diff options
Diffstat (limited to 'drivers/marvell/ccu.c')
| -rw-r--r-- | drivers/marvell/ccu.c | 56 |
1 files changed, 54 insertions, 2 deletions
diff --git a/drivers/marvell/ccu.c b/drivers/marvell/ccu.c index 1e4ab44da..b4251f49b 100644 --- a/drivers/marvell/ccu.c +++ b/drivers/marvell/ccu.c @@ -26,10 +26,40 @@ #define ADDRESS_MASK (0xFFFFFFF0) #define CCU_WIN_ALIGNMENT (0x100000) +/* + * Physical address of the highest address of window bits[31:19] = 0x6FF + * Physical address of the lowest address of window bits[18:6] = 0x6E0 + * Unit Id bits [5:2] = 2 + * RGF Window Enable bit[0] = 1 + * 0x37f9b809 - 11011111111 0011011100000 0010 0 1 + */ +#define ERRATA_WA_CCU_WIN4 0x37f9b809U + +/* + * Physical address of the highest address of window bits[31:19] = 0xFFF + * Physical address of the lowest address of window bits[18:6] = 0x800 + * Unit Id bits [5:2] = 2 + * RGF Window Enable bit[0] = 1 + * 0x7ffa0009 - 111111111111 0100000000000 0010 0 1 + */ +#define ERRATA_WA_CCU_WIN5 0x7ffa0009U + +/* + * Physical address of the highest address of window bits[31:19] = 0x1FFF + * Physical address of the lowest address of window bits[18:6] = 0x1000 + * Unit Id bits [5:2] = 2 + * RGF Window Enable bit[0] = 1 + * 0xfffc000d - 1111111111111 1000000000000 0011 0 1 + */ +#define ERRATA_WA_CCU_WIN6 0xfffc000dU + #define IS_DRAM_TARGET(tgt) ((((tgt) == DRAM_0_TID) || \ ((tgt) == DRAM_1_TID) || \ ((tgt) == RAR_TID)) ? 1 : 0) +#define CCU_RGF(win) (MVEBU_CCU_BASE(MVEBU_AP0) + \ + 0x90 + 4 * (win)) + /* For storage of CR, SCR, ALR, AHR abd GCR */ static uint32_t ccu_regs_save[MVEBU_CCU_MAX_WINS * 4 + 1]; @@ -54,8 +84,8 @@ static void dump_ccu(int ap_index) win_id)); start = ((uint64_t)alr << ADDRESS_SHIFT); end = (((uint64_t)ahr + 0x10) << ADDRESS_SHIFT); - printf("\tccu %02x 0x%016llx 0x%016llx\n", - target_id, start, end); + printf("\tccu%d %02x 0x%016llx 0x%016llx\n", + win_id, target_id, start, end); } } win_cr = mmio_read_32(CCU_WIN_GCR_OFFSET(ap_index)); @@ -81,6 +111,12 @@ void ccu_win_check(struct addr_map_win *win) } } +int ccu_is_win_enabled(int ap_index, uint32_t win_id) +{ + return mmio_read_32(CCU_WIN_CR_OFFSET(ap_index, win_id)) & + WIN_ENABLE_BIT; +} + void ccu_enable_win(int ap_index, struct addr_map_win *win, uint32_t win_id) { uint32_t ccu_win_reg; @@ -360,3 +396,19 @@ int init_ccu(int ap_index) return 0; } + +void errata_wa_init(void) +{ + /* + * EERATA ID: RES-3033912 - Internal Address Space Init state causes + * a hang upon accesses to [0xf070_0000, 0xf07f_ffff] + * Workaround: Boot Firmware (ATF) should configure CCU_RGF_WIN(4) to + * split [0x6e_0000, 0x1ff_ffff] to values [0x6e_0000, 0x6f_ffff] and + * [0x80_0000, 0xff_ffff] and [0x100_0000, 0x1ff_ffff],that cause + * accesses to the segment of [0xf070_0000, 0xf1ff_ffff] + * to act as RAZWI. + */ + mmio_write_32(CCU_RGF(4), ERRATA_WA_CCU_WIN4); + mmio_write_32(CCU_RGF(5), ERRATA_WA_CCU_WIN5); + mmio_write_32(CCU_RGF(6), ERRATA_WA_CCU_WIN6); +} |