#include <common.h>
#include <asm/io.h>
#include <asm/arch/bits.h>
+#include <asm/arch/clocks.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/sys_info.h>
+static char *rev_s[CPU_3XX_MAX_REV] = {
+ "1.0",
+ "2.0",
+ "2.1",
+ "3.0",
+ "3.1",
+ "UNKNOWN",
+ "UNKNOWN",
+ "3.1.2"};
+
+/*
+ * sr32: clear & set a value in a bit range for a 32 bit address
+ */
+void sr32(u32 addr, u32 start_bit, u32 num_bits, u32 value)
+{
+ u32 tmp, msk = 0;
+ msk = 1 << num_bits;
+ --msk;
+ tmp = __raw_readl(addr) & ~(msk << start_bit);
+ tmp |= value << start_bit;
+ __raw_writel(tmp, addr);
+}
+
+/*
+ * wait_on_value(): common routine to allow waiting for changes in
+ * volatile regs.
+ */
+u32 wait_on_value(u32 read_bit_mask, u32 match_value, u32 read_addr, u32 bound)
+{
+ u32 i = 0, val;
+ do {
+ ++i;
+ val = __raw_readl(read_addr) & read_bit_mask;
+ if (val == match_value)
+ return 1;
+ if (i == bound)
+ return 0;
+ } while (1);
+}
+
/*
* get_device_type(): tell if GP/HS/EMU/TST
*/
{
return __raw_readl(CONTROL_OMAP_STATUS);
}
+
+/*
+ * get_cpu_id(): extract cpu id
+ * returns 0 for ES1.0, cpuid otherwise
+ */
+u32 get_cpu_id(void)
+{
+ u32 cpuid = 0;
+
+ /*
+ * On ES1.0 the IDCODE register is not exposed on L4
+ * so using CPU ID to differentiate between ES1.0 and > ES1.0.
+ */
+ __asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0":"=r"(cpuid));
+ if ((cpuid & 0xf) == 0x0) {
+ return 0;
+ } else {
+ /* Decode the IDs on > ES1.0 */
+ cpuid = __raw_readl(CONTROL_IDCODE);
+ }
+
+ return cpuid;
+}
+
+/*
+ * get_cpu_family(void): extract cpu info
+ */
+u32 get_cpu_family(void)
+{
+ u16 hawkeye;
+ u32 cpu_family;
+ u32 cpuid = get_cpu_id();
+
+ if (cpuid == 0)
+ return CPU_OMAP34XX;
+
+ hawkeye = (cpuid >> HAWKEYE_SHIFT) & 0xffff;
+ switch (hawkeye) {
+ case HAWKEYE_OMAP34XX:
+ cpu_family = CPU_OMAP34XX;
+ break;
+ case HAWKEYE_AM35XX:
+ cpu_family = CPU_AM35XX;
+ break;
+ case HAWKEYE_OMAP36XX:
+ cpu_family = CPU_OMAP36XX;
+ break;
+ default:
+ cpu_family = CPU_OMAP34XX;
+ }
+
+ return cpu_family;
+}
+
+/*
+ * get_cpu_rev(void): extract version info
+ */
+u32 get_cpu_rev(void)
+{
+ u32 cpuid = get_cpu_id();
+
+ if (cpuid == 0)
+ return CPU_3XX_ES10;
+ else
+ return (cpuid >> CPU_3XX_ID_SHIFT) & 0xf;
+}
+
+/*
+ * print_cpuinfo(void): print CPU information
+ */
+int print_cpuinfo(void)
+{
+ char *cpu_family_s, *cpu_s, *sec_s;
+
+ switch (get_cpu_family()) {
+ case CPU_OMAP34XX:
+ cpu_family_s = "OMAP";
+ switch (get_cpu_type()) {
+ case OMAP3503:
+ cpu_s = "3503";
+ break;
+ case OMAP3515:
+ cpu_s = "3515";
+ break;
+ case OMAP3525:
+ cpu_s = "3525";
+ break;
+ case OMAP3530:
+ cpu_s = "3530";
+ break;
+ default:
+ cpu_s = "35XX";
+ break;
+ }
+ break;
+ case CPU_AM35XX:
+ cpu_family_s = "AM";
+ switch (get_cpu_type()) {
+ case AM3505:
+ cpu_s = "3505";
+ break;
+ case AM3517:
+ cpu_s = "3517";
+ break;
+ default:
+ cpu_s = "35XX";
+ break;
+ }
+ break;
+ case CPU_OMAP36XX:
+ cpu_family_s = "OMAP";
+ switch (get_cpu_type()) {
+ case OMAP3730:
+ cpu_s = "3630/3730";
+ break;
+ default:
+ cpu_s = "36XX/37XX";
+ break;
+ }
+ break;
+ default:
+ cpu_family_s = "OMAP";
+ cpu_s = "35XX";
+ }
+
+ switch (get_device_type()) {
+ case TST_DEVICE:
+ sec_s = "TST";
+ break;
+ case EMU_DEVICE:
+ sec_s = "EMU";
+ break;
+ case HS_DEVICE:
+ sec_s = "HS";
+ break;
+ case GP_DEVICE:
+ sec_s = "GP";
+ break;
+ default:
+ sec_s = "?";
+ }
+
+ printf("%s%s-%s ES%s\n",
+ cpu_family_s, cpu_s, sec_s, rev_s[get_cpu_rev()]);
+
+ return 0;
+}
+
+/*
+ * get_sysboot_value(void): return SYS_BOOT[4:0]
+ */
+u32 get_sysboot_value(void)
+{
+ int mode;
+ mode = __raw_readl(CONTROL_STATUS) & (SYSBOOT_MASK);
+ return mode;
+}
+
+/*
+ * get_sys_clkin_sel(): returns the sys_clkin_sel field value based on
+ * input oscillator clock frequency.
+ */
+void get_sys_clkin_sel(u32 osc_clk, u32 *sys_clkin_sel)
+{
+ if (osc_clk == S38_4M)
+ *sys_clkin_sel = 4;
+ else if (osc_clk == S26M)
+ *sys_clkin_sel = 3;
+ else if (osc_clk == S19_2M)
+ *sys_clkin_sel = 2;
+ else if (osc_clk == S13M)
+ *sys_clkin_sel = 1;
+ else if (osc_clk == S12M)
+ *sys_clkin_sel = 0;
+}
+
+/*
+ * secure_unlock(void): setup security registers for access
+ * (GP Device only)
+ */
+void secure_unlock(void)
+{
+ /* Permission values for registers -Full fledged permissions to all */
+ #define UNLOCK_1 0xFFFFFFFF
+ #define UNLOCK_2 0x00000000
+ #define UNLOCK_3 0x0000FFFF
+ /* Protection Module Register Target APE (PM_RT)*/
+ __raw_writel(UNLOCK_1, RT_REQ_INFO_PERMISSION_1);
+ __raw_writel(UNLOCK_1, RT_READ_PERMISSION_0);
+ __raw_writel(UNLOCK_1, RT_WRITE_PERMISSION_0);
+ __raw_writel(UNLOCK_2, RT_ADDR_MATCH_1);
+
+ __raw_writel(UNLOCK_3, GPMC_REQ_INFO_PERMISSION_0);
+ __raw_writel(UNLOCK_3, GPMC_READ_PERMISSION_0);
+ __raw_writel(UNLOCK_3, GPMC_WRITE_PERMISSION_0);
+
+ __raw_writel(UNLOCK_3, OCM_REQ_INFO_PERMISSION_0);
+ __raw_writel(UNLOCK_3, OCM_READ_PERMISSION_0);
+ __raw_writel(UNLOCK_3, OCM_WRITE_PERMISSION_0);
+ __raw_writel(UNLOCK_2, OCM_ADDR_MATCH_2);
+
+ /* IVA Changes */
+ __raw_writel(UNLOCK_3, IVA2_REQ_INFO_PERMISSION_0);
+ __raw_writel(UNLOCK_3, IVA2_READ_PERMISSION_0);
+ __raw_writel(UNLOCK_3, IVA2_WRITE_PERMISSION_0);
+
+ __raw_writel(UNLOCK_1, SMS_RG_ATT0); /* SDRC region 0 public */
+}
+
+/*
+ * try_unlock_memory(void): If chip is GP type, unlock the SRAM for
+ * general use.
+ */
+void try_unlock_memory(void)
+{
+ int mode;
+
+ /* if GP device unlock device SRAM for general use */
+ /* secure code breaks for Secure/Emulation device - HS/E/T*/
+ mode = get_device_type();
+ if (mode == GP_DEVICE) {
+ secure_unlock();
+ }
+ return;
+}
git.openpandora.org / pandora-x-loader.git / blobdiff