(!da8xx_syscfg_base, "Unable to map syscfg module"))
- return;
-
- davinci_soc_info_da850.jtag_id_base =
- DA8XX_SYSCFG_VIRT(DA8XX_JTAG_ID_REG);
- davinci_soc_info_da850.pinmux_base = DA8XX_SYSCFG_VIRT(0x120);
+ unsigned int v;
davinci_common_init(&davinci_soc_info_da850);
+ da8xx_syscfg0_base = ioremap(DA8XX_SYSCFG0_BASE, SZ_4K);
+ if (WARN(!da8xx_syscfg0_base, "Unable to map syscfg0 module"))
+ return;
+
+ da8xx_syscfg1_base = ioremap(DA8XX_SYSCFG1_BASE, SZ_4K);
+ if (WARN(!da8xx_syscfg1_base, "Unable to map syscfg1 module"))
+ return;
+
/*
* Move the clock source of Async3 domain to PLL1 SYSCLK2.
* This helps keeping the peripherals on this domain insulated
@@ -1071,4 +1117,14 @@ void __init da850_init(void)
* be any noticible change even in non-DVFS use cases.
*/
da850_set_async3_src(1);
+
+ /* Unlock writing to PLL0 registers */
+ v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
+ v &= ~CFGCHIP0_PLL_MASTER_LOCK;
+ __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
+
+ /* Unlock writing to PLL1 registers */
+ v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
+ v &= ~CFGCHIP3_PLL1_MASTER_LOCK;
+ __raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
}
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-07 07:26:47 +0300