diff options
Diffstat (limited to 'arch/arm/mach-davinci/psc.c')
| -rw-r--r-- | arch/arm/mach-davinci/psc.c | 87 |
1 files changed, 57 insertions, 30 deletions
diff --git a/arch/arm/mach-davinci/psc.c b/arch/arm/mach-davinci/psc.c index e1b0050283a..1334416559a 100644 --- a/arch/arm/mach-davinci/psc.c +++ b/arch/arm/mach-davinci/psc.c @@ -25,39 +25,40 @@ #include <asm/io.h> #include <asm/hardware.h> #include <asm/arch/psc.h> +#include <asm/arch/mux.h> -#define PTCMD __REG(0x01C41120) -#define PDSTAT __REG(0x01C41200) -#define PDCTL1 __REG(0x01C41304) -#define EPCPR __REG(0x01C41070) -#define PTSTAT __REG(0x01C41128) +/* PSC register offsets */ +#define EPCPR 0x070 +#define PTCMD 0x120 +#define PTSTAT 0x128 +#define PDSTAT 0x200 +#define PDCTL1 0x304 +#define MDSTAT 0x800 +#define MDCTL 0xA00 -#define MDSTAT IO_ADDRESS(0x01C41800) -#define MDCTL IO_ADDRESS(0x01C41A00) - -#define PINMUX0 __REG(0x01c40000) -#define PINMUX1 __REG(0x01c40004) -#define VDD3P3V_PWDN __REG(0x01C40048) +/* System control register offsets */ +#define VDD3P3V_PWDN 0x48 static void davinci_psc_mux(unsigned int id) { switch (id) { case DAVINCI_LPSC_ATA: - PINMUX0 |= (1 << 17) | (1 << 16); + davinci_mux_peripheral(DAVINCI_MUX_HDIREN, 1); + davinci_mux_peripheral(DAVINCI_MUX_ATAEN, 1); break; case DAVINCI_LPSC_MMC_SD: /* VDD power manupulations are done in U-Boot for CPMAC * so applies to MMC as well */ /*Set up the pull regiter for MMC */ - VDD3P3V_PWDN = 0x0; - PINMUX1 &= (~(1 << 9)); + davinci_writel(0, DAVINCI_SYSTEM_MODULE_BASE + VDD3P3V_PWDN); + davinci_mux_peripheral(DAVINCI_MUX_MSTK, 0); break; case DAVINCI_LPSC_I2C: - PINMUX1 |= (1 << 7); + davinci_mux_peripheral(DAVINCI_MUX_I2C, 1); break; case DAVINCI_LPSC_McBSP: - PINMUX1 |= (1 << 10); + davinci_mux_peripheral(DAVINCI_MUX_ASP, 1); break; default: break; @@ -67,33 +68,59 @@ static void davinci_psc_mux(unsigned int id) /* Enable or disable a PSC domain */ void davinci_psc_config(unsigned int domain, unsigned int id, char enable) { - volatile unsigned int *mdstat = (unsigned int *)((int)MDSTAT + 4 * id); - volatile unsigned int *mdctl = (unsigned int *)((int)MDCTL + 4 * id); + u32 epcpr, ptcmd, ptstat, pdstat, pdctl1, mdstat, mdctl, mdstat_mask; if (id < 0) return; + mdctl = davinci_readl(DAVINCI_PWR_SLEEP_CNTRL_BASE + MDCTL + 4 * id); if (enable) - *mdctl |= 0x00000003; /* Enable Module */ + mdctl |= 0x00000003; /* Enable Module */ else - *mdctl &= 0xFFFFFFF2; /* Disable Module */ + mdctl &= 0xFFFFFFF2; /* Disable Module */ + davinci_writel(mdctl, DAVINCI_PWR_SLEEP_CNTRL_BASE + MDCTL + 4 * id); + + pdstat = davinci_readl(DAVINCI_PWR_SLEEP_CNTRL_BASE + PDSTAT); + if ((pdstat & 0x00000001) == 0) { + pdctl1 = davinci_readl(DAVINCI_PWR_SLEEP_CNTRL_BASE + PDCTL1); + pdctl1 |= 0x1; + davinci_writel(pdctl1, DAVINCI_PWR_SLEEP_CNTRL_BASE + PDCTL1); + + ptcmd = 1 << domain; + davinci_writel(ptcmd, DAVINCI_PWR_SLEEP_CNTRL_BASE + PTCMD); - if ((PDSTAT & 0x00000001) == 0) { - PDCTL1 |= 0x1; - PTCMD = (1 << domain); - while ((((EPCPR >> domain) & 1) == 0)); + do { + epcpr = davinci_readl(DAVINCI_PWR_SLEEP_CNTRL_BASE + + EPCPR); + } while ((((epcpr >> domain) & 1) == 0)); - PDCTL1 |= 0x100; - while (!(((PTSTAT >> domain) & 1) == 0)); + pdctl1 = davinci_readl(DAVINCI_PWR_SLEEP_CNTRL_BASE + PDCTL1); + pdctl1 |= 0x100; + davinci_writel(pdctl1, DAVINCI_PWR_SLEEP_CNTRL_BASE + PDCTL1); + + do { + ptstat = davinci_readl(DAVINCI_PWR_SLEEP_CNTRL_BASE + + PTSTAT); + } while (!(((ptstat >> domain) & 1) == 0)); } else { - PTCMD = (1 << domain); - while (!(((PTSTAT >> domain) & 1) == 0)); + ptcmd = 1 << domain; + davinci_writel(ptcmd, DAVINCI_PWR_SLEEP_CNTRL_BASE + PTCMD); + + do { + ptstat = davinci_readl(DAVINCI_PWR_SLEEP_CNTRL_BASE + + PTSTAT); + } while (!(((ptstat >> domain) & 1) == 0)); } if (enable) - while (!((*mdstat & 0x0000001F) == 0x3)); + mdstat_mask = 0x3; else - while (!((*mdstat & 0x0000001F) == 0x2)); + mdstat_mask = 0x2; + + do { + mdstat = davinci_readl(DAVINCI_PWR_SLEEP_CNTRL_BASE + + MDSTAT + 4 * id); + } while (!((mdstat & 0x0000001F) == mdstat_mask)); if (enable) davinci_psc_mux(id); |